/* ============================================
   My Teacher Planbook — shared styles
   Light, professional theme in the brand palette (electric blue →
   violet → magenta, cyan highlights). Used by index.html (app shell),
   login.html, register.html, verify-email.html.
   ============================================ */

:root {
    --topbar-height: 64px;
    --sidebar-width: 264px;

    /* Brand palette — pulled from the logo (glowing book/laptop/calendar). */
    --brand-blue:      #2563EB;
    --brand-blue-deep: #1D4ED8;
    --brand-indigo:    #4F46E5;
    --brand-violet:    #7C3AED;
    --brand-cyan:      #06B6D4;
    --brand-magenta:   #D946EF;
    --brand-gradient:  linear-gradient(90deg, #2563EB 0%, #7C3AED 55%, #D946EF 100%);
    --brand-gradient-soft: linear-gradient(135deg, rgba(37,99,235,0.12), rgba(124,58,237,0.12), rgba(217,70,239,0.12));

    /* Surfaces — light canvas */
    --bg:            #F5F7FB;
    --bg-card:       #FFFFFF;
    --bg-input:      #FFFFFF;
    --bg-secondary:  #EEF2F9;
    --surface-2:     #F8FAFC;
    --surface-overlay: rgba(15, 23, 42, 0.45);
    --surface-glass: rgba(255, 255, 255, 0.82);
    --surface-glass-border: rgba(15, 23, 42, 0.08);

    --text:       #0F172A;
    --text-muted: #475569;
    --text-dim:   #94A3B8;

    --border:        rgba(15, 23, 42, 0.10);
    --border-strong: rgba(15, 23, 42, 0.16);

    --danger:   #DC2626;  --danger-bg:  rgba(220, 38, 38, 0.10);
    --success:  #16A34A;  --success-bg: rgba(22, 163, 74, 0.10);
    --warning:  #D97706;  --warning-bg: rgba(217, 119, 6, 0.10);
    --info:     #2563EB;

    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 6px 20px rgba(15, 23, 42, 0.10);
    --shadow-lg: 0 12px 36px rgba(15, 23, 42, 0.16);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 26px;
    --radius-pill: 9999px;

    --font-display: 'Sora', 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body:    'Inter', 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --motion-fast: 130ms;
    --motion:      220ms;
    --ease:        cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
    --focus-ring:  0 0 0 3px rgba(37, 99, 235, 0.35);
}

/* Optional dark overlay — light is the default; users opt in via the
   topbar toggle. Same token names flip so components react automatically. */
[data-theme="dark"] {
    --bg:            #0B1020;
    --bg-card:       #131C31;
    --bg-input:      #131C31;
    --bg-secondary:  #0F1730;
    --surface-2:     #18233D;
    --surface-glass: rgba(19, 28, 49, 0.72);
    --surface-glass-border: rgba(255, 255, 255, 0.06);
    --surface-overlay: rgba(0, 0, 0, 0.62);

    --text:       #F8FAFC;
    --text-muted: #94A3B8;
    --text-dim:   #64748B;

    --border:        rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.14);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.40);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.50);
    --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.55);
}

* { box-sizing: border-box; }
input, select, textarea { font-size: 16px; } /* iOS focus-zoom guard */

html, body {
    margin: 0; padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

body { overflow-x: hidden; }

h1, h2, h3, .display { font-family: var(--font-display); }

a { color: var(--brand-blue); text-decoration: none; font-weight: 600; }
a:hover { text-decoration: underline; }

.bg-glow {
    background:
        radial-gradient(circle at 12% 8%,  rgba(37, 99, 235, 0.10), transparent 42%),
        radial-gradient(circle at 88% 4%,  rgba(217, 70, 239, 0.08), transparent 40%),
        radial-gradient(circle at 70% 92%, rgba(124, 58, 237, 0.08), transparent 46%),
        var(--bg);
}

/* ===================== App shell ===================== */
.shell { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
    display: flex; align-items: center; justify-content: space-between;
    height: calc(var(--topbar-height) + env(safe-area-inset-top, 0px));
    padding: env(safe-area-inset-top, 0px) 18px 0;
    border-bottom: 1px solid var(--surface-glass-border);
    background: var(--surface-glass);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    position: sticky; top: 0; z-index: 70; flex-shrink: 0;
}
.topbar::after {
    content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
    background: var(--brand-gradient); opacity: 0.55; pointer-events: none;
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-logo { height: 40px; width: auto; display: block; }
.actions { display: flex; align-items: center; gap: 10px; }

/* Animated hamburger — three bars that morph into an X when the nav is open. */
.hamburger {
    --hb-w: 22px; --hb-h: 2.2px; --hb-gap: 5px;
    position: relative; width: 40px; height: 40px; flex-shrink: 0;
    background: transparent; border: 1px solid var(--border-strong);
    border-radius: 10px; cursor: pointer; padding: 0;
    display: inline-flex; align-items: center; justify-content: center;
    transition: background var(--motion-fast) var(--ease), border-color var(--motion-fast) var(--ease);
}
.hamburger:hover { background: var(--bg-secondary); border-color: var(--text-muted); }
.hamburger:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.hamburger .hb-box { position: relative; width: var(--hb-w); height: calc(var(--hb-h) + 2 * var(--hb-gap)); }
.hamburger .hb-line {
    position: absolute; left: 0; width: 100%; height: var(--hb-h);
    background: var(--text); border-radius: 2px;
    transition: transform var(--motion) var(--ease-out), opacity var(--motion-fast) var(--ease), background var(--motion) var(--ease);
}
.hamburger .hb-line:nth-child(1) { top: 0; }
.hamburger .hb-line:nth-child(2) { top: calc(var(--hb-gap) + var(--hb-h) / 2); transform: translateY(-50%); }
.hamburger .hb-line:nth-child(3) { bottom: 0; }
body.nav-open .hamburger .hb-line:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); background: var(--brand-violet); }
body.nav-open .hamburger .hb-line:nth-child(2) { opacity: 0; }
body.nav-open .hamburger .hb-line:nth-child(3) { bottom: auto; top: 50%; transform: translateY(-50%) rotate(-45deg); background: var(--brand-violet); }

/* Icon button (theme toggle, bell, etc.) */
.icon-btn {
    background: transparent; color: var(--text); border: 1px solid var(--border-strong);
    border-radius: 10px; width: 40px; height: 40px; padding: 0; cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
    transition: background var(--motion-fast) var(--ease), border-color var(--motion-fast) var(--ease);
}
.icon-btn:hover { background: var(--bg-secondary); border-color: var(--text-muted); }
.icon-btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.icon-btn svg { width: 20px; height: 20px; }
.theme-icon-sun { display: none; }
[data-theme="dark"] .theme-icon-moon { display: none; }
[data-theme="dark"] .theme-icon-sun  { display: block; }

/* ===================== Buttons ===================== */
.btn-primary, .btn-secondary, .btn-ghost, .btn-danger {
    font-family: var(--font-body); font-weight: 700; font-size: 14px;
    border-radius: var(--radius-sm); padding: 10px 18px; cursor: pointer;
    border: 1px solid transparent; display: inline-flex; align-items: center;
    justify-content: center; gap: 8px; transition: transform var(--motion-fast) var(--ease),
    box-shadow var(--motion) var(--ease), background var(--motion) var(--ease), opacity var(--motion) var(--ease);
    text-decoration: none; line-height: 1.2;
}
.btn-primary { background: var(--brand-gradient); color: #fff; box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(124, 58, 237, 0.30); text-decoration: none; }
.btn-secondary { background: var(--bg-card); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--bg-secondary); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--bg-secondary); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.05); }
.btn-primary:disabled, .btn-secondary:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-block { width: 100%; }

/* ===================== Shell body + sidebar ===================== */
.shell-body { flex: 1; display: flex; position: relative; }

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex; flex-direction: column;
    position: fixed; top: var(--topbar-height); bottom: 0; left: 0; z-index: 60;
    transform: translateX(0);
    transition: transform var(--motion) var(--ease-out);
    overflow-y: auto;
}
.sidebar-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 16px 10px; gap: 8px;
}
.sidebar-logo { height: 34px; width: auto; }
.sidebar-close { display: none; background: transparent; border: 0; color: var(--text-dim);
    font-size: 20px; cursor: pointer; width: 32px; height: 32px; border-radius: 8px; }
.sidebar-close:hover { background: var(--bg-secondary); color: var(--text); }

.sidebar-user {
    display: flex; align-items: center; gap: 10px; margin: 4px 12px 10px;
    padding-bottom: 12px; border-bottom: 1px solid var(--border);
}
.sidebar-user-avatar {
    width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    background: var(--brand-gradient); color: #fff; font-weight: 700; font-size: 15px;
}
.sidebar-user-text { display: flex; flex-direction: column; min-width: 0; }
.sidebar-user-name { color: var(--text); font-weight: 700; font-size: 14px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-user-plan { color: var(--text-dim); font-size: 11.5px; }

.sidebar-nav { flex: 1; padding: 4px 12px 12px; }
.sidebar-section-label {
    font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--text-dim); font-weight: 700; padding: 14px 10px 6px;
}
.nav-btn {
    width: 100%; display: flex; align-items: center; gap: 12px;
    background: transparent; border: 0; border-radius: var(--radius-sm);
    padding: 10px 12px; margin-bottom: 2px; cursor: pointer;
    color: var(--text-muted); font-family: var(--font-body); font-weight: 600; font-size: 14.5px;
    text-align: left; transition: background var(--motion-fast) var(--ease), color var(--motion-fast) var(--ease);
}
.nav-btn:hover { background: var(--bg-secondary); color: var(--text); }
.nav-btn.active { background: var(--brand-gradient-soft); color: var(--brand-blue-deep); }
.nav-btn.active .nav-icon { filter: none; }
.nav-icon { font-size: 18px; width: 22px; text-align: center; flex-shrink: 0; }
.nav-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.sidebar-footer { padding: 12px; border-top: 1px solid var(--border); }
.sidebar-footer .nav-btn { color: var(--text-dim); }

/* Backdrop (mobile drawer) */
.sidebar-backdrop {
    position: fixed; inset: var(--topbar-height) 0 0 0; z-index: 55;
    background: var(--surface-overlay); opacity: 0; pointer-events: none;
    transition: opacity var(--motion) var(--ease);
    backdrop-filter: blur(2px);
}

/* Main panel — offset by the docked sidebar on desktop */
.main-panel {
    flex: 1; min-width: 0;
    margin-left: var(--sidebar-width);
    padding: 26px clamp(16px, 4vw, 40px) 60px;
    transition: margin-left var(--motion) var(--ease-out);
}

/* Desktop: sidebar docked by default; collapsible.
   Mobile: sidebar off-canvas, opened by the hamburger. */
@media (max-width: 900px) {
    .sidebar { transform: translateX(-100%); box-shadow: var(--shadow-lg); }
    .sidebar-close { display: inline-flex; align-items: center; justify-content: center; }
    .main-panel { margin-left: 0; }
    body.nav-open .sidebar { transform: translateX(0); }
    body.nav-open .sidebar-backdrop { opacity: 1; pointer-events: auto; }
}
/* Desktop collapsed state (user toggled the hamburger closed) */
@media (min-width: 901px) {
    body.nav-collapsed .sidebar { transform: translateX(-100%); }
    body.nav-collapsed .main-panel { margin-left: 0; }
}

/* ── Unit actions: inline at the top, docked to the bottom on scroll ──────
   The bar itself carries the row layout (it used to be inline styles) — it has
   to live in CSS now because the docked state restyles the same element. */
.uacts { display: flex; gap: 8px; flex-wrap: wrap; }

/* Docked. left follows the sidebar so the bar never slides under it, and the
   buttons centre so they clear the floating AI card in the bottom-right. */
.uacts.is-docked {
    position: fixed; left: var(--sidebar-width); right: 0; bottom: 0; z-index: 90;
    justify-content: center;
    padding: 10px clamp(16px, 4vw, 40px);
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    box-shadow: 0 -6px 20px rgba(15, 23, 42, 0.10);
    animation: uactsUp var(--motion) var(--ease-out);
}
/* Slides UP from below the fold — the movement says where the bar came from. */
@keyframes uactsUp { from { transform: translateY(100%); opacity: 0; } to { transform: none; opacity: 1; } }
/* Off-canvas sidebar (mobile) and the desktop collapsed state both free the
   full width — the same two rules .main-panel already follows. */
@media (max-width: 900px) { .uacts.is-docked { left: 0; } }
@media (min-width: 901px) { body.nav-collapsed .uacts.is-docked { left: 0; } }
/* A bar that flies in is exactly what this setting is about. */
@media (prefers-reduced-motion: reduce) { .uacts.is-docked { animation: none; } }
/* Scroll room so the docked bar never sits on the last lesson card. Set while
   docked only, so an undocked page keeps its own spacing. */
body.mtp-uacts-docked .main-panel { padding-bottom: 104px; }

/* ===================== Views / cards ===================== */
.view-panel { animation: fadeIn var(--motion) var(--ease-out); }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.page-head { display: flex; align-items: flex-start; justify-content: space-between;
    gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.page-title { font-size: 1.9rem; margin: 0 0 4px; letter-spacing: -0.02em; }
.page-sub { color: var(--text-muted); margin: 0; font-size: 0.95rem; }
/* Rich (WYSIWYG) subscription description rendered on plan cards. */
.plan-desc p { margin: 0 0 6px; }
.plan-desc ul, .plan-desc ol { margin: 4px 0 8px; padding-left: 20px; }
.plan-desc li { margin: 2px 0; }
.plan-desc [data-savings], .plan-desc strong { color: inherit; }

.card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 22px; box-shadow: var(--shadow-sm);
}
.card-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

.stat-tile { display: flex; flex-direction: column; gap: 6px; }
.stat-tile .stat-value { font-size: 2rem; font-weight: 800; font-family: var(--font-display);
    background: var(--brand-gradient); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-tile .stat-label { color: var(--text-muted); font-size: 0.9rem; font-weight: 600; }
/* Two-bucket AI credit breakdown (plan vs purchased) */
.credit-split { margin-top: 10px; display: flex; flex-direction: column; }
.credit-split .cs-row { display: flex; align-items: baseline; gap: 8px; font-size: 0.82rem; padding: 7px 0; border-top: 1px solid var(--border); }
.credit-split .cs-row span { color: var(--text-muted); flex: 1; }
.credit-split .cs-row b { font-weight: 800; font-variant-numeric: tabular-nums; }
.credit-split .cs-row em { color: var(--text-dim); font-style: normal; font-size: 0.72rem; }

