/* Ava for Education shared styles (extracted from the page, session 308) */
:root {
      --teal-dark: #294555;
      --teal-mid: #4A8A99;
      --rose: #CC6B97;
      --gold: #FFD700;
      --gold-dark: #D4A800;
      --bg-hero: #0D1B22;
      --bg-dark: #0F1E26;
      --bg-light: #FAFAF7;
      --bg-cream: #F5F3EE;
      --text-light: #E8ECF0;
      --text-muted: #8A9BAA;
      --text-dark: #1A2A33;
      --text-body: #3A4A55;
      --white: #FFFFFF;
      --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      --section-padding: clamp(5rem, 12vw, 9rem) clamp(1.5rem, 5vw, 4rem);
      --max-width: 1140px;
      --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body { font-family: var(--font-body); color: var(--text-dark); background: var(--bg-hero); line-height: 1.7; overflow-x: hidden; }
    img, svg { display: block; max-width: 100%; }
    a { color: inherit; text-decoration: none; }
    h1, h2, h3, h4 { line-height: 1.15; font-weight: 700; }
    h1 { font-size: clamp(2.5rem, 7vw, 4.5rem); letter-spacing: -0.03em; }
    h2 { font-size: clamp(1.8rem, 4.5vw, 3rem); letter-spacing: -0.02em; }
    h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
    p { max-width: 720px; }
    .container { max-width: var(--max-width); margin: 0 auto; width: 100%; }

    /* Reveal */
    .reveal { opacity: 0; transform: translateY(30px); transition: opacity var(--transition-smooth), transform var(--transition-smooth); }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    .reveal-delay-1 { transition-delay: 0.15s; }
    .reveal-delay-2 { transition-delay: 0.3s; }
    .reveal-delay-3 { transition-delay: 0.45s; }

    /* Nav */
    .nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: max(1.1rem, env(safe-area-inset-top)) 1.75rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; background: rgba(13,27,34,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(74,138,153,0.1); flex-wrap: nowrap; }
    .nav-logo { flex-shrink: 0; }
    .nav-logo img { height: 26px; }
    .nav-link { color: var(--text-muted); font-size: 0.85rem; font-weight: 500; transition: color 0.3s; white-space: nowrap; }
    .nav-link:hover { color: var(--gold); }
    @media (max-width: 640px) {
      .nav { padding: 0.85rem 1rem; }
      .nav-logo img { height: 22px; }
      .nav-link { font-size: 0.74rem; }
    }

    /* Hero */
    .hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: var(--section-padding); background: var(--bg-hero); position: relative; overflow: hidden; }
    .hero-orb { position: absolute; border-radius: 50%; filter: blur(100px); pointer-events: none; opacity: 0.3; }
    .hero-orb--teal { width: 500px; height: 500px; background: var(--teal-mid); top: -10%; right: -5%; }
    .hero-orb--rose { width: 400px; height: 400px; background: var(--rose); bottom: -15%; left: -10%; }
    .hero-content { position: relative; z-index: 1; }
    .hero-content h1 { color: var(--white); margin-bottom: 1.5rem; }
    .hero-content h1 span { background: linear-gradient(135deg, var(--gold), var(--teal-mid)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .hero-sub { color: var(--text-muted); font-size: clamp(1.1rem, 2.5vw, 1.4rem); max-width: 700px; margin: 0 auto 2rem; }
    .hero-badge { display: inline-block; padding: 0.5rem 1.5rem; border: 1px solid rgba(255,215,0,0.3); border-radius: 100px; color: var(--gold); font-size: 0.875rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 2rem; }
    .hero-stats { display: flex; gap: 3rem; justify-content: center; margin-top: 3rem; }
    .hero-stat { text-align: center; }
    .hero-stat-number { font-size: 2.5rem; font-weight: 700; color: var(--gold); display: block; }
    .hero-stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; }

