:root {
    --navy: #233349;
    --teal: #34bbc0;
    --teal-light: #5fcdd1;
    --teal-pale: #e8f8f9;
    --orange: #ff873c;
    --orange-light: #ffa05c;
    --orange-pale: #fff4ee;
    --gray-100: #F5F7F9;
    --gray-200: #E2E8ED;
    --gray-500: #6B7A8D;
    --gray-700: #374151;
    --white: #FFFFFF;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }

  body {
    font-family: 'DM Sans', sans-serif;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
  }

  /* STICKY NAV */
  .sticky-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(35,51,73,0.97);
    backdrop-filter: blur(12px);
    padding: 14px 40px;
    display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    animation: slideDown 0.4s ease;
  }
  @keyframes slideDown { from { transform: translateY(-100%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
  .nav-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
  .nav-logo { width: 32px; height: 32px; }
  .nav-wordmark { font-size: 18px; font-weight: 700; color: var(--white); letter-spacing: -0.3px; }
  .nav-wordmark span { color: var(--teal-light); }
  .nav-cta {
    background: var(--orange); color: var(--white);
    padding: 10px 24px; border-radius: 6px;
    font-size: 14px; font-weight: 600; text-decoration: none;
    transition: background 0.2s, transform 0.1s;
    white-space: nowrap;
  }
  .nav-cta:hover { background: var(--orange-light); transform: translateY(-1px); }

  /* HERO */
  .hero {
    background: linear-gradient(160deg, #233349 0%, #1a2840 60%, #2d3f56 100%);
    padding: 130px 40px 80px;
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative; overflow: hidden;
  }
  .hero::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(52,187,192,0.18) 0%, transparent 70%),
                radial-gradient(ellipse 40% 40% at 85% 80%, rgba(255,135,60,0.1) 0%, transparent 60%);
  }
  .hero-grid {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
    align-items: center; position: relative; z-index: 2;
  }
  .hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(52,187,192,0.2); border: 1px solid rgba(52,187,192,0.3);
    color: var(--teal-light); font-size: 13px; font-weight: 500;
    padding: 6px 14px; border-radius: 100px;
    margin-bottom: 24px;
  }
  .hero-badge::before { content: '●'; font-size: 8px; color: #4ade80; animation: pulse 2s infinite; }
  @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
  .hero h1 {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(38px, 5vw, 58px);
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
  }
  .hero h1 em { font-style: italic; color: var(--teal-light); }
  .hero-sub {
    font-size: 18px; color: rgba(255,255,255,0.72); line-height: 1.6;
    margin-bottom: 36px; font-weight: 400;
  }
  .hero-cta-group { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
  .btn-primary {
    background: var(--orange); color: var(--white);
    padding: 16px 36px; border-radius: 8px;
    font-size: 17px; font-weight: 600; text-decoration: none;
    transition: all 0.2s; display: inline-flex; align-items: center; gap: 8px;
    box-shadow: 0 4px 20px rgba(255,135,60,0.4);
  }
  .btn-primary:hover { background: var(--orange-light); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,135,60,0.5); }
  .btn-primary svg { width: 18px; height: 18px; }
  .hero-note { font-size: 13px; color: rgba(255,255,255,0.45); display: flex; align-items: center; gap: 6px; }
  .hero-note::before { content: '🔒'; font-size: 11px; }
  .hero-visual {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px; overflow: hidden;
    box-shadow: 0 24px 60px rgba(0,0,0,0.4);
  }
  .hero-visual-bar {
    background: rgba(255,255,255,0.06);
    padding: 12px 16px; display: flex; align-items: center; gap: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .dot { width: 10px; height: 10px; border-radius: 50%; }
  .dot-r { background: #ff5f57; }
  .dot-y { background: #febc2e; }
  .dot-g { background: #28c840; }
  .hero-visual-title { font-size: 12px; color: rgba(255,255,255,0.4); margin-left: 8px; font-weight: 500; }
  .hero-chat { padding: 24px; }
  .chat-q {
    background: var(--teal); color: white;
    padding: 12px 16px; border-radius: 12px 12px 4px 12px;
    font-size: 14px; margin-left: auto; max-width: 85%;
    margin-bottom: 16px; text-align: right; width: fit-content; float: right; clear: both;
  }
  .chat-a {
    background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.88);
    padding: 14px 16px; border-radius: 4px 12px 12px 12px;
    font-size: 13px; line-height: 1.6; max-width: 90%;
    margin-bottom: 8px; clear: both;
  }
  .chat-a strong { color: var(--teal-light); }
  .chat-meta { font-size: 11px; color: rgba(255,255,255,0.3); padding: 0 2px; clear: both; }
  .chat-input-row {
    margin-top: 20px; display: flex; gap: 8px;
    background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px; padding: 10px 14px; align-items: center;
  }
  .chat-input-placeholder { flex: 1; font-size: 13px; color: rgba(255,255,255,0.3); }
  .chat-send { background: var(--orange); color: white; border: none; padding: 7px 14px; border-radius: 6px; font-size: 12px; font-weight: 600; cursor: pointer; }