.class-chip { display: inline-flex; align-items: center; gap: 8px; }
.class-swatch { width: 14px; height: 14px; border-radius: 4px; flex-shrink: 0; box-shadow: inset 0 0 0 1px rgba(0,0,0,0.08); }

.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700;
    padding: 3px 10px; border-radius: var(--radius-pill); }
.badge-ai { background: var(--brand-gradient-soft); color: var(--brand-violet); }
.badge-manual { background: var(--bg-secondary); color: var(--text-muted); }
.badge-dirty { background: var(--warning-bg); color: var(--warning); }

/* Empty state */
.empty-state { text-align: center; padding: 48px 20px; color: var(--text-muted); }
.empty-state .emoji { font-size: 44px; display: block; margin-bottom: 12px; }
.empty-state h3 { margin: 0 0 6px; color: var(--text); }
.empty-state p { margin: 0 auto 18px; max-width: 420px; }

/* ===================== Forms ===================== */
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: 13.5px; margin-bottom: 6px; color: var(--text); }
.input, .select, .textarea {
    width: 100%; background: var(--bg-input); color: var(--text);
    border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
    padding: 11px 14px; font-family: var(--font-body); transition: border-color var(--motion-fast) var(--ease), box-shadow var(--motion-fast) var(--ease);
}
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--brand-blue); box-shadow: var(--focus-ring); }
.textarea { min-height: 96px; resize: vertical; }

/* Toggle switch (for the lesson-element on/off list) */
.switch { position: relative; display: inline-block; width: 42px; height: 24px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider { position: absolute; inset: 0; cursor: pointer; background: var(--border-strong);
    border-radius: var(--radius-pill); transition: background var(--motion) var(--ease); }
.switch .slider::before { content: ''; position: absolute; height: 18px; width: 18px; left: 3px; top: 3px;
    background: #fff; border-radius: 50%; transition: transform var(--motion) var(--ease); box-shadow: var(--shadow-sm); }
.switch input:checked + .slider { background: var(--brand-blue); }
.switch input:checked + .slider::before { transform: translateX(18px); }

/* ===================== Modal ===================== */
.modal-backdrop { position: fixed; inset: 0; z-index: 200; background: var(--surface-overlay);
    display: flex; align-items: center; justify-content: center; padding: 20px;
    backdrop-filter: blur(3px); animation: fadeIn var(--motion-fast) var(--ease-out); }
.modal { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); width: 100%; max-width: 520px; max-height: 90vh; overflow-y: auto; }
/* Wider dialog for settings that need columns of controls (⚙ Sections has a row of
   per-section toggles plus the Student Summary panel). Two class selectors outrank
   the bare `.modal` above, so `max-width` here wins without !important — the base
   520px cap is what squashed the split modal in #3313, so it is worth being exact
   about which rule is meant to win. */
.modal.modal--wide { max-width: min(860px, 96vw); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 20px 22px 0; }
.modal-head h2 { margin: 0; font-size: 1.3rem; }
.modal-body { padding: 18px 22px; }
.modal-foot { padding: 0 22px 20px; display: flex; gap: 10px; justify-content: flex-end; }
/* Phones (smaller than a tablet): every modal goes full-screen. !important
   overrides the per-modal inline max-width/height some modals set. */
@media (max-width: 767px) {
    .modal-backdrop { padding: 0 !important; }
    .modal {
        width: 100% !important; max-width: none !important;
        height: 100% !important; max-height: none !important;
        border-radius: 0 !important; border: 0 !important;
    }
    .modal-head { padding-top: calc(20px + env(safe-area-inset-top)) !important; }
    .modal-foot { padding-bottom: calc(20px + env(safe-area-inset-bottom)) !important; }
}

/* ===================== Toast ===================== */
#toastHost { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%);
    z-index: 300; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast { background: var(--text); color: #fff; padding: 11px 18px; border-radius: var(--radius-pill);
    font-weight: 600; font-size: 14px; box-shadow: var(--shadow-lg); animation: toastIn var(--motion) var(--ease-out); }
.toast.toast-error { background: var(--danger); }
.toast.toast-success { background: var(--success); }
/* Offline banner + install prompt */
#mtpOfflineBar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 300; text-align: center;
    background: var(--warning-bg, rgba(217,119,6,0.14)); color: var(--warning, #B45309);
    border-top: 1px solid var(--warning, #D97706); padding: 8px 16px; font-size: 0.85rem; font-weight: 600; }
.mtp-install-bar { position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 300; margin: 0 auto; max-width: 540px;
    display: flex; align-items: center; gap: 10px; background: var(--bg-card, #fff); border: 1px solid var(--border-strong);
    border-radius: 12px; box-shadow: var(--shadow-lg, 0 12px 36px rgba(0,0,0,0.18)); padding: 10px 12px;
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px)); font-size: 0.9rem; }
.mtp-install-bar .mib-icon { font-size: 1.3rem; flex-shrink: 0; }
.mtp-install-bar .mib-text { flex: 1; min-width: 0; }
.mtp-install-bar .mib-go { flex-shrink: 0; white-space: nowrap; text-decoration: none; }
.mtp-install-bar .mib-x { background: none; border: none; cursor: pointer; color: var(--text-dim); font-size: 1rem; padding: 2px 6px; flex-shrink: 0; }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ===================== Spinner / misc ===================== */
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(37,99,235,0.25);
    border-top-color: var(--brand-blue); border-radius: 50%; animation: spin 0.7s linear infinite; vertical-align: -3px; }
@keyframes spin { to { transform: rotate(360deg); } }
/* A button that is doing the thing it says: the glyph turns while the click is in
   flight. Scoped to the glyph via the button itself, so no extra markup. */
.btn-sm.is-spin { animation: spin 0.9s linear infinite; }

.center-card { min-height: 60vh; display: flex; align-items: center; justify-content: center; }
.center-card .card { max-width: 420px; text-align: center; }
.center-card .emoji { font-size: 40px; display: block; margin-bottom: 10px; }

.hidden, [hidden] { display: none !important; }

/* ===================== Auth pages (login/register/verify) ===================== */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card { width: 100%; max-width: 440px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-xl); box-shadow: var(--shadow-lg); padding: 34px 30px; }
.auth-logo { display: block; height: 52px; margin: 0 auto 18px; }
.auth-card h1 { text-align: center; font-size: 1.5rem; margin: 0 0 6px; }
.auth-card .auth-sub { text-align: center; color: var(--text-muted); margin: 0 0 22px; font-size: 0.95rem; }
.sso-row { display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; }
.sso-btn { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%;
    background: var(--bg-card); border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
    padding: 11px; font-weight: 600; font-size: 14.5px; color: var(--text); cursor: pointer; font-family: var(--font-body);
    transition: background var(--motion-fast) var(--ease); }
.sso-btn:hover { background: var(--bg-secondary); }
.sso-btn img, .sso-btn svg { width: 18px; height: 18px; }
.auth-divider { display: flex; align-items: center; gap: 12px; color: var(--text-dim); font-size: 12px; margin: 6px 0 16px; }
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.auth-note { text-align: center; color: var(--text-muted); font-size: 13.5px; margin-top: 18px; }
/* Admin custom login/registration message (App Auth Controls). */
.auth-custom { color: var(--text); font-size: 0.95rem; line-height: 1.5; }
.auth-custom :first-child { margin-top: 0; }
.auth-custom :last-child { margin-bottom: 0; }
.auth-custom a { color: var(--brand-blue); font-weight: 600; }
.auth-msg { border-radius: var(--radius-sm); padding: 10px 14px; font-size: 13.5px; margin-bottom: 14px; font-weight: 600; }
.auth-msg-error { background: var(--danger-bg); color: var(--danger); }
.auth-msg-success { background: var(--success-bg); color: var(--success); }

/* ===================== Calendar (Phase 3) ===================== */
.cal-toolbar { display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:14px; }
/* Month/week nav (Today · ‹ · label · ›) — left-aligned, sitting just after the
   Month/Week/Today switch; on tablet and below it drops to its own full-width
   row (still left-aligned) so it's never cut off. */
.cal-nav { display:flex; align-items:center; gap:8px; flex-wrap:wrap; justify-content:flex-start; }
.cal-month-label { font-family:var(--font-display); font-weight:700; font-size:1.15rem; text-align:left; }
@media (max-width:1024px){
  .cal-nav { width:100%; justify-content:flex-start; }
}
.cal-layout { display:grid; grid-template-columns: 1fr 250px; gap:16px; align-items:start; }
@media (max-width: 860px){ .cal-layout { grid-template-columns:1fr; } }

/* min-width:0 lets this grid item shrink to the column width so its own
   overflow-x scrolls — without it the wide grid grows the page and the last
   day gets cut off on mobile. -webkit-overflow-scrolling for momentum on iOS. */
.cal-wrap { overflow-x:auto; min-width:0; -webkit-overflow-scrolling:touch; }
.cal-grid { display:grid; grid-template-columns:repeat(7,minmax(96px,1fr)); border:1px solid var(--border);
    border-radius:var(--radius-md); overflow:hidden; background:var(--bg-card); min-width:680px; }
.cal-dow { text-align:center; font-size:0.72rem; font-weight:700; letter-spacing:0.04em; text-transform:uppercase;
    color:var(--text-dim); padding:8px 4px; background:var(--surface-2); border-bottom:1px solid var(--border); }
.cal-cell { min-height:108px; border-right:1px solid var(--border); border-bottom:1px solid var(--border);
    padding:6px; display:flex; flex-direction:column; gap:4px; transition:background var(--motion-fast) var(--ease); }
.cal-cell:nth-child(7n) { border-right:0; }
.cal-cell.other-month { background:var(--surface-2); }
.cal-cell.weekend { background:color-mix(in srgb, var(--surface-2) 60%, transparent); }
.cal-cell.today .cal-daynum { background:var(--brand-gradient); color:#fff; }
.cal-cell.drop-hover { background:var(--brand-gradient-soft); outline:2px dashed var(--brand-blue); outline-offset:-2px; }
.cal-daynum { align-self:flex-start; font-size:0.78rem; font-weight:700; color:var(--text-muted);
    width:24px; height:24px; display:flex; align-items:center; justify-content:center; border-radius:50%; }
.cal-cell.other-month .cal-daynum { color:var(--text-dim); }

.cal-chip { display:flex; align-items:center; gap:5px; font-size:0.74rem; font-weight:600; color:#fff;
    padding:3px 6px; border-radius:6px; cursor:grab; line-height:1.25; box-shadow:var(--shadow-sm);
    overflow:hidden; }
.cal-chip:active { cursor:grabbing; }
.cal-chip .cc-title { flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.cal-chip .cc-x { opacity:0.8; font-weight:700; cursor:pointer; padding:0 1px; }
.cal-chip .cc-x:hover { opacity:1; }
.cal-chip.dragging { opacity:0.45; }

/* Shared sortable-list drag feedback (unit-page lessons, section template). */
.dnd-dragging { opacity:0.4; }
.dnd-placeholder { height:0; margin:3px 0; border-top:3px solid var(--brand-blue); border-radius:3px;
    box-shadow:0 0 0 2px color-mix(in srgb, var(--brand-blue) 20%, transparent); pointer-events:none; }
.dnd-over { outline:2px dashed color-mix(in srgb, var(--brand-blue) 55%, transparent); outline-offset:-3px; border-radius:8px; }

/* Day-cell header: day number on the left, quick-add "+" on the right. */
.cal-cell-head { display:flex; align-items:center; justify-content:space-between; gap:4px; }
.cal-quickadd { opacity:0; flex:none; width:20px; height:20px; border:none; border-radius:50%;
    background:var(--surface-2); color:var(--text-muted); font-size:16px; line-height:1; cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    transition:opacity var(--motion-fast) var(--ease), background var(--motion-fast) var(--ease), color var(--motion-fast) var(--ease); }
.cal-cell:hover .cal-quickadd, .cal-quickadd:focus-visible { opacity:1; }
.cal-quickadd:hover { background:var(--brand-gradient); color:#fff; }
@media (hover: none) { .cal-quickadd { opacity:.55; } } /* touch: no hover, keep it visible */

/* Right-click context menu (calendar lesson chips). */
.mtp-ctxmenu { position:fixed; z-index:1200; min-width:184px; padding:5px;
    background:var(--bg-card); border:1px solid var(--border); border-radius:10px; box-shadow:var(--shadow-lg); }
.mtp-ctxmenu button { display:flex; align-items:center; gap:9px; width:100%; text-align:left;
    background:none; border:none; padding:8px 10px; border-radius:6px; font-size:0.85rem; color:var(--text); cursor:pointer; }
.mtp-ctxmenu button:hover { background:var(--surface-2); }
.mtp-ctxmenu .ctx-danger { color:var(--danger, #DC2626); }
.mtp-ctxmenu .ctx-sep { height:1px; margin:4px 2px; background:var(--border); }

.cal-side .card { position:sticky; top:calc(var(--topbar-height) + 12px); }
.cal-unsched-list { display:flex; flex-direction:column; gap:6px; max-height:60vh; overflow-y:auto; }
.cal-unsched-item { display:flex; align-items:center; gap:7px; padding:7px 9px; border:1px solid var(--border);
    border-radius:var(--radius-sm); background:var(--surface-2); cursor:grab; font-size:0.82rem; }
.cal-unsched-item:active { cursor:grabbing; }
.cal-unsched-swatch { width:10px; height:10px; border-radius:3px; flex-shrink:0; }
.cal-side.drop-hover .card { outline:2px dashed var(--brand-blue); outline-offset:2px; }

/* ---- Calendar: week view + mode switch + today agenda ---- */
.cal-modeswitch { display:inline-flex; border:1px solid var(--border-strong); border-radius:var(--radius-sm); overflow:hidden; }
.cal-modeswitch button { background:var(--bg-card); color:var(--text-muted); border:0; padding:6px 14px; cursor:pointer;
    font-family:var(--font-body); font-weight:600; font-size:13px; border-right:1px solid var(--border); }
.cal-modeswitch button:last-child { border-right:0; }
.cal-modeswitch button.active { background:var(--brand-gradient); color:#fff; }
.cal-grid.cal-week { grid-template-columns:repeat(7,minmax(120px,1fr)); min-width:820px; }
.cal-grid.cal-week .cal-cell { min-height:280px; }
.cal-week-dow { text-align:center; padding:8px 4px; background:var(--surface-2); border-bottom:1px solid var(--border);
    font-size:0.72rem; font-weight:700; color:var(--text-dim); text-transform:uppercase; letter-spacing:0.04em; }
.cal-week-dow.today { color:#fff; background:var(--brand-blue); }

