/* ─── RESET ─────────────────────────────────────── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    /* ─── THEME TOKENS ──────────────────────────────── */
    :root {
      --brand:        #4a7eb4;
      --brand-2:      #3d6d9e;
      --brand-3:      #2d5a88;
      --brand-glow:   rgba(74,126,180,0.12);
      --accent:       #d4a020;
      --cyan:         #06b6d4;
      --green:        #10b981;
      --red:          #ef4444;

      --bg:           #faf8f4;
      --bg-alt:       #f0ede7;
      --bg-card:      #faf8f4;
      --text:         #2c2a26;
      --text-2:       #7a7268;
      --text-3:       #b0a99e;
      --border:       #d5d0c7;
      --nav-bg:       rgba(250,248,244,0.88);
    }
    [data-theme="dark"] {
      --brand:        #6b9fd4;
      --brand-2:      #5a8ec3;
      --brand-glow:   rgba(107,159,212,0.14);
      --bg:           #0f0f0f;
      --bg-alt:       #1a1a1a;
      --bg-card:      #1a1a1a;
      --text:         #f0ede8;
      --text-2:       #888888;
      --text-3:       #555555;
      --border:       #2a2a2a;
      --nav-bg:       rgba(15,15,15,0.9);
    }

    /* ─── BASE ──────────────────────────────────────── */
    html { scroll-behavior: smooth; }
    body {
      font-family: 'Google Sans Text', 'Google Sans', 'Helvetica Neue', Arial, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      transition: background 0.3s, color 0.3s;
      overflow-x: hidden;
    }
    a { color: inherit; }

    /* ─── NAV ───────────────────────────────────────── */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 200;
      background: var(--nav-bg);
      backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      transition: background 0.3s, border-color 0.3s;
    }
    .nav-inner {
      max-width: 1160px; margin: 0 auto; padding: 0 2.5rem;
      height: 68px; display: flex; align-items: center; justify-content: space-between;
    }
    .nav-logo {
      display: flex; align-items: center; gap: 10px;
      font-weight: 800; font-size: 1.05rem; color: var(--text);
      text-decoration: none; letter-spacing: -0.01em;
    }
    .logo-mark {
      width: 34px; height: 34px; border-radius: 9px;
      background: var(--brand); display: flex; align-items: center; justify-content: center;
      box-shadow: 0 2px 12px rgba(74,126,180,0.4);
      flex-shrink: 0;
    }
    .logo-mark svg { width: 22px; height: 22px; }
    .nav-links { display: flex; align-items: center; gap: 2.25rem; list-style: none; }
    .nav-links a {
      color: var(--text-2); text-decoration: none;
      font-size: 0.875rem; font-weight: 400; transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--text); }
    .nav-links a { white-space: nowrap; }
    @media (max-width: 1100px) { .nav-links { gap: 1.5rem; } .nav-links .nav-opt { display: none; } }
    @media (max-width: 900px) { .nav-links { display: none; } }
    .nav-actions { display: flex; align-items: center; gap: 0.75rem; }
    .btn-theme {
      background: none; border: none; border-radius: 8px;
      width: 32px; height: 32px; cursor: pointer; display: flex;
      align-items: center; justify-content: center; color: var(--text-3);
      transition: color 0.2s;
    }
    .btn-theme:hover { color: var(--text); }
    .btn-nav-cta {
      background: var(--brand); color: white; border: none;
      padding: 0.5rem 1.2rem; border-radius: 8px;
      font-size: 0.875rem; font-weight: 600; cursor: pointer;
      text-decoration: none; transition: background 0.2s, transform 0.15s;
      display: inline-flex; align-items: center; gap: 0.3rem;
    }
    .btn-nav-cta:hover { background: var(--brand-2); transform: translateY(-1px); }
    .btn-nav-login {
      font-size: 0.85rem; font-weight: 500; color: var(--text-2);
      text-decoration: none; padding: 0.4rem 0.5rem;
      transition: color 0.15s; white-space: nowrap;
    }
    .btn-nav-login:hover { color: var(--text); }

    /* ─── HERO ──────────────────────────────────────── */
    .hero {
      /* top padding clears the 68px fixed nav before adding real breathing room */
      padding: calc(68px + 5.5rem) 2rem 7rem; text-align: center;
      background: var(--bg); position: relative; overflow: hidden;
    }
    .hero::before {
      content: ''; position: absolute; top: -300px; left: 50%;
      transform: translateX(-50%); width: 900px; height: 900px;
      background: radial-gradient(circle, var(--brand-glow) 0%, transparent 65%);
      pointer-events: none;
    }
.hero-eyebrow {
      display: inline-flex; align-items: center; gap: 0.4rem;
      background: var(--brand-glow); color: var(--brand);
      font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em;
      text-transform: uppercase; padding: 0.35rem 1rem;
      border-radius: 999px; margin-bottom: 1.75rem;
      border: 1px solid rgba(74,126,180,0.2);
    }
    .hero-byline {
      display: inline-flex; align-items: center; gap: 0.45rem;
      font-size: 0.78rem; font-weight: 400; color: var(--text-3);
      letter-spacing: 0.01em; margin-bottom: 2.25rem;
    }
    .hero-byline svg { flex-shrink: 0; opacity: 0.6; }
    .hero h1 {
      font-size: clamp(2.8rem, 6.5vw, 5rem);
      font-weight: 800; line-height: 1.06;
      letter-spacing: -0.03em; margin-bottom: 2.25rem; color: var(--text);
    }
    .hero h1 em {
      font-style: normal;
      background: linear-gradient(135deg, var(--brand) 0%, #06b6d4 100%);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-differentiator {
      font-size: 1.05rem; font-weight: 600; color: var(--text);
      max-width: 600px; margin: 0 auto 1.25rem;
      letter-spacing: -0.01em; line-height: 1.6;
    }
    .hero-sub {
      font-size: 1rem; color: var(--text-2); max-width: 560px;
      margin: 0 auto 3rem; line-height: 1.85; font-weight: 300;
    }
    .hero-ctas {
      display: flex; gap: 0.875rem; justify-content: center;
      flex-wrap: wrap; margin-bottom: 5.5rem;
    }
    .hero-google-notice {
      display: flex; align-items: center; justify-content: center; gap: 0.5rem;
      font-size: 0.78rem; color: var(--text-3); margin-top: -4.25rem; margin-bottom: 4.5rem;
      letter-spacing: -0.005em;
    }
    .hero-google-notice a { color: var(--text-2); text-decoration: underline; text-underline-offset: 2px; }
    .hero-google-notice a:hover { color: var(--text); }
    .btn-hero-single {
      display: inline-flex; align-items: center; gap: 0.4rem;
      padding: 0.75rem 1.75rem; border-radius: 10px;
      font-size: 0.95rem; font-weight: 500; font-family: inherit;
      color: var(--text-2); text-decoration: none;
      border: 1.5px solid var(--border);
      background: transparent;
      transition: color 0.2s, border-color 0.2s, background 0.2s;
      letter-spacing: -0.01em;
    }
    .btn-hero-single:hover {
      color: var(--text); border-color: var(--text-3);
      background: var(--bg-alt);
    }
    .btn-lg {
      padding: 0.875rem 2rem; font-size: 1rem; font-weight: 700;
      border-radius: 10px; cursor: pointer; text-decoration: none;
      transition: all 0.2s; display: inline-flex; align-items: center; gap: 0.5rem;
      font-family: inherit;
    }
    .btn-lg.primary {
      background: var(--brand); color: white; border: none;
      box-shadow: 0 4px 24px rgba(74,126,180,0.38);
    }
    .btn-lg.primary:hover {
      background: var(--brand-2); transform: translateY(-2px);
      box-shadow: 0 8px 32px rgba(74,126,180,0.48);
    }
    .btn-lg.secondary {
      background: transparent; color: var(--text);
      border: 1.5px solid var(--border);
    }
    .btn-lg.secondary:hover { background: var(--bg-alt); transform: translateY(-2px); }

    /* ── Device mockups ── */
    .hero-devices {
      display: flex; align-items: flex-end; justify-content: center;
      gap: 2rem; max-width: 860px; margin: 0 auto; position: relative;
    }
    .hero-devices::before {
      content: ''; position: absolute;
      bottom: -1px; left: 0; right: 0; height: 120px;
      background: linear-gradient(to top, var(--bg), transparent);
      pointer-events: none; z-index: 2;
    }

    /* Laptop */
    .mockup-laptop { flex: 1; max-width: 580px; position: relative; z-index: 1; }
    .laptop-chrome {
      background: linear-gradient(180deg, #2a2a3a 0%, #1a1a28 100%);
      border-radius: 12px 12px 0 0; padding: 6px 6px 0;
      box-shadow:
        0 0 0 1px rgba(255,255,255,0.08),
        0 24px 64px rgba(0,0,0,0.45),
        inset 0 1px 0 rgba(255,255,255,0.1);
    }
    .laptop-chrome-bar {
      display: flex; align-items: center; gap: 6px; padding: 6px 10px 8px;
    }
    .l-dot { width: 8px; height: 8px; border-radius: 50%; }
    .l-dot.r { background: #ff5f57; } .l-dot.y { background: #febc2e; } .l-dot.g { background: #28c840; }
    .laptop-screen {
      background: #0d0d1f; border-radius: 4px 4px 0 0; overflow: hidden;
      padding: 16px; min-height: 270px;
    }
    .laptop-base {
      background: linear-gradient(180deg, #2a2a3a, #1d1d2d);
      height: 14px; border-radius: 0 0 8px 8px;
    }
    .laptop-foot {
      width: 40%; height: 4px; background: #1a1a28;
      border-radius: 0 0 4px 4px; margin: 0 auto;
    }

    /* Teacher slide */
    .ts { color: white; height: 100%; display: flex; flex-direction: column; }
    .ts-topbar {
      display: flex; justify-content: space-between; align-items: center;
      margin-bottom: 10px;
    }
    .ts-brand { font-size: 9px; font-weight: 700; color: rgba(255,255,255,0.35); letter-spacing: 0.12em; text-transform: uppercase; }
    .ts-meta { display: flex; align-items: center; gap: 8px; }
    .ts-joined {
      background: rgba(34,197,94,0.15); color: #22c55e;
      font-size: 8px; font-weight: 700; padding: 2px 8px;
      border-radius: 20px; border: 1px solid rgba(34,197,94,0.25);
    }
    .ts-slide-n { font-size: 8px; color: rgba(255,255,255,0.25); }
    .ts-q { font-size: 13px; font-weight: 700; margin-bottom: 14px; line-height: 1.35; }
    .ts-results { display: flex; flex-direction: column; gap: 6px; flex: 1; }
    .ts-row { display: flex; align-items: center; gap: 6px; }
    .ts-lbl {
      width: 16px; height: 16px; border-radius: 4px;
      background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.5);
      font-size: 8px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
    }
    .ts-track { flex: 1; height: 22px; background: rgba(255,255,255,0.05); border-radius: 5px; overflow: hidden; }
    .ts-fill {
      height: 100%; border-radius: 5px; display: flex; align-items: center;
      padding: 0 8px; font-size: 8px; font-weight: 700; color: white;
      transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
    }
    .ts-fill.c { background: linear-gradient(90deg, #16a34a, #22c55e); }
    .ts-fill.w { background: rgba(255,255,255,0.1); }
    .ts-fill.p { background: rgba(245,158,11,0.65); }
    .ts-opt { font-size: 7.5px; color: rgba(255,255,255,0.4); flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 90px; }
    .ts-pct { font-size: 8px; color: rgba(255,255,255,0.4); min-width: 24px; text-align: right; }

    /* Phone */
    .mockup-phone { width: 170px; flex-shrink: 0; position: relative; z-index: 1; }
    .phone-chrome {
      background: linear-gradient(180deg, #2a2a3a 0%, #1a1a28 100%);
      border-radius: 36px; padding: 8px;
      box-shadow:
        0 0 0 1px rgba(255,255,255,0.08),
        0 24px 64px rgba(0,0,0,0.45),
        inset 0 1px 0 rgba(255,255,255,0.1);
    }
    .phone-notch-row { display: flex; justify-content: center; padding: 5px 0 6px; }
    .phone-pill { width: 56px; height: 7px; background: #0a0a1a; border-radius: 4px; }
    .phone-screen-wrap {
      background: #fff; border-radius: 28px; overflow: hidden;
      min-height: 290px; padding: 12px 10px 10px;
      display: flex; flex-direction: column;
    }
    .sp-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 9px; }
    .sp-code { font-size: 7px; font-weight: 700; color: #4a7eb4; letter-spacing: 0.15em; }
    .sp-aa {
      background: #4a7eb4; color: white; font-size: 7px; font-weight: 800;
      padding: 2px 6px; border-radius: 5px; cursor: pointer;
    }
    .sp-q { font-size: 9px; font-weight: 700; line-height: 1.45; margin-bottom: 9px; color: #0f172a; }
    .sp-opts { display: flex; flex-direction: column; gap: 4.5px; flex: 1; }
    .sp-opt {
      border: 1.5px solid #e2e8f0; border-radius: 7px;
      padding: 5px 7px; font-size: 7.5px; font-weight: 500; color: #475569;
      display: flex; align-items: center; gap: 5px;
    }
    .sp-opt.sel { border-color: #4a7eb4; background: rgba(74,126,180,0.08); color: #4a7eb4; font-weight: 700; }
    .sp-l {
      width: 14px; height: 14px; border-radius: 4px;
      background: #f1f5f9; font-size: 7px; font-weight: 800;
      display: flex; align-items: center; justify-content: center; flex-shrink: 0;
    }
    .sp-opt.sel .sp-l { background: #4a7eb4; color: white; }
    .sp-submit {
      background: #4a7eb4; color: white; border: none; border-radius: 7px;
      padding: 6px; font-size: 7.5px; font-weight: 700; margin-top: 7px;
      cursor: pointer; width: 100%; font-family: inherit;
    }