    /* Wave dividers */
    .wave-divider { position: relative; width: 100%; line-height: 0; margin-top: -1px; }
    .wave-divider svg { width: 100%; height: 80px; display: block; }
    .wave-divider--dark-to-light { background: var(--bg-hero); }
    .wave-divider--light-to-dark { background: var(--bg-light); }
    .wave-divider--dark-to-cream { background: var(--bg-hero); }
    .wave-divider--cream-to-light { background: var(--bg-cream); }
    .wave-divider--cream-to-dark { background: var(--bg-cream); }

    /* Sections */
    .section-dark { background: var(--bg-hero); color: var(--text-light); padding: var(--section-padding); }
    .section-light { background: var(--bg-light); color: var(--text-dark); padding: var(--section-padding); }
    .section-cream { background: var(--bg-cream); color: var(--text-dark); padding: var(--section-padding); }
    .section-title { text-align: center; margin-bottom: 1rem; }
    .section-sub { text-align: center; color: var(--text-muted); margin: 0 auto 3.5rem; font-size: 1.1rem; }
    .section-dark .section-sub { color: var(--text-muted); }
    .section-light .section-sub, .section-cream .section-sub { color: var(--text-body); }

    /* Replaces grid */
    .replaces-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; margin-bottom: 3rem; }
    .replace-card { background: rgba(74,138,153,0.06); border: 1px solid rgba(74,138,153,0.15); border-radius: 16px; padding: 2rem; transition: transform 0.3s, border-color 0.3s; }
    .replace-card:hover { transform: translateY(-4px); border-color: rgba(74,138,153,0.3); }
    .replace-card h3 { margin-bottom: 0.5rem; color: var(--teal-mid); font-size: 1.1rem; }
    .replace-card .replaces { font-size: 0.8rem; color: var(--rose); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.75rem; }
    .replace-card p { font-size: 0.95rem; color: var(--text-body); }

    /* Role tabs */
    .role-tabs { display: flex; justify-content: center; gap: 0.5rem; margin-bottom: 3rem; flex-wrap: wrap; }
    .role-tab { padding: 0.75rem 2rem; border-radius: 100px; font-size: 0.95rem; font-weight: 600; color: var(--text-muted); background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); cursor: pointer; transition: all 0.3s; }
    .role-tab:hover { color: var(--white); border-color: rgba(255,255,255,0.2); }
    .role-tab.active { color: var(--bg-hero); background: var(--gold); border-color: var(--gold); }
    .role-content { display: none; }
    .role-content.active { display: block; }

    /* App grid */
    .apps-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }
    .app-card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; padding: 1.5rem; transition: all 0.3s; }
    .app-card:hover { background: rgba(255,255,255,0.07); border-color: rgba(74,138,153,0.3); transform: translateY(-2px); }
    .app-card h4 { color: var(--white); font-size: 1.05rem; margin-bottom: 0.4rem; display: flex; align-items: center; gap: 0.5rem; }
    .app-card h4 .app-icon { width: 20px; height: 20px; border-radius: 5px; display: inline-flex; align-items: center; justify-content: center; font-size: 0.7rem; flex-shrink: 0; }
    .app-icon--teal { background: rgba(74,138,153,0.2); color: var(--teal-mid); }
    .app-icon--rose { background: rgba(204,107,151,0.2); color: var(--rose); }
    .app-icon--gold { background: rgba(255,215,0,0.2); color: var(--gold); }
    .app-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.5; }

    /* Comparison table */
    .compare-table { width: 100%; border-collapse: collapse; margin: 2rem 0; }
    .compare-table th { text-align: left; padding: 1rem 1.25rem; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); border-bottom: 2px solid rgba(74,138,153,0.2); }
    .compare-table td { padding: 0.9rem 1.25rem; border-bottom: 1px solid rgba(0,0,0,0.06); font-size: 0.95rem; }
    .compare-table tr:last-child td { border-bottom: none; }
    .compare-table .check { color: var(--teal-mid); font-weight: 700; }
    .compare-table .cross { color: var(--text-muted); }
    .compare-table .highlight-col { background: rgba(74,138,153,0.04); }