.today-agenda { display:flex; flex-direction:column; gap:14px; }
.today-agenda-date { font-family:var(--font-display); font-weight:700; font-size:1.05rem; margin-bottom:2px; }
.today-agenda.dash-hide-date .today-agenda-date { display:none; } /* header already shows the date off-today */
.today-class { border:1px solid var(--border); border-radius:var(--radius-md); overflow:hidden; background:var(--bg-card); }
.today-class-head { display:flex; align-items:center; gap:9px; padding:10px 14px; background:var(--surface-2);
    font-weight:700; border-bottom:1px solid var(--border); }
.today-class-swatch { width:12px; height:12px; border-radius:4px; flex-shrink:0; }
.tl-pubcal { margin-left:auto; font-size:0.76rem; font-weight:600; color:var(--brand,#2563eb); text-decoration:none;
    white-space:nowrap; padding:2px 9px; border:1px solid var(--border); border-radius:999px; }
.tl-pubcal:hover { background:var(--surface); border-color:var(--brand,#2563eb); }
.today-lesson { display:flex; align-items:center; gap:10px; padding:11px 14px; border-bottom:1px solid var(--border); cursor:pointer; transition:background var(--motion-fast) var(--ease); }
.today-lesson:hover { background:var(--bg-secondary); }
.today-lesson:focus-visible { outline:none; box-shadow:var(--focus-ring); border-radius:6px; }
.tl-wrap:last-child .today-lesson { border-bottom:0; }
.tl-wrap:last-child .tl-flow { border-bottom:0; }
/* Collapsible Lesson Flow under a dashboard row. Closed by default — the row is
   for scanning the day; the flow is opt-in detail. */
.tl-chev { flex:none; background:none; border:0; padding:6px 4px 6px 10px; margin-left:4px; cursor:pointer;
  color:var(--text-dim); font-size:0.8rem; line-height:1; border-radius:6px; border-left:1px solid var(--border);
  transition:transform var(--motion-fast) var(--ease), color var(--motion-fast) var(--ease); }
.tl-chev:hover { color:var(--brand-blue); background:var(--bg-secondary); }
.tl-chev:focus-visible { outline:none; box-shadow:var(--focus-ring); }
.tl-chev.on { transform:rotate(90deg); color:var(--brand-blue); }
.tl-flow { padding:2px 14px 12px 40px; border-bottom:1px solid var(--border); background:var(--bg-secondary); }
.tl-flow ol { margin:0; padding-left:18px; }
.tl-flow li { font-size:0.82rem; line-height:1.5; color:var(--text-muted); }
.tl-flow li strong { color:var(--text); }
.tl-flow-empty { margin:0; font-size:0.8rem; color:var(--text-dim); }
@media (prefers-reduced-motion: reduce) { .tl-chev { transition:none; } }
.today-lesson .tl-body { flex:1; min-width:0; }
.today-lesson .tl-title { font-weight:600; }
/* Unit short-title tag, to the LEFT of a lesson title on the dashboard and the
   calendar. Muted and non-wrapping so it reads as a label rather than part of the
   lesson name, and never steals a line from the title on a narrow chip. */
.today-lesson .tl-unit, .cal-chip .cc-unit {
  display:inline-block; margin-right:6px; padding:1px 6px; border-radius:999px;
  font-size:0.72em; font-weight:700; letter-spacing:.01em; white-space:nowrap;
  vertical-align:baseline; }
.today-lesson .tl-unit { background:var(--bg-secondary); color:var(--text-dim); }
/* On a coloured calendar chip the tag sits ON the class colour, so it needs a
   translucent light backing rather than the page's grey. */
.cal-chip .cc-unit { background:rgba(255,255,255,.26); color:#fff; margin-right:4px; padding:0 5px; }
.today-lesson .tl-open { color:var(--text-dim); font-size:1.3rem; line-height:1; flex-shrink:0; }
.today-lesson:hover .tl-open { color:var(--brand-blue); }
.today-empty { color:var(--text-muted); padding:6px 2px; }
.dash-today { margin-bottom:22px; }
.dash-comingup { font-size:.76rem; font-weight:700; color:var(--brand-blue); background:var(--brand-gradient-soft); padding:2px 10px; border-radius:999px; white-space:nowrap; }
.dash-today .today-agenda { overflow-x:hidden; } /* clip the slide-in so nothing peeks */
/* Day-stepper slide: prev enters from the left, next enters from the right. */
@keyframes dashSlideFromLeft  { from { transform:translateX(-26px); opacity:0; } to { transform:none; opacity:1; } }
@keyframes dashSlideFromRight { from { transform:translateX(26px);  opacity:0; } to { transform:none; opacity:1; } }
.today-agenda.dash-slide-prev { animation:dashSlideFromLeft  .22s ease; }
.today-agenda.dash-slide-next { animation:dashSlideFromRight .22s ease; }
@media (prefers-reduced-motion: reduce) {
  .today-agenda.dash-slide-prev, .today-agenda.dash-slide-next { animation:none; }
}

/* ---- Lesson editor: mini rich-text (WYSIWYG) per section ---- */
.rt { border:1px solid var(--border-strong); border-radius:var(--radius-sm); overflow:hidden; margin-top:8px; background:var(--bg-input); }
.rt-toolbar { display:flex; gap:2px; padding:4px; background:var(--surface-2); border-bottom:1px solid var(--border); }
.rt-toolbar button { background:transparent; border:0; border-radius:5px; min-width:30px; height:28px; padding:0 7px;
    cursor:pointer; color:var(--text-muted); font-size:13.5px; font-family:var(--font-body); }
.rt-toolbar button:hover { background:var(--bg-secondary); color:var(--text); }
.rt-editor { min-height:76px; max-height:280px; overflow-y:auto; padding:9px 12px; outline:none;
    font-size:15px; line-height:1.5; color:var(--text); }
.rt-editor:empty::before { content:attr(data-placeholder); color:var(--text-dim); pointer-events:none; }
.rt-editor ul, .rt-editor ol { margin:6px 0 6px 22px; }
.rt-editor p { margin:0 0 6px; }
.rt-editor:focus-within { }
.section-row { padding:12px 0; border-bottom:1px solid var(--border); }
.section-row:last-child { border-bottom:0; }

/* ---- AI Planner layout ---- */
@media (max-width: 820px) { .ai-layout { grid-template-columns: 1fr !important; } }

/* ---- Calendar: no-school days + locked lessons ---- */
.cal-cell.no-school { background: repeating-linear-gradient(45deg, var(--surface-2), var(--surface-2) 7px, var(--bg-secondary) 7px, var(--bg-secondary) 14px); }
.cal-noschool-label { font-size:0.7rem; font-weight:700; color:var(--text-muted); margin-top:4px; line-height:1.2; }
/* Lock is now just an INDICATOR shown only when locked (lock/unlock via
   right-click menu) — not a per-chip toggle. */
.cal-chip .cc-lock { opacity:.9; font-size:11px; cursor:default; }
.cal-chip.locked { box-shadow: inset 0 0 0 2px rgba(255,255,255,.7), var(--shadow-sm); cursor:default; }

/* ---- No-school day list (year editor) ---- */
.nsd-row { display:flex; align-items:center; gap:10px; width:100%; text-align:left; margin-bottom:6px;
    background:var(--surface-2); border:1px solid var(--border); border-radius:var(--radius-sm);
    padding:9px 12px; cursor:pointer; font-family:var(--font-body); transition:background var(--motion-fast) var(--ease); }
.nsd-row:hover { background:var(--bg-secondary); }
.nsd-row .nsd-name { flex:1; font-weight:600; color:var(--text); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.nsd-row .nsd-dates { color:var(--text-muted); font-size:0.82rem; white-space:nowrap; }

/* ---- Calendar: special days (school + a note) ---- */
.cal-cell.special-day { box-shadow: inset 3px 0 0 var(--warning); }
.cal-special-label { display:block; font-size:0.68rem; font-weight:700; color:var(--warning);
    background:var(--warning-bg); border-radius:4px; padding:1px 5px; margin:2px 0 3px; line-height:1.25;
    overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

/* ---- Unit overview: rich AI-authored unit plan (HTML) ---- */
.unit-overview { color: var(--text); font-size: 0.9rem; line-height: 1.55; }
.unit-overview h4 { margin: 14px 0 4px; font-size: 0.86rem; font-weight: 700;
    color: var(--text); letter-spacing: 0.01em; }
.unit-overview h4:first-child { margin-top: 0; }
.unit-overview p { margin: 0 0 8px; }
.unit-overview ul, .unit-overview ol { margin: 0 0 10px; padding-left: 20px; }
.unit-overview li { margin: 2px 0; }

/* ---- Calendar: class color key + unscheduled class chips ---- */
.cal-legend { display:flex; flex-wrap:wrap; gap:6px 16px; align-items:center; margin:0 0 12px; padding:8px 12px;
    border:1px solid var(--border); border-radius:var(--radius-sm); background:var(--surface-2); }
.cal-legend-item { display:inline-flex; align-items:center; gap:6px; font-size:0.8rem; color:var(--text); }
.cal-legend-swatch { width:12px; height:12px; border-radius:4px; flex-shrink:0; box-shadow:inset 0 0 0 1px rgba(0,0,0,0.08); }
.cal-uchips { display:flex; flex-wrap:wrap; gap:6px; }
.cal-uchip { display:inline-flex; align-items:center; gap:5px; font-size:0.76rem; padding:4px 9px; cursor:pointer;
    border:1px solid var(--border); border-radius:999px; background:var(--surface); color:var(--text); }
.cal-uchip:hover { border-color:var(--brand-blue); }
.cal-uchip.active { background:var(--brand-blue); color:#fff; border-color:var(--brand-blue); }
.cal-uchip.active .cal-legend-swatch { box-shadow:inset 0 0 0 1px rgba(255,255,255,0.5); }

/* ---- Global "AI is working…" floating card (shown on every page) ---- */
.ai-float { position: fixed; right: 18px; bottom: 18px; z-index: 1200; width: 300px; max-width: calc(100vw - 36px);
    background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px;
    box-shadow: 0 12px 32px rgba(15,23,42,0.18); }
.ai-float-head { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 0.86rem; color: var(--text); margin-bottom: 8px; }
.ai-float-row { margin-top: 8px; }
.ai-float-note { font-size: 0.76rem; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ai-float-bar { height: 5px; background: var(--surface-2); border-radius: 999px; overflow: hidden; margin-top: 5px; }
.ai-float-bar > div { height: 100%; background: var(--brand-blue); transition: width .3s; }
.ai-float-btn { margin-top: 10px; width: 100%; background: none; border: 0; color: var(--brand-blue); font-weight: 600;
    font-size: 0.8rem; cursor: pointer; padding: 4px; }

/* Global AI card — minimize control + minimized bubble */
.ai-float .ai-float-head { justify-content: space-between; }
.ai-float-min-btn { margin-left: auto; background: none; border: 0; color: var(--text-dim); cursor: pointer;
    font-size: 1.3rem; line-height: 1; width: 24px; height: 24px; border-radius: 6px; flex-shrink: 0; }
.ai-float-min-btn:hover { background: var(--surface-2); color: var(--text); }
.ai-float-min { position: fixed; right: 18px; bottom: 18px; z-index: 1200; width: 48px; height: 48px;
    border-radius: 50%; background: var(--surface); border: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(15,23,42,0.18); cursor: pointer; display: flex; align-items: center; justify-content: center; }
.ai-float-min:hover { border-color: var(--brand-blue); }
.ai-float-count { position: absolute; top: -4px; right: -4px; background: var(--brand-blue); color: #fff;
    font-size: 0.66rem; font-weight: 700; min-width: 18px; height: 18px; border-radius: 999px;
    display: flex; align-items: center; justify-content: center; padding: 0 4px; }

/* ---- Lesson rows: drag-to-reorder ---- */
.lesson-row.dragging { opacity: 0.5; }
.lesson-row.drop-hover { background: var(--surface-2); box-shadow: inset 0 2px 0 var(--brand-blue); }
/* Today's (or the next upcoming) scheduled lesson in a unit's list. */
.lesson-row--now { background: var(--brand-gradient-soft, rgba(37, 99, 235, 0.08)); box-shadow: inset 3px 0 0 var(--brand-blue, #2563EB); }
.lesson-now-badge { display: inline-block; font-size: 0.66rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; background: var(--brand-blue, #2563EB); color: #fff; border-radius: 6px; padding: 1px 6px; margin-left: 6px; vertical-align: middle; }

/* ---- Print-friendly lesson view (modal + print) ---- */
.lesson-print { color: var(--text); line-height: 1.5; }
.lesson-print h1 { font-size: 1.5rem; margin: 0 0 4px; }
.lesson-print .lp-meta { color: var(--text-dim); font-size: 0.85rem; margin-bottom: 10px; }
.lesson-print .lp-std { font-size: 0.9rem; margin: 0 0 14px; }
.lesson-print .lp-sec { margin: 0 0 16px; }
.lesson-print .lp-sec h2 { font-size: 1rem; margin: 0 0 8px; padding: 6px 10px; background: var(--bg-secondary);
  border-left: 3px solid var(--brand-blue, #2563EB); border-radius: 4px;
  -webkit-print-color-adjust: exact; print-color-adjust: exact; }
.lesson-print .lp-sec p, .lesson-print .lp-sec ul, .lesson-print .lp-sec ol { margin: 0 0 8px; }
.lesson-print .lp-sec ul, .lesson-print .lp-sec ol { padding-left: 20px; }
.lesson-print .lp-empty { color: var(--text-dim); }
/* Student-version view: audience toggle + tag. */
.lp-student-tag { font-size: 0.7rem; font-weight: 700; vertical-align: middle; padding: 2px 8px; border-radius: 999px;
    background: var(--brand-gradient-soft); color: var(--brand-violet, var(--brand-blue-deep)); }
.lp-aud-btn { border: 0; background: transparent; padding: 6px 14px; font-size: 0.82rem; font-weight: 600; color: var(--text-muted); cursor: pointer; }
.lp-aud-btn + .lp-aud-btn { border-left: 1px solid var(--border); }
.lp-aud-btn.active { background: var(--brand-blue); color: #fff; }
.section-row .t-student-chk { color: var(--text-muted); }
.section-row .t-student-chk:hover { color: var(--text); }

