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

    :root {
      --bg: #ffffff;
      --bg-2: #f7f7f5;
      --bg-3: #f0f0ed;
      --text: #111110;
      --text-2: #6b6b66;
      --text-3: #a8a89f;
      --line: #e4e4e0;
      --line-2: #cececa;
      --blue: #2563eb;
      --blue-bg: #eff6ff;
      --green: #15803d;
      --red: #dc2626;
      --red-bg: #fef2f2;
      --green-bg: #f0fdf4;
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'Inter', -apple-system, sans-serif;
      background: var(--bg);
      color: var(--text);
      font-size: 15px;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    .wrap { max-width: 1060px; margin: 0 auto; padding: 0 40px; }

    /* NAV */
    nav {
      position: sticky; top: 0; z-index: 10;
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--line);
    }
    .nav-inner {
      display: flex; align-items: center;
      justify-content: space-between; height: 96px;
    }
    .logo img { height: 84px; width: auto; display: block; }
    .nav-links { display: flex; gap: 32px; list-style: none; }
    .nav-links a {
      font-size: 13px; color: var(--text-2); text-decoration: none;
      letter-spacing: 0.01em; transition: color 0.15s;
    }
    .nav-links a:hover { color: var(--text); }

    /* HERO */
    .hero {
      padding: 96px 0 80px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px; align-items: center;
      border-bottom: 1px solid var(--line);
    }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      font-size: 11px; font-weight: 500; letter-spacing: 0.1em;
      text-transform: uppercase; color: var(--text-3); margin-bottom: 24px;
    }
    .eyebrow::before {
      content: ''; display: block;
      width: 20px; height: 1px; background: var(--line-2);
    }
    .hero h1 {
      font-size: clamp(26px, 3.6vw, 40px);
      font-weight: 500; letter-spacing: -0.04em;
      line-height: 1.18; color: var(--text); margin-bottom: 20px;
    }
    .hero h1 em { font-style: italic; color: var(--text-2); }
    .hero-sub {
      font-size: 15px; color: var(--text-2);
      line-height: 1.75; max-width: 400px;
    }
    .hero-stats {
      display: grid; grid-template-columns: 1fr 1fr;
      gap: 1px; background: var(--line);
      border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
    }
    .stat-cell { background: var(--bg); padding: 24px 22px; }
    .stat-num {
      font-size: 26px; font-weight: 500; letter-spacing: -0.04em;
      color: var(--text); line-height: 1; margin-bottom: 6px;
    }
    .stat-label { font-size: 12px; color: var(--text-3); }

    /* SECTIONS */
    .section {
      padding: 80px 0;
      border-bottom: 1px solid var(--line);
      display: grid;
      grid-template-columns: 180px 1fr;
      gap: 80px;
    }
    .side-label {
      font-size: 11px; font-weight: 500;
      letter-spacing: 0.1em; text-transform: uppercase;
      color: var(--text-3); padding-top: 5px;
    }
    .sec-title {
      font-size: 22px; font-weight: 500;
      letter-spacing: -0.03em; margin-bottom: 14px; line-height: 1.3;
    }
    .sec-body p {
      font-size: 15px; color: var(--text-2);
      line-height: 1.75; max-width: 540px;
    }
    .sec-body p + p { margin-top: 14px; }

    /* AUTHOR */
    .author {
      display: inline-flex; align-items: center; gap: 10px;
      margin-top: 28px; padding: 10px 14px;
      border: 1px solid var(--line); border-radius: 8px;
      background: var(--bg-2);
    }
    .author-dot {
      width: 7px; height: 7px; border-radius: 50%;
      background: var(--text-3); flex-shrink: 0;
    }
    .author-name { font-size: 13px; color: var(--text); }
    .author-role { font-size: 12px; color: var(--text-3); margin-left: 6px; }

    /* METRICS GRID */
    .metrics-grid {
      display: grid; grid-template-columns: repeat(3, 1fr);
      gap: 1px; background: var(--line);
      border: 1px solid var(--line); border-radius: 12px;
      overflow: hidden; margin-top: 32px;
    }
    .metric-cell {
      background: var(--bg); padding: 22px 20px;
      transition: background 0.15s;
    }
    .metric-cell:hover { background: var(--bg-2); }
    .metric-icon {
      width: 26px; height: 26px;
      color: var(--text-3); margin-bottom: 14px;
    }
    .metric-name { font-size: 13px; font-weight: 500; color: var(--text); margin-bottom: 4px; }
    .metric-desc { font-size: 12px; color: var(--text-3); line-height: 1.5; }

    /* CHIPS */
    .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
    .chip {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 7px 14px; border: 1px solid var(--line);
      border-radius: 999px; font-size: 13px; color: var(--text);
      background: var(--bg);
    }
    .dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
    .dot.on  { background: var(--green); }
    .dot.off { background: var(--line-2); }
    .soon-tag {
      font-size: 10px; letter-spacing: 0.06em;
      text-transform: uppercase; color: var(--text-3);
    }