    /* Bridge section */
    .bridge-visual { display: grid; grid-template-columns: 1fr auto 1fr; gap: 2rem; align-items: center; margin: 3rem 0; }
    .bridge-side { text-align: center; padding: 2.5rem; border-radius: 20px; }
    .bridge-side h3 { margin-bottom: 0.5rem; }
    .bridge-side p { font-size: 0.9rem; color: var(--text-body); margin: 0 auto; }
    .bridge-school { background: rgba(74,138,153,0.08); border: 1px solid rgba(74,138,153,0.15); }
    .bridge-home { background: rgba(204,107,151,0.08); border: 1px solid rgba(204,107,151,0.15); }
    .bridge-connector { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
    .bridge-connector .ava-dot { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, var(--gold), var(--teal-mid)); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.85rem; color: var(--bg-hero); }
    .bridge-connector .bridge-line { width: 2px; height: 30px; background: rgba(74,138,153,0.3); }

    /* Morning news */
    .news-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; margin: 3rem 0; }
    .news-visual { background: var(--bg-hero); border-radius: 16px; padding: 2rem; border: 1px solid rgba(74,138,153,0.15); }
    .news-visual h4 { color: var(--white); font-size: 1.1rem; margin-bottom: 1rem; }
    .news-visual .news-flow { display: flex; flex-direction: column; gap: 0.75rem; }
    .news-step { display: flex; align-items: center; gap: 1rem; color: var(--text-muted); font-size: 0.9rem; }
    .news-step .step-num { width: 28px; height: 28px; border-radius: 50%; background: rgba(255,215,0,0.15); color: var(--gold); font-size: 0.75rem; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .news-text h3 { color: var(--text-dark); margin-bottom: 1rem; }
    .news-text p { color: var(--text-body); font-size: 0.95rem; margin-bottom: 1rem; }

    /* CTA */
    .cta-section { text-align: center; padding: clamp(4rem, 10vw, 8rem) 2rem; }
    .cta-btn { display: inline-block; padding: 1rem 2.5rem; background: linear-gradient(135deg, var(--gold), var(--gold-dark)); color: var(--bg-hero); font-weight: 700; font-size: 1rem; border-radius: 100px; transition: transform 0.3s, box-shadow 0.3s; }
    .cta-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,215,0,0.25); }
    .cta-note { color: var(--text-muted); font-size: 0.9rem; margin-top: 1rem; }

    /* Footer */
    .site-footer { padding: 2.5rem clamp(1.5rem, 5vw, 4rem); text-align: center; color: var(--text-muted); font-size: 0.9rem; background: var(--bg-light); border-top: 1px solid rgba(74,138,153,0.15); }
    .footer-links { display: flex; justify-content: center; gap: 2rem; margin-bottom: 1rem; flex-wrap: wrap; }
    .footer-links a { color: var(--text-body); font-size: 0.85rem; transition: color 0.3s; }
    .footer-links a:hover { color: var(--teal-mid); }
    .footer-copy { color: var(--text-body); font-size: 0.8rem; opacity: 0.6; margin-top: 0.5rem; }

    /* Canvas frame mockup */
    .canvas-frame { background: var(--bg-hero); border-radius: 24px; border: 1px solid rgba(74,138,153,0.12); overflow: hidden; position: relative; }
    .canvas-atmosphere { position: absolute; inset: 0; z-index: 0; opacity: 0.4; pointer-events: none; }
    .canvas-atmosphere--morning { background: linear-gradient(135deg, rgba(74,138,153,0.15), rgba(255,215,0,0.08)); }
    .canvas-atmosphere--teaching { background: linear-gradient(135deg, rgba(74,138,153,0.2), rgba(204,107,151,0.08)); }
    .canvas-atmosphere--homework { background: linear-gradient(135deg, rgba(255,215,0,0.1), rgba(74,138,153,0.1)); }
    .canvas-content { position: relative; z-index: 1; padding: 1.75rem; }