    /* ─── TRUST STRIP ───────────────────────────────── */
    .trust {
      padding: 1.5rem 2rem;
      background: var(--bg-alt);
      border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
    }
    .trust-row {
      max-width: 1000px; margin: 0 auto;
      display: flex; align-items: center; justify-content: center;
      gap: 2.5rem; flex-wrap: wrap;
    }
    .trust-item {
      display: flex; align-items: center; gap: 0.5rem;
      font-size: 0.82rem; font-weight: 500; color: var(--text-2);
      white-space: nowrap;
    }
    .trust-item svg { width: 16px; height: 16px; color: var(--brand); flex-shrink: 0; }

    /* ─── SECTION SHELL ─────────────────────────────── */
    section { padding: 8rem 2rem; }
    .container { max-width: 1100px; margin: 0 auto; }

    .section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

    /* ─── SPOTLIGHTS ────────────────────────────────── */
    .spot-inner {
      max-width: 1060px; margin: 0 auto;
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 6rem; align-items: center;
    }
    .spot-inner.rev { direction: rtl; }
    .spot-inner.rev > * { direction: ltr; }
    .spot-copy .eyebrow {
      font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
      letter-spacing: 0.1em; color: var(--brand); margin-bottom: 0.75rem;
    }
    .spot-copy h2 {
      font-size: clamp(1.85rem, 3.2vw, 2.6rem); font-weight: 700;
      line-height: 1.12; letter-spacing: -0.025em;
      margin-bottom: 1.25rem; color: var(--text);
    }
    .spot-copy .authored-note {
      font-size: 1.02rem; font-weight: 500; color: var(--text); line-height: 1.6;
      border-left: 3px solid var(--brand); padding: 0.1rem 0 0.1rem 1rem; margin: -0.5rem 0 1.75rem;
    }
    .spot-copy p { font-size: 1rem; color: var(--text-2); line-height: 1.9; margin-bottom: 1.75rem; font-weight: 300; }
    .check-list { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
    .check-list li {
      display: flex; align-items: flex-start; gap: 0.65rem;
      font-size: 0.9rem; color: var(--text-2); font-weight: 500; line-height: 1.5;
    }
    .check-list li::before {
      content: '';
      width: 18px; height: 18px; border-radius: 50%; flex-shrink: 0; margin-top: 1px;
      background: rgba(34,197,94,0.12) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%2322c55e' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E") no-repeat center / 10px;
      border: 1.5px solid rgba(34,197,94,0.3);
    }

    /* ── Visual cards ── */
    .v-card {
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: 16px; overflow: hidden;
      box-shadow: 0 2px 20px rgba(0,0,0,0.06), 0 0 0 1px var(--border);
      transition: background 0.3s, border-color 0.3s;
    }
    [data-theme="dark"] .v-card { box-shadow: 0 4px 28px rgba(0,0,0,0.35); }
    .v-card-head {
      background: var(--bg-alt); border-bottom: 1px solid var(--border);
      padding: 9px 14px; display: flex; align-items: center; gap: 7px;
      font-size: 0.72rem; font-weight: 600; color: var(--text-3);
    }
    .v-card-head-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); opacity: 0.55; }

    /* Slide grid (spotlight 1) */
    .slide-grid {
      padding: 14px; display: grid;
      grid-template-columns: repeat(3, 1fr); gap: 8px;
    }
    .ms {
      border-radius: 7px; aspect-ratio: 16/9;
      padding: 8px; display: flex; flex-direction: column; justify-content: space-between;
      position: relative; overflow: hidden;
    }
    .ms::after {
      content: ''; position: absolute; inset: 0;
      background: linear-gradient(135deg, rgba(255,255,255,0.06) 0%, transparent 60%);
    }
    .ms-bar { height: 3px; border-radius: 2px; background: rgba(255,255,255,0.28); margin-bottom: 3px; }
    .ms-bar.s { width: 55%; } .ms-bar.m { width: 80%; } .ms-bar.f { width: 100%; }
    .ms-ico { font-size: 11px; text-align: center; opacity: 0.75; }
    .ms.title { background: linear-gradient(135deg,#0f172a,#1e293b); }
    .ms.statement { background: linear-gradient(135deg,#064e3b,#065f46); }
    .ms.mcq { background: linear-gradient(135deg,#1e1b4b,#312e81); outline: 2px solid #4a7eb4; outline-offset: -2px; }
    .ms.hotspot { background: linear-gradient(135deg,#1c3461,#1d4ed8); }
    .ms.matchup { background: linear-gradient(135deg,#3b0764,#7e22ce); }
    .ms.recap { background: linear-gradient(135deg,#1c1917,#44403c); }
    .ms-badge {
      position: absolute; bottom: 4px; right: 4px;
      font-size: 5.5px; font-weight: 700; padding: 1px 4px;
      border-radius: 3px; background: rgba(255,255,255,0.15);
      color: rgba(255,255,255,0.6); text-transform: uppercase; letter-spacing: 0.05em;
      z-index: 1;
    }

    /* Adaptive split (spotlight 2) */
    .adp-split {
      display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 14px;
    }
    .adp-pane { border-radius: 10px; padding: 12px; }
    .adp-pane.std { background: rgba(74,126,180,0.07); border: 1px solid rgba(74,126,180,0.2); }
    .adp-pane.ext { background: rgba(6,182,212,0.07); border: 1px solid rgba(6,182,212,0.2); }
    .adp-tag {
      font-size: 7.5px; font-weight: 800; text-transform: uppercase;
      letter-spacing: 0.1em; margin-bottom: 8px; display: flex; align-items: center; gap: 4px;
    }
    .adp-tag.std { color: #4a7eb4; }
    .adp-tag.ext { color: #06b6d4; }
    .adp-bar { height: 5px; border-radius: 3px; margin-bottom: 4px; }
    .adp-bar.sc { background: rgba(74,126,180,0.2); }
    .adp-bar.ec { background: rgba(6,182,212,0.2); }
    .adp-bar.m { width: 82%; } .adp-bar.s { width: 60%; }
    .adp-opt {
      height: 13px; border-radius: 4px; margin-bottom: 3px;
      border: 1px solid; display: flex; align-items: center;
      padding: 0 5px; font-size: 6px; font-weight: 600;
    }
    .adp-opt.sc { background: rgba(74,126,180,0.1); border-color: rgba(74,126,180,0.2); color: #4a7eb4; }
    .adp-opt.ec { background: rgba(6,182,212,0.1); border-color: rgba(6,182,212,0.2); color: #06b6d4; }
    .adp-extra {
      margin-top: 6px; padding: 5px 6px; background: rgba(6,182,212,0.1);
      border-radius: 4px; font-size: 6.5px; color: #06b6d4; font-weight: 700;
      border: 1px dashed rgba(6,182,212,0.35);
    }

    /* Reading mode split (spotlight – student companion) */
    .rdm-split {
      padding: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
    }
    .rdm-pane { border-radius: 10px; overflow: hidden; }
    .rdm-pane-lbl {
      font-size: 6.5px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em;
      padding: 5px 10px;
    }
    .rdm-pane.board .rdm-pane-lbl { background: #12121a; color: rgba(255,255,255,0.38); }
    .rdm-pane.reader .rdm-pane-lbl { background: #ede9e2; color: #8a7060; }
    .rdm-board-inner { background: #0f1117; padding: 10px 10px 12px; min-height: 145px; }
    .rdm-q { font-size: 7.5px; font-weight: 700; color: #e2e8f0; margin-bottom: 8px; line-height: 1.45; }
    .rdm-opt {
      border-radius: 4px; padding: 3px 6px; margin-bottom: 3px; font-size: 6px;
      background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
      color: rgba(255,255,255,0.5);
    }
    .rdm-read-inner { background: #faf8f4; padding: 10px 10px 12px; min-height: 145px; display: flex; flex-direction: column; }
    .rdm-eyebrow-sm { font-size: 5.5px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.1em; color: #a08060; margin-bottom: 3px; }
    .rdm-heading { font-size: 8px; font-weight: 800; color: #1a1a1a; margin-bottom: 5px; line-height: 1.3; }
    .rdm-para { font-size: 6px; color: #4a4a4a; line-height: 1.65; margin-bottom: 5px; }
    .rdm-scroll-hint { font-size: 6px; color: #b09070; font-weight: 600; font-style: italic; margin-bottom: 6px; }
    .rdm-fontrow { display: flex; gap: 3px; margin-top: auto; }
    .rdm-fbtn {
      background: #e8e3dc; border-radius: 3px; padding: 2px 5px;
      font-size: 5.5px; font-weight: 700; color: #6a5a48;
    }

    /* Accessibility phones (spotlight 3) */
    .acc-row {
      padding: 14px; display: flex; align-items: center;
      justify-content: center; gap: 12px;
    }
    .m-phone {
      background: linear-gradient(180deg,#2a2a3a,#1a1a28);
      border-radius: 24px; padding: 6px; flex: 1; max-width: 130px;
      box-shadow: 0 8px 30px rgba(0,0,0,0.2), 0 0 0 1px rgba(255,255,255,0.08);
    }
    .m-screen {
      border-radius: 19px; padding: 10px 9px;
      min-height: 180px; display: flex; flex-direction: column;
    }
    .m-screen.nrm { background: #fff; }
    .m-screen.dys { background: #fefce8; }
    .m-tag {
      font-size: 6px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
      padding: 2px 6px; border-radius: 3px; margin-bottom: 7px; align-self: flex-start;
    }
    .m-tag.nrm { background: #f1f5f9; color: #64748b; }
    .m-tag.dys { background: #fef3c7; color: #92400e; }
    .m-text { font-size: 7.5px; color: #0f172a; line-height: 1.45; margin-bottom: 6px; }
    .m-text.dys-t { font-family: 'Comic Sans MS', cursive; letter-spacing: 0.05em; line-height: 1.85; word-spacing: 0.12em; font-size: 7px; }
    .m-opt { height: 12px; border-radius: 3px; margin-bottom: 3px; font-size: 5.5px; display: flex; align-items: center; padding: 0 4px; font-weight: 600; }
    .m-opt.nrm { background: #f8fafc; border: 1px solid #e2e8f0; color: #64748b; }
    .m-opt.dys-o { background: #fef3c7; border: 1px solid #fde68a; color: #92400e; font-family: 'Comic Sans MS', cursive; letter-spacing: 0.04em; }
    .m-aa { align-self: flex-end; font-size: 7px; font-weight: 800; padding: 2px 6px; border-radius: 4px; margin-top: auto; cursor: pointer; }
    .m-aa.off { background: #4a7eb4; color: white; }
    .m-aa.on { background: #f59e0b; color: white; }
    .acc-arrow { font-size: 1.4rem; color: var(--brand); flex-shrink: 0; }

    /* ─── LIVE DEMO SPLIT ──────────────────────────────── */
    /* App CSS token sets – scoped so they don't clobber website vars */
    .demo-dark {
      --bg:#0f0f0f; --card:#1a1a1a; --border:#2a2a2a;
      --text:#f0ede8; --muted:#666; --dim:#444;
      --accent:#6b9fd4; --acc-lt:rgba(107,159,212,.12); --acc-bd:rgba(107,159,212,.3);
      --green:#10b981; --gold:#d4a020; --font:'Google Sans Text','Google Sans','Helvetica Neue',Arial,sans-serif;
      --sl-bg:#111; --sl-surface:#1a1a1a; --sl-surface2:#161616;
      --sl-border:#2a2a2a; --sl-border2:#1e1e1e; --sl-border3:#242424;
      --sl-text:#f0ede8; --sl-muted:#666; --sl-dim:#444; --sl-dim2:#555;
      --sl-subtle:#888; --sl-mid:#ccc;
      --sl-acc-bg:rgba(107,159,212,.12); --sl-acc-bd:rgba(107,159,212,.3);
      --sl-gld-bg:rgba(212,160,32,.1);   --sl-gld-bd:rgba(212,160,32,.28);
      --sl-grn-bg:rgba(107,212,159,.10); --sl-grn-bd:rgba(107,212,159,.35);
      font-family:'Google Sans Text','Google Sans','Helvetica Neue',Arial,sans-serif;
    }
    .demo-light {
      --bg:#faf8f4; --card:#f0ede7; --card2:#e8e4dc; --border:#d5d0c7;
      --text:#2c2a26; --muted:#7a7268; --dim:#b0a99e;
      --accent:#3d7ab0; --acc-lt:rgba(61,122,176,.12); --acc-bd:rgba(61,122,176,.3);
      --green:#0c9166; --grn-lt:rgba(12,145,102,.12); --grn-bd:rgba(12,145,102,.3);
      --gold:#a87010;  --gld-lt:rgba(168,112,16,.1);  --gld-bd:rgba(168,112,16,.28);
      --font:'Google Sans Text','Google Sans','Helvetica Neue',Arial,sans-serif;
      font-family:'Google Sans Text','Google Sans','Helvetica Neue',Arial,sans-serif;
    }