    /* FORM */
    .form-wrap { max-width: 400px; }
    .alert {
      display: flex; gap: 10px; align-items: flex-start;
      padding: 11px 13px; border-radius: 7px;
      font-size: 13px; margin-bottom: 20px; line-height: 1.5;
    }
    .alert svg { flex-shrink: 0; margin-top: 1px; }
    .a-ok  { background: var(--green-bg); color: var(--green); border: 1px solid #bbf7d0; }
    .a-err { background: var(--red-bg); color: var(--red); border: 1px solid #fecaca; }
    .field { margin-bottom: 14px; }
    .field label {
      display: block; font-size: 11px; font-weight: 500;
      letter-spacing: 0.07em; text-transform: uppercase;
      color: var(--text-3); margin-bottom: 6px;
    }
    .field input, .field textarea {
      width: 100%; padding: 9px 12px;
      border: 1px solid var(--line); border-radius: 7px;
      font-size: 14px; font-family: inherit; color: var(--text);
      background: var(--bg); outline: none; resize: vertical;
      transition: border-color 0.15s, box-shadow 0.15s; appearance: none;
    }
    .field input:focus, .field textarea:focus {
      border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-bg);
    }
    .field input::placeholder, .field textarea::placeholder { color: var(--text-3); }
    .field textarea { min-height: 96px; }
    .math-row { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
    .math-q { font-size: 13px; color: var(--text-2); }
    .math-q strong { color: var(--text); font-weight: 500; }
    .math-row input {
      width: 72px; padding: 8px 12px; text-align: center;
      border: 1px solid var(--line); border-radius: 7px;
      font-size: 14px; font-family: inherit; color: var(--text);
      background: var(--bg); outline: none; appearance: none;
      transition: border-color 0.15s, box-shadow 0.15s;
    }
    .math-row input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-bg); }
    .hp { display: none !important; }
    .consent {
      display: flex; align-items: flex-start; gap: 10px;
      margin-bottom: 20px;
    }
    .consent input[type="checkbox"] {
      width: 15px; height: 15px; margin-top: 2px;
      flex-shrink: 0; accent-color: var(--blue);
      cursor: pointer;
    }
    .consent-text {
      font-size: 12px; color: var(--text-3); line-height: 1.6;
    }
    .consent-text a {
      color: var(--text-2); text-decoration: underline;
      text-decoration-color: var(--line); text-underline-offset: 2px;
    }
    .consent-text a:hover { color: var(--text); }
    .btn {
      display: inline-flex; align-items: center; gap: 8px;
      background: var(--text); color: var(--bg);
      padding: 10px 20px; border-radius: 7px;
      font-size: 14px; font-weight: 500; font-family: inherit;
      border: none; cursor: pointer; letter-spacing: 0.01em;
      transition: opacity 0.15s;
    }
    .btn:hover { opacity: 0.76; }

    /* FOOTER */
    footer { border-top: 1px solid var(--line); padding: 24px 0; }
    .footer-inner {
      display: flex; align-items: center; justify-content: space-between;
    }
    .footer-copy { font-size: 12px; color: var(--text-3); }
    .footer-login {
      font-size: 11px; color: var(--text-3); text-decoration: none;
      opacity: 0.4; letter-spacing: 0.04em; transition: opacity 0.2s;
    }
    .footer-login:hover { opacity: 1; }

    /* RESPONSIVE */
    @media (max-width: 860px) {
      .hero { grid-template-columns: 1fr; gap: 40px; padding: 56px 0 48px; }
      .section { grid-template-columns: 1fr; gap: 20px; padding: 56px 0; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 520px) {
      .wrap { padding: 0 20px; }
      .nav-links { display: none; }
      .metrics-grid { grid-template-columns: 1fr; }
      .hero-stats { grid-template-columns: 1fr 1fr; }
    }

.nav-links{flex-wrap:wrap;gap:12px 22px}.nav-inner{height:auto;min-height:96px;gap:20px}.hero-sub{max-width:560px}.btn{text-decoration:none;margin-top:24px}#start .sec-body>p{color:#3f3e39;font-size:16px;max-width:700px}.start-card{--accent:#b98216;border:1px solid #e4dfd5;border-top:4px solid var(--accent);border-radius:14px;padding:24px;background:#fffaf0;display:flex;flex-direction:column;min-height:300px;box-shadow:0 8px 28px rgba(17,17,16,.045)}.start-card:nth-child(2){--accent:#3f806b;background:#f3faf7}.start-card:nth-child(3){--accent:#a36d42;background:#fbf6f1}.start-card:nth-child(4){--accent:#bd624a;background:#fff5f2}.start-card:nth-child(5){--accent:#725d9c;background:#f8f6fc}.start-card:nth-child(6){--accent:#8f751d;background:#fffae9}.start-card h3{margin:5px 0 16px;font-size:18px;line-height:1.35}.start-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:28px}.start-card .start-kicker{font-size:10px;line-height:1.4;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-weight:700}.start-steps{margin:0 0 22px 20px;color:#3f3e39;font-size:14px;line-height:1.6}.start-steps li::marker{color:var(--accent);font-weight:700}.start-steps li+li{margin-top:8px}.start-card a{align-self:flex-start;display:inline-flex;align-items:center;margin-top:auto;padding:9px 13px;border-radius:8px;background:#111110;color:#fff;font-size:13px;font-weight:500;text-decoration:none;transition:transform .15s,opacity .15s}.start-card a:hover{opacity:.78;transform:translateY(-1px)}.start-help{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;margin-top:16px;padding:18px 20px;border:1px solid #ead9b4;border-radius:12px;background:#fffaf0}.start-help strong{font-size:14px}.start-help span{font-size:13px;color:#494741}.start-help a{font-size:13px;color:#111110;font-weight:600;white-space:nowrap;text-decoration:underline;text-decoration-color:#b98216;text-decoration-thickness:2px;text-underline-offset:4px}section{scroll-margin-top:140px}.footer-login{opacity:1;font-size:13px}.hero-stats .stat-num{font-size:20px}@media(max-width:600px){.start-help{grid-template-columns:1fr;gap:6px}.nav-inner{flex-direction:column;align-items:flex-start;padding-bottom:18px;gap:4px}.nav-links{display:flex}.start-grid{grid-template-columns:1fr}.hero{padding-top:40px}.author{flex-wrap:wrap}}