    /* Ava presence in canvas */
    .canvas-ava-presence { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 1.5rem; }
    .canvas-ava-orb { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--gold), var(--teal-mid)); flex-shrink: 0; position: relative; }
    .canvas-ava-orb::after { content: ''; position: absolute; inset: -4px; border-radius: 50%; border: 2px solid rgba(255,215,0,0.2); animation: ava-pulse 3s ease-in-out infinite; }
    .canvas-ava-orb--teaching { background: linear-gradient(135deg, var(--teal-mid), var(--rose)); }
    @keyframes ava-pulse { 0%, 100% { opacity: 0.3; transform: scale(1); } 50% { opacity: 0.7; transform: scale(1.1); } }
    .canvas-narration { color: var(--text-light); font-size: 0.95rem; line-height: 1.6; padding: 0.75rem 1rem; background: rgba(255,255,255,0.04); border-radius: 14px; border: 1px solid rgba(255,255,255,0.06); flex: 1; font-style: italic; }
    .canvas-ava-mini { width: 24px; height: 24px; border-radius: 50%; background: linear-gradient(135deg, var(--gold), var(--teal-mid)); flex-shrink: 0; }

    /* Canvas blocks */
    .canvas-blocks { display: flex; flex-direction: column; gap: 1rem; }
    .canvas-block { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06); border-radius: 16px; padding: 1.25rem; }
    .canvas-block-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--teal-mid); margin-bottom: 0.75rem; }

    /* Schedule block */
    .schedule-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.5rem 0; border-bottom: 1px solid rgba(255,255,255,0.03); font-size: 0.9rem; color: var(--text-muted); }
    .schedule-item:last-child { border-bottom: none; }
    .schedule-item--ava { color: var(--text-light); }
    .schedule-time { font-size: 0.8rem; color: var(--text-muted); width: 65px; flex-shrink: 0; font-weight: 500; }
    .schedule-text { flex: 1; }
    .schedule-tag { font-size: 0.7rem; font-weight: 600; padding: 0.15rem 0.5rem; border-radius: 6px; margin-left: 0.5rem; }
    .schedule-tag--action { background: rgba(255,215,0,0.12); color: var(--gold); }
    .schedule-tag--test { background: rgba(204,107,151,0.12); color: var(--rose); }

    /* Mastery block */
    .mastery-row { display: flex; align-items: center; gap: 0.75rem; padding: 0.5rem 0; border-bottom: 1px solid rgba(255,255,255,0.03); }
    .mastery-row:last-child { border-bottom: none; }
    .mastery-subject { font-size: 0.85rem; color: var(--text-light); width: 100px; }
    .mastery-dots { display: flex; gap: 4px; flex: 1; }
    .mastery-dot { width: 20px; height: 8px; border-radius: 4px; }
    .mastery-dot--mastered { background: var(--teal-mid); }
    .mastery-dot--learning { background: var(--gold); }
    .mastery-dot--struggling { background: var(--rose); }
    .mastery-dot--unseen { background: rgba(255,255,255,0.06); }
    .mastery-level { font-size: 0.75rem; font-weight: 600; color: var(--teal-mid); width: 80px; text-align: right; }
    .mastery-level--warn { color: var(--rose); }
    .mastery-level--good { color: var(--teal-mid); }

    /* Callout block */
    .canvas-block--callout { display: flex; gap: 0.75rem; align-items: flex-start; background: rgba(74,138,153,0.06); border-color: rgba(74,138,153,0.12); color: var(--text-muted); font-size: 0.9rem; line-height: 1.5; }

    /* Whiteboard block */
    .canvas-block--whiteboard { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.1); }
    .whiteboard-content { padding: 1rem 0; }
    .wb-diagram { display: flex; align-items: center; justify-content: center; gap: 0.5rem; flex-wrap: wrap; }
    .wb-node { padding: 0.75rem 1.25rem; border-radius: 12px; background: rgba(74,138,153,0.1); border: 1px solid rgba(74,138,153,0.2); color: var(--text-light); font-size: 0.9rem; text-align: center; transition: all 0.3s; }
    .wb-node--highlighted { background: rgba(255,215,0,0.15); border-color: rgba(255,215,0,0.4); box-shadow: 0 0 20px rgba(255,215,0,0.1); }
    .wb-node--dimmed { opacity: 0.35; }
    .wb-energy { display: block; font-size: 0.75rem; color: var(--gold); font-weight: 700; margin-top: 0.2rem; }
    .wb-arrow { color: var(--teal-mid); font-size: 1.3rem; }
    .wb-arrow--dimmed { opacity: 0.25; }
    .wb-pointer { text-align: center; margin-top: 0.75rem; font-size: 0.8rem; color: var(--text-muted); }

