:root{--bg: #f4f6fb;--card: #ffffff;--text: #1f2430;--muted: #6b7280;--border: #e5e7eb;--primary: #4f46e5;--primary-dark: #4338ca;--primary-soft: #eef2ff;--success: #16a34a;--success-soft: #f0fdf4;--danger: #dc2626;--danger-soft: #fef2f2;--warning: #b45309;--warning-soft: #fffbeb;--radius: 16px;--shadow: 0 10px 30px rgba(15, 23, 42, .08)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background:linear-gradient(160deg,#eef2ff,#f4f6fb 40%,#fdf2f8);color:var(--text);min-height:100vh;display:flex;justify-content:center;align-items:flex-start;padding:24px 16px}#root{width:100%;max-width:720px}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);padding:28px}@media(max-width:640px){body{padding:12px 8px}.card{padding:18px}}h2{margin:0 0 4px;font-size:1.35rem;font-weight:700}p.muted{color:var(--muted);font-size:.92rem;margin:6px 0 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