:root{--bg: #0b0f17;--panel: #131a26;--panel-2: #0f1520;--border: #1f2937;--text: #e5e7eb;--muted: #8b98ab;--accent: #4f9cf9;--accent-dim: #2c5f9e;--ok: #34d399;--warn: #f59e0b;--danger: #ef4444}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px}h1{font-size:1.6rem;margin:0}h2{font-size:1.15rem;margin:0 0 14px}a{color:var(--accent)}.muted{color:var(--muted)}.app{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:16px;padding:10px 18px;background:var(--panel);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20;flex-wrap:wrap}.brand{font-weight:700;font-size:1.05rem;white-space:nowrap}.topbar nav{display:flex;gap:4px;flex:1;flex-wrap:wrap}.topbar nav a{color:var(--muted);text-decoration:none;padding:7px 12px;border-radius:8px;font-weight:500}.topbar nav 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