    /* Prompt block */
    .canvas-block--prompt { display: flex; gap: 0.75rem; align-items: flex-start; background: rgba(204,107,151,0.04); border-color: rgba(204,107,151,0.1); }
    .prompt-text { color: var(--text-light); font-size: 0.95rem; line-height: 1.5; margin-bottom: 0.75rem; }
    .prompt-actions { display: flex; gap: 0.5rem; }
    .prompt-btn { padding: 0.5rem 1rem; border-radius: 10px; font-size: 0.8rem; font-weight: 600; }
    .prompt-btn--answer { background: rgba(74,138,153,0.15); border: 1px solid rgba(74,138,153,0.3); color: var(--teal-mid); }
    .prompt-btn--hint { background: rgba(255,215,0,0.1); border: 1px solid rgba(255,215,0,0.2); color: var(--gold); }

    /* Progress bar */
    .canvas-progress { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,0.04); display: flex; align-items: center; gap: 1rem; }
    .progress-label { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; }
    .progress-steps { display: flex; gap: 0.25rem; flex: 1; }
    .progress-step { padding: 0.3rem 0.75rem; border-radius: 8px; font-size: 0.7rem; font-weight: 600; color: var(--text-muted); background: rgba(255,255,255,0.03); }
    .progress-step--done { background: rgba(74,138,153,0.15); color: var(--teal-mid); }
    .progress-step--active { background: rgba(255,215,0,0.15); color: var(--gold); }

    /* Homework block */
    .hw-problem { display: flex; gap: 0.75rem; align-items: flex-start; padding: 0.75rem 0; border-bottom: 1px solid rgba(255,255,255,0.03); }
    .hw-problem:last-of-type { border-bottom: none; }
    .hw-problem--priority { background: rgba(255,215,0,0.03); margin: 0 -0.5rem; padding: 0.75rem 0.5rem; border-radius: 8px; border-bottom: none; }
    .hw-num { width: 32px; height: 32px; border-radius: 8px; background: rgba(74,138,153,0.1); color: var(--teal-mid); font-size: 0.75rem; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .hw-problem--priority .hw-num { background: rgba(255,215,0,0.15); color: var(--gold); }
    .hw-detail { flex: 1; }
    .hw-text { color: var(--text-light); font-size: 0.9rem; margin-bottom: 0.25rem; }
    .hw-tags { display: flex; gap: 0.35rem; flex-wrap: wrap; }
    .hw-tag { font-size: 0.65rem; font-weight: 600; padding: 0.15rem 0.5rem; border-radius: 5px; text-transform: uppercase; letter-spacing: 0.04em; }
    .hw-tag--test { background: rgba(204,107,151,0.12); color: var(--rose); }
    .hw-tag--weak { background: rgba(255,215,0,0.12); color: var(--gold); }
    .hw-tag--strong { background: rgba(74,138,153,0.12); color: var(--teal-mid); }
    .hw-remaining { font-size: 0.8rem; color: var(--text-muted); padding-top: 0.5rem; text-align: center; }