    /* Layout */
    .lsd-head { text-align:center; margin-bottom:2.5rem; }
    .lsd-outer { display:grid; grid-template-columns:1fr 340px; gap:20px; align-items:start; }
    @media(max-width:960px){ .lsd-outer { grid-template-columns:1fr; } .lsd-student-panel { display:none; } }
    .lsd-panel-eyebrow { font-size:.68rem; font-weight:700; text-transform:uppercase; letter-spacing:.1em; color:var(--text-3); margin-bottom:.55rem; display:flex; align-items:center; gap:5px; }

    /* Browser chrome shells */
    .lsd-chrome { border-radius:12px; overflow:hidden; border:1px solid rgba(255,255,255,.07); box-shadow:0 12px 48px rgba(0,0,0,.55),0 2px 8px rgba(0,0,0,.3); }
    .lsd-chrome.light-chrome { border-color:rgba(0,0,0,.1); box-shadow:0 4px 24px rgba(0,0,0,.1),0 1px 4px rgba(0,0,0,.08); }

    /* Presenter bar */
    .lsd-pv-bar { display:flex; align-items:center; gap:9px; padding:8px 13px; background:var(--card); border-bottom:1px solid var(--border); flex-shrink:0; }
    .lsd-pv-dot { width:7px; height:7px; border-radius:50%; background:var(--green); flex-shrink:0; animation:pulse 2s infinite; }
    .lsd-pv-code { font-size:.6rem; font-weight:700; letter-spacing:.12em; color:var(--accent); background:var(--acc-lt); border:1px solid var(--acc-bd); border-radius:5px; padding:2px 7px; white-space:nowrap; }
    .lsd-pv-deck { font-size:.68rem; font-weight:500; color:var(--muted); flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
    .lsd-pv-lbl { font-size:.58rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color:var(--dim); white-space:nowrap; }
    .lsd-pv-close { display:flex; align-items:center; gap:3px; padding:3px 9px; border-radius:6px; border:1.5px solid rgba(239,68,68,.3); background:rgba(239,68,68,.08); color:#ef4444; font-size:.56rem; font-weight:700; white-space:nowrap; flex-shrink:0; }

    /* Presenter body */
    .lsd-pv-body { display:flex; background:#0a0a0a; min-height:0; }
    .lsd-stage-col { flex:1; padding:10px 6px 10px 10px; display:flex; flex-direction:column; gap:6px; min-width:0; }
    .lsd-col-lbl { font-size:.54rem; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--dim); }
    .lsd-stage-wrap { position:relative; width:100%; border-radius:7px; overflow:hidden; background:#000; box-shadow:0 2px 14px rgba(0,0,0,.6); flex-shrink:0; }
    .lsd-stage-sizer { padding-top:56.25%; position:relative; }
    .lsd-stage-inner { position:absolute; top:0; left:0; width:1280px; height:720px; transform-origin:top left; font-family:'Google Sans Text','Google Sans','Helvetica Neue',Arial,sans-serif; pointer-events:none; }
    .lsd-stage-inner * { font-family:'Google Sans Text','Google Sans','Helvetica Neue',Arial,sans-serif; box-sizing:border-box; pointer-events:none; }

    /* Notes col */
    .lsd-notes-col { width:170px; flex-shrink:0; background:#0d0d0d; border-left:1px solid #1e1e1e; padding:10px; display:flex; flex-direction:column; gap:7px; }
    .lsd-nc-thumb-wrap { aspect-ratio:16/9; position:relative; overflow:hidden; background:#111; border-radius:5px; border:1px solid #222; }
    .lsd-nc-thumb-inner { position:absolute; top:0; left:0; width:1280px; height:720px; transform-origin:top left; font-family:'Google Sans Text','Google Sans','Helvetica Neue',Arial,sans-serif; pointer-events:none; }
    .lsd-nc-notes { flex:1; background:rgba(217,119,6,.06); border:1px solid rgba(217,119,6,.18); border-radius:7px; padding:7px 9px; font-size:.66rem; line-height:1.6; color:var(--text); font-family:var(--font); }

    /* Presenter nav */
    .lsd-pv-nav { display:flex; align-items:center; justify-content:center; gap:14px; padding:9px 14px; background:var(--card); border-top:1px solid var(--border); }
    .lsd-nav-btn { display:flex; align-items:center; gap:4px; padding:6px 18px; border-radius:100px; border:1.5px solid var(--border); background:none; color:var(--muted); font-size:.7rem; font-weight:700; font-family:var(--font); cursor:pointer; transition:all .15s; }
    .lsd-nav-btn:hover { border-color:var(--muted); color:var(--text); }
    .lsd-nav-btn.primary { border-color:var(--accent); color:var(--accent); background:var(--acc-lt); }
    .lsd-nav-btn.primary:hover { background:rgba(107,159,212,.22); }
    .lsd-counter { font-size:.62rem; font-weight:700; letter-spacing:.05em; text-transform:uppercase; color:var(--dim); min-width:80px; text-align:center; }

    /* Student bar */
    .lsd-st-bar { display:flex; align-items:center; gap:8px; padding:8px 12px; background:var(--card); border-bottom:1px solid var(--border); flex-shrink:0; }
    .lsd-live-ind { display:flex; align-items:center; gap:4px; font-size:.58rem; font-weight:700; color:var(--green); flex-shrink:0; }
    .lsd-live-dot { width:5px; height:5px; border-radius:50%; background:var(--green); animation:pulse 2s infinite; }
    .lsd-subj { font-size:.58rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--accent); flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
    .lsd-vtoggle { display:flex; background:var(--bg); border:1px solid var(--border); border-radius:100px; padding:2px; flex-shrink:0; }
    .lsd-vtab { padding:2px 7px; border-radius:100px; font-size:.56rem; font-weight:700; font-family:var(--font); color:var(--muted); background:none; border:none; }
    .lsd-vtab.on { background:var(--accent); color:#fff; }

    /* Reading scroll */
    .lsd-reading-scroll { flex:1; overflow-y:auto; background:var(--bg); min-height:280px; max-height:380px; }
    .lsd-reading-scroll::-webkit-scrollbar { width:3px; }
    .lsd-reading-scroll::-webkit-scrollbar-thumb { background:var(--border); border-radius:2px; }

    /* Reading-mode styles (exact from app, scoped to .demo-light) */
    .demo-light .rd-wrap { padding:16px 16px 24px; font-size:12.5px; line-height:1.7; color:var(--text); font-family:var(--font); }
    .demo-light .rd-eyebrow { display:block; font-size:.72em; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); margin-bottom:.7em; }
    .demo-light .rd-h1 { font-size:1.75em; font-weight:800; letter-spacing:-.035em; line-height:1.15; color:var(--text); margin-bottom:.45em; }
    .demo-light .rd-h2 { font-size:1.3em;  font-weight:700; letter-spacing:-.02em;  line-height:1.2;  color:var(--text); margin-bottom:.45em; }
    .demo-light .rd-lead { font-size:1.05em; line-height:1.7; color:var(--muted); margin-bottom:.65em; }
    .demo-light .rd-body { font-size:1em; line-height:1.75; color:var(--text); margin-bottom:.65em; }
    .demo-light .rd-muted { font-size:.88em; color:var(--muted); line-height:1.6; }
    .demo-light .rd-nnt-rows { display:flex; flex-direction:column; gap:.45em; margin-top:.65em; }
    .demo-light .rd-nnt-row { display:flex; align-items:flex-start; gap:.6em; padding:.65em .85em; border-radius:7px; font-size:.95em; }
    .demo-light .rd-nnt-row.nnt-now  { background:rgba(12,145,102,.07);  border:1px solid rgba(12,145,102,.28); }
    .demo-light .rd-nnt-row.nnt-next { background:var(--gld-lt);           border:1px solid var(--gld-bd); }
    .demo-light .rd-nnt-row.nnt-then { background:rgba(139,92,246,.06);   border:1px solid rgba(139,92,246,.25); }
    .demo-light .rd-nnt-icon { font-size:.95em; flex-shrink:0; }
    .demo-light .rd-nnt-lbl  { font-size:.62em; font-weight:700; text-transform:uppercase; letter-spacing:.09em; color:var(--muted); margin-bottom:.15em; }
    .demo-light .rd-nnt-body { font-size:.95em; color:var(--text); line-height:1.55; }
    .demo-light .rd-task-callout { border-left:3px solid var(--accent); background:var(--acc-lt); border-radius:0 8px 8px 0; padding:.9em 1.1em; margin:.2em 0; }
    .demo-light .rd-task-badge   { display:inline-block; font-size:.68em; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); margin-bottom:.35em; }
    .demo-light .rd-task-body    { font-size:.95em; line-height:1.7; color:var(--text); }
    .demo-light .rd-ex-table { border:1px solid var(--border); border-radius:8px; overflow:hidden; margin-top:.65em; }
    .demo-light .rd-ex-row { display:flex; align-items:baseline; gap:.6em; padding:.6em .85em; border-bottom:1px solid var(--border); font-size:.9em; }
    .demo-light .rd-ex-row:last-child { border-bottom:none; }
    .demo-light .rd-ex-row.accent { background:var(--acc-lt); }
    .demo-light .rd-ex-row.gold   { background:var(--gld-lt); }
    .demo-light .rd-ex-key { font-size:.68em; font-weight:700; letter-spacing:.09em; text-transform:uppercase; color:var(--muted); min-width:70px; flex-shrink:0; }
    .demo-light .rd-ex-row.accent .rd-ex-key { color:var(--accent); }
    .demo-light .rd-ex-row.gold   .rd-ex-key { color:var(--gold); }
    .demo-light .rd-ex-arr { color:var(--dim); flex-shrink:0; }
    .demo-light .rd-ex-val { line-height:1.5; color:var(--text); }
    .demo-light .rd-rag-block { border-radius:8px; padding:.6em .85em; border:1.5px solid; margin-bottom:.45em; }
    .demo-light .rd-rag-block.green { background:rgba(12,145,102,.08); border-color:rgba(12,145,102,.3); }
    .demo-light .rd-rag-block.amber { background:rgba(168,112,16,.08);  border-color:rgba(168,112,16,.28); }
    .demo-light .rd-rag-block.empty { background:rgba(0,0,0,.03);        border-color:rgba(0,0,0,.12); border-style:dashed; }
    .demo-light .rd-rag-label { font-size:.62em; font-weight:800; text-transform:uppercase; letter-spacing:.1em; margin-bottom:.3em; }
    .demo-light .rd-rag-block.green .rd-rag-label { color:var(--green); }
    .demo-light .rd-rag-block.amber .rd-rag-label { color:var(--gold); }
    .demo-light .rd-rag-block.empty .rd-rag-label { color:var(--muted); }
    .demo-light .rd-rag-q { font-size:.88em; font-weight:600; color:var(--text); margin-bottom:.3em; }
    .demo-light .rd-rag-ans { font-size:.85em; color:var(--text); line-height:1.5; }
    .demo-light .rd-rag-ta { width:100%; padding:7px 9px; border-radius:7px; border:1.5px solid var(--border); background:var(--bg); font-size:.88em; font-family:var(--font); color:var(--text); resize:none; height:46px; }
    .demo-light .rd-mcq-opt { display:flex; align-items:center; gap:9px; padding:10px 13px; border-radius:8px; margin-bottom:.4em; border:1.5px solid; }
    .demo-light .rd-mcq-opt.sel  { background:var(--acc-lt); border-color:var(--acc-bd); }
    .demo-light .rd-mcq-opt.dim  { background:rgba(0,0,0,.03); border-color:rgba(0,0,0,.08); opacity:.55; }
    .demo-light .rd-mcq-ltr { width:28px; height:28px; border-radius:6px; display:flex; align-items:center; justify-content:center; font-size:.8em; font-weight:800; flex-shrink:0; }
    .demo-light .rd-mcq-opt.sel  .rd-mcq-ltr { background:rgba(61,122,176,.25); color:var(--accent); }
    .demo-light .rd-mcq-opt.dim  .rd-mcq-ltr { background:rgba(0,0,0,.06); color:rgba(0,0,0,.3); }
    .demo-light .rd-mcq-txt { font-size:.9em; font-weight:600; color:var(--text); }
    .demo-light .rd-et-ta { width:100%; padding:10px 12px; border-radius:9px; border:2px solid var(--border); background:var(--bg); font-size:.9em; font-family:var(--font); color:var(--text); resize:none; height:78px; margin-top:.5em; }
    .demo-light .rd-et-btn { margin-top:.65em; width:100%; padding:10px; border-radius:9px; background:var(--green); color:#fff; border:none; font-family:var(--font); font-size:.88em; font-weight:700; cursor:pointer; }