#mtpPrintRoot { display: none; }
@media print {
  body > *:not(#mtpPrintRoot) { display: none !important; }
  #mtpPrintRoot { display: block !important; padding: 0; color: #000; }
  #mtpPrintRoot .lesson-print { color: #000; }
  #mtpPrintRoot .lesson-print .lp-meta { color: #444; }
  #mtpPrintRoot .lesson-print .lp-sec h2 { border-color: #999; }
  /* margin:0 on the page removes the browser's auto header/footer (URL, date,
     page numbers). Our own logo header + URL footer are a table thead/tfoot
     that REPEAT on every printed page; their padding provides the page margins. */
  @page { margin: 0; }
  .mtp-print-doc { width: 100%; border-collapse: collapse; }
  .mtp-print-doc thead { display: table-header-group; }
  .mtp-print-doc tfoot { display: table-footer-group; }
  .mtp-print-doc thead td, .mtp-print-doc tfoot td { padding: 0; border: 0; }
  .mtp-print-doc > tbody > tr > td { padding: 4px 1.2cm 0; }
  .mtp-runhead { padding: 1cm 1.2cm 6px; }
  .mtp-runhead-logo { height: 30px; width: auto; display: block; }
  .mtp-runfoot { padding: 6px 1.2cm 1cm; margin-top: 6px; border-top: 1px solid #ccc; text-align: center; color: #666; font-size: 0.72rem; }
  /* Print-only calendar/list layouts */
  .mtp-print-head { margin: 0 0 12px; break-after: avoid; page-break-after: avoid; break-inside: avoid; }
  .mtp-print-head h1 { margin: 0; font-size: 1.35rem; color: #000; }
  .mtp-print-sub { color: #555; font-size: 0.82rem; margin-top: 2px; }
  /* Months flow and pack onto the page; each month stays whole (never split
     across a page), but small months share a page instead of each forcing a
     new one. */
  .mtp-print-month { margin: 0 0 14px; break-inside: avoid; page-break-inside: avoid; }
  .mtp-print-mlabel { font-size: 1rem; margin: 0 0 6px; color: #000; }
  .mtp-pcal { width: 100%; border-collapse: collapse; table-layout: fixed; }
  .mtp-pcal th, .mtp-pcal td { border: 1px solid #b0b0b0; vertical-align: top; padding: 3px 4px; overflow: visible; word-break: break-word; }
  .mtp-pcal th { background: #eee; font-size: 0.66rem; text-transform: uppercase; letter-spacing: .02em; }
  .mtp-pcal td { height: 92px; }
  .mtp-pcal.mtp-pcal-week td { height: 480px; }
  .mtp-pcal-other { background: #f7f7f7; color: #aaa; }
  .mtp-pcal-dn { font-weight: 700; font-size: 0.7rem; color: #333; margin-bottom: 2px; }
  .mtp-pcal-lsn { margin: 2px 0; font-size: 0.64rem; line-height: 1.24; text-align: left; break-inside: avoid; page-break-inside: avoid; }
  .mtp-pcal-sw { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 3px; vertical-align: middle; }
  .mtp-pcal-chip { display: block; color: #fff; font-weight: 700; font-size: 0.6rem; line-height: 1.3;
    padding: 1px 5px; border-radius: 4px; margin-bottom: 2px; text-align: left; overflow-wrap: anywhere;
    -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .mtp-pcal-title { font-weight: 700; text-align: left; }
  .mtp-pcal-lsn .pc-l { margin: 1px 0; text-align: left; }
  .mtp-pcal-lsn .pc-flow-step { display: block; margin-left: 6px; }
  .mtp-print-lsn { break-inside: avoid; page-break-inside: avoid; margin: 0 0 16px; padding-bottom: 8px; border-bottom: 1px solid #ddd; }

  /* ---- Blank sheets (the More tab): calendars and ruled sheets to write on ---- */
  /* "Fit on one page": the size comes from --fit-pt, which the builder computes
     from the content. Everything inside is sized in em so one variable moves the
     whole sheet, and the per-lesson chrome (margins, rules) tightens with it —
     at 7pt a 16px gap between lessons is most of the saving thrown away. */
  .mtp-print-doc.mtp-print-fit { font-size: var(--fit-pt, 9pt); line-height: 1.32; }
  /* .lesson-print sets line-height: 1.5 on itself, and INHERITANCE never beats a
     rule — without this the type shrinks while the leading does not, and the sheet
     barely gets shorter. Same story for the h1's 1.5rem: rem ignores --fit-pt, so
     every size inside the fit sheet is expressed in em. */
  .mtp-print-fit .lesson-print { line-height: 1.32; }
  .mtp-print-fit .mtp-print-lsn { margin: 0 0 0.5em; padding-bottom: 0.3em; }
  .mtp-print-fit .lesson-print h1 { font-size: 1.1em; margin: 0 0 0.15em; }
  .mtp-print-fit .lp-meta, .mtp-print-fit .lp-std { font-size: 0.85em; margin: 0 0 0.15em; }
  .mtp-print-fit .lp-sec, .mtp-print-fit .lp-flow { margin: 0.25em 0 0; }
  .mtp-print-fit .lp-sec h2, .mtp-print-fit .lp-flow h2 { font-size: 0.82em; margin: 0 0 0.1em; padding: 0; }
  .mtp-print-fit .lp-sec-body p, .mtp-print-fit .lp-sec-body ul, .mtp-print-fit .lp-sec p, .mtp-print-fit .lp-sec ul { margin: 0; }
  .mtp-print-fit .lp-sec-body ul, .mtp-print-fit .lp-sec ul { padding-left: 1.05em; }
  .mtp-print-fit .mtp-day-group { margin: 0 0 0.6em; }
  /* Two columns when shrinking alone cannot reach one page. break-inside on the
     lesson keeps a lesson whole rather than splitting its bullets across the
     gutter — which is also why the builder budgets 1.9 columns, not 2. */
  .mtp-print-fit-2col .mtp-print-list { column-count: 2; column-gap: 1.2em; }
  .mtp-print-fit-2col .mtp-print-lsn { break-inside: avoid; page-break-inside: avoid; }
  /* ---- A unit printed by WEEK: one card per calendar week ------------------
     The ask: week number and dates in the header, lessons inside, the day-date
     leading each lesson, days easy to tell apart, four weeks to a page. The page
     rule is the load-bearing one — break-after on every 4th card is what makes it
     four, and break-inside keeps a week whole so it never straddles the fold. */
  .mtp-wk-card { break-inside: avoid; page-break-inside: avoid; margin: 0 0 10px;
      border: 1pt solid #c7ced8; border-radius: 6px; overflow: hidden; }
  /* How many weeks land on a sheet is decided by the builder (mtpWeekPlan) and
     carried as a class, because it depends on how heavy the weeks are. */
  .mtp-wk-per-4 .mtp-wk-card:nth-of-type(4n) { break-after: page; page-break-after: always; }
  .mtp-wk-per-3 .mtp-wk-card:nth-of-type(3n) { break-after: page; page-break-after: always; }
  .mtp-wk-per-2 .mtp-wk-card:nth-of-type(2n) { break-after: page; page-break-after: always; }
  .mtp-wk-per-1 .mtp-wk-card { break-after: page; page-break-after: always; }
  .mtp-wk-list .mtp-wk-card:last-child { break-after: auto; page-break-after: auto; }
  .mtp-wk-head { display: flex; align-items: baseline; gap: 10px; margin: 0;
      padding: 4px 9px; background: #eef2f7; border-bottom: 1pt solid #c7ced8;
      font-size: 10pt; color: #000; }
  .mtp-wk-head .mtp-wk-n { font-weight: 800; letter-spacing: .01em; }
  .mtp-wk-head .mtp-wk-dates { font-weight: 600; color: #334155; }
  .mtp-wk-head .mtp-wk-count { margin-left: auto; font-size: 8pt; color: #64748b; font-weight: 600; }
  .mtp-wk-body { padding: 0; }
  /* Zebra, plus a rule down the left edge: a teacher scanning the card needs to
     see where one DAY ends and the next begins, which a gap alone does not give. */
  .mtp-wk-lsn { margin: 0; padding: 5px 9px 6px; border: 0; border-left: 3pt solid #cbd5e1;
      border-bottom: 1pt solid #e5e9f0; break-inside: avoid; page-break-inside: avoid; }
  .mtp-wk-body .mtp-wk-lsn:nth-child(odd) { background: #f6f8fb; }
  .mtp-wk-body .mtp-wk-lsn:last-child { border-bottom: 0; }
  .mtp-wk-lsn h1 { font-size: 10.5pt; margin: 0 0 2px; display: flex; flex-wrap: wrap;
      align-items: baseline; gap: 7px; }
  .mtp-wk-day { font-size: 8pt; font-weight: 800; text-transform: uppercase;
      letter-spacing: .03em; color: #1d4ed8; white-space: nowrap; }
  .mtp-wk-day--off { color: #94a3b8; }
  /* A multi-day lesson: its day tag, and the short "continued" row its later days
     print instead of repeating the whole plan. */
  .mtp-wk-span { font-size: 7.5pt; font-weight: 700; color: #475569; white-space: nowrap;
      border: 0.75pt solid #cbd5e1; border-radius: 999px; padding: 0 5px; }
  .mtp-wk-contd { font-size: 7.5pt; font-style: italic; color: #64748b; }
  .mtp-wk-cont { border-left-color: #e2e8f0; }
  .mtp-wk-cont h1 { font-weight: 600; }
  .mtp-pcal-day { margin-left: 4px; font-size: 6.5pt; font-weight: 700; color: #475569; white-space: nowrap; }
  .mtp-pcal-cont .mtp-pcal-title { font-weight: 500; }
  .mtp-wk-lsn .lp-sec, .mtp-wk-lsn .lp-flow { margin: 2px 0 0; }
  .mtp-wk-lsn .lp-sec h2, .mtp-wk-lsn .lp-flow h2 { font-size: 8pt; margin: 0 0 1px; padding: 0; background: none; }
  .mtp-wk-lsn .lp-sec-body p, .mtp-wk-lsn .lp-sec-body ul { margin: 0; }
  .mtp-wk-lsn .lp-sec-body ul { padding-left: 1.1em; }
  .mtp-print-blank { font-size: 10.5pt; }
  .mtp-print-blank .mtp-print-head { margin: 0 0 10px; padding-bottom: 6px; border-bottom: 1pt solid #222; }
  .mtp-print-blank .mtp-print-head h1 { font-size: 15pt; }
  .mtp-blank-page { break-after: page; page-break-after: always; }
  .mtp-blank-page:last-child { break-after: auto; page-break-after: auto; }
  .mtp-blank-mtitle { font-size: 12pt; margin: 0 0 6px; }
  .mtp-blankcal { width: 100%; border-collapse: collapse; table-layout: fixed; }
  .mtp-blankcal th { border: 0.75pt solid #999; background: #f2f2f2; font-size: 8pt; text-transform: uppercase;
    letter-spacing: .06em; padding: 3px 4px; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .mtp-blankcal td { border: 0.75pt solid #999; vertical-align: top; height: 92px; padding: 3px 4px; position: relative; }
  /* A month on its own page should USE the page. */
  .mtp-blank-page .mtpblankcal td, .mtp-blank-page .mtp-blankcal td { height: 1.15in; }
  .mtp-blank-dn { font-size: 9pt; font-weight: 700; color: #333; }
  .mtp-blank-other { background: #fafafa; }
  .mtp-blank-other .mtp-blank-dn { color: #bbb; font-weight: 400; }
  /* The ask: light, italic, at the BOTTOM of the date cell. */
  .mtp-blank-note { position: absolute; left: 4px; right: 4px; bottom: 3px;
    font-size: 7.5pt; font-style: italic; color: #999; line-height: 1.15;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  /* A week is five tall columns to write in. */
  .mtp-blankcal-week td { height: 7.6in; }
  .mtp-blankcal-week .mtp-blank-dn { font-size: 10pt; border-bottom: 0.5pt solid #ccc; padding-bottom: 3px; margin-bottom: 3px; }
  /* Twelve months on one sheet. */
  .mtp-blank-year { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px 10px; }
  .mtp-blank-mini { break-inside: avoid; page-break-inside: avoid; }
  .mtp-blank-mini h3 { font-size: 9pt; margin: 0 0 2px; text-align: center; }
  .mtp-blank-mini .mtp-blankcal td { height: 15px; padding: 0 2px; }
  .mtp-blank-mini .mtp-blankcal th { font-size: 6pt; padding: 1px 2px; }
  .mtp-blank-mini .mtp-blank-dn { font-size: 6.5pt; font-weight: 400; }
  .mtp-blank-mini .mtp-blank-note { display: none; }   /* no room, and the date carries it */
  .mtp-blank-mini .mtp-blank-hol .mtp-blank-dn { font-weight: 700; text-decoration: underline; }
  /* Ruled sheets: student information, communication log. */
  .mtp-blanksheet { width: 100%; border-collapse: collapse; }
  .mtp-blanksheet th { border: 0.75pt solid #999; background: #f2f2f2; font-size: 9pt; text-align: left;
    padding: 5px 6px; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .mtp-blanksheet td { border: 0.75pt solid #999; height: 30px; padding: 4px 6px; }

