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

    :root {
      --bg: #f4f2ee;
      --white: #ffffff;
      --text: #12151f;
      --text-2: #444c5e;
      --text-3: #8891a6;
      --accent: #1847e3;
      --accent-hover: #1238c0;
      --accent-light: #eef1fd;
      --accent-muted: #c7d0f9;
      --border: #e0dcd4;
      --border-light: #ebebee;
      --shadow: 0 1px 3px rgba(18,21,31,.06);
      --shadow-md: 0 8px 32px rgba(18,21,31,.10);
      --shadow-lg: 0 24px 64px rgba(18,21,31,.14);
      --radius: 10px;
      --radius-lg: 16px;
      --radius-pill: 100px;
    }

    html { font-size: 16px; scroll-behavior: smooth; }
    body {
      font-family: 'Onest', sans-serif;
      background: var(--bg);
      color: var(--text);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    /* ── NAV ── */
    .nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      height: 60px;
      background: rgba(244,242,238,.88);
      backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
      display: flex; align-items: center;
      padding: 0 24px; gap: 12px;
    }
    .nav-logo {
      font-family: 'Geologica', sans-serif;
      font-size: 16px; font-weight: 700;
      letter-spacing: -0.04em;
      color: var(--text); text-decoration: none;
      flex-shrink: 0;
    }
    .nav-logo span { color: var(--accent); }
    .nav-spacer { flex: 1; }
    .nav-links { display: none; align-items: center; gap: 4px; }
    .nav-link {
      font-size: 14px; font-weight: 500; color: var(--text-2);
      text-decoration: none; padding: 6px 14px;
      border-radius: var(--radius-pill);
      transition: background .15s, color .15s;
    }
    .nav-link:hover { background: var(--accent-light); color: var(--accent); }
    .btn-nav {
      font-family: 'Onest', sans-serif; font-size: 14px; font-weight: 600;
      padding: 8px 18px; border-radius: var(--radius-pill); border: none;
      cursor: pointer; transition: background .15s;
      text-decoration: none; display: inline-flex; align-items: center;
    }
    .btn-nav-ghost { background: none; color: var(--text-2); border: 1px solid var(--border); }
    .btn-nav-ghost:hover { background: var(--white); }
    .btn-nav-primary { background: var(--accent); color: var(--white); }
    .btn-nav-primary:hover { background: var(--accent-hover); }

    a.avatar { 
      text-decoration: none;  
    }

    .nav-avatar {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        background: var(--accent-light);
        border: 2px solid var(--accent-muted);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 11px;
        font-weight: 700;
        color: var(--accent);
        cursor: pointer;
        flex-shrink: 0;
        letter-spacing: -.02em;
    }

    @media (min-width: 768px) { .nav-links { display: flex; } }

    /* ── HERO ── */
    .hero {
      padding: 140px 24px 80px;
      text-align: center;
      max-width: 860px;
      margin: 0 auto;
    }

    .hero-eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      font-size: 13px; font-weight: 600; color: var(--accent);
      background: var(--accent-light); border: 1px solid var(--accent-muted);
      border-radius: var(--radius-pill); padding: 4px 14px;
      margin-bottom: 28px;
      letter-spacing: .02em;
    }
    .hero-eyebrow::before {
      content: '';
      width: 6px; height: 6px; border-radius: 50%;
      background: var(--accent); flex-shrink: 0;
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: .5; transform: scale(.8); }
    }

    .hero-title {
      font-family: 'Geologica', sans-serif;
      font-size: clamp(36px, 7vw, 72px);
      font-weight: 900;
      letter-spacing: -0.04em;
      line-height: 1.05;
      color: var(--text);
      margin-bottom: 24px;
    }
    .hero-title .accent { color: var(--accent); }
    .hero-title .muted { color: var(--text-3); }

    .hero-desc {
      font-size: clamp(16px, 2.2vw, 20px);
      color: var(--text-2);
      line-height: 1.6;
      max-width: 560px;
      margin: 0 auto 40px;
    }

    .hero-cta {
      display: flex; align-items: center; justify-content: center;
      gap: 12px; flex-wrap: wrap;
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      font-family: 'Onest', sans-serif; font-weight: 600;
      border-radius: var(--radius-pill); border: none;
      cursor: pointer; transition: background .15s, box-shadow .15s;
      text-decoration: none;
    }
    .btn-primary {
      font-size: 16px; padding: 13px 28px;
      background: var(--accent); color: var(--white);
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      box-shadow: 0 4px 16px rgba(24,71,227,.3);
    }
    .btn-ghost-lg {
      font-size: 16px; padding: 12px 28px;
      background: var(--white); color: var(--text);
      border: 1px solid var(--border);
    }
    .btn-ghost-lg:hover { background: var(--bg); }