  /* LOGOS / SOCIAL PROOF BAR */
  .proof-bar {
    background: var(--gray-100); border-top: 1px solid var(--gray-200);
    padding: 20px 40px; text-align: center;
  }
  .proof-bar p { font-size: 13px; color: var(--gray-500); font-weight: 500; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 14px; }
  .proof-bar-inner { display: flex; align-items: center; justify-content: center; gap: 48px; flex-wrap: wrap; }
  .proof-badge {
    display: flex; align-items: center; gap: 10px;
    background: white; border: 1px solid var(--gray-200); border-radius: 8px;
    padding: 10px 20px;
  }
  .proof-badge-icon { font-size: 22px; }
  .proof-badge-text { font-size: 14px; font-weight: 600; color: var(--navy); }
  .proof-badge-sub { font-size: 12px; color: var(--gray-500); }

  /* SECTIONS */
  section { padding: 96px 40px; }
  .container { max-width: 1100px; margin: 0 auto; }
  .section-label {
    display: inline-flex; align-items: center; gap: 8px;
    color: var(--teal); font-size: 12px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
    margin-bottom: 16px;
  }
  .section-label::before { content: ''; display: block; width: 24px; height: 2px; background: var(--teal); }
  h2.section-title {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(32px, 4vw, 46px); color: var(--navy);
    line-height: 1.15; margin-bottom: 20px; letter-spacing: -0.3px;
  }
  .section-sub { font-size: 17px; color: var(--gray-500); line-height: 1.6; max-width: 580px; }

  /* PROBLEM */
  .problem { background: var(--white); }
  .problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
  .problem-card {
    background: var(--orange-pale); border: 1px solid #FDDCBF;
    border-radius: 12px; padding: 28px 24px;
    border-top: 3px solid var(--orange);
  }
  .problem-icon { font-size: 28px; margin-bottom: 16px; }
  .problem-card h3 { font-size: 17px; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
  .problem-card p { font-size: 14px; color: var(--gray-500); line-height: 1.6; }
  .problem-stat {
    margin-top: 48px; background: linear-gradient(160deg, #233349 0%, #1a2840 60%, #2d3f56 100%); border-radius: 16px;
    padding: 36px 40px; display: flex; align-items: center; gap: 40px;
  }
  .stat-big { font-family: 'DM Serif Display', serif; font-size: 64px; color: var(--orange); line-height: 1; flex-shrink: 0; }
  .stat-text h3 { font-size: 20px; color: var(--white); font-weight: 700; margin-bottom: 8px; }
  .stat-text p { font-size: 15px; color: rgba(255,255,255,0.6); line-height: 1.5; }

