:root{--bg: #0f1419;--card: #1a2129;--border: #2a3441;--text: #e6edf3;--muted: #8b98a5;--green: #22c55e;--amber: #f59e0b;--red: #ef4444;--gray: #6b7280;--accent: #38bdf8;--shadow: 0 14px 34px rgba(0, 0, 0, .28)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}a{color:inherit;text-decoration:none}h1,h2,p{margin:0}h1{font-size:clamp(1.65rem,4vw,2.3rem)}h2{font-size:1rem;margin-bottom:14px}p{color:var(--muted);line-height:1.45}.shell{width:min(1200px,calc(100% - 32px));margin:0 auto;padding:24px 0 48px}.chip-row,.tabs,.segmented,.alert-row{display:flex;align-items:center}.login-mark{display:inline-grid;place-items:center;border-radius:8px;background:var(--accent);color:#071016;font-weight:800}.tabs button,.segmented button,.ghost,.primary,.chip{border:1px solid 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