  /* ---- A SINGLE DAY: compact type, the CLASS as the only header ----
     Scoped to .mtp-print-day so month/week/unit printouts are untouched. pt (not
     rem) because print is a physical medium. The scale is deliberate and must stay
     in this order: date 14 > CLASS 12.5 > lesson title 11 > body 10.5 > labels 8.5. */
  .mtp-print-day { font-size: 10.5pt; line-height: 1.4; }
  .mtp-print-day .mtp-print-head { margin: 0 0 13px; padding-bottom: 6px; border-bottom: 1pt solid #222; }
  .mtp-print-day .mtp-print-head h1 { font-size: 14pt; letter-spacing: -0.01em; }
  .mtp-print-day .mtp-print-sub { font-size: 8pt; color: #666; margin-top: 2px;
    text-transform: uppercase; letter-spacing: .08em; }
  /* The class name, stated once per group instead of on every lesson. */
  .mtp-print-day .mtp-day-group { break-inside: auto; margin: 0 0 15px; }
  .mtp-print-day .mtp-day-class { font-size: 12.5pt; font-weight: 700; color: #000;
    margin: 0 0 8px; padding: 0 0 4px; border-bottom: 0.75pt solid #bbb;
    break-after: avoid; page-break-after: avoid; }
  .mtp-print-day .mtp-day-classsub { display: block; font-size: 8pt; font-weight: 400;
    color: #666; text-transform: uppercase; letter-spacing: .07em; margin-top: 2px; }
  .mtp-print-day .mtp-print-lsn { border-bottom: 0; margin: 0 0 11px; padding: 0 0 2px; }
  .mtp-print-day .mtp-day-group .mtp-print-lsn + .mtp-print-lsn { border-top: 0.5pt dotted #ccc; padding-top: 9px; }
  /* The CLASS is the header; a lesson title sits UNDER it and must read smaller. */
  .mtp-print-day .lesson-print h1 { font-size: 11pt; font-weight: 600; margin: 0 0 2px; }
  .mtp-print-day .lesson-print .lp-meta { font-size: 8.5pt; color: #666; font-style: italic; margin-bottom: 6px; }
  /* A lesson title must never be the last thing on a page with its content overleaf.
     `break-inside: avoid` on the lesson cannot help once the lesson is taller than a
     page — the browser then breaks wherever it likes, which is right under the
     heading. These push the break BEFORE the title instead. */
  .mtp-print-day .lesson-print h1,
  .mtp-print-day .lesson-print .lp-meta,
  .mtp-print-day .lesson-print .lp-std { break-after: avoid; page-break-after: avoid; }
  .mtp-print-day .lesson-print .lp-sec h2 + * { break-before: avoid; page-break-before: avoid; }
  .mtp-print-day .lesson-print p,
  .mtp-print-day .lesson-print li { orphans: 2; widows: 2; }
  .mtp-print-day .lesson-print .lp-std { font-size: 9.5pt; margin: 0 0 7px; }
  .mtp-print-day .lesson-print .lp-sec { margin: 0 0 8px; break-inside: avoid; page-break-inside: avoid; }
  /* A filled grey bar per section is heavy at this size — a rule reads better. */
  .mtp-print-day .lesson-print .lp-sec h2 { font-size: 8.5pt; font-weight: 700; color: #333;
    background: none; border: 0; border-bottom: 0.5pt solid #ddd; border-radius: 0;
    padding: 0 0 3px; margin: 0 0 6px; text-transform: uppercase; letter-spacing: .07em;
    break-after: avoid; page-break-after: avoid; }
  .mtp-print-day .lesson-print .lp-sec p, .mtp-print-day .lesson-print .lp-sec ul,
  .mtp-print-day .lesson-print .lp-sec ol { margin: 0 0 7px; }
  .mtp-print-day .lesson-print .lp-sec li { margin: 0 0 3px; }
  .mtp-print-day .lesson-print th, .mtp-print-day .lesson-print td { font-size: 9.5pt; }
  .mtp-print-day .mtp-runfoot { font-size: 8pt; }
}
/* #mtpPrintRoot only exists for printing — never show it on screen. */
#mtpPrintRoot { display: none; }

/* ---- Print options dialog: tabs ---- */
.pc-tabs { display: flex; gap: 4px; padding: 10px 22px 0; border-bottom: 1px solid var(--border); }
.pc-tab { font: inherit; font-size: 0.88rem; font-weight: 600; color: var(--text-dim); background: none;
    border: 0; border-bottom: 2px solid transparent; padding: 7px 12px; margin-bottom: -1px; cursor: pointer; border-radius: 6px 6px 0 0; }
.pc-tab:hover { color: var(--text); background: var(--surface-2); }
.pc-tab.is-on { color: var(--brand-blue); border-bottom-color: var(--brand-blue); background: none; }

/* ---- Print options dialog ---- */
.print-field { margin: 0 0 16px; }
.print-legend { font-weight: 700; font-size: 0.82rem; margin: 0 0 7px; }
.print-checks { display: flex; flex-direction: column; gap: 7px; }
.print-checks-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 7px; }
.pc-scope { align-items: flex-start; }
.mtp-sw { display: inline-block; width: 12px; height: 12px; border-radius: 3px; }

/* ---- Public-calendar share modal ---- */
.pc-check { display:flex; align-items:center; gap:8px; font-size:0.85rem; font-weight:400; }
.pc-toggle input, .pc-check input { width:16px; height:16px; }

/* ---- Calendar legend as multi-select show/hide toggles ---- */
.cal-legend-toggle { display:inline-flex; align-items:center; gap:6px; font-size:0.8rem; color:var(--text);
    background:var(--surface); border:1px solid var(--border); border-radius:999px; padding:4px 11px; cursor:pointer; }
.cal-legend-toggle:hover { border-color:var(--brand-blue); }
.cal-legend-toggle.off { opacity:0.45; text-decoration:line-through; background:var(--surface-2); }
.cal-legend-toggle.off .cal-legend-swatch { filter:grayscale(1); }

/* ---- Single-select class chips (Units page) ---- */
.class-chips { display:flex; gap:8px; flex-wrap:wrap; margin:0 0 14px; }
.class-chip-btn { display:inline-flex; align-items:center; gap:7px; font-size:0.85rem; color:var(--text);
    background:var(--surface); border:1px solid var(--border); border-radius:999px; padding:6px 13px; cursor:pointer; white-space:nowrap; }
.class-chip-btn:hover { border-color:var(--chip, var(--brand-blue)); }
.class-chip-btn.active { border-color:var(--chip, var(--brand-blue)); box-shadow:inset 0 0 0 1px var(--chip, var(--brand-blue)); font-weight:700; background:var(--surface-2); }

/* On narrow screens, let chip rows scroll horizontally instead of wrapping. */
@media (max-width:640px){
  .class-chips, .cal-legend { flex-wrap:nowrap; overflow-x:auto; -webkit-overflow-scrolling:touch; padding-bottom:4px; }
  .class-chip-btn, .cal-legend-toggle { flex:0 0 auto; }
}

/* ---- Lesson buckets (Lessons / New AI Lessons / Inactive) ---- */
.lesson-card-head { display:flex; align-items:baseline; gap:10px; flex-wrap:wrap; padding:14px 16px 10px; }
.lesson-card-head h3 { margin:0; font-size:1.05rem; }
.lesson-card-head .page-sub { font-size:0.76rem; }
.lesson-list { min-height:16px; }
.lesson-list.bucket-hover { background:var(--surface-2); box-shadow:inset 0 0 0 2px var(--brand-blue); border-radius:8px; }
.lesson-empty { text-align:center; }

/* ---- AI Suggest Updates chat ---- */
.chat-scroll { overflow-y:auto; flex:1; min-height:240px; max-height:52vh; background:var(--surface-2);
    display:flex; flex-direction:column; gap:8px; padding:14px; }
.chat-bubble { max-width:85%; padding:9px 12px; border-radius:14px; font-size:0.88rem; line-height:1.4; white-space:pre-wrap; word-wrap:break-word; }
.chat-bubble.ai { align-self:flex-start; background:var(--surface); border:1px solid var(--border); border-bottom-left-radius:4px; }
.chat-bubble.me { align-self:flex-end; background:var(--brand-blue); color:#fff; border-bottom-right-radius:4px; }
.chat-bubble.thinking { color:var(--text-dim); letter-spacing:2px; }

/* ---- ✨ Unit AI workspace: chat left, lessons right ----
   Sized by CLASS, never inline: an inline width on a .modal is what clipped the
   split panes in #3317, and the phone rule above (.modal full-screen, !important)
   has to be able to win below 768px. */
.modal.ws-modal { max-width: min(1240px, 96vw); height: min(880px, 92vh); max-height: 92vh;
    display: flex; flex-direction: column; overflow: hidden; }
.ws-head { padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.ws-grid { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 380px); }
.ws-chat { min-width: 0; min-height: 0; display: flex; flex-direction: column; border-right: 1px solid var(--border); }
.ws-src { font-size: 0.78rem; color: var(--text-dim); padding: 8px 16px; border-bottom: 1px solid var(--border); }
.chat-scroll.ws-scroll { max-height: none; min-height: 0; }
.ws-compose { padding: 10px 16px 14px; display: flex; flex-direction: column; gap: 8px; border-top: 1px solid var(--border); }
.ws-asking { font-size: 0.8rem; color: var(--text-dim); overflow-wrap: anywhere; }
.ws-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.ws-chip { font: inherit; font-size: 0.78rem; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--border);
    background: var(--surface); color: inherit; cursor: pointer; text-align: left; }
.ws-chip:hover { border-color: var(--brand-blue); }
.ws-inputrow { display: flex; gap: 8px; align-items: flex-end; }
.ws-inputrow textarea { flex: 1; min-width: 0; resize: vertical; min-height: 44px; max-height: 160px; }
.ws-lessons { min-width: 0; min-height: 0; display: flex; flex-direction: column; background: var(--surface-2); }
.ws-lessons-head { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-bottom: 1px solid var(--border); }
.ws-list { flex: 1; min-height: 0; overflow-y: auto; padding: 4px 10px 14px; }
.ws-group { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--text-dim); margin: 12px 4px 6px; }
.ws-lesson { display: flex; width: 100%; gap: 10px; align-items: flex-start; text-align: left; padding: 8px 10px; margin: 0 0 6px;
    border: 1px solid var(--border); border-radius: 10px; background: var(--bg-card); color: inherit; font: inherit; cursor: pointer; }
.ws-lesson:hover { border-color: var(--brand-blue); }
.ws-lesson.is-sel { border-color: var(--brand-blue); background: color-mix(in srgb, var(--brand-blue) 14%, var(--bg-card));
    box-shadow: inset 3px 0 0 var(--brand-blue); }
.ws-lab { flex: 0 0 auto; min-width: 26px; font-weight: 700; font-size: 0.78rem; color: var(--text-dim); line-height: 1.35; }
.ws-lesson.is-sel .ws-lab { color: var(--brand-blue); }
.ws-title { flex: 1; min-width: 0; font-size: 0.86rem; line-height: 1.35; overflow-wrap: anywhere; }
.ws-action { align-self: stretch; border: 1px solid var(--brand-blue); border-radius: 12px; background: var(--bg-card); padding: 10px 12px; }
.ws-action-title { font-weight: 700; font-size: 0.88rem; overflow-wrap: anywhere; }
.ws-action-body { font-size: 0.8rem; margin: 6px 0 8px; white-space: pre-wrap; overflow-wrap: anywhere; }
.ws-action-foot { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.ws-note { align-self: stretch; font-size: 0.8rem; color: var(--text-dim); background: var(--surface-2);
    border-radius: 8px; padding: 8px 10px; }
.ws-offer { align-self: flex-start; }
/* Update confirm panel. (Showing/hiding uses the `hidden` attribute, which the global
   `[hidden]{display:none !important}` rule makes win over .ws-action-foot's display:flex.) */
.ws-cf { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); }
.ws-cf-h { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--text-dim); margin: 10px 0 4px; }
.ws-cf-h:first-child { margin-top: 0; }
.ws-cf-row { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; font-size: 0.84rem; line-height: 1.35; margin: 3px 0; cursor: pointer; overflow-wrap: anywhere; }
.ws-cf-row input { margin-top: 3px; flex: 0 0 auto; }
.ws-cf-row .page-sub { font-size: 0.78rem; }
.ws-cf-all { padding-bottom: 4px; margin-bottom: 2px; border-bottom: 1px dotted var(--border); }   /* .page-sub is sized for page headers — too big inline */
.ws-cf-sum { font-size: 0.82rem; margin: 10px 0 8px; padding: 8px 10px; border-radius: 8px; background: var(--surface-2); }
.ws-cf-sum.is-warn { background: color-mix(in srgb, var(--danger) 12%, var(--bg-card)); color: var(--text); }
/* Tablet portrait and down: lessons stack ABOVE the chat. */
@media (max-width: 900px) {
    .ws-grid { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 32%) minmax(0, 1fr); }
    .ws-lessons { order: -1; border-bottom: 1px solid var(--border); }
    .ws-chat { border-right: 0; }
}

/* ---- Collapsible unit overview ---- */
.unit-overview-card > summary { list-style:none; }
.unit-overview-card > summary::-webkit-details-marker { display:none; }
.unit-overview-card > summary::before { content:'▸'; display:inline-block; margin-right:8px; color:var(--text-dim); transition:transform .15s; }
.unit-overview-card[open] > summary::before { transform:rotate(90deg); }

/* ---- Boot loader (shown immediately, removed once auth resolves) ---- */
#bootLoader { position: fixed; inset: 0; z-index: 9999; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 22px; background: var(--bg);
    transition: opacity .35s ease; }
#bootLoader.hide { opacity: 0; pointer-events: none; }
#bootLoader .boot-logo { height: 46px; width: auto; animation: boot-pulse 1.5s ease-in-out infinite; }
#bootLoader .boot-spinner { width: 46px; height: 46px; border-radius: 50%;
    border: 4px solid var(--border); border-top-color: var(--brand-blue); border-right-color: var(--brand-violet);
    animation: boot-spin .8s linear infinite; }
@keyframes boot-spin { to { transform: rotate(360deg); } }
@keyframes boot-pulse { 0%, 100% { opacity: .55; } 50% { opacity: 1; } }

/* ---- Chat "typing" indicator (three bouncing dots) ---- */
.chat-bubble.thinking { padding: 10px 14px; }
.typing-dots { display: inline-flex; gap: 4px; align-items: center; }
.typing-dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--text-dim);
    display: inline-block; animation: typing-bounce 1.2s infinite ease-in-out both; }
.typing-dots i:nth-child(1) { animation-delay: -0.32s; }
.typing-dots i:nth-child(2) { animation-delay: -0.16s; }
@keyframes typing-bounce { 0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; } 40% { transform: scale(1); opacity: 1; } }

/* Lesson rows (unit page): on tablet/phone, collapse the action icons into a
   single ⋯ menu so they never crowd the title; the title + sub-info keep the
   full width. Desktop keeps the inline buttons and hides the ⋯ button. */
.lesson-menu-btn { display: none; }
.lesson-menu-pop {
  position: fixed; z-index: 200; min-width: 210px; padding: 6px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column;
}
.lesson-menu-pop button {
  text-align: left; background: transparent; border: 0; cursor: pointer;
  font: inherit; color: var(--text); padding: 11px 12px; border-radius: 8px; min-height: 44px;
}
.lesson-menu-pop button:hover { background: var(--surface-2); }
.lesson-menu-pop button.danger { color: var(--danger); }
@media (max-width: 1024px) {
  .lesson-row > .lesson-drag { display: none; }
  .lesson-row > button:not(.lesson-menu-btn) { display: none; }
  .lesson-menu-btn { display: inline-flex; }
}

/* ---- AI usage modal ---- */
.usage-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.usage-table th { text-align: left; color: var(--text-dim); font-weight: 600; font-size: 0.74rem; text-transform: uppercase; letter-spacing: .02em; padding: 4px 8px; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--bg-card); }
.usage-table td { padding: 6px 8px; border-bottom: 1px solid var(--border); }