  /* HOW IT WORKS */
  .how { background: var(--gray-100); }
  .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 56px; position: relative; }
  .steps::before {
    content: ''; position: absolute; top: 40px; left: 12.5%; right: 12.5%; height: 2px;
    background: linear-gradient(to right, var(--teal), var(--teal-light));
    z-index: 0;
  }
  .step { text-align: center; padding: 0 16px; position: relative; z-index: 1; }
  .step-num {
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--teal); color: white;
    font-size: 20px; font-weight: 700; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px; border: 3px solid white; box-shadow: 0 4px 12px rgba(52,187,192,0.3);
  }
  .step h3 { font-size: 16px; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
  .step p { font-size: 13px; color: var(--gray-500); line-height: 1.6; }
  .step-badge { font-size: 11px; color: var(--teal); font-weight: 600; margin-top: 8px; }

  /* SCREENSHOTS */
  .screenshots { background: var(--white); }
  .screenshot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-top: 56px; }
  .screenshot-card { border: 1px solid var(--gray-200); border-radius: 16px; overflow: hidden; box-shadow: 0 8px 32px rgba(0,0,0,0.08); }
  .screenshot-header {
    background: linear-gradient(160deg, #233349 0%, #1a2840 60%, #2d3f56 100%); padding: 12px 16px;
    display: flex; align-items: center; gap: 8px;
  }
  .screenshot-title { font-size: 12px; color: rgba(255,255,255,0.6); font-weight: 500; flex: 1; }
  .screenshot-body { padding: 20px; background: white; min-height: 280px; }
  .screenshot-caption { padding: 16px 20px; background: var(--gray-100); border-top: 1px solid var(--gray-200); font-size: 13px; color: var(--gray-500); line-height: 1.5; }
  .screenshot-caption strong { color: var(--navy); }

  /* Simulated UI */
  .sop-row { display: flex; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--gray-100); gap: 12px; }
  .sop-check { color: #22c55e; font-size: 16px; flex-shrink: 0; }
  .sop-name { font-size: 13px; color: var(--navy); font-weight: 500; flex: 1; }
  .sop-dept { font-size: 11px; color: var(--teal); background: var(--teal-pale); padding: 2px 8px; border-radius: 100px; }
  .sop-date { font-size: 11px; color: var(--gray-500); }

  .msg-row { display: flex; margin-bottom: 12px; }
  .msg-row.right { justify-content: flex-end; }
  .msg-bubble { padding: 10px 14px; border-radius: 12px; max-width: 85%; font-size: 13px; line-height: 1.5; }
  .msg-bubble.user { background: var(--teal); color: white; border-radius: 12px 12px 4px 12px; }
  .msg-bubble.ai { background: var(--gray-100); color: var(--navy); border-radius: 4px 12px 12px 12px; }
  .msg-bubble.ai ol { padding-left: 16px; margin-top: 6px; }
  .msg-bubble.ai li { margin-bottom: 3px; }

  /* BETA OFFER */
  .beta { background: linear-gradient(160deg, #233349 0%, #1a2840 60%, #2d3f56 100%); color: white; }
  .beta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
  .beta h2 { color: white; }
  .beta .section-label { color: var(--orange); }
  .beta .section-label::before { background: var(--orange); }
  .beta-body { font-size: 16px; color: rgba(255,255,255,0.7); line-height: 1.7; margin: 20px 0 32px; }
  .feature-list { list-style: none; margin-bottom: 32px; }
  .feature-list li { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.08); font-size: 15px; color: rgba(255,255,255,0.85); display: flex; align-items: center; gap: 12px; }
  .feature-list li::before { content: '✓'; color: var(--teal-light); font-weight: 700; font-size: 16px; flex-shrink: 0; }
  .beta-card {
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px; padding: 40px; text-align: center;
  }
  .beta-card h3 { font-family: 'DM Serif Display', serif; font-size: 28px; color: white; margin-bottom: 8px; }
  .beta-card .price { font-size: 52px; font-weight: 700; color: var(--orange); line-height: 1; margin: 16px 0 4px; }
  .beta-card .price span { font-size: 20px; font-weight: 400; color: rgba(255,255,255,0.5); }
  .beta-card .setup { font-size: 13px; color: rgba(255,255,255,0.45); margin-bottom: 24px; }
  .beta-card .founding { background: var(--orange); color: white; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 100px; display: inline-block; margin-bottom: 24px; }
  .btn-cta-white {
    display: block; background: white; color: var(--navy);
    padding: 15px 32px; border-radius: 8px; font-size: 16px; font-weight: 700;
    text-decoration: none; transition: all 0.2s;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  }
  .btn-cta-white:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }
  .beta-card-note { font-size: 12px; color: rgba(255,255,255,0.35); margin-top: 12px; }