    /* Parent mockup */
    .parent-mockup { max-width: 480px; margin: 0 auto; background: var(--bg-hero); border-radius: 24px; border: 1px solid rgba(74,138,153,0.12); overflow: hidden; }
    .parent-topbar { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.25rem; border-bottom: 1px solid rgba(255,255,255,0.06); }
    .mock-ava-dot { width: 28px; height: 28px; border-radius: 50%; background: linear-gradient(135deg, var(--gold), var(--teal-mid)); }
    .parent-greeting { padding: 1.25rem 1.25rem 0.5rem; font-size: 1.1rem; font-weight: 600; color: var(--white); }
    .parent-card { margin: 0.75rem 1.25rem; padding: 1rem; border-radius: 14px; background: rgba(255,255,255,0.03); border: 1px solid rgba(74,138,153,0.1); }
    .parent-card-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--teal-mid); margin-bottom: 0.75rem; }
    .parent-progress-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.5rem; }
    .parent-progress-row:last-child { margin-bottom: 0; }
    .parent-subject { font-size: 0.85rem; color: var(--text-muted); width: 60px; }
    .parent-bar { flex: 1; height: 6px; background: rgba(255,255,255,0.06); border-radius: 3px; overflow: hidden; }
    .parent-bar-fill { height: 100%; border-radius: 3px; }
    .parent-score { font-size: 0.8rem; color: var(--text-muted); width: 85px; text-align: right; }
    .parent-ava-msg { display: flex; gap: 0.75rem; padding: 0.75rem 1.25rem; align-items: flex-start; }
    .parent-bubble { background: rgba(74,138,153,0.08); border: 1px solid rgba(74,138,153,0.12); border-radius: 14px; padding: 0.75rem 1rem; font-size: 0.85rem; color: var(--text-muted); line-height: 1.5; }
    .parent-session-row { display: flex; justify-content: space-between; padding: 0.4rem 0; font-size: 0.85rem; color: var(--text-light); border-bottom: 1px solid rgba(255,255,255,0.03); }
    .parent-session-row:last-child { border-bottom: none; }
    .parent-school-item { padding: 0.35rem 0; font-size: 0.85rem; color: var(--text-muted); border-bottom: 1px solid rgba(255,255,255,0.03); }
    .parent-school-item:last-child { border-bottom: none; }

    /* UI Mockup frames */
    .mockup-frame { background: var(--bg-hero); border-radius: 20px; border: 1px solid rgba(74,138,153,0.12); overflow: hidden; }
    .mockup-toolbar { display: flex; justify-content: space-between; align-items: center; padding: 0.75rem 1.25rem; border-bottom: 1px solid rgba(255,255,255,0.06); background: rgba(255,255,255,0.02); }
    .mockup-body { padding: 1.5rem; }
    .mockup-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.25rem; }
    .mockup-action-btn { display: flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1.25rem; border-radius: 12px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); color: var(--text-muted); font-size: 0.9rem; font-weight: 500; transition: all 0.3s; }
    .mockup-action--primary { background: rgba(74,138,153,0.15); border-color: rgba(74,138,153,0.3); color: var(--teal-mid); }
    .mockup-status { display: flex; gap: 1.5rem; flex-wrap: wrap; }
    .mockup-status-item { font-size: 0.8rem; color: var(--text-muted); display: flex; align-items: center; gap: 0.4rem; }
    .status-dot { width: 8px; height: 8px; border-radius: 50%; }
    .status-dot--green { background: #4ade80; }
    .status-dot--blue { background: var(--teal-mid); }
    .mockup-panel { padding: 1rem; background: rgba(255,255,255,0.02); border-radius: 12px; border: 1px solid rgba(255,255,255,0.04); }
    .mockup-panel-label { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 0.5rem; }
    .mockup-panel-stat { font-size: 0.95rem; color: var(--text-light); }
    .mockup-quick-actions { display: flex; flex-direction: column; gap: 0.4rem; }
    .mockup-quick-btn { display: inline-block; padding: 0.4rem 0.75rem; border-radius: 8px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.06); font-size: 0.8rem; color: var(--text-muted); text-align: center; }
    .mockup-quick--red { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.2); color: #ef4444; }