/* Graphic-organizer tables inside a lesson's content (lesson view + print). */
.lesson-print table, .lp-sec table { border-collapse: collapse; margin: 8px 0; width: auto; max-width: 100%; }
.lesson-print th, .lesson-print td, .lp-sec th, .lp-sec td { border: 1px solid var(--border-strong); padding: 6px 10px; text-align: left; vertical-align: top; font-size: 0.9rem; }
.lesson-print th, .lp-sec th { background: var(--surface-2); font-weight: 700; }
@media print {
  #mtpPrintRoot .lesson-print table td, #mtpPrintRoot .lesson-print table th { border-color: #999; }
  #mtpPrintRoot .lesson-print th { background: #f0f0f0; }
}
/* Copy/Print toolbar shown above each graphic-organizer table in the lesson view. */
.go-tools { display: flex; align-items: center; gap: 8px; margin: 10px 0 2px; flex-wrap: wrap; }
.go-tools-label { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-dim); margin-right: auto; }
/* Print a single organizer, sized to the page WITH margins (the global
   @page margin is 0, so inset the content itself or the printer's non-printable
   border clips it). */
@media print {
  #mtpPrintRoot .mtp-go-print { padding: 0.5in; box-sizing: border-box; }
  #mtpPrintRoot .mtp-go-print h1 { font-size: 20px; margin: 0 0 14px; color: #000; }
  #mtpPrintRoot .mtp-go-print table { width: 100%; table-layout: fixed; border-collapse: collapse; }
  #mtpPrintRoot .mtp-go-print th, #mtpPrintRoot .mtp-go-print td { border: 1px solid #999; padding: 14px 16px; font-size: 15px; vertical-align: top; text-align: left; word-wrap: break-word; overflow-wrap: anywhere; }
  #mtpPrintRoot .mtp-go-print th { background: #f0f0f0; font-weight: 700; }
}

/* ============ Display board — canvas of movable boxes (KEEP IN SYNC with display/index.html) ============ */
.display-stage { position:relative; width:100%; max-width:960px; margin:0 auto; aspect-ratio:16/9;
  border-radius:var(--radius-md); background:var(--brand-gradient); color:#fff; overflow:hidden;
  box-shadow:0 6px 24px rgba(0,0,0,.18); container-type:size; }
.display-stage.dsp-bgimg { background-size:cover; background-position:center; }
.display-stage.dsp-editing { outline:2px dashed rgba(255,255,255,.28); outline-offset:-2px; }
.dsp-emptyhint { position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  text-align:center; padding:8%; opacity:.75; font-style:italic; font-size:2.4cqw; }
/* a box (positioned in % of the stage; fonts in container units so app + screen match) */
.dbox { position:absolute; box-sizing:border-box; display:flex; flex-direction:column; color:#fff; min-height:0; }
.dbox-body { flex:1; min-height:0; overflow:auto; line-height:1.2; }
.dbox-text { white-space:pre-wrap; word-break:break-word; }
.dbox-text ul, .dbox-text ol { margin:.2em 0; padding-left:1.4em; }
.dbox-text li { margin:0; }
.dbox-text p { margin:0 0 .3em; }
/* mini rich-text toolbar for display boxes */
.dsp-fmt-bar { position:fixed; z-index:200; display:flex; gap:2px; padding:3px; background:var(--bg-card,#fff); border:1px solid var(--border-strong); border-radius:8px; box-shadow:var(--shadow-md,0 6px 20px rgba(0,0,0,.15)); }
.dsp-fmt-bar button { min-width:28px; height:26px; padding:0 7px; border:none; background:none; cursor:pointer; border-radius:5px; font-size:13px; line-height:1; color:var(--text); white-space:nowrap; }
.dsp-fmt-bar button:hover { background:var(--bg-secondary,rgba(0,0,0,.06)); }
.dsp-fmt-sep { width:1px; align-self:stretch; background:var(--border); margin:2px 3px; }
.dsp-fmt-bar .dsp-fmt-color { min-width:18px; width:18px; height:18px; padding:0; border:1px solid var(--border-strong); border-radius:4px; }
.dsp-fmt-bar .dsp-fmt-color:hover { outline:2px solid var(--brand,#2563EB); outline-offset:1px; }
.dbox-heading .dbox-body { font-family:var(--font-display); font-weight:800; font-size:calc(7cqw * var(--fs,1)); line-height:1.05; }
.dbox-message .dbox-body { font-size:calc(3.4cqw * var(--fs,1)); }
.dbox-content .dbox-body { font-size:calc(3.2cqw * var(--fs,1)); }
.dbox-className .dbox-body { font-weight:700; font-size:calc(3.2cqw * var(--fs,1)); opacity:.92; }
.dbox-date .dbox-body { font-weight:600; font-size:calc(3cqw * var(--fs,1)); opacity:.9; }
.dbox-lessonTitle .dbox-body { font-family:var(--font-display); font-weight:800; font-size:calc(4.2cqw * var(--fs,1)); line-height:1.1; }
.dsp-secbtn.active { background:var(--brand,#2563EB); color:#fff; border-color:var(--brand,#2563EB); }
.dbox-section .dbox-label { font-weight:700; text-transform:uppercase; letter-spacing:.04em; font-size:2cqw; opacity:.85; margin-bottom:.4cqw; display:flex; align-items:center; gap:.6cqw; }
.dbox-section .dbox-body { font-size:calc(2.7cqw * var(--fs,1)); }
.dbox-clock .dbox-body { font-weight:700; font-size:calc(5cqw * var(--fs,1)); text-align:right; text-shadow:0 1px 3px rgba(0,0,0,.4); }
.dbox-timer .dbox-body { display:flex; flex-direction:column; align-items:center; justify-content:center; gap:.8cqw; }
.dbox-timer .dsp-timer-time { font-family:var(--font-display); font-weight:800; font-size:calc(13cqw * var(--fs,1)); line-height:1; font-variant-numeric:tabular-nums; text-shadow:0 2px 6px rgba(0,0,0,.35); }
.dsp-badge { font-size:.62em; font-weight:700; background:rgba(255,255,255,.22); border-radius:5px; padding:1px 5px; letter-spacing:.02em; }
/* editing chrome — app only */
.dbox-edit { border:1px solid rgba(255,255,255,.35); border-radius:8px; background:rgba(15,23,42,.16); }
.dbox-edit .dbox-head { display:flex; align-items:center; gap:6px; padding:2px 4px; font-size:11px;
  background:rgba(15,23,42,.38); border-radius:7px 7px 0 0; }
.dbox-edit .dbox-drag { cursor:move; user-select:none; touch-action:none; font-size:13px; opacity:.85; }
.dbox-edit .dbox-title { flex:1; opacity:.85; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.dbox-edit .dbox-body { padding:4px 8px; outline:none; }
.dbox-edit .dbox-body[contenteditable]:focus { background:rgba(0,0,0,.16); border-radius:0 0 7px 7px; }
.dbox-edit .dbox-rz { position:absolute; right:-5px; bottom:-5px; width:15px; height:15px; border-radius:3px;
  background:#fff; border:1px solid var(--border); cursor:nwse-resize; touch-action:none; }
.dbox-mini { background:none; border:none; color:#fff; cursor:pointer; font-size:12px; line-height:1; padding:0 3px; opacity:.8; }
.dbox-mini:hover { opacity:1; }
/* per-box (card) background color */
.dbox--bg { border-radius:10px; }
.dbox-edit.dbox--bg .dbox-body { padding:8px 12px; }
.dsp-bg-menu { display:flex; flex-direction:row; flex-wrap:wrap; gap:6px; min-width:0; max-width:210px; padding:8px; }
.dsp-bg-menu .dsp-bg-swatch { width:24px; height:24px; padding:0; border:1px solid var(--border-strong); border-radius:6px; cursor:pointer; }
.dsp-bg-menu .dsp-bg-swatch:hover { outline:2px solid var(--brand,#2563EB); outline-offset:1px; }
.dsp-bg-menu .dsp-bg-none { display:flex; align-items:center; justify-content:center; background:var(--bg-card,#fff); color:var(--text-dim); font-size:12px; }
.dsp-timer-ctrls { display:flex; align-items:center; gap:4px; flex-wrap:wrap; justify-content:center; font-size:12px; }
.dsp-timer-ctrls input { width:44px; text-align:center; padding:2px 4px; }
.dsp-toolbar { display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin-bottom:10px; }
.dsp-tb-sep { width:1px; height:20px; background:var(--border); }
.dsp-addbtn.active { background:var(--brand,#2563EB); color:#fff; border-color:var(--brand,#2563EB); }
/* countdown-expiry animation (shared with the projected page) */
@keyframes dsp-flash { 0%,100%{ opacity:0; } 50%{ opacity:1; } }
.display-stage.dsp-expired::after { content:''; position:absolute; inset:0; background:rgba(239,68,68,.5);
  animation:dsp-flash 1s steps(1) infinite; pointer-events:none; z-index:5; }
@keyframes dsp-pulse { 0%,100%{ transform:scale(1); } 50%{ transform:scale(1.16); } }
.dbox-timer.dsp-expired .dsp-timer-time { animation:dsp-pulse .6s ease-in-out infinite; color:#fecaca; }

/* ===================== Personal library + lesson attachments ===================== */
.lib-usage { margin-bottom:12px; }
.lib-usage-bar { height:8px; border-radius:6px; background:var(--surface-2,rgba(0,0,0,.08)); overflow:hidden; }
.lib-usage-bar span { display:block; height:100%; background:var(--brand,#2563EB); border-radius:6px; transition:width .2s; }
.lib-usage-txt { font-size:.78rem; color:var(--text-dim); margin-top:4px; }
.lib-admin { display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin:0 0 12px; padding:8px 12px; border:1px dashed var(--border-strong); border-radius:8px; }
.lib-toolbar { display:flex; gap:8px; align-items:center; margin-bottom:10px; }
.lib-toolbar .lib-search { flex:1; }
.lib-status:not(:empty) { font-size:.82rem; color:var(--text-dim); margin-bottom:8px; }
.lib-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:12px; }
.lib-card { border:1px solid var(--border); border-radius:10px; overflow:hidden; display:flex; flex-direction:column; background:var(--surface,#fff); }
.lib-thumb { aspect-ratio:4/3; background-size:cover; background-position:center; background-color:var(--surface-2,rgba(0,0,0,.05)); }
.lib-thumb-file { display:flex; align-items:center; justify-content:center; font-size:2.6rem; }
.lib-name { font-size:.82rem; font-weight:600; padding:6px 8px 0; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.lib-meta { font-size:.72rem; color:var(--text-dim); padding:0 8px 6px; }
.lib-actions { display:flex; gap:6px; align-items:center; padding:0 8px 8px; margin-top:auto; }
.lib-actions > :first-child { flex:1; text-align:center; }
/* per-section attach row in the lesson editor */
.sec-attach { display:flex; flex-wrap:wrap; gap:6px; align-items:center; margin-top:8px; }
.att-chip { display:inline-flex; align-items:center; gap:6px; font-size:.78rem; background:var(--surface-2,rgba(0,0,0,.06)); border:1px solid var(--border); border-radius:999px; padding:3px 6px 3px 10px; }
.att-chip button { background:none; border:none; cursor:pointer; color:var(--text-dim); font-size:.9rem; line-height:1; padding:0 2px; }
.att-chip button:hover { color:var(--danger); }
/* attachments shown under a section title on the lesson */
.lp-attach { display:flex; flex-wrap:wrap; gap:10px; margin:8px 0 4px; }
.lp-att-img img { max-height:120px; max-width:200px; border-radius:8px; border:1px solid var(--border); display:block; }
.lp-att-file { display:inline-flex; align-items:center; gap:6px; font-size:.9rem; text-decoration:none; background:var(--surface-2,rgba(0,0,0,.06)); border:1px solid var(--border); border-radius:8px; padding:6px 10px; color:inherit; }
.lp-att-file:hover { border-color:var(--brand,#2563EB); }
.lp-attach-add { margin-top:6px; opacity:.85; }
.lp-att-rm { background:none; border:none; cursor:pointer; color:var(--text-dim); font-size:.8rem; line-height:1; padding:0 4px; margin-left:-4px; align-self:flex-start; }
.lp-att-rm:hover { color:var(--danger); }
/* 🌐 / 🔒 per attachment — publish THIS file on the class's public calendar.
   Sits beside the ✕ and styled like it, so the two read as one control strip. */
.lp-att-pub-btn { background:none; border:none; cursor:pointer; font-size:.8rem; line-height:1;
  padding:0 4px; align-self:flex-start; opacity:.75; }
.lp-att-pub-btn:hover { opacity:1; }
.lp-att-pub-btn[aria-pressed="true"] { opacity:1; }
/* A file already on the public calendar is marked in the read-only view too, so the
   state is visible without entering edit mode. */
.lp-att-pubtag { font-size:.72em; opacity:.8; }
.lp-att-file.lp-att-pub { border-color: var(--brand-blue, #2563EB); }

/* ── Feature batch 2026-08-24: review flag, multi-day, archives, viewer tools, footer ── */
.badge-review { background: rgba(220,38,38,0.12); color: var(--danger, #DC2626); border: 1px solid rgba(220,38,38,0.28); }
.icon-btn.nr-on { background: rgba(220,38,38,0.14); border-radius: 8px; }
.icon-btn.nr-reviewed { background: rgba(22,163,74,0.16); border-radius: 8px; }

/* Multi-day calendar chips */
.cal-chip .cc-day { font-size: 0.68rem; font-weight: 800; opacity: 0.9; margin-left: 3px; padding: 0 4px; border-radius: 6px; background: rgba(255,255,255,0.28); }
.cal-chip.cc-cont { opacity: 0.82; background-image: repeating-linear-gradient(45deg, rgba(255,255,255,0.16) 0 6px, transparent 6px 12px); }
.cal-chip.cc-private { outline: 1px dashed rgba(255,255,255,0.7); outline-offset: -2px; }

/* Lesson viewer: per-section show/hide + inline edit tools */
.lp-sec-tools { float: right; display: inline-flex; gap: 4px; margin-left: 8px; }
.lp-sec-tools button { opacity: 0.55; }
.lp-sec:hover .lp-sec-tools button { opacity: 1; }
.lp-sec--hidden { opacity: 0.5; }
.lp-sec--hidden .lp-sec-body { filter: grayscale(0.4); }

/* Unit archives */
.unit-archive summary { list-style: revert; }
.arch-chiprow { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 6px 0; }
.arch-chiplabel { font-size: 0.75rem; font-weight: 700; color: var(--text-dim); min-width: 58px; }

/* Global app footer (branding / copyright) */
.app-footer { margin-top: auto; padding: 18px 16px; text-align: center; font-size: 0.78rem; color: var(--text-dim); border-top: 1px solid var(--border); }
.app-footer a { color: inherit; text-decoration: none; }
.app-footer a:hover { text-decoration: underline; }

/* Aggregated attachments block at the top of a lesson plan */
.lp-attach-top { margin: 12px 0 4px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-secondary); }
.lp-attach-top h2 { margin: 0 0 8px; font-size: 0.95rem; }
.lp-attach-top .lp-attach { margin: 0; }

