:root{color-scheme:light;--bg: #f4efe7;--bg-deep: #1f3b34;--card: rgba(255, 252, 247, .84);--card-border: rgba(31, 59, 52, .14);--text: #15312b;--muted: #56716a;--accent: #0f766e;--accent-strong: #115e59;--accent-soft: #d9efe8;--warm: #f59e0b;--success: #0d9488;--danger: #b91c1c;--shadow: 0 30px 80px rgba(17, 46, 40, .18);font-family:Instrument Sans,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--text);background:radial-gradient(circle at top left,rgba(15,118,110,.18),transparent 28%),radial-gradient(circle at 85% 15%,rgba(245,158,11,.14),transparent 20%),linear-gradient(135deg,#f8f2ea,#f2eee7 42%,#e6f0eb)}main{min-height:100vh;padding:32px;display:grid;align-items:center}.page-frame{width:min(1180px,100%);margin:0 auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px}.brand{display:inline-flex;align-items:center;gap:12px;font-size:.95rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--bg-deep)}.brand-mark{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#15312b,#0f766e);box-shadow:0 14px 30px #0f766e47}.topbar-note{padding:10px 16px;border-radius:999px;background:#ffffffb8;border:1px solid rgba(21,49,43,.08);color:var(--muted);backdrop-filter:blur(14px)}.hero-shell{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}.hero-copy,.onboarding-card{position:relative;overflow:hidden;border:1px solid var(--card-border);border-radius:32px;background:var(--card);backdrop-filter:blur(20px);box-shadow:var(--shadow)}.hero-copy{padding:42px}.hero-copy:after{content:"";position:absolute;inset:auto -40px -80px auto;width:220px;height:220px;border-radius:999px;background:radial-gradient(circle,rgba(245,158,11,.2),transparent 68%)}.eyebrow{display:inline-flex;margin-bottom:18px;padding:8px 14px;border-radius:999px;background:var(--accent-soft);color:var(--accent-strong);font-size:.82rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase}h1{margin:0;max-width:14ch;font-size:clamp(2.25rem,4.8vw,4.2rem);line-height:1.02;letter-spacing:-.04em}.lead{margin:22px 0 32px;max-width:60ch;font-size:1.1rem;line-height:1.7;color:var(--muted)}.benefits{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.benefits div{padding:18px;border-radius:22px;background:#ffffff9e;border:1px solid rgba(21,49,43,.06)}.language-prompt{margin-bottom:24px;padding:18px;border-radius:22px;background:#15312beb;color:#f7f4ee;box-shadow:0 18px 40px #15312b2e}.language-prompt strong{display:block;margin-bottom:6px}.language-prompt p{margin:0;color:#f7f4eed1;line-height:1.6}.language-prompt-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.language-button{appearance:none;border-radius:999px;padding:10px 16px;font:inherit;font-weight:700;cursor:pointer;transition:transform .18s ease,opacity .18s ease}.language-button:hover{transform:translateY(-1px)}.language-button-primary{border:0;color:#fff;background:linear-gradient(135deg,#0f766e,#115e59)}.language-button-secondary{border:1px solid rgba(247,244,238,.2);color:#f7f4ee;background:transparent}.benefits strong,.onboarding-card h2{display:block;margin-bottom:8px}.benefits p,.card-copy,.helper-text,.trust-list{margin:0;color:var(--muted);line-height:1.6}.onboarding-card{padding:32px;display:flex;flex-direction:column;justify-content:center}.card-top{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-size:.95rem;color:var(--bg-deep)}.status-dot{width:12px;height:12px;border-radius:999px;background:#9ca3af;box-shadow:0 0 0 8px #9ca3af1f}.status-ready,.status-success{background:var(--success);box-shadow:0 0 0 8px #0d948824}.status-loading-sdk,.status-sending{background:var(--warm);box-shadow:0 0 0 8px #f59e0b24}.status-error{background:var(--danger);box-shadow:0 0 0 8px #b91c1c24}.onboarding-card h2{margin:0 0 8px;font-size:2rem;line-height:1.1}.card-copy{margin-bottom:24px}.cta-button{appearance:none;border:0;border-radius:18px;background:linear-gradient(135deg,#1877f2,#0f5fd7);color:#fff;cursor:pointer;font:inherit;font-weight:700;padding:16px 20px;transition:transform .18s ease,box-shadow .18s ease,opacity .18s ease;box-shadow:0 18px 34px #1877f247}.cta-button:hover:not(:disabled){transform:translateY(-2px)}.cta-button:disabled{opacity:.72;cursor:wait}.helper-text{margin-top:16px}.trust-list{padding-left:20px;margin-top:22px}.trust-list li+li{margin-top:10px}@media(max-width:980px){.hero-shell,.benefits{grid-template-columns:1fr}}@media(max-width:720px){main{padding:18px}.topbar{flex-direction:column;align-items:flex-start}.hero-copy,.onboarding-card{padding:24px;border-radius:24px}h1{max-width:100%;font-size:clamp(2.6rem,12vw,4.2rem)}}