    /* App slide CSS scoped to .demo-dark for teacher stage */
    .demo-dark .p-slide { width:1280px; height:720px; position:absolute; top:0; left:0; }
    .demo-dark .p-title { background:var(--sl-bg); display:flex; flex-direction:column; align-items:center; justify-content:center; padding:80px; text-align:center; }
    .demo-dark .p-tag { display:inline-block; font-size:16px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); border:1px solid var(--sl-acc-bd); background:var(--sl-acc-bg); padding:8px 28px; border-radius:100px; margin-bottom:36px; }
    .demo-dark .p-title h2 { font-size:80px; font-weight:700; letter-spacing:-.04em; line-height:1.05; color:var(--sl-text); margin-bottom:28px; }
    .demo-dark .p-sub { font-size:22px; font-weight:400; color:var(--sl-muted); line-height:1.7; max-width:640px; }
    .demo-dark .p-nnt { background:var(--sl-bg); display:flex; align-items:stretch; overflow:hidden; }
    .demo-dark .p-nnt-left { flex:0 0 58%; display:flex; flex-direction:column; justify-content:center; padding:52px 48px; gap:14px; }
    .demo-dark .p-nnt-heading { font-size:16px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--sl-dim2); margin-bottom:4px; }
    .demo-dark .p-nnt-row { display:flex; align-items:flex-start; gap:18px; background:var(--sl-surface); border:1.5px solid var(--sl-border); border-radius:14px; padding:20px 24px; }
    .demo-dark .p-nnt-row.nnt-now  { border-color:rgba(107,159,212,.35); background:rgba(107,159,212,.10); }
    .demo-dark .p-nnt-row.nnt-next { border-color:rgba(107,212,159,.35); background:rgba(107,212,159,.10); }
    .demo-dark .p-nnt-row.nnt-then { border-color:rgba(212,180,107,.35); background:rgba(212,180,107,.10); }
    .demo-dark .p-nnt-icon { font-size:24px; flex-shrink:0; width:36px; text-align:center; padding-top:2px; }
    .demo-dark .p-nnt-text { flex:1; }
    .demo-dark .p-nnt-label { font-size:16px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; margin-bottom:5px; }
    .demo-dark .p-nnt-row.nnt-now  .p-nnt-label { color:var(--accent); }
    .demo-dark .p-nnt-row.nnt-next .p-nnt-label { color:var(--green); }
    .demo-dark .p-nnt-row.nnt-then .p-nnt-label { color:var(--gold); }
    .demo-dark .p-nnt-body { font-size:20px; line-height:1.6; color:var(--sl-text); }
    .demo-dark .p-nnt-right { flex:0 0 42%; background:var(--sl-surface2); border-left:1px solid var(--sl-border2); display:flex; flex-direction:column; justify-content:center; padding:52px 44px; overflow:hidden; }
    .demo-dark .p-nnt-right-body { font-size:18px; line-height:1.75; color:var(--sl-mid); margin-bottom:20px; padding-bottom:20px; border-bottom:1px solid var(--sl-border3); }
    .demo-dark .p-nnt-ex-badge { font-size:16px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--gold); margin-bottom:14px; }
    .demo-dark .p-statement { background:var(--sl-bg); display:flex; flex-direction:column; justify-content:center; padding:80px 120px; }
    .demo-dark .p-s-eyebrow { font-size:16px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); margin-bottom:24px; display:block; }
    .demo-dark .p-s-h2 { font-size:60px; font-weight:700; letter-spacing:-.035em; line-height:1.1; color:var(--sl-text); margin-bottom:32px; }
    .demo-dark .p-s-h2 em { font-style:normal; color:var(--accent); }
    .demo-dark .p-s-body { font-size:20px; font-weight:400; color:var(--sl-muted); line-height:1.85; max-width:700px; }
    .demo-dark .p-s-body strong { color:var(--sl-text); }
    .demo-dark .p-example { background:var(--sl-bg); display:flex; flex-direction:column; align-items:center; justify-content:center; padding:52px 80px; }
    .demo-dark .p-ex-heading { font-size:15px; font-weight:700; letter-spacing:.09em; text-transform:uppercase; color:var(--sl-muted); margin-bottom:28px; display:flex; align-items:center; gap:12px; align-self:flex-start; }
    .demo-dark .p-ex-heading span { color:var(--sl-text); font-size:28px; font-weight:600; letter-spacing:-.01em; text-transform:none; }
    .demo-dark .p-ex-rows { display:flex; flex-direction:column; gap:10px; width:100%; max-width:960px; }
    .demo-dark .p-ex-row { display:flex; align-items:center; gap:20px; background:var(--sl-surface); border:1.5px solid var(--sl-border); border-radius:12px; padding:18px 24px; }
    .demo-dark .p-ex-row.accent { background:var(--sl-acc-bg); border-color:var(--sl-acc-bd); }
    .demo-dark .p-ex-row.gold   { background:var(--sl-gld-bg); border-color:var(--sl-gld-bd); }
    .demo-dark .p-ex-k { font-size:15px; font-weight:700; letter-spacing:.09em; text-transform:uppercase; color:var(--sl-muted); min-width:110px; flex-shrink:0; }
    .demo-dark .p-ex-row.accent .p-ex-k { color:var(--accent); }
    .demo-dark .p-ex-row.gold   .p-ex-k { color:var(--gold); }
    .demo-dark .p-ex-arr { color:var(--sl-dim); flex-shrink:0; font-size:18px; }
    .demo-dark .p-ex-v { font-size:19px; line-height:1.5; color:var(--sl-text); }
    .demo-dark .p-task { background:var(--sl-bg); display:flex; flex-direction:column; justify-content:center; padding:80px 120px; }
    .demo-dark .p-task-pill { display:inline-flex; align-items:center; gap:8px; font-size:16px; font-weight:700; letter-spacing:.09em; text-transform:uppercase; color:var(--accent); background:var(--sl-acc-bg); border:1px solid var(--sl-acc-bd); padding:8px 24px; border-radius:100px; margin-bottom:36px; align-self:flex-start; }
    .demo-dark .p-task-body { font-size:30px; font-weight:500; line-height:1.75; color:var(--sl-text); max-width:820px; }
    .demo-dark .p-mcq-slide { background:var(--sl-bg); display:flex; flex-direction:column; align-items:center; justify-content:center; padding:60px; gap:32px; }
    .demo-dark .p-mcq-label { font-size:14px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--sl-muted); }
    .demo-dark .p-mcq-q { font-size:38px; font-weight:700; color:var(--sl-text); text-align:center; max-width:800px; line-height:1.2; }
    .demo-dark .p-mcq-opts { display:grid; grid-template-columns:1fr 1fr; gap:14px; width:100%; max-width:840px; }
    .demo-dark .p-mcq-opt { background:rgba(255,255,255,.06); border:1.5px solid rgba(255,255,255,.1); border-radius:14px; padding:20px 22px; display:flex; align-items:center; gap:14px; }
    .demo-dark .p-mcq-ltr { width:36px; height:36px; border-radius:8px; background:rgba(255,255,255,.08); display:flex; align-items:center; justify-content:center; font-size:16px; font-weight:800; color:rgba(255,255,255,.4); flex-shrink:0; }
    .demo-dark .p-mcq-txt { font-size:18px; color:var(--sl-text); }
    .demo-dark .p-rg-slide { background:var(--sl-bg); display:flex; flex-direction:column; padding:44px 56px; gap:20px; }
    .demo-dark .p-rg-label { font-size:14px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); }
    .demo-dark .p-rg-grid { display:grid; grid-template-columns:1fr 1fr 1fr; gap:16px; flex:1; }
    .demo-dark .p-rg-cell { background:var(--sl-surface); border:1.5px solid var(--sl-border); border-radius:14px; padding:24px; display:flex; flex-direction:column; gap:10px; }
    .demo-dark .p-rg-num { font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:.1em; color:var(--accent); }
    .demo-dark .p-rg-q { font-size:19px; color:var(--sl-text); line-height:1.4; }
    .demo-dark .p-et-slide { background:var(--sl-bg); display:flex; flex-direction:column; align-items:center; justify-content:center; padding:80px; text-align:center; gap:28px; }
    .demo-dark .p-et-label { font-size:14px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--green); }
    .demo-dark .p-et-q { font-size:40px; font-weight:700; letter-spacing:-.02em; line-height:1.2; color:var(--sl-text); max-width:760px; }
    .demo-dark .p-et-hint { font-size:18px; color:var(--sl-muted); font-style:italic; }
    .demo-dark .p-recap { background:radial-gradient(ellipse at center,#141000 0%,#0d0d0d 100%); display:flex; flex-direction:column; align-items:center; justify-content:center; padding:80px; text-align:center; gap:28px; }
    .demo-dark .p-recap-icon { font-size:64px; line-height:1; }
    .demo-dark .p-recap-title { font-size:44px; font-weight:700; letter-spacing:-.02em; color:var(--gold); line-height:1.15; }
    .demo-dark .p-recap-body { font-size:20px; line-height:1.75; color:var(--sl-muted); max-width:640px; }
    .demo-dark .p-recap-pill { display:inline-flex; align-items:center; background:rgba(212,160,32,.1); border:1.5px solid rgba(212,160,32,.28); border-radius:100px; overflow:hidden; }
    .demo-dark .p-recap-pill span { font-size:13px; font-weight:800; letter-spacing:.1em; text-transform:uppercase; padding:10px 20px; color:var(--gold); }
    .demo-dark .p-recap-pill i { font-size:16px; color:rgba(212,160,32,.28); font-style:normal; padding:0 2px; }

    /* True/False slide */
    .demo-dark .p-truef-slide { background:var(--sl-bg); display:flex; flex-direction:column; align-items:center; justify-content:center; padding:80px; gap:40px; text-align:center; }
    .demo-dark .p-truef-eyebrow { font-size:16px; font-weight:700; text-transform:uppercase; letter-spacing:.12em; color:var(--gold); }
    .demo-dark .p-truef-statement { font-size:52px; font-weight:700; color:var(--sl-text); line-height:1.2; max-width:840px; }
    .demo-dark .p-truef-hint { font-size:20px; color:var(--sl-muted); }
    .demo-dark .p-truef-options { display:flex; gap:22px; }
    .demo-dark .p-truef-btn { padding:22px 60px; border-radius:16px; border:2.5px solid; font-size:28px; font-weight:800; font-family:var(--font); cursor:pointer; background:transparent; letter-spacing:.01em; }
    .demo-dark .p-truef-btn.t { border-color:#10b981; color:#10b981; background:rgba(16,185,129,.08); }
    .demo-dark .p-truef-btn.f { border-color:#ef4444; color:#ef4444; background:rgba(239,68,68,.08); }
    .demo-dark .p-truef-btn.n { border-color:var(--sl-border); color:var(--sl-muted); background:var(--sl-surface); }

    /* Match Up slide */
    .demo-dark .p-mu-slide { background:var(--sl-bg); display:flex; flex-direction:column; padding:40px 52px; gap:18px; overflow:hidden; }
    .demo-dark .p-mu-pill { font-size:14px; font-weight:800; text-transform:uppercase; letter-spacing:.09em; color:var(--gold); }
    .demo-dark .p-mu-heading { font-size:32px; font-weight:700; color:var(--sl-text); margin:0; }
    .demo-dark .p-mu-body { display:flex; gap:18px; flex:1; min-height:0; }
    .demo-dark .p-mu-terms-col { flex:1; display:flex; flex-direction:column; gap:10px; }
    .demo-dark .p-mu-row { display:flex; flex-direction:column; gap:5px; }
    .demo-dark .p-mu-term-name { font-size:20px; font-weight:600; color:var(--sl-text); }
    .demo-dark .p-mu-drop-zone { min-height:50px; border:2px dashed var(--sl-border); border-radius:12px; display:flex; align-items:center; padding:8px 14px; transition:border-color .15s; }
    .demo-dark .p-mu-drop-zone.filled { border-style:solid; border-color:var(--accent); background:var(--sl-acc-bg); }
    .demo-dark .p-mu-drop-hint { font-size:16px; color:var(--sl-dim); }
    .demo-dark .p-mu-placed-text { font-size:20px; color:var(--sl-text); }
    .demo-dark .p-mu-bank-col { width:36%; background:var(--sl-surface); border:1.5px solid var(--sl-border); border-radius:14px; padding:14px; display:flex; flex-direction:column; gap:10px; flex-shrink:0; }
    .demo-dark .p-mu-bank-label { font-size:13px; font-weight:700; text-transform:uppercase; letter-spacing:.07em; color:var(--sl-dim); }
    .demo-dark .p-mu-tile { padding:10px 14px; background:var(--sl-bg); border:1.5px solid var(--sl-border); border-radius:10px; font-size:19px; color:var(--sl-text); }
    .demo-dark .p-mu-tile.placed { opacity:.22; }