    /* Pilot product cards */
    .pilots-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 2rem; margin: 2rem 0; }
    .pilot-card { display: block; padding: 2.25rem; border-radius: 20px; background: var(--white); border: 1px solid rgba(0,0,0,0.08); box-shadow: 0 18px 40px rgba(0,0,0,0.08); transition: transform 0.4s cubic-bezier(0.16,1,0.3,1), box-shadow 0.4s, border-color 0.3s; position: relative; overflow: hidden; }
    .pilot-card:hover { transform: translateY(-6px); box-shadow: 0 28px 60px rgba(0,0,0,0.14); border-color: rgba(74,138,153,0.3); }
    .pilot-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 6px; }
    .pilot-card--display::before { background: linear-gradient(90deg, var(--teal-mid), var(--gold)); }
    .pilot-card--classroom::before { background: linear-gradient(90deg, var(--rose), var(--gold)); }
    .pilot-status { display: inline-block; padding: 4px 12px; border-radius: 100px; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 1rem; }
    .pilot-card--display .pilot-status { background: rgba(74,138,153,0.15); color: var(--teal-mid); }
    .pilot-card--classroom .pilot-status { background: rgba(204,107,151,0.15); color: var(--rose); }
    .pilot-card h3 { font-size: 1.65rem; color: var(--text-dark); margin-bottom: 0.4rem; }
    .pilot-tagline { font-size: 1.05rem; color: var(--text-body); font-weight: 600; margin-bottom: 1rem; font-style: italic; }
    .pilot-card p { color: var(--text-body); margin-bottom: 1.25rem; font-size: 0.95rem; line-height: 1.65; }
    .pilot-meta { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.25rem; }
    .pilot-meta span { font-size: 0.7rem; padding: 4px 10px; background: var(--bg-cream); border-radius: 100px; color: var(--text-body); font-weight: 600; letter-spacing: 0.02em; }
    .pilot-cta { color: var(--teal-mid); font-weight: 700; font-size: 0.95rem; transition: color 0.3s; }
    .pilot-card--classroom .pilot-cta { color: var(--rose); }
    .pilot-card:hover .pilot-cta { color: var(--gold-dark); }

    /* Responsive */
    @media (max-width: 768px) {
      .hero-stats { flex-direction: column; gap: 1.5rem; }
      .bridge-visual { grid-template-columns: 1fr; }
      .bridge-connector { flex-direction: row; }
      .bridge-connector .bridge-line { width: 30px; height: 2px; }
      .news-feature { grid-template-columns: 1fr; }
      .replaces-grid { grid-template-columns: 1fr; }
      .pilots-grid { grid-template-columns: 1fr; }
      .mockup-body { grid-template-columns: 1fr !important; }
      .mockup-actions { flex-direction: column; }
    }
      @media (max-width: 640px) {
      .hero { min-height: auto !important; padding-top: calc(env(safe-area-inset-top, 0px) + 5.5rem) !important; padding-bottom: 3rem !important; }
      .hero h1 { font-size: clamp(1.9rem, 8vw, 2.6rem) !important; }
    }
  
    /* Mobile safety: ensure content shows even if IntersectionObserver doesn't fire */
    .reveal { animation: reveal-fallback 0.6s ease-out 0.4s forwards; }
    .reveal.visible { animation: none; }
    @keyframes reveal-fallback { to { opacity: 1; transform: translateY(0); } }
    @media (prefers-reduced-motion: reduce) {
      .reveal { opacity: 1 !important; transform: none !important; animation: none !important; transition: none !important; }
    }
  
    /* Bulletproof mobile header: nav scrolls with page, never overlaps hero */
    @media (max-width: 768px) {
      .nav { position: static !important; padding: 0.85rem 1rem !important; }
      .hero { min-height: auto !important; padding-top: 1.5rem !important; padding-bottom: 3rem !important; }
      .hero h1 { font-size: clamp(1.95rem, 8vw, 2.6rem) !important; }
      .hero-badge { white-space: nowrap; }
      .hero-badge span { white-space: nowrap; }
    }
    .kicker { display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:.16em; text-transform:uppercase; color:var(--gold); margin-bottom:.55rem; }
    .kicker--classroom { color:var(--rose); }
    .kicker--bridge { color:var(--teal-mid); }
    .kicker--proof { color:var(--text-muted); }
    .spine-note { max-width:780px; margin:1.75rem auto 0; color:var(--text-body); text-align:center; line-height:1.7; }