  /* FINAL CTA */
  .final-cta {
    background: linear-gradient(135deg, var(--teal) 0%, #005F66 100%);
    text-align: center; padding: 96px 40px;
  }
  .final-cta h2 { font-family: 'DM Serif Display', serif; font-size: clamp(32px, 4vw, 48px); color: white; margin-bottom: 16px; }
  .final-cta p { font-size: 18px; color: rgba(255,255,255,0.75); margin-bottom: 40px; max-width: 480px; margin-left: auto; margin-right: auto; line-height: 1.6; }
  .btn-cta-orange {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--orange); color: white;
    padding: 18px 44px; border-radius: 8px; font-size: 18px; font-weight: 700;
    text-decoration: none; transition: all 0.2s;
    box-shadow: 0 6px 24px rgba(255,135,60,0.45);
  }
  .btn-cta-orange:hover { background: var(--orange-light); transform: translateY(-2px); }
  .final-cta-sub { margin-top: 20px; font-size: 14px; color: rgba(255,255,255,0.5); }
  .founder-sig { margin-top: 40px; display: flex; align-items: center; justify-content: center; gap: 12px; }
  .founder-avatar { width: 44px; height: 44px; border-radius: 50%; background: rgba(255,255,255,0.15); display: flex; align-items: center; justify-content: center; font-size: 18px; }
  .founder-info { text-align: left; }
  .founder-name { font-size: 14px; color: white; font-weight: 600; }
  .founder-title { font-size: 12px; color: rgba(255,255,255,0.5); }
  .founder-email { font-size: 12px; color: var(--teal-light); }

  /* FOOTER */
  footer { background: linear-gradient(160deg, #233349 0%, #1a2840 60%, #2d3f56 100%); padding: 32px 40px; border-top: 1px solid rgba(255,255,255,0.08); }
  .footer-inner { max-width: 1100px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
  .footer-brand { font-size: 16px; font-weight: 700; color: white; }
  .footer-brand span { color: var(--teal-light); }
  .footer-links { display: flex; gap: 24px; }
  .footer-links a { font-size: 13px; color: rgba(255,255,255,0.45); text-decoration: none; }
  .footer-links a:hover { color: rgba(255,255,255,0.8); }
  .footer-copy { font-size: 12px; color: rgba(255,255,255,0.25); }

  /* ANNOTATIONS */
  .annotation {
    position: relative; display: inline-block;
  }
  .ann-tag {
    position: absolute; top: -28px; left: 50%; transform: translateX(-50%);
    background: var(--orange); color: white; font-size: 10px; font-weight: 700;
    padding: 3px 8px; border-radius: 4px; white-space: nowrap; letter-spacing: 0.05em;
    text-transform: uppercase;
  }
  .ann-tag::after { content: ''; position: absolute; top: 100%; left: 50%; transform: translateX(-50%); border: 4px solid transparent; border-top-color: var(--orange); }

  /* DESIGN SPEC NOTE */
  .spec-note {
    position: fixed; bottom: 20px; right: 20px; z-index: 200;
    background: linear-gradient(160deg, #233349 0%, #1a2840 60%, #2d3f56 100%); color: white; border-radius: 10px;
    padding: 14px 18px; font-size: 12px; max-width: 220px;
    border: 1px solid rgba(52,187,192,0.4); box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  }
  .spec-note strong { color: var(--teal-light); display: block; margin-bottom: 4px; }

  @media (max-width: 768px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .problem-grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr 1fr; }
    .steps::before { display: none; }
    .screenshot-grid { grid-template-columns: 1fr; }
    .beta-inner { grid-template-columns: 1fr; }
    .problem-stat { flex-direction: column; text-align: center; gap: 20px; }
  }