    /* Odd One Out */
    .demo-dark .p-ooo-slide { background:var(--sl-bg); display:flex; flex-direction:column; padding:48px 72px; gap:22px; }
    .demo-dark .p-ooo-pill { font-size:14px; font-weight:800; text-transform:uppercase; letter-spacing:.09em; color:var(--gold); }
    .demo-dark .p-ooo-heading { font-size:34px; font-weight:700; color:var(--sl-text); margin:0; }
    .demo-dark .p-ooo-prompt-text { font-size:22px; color:var(--sl-muted); margin:0; }
    .demo-dark .p-ooo-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; flex:1; }
    .demo-dark .p-ooo-card { padding:30px 20px; background:var(--sl-surface); border:2px solid var(--sl-border); border-radius:14px; display:flex; align-items:center; justify-content:center; text-align:center; }
    .demo-dark .p-ooo-card.selected { border-color:var(--accent); background:var(--sl-acc-bg); }
    .demo-dark .p-ooo-card-label { font-size:26px; font-weight:600; color:var(--sl-text); }

    /* Cloze */
    .demo-dark .p-cloze-slide { background:var(--sl-bg); display:flex; flex-direction:column; padding:56px 80px; gap:28px; }
    .demo-dark .p-cloze-pill { font-size:14px; font-weight:800; text-transform:uppercase; letter-spacing:.09em; color:var(--gold); }
    .demo-dark .p-cloze-heading { font-size:30px; font-weight:700; color:var(--sl-text); margin:0; }
    .demo-dark .p-cloze-hint { font-size:18px; color:var(--sl-muted); margin:0; }
    .demo-dark .p-cloze-passage { font-size:28px; line-height:2.2; color:var(--sl-text); }
    .demo-dark .p-cloze-input { display:inline-block; border:none; border-bottom:2.5px solid var(--gold); background:rgba(212,160,32,.08); color:var(--sl-text); font-size:28px; font-family:var(--font); padding:2px 10px; min-width:130px; border-radius:4px 4px 0 0; text-align:center; vertical-align:baseline; }
    .demo-dark .p-cloze-wb { display:flex; flex-wrap:wrap; gap:10px; padding-top:18px; border-top:1px solid var(--sl-border); }
    .demo-dark .p-cloze-wb-label { width:100%; font-size:13px; font-weight:700; text-transform:uppercase; letter-spacing:.07em; color:var(--sl-dim); }
    .demo-dark .p-cloze-tile { padding:8px 20px; background:var(--sl-surface); border:1.5px solid var(--sl-border); border-radius:100px; font-size:22px; color:var(--sl-text); }

    /* Prize Ladder / Hot Seat */
    .demo-dark .p-mill-slide { background:radial-gradient(ellipse at 50% -10%,#0d1a30 0%,#050810 100%); display:flex; flex-direction:column; align-items:center; justify-content:center; padding:56px 60px; gap:36px; }
    .demo-dark .p-mill-label { font-size:14px; font-weight:800; text-transform:uppercase; letter-spacing:.14em; color:var(--gold); }
    .demo-dark .p-mill-q { font-size:38px; font-weight:700; color:#f0e8d0; text-align:center; max-width:900px; line-height:1.25; }
    .demo-dark .p-mill-opts { display:grid; grid-template-columns:1fr 1fr; gap:14px; width:100%; max-width:880px; }
    .demo-dark .p-mill-opt { background:linear-gradient(180deg,rgba(255,255,255,.05) 0%,rgba(255,255,255,.02) 100%); border:1.5px solid rgba(212,160,32,.3); border-radius:100px; padding:18px 28px; display:flex; align-items:center; gap:16px; transition:border-color .15s; }
    .demo-dark .p-mill-opt.hot { background:linear-gradient(180deg,rgba(212,160,32,.16) 0%,rgba(212,160,32,.07) 100%); border-color:rgba(212,160,32,.65); }
    .demo-dark .p-mill-lbl { width:32px; height:32px; border-radius:50%; border:1.5px solid rgba(212,160,32,.45); display:flex; align-items:center; justify-content:center; font-size:14px; font-weight:800; color:var(--gold); flex-shrink:0; }
    .demo-dark .p-mill-opt.hot .p-mill-lbl { background:rgba(212,160,32,.3); border-color:var(--gold); }
    .demo-dark .p-mill-txt { font-size:20px; color:#e8d8b0; font-weight:500; }

    /* Reading mode extensions (.demo-light) for new slide types */
    .demo-light .rd-tf-opt { display:flex; align-items:center; gap:9px; padding:12px 16px; border-radius:9px; margin-bottom:.45em; border:2px solid; font-size:.9em; font-weight:700; font-family:var(--font); }
    .demo-light .rd-tf-opt.tru { border-color:rgba(12,145,102,.4); background:rgba(12,145,102,.08); color:var(--green); }
    .demo-light .rd-tf-opt.fls { border-color:rgba(220,38,38,.2); background:rgba(220,38,38,.04); color:#c03030; opacity:.45; }
    .demo-light .rd-tf-icon { font-size:1em; }
    .demo-light .rd-clz-blank { color:var(--gold); font-weight:700; border-bottom:2px solid var(--gold); padding:0 4px; display:inline-block; }
    .demo-light .rd-mill-opt { display:flex; align-items:center; gap:9px; padding:10px 13px; border-radius:8px; margin-bottom:.4em; border:1.5px solid rgba(168,112,16,.28); background:rgba(168,112,16,.05); }
    .demo-light .rd-mill-opt.hot { border-color:rgba(168,112,16,.55); background:rgba(168,112,16,.13); }
    .demo-light .rd-mill-lbl { width:26px; height:26px; border-radius:50%; border:1.5px solid rgba(168,112,16,.45); display:flex; align-items:center; justify-content:center; font-size:.72em; font-weight:800; color:var(--gold); flex-shrink:0; }
    .demo-light .rd-mill-txt { font-size:.9em; font-weight:500; color:var(--text); }

    /* Student bottom strip */
    .lsd-st-bottom { display:flex; align-items:center; justify-content:space-between; padding:6px 12px; background:var(--card); border-top:1px solid var(--border); flex-shrink:0; }
    .lsd-sc-sm { font-size:.58rem; font-weight:700; letter-spacing:.05em; color:var(--dim); }
    .lsd-font-row { display:flex; gap:3px; }
    .lsd-fb { padding:2px 7px; border:1px solid var(--border); border-radius:100px; background:none; color:var(--dim); font-size:.56rem; font-weight:700; font-family:var(--font); }

    /* Slide type pills */
    .lsd-pills { display:flex; flex-wrap:wrap; gap:6px; justify-content:center; margin-top:1.5rem; }
    .lsd-pill { padding:5px 13px; border-radius:100px; border:1px solid var(--border); background:var(--bg-card); font-size:.75rem; font-weight:500; color:var(--text-2); cursor:pointer; transition:all .15s; }
    .lsd-pill:hover { border-color:var(--brand); color:var(--brand); }
    .lsd-pill.on { background:var(--brand); border-color:var(--brand); color:#fff; }

    /* Hotspot results (spotlight 4) */
    .hs-wrap { padding: 14px; }
    .hs-board {
      background: linear-gradient(135deg, #1a2744, #1d3461);
      border-radius: 10px; padding: 16px; position: relative; min-height: 170px;
      display: flex; align-items: center; justify-content: center; overflow: hidden;
    }
    .hs-cell-svg { opacity: 0.7; }
    .hs-m {
      position: absolute; width: 26px; height: 26px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 9px; font-weight: 800; color: white;
      box-shadow: 0 2px 8px rgba(0,0,0,0.4);
      flex-direction: column; line-height: 1;
    }
    .hs-m.g { background: #16a34a; }
    .hs-m.a { background: #d97706; }
    .hs-m.r { background: #dc2626; }
    .hs-m .hm-n { font-size: 9px; font-weight: 800; }
    .hs-m .hm-p { font-size: 6px; font-weight: 700; opacity: 0.85; }
    .hs-legend {
      display: flex; gap: 12px; justify-content: center; margin-top: 10px;
    }
    .hs-leg-item { display: flex; align-items: center; gap: 4px; font-size: 8.5px; color: var(--text-2); }
    .hs-dot { width: 8px; height: 8px; border-radius: 50%; }

    /* ─── WORKSHEET SPOTLIGHT ───────────────────────── */
    .ws-card .v-card-head { background: #1a1f14; color: #b5cfa0; border-color: #2d3a24; }
    .ws-card .v-card-head-dot { background: #6ab04c; }
    .ws-sheet {
      background: #f9f8f5; padding: 18px 16px 14px;
      color: #2a2a2a; font-size: 9px; line-height: 1.55;
    }
    .ws-page-title {
      font-size: 10px; font-weight: 700; color: #1a1a1a;
      border-bottom: 1.5px solid #6ab04c; padding-bottom: 6px; margin-bottom: 10px;
      letter-spacing: .01em;
    }
    .ws-section { margin-bottom: 10px; }
    .ws-q-label {
      font-size: 7px; font-weight: 700; text-transform: uppercase;
      letter-spacing: .1em; color: #6ab04c; margin-bottom: 3px;
    }
    .ws-q-text { font-size: 8.5px; color: #333; margin-bottom: 4px; }
    .ws-opts { display: flex; flex-direction: column; gap: 2.5px; }
    .ws-opt { display: flex; align-items: center; gap: 5px; font-size: 8px; color: #555; }
    .ws-opt-lbl {
      width: 14px; height: 14px; border: 1px solid #bbb; border-radius: 3px;
      display: flex; align-items: center; justify-content: center;
      font-weight: 700; font-size: 7px; color: #888; flex-shrink: 0;
    }
    .ws-blank {
      display: inline-block; border-bottom: 1px solid #888;
      min-width: 50px; margin: 0 2px;
    }
    .ws-lines { display: flex; flex-direction: column; gap: 5px; margin-top: 4px; }
    .ws-line { border-bottom: 1px solid #d0cdc6; height: 10px; }
    .ws-export-row { display: flex; gap: 6px; margin-top: 10px; }
    .ws-export-btn {
      background: #eef4e8; border: 1px solid #c4d9b0; border-radius: 4px;
      padding: 4px 8px; font-size: 7.5px; font-weight: 600; color: #3d6b27;
      cursor: default;
    }

    /* ─── ACTIVITIES GRID ───────────────────────────── */
    .act-header { text-align: center; margin-bottom: 3rem; }
    .act-header h2 {
      font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 800;
      letter-spacing: -0.025em; margin-bottom: 0.75rem;
    }
    .act-header p { color: var(--text-2); max-width: 480px; margin: 0 auto; font-size: 0.95rem; }
    .act-group { margin-bottom: 2rem; }
    .act-group-lbl {
      font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
      letter-spacing: 0.1em; color: var(--text-3); margin-bottom: 0.75rem;
    }
    .act-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
    .chip {
      background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px;
      padding: 0.45rem 0.85rem; font-size: 0.83rem; font-weight: 500; color: var(--text);
      display: flex; align-items: center; gap: 0.4rem;
      transition: all 0.15s; cursor: default;
    }
    .chip:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-1px); }
    .chip-i { font-size: 0.95rem; }
    .chip-new { font-size: 0.6rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--green); background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.25); border-radius: 999px; padding: 0.05rem 0.4rem; }

    /* ─── INTERACTIVE SESSIONS ──────────────────────── */
    .is-head { text-align: center; max-width: 680px; margin: 0 auto 3.5rem; }
    .is-head h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -0.025em; margin-bottom: 0.55rem; }
    .is-subhead { font-size: 1rem; font-weight: 600; color: var(--text); letter-spacing: -0.01em; line-height: 1.5; margin-bottom: 1rem; font-style: italic; }
    .is-body { font-size: 0.95rem; color: var(--text-2); line-height: 1.8; font-weight: 300; }
    .is-group-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-3); margin-bottom: 1rem; }
    .is-headline-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; margin-bottom: 1rem; }
    .is-headline-card {
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: 16px; padding: 1.75rem 1.5rem; display: flex;
      flex-direction: column; gap: 0.7rem; position: relative; overflow: hidden;
      transition: border-color 0.2s, transform 0.2s;
    }
    .is-headline-card.we   { background: linear-gradient(135deg, rgba(16,185,129,.12), rgba(16,185,129,.04)); border-color: rgba(16,185,129,.28); }
    .is-headline-card.mill { background: linear-gradient(135deg, rgba(212,160,32,.13), rgba(212,160,32,.04)); border-color: rgba(212,160,32,.28); }
    .is-headline-card.bingo { background: linear-gradient(135deg, rgba(107,159,212,.13), rgba(107,159,212,.04)); border-color: rgba(107,159,212,.25); }
    .is-headline-card.cardmatch { background: linear-gradient(135deg, rgba(107,159,212,.13), rgba(107,159,212,.04)); border-color: rgba(107,159,212,.25); }
    .is-headline-card.wedge { background: linear-gradient(135deg, rgba(124,92,214,.13), rgba(224,153,42,.06)); border-color: rgba(124,92,214,.28); }
    .is-headline-card.wide { grid-column: 1 / -1; }
    .is-headline-card:hover { border-color: var(--brand); transform: translateY(-2px); }
    .is-hc-icon { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; margin-bottom: 0.2rem; }
    .is-hc-name { font-size: 1rem; font-weight: 700; color: var(--text); letter-spacing: -0.01em; }
    .is-hc-desc { font-size: 0.84rem; color: var(--text-2); line-height: 1.65; font-weight: 300; flex: 1; }
    .is-hc-tag {
      display: inline-flex; align-items: center; font-size: 0.65rem; font-weight: 700;
      text-transform: uppercase; letter-spacing: 0.08em; color: var(--brand);
      background: var(--brand-glow); border: 1px solid rgba(74,126,180,0.2);
      border-radius: 100px; padding: 0.2rem 0.65rem; margin-top: 0.3rem; align-self: flex-start;
    }
    .is-everyday-wrap { margin-bottom: 3rem; }
    .is-everyday-pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }
    .is-pill {
      background: var(--bg-alt); border: 1px solid var(--border);
      border-radius: 100px; padding: 0.38rem 0.95rem;
      font-size: 0.82rem; font-weight: 500; color: var(--text-2);
      transition: border-color 0.15s, color 0.15s;
    }
    .is-pill:hover { border-color: var(--brand); color: var(--brand); }
    .is-csv-callout {
      background: rgba(16,185,129,0.06); border: 1px solid rgba(16,185,129,0.22);
      border-radius: 14px; padding: 1.75rem 2rem; margin-bottom: 2.75rem;
      display: flex; gap: 1.5rem; align-items: flex-start;
    }
    .is-csv-icon {
      width: 44px; height: 44px; flex-shrink: 0;
      background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.25);
      border-radius: 10px; display: flex; align-items: center; justify-content: center;
      color: #10b981; margin-top: 0.1rem;
    }
    .is-csv-text h3 { font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 0.45rem; }
    .is-csv-text p { font-size: 0.86rem; color: var(--text-2); line-height: 1.7; font-weight: 300; }
    @media (max-width: 820px) {
      .is-headline-grid { grid-template-columns: 1fr; }
      .is-csv-callout { flex-direction: column; gap: 1rem; }
    }