/* Reviewed badge (green) — companion to .badge-review (needs review, red) */
.badge-reviewed { background: rgba(16,185,129,0.12); color: var(--success, #059669); border: 1px solid rgba(16,185,129,0.28); }

/* Global "working…" indicator — non-blocking transparent overlay + spinner */
.mtp-busy { position: fixed; inset: 0; z-index: 100000; display: flex; align-items: center; justify-content: center;
  pointer-events: auto; cursor: progress; background: rgba(15, 23, 42, 0.30);
  -webkit-backdrop-filter: blur(1.5px); backdrop-filter: blur(1.5px);
  opacity: 0; transition: opacity .15s ease; }
.mtp-busy.on { opacity: 1; }
.mtp-busy.quiet { background: transparent; pointer-events: none; cursor: default;
  -webkit-backdrop-filter: none; backdrop-filter: none;
  align-items: flex-end; justify-content: flex-end;
  padding: 0 20px calc(20px + env(safe-area-inset-bottom, 0px) + var(--mtp-sync-offset, 0px)) 0; }
.mtp-busy.quiet .mtp-busy-box { font-size: 0.8rem; padding: 8px 14px; opacity: 0.96; }

/* Background-sync failures. They persist until dismissed: the teacher was not
   made to wait for these writes, so they may be looking anywhere when one
   fails — and a failure means the local change was REVERTED. */
#mtpSyncHost { position: fixed; right: 20px; bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  z-index: 100001; display: flex; flex-direction: column; gap: 8px; align-items: flex-end; max-width: min(380px, 92vw); }
.mtp-sync-alert { display: flex; align-items: flex-start; gap: 8px; padding: 10px 12px;
  background: var(--danger); color: #fff; border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
  font-size: 0.84rem; font-weight: 600; line-height: 1.35; }
.mtp-sync-alert .mtp-sync-text { flex: 1; min-width: 0; }
.mtp-sync-count { flex: none; background: rgba(255,255,255,0.25); border-radius: 999px; padding: 1px 7px; font-size: 0.74rem; }
.mtp-sync-x { flex: none; background: none; border: 0; color: #fff; cursor: pointer; font-size: 0.8rem;
  line-height: 1; padding: 2px 4px; border-radius: 5px; opacity: 0.85; }
.mtp-sync-x:hover { opacity: 1; background: rgba(255,255,255,0.18); }
.mtp-sync-x:focus-visible { outline: none; box-shadow: 0 0 0 2px #fff; }
@media (max-width: 600px) { #mtpSyncHost { right: 12px; left: 12px; max-width: none; } }
.mtp-busy-box { display: inline-flex; align-items: center; gap: 10px; padding: 11px 18px; border-radius: 999px;
  background: var(--bg-card, #fff); color: var(--text, #0F172A); font-size: 0.88rem; font-weight: 700;
  border: 1px solid var(--border); box-shadow: 0 10px 34px rgba(15,23,42,0.22); }
.mtp-busy-spin { width: 18px; height: 18px; border-radius: 50%; flex: none;
  border: 2.5px solid var(--border-strong, rgba(15,23,42,0.16)); border-top-color: var(--brand-blue, #2563EB);
  animation: mtp-busy-rot .7s linear infinite; }
@keyframes mtp-busy-rot { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .mtp-busy-spin { animation-duration: 1.4s; } }

/* Side-by-side lesson comparison. Each pane is a FULL, editable lesson viewer
   instance, so both keep their own header, tools and controls. */
.lp-split-modal { width: min(1700px, 97vw); max-width: min(1700px, 97vw); max-height: 94vh;
  display: flex; flex-direction: column; padding: 0; }
.lp-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0; min-height: 0; flex: 1; }
.lp-split-pane { min-width: 0; min-height: 0; display: flex; flex-direction: column; overflow: hidden; }
.lp-split-b { border-left: 1px solid var(--border); }
/* Growing into a split, and shrinking back out of one, are animated so the
   window changes size in place instead of snapping between two modals.
   `lp-split-single` is the shell at NORMAL lesson-modal size (matching the
   inline max-width:960px/width:96vw a lone lesson gets). It is used twice: as
   the starting frame when opening, and as the resting state after one pane is
   closed. Width only -- transitioning the grid columns too makes the surviving
   pane animate a second time, which reads as a stutter. */
.lp-split-modal { transition: width .28s ease, max-width .28s ease; }
.lp-split-modal.lp-split-single { width: min(960px, 96vw); max-width: min(960px, 96vw); }
.lp-split-modal.lp-split-single .lp-split { grid-template-columns: minmax(0, 1fr); }
.lp-split-modal.lp-split-single .lp-split-b { border-left: 0; }
/* The bare `hidden` attribute loses to .lp-split-pane's own display:flex. */
.lp-split-pane[hidden] { display: none; }
@media (prefers-reduced-motion: reduce) { .lp-split-modal { transition: none; } }
/* A pane hosts a viewer with no backdrop of its own: it fills the pane and
   drops the free-floating modal chrome. */
.lp-pane-root { display: flex; flex-direction: column; min-height: 0; flex: 1; }
/* `width` and `max-height` MUST carry !important: the element also gets an inline
   style, and an inline declaration beats any normal stylesheet rule. Without it the
   inline `width:96vw` won and sized the modal to the VIEWPORT -- ~2x its own pane --
   so both panes were clipped on the right at every width. `max-width:none` alone
   made that worse by lifting the 960px cap. app.js no longer emits viewport units
   in pane mode; this is the belt-and-braces so it cannot come back. */
.lp-pane-root .modal { max-width: none !important; width: auto !important;
  max-height: none !important;
  box-shadow: none; border-radius: 0; flex: 1; min-height: 0; }

/* Actions that operate on the LESSON sit under the title; ◀ ▶ ✕ (which are
   about the window) stay on the title row. In a half-width pane the old single
   row squeezed the title down to an ellipsis. */
.lp-toolbar { display: flex; align-items: center; gap: 4px; flex-wrap: wrap;
  padding: 10px 22px 0; }
.lp-pane-root .lp-toolbar { padding: 8px 16px 0; }

/* Nothing inside a lesson may force its pane wider than the window: a pane is
   overflow:hidden, so an over-wide table would be CLIPPED, not scrolled. */
.lesson-print img { max-width: 100%; height: auto; }
.lesson-print pre { white-space: pre-wrap; overflow-wrap: anywhere; }
.lesson-print .lp-sec { overflow-wrap: anywhere; }
.lesson-print table { max-width: 100%; }
/* The pane's scroller takes any horizontal overflow. Without this the pane's
   own overflow:hidden CLIPS whatever is too wide — silently, with no scrollbar
   to hint at it. Per-section scrolling below is the nicer case; this is the
   backstop for everything else (flow lists, bare tables, wide images). */
.lp-pane-root .modal-body { overflow-x: auto; }
.lp-split-pane .lp-sec, .lp-split-pane .lp-attach-top { overflow-x: auto; }
.lp-pane-root .modal-head { padding: 14px 16px 0; }
.lp-pane-root .modal-head h2 { font-size: 1.05rem; }
.lp-pane-root .modal-body { padding: 12px 16px; }

/* ◫ is offered on iPads and larger only — two lesson plans cannot be compared
   in a phone-width column, and the picker would be a dead end there. */
.lp-split-btn { display: none; }
@media (min-width: 768px) { .lp-split-btn { display: inline-flex; } }
/* Inside a split, ◫ only means something when one half is FREE: while both
   lessons are up there is nowhere to put a third. It comes back when the shell
   collapses to a single lesson, so closing one lesson is not a dead end.
   The show rule stays inside the 768px query -- at phone width ◫ must remain
   hidden even when collapsed, or the picker becomes the dead end above. */
.lp-split-pane .lp-split-btn { display: none; }
@media (min-width: 768px) {
  .lp-split-modal.lp-split-single .lp-split-btn { display: inline-flex; }
}
/* If a split is already open and the window narrows, stack rather than crush. */
@media (max-width: 767px) {
  .lp-split { grid-template-columns: 1fr; }
  .lp-split-b { border-left: 0; border-top: 1px solid var(--border); }
}

/* Lesson Flow (at-a-glance walkthrough at the top of a lesson) */
.lp-flow { margin: 12px 0 4px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-secondary); }
.lp-flow h2 { margin: 0 0 8px; font-size: 0.95rem; }
.lp-flow ol { margin: 0; padding-left: 20px; }
.lp-flow li { margin: 3px 0; line-height: 1.45; }
.lp-flow-step[data-flow-key] { cursor: pointer; color: var(--brand-blue, #2563EB); }
.lp-flow-step[data-flow-key]:hover { text-decoration: underline; }
.lp-flow-step[data-flow-key]:focus-visible { outline: 2px solid var(--brand-blue, #2563EB); outline-offset: 2px; border-radius: 4px; }
.lp-sec-flash { animation: lp-sec-flash 1.3s ease; }
@keyframes lp-sec-flash { 0%, 100% { background: transparent; } 25% { background: rgba(37,99,235,0.12); } }

/* Floating "back to top" button inside long lesson viewer/editor modals */
.mtp-scrolltop { position: absolute; right: 16px; bottom: 74px; z-index: 5; width: 40px; height: 40px;
  border-radius: 50%; border: 1px solid var(--border); background: var(--bg-card, #fff); color: var(--text);
  font-size: 1.15rem; line-height: 1; cursor: pointer; box-shadow: 0 6px 20px rgba(15,23,42,0.22);
  opacity: 0; transform: translateY(6px); pointer-events: none; transition: opacity .15s ease, transform .15s ease; }
.mtp-scrolltop.on { opacity: 0.95; transform: translateY(0); pointer-events: auto; }
.mtp-scrolltop:hover { opacity: 1; }

/* Multi-day tag in the Today agenda */
.tl-day { display: inline-block; font-size: 0.66rem; font-weight: 800; color: var(--brand-blue, #2563EB);
  background: rgba(37,99,235,0.12); border-radius: 6px; padding: 0 5px; margin-left: 4px; vertical-align: middle; }

/* Minimizable Unscheduled calendar panel */
.cal-side-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.cal-side-toggle { flex: none; width: 30px; height: 30px; font-size: 0.9rem; line-height: 1; }
/* Minimized (slid-off) state: the Unscheduled panel is hidden and the calendar
   goes full-width; a fixed tab on the right edge reopens it. */
.cal-layout.side-collapsed { grid-template-columns: 1fr; }
.cal-layout.side-collapsed .cal-side { display: none; }
.cal-reopen { display: none; }
.cal-layout.side-collapsed .cal-reopen { display: inline-flex; align-items: center; position: fixed; right: 0; top: 42%;
  z-index: 30; padding: 9px 12px; border: none; border-radius: 10px 0 0 10px; cursor: pointer;
  background: var(--brand-blue, #2563EB); color: #fff; font-weight: 700; font-size: 0.8rem;
  box-shadow: -4px 4px 18px rgba(15,23,42,0.25); }
.cal-reopen:hover { filter: brightness(1.06); }

/* ===== Tasks ===== */
.dash-top { display: grid; grid-template-columns: 1fr 340px; gap: 16px; align-items: start; margin-bottom: 22px; }
@media (max-width: 900px) { .dash-top { grid-template-columns: 1fr; } }
.dash-tasks .card, .dash-today .card { height: 100%; }

.task-tabs { display: flex; gap: 6px; margin-bottom: 10px; border-bottom: 1px solid var(--border); }
.task-tab { background: none; border: none; padding: 8px 12px; font-weight: 700; font-size: 0.86rem; color: var(--text-dim);
  cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.task-tab.active { color: var(--text); border-bottom-color: var(--brand-blue, #2563EB); }
.task-tab-n { font-size: 0.72rem; background: var(--bg-secondary); border-radius: 999px; padding: 0 6px; margin-left: 2px; }

.task-list { display: flex; flex-direction: column; }
.task-row { display: flex; align-items: flex-start; gap: 10px; padding: 9px 4px; border-bottom: 1px solid var(--border); }
.task-row:last-child { border-bottom: none; }
.task-check { flex: none; width: 22px; height: 22px; margin-top: 1px; border-radius: 6px; border: 2px solid var(--border-strong, rgba(15,23,42,0.2));
  background: var(--bg-input, #fff); color: #fff; font-size: 0.8rem; line-height: 1; cursor: pointer; }
.task-check.on { background: var(--success, #10B981); border-color: var(--success, #10B981); }
.task-main { flex: 1; min-width: 0; cursor: pointer; }
.task-title { font-weight: 600; line-height: 1.35; }
.task-meta { font-size: 0.75rem; color: var(--text-dim); margin-top: 2px; display: flex; flex-wrap: wrap; gap: 2px 4px; }
.task-overdue { color: var(--danger, #DC2626); font-weight: 700; }
.task-ai { color: var(--brand-violet, #7C3AED); font-weight: 700; }
.task-row.done .task-title { text-decoration: line-through; color: var(--text-dim); }
.task-row.done { opacity: 0.75; }
.task-list--mini .task-row { padding: 7px 2px; }

/* Floating Tasks button — above modals, a little below the top-right corner */
#mtpTaskFloat { position: fixed; top: calc(var(--topbar-height) + 26px); right: 14px; z-index: 250;
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--border); cursor: pointer;
  background: var(--brand-blue, #2563EB); color: #fff; font-size: 1.15rem; line-height: 1;
  box-shadow: 0 8px 24px rgba(15,23,42,0.28); display: inline-flex; align-items: center; justify-content: center; }
#mtpTaskFloat:hover { filter: brightness(1.06); }
.mtp-taskfloat-badge { position: absolute; top: -4px; right: -4px; min-width: 18px; height: 18px; padding: 0 4px;
  border-radius: 999px; background: var(--text-dim, #94A3B8); color: #fff; font-size: 0.66rem; font-weight: 800;
  display: inline-flex; align-items: center; justify-content: center; }
.mtp-taskfloat-badge.due { background: var(--danger, #DC2626); }

/* Add-to-task button on Lesson Flow steps */
.lp-flow-task { border: none; background: none; cursor: pointer; color: var(--brand-blue, #2563EB);
  font-size: 0.8rem; margin-left: 6px; opacity: 0.6; padding: 0 3px; }
.lp-flow-step:hover .lp-flow-task, .lp-asg-item:hover .lp-flow-task { opacity: 1; }

/* Skip toggle (☑/☐) on flow steps + assignments; dimmed/struck when skipped */
.lp-toggle { border: none; background: none; cursor: pointer; font-size: 0.95rem; padding: 0 5px 0 0;
  line-height: 1; color: var(--brand-blue, #2563EB); vertical-align: baseline; }
.lp-toggle:hover { opacity: 0.75; }
.lp-off { opacity: 0.5; }
.lp-off .lp-asg-title, .lp-off > strong, .lp-off { text-decoration: line-through; }
.lp-off .lp-toggle, .lp-off .lp-asg-link, .lp-off .lp-flow-task { text-decoration: none; }

