/* стили как в предыдущем сообщении, сокращены здесь ради читаемости */
:root{
  --bg:#f7f9fb;
  --card:#ffffff;
  --text:#1b2230;
  --muted:#6b7280;
  --accent:#5b6bff;
  --accent-2:#4fd1c5;
  --border:#e6eaf0;
  --shadow:0 10px 30px rgba(0,0,0,0.06);
  --radius:20px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
a{color:var(--accent);text-decoration:none}
a:hover{opacity:.85}
.container{max-width:1100px;margin:0 auto;padding:20px}
.site-header{position:sticky;top:0;background:rgba(255,255,255,0.9);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--border);z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.brand .logo{font-weight:800;letter-spacing:1px}
.brand .subtitle{font-size:12px;color:var(--muted)}
.nav a{margin:0 10px;padding:8px 12px;border-radius:12px}
.nav a:hover{background:#eef2ff}
.site-footer{margin-top:40px;background:#fff;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;align-items:center}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
.hero h1{font-size:40px;margin:0 0 16px}
.hero p.lead{font-size:18px;color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:white;padding:12px 18px;border-radius:14px;font-weight:600;border:none;cursor:pointer}
.btn.secondary{background:var(--accent-2);color:#00323a}
.btn.ghost{background:#eef2ff;color:#223}
.btn:disabled{opacity:.6;cursor:not-allowed}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.input, select, textarea{width:100%;padding:12px;border:1px solid var(--border);border-radius:12px;background:#fff}
.label{font-size:13px;color:var(--muted);margin-bottom:6px}
.section-title{font-size:24px;margin:20px 0 10px}
.badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#eef2ff;color:#334}
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th, .table td{border-bottom:1px solid var(--border);padding:10px;text-align:left}
.kit{display:flex;gap:10px;flex-wrap:wrap}
.small{font-size:12px;color:var(--muted)}
.video-preview{width:100%;background:#000;border-radius:12px;min-height:220px;display:flex;align-items:center;justify-content:center;color:#fff}
.chat{display:flex;flex-direction:column;gap:10px;max-height:400px;overflow:auto;padding:10px;border:1px solid var(--border);border-radius:12px;background:#fff}
.msg{padding:10px 12px;border-radius:12px;max-width:80%}
.msg.user{align-self:flex-end;background:#eef2ff}
.msg.bot{align-self:flex-start;background:#f1fff9}
.progress{height:10px;background:#eef2ff;border-radius:999px;overflow:hidden}
.progress > div{height:10px;background:var(--accent-2);width:0%}
.hidden{display:none}
.center{text-align:center}