    /* ─── HOW IT WORKS ──────────────────────────────── */
    .how-head { text-align: center; margin-bottom: 3.5rem; }
    .how-head h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -0.025em; margin-bottom: 0.6rem; }
    .how-head p { color: var(--text-2); font-size: 0.95rem; }
    .steps {
      display: grid; grid-template-columns: repeat(3,1fr); gap: 2rem;
      max-width: 820px; margin: 0 auto; position: relative;
    }
    .steps::before {
      content: ''; position: absolute; top: 23px;
      left: calc(16.67% + 23px); right: calc(16.67% + 23px); height: 1px;
      background: linear-gradient(90deg, transparent, var(--brand), transparent);
    }
    .step { text-align: center; position: relative; z-index: 1; }
    .step-n {
      width: 46px; height: 46px; border-radius: 50%; background: var(--brand);
      color: white; font-size: 1rem; font-weight: 800;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 1rem;
      box-shadow: 0 0 0 6px var(--brand-glow), 0 4px 16px rgba(74,126,180,0.35);
    }
    .step h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.5rem; }
    .step p { font-size: 0.85rem; color: var(--text-2); line-height: 1.65; }

    /* ─── PRICING ───────────────────────────────────── */
    .pricing-head { text-align: center; margin-bottom: 3rem; }
    .pricing-head h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -0.025em; margin-bottom: 0.6rem; }
    .pricing-head p { color: var(--text-2); font-size: 0.95rem; }
    .pricing-single {
      max-width: 640px; margin: 0 auto; display: flex; flex-direction: column; gap: 1.25rem;
    }
    .p-card {
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: 20px; overflow: hidden;
      transition: background 0.3s, border-color 0.3s;
    }
    .p-card.pro {
      border-color: var(--brand); position: relative;
    }
    .p-card.pro::before {
      content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
      background: linear-gradient(90deg, var(--brand), var(--cyan));
    }
    .p-card-inner {
      padding: 2.25rem 2.25rem 2rem;
      display: grid; grid-template-columns: auto 1fr; gap: 0 2.5rem; align-items: start;
    }
    .p-card-inner > a { grid-column: 1 / -1; margin-top: 1.75rem; }
    .p-demo {
      background: var(--bg-alt); border: 1px solid var(--border);
      border-radius: 16px; padding: 1.5rem 1.75rem;
      display: flex; align-items: center; gap: 1.25rem;
      transition: background 0.3s, border-color 0.3s;
    }
    .p-demo-icon {
      width: 42px; height: 42px; border-radius: 50%;
      background: var(--brand-glow); border: 1px solid rgba(74,126,180,0.2);
      display: flex; align-items: center; justify-content: center;
      color: var(--brand); flex-shrink: 0;
    }
    .p-demo-title { font-size: 0.9rem; font-weight: 600; color: var(--text); margin-bottom: 0.3rem; }
    .p-demo-sub { font-size: 0.82rem; color: var(--text-2); line-height: 1.6; font-weight: 300; }
    .p-tier { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-3); margin-bottom: 0.5rem; }
    .p-tier.hi { color: var(--brand); }
    .p-price { font-size: 2.6rem; font-weight: 900; letter-spacing: -0.04em; color: var(--text); line-height: 1; }
    .p-price sup { font-size: 1.2rem; vertical-align: top; margin-top: 0.4rem; font-weight: 700; }
    .p-period { font-size: 0.78rem; color: var(--text-3); margin-bottom: 1.5rem; margin-top: 0.2rem; }
    .p-feats { list-style: none; display: flex; flex-direction: column; gap: 0.55rem; margin-bottom: 1.75rem; }
    .p-feat { display: flex; align-items: center; gap: 0.55rem; font-size: 0.85rem; color: var(--text-2); }
    .p-ck { color: #22c55e; font-weight: 700; } .p-xx { color: var(--text-3); }
    .btn-block {
      display: block; width: 100%; padding: 0.75rem; border-radius: 10px;
      font-size: 0.875rem; font-weight: 700; text-align: center; cursor: pointer;
      text-decoration: none; transition: all 0.2s; border: none; font-family: inherit;
    }
    .btn-block.out { background: transparent; border: 1.5px solid var(--border); color: var(--text); }
    .btn-block.out:hover { background: var(--bg-alt); }
    .btn-block.fil { background: var(--brand); color: white; box-shadow: 0 4px 18px rgba(74,126,180,0.3); }
    .btn-block.fil:hover { background: var(--brand-2); transform: translateY(-1px); }

    /* ─── FINAL CTA ─────────────────────────────────── */
    .cta-final {
      background: var(--bg-alt);
      border-top: 1px solid var(--border);
      text-align: center; padding: 7rem 2rem; position: relative; overflow: hidden;
    }
    .cta-final::before {
      content: ''; position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
      width: 600px; height: 600px;
      background: radial-gradient(circle, var(--brand-glow) 0%, transparent 65%);
      pointer-events: none;
    }
    .cta-final h2 {
      font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 900; color: var(--text);
      letter-spacing: -0.03em; margin-bottom: 1rem; position: relative;
    }
    .cta-final p { color: var(--text-2); font-size: 1.05rem; max-width: 500px; margin: 0 auto 2.75rem; line-height: 1.8; position: relative; }
    .cta-final .hero-ctas { position: relative; margin-bottom: 0; }
    .cta-final .btn-lg.primary { background: var(--brand); color: white; box-shadow: 0 4px 24px rgba(74,126,180,0.3); }
    .cta-final .btn-lg.primary:hover { background: var(--brand-2); }
    .cta-final .btn-lg.secondary { border-color: var(--border); color: var(--text-2); }
    .cta-final .btn-lg.secondary:hover { background: var(--bg); color: var(--text); }

    /* ─── FOOTER ────────────────────────────────────── */
    footer { background: var(--bg); border-top: 1px solid var(--border); padding: 3.5rem 2rem 2rem; }
    .footer-inner {
      max-width: 1100px; margin: 0 auto;
      display: grid; grid-template-columns: 2fr 1fr 1.3fr 1fr 1fr; gap: 2.5rem;
    }
    .footer-brand p { font-size: 0.82rem; color: var(--text-3); line-height: 1.7; margin-top: 0.75rem; max-width: 210px; }
    .footer-col h4 { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-3); margin-bottom: 0.9rem; }
    .footer-col a { display: block; font-size: 0.85rem; color: var(--text-2); text-decoration: none; margin-bottom: 0.45rem; transition: color 0.2s; }
    .footer-col a:hover { color: var(--text); }
    .footer-bottom {
      max-width: 1100px; margin: 2rem auto 0; padding-top: 2rem;
      border-top: 1px solid var(--border);
      display: flex; justify-content: space-between; align-items: center;
      font-size: 0.78rem; color: var(--text-3); flex-wrap: wrap; gap: 0.5rem;
    }

    /* ─── SCROLL REVEAL ─────────────────────────────── */
    /* Elements start VISIBLE – JS opts them into the animation by adding .scroll-armed to <html> */
    .r { transition: opacity 0.65s ease, transform 0.65s ease; }
    .scroll-armed .r { opacity: 0; transform: translateY(28px); }
    .scroll-armed .r.v, .r.v { opacity: 1; transform: translateY(0); }
    .r.d1 { transition-delay: 0.1s; } .r.d2 { transition-delay: 0.2s; } .r.d3 { transition-delay: 0.3s; } .r.d4 { transition-delay: 0.4s; }

    /* ─── BADGE ─────────────────────────────────────── */
    .badge {
      display: inline-flex; align-items: center; gap: 0.35rem;
      background: var(--brand-glow); color: var(--brand);
      font-size: 0.78rem; font-weight: 600; padding: 0.3rem 0.8rem;
      border-radius: 999px; border: 1px solid rgba(74,126,180,0.2);
    }

    /* ─── AUTHOR MOCKUP TILES ──────────────────────── */
    .am-wrap {
      background: #111015; padding: 10px 12px 14px;
    }
    .am-group-lbl {
      font-size: 7px; font-weight: 700; text-transform: uppercase;
      letter-spacing: 0.1em; color: #5a5878; margin: 8px 0 5px;
    }
    .am-row { display: flex; flex-wrap: wrap; gap: 6px; }
    .am-tile {
      background: #1e1d2a; border: 1px solid #2a293a; border-radius: 6px;
      padding: 5px 5px 4px; display: flex; flex-direction: column;
      align-items: center; gap: 3px; cursor: pointer; transition: border-color 0.15s;
    }
    .am-tile:hover { border-color: #4a7eb4; }
    .am-svg { width: 44px; height: 28px; display: block; }
    .am-name {
      font-size: 6px; color: #8a88a0; font-weight: 600;
      text-align: center; white-space: nowrap;
    }

    /* ─── WORD CLOUD ────────────────────────────────── */
    .wc-wrap { padding: 12px; }
    .wc-board {
      background: linear-gradient(135deg, #0d0c11, #16151f);
      border-radius: 10px; padding: 18px 14px;
      min-height: 160px; display: flex; flex-wrap: wrap;
      align-items: center; justify-content: center; gap: 6px 10px;
    }
    .wc-word { font-weight: 800; line-height: 1; color: rgba(255,255,255,0.65); }
    .wc-xl { font-size: 30px; }
    .wc-lg { font-size: 20px; }
    .wc-md { font-size: 14px; color: rgba(255,255,255,0.55); }
    .wc-sm { font-size: 11px; color: rgba(255,255,255,0.4); }
    .wc-xs { font-size: 9px; color: rgba(255,255,255,0.28); }
    .wc-prompt {
      font-size: 8px; color: var(--text-3); text-align: center; margin-top: 8px;
    }

    /* ─── PRIVACY SECTION ──────────────────────────── */
    .prv-grid {
      display: grid; grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem; max-width: 1000px; margin: 0 auto;
    }
    .prv-card {
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: 14px; padding: 1.75rem 1.5rem;
      transition: background 0.3s, border-color 0.3s;
    }
    .prv-icon {
      width: 40px; height: 40px; border-radius: 10px;
      background: var(--brand-glow); border: 1px solid rgba(74,126,180,0.15);
      display: flex; align-items: center; justify-content: center;
      color: var(--brand); margin-bottom: 1rem;
    }
    .prv-card h3 {
      font-size: 0.92rem; font-weight: 600; color: var(--text);
      margin-bottom: 0.5rem; letter-spacing: -0.01em;
    }
    .prv-card p {
      font-size: 0.84rem; color: var(--text-2); line-height: 1.7; font-weight: 300;
    }
    @media (max-width: 820px) {
      .prv-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 540px) {
      .prv-grid { grid-template-columns: 1fr; }
    }
    .prv-grid-compact .prv-card {
      padding: 1.1rem 1.25rem; display: flex; align-items: center; gap: 0.85rem;
    }
    .prv-grid-compact .prv-icon { width: 34px; height: 34px; margin-bottom: 0; flex-shrink: 0; }
    .prv-grid-compact .prv-card h3 { margin-bottom: 0; font-size: 0.86rem; }
    .prv-faq-link {
      display: inline-flex; align-items: center; gap: 0.4rem;
      background: none; border: none; cursor: pointer; font-family: inherit;
      font-size: 0.9rem; font-weight: 600; color: var(--brand);
      padding: 0.4rem 0.2rem;
    }
    .prv-faq-link:hover { text-decoration: underline; }