/* Assignment Flow — student work, grouped In class / Homework */
.lp-asg { margin: 12px 0 4px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-secondary); }
.lp-asg h2 { margin: 0 0 8px; font-size: 0.95rem; }
.lp-asg-group { margin: 6px 0 0; }
.lp-asg-group h3 { margin: 6px 0 4px; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-secondary, #64748B); }
.lp-asg-group ul { margin: 0; padding-left: 4px; list-style: none; }
.lp-asg-item { display: flex; align-items: center; gap: 2px; margin: 3px 0; line-height: 1.4; }
.lp-asg-title { flex: 0 1 auto; min-width: 0; overflow-wrap: anywhere; }
.lp-asg-link { border: none; background: none; cursor: pointer; color: var(--brand-blue, #2563EB);
  font-size: 0.85rem; margin-left: 4px; padding: 0 3px; opacity: 0.7; }
.lp-asg-link:hover { opacity: 1; }

/* Flow/Assignment editing: refresh, drag handle, per-item notes, allow both
   flow steps and assignment items to carry a stacked note block. */
.lp-flow li, .lp-asg-item { flex-wrap: wrap; }
.lp-flow-text { flex: 1 1 auto; min-width: 0; overflow-wrap: anywhere; }
.lp-refresh { border: none; background: none; cursor: pointer; font-size: 0.9rem; margin-left: 8px; padding: 0 3px;
  opacity: 0.7; vertical-align: middle; }
.lp-refresh:hover { opacity: 1; }
.lp-drag { cursor: grab; color: var(--text-dim, #94A3B8); font-size: 0.9rem; padding: 0 4px 0 0; flex: 0 0 auto;
  user-select: none; }
.lp-drag:active { cursor: grabbing; }
.lp-note-btn { border: none; background: none; cursor: pointer; font-size: 0.8rem; margin-left: 6px; padding: 0 3px;
  opacity: 0.55; flex: 0 0 auto; }
.lp-flow-step:hover .lp-note-btn, .lp-asg-item:hover .lp-note-btn { opacity: 1; }
.lp-note { flex: 1 0 100%; margin: 2px 0 2px 22px; padding: 4px 8px; font-size: 0.8rem; line-height: 1.4;
  color: var(--text-secondary, #475569); background: var(--bg-secondary); border-left: 3px solid var(--brand-amber, #E2A03F);
  border-radius: 0 6px 6px 0; white-space: pre-wrap; }
.lp-note::before { content: "📝 "; }
.lp-note { cursor: pointer; }
.lp-note:hover { filter: brightness(0.98); }
.lp-asg-empty { list-style: none; color: var(--text-dim, #94A3B8); font-size: 0.78rem; font-style: italic; padding: 4px 0; }
/* Inline note editor (Save / Delete / Cancel) */
.lp-note-edit { flex: 1 0 100%; margin: 4px 0 4px 22px; }
.lp-note-edit .textarea { width: 100%; box-sizing: border-box; font-size: 0.85rem; }
.lp-note-edit-btns { display: flex; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.lp-note-del { color: var(--brand-red, #DC2626); }
/* "?" help pip next to a section header */
.lp-help { border: 1px solid var(--border); background: none; color: var(--text-secondary, #64748B); border-radius: 50%;
  width: 18px; height: 18px; min-width: 18px; font-size: 0.7rem; font-weight: 700; cursor: pointer; margin-left: 7px;
  line-height: 1; padding: 0; display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.lp-help:hover { background: var(--bg-secondary); color: var(--text, #0F172A); }
/* Disabled prev/next nav buttons */
.modal-head .icon-btn:disabled { opacity: 0.3; cursor: default; }
.dnd-dragging { opacity: 0.5; }

/* Student Summary section in the lesson viewer */
.lp-ss { margin: 12px 0 4px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px;
  background: color-mix(in srgb, var(--brand-blue, #2563EB) 6%, var(--bg-secondary)); }
.lp-ss h2 { margin: 0 0 8px; font-size: 0.95rem; display: flex; align-items: center; flex-wrap: wrap; }
.lp-ss-tools { margin-left: auto; display: inline-flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.lp-ss-edited { font-size: 0.7rem; color: var(--brand-amber, #B45309); font-weight: 600; margin-right: 4px; }
/* Student Summary tabs: the full blurb and its ⚡ extra-terse twin. Same shape as
   the print dialog's .pc-tab, scoped here so the panel keeps its own rhythm. */
.lp-ss-tabs { display: flex; flex-wrap: wrap; gap: 4px; margin: 8px 0 10px; border-bottom: 1px solid var(--border); }
.lp-ss-tab { appearance: none; background: none; border: 0; border-bottom: 2px solid transparent;
    padding: 5px 10px; margin-bottom: -1px; font-size: 0.8rem; font-weight: 600;
    color: var(--text-muted); cursor: pointer; border-radius: 6px 6px 0 0; }
.lp-ss-tab:hover { color: var(--text); background: var(--surface-2); }
.lp-ss-tab.is-on { color: var(--brand-blue, #2563EB); border-bottom-color: var(--brand-blue, #2563EB); }
.ss-terse-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 0 0 12px; }
.ss-terse-actions .page-sub { margin: 0; }
.lp-ss-body { font-size: 0.9rem; line-height: 1.5; }
.lp-ss-body p { margin: 0.3em 0; } .lp-ss-body ul, .lp-ss-body ol { margin: 0.3em 0 0.3em 1.1em; padding: 0; }
.lp-ss-auto { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; margin-top: 10px; font-size: 0.78rem;
  color: var(--text-secondary, #64748B); cursor: pointer; }

/* In-place prev/next lesson navigation — slide the new lesson body in from the
   side we're heading toward (next = from right, previous = from left). */
@keyframes lp-slide-in-next { from { transform: translateX(26px); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes lp-slide-in-prev { from { transform: translateX(-26px); opacity: 0; } to { transform: none; opacity: 1; } }
[data-lp-body].lp-slide-next { animation: lp-slide-in-next 0.22s ease-out; }
[data-lp-body].lp-slide-prev { animation: lp-slide-in-prev 0.22s ease-out; }
@media (prefers-reduced-motion: reduce) {
  [data-lp-body].lp-slide-next, [data-lp-body].lp-slide-prev { animation: none; }
}

/* Task links, groups, linked-lesson chip, reminder */
.task-link { background: none; border: none; padding: 0; cursor: pointer; color: var(--brand-blue, #2563EB);
  font: inherit; font-size: inherit; text-align: left; }
.task-link:hover { text-decoration: underline; }
.task-rem { color: var(--brand-violet, #7C3AED); }
.task-group { border-bottom: 1px solid var(--border); padding: 6px 0 4px; }
.task-group:last-child { border-bottom: none; }
.task-group-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-weight: 700; font-size: 0.86rem; margin-bottom: 2px; }
.task-group-due { font-size: 0.74rem; color: var(--text-dim); font-weight: 600; }
.task-group-items { padding-left: 14px; border-left: 2px solid var(--border); margin-left: 4px; }
.task-group-items .task-row { border-bottom: none; padding: 5px 2px; }
.task-linked { display: flex; align-items: center; gap: 8px; padding: 6px 10px; border: 1px solid var(--border);
  border-radius: 8px; background: var(--bg-secondary); font-size: 0.9rem; }
.task-linked span { flex: 1; }

/* ---- "Push a unit" planner — the unit's lessons beside the class calendar ---- */
.pu-modal { max-width: 1180px; max-height: 92vh; height: min(880px, 92vh);
    display: flex; flex-direction: column; overflow: hidden; }
.pu-unitbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
    padding: 12px 22px 12px; border-bottom: 1px solid var(--border); }
.pu-unitbar .select { flex: 1 1 240px; min-width: 180px; max-width: 460px; }
.pu-unitlabel { font-weight: 700; font-size: 0.86rem; flex: none; }
.pu-counts { font-size: 0.76rem; }
.pu-body { flex: 1; min-height: 0; display: grid; grid-template-columns: 320px 1fr; }
.pu-left { display: flex; flex-direction: column; min-height: 0; gap: 8px;
    padding: 12px 14px; border-right: 1px solid var(--border); }
.pu-right { display: flex; flex-direction: column; min-height: 0; gap: 8px; padding: 12px 16px; }
.pu-pane-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.pu-pane-head h3 { margin: 0; font-size: 0.95rem; display: flex; align-items: center; gap: 6px; }
.pu-pane-head .cal-month-label { font-size: 0.95rem; }
.pu-pane-head .cal-nav .btn-sm { padding: 3px 10px; }
.pu-selrow { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.pu-selrow .btn-sm { padding: 3px 9px; font-size: 0.74rem; }
.pu-selcount { font-size: 0.74rem; margin-left: auto; }
.pu-list { flex: 1; min-height: 0; overflow-y: auto; display: flex; flex-direction: column;
    gap: 6px; padding: 3px; border-radius: var(--radius); }
.pu-list.drop-hover { outline: 2px dashed var(--brand-blue); outline-offset: -1px; background: var(--surface-2); }
.pu-item { display: flex; align-items: center; gap: 8px; padding: 7px 8px; cursor: grab;
    border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-card); }
.pu-item:active { cursor: grabbing; }
.pu-item.dragging { opacity: 0.45; }
.pu-item.locked { cursor: default; opacity: 0.72; }
/* The lesson the planner was opened ON, from a unit row's 📅 button. Marked in
   BOTH panes so "where is this scheduled?" is answerable at a glance. It is
   persistent state, not a flash: the planner redraws after every drag, and a
   one-shot animation would be gone the first time the teacher moved anything. */
.pu-item.pu-focus { outline: 2px solid var(--brand-blue); outline-offset: -2px;
    background: color-mix(in srgb, var(--brand-blue) 12%, var(--bg-card)); }
.pu-check { flex: none; width: 16px; height: 16px; accent-color: var(--brand-blue); }
.pu-num { flex: none; width: 22px; height: 22px; border-radius: 50%; color: #fff;
    font-size: 0.7rem; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.pu-item-main { flex: 1; min-width: 0; }
.pu-item-title { font-size: 0.82rem; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pu-item-meta { font-size: 0.72rem; color: var(--text-dim); }
.pu-item-meta.on { color: var(--text-muted); font-weight: 600; }
.pu-off { flex: none; width: 24px; height: 24px; font-size: 0.72rem; }
.pu-dropnote { font-size: 0.72rem; margin: 0; text-align: center; }
.pu-legend { display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
    font-size: 0.72rem; color: var(--text-dim); }
.pu-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px;
    margin-right: 4px; vertical-align: -1px; }
.pu-calwrap { flex: 1; min-height: 0; overflow: auto; }
.pu-cal .cal-cell { min-height: 82px; padding: 4px; gap: 3px; }
.pu-cal .cal-cell[data-date] { cursor: pointer; }
.pu-cal .cal-chip { font-size: 0.68rem; padding: 2px 5px; opacity: 0.5; }
.pu-cal .cal-chip.mine { opacity: 1; box-shadow: inset 3px 0 0 rgba(255, 255, 255, 0.85), var(--shadow-sm); }
.pu-cal .cal-chip.pu-focus { opacity: 1; outline: 2px solid var(--text); outline-offset: 2px;
    box-shadow: inset 3px 0 0 rgba(255, 255, 255, 0.85), 0 0 0 4px color-mix(in srgb, var(--brand-blue) 30%, transparent); }
.pu-cal .cal-cell.pu-startday { outline: 2px solid var(--brand-blue); outline-offset: -2px; }
.pu-startflag { font-size: 0.62rem; font-weight: 800; color: var(--brand-blue); }
.pu-foot { justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap;
    padding: 12px 22px; border-top: 1px solid var(--border); }
.pu-startbox { display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
    font-size: 0.84rem; font-weight: 600; }
.pu-startbox .input { width: auto; padding: 6px 9px; }
.pu-footbtns { display: flex; gap: 8px; align-items: center; }
/* Tablet / phone: stack the two panes and let the whole body scroll. */
@media (max-width: 900px) {
    .pu-modal { height: min(880px, 92vh); }
    .pu-body { grid-template-columns: 1fr; overflow-y: auto; }
    .pu-left { border-right: 0; border-bottom: 1px solid var(--border); }
    .pu-list { max-height: 38vh; }
    .pu-calwrap { overflow-x: auto; }
    .pu-foot { padding: 12px 16px; }
}

/* ---- Bump / move-lessons dialog ---- */
.bump-opt { display: flex; gap: 9px; align-items: flex-start; font-weight: 400;
    margin-bottom: 7px; line-height: 1.4; cursor: pointer; }
.bump-opt input { flex: none; margin-top: 3px; accent-color: var(--brand-blue); }
.bump-preview { margin-top: 4px; padding: 10px 12px; border-radius: var(--radius);
    background: var(--surface-2); border: 1px solid var(--border); }
.bump-preview p { margin: 0 0 4px; }
.bump-preview p:last-child { margin-bottom: 0; }
.bump-line { font-size: 0.88rem; }
.bump-warn { font-size: 0.8rem; font-weight: 600; color: var(--warning); }

/* ---- Published board snapshot, shown at the foot of the lesson plan ---- */
.lp-snap { border-top: 2px solid var(--border); }
.lp-snap-meta { font-size: 0.8rem; margin: 0 0 8px; }
.lp-snap-live { color: var(--ok, #16a34a); font-weight: 700; }
.lp-snap-off { color: var(--text-muted); font-weight: 600; }
.lp-snap-img { display: block; max-width: min(560px, 100%); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden; background: var(--surface-2); }
.lp-snap-img img { display: block; width: 100%; height: auto; }
.lp-snap-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
@media print { .lp-snap { display: none; } }

/* Extra-terse student summary: one "Label: topic" line per section. Each line is
   its own <p>, so the normal paragraph spacing turns the block into a sparse
   column — tighten it so it reads as the at-a-glance list it is. Print-only: the
   block is built for #mtpPrintRoot and never appears on screen. */
@media print {
  #mtpPrintRoot .lp-sec.mtp-terse-sec .lp-sec-body p { margin: 0; }
  #mtpPrintRoot .lp-sec.mtp-terse-sec .lp-sec-body ul { margin: 0 0 4px; padding-left: 1.1em; }
  #mtpPrintRoot .lp-sec.mtp-terse-sec .lp-sec-body li { margin: 0; }
  #mtpPrintRoot .lp-sec.mtp-terse-sec .lp-sec-body ul:last-child { margin-bottom: 0; }
}