    .hero-note {
      margin-top: 20px;
      font-size: 13px; color: var(--text-3);
    }

    /* ── FORMULA ── */
    .formula {
      text-align: center;
      padding: 20px 24px 64px;
    }
    .formula-inner {
      display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap;
      justify-content: center;
      background: var(--white); border: 1px solid var(--border);
      border-radius: var(--radius-lg); padding: 16px 24px;
      box-shadow: var(--shadow);
    }
    .formula-item {
      font-family: 'Geologica', sans-serif;
      font-size: 15px; font-weight: 700; letter-spacing: -0.02em;
      color: var(--text-2);
    }
    .formula-plus {
      font-size: 18px; color: var(--border);
      font-weight: 300;
    }
    .formula-eq { font-size: 16px; color: var(--text-3); font-weight: 500; margin: 0 4px; }
    .formula-result {
      font-family: 'Geologica', sans-serif;
      font-size: 15px; font-weight: 700; letter-spacing: -0.02em;
      color: var(--accent);
    }

    /* ── STAGES ── */
    .section { padding: 64px 24px; }
    .section-inner { max-width: 1000px; margin: 0 auto; }

    .section-label {
      font-size: 12px; font-weight: 700; color: var(--accent);
      text-transform: uppercase; letter-spacing: .1em;
      margin-bottom: 12px; text-align: center;
    }
    .section-title {
      font-family: 'Geologica', sans-serif;
      font-size: clamp(26px, 4vw, 40px);
      font-weight: 800; letter-spacing: -0.03em;
      text-align: center; margin-bottom: 12px;
      line-height: 1.15;
    }
    .section-desc {
      font-size: 17px; color: var(--text-2); text-align: center;
      max-width: 520px; margin: 0 auto 48px; line-height: 1.6;
    }

    .stages {
      display: flex; flex-direction: column; gap: 10px;
      position: relative;
    }
    @media (min-width: 640px) {
      .stages { flex-direction: row; align-items: flex-start; gap: 8px; }
    }

    .stage-card {
      flex: 1; background: var(--white);
      border: 1px solid var(--border); border-radius: var(--radius);
      box-shadow: var(--shadow); padding: 18px 16px;
      text-align: center; position: relative;
      transition: box-shadow .2s, transform .2s;
    }
    .stage-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

    .stage-num {
      width: 28px; height: 28px; border-radius: 50%;
      background: var(--accent-light); color: var(--accent);
      font-size: 12px; font-weight: 700;
      display: flex; align-items: center; justify-content: center;
      margin: 0 auto 10px;
    }
    .stage-icon { font-size: 24px; margin-bottom: 8px; }
    .stage-name {
      font-family: 'Geologica', sans-serif;
      font-size: 13px; font-weight: 700; letter-spacing: -0.01em;
      color: var(--text); margin-bottom: 4px;
    }
    .stage-note { font-size: 12px; color: var(--text-3); line-height: 1.4; }

    .stage-arrow {
      display: none;
      align-items: center; justify-content: center;
      color: var(--text-3); font-size: 18px;
      padding-top: 28px;
      flex-shrink: 0;
    }
    @media (min-width: 640px) { .stage-arrow { display: flex; } }

    /* ── WHO section ── */
    .who-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 12px;
    }
    @media (min-width: 640px) { .who-grid { grid-template-columns: repeat(3, 1fr); } }

    .who-card {
      background: var(--white); border: 1px solid var(--border);
      border-radius: var(--radius-lg); box-shadow: var(--shadow);
      padding: 24px; transition: box-shadow .2s;
    }
    .who-card:hover { box-shadow: var(--shadow-md); }

    .who-icon {
      width: 48px; height: 48px; border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
      font-size: 24px; margin-bottom: 16px;
    }
    .who-title {
      font-family: 'Geologica', sans-serif;
      font-size: 18px; font-weight: 700; letter-spacing: -0.02em;
      margin-bottom: 8px;
    }
    .who-desc { font-size: 14px; color: var(--text-2); line-height: 1.65; }

    .who-features { margin-top: 14px; display: flex; flex-direction: column; gap: 6px; }
    .who-feature {
      display: flex; align-items: center; gap: 8px;
      font-size: 13.5px; color: var(--text-2);
    }
    .who-feature::before {
      content: '→';
      color: var(--accent); font-weight: 700; flex-shrink: 0;
    }

    /* ── EQUITY feature ── */
    .equity-feature {
      background: linear-gradient(135deg, #1847e3 0%, #2d5be3 60%, #6b82f0 100%);
      border-radius: var(--radius-lg);
      padding: 48px 32px;
      display: flex; flex-direction: column; align-items: center;
      text-align: center; gap: 24px;
      position: relative; overflow: hidden;
    }
    .equity-feature::before {
      content: '';
      position: absolute; inset: 0;
      background: radial-gradient(ellipse at 70% 20%, rgba(255,255,255,.08) 0%, transparent 60%);
    }