    /* ─── SCREENSHOTS SECTION ───────────────────────── */
    .sc-head { text-align: center; margin-bottom: 3rem; }
    .sc-head h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -0.025em; margin-bottom: 0.6rem; }
    .sc-head p { color: var(--text-2); font-size: 0.95rem; max-width: 500px; margin: 0 auto; }
    .sc-grid {
      display: grid; grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem; max-width: 1060px; margin: 0 auto;
    }
    .sc-item {}
    .sc-caption {
      font-size: 0.8rem; color: var(--text-2); margin-top: 0.75rem;
      text-align: center; font-weight: 500;
    }
    .sc-caption strong { color: var(--text); display: block; margin-bottom: 0.2rem; }
    /* Browser frame */
    .sf-browser {
      background: linear-gradient(180deg, #2a2a3a 0%, #1d1d2d 100%);
      border-radius: 10px 10px 0 0; overflow: hidden;
      box-shadow: 0 12px 40px rgba(0,0,0,0.35), 0 0 0 1px rgba(255,255,255,0.07);
    }
    .sf-bar {
      display: flex; align-items: center; gap: 5px;
      padding: 6px 10px 7px; background: #22223a;
    }
    .sf-dot { width: 7px; height: 7px; border-radius: 50%; }
    .sf-dot.r { background: #ff5f57; } .sf-dot.y { background: #febc2e; } .sf-dot.g { background: #28c840; }
    .sf-url {
      flex: 1; background: #1a1a2e; border-radius: 4px;
      height: 16px; font-size: 7px; color: rgba(255,255,255,0.3);
      display: flex; align-items: center; padding: 0 7px;
    }
    .sf-screen { min-height: 160px; overflow: hidden; }
    .sf-base { height: 10px; background: linear-gradient(180deg, #22223a, #1a1a28); border-radius: 0 0 8px 8px; }

    /* Student join screen */
    .ssc-join {
      background: #f8fafc; padding: 20px 16px; display: flex;
      flex-direction: column; align-items: center; justify-content: center;
      min-height: 160px; gap: 10px;
    }
    [data-theme="dark"] .ssc-join { background: #0d1117; }
    .ssc-logo {
      font-size: 11px; font-weight: 800; color: #4a7eb4;
      letter-spacing: -0.02em; margin-bottom: 4px;
    }
    .ssc-title { font-size: 9px; font-weight: 700; color: #0f172a; text-align: center; }
    [data-theme="dark"] .ssc-title { color: #e6edf3; }
    .ssc-sub { font-size: 7px; color: #94a3b8; text-align: center; margin-bottom: 4px; }
    .ssc-input {
      width: 100%; max-width: 140px; background: white; border: 1.5px solid #e2e8f0;
      border-radius: 8px; padding: 6px 8px; text-align: center;
      font-size: 14px; font-weight: 800; color: #0f172a;
      letter-spacing: 0.2em;
    }
    [data-theme="dark"] .ssc-input { background: #161b22; border-color: #30363d; color: #e6edf3; }
    .ssc-hint { font-size: 7px; color: #94a3b8; }
    .ssc-btn {
      background: #4a7eb4; color: white; border-radius: 7px;
      padding: 6px 20px; font-size: 8px; font-weight: 700;
      width: 100%; max-width: 140px; text-align: center;
    }
    .ssc-name-row { display: flex; gap: 4px; width: 100%; max-width: 140px; }
    .ssc-name {
      flex: 1; background: white; border: 1.5px solid #e2e8f0;
      border-radius: 6px; padding: 5px 6px; font-size: 7px; color: #64748b;
    }
    [data-theme="dark"] .ssc-name { background: #161b22; border-color: #30363d; color: #8b949e; }

    /* Teacher board live */
    .stb-wrap {
      background: #0d0d1a; padding: 12px; min-height: 160px;
    }
    .stb-header {
      display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px;
    }
    .stb-brand { font-size: 7px; font-weight: 700; color: rgba(255,255,255,0.3); letter-spacing: 0.12em; text-transform: uppercase; }
    .stb-meta { display: flex; gap: 6px; align-items: center; }
    .stb-joined { background: rgba(34,197,94,0.15); color: #22c55e; font-size: 7px; font-weight: 700; padding: 2px 6px; border-radius: 12px; border: 1px solid rgba(34,197,94,0.2); }
    .stb-slide { font-size: 7px; color: rgba(255,255,255,0.2); }
    .stb-q { font-size: 10px; font-weight: 700; color: white; margin-bottom: 10px; line-height: 1.35; }
    .stb-bars { display: flex; flex-direction: column; gap: 5px; }
    .stb-row { display: flex; align-items: center; gap: 5px; }
    .stb-lbl { width: 14px; height: 14px; border-radius: 3px; background: rgba(255,255,255,0.07); color: rgba(255,255,255,0.4); font-size: 7px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .stb-track { flex: 1; height: 18px; background: rgba(255,255,255,0.04); border-radius: 4px; overflow: hidden; }
    .stb-fill { height: 100%; border-radius: 4px; display: flex; align-items: center; padding: 0 6px; font-size: 7px; font-weight: 700; color: white; }
    .stb-fill.c { background: linear-gradient(90deg, #16a34a, #22c55e); }
    .stb-fill.w { background: rgba(255,255,255,0.08); }
    .stb-fill.p { background: rgba(74,126,180,0.5); }
    .stb-opt { font-size: 6.5px; color: rgba(255,255,255,0.35); flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 80px; }

    /* Author editor screen */
    .sau-wrap {
      background: #0f0e14; display: flex; min-height: 160px;
    }
    .sau-sidebar {
      width: 52px; background: #0a0910; border-right: 1px solid #1a1929;
      padding: 8px 4px; display: flex; flex-direction: column; gap: 5px;
    }
    .sau-thumb {
      border-radius: 3px; aspect-ratio: 16/9;
      background: #1e1d2a; border: 1px solid #2a293a;
    }
    .sau-thumb.active { border-color: #4a7eb4; }
    .sau-main { flex: 1; padding: 8px; display: flex; flex-direction: column; gap: 6px; }
    .sau-topbar { display: flex; justify-content: space-between; align-items: center; }
    .sau-title { font-size: 7px; font-weight: 700; color: rgba(255,255,255,0.4); letter-spacing: 0.1em; text-transform: uppercase; }
    .sau-actions { display: flex; gap: 4px; }
    .sau-btn { background: #1e1d2a; border: 1px solid #2a293a; border-radius: 4px; padding: 3px 7px; font-size: 6px; font-weight: 700; color: rgba(255,255,255,0.5); }
    .sau-btn.pri { background: #4a7eb4; border-color: #4a7eb4; color: white; }
    .sau-canvas {
      flex: 1; background: #1a1927; border-radius: 6px;
      border: 1px solid #2a293a; padding: 10px; display: flex; flex-direction: column; gap: 5px; align-items: center; justify-content: center;
    }
    .sau-q-bar { height: 5px; border-radius: 2px; background: rgba(255,255,255,0.2); width: 80%; }
    .sau-opts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; width: 100%; }
    .sau-opt-box { background: rgba(255,255,255,0.05); border: 1px solid #2a293a; border-radius: 4px; height: 22px; }
    .sau-opt-box.hl { border-color: #4a7eb4; background: rgba(74,126,180,0.1); }

    @media (max-width: 900px) {
      .sc-grid { grid-template-columns: 1fr; max-width: 420px; }
    }

    /* ─── ACTIVITY HINT ────────────────────────────── */
    .act-hint {
      font-size: 0.8rem; color: var(--text-3); margin-bottom: 2rem;
      text-align: center; font-weight: 300;
    }
    .chip[data-act] { cursor: pointer; }
    .chip[data-act]:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-glow); }
    #activities.act-tools-hidden { display: none; }

    /* ─── ACTIVITY MODAL ────────────────────────────── */
    .act-modal-bg {
      position: fixed; inset: 0; z-index: 500;
      background: rgba(0,0,0,0.55); backdrop-filter: blur(6px);
      display: flex; align-items: center; justify-content: center;
      padding: 2rem; opacity: 0; pointer-events: none;
      transition: opacity 0.2s;
    }
    .act-modal-bg.open { opacity: 1; pointer-events: all; }
    .act-modal {
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: 20px; max-width: 740px; width: 100%;
      position: relative; overflow: hidden;
      box-shadow: 0 32px 80px rgba(0,0,0,0.28);
      transform: translateY(16px); transition: transform 0.25s;
    }
    .act-modal-bg.open .act-modal { transform: translateY(0); }
    .act-modal-close {
      position: absolute; top: 1rem; right: 1rem; z-index: 2;
      background: var(--bg-alt); border: 1px solid var(--border);
      border-radius: 8px; width: 32px; height: 32px; cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      color: var(--text-2); transition: all 0.15s;
    }
    .act-modal-close:hover { background: var(--border); color: var(--text); }
    .act-modal-inner {
      display: grid; grid-template-columns: 260px 1fr;
    }
    .act-modal-slide {
      background: #111015; padding: 2.5rem 2rem;
      display: flex; align-items: center; justify-content: center;
      min-height: 260px;
    }
    .act-modal-slide svg { width: 100%; max-width: 200px; height: auto; }
    .act-modal-body { padding: 2.25rem 2rem 2.25rem 2rem; display: flex; flex-direction: column; gap: 0.6rem; }
    .act-modal-tag {
      font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
      letter-spacing: 0.1em; color: var(--brand);
    }
    .act-modal-name {
      font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em;
      color: var(--text); line-height: 1.2;
    }
    .act-modal-desc {
      font-size: 0.9rem; color: var(--text-2); line-height: 1.8;
      font-weight: 300; margin-top: 0.25rem;
    }
    .act-modal-tip {
      margin-top: 0.75rem; padding: 0.8rem 1rem;
      background: var(--brand-glow); border: 1px solid rgba(74,126,180,0.18);
      border-radius: 10px; font-size: 0.82rem; color: var(--text-2);
      line-height: 1.65; font-weight: 400;
    }
    .act-modal-tip strong { color: var(--brand); font-weight: 600; }
    @media (max-width: 600px) {
      .act-modal-inner { grid-template-columns: 1fr; }
      .act-modal-slide { min-height: 160px; }
    }

    /* ─── SCHOOL PURCHASE ───────────────────────────── */
    .school-band {
      background: var(--bg-alt); border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
      padding: 5rem 2rem;
    }
    .school-inner {
      max-width: 900px; margin: 0 auto;
      display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem;
      align-items: center;
    }
    .school-copy { display: flex; flex-direction: column; gap: 1.5rem; }
    .school-eyebrow {
      display: inline-flex; align-items: center; gap: 0.5rem;
      font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
      letter-spacing: 0.1em; color: var(--brand);
    }
    .school-eyebrow svg { opacity: 0.8; }
    .school-copy h2 {
      font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 800;
      letter-spacing: -0.03em; line-height: 1.15; color: var(--text);
    }
    .school-copy p {
      font-size: 0.925rem; color: var(--text-2); line-height: 1.8;
      font-weight: 300;
    }
    .school-feats {
      list-style: none; display: flex; flex-direction: column; gap: 0.65rem;
      margin-top: 0.25rem;
    }
    .school-feat {
      display: flex; align-items: flex-start; gap: 0.65rem;
      font-size: 0.875rem; color: var(--text-2); line-height: 1.5;
    }
    .school-feat-ck {
      color: var(--brand); font-weight: 700; font-size: 0.9rem;
      flex-shrink: 0; margin-top: 0.05rem;
    }
    .school-card {
      background: var(--bg-card); border: 1.5px solid var(--border);
      border-radius: 22px; padding: 2.5rem 2.25rem;
      display: flex; flex-direction: column; gap: 1.5rem;
      position: relative;
    }
    .school-card::before {
      content: ''; position: absolute; inset: -1.5px; border-radius: 22px;
      background: linear-gradient(135deg, var(--brand), transparent 60%);
      opacity: 0.18; pointer-events: none; z-index: 0;
    }
    .school-card > * { position: relative; z-index: 1; }
    .school-price-block { display: flex; flex-direction: column; gap: 0.2rem; }
    .school-price-label {
      font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
      letter-spacing: 0.1em; color: var(--text-3);
    }
    .school-price {
      font-size: 3.2rem; font-weight: 900; letter-spacing: -0.04em;
      color: var(--text); line-height: 1;
    }
    .school-price sup { font-size: 1.4rem; font-weight: 700; vertical-align: super; line-height: 0; }
    .school-price-sub {
      font-size: 0.8rem; color: var(--text-3); font-weight: 400;
      margin-top: 0.3rem;
    }
    .school-divider {
      border: none; border-top: 1px solid var(--border); margin: 0;
    }
    .school-roi {
      background: rgba(212,160,32,0.1); border: 1px solid rgba(212,160,32,0.28);
      border-radius: 12px; padding: 1rem 1.1rem;
      display: flex; align-items: flex-start; gap: 0.65rem;
    }
    .school-roi-icon {
      font-size: 1rem; flex-shrink: 0; margin-top: 0.05rem;
    }
    .school-roi p {
      font-size: 0.8rem; color: var(--text-2); line-height: 1.65;
      font-weight: 400;
    }
    .school-roi strong { color: var(--accent); font-weight: 600; }
    .school-cta {
      display: flex; flex-direction: column; gap: 0.65rem;
    }
    @media (max-width: 760px) {
      .school-inner { grid-template-columns: 1fr; gap: 2.5rem; }
    }

