:root{--bg: #0a1119;--panel: #0f1a24;--panel-2: #132030;--line: #1f3040;--ink: #e8eef4;--sub: #8aa0b4;--open: #43e0a0;--close: #e0655a;--price: #ffd166;--accent: #5aa9ff}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1200px 600px at 20% -10%,#14243400,#0a1119),var(--bg);color:var(--ink);font:15px/1.5 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.app{max-width:1340px;margin:0 auto;padding:24px}header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}header h1{margin:0;font-size:24px;letter-spacing:.3px}.tagline{margin:4px 0 0;color:var(--sub)}.tabs{display:flex;gap:6px;background:#0c1622;border:1px solid var(--line);border-radius:10px;padding:4px}.tabs button{padding:8px 16px;border-radius:7px;border:none;background:none;color:var(--sub);cursor:pointer;font-weight:600;font-size:14px}.tabs 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