    .equity-feature-label {
      font-size: 12px; font-weight: 700; color: rgba(255,255,255,.6);
      text-transform: uppercase; letter-spacing: .1em;
    }
    .equity-feature-title {
      font-family: 'Geologica', sans-serif;
      font-size: clamp(26px, 4vw, 40px); font-weight: 800;
      letter-spacing: -0.03em; color: var(--white); line-height: 1.15;
    }
    .equity-feature-desc {
      font-size: 17px; color: rgba(255,255,255,.75); max-width: 500px; line-height: 1.6;
    }

    .equity-demo {
      background: rgba(255,255,255,.1);
      border: 1px solid rgba(255,255,255,.15);
      border-radius: var(--radius-lg);
      padding: 20px 24px;
      width: 100%; max-width: 360px;
      backdrop-filter: blur(8px);
    }
    .equity-demo-label {
      font-size: 11px; font-weight: 700; color: rgba(255,255,255,.6);
      text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px;
    }
    .equity-demo-num {
      font-family: 'Geologica', sans-serif;
      font-size: 36px; font-weight: 700; letter-spacing: -0.04em;
      color: var(--white); line-height: 1; margin-bottom: 12px;
    }
    .equity-demo-num span { font-size: 18px; font-weight: 400; color: rgba(255,255,255,.6); }
    .equity-demo-bar {
      height: 8px; background: rgba(255,255,255,.15); border-radius: 4px; overflow: hidden; margin-bottom: 10px;
    }
    .equity-demo-fill { height: 100%; border-radius: 4px; background: rgba(255,255,255,.8); width: 77%; }
    .equity-demo-legend {
      display: flex; gap: 14px; font-size: 12px; color: rgba(255,255,255,.6);
    }
    .equity-demo-legend-item { display: flex; align-items: center; gap: 5px; }
    .equity-demo-dot { width: 7px; height: 7px; border-radius: 50%; }

    /* ── SCREENS preview ── */
    .screens-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
    }
    @media (min-width: 768px) { .screens-grid { grid-template-columns: repeat(3, 1fr); } }

    .screen-card {
      background: var(--white); border: 1px solid var(--border);
      border-radius: var(--radius); box-shadow: var(--shadow);
      overflow: hidden; transition: box-shadow .2s, transform .2s;
      text-decoration: none; color: inherit; display: block;
    }
    .screen-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

    .screen-preview {
      height: 120px; display: flex; align-items: center; justify-content: center;
      font-size: 36px; border-bottom: 1px solid var(--border-light);
    }
    .screen-info { padding: 12px 14px; }
    .screen-name { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 3px; }
    .screen-desc { font-size: 12px; color: var(--text-3); }

    /* ── CTA bottom ── */
    .cta-bottom {
      padding: 80px 24px;
      text-align: center;
    }
    .cta-bottom-inner {
      max-width: 600px; margin: 0 auto;
      background: var(--white); border: 1px solid var(--border);
      border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
      padding: 48px 32px;
    }
    .cta-bottom-title {
      font-family: 'Geologica', sans-serif;
      font-size: clamp(24px, 4vw, 36px); font-weight: 800;
      letter-spacing: -0.03em; margin-bottom: 12px; line-height: 1.2;
    }
    .cta-bottom-desc {
      font-size: 16px; color: var(--text-2); margin-bottom: 28px; line-height: 1.6;
    }

    /* ── FOOTER ── */
    .footer {
      border-top: 1px solid var(--border);
      padding: 24px;
      display: flex; align-items: center; justify-content: space-between;
      flex-wrap: wrap; gap: 12px;
    }
    .footer-logo {
      font-family: 'Geologica', sans-serif;
      font-size: 14px; font-weight: 700; letter-spacing: -0.03em;
      color: var(--text); text-decoration: none;
    }
    .footer-logo span { color: var(--accent); }
    .footer-note { font-size: 13px; color: var(--text-3); }

    /* ── DIVIDER ── */
    .divider {
      height: 1px; background: var(--border);
      max-width: 1000px; margin: 0 auto;
    }

    /* bg decoration */
    .bg-blob {
      position: fixed; z-index: -1; border-radius: 50%;
      filter: blur(80px); opacity: .35; pointer-events: none;
    }
    .bg-blob-1 { width: 500px; height: 500px; background: #c7d0f9; top: -100px; right: -100px; }
    .bg-blob-2 { width: 400px; height: 400px; background: #dcfce7; bottom: 200px; left: -100px; }