    /* ─── SCHOOL TIERS (new two-tier layout) ───────── */
    /* Override school-inner to flex-column for the new header + cards structure */
    #school .school-inner { display:flex; flex-direction:column; gap:2.5rem; max-width:1020px; }
    .school-head { text-align:center; max-width:620px; margin:0 auto; display:flex; flex-direction:column; gap:.9rem; align-items:center; }
    .school-head h2 { font-size:clamp(1.7rem,3vw,2.3rem); font-weight:800; letter-spacing:-.03em; line-height:1.15; }
    .school-head p { font-size:.9rem; color:var(--text-2); line-height:1.7; }
    .school-tiers { display:grid; grid-template-columns:1fr 1fr; gap:1.5rem; }
    @media(max-width:680px){ .school-tiers { grid-template-columns:1fr; } }

    .st-card { background:var(--bg-card); border:1.5px solid var(--border); border-radius:20px; padding:2rem 1.75rem; display:flex; flex-direction:column; gap:1.2rem; position:relative; }
    .st-card.featured { border-color:var(--brand); }
    .st-card.featured::before { content:''; position:absolute; inset:-1.5px; border-radius:20px; background:linear-gradient(135deg,var(--brand),transparent 60%); opacity:.13; pointer-events:none; }
    .st-card > * { position:relative; z-index:1; }
    .st-badge { position:absolute; top:-1px; right:1.5rem; background:var(--brand); color:#fff; font-size:.6rem; font-weight:800; text-transform:uppercase; letter-spacing:.1em; padding:4px 12px; border-radius:0 0 8px 8px; }
    .st-eyebrow { font-size:.65rem; font-weight:800; text-transform:uppercase; letter-spacing:.12em; color:var(--brand); }
    .st-price-row { display:flex; align-items:baseline; gap:.3rem; flex-wrap:wrap; margin-top:.2rem; }
    .st-price { font-size:2.7rem; font-weight:900; letter-spacing:-.04em; color:var(--text); line-height:1; }
    .st-price sup { font-size:1.3rem; font-weight:700; vertical-align:super; line-height:0; }
    .st-per { font-size:.85rem; font-weight:500; color:var(--text-2); }
    .st-sub { font-size:.76rem; color:var(--text-3); margin-top:.15rem; }
    .st-example { background:rgba(212,160,32,.08); border:1px solid rgba(212,160,32,.22); border-radius:9px; padding:.7rem 1rem; font-size:.78rem; color:var(--text-2); line-height:1.55; }
    .st-example strong { color:var(--text); }
    .st-feats { list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:.5rem; }
    .st-feat { display:flex; align-items:flex-start; gap:.5rem; font-size:.82rem; color:var(--text-2); line-height:1.5; }
    .st-ck { color:var(--brand); font-weight:700; flex-shrink:0; }
    .st-cta { margin-top:auto; padding-top:.4rem; }

    .btn-block.sec { background:none; border:1.5px solid var(--border); color:var(--text-2); text-decoration:none; display:block; text-align:center; padding:.8rem 1rem; border-radius:10px; font-size:.85rem; font-weight:600; transition:all .15s; }
    .btn-block.sec:hover { border-color:var(--brand); color:var(--brand); }

    /* ─── FREE TOOLS ────────────────────────────────── */
    .ft-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
      margin-top: 0;
    }
    .ft-card {
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: 18px; padding: 2rem 1.75rem;
      display: flex; flex-direction: column; gap: 1rem;
      transition: border-color 0.2s, box-shadow 0.2s;
      text-decoration: none; color: inherit;
    }
    .ft-card:hover {
      border-color: var(--brand);
      box-shadow: 0 8px 32px rgba(74,126,180,0.12);
    }
    .ft-icon {
      width: 44px; height: 44px; border-radius: 12px;
      background: var(--brand-glow); border: 1px solid rgba(74,126,180,0.2);
      display: flex; align-items: center; justify-content: center;
      color: var(--brand);
    }
    .ft-free-badge {
      display: inline-flex; align-items: center; gap: 0.3rem;
      font-size: 0.65rem; font-weight: 700; text-transform: uppercase;
      letter-spacing: 0.1em; color: var(--green);
      background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.25);
      padding: 0.2rem 0.6rem; border-radius: 999px; align-self: flex-start;
    }
    .ft-name {
      font-size: 1.05rem; font-weight: 700; letter-spacing: -0.02em;
      color: var(--text); line-height: 1.3;
    }
    .ft-desc {
      font-size: 0.875rem; color: var(--text-2); line-height: 1.75;
      font-weight: 300; flex: 1;
    }
    .ft-link {
      display: inline-flex; align-items: center; gap: 0.35rem;
      font-size: 0.82rem; font-weight: 500; color: var(--brand);
      margin-top: 0.25rem;
    }
    .ft-link svg { transition: transform 0.15s; }
    .ft-card:hover .ft-link svg { transform: translateX(3px); }
    .ft-head-note {
      text-align: center; font-size: 0.82rem; color: var(--text-3);
      font-weight: 300; margin-top: 2.5rem;
    }
    @media (max-width: 860px) { .ft-grid { grid-template-columns: 1fr; } }
    @media (min-width: 540px) and (max-width: 860px) { .ft-grid { grid-template-columns: 1fr 1fr; } }

    /* ─── PROBLEM SECTION ──────────────────────────── */
    .prob-head { text-align: center; max-width: 640px; margin: 0 auto 3.5rem; }
    .prob-head h2 { font-size: clamp(1.75rem,3.2vw,2.5rem); font-weight: 700; letter-spacing: -0.025em; margin-bottom: 1rem; line-height: 1.15; }
    .prob-head p { font-size: 1rem; color: var(--text-2); line-height: 1.8; font-weight: 300; }
    .prob-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; max-width: 1060px; margin: 0 auto; }
    .prob-card {
      background: var(--bg-card); border: 1px solid var(--border);
      border-radius: 16px; padding: 1.75rem 1.5rem;
      display: flex; flex-direction: column; gap: 0.75rem;
    }
    .prob-icon {
      width: 42px; height: 42px; border-radius: 11px;
      background: var(--brand-glow); border: 1px solid rgba(74,126,180,0.18);
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
    }
    .prob-icon svg { width: 20px; height: 20px; color: var(--brand); }
    .prob-card h3 { font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; color: var(--text); line-height: 1.3; }
    .prob-card p { font-size: 0.88rem; color: var(--text-2); line-height: 1.75; font-weight: 300; margin: 0; }
    @media (max-width: 720px) { .prob-grid { grid-template-columns: 1fr; } }

    /* ─── AUDIENCES ─────────────────────────────────── */
    .aud-sec { padding-top: 6rem; }
    .aud-head { text-align: center; max-width: 640px; margin: 0 auto 2.25rem; }
    .aud-head .eyebrow { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--brand); }
    .aud-head h2 { font-size: clamp(1.75rem,3.2vw,2.5rem); font-weight: 700; letter-spacing: -0.025em; margin-bottom: 1rem; line-height: 1.15; }
    .aud-head p { font-size: 1rem; color: var(--text-2); line-height: 1.8; font-weight: 300; }
    .aud-tabs {
      display: flex; justify-content: center; gap: 0.35rem; flex-wrap: wrap;
      background: var(--bg-alt); border: 1px solid var(--border); border-radius: 999px;
      padding: 0.3rem; width: fit-content; max-width: 100%; margin: 0 auto 2.5rem;
    }
    .aud-tab {
      font-family: inherit; font-size: 0.88rem; font-weight: 600; color: var(--text-2);
      background: none; border: none; border-radius: 999px; padding: 0.55rem 1.15rem;
      cursor: pointer; transition: background 0.2s, color 0.2s;
    }
    .aud-tab:hover { color: var(--text); }
    .aud-tab.on { background: var(--brand); color: #fff; }
    .aud-tab:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
    .aud-panel {
      display: grid; grid-template-columns: 1.15fr 1fr; gap: 3rem; align-items: center;
      max-width: 1060px; margin: 0 auto;
      background: var(--bg-card); border: 1px solid var(--border); border-radius: 20px; padding: 2.75rem;
    }
    .aud-panel[hidden] { display: none; }
    .aud-kicker { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--brand); margin-bottom: 0.6rem; }
    .aud-copy h3 { font-size: clamp(1.4rem,2.4vw,1.85rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 0.9rem; }
    .aud-copy p { font-size: 0.95rem; color: var(--text-2); line-height: 1.8; font-weight: 300; margin-bottom: 1.4rem; }
    .aud-link { display: inline-block; margin-top: 1.5rem; font-size: 0.9rem; font-weight: 600; color: var(--brand); text-decoration: none; }
    .aud-link:hover { text-decoration: underline; text-underline-offset: 3px; }
    .aud-moments { display: flex; flex-direction: column; gap: 0.7rem; }
    .aud-moment {
      display: flex; gap: 0.9rem; align-items: baseline;
      background: var(--bg-alt); border: 1px solid var(--border); border-radius: 12px; padding: 0.9rem 1.1rem;
    }
    .aud-m-lbl { flex: 0 0 6.5rem; font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-3); }
    .aud-m-txt { font-size: 0.88rem; color: var(--text); line-height: 1.5; }
    @media (max-width: 860px) {
      .aud-panel { grid-template-columns: 1fr; padding: 1.75rem 1.4rem; gap: 2rem; }
      .aud-tabs { border-radius: 16px; }
      .aud-m-lbl { flex-basis: 5.5rem; }
    }
    .ft-desc code { font-size: 0.82em; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 4px; padding: 0 0.3em; }

    /* ─── RESPONSIVE ────────────────────────────────── */
    @media (max-width: 900px) {
      .spot-inner, .spot-inner.rev { grid-template-columns: 1fr; direction: ltr; gap: 2.5rem; }
      .spot-inner.rev > * { direction: ltr; }
    }
    @media (max-width: 720px) {
      .nav-links { display: none; }
      .nav-inner { padding: 0 1.25rem; }
      .btn-nav-cta { padding: 0.38rem 0.8rem; font-size: 0.78rem; gap: 0.2rem; }
      .steps { grid-template-columns: 1fr; gap: 2rem; }
      .steps::before { display: none; }
      .p-demo { flex-direction: column; text-align: center; }
      .p-card-inner { grid-template-columns: 1fr; }
      .footer-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
      .hero-devices { flex-direction: column; align-items: center; }
      .mockup-phone { width: 200px; }
      .mockup-laptop { max-width: 100%; }
      .adp-split { grid-template-columns: 1fr; }
      .acc-row { flex-direction: column; }
    }

    /* ─── SLIM HOMEPAGE ─────────────────────────────── */
    .cta-row { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; margin-top: 3.5rem; text-align: center; }
    .cta-note { font-size: 0.8rem; color: var(--text-3); }
    .sol-head { text-align: center; max-width: 660px; margin: 0 auto 5rem; }
    .sol-head h2 { font-size: clamp(1.9rem,3.4vw,2.7rem); font-weight: 700; letter-spacing: -0.025em; line-height: 1.12; margin-bottom: 1rem; }
    .sol-head p { font-size: 1.02rem; color: var(--text-2); line-height: 1.8; font-weight: 300; }
    .sol-head .eyebrow, .page-head .eyebrow { display: block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--brand); margin-bottom: 0.75rem; }
    .pillar + .pillar { margin-top: 7rem; }
    .team-note { text-align: center; margin-top: 2rem; font-size: 0.92rem; color: var(--text-2); }
    .team-note a { color: var(--brand); font-weight: 600; text-decoration: none; }
    .team-note a:hover { text-decoration: underline; }
    .aud-cards { margin-top: 3.5rem; }
    .aud-cards .ft-card { gap: 0.6rem; }
    .page-head { text-align: center; max-width: 680px; margin: 0 auto; padding: 9rem 2rem 2rem; }
    .page-head h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.08; margin-bottom: 1rem; }
    .page-head p { font-size: 1.02rem; color: var(--text-2); line-height: 1.8; font-weight: 300; }
    .btn-nav-cta, .btn-nav-login { white-space: nowrap; }
    @media (max-width: 420px) { .nav-logo { font-size: 0; gap: 0; } .nav-actions { gap: 0.4rem; } }
    @media (max-width: 720px) {
      section { padding: 5rem 1.25rem; }
      .pillar + .pillar { margin-top: 4.5rem; }
      .sol-head { margin-bottom: 3rem; }
      .page-head { padding: 7.5rem 1.25rem 1rem; }
      .lsd-outer, .demo-dark, .demo-light { min-width: 0; max-width: 100%; }
      .hero { padding: calc(68px + 3rem) 1.25rem 5rem; }
      .hero-byline { margin-bottom: 1.75rem; }
      .hero h1 { margin-bottom: 1.75rem; }
      .hero-google-notice { margin-bottom: 3rem; flex-wrap: wrap; padding: 0 0.5rem; }
      .cta-final { padding: 5.5rem 1.25rem; }
    }