:root{--bg: #060b16;--bg-2: #0f1f2e;--surface: #111d2c;--surface-alt: #18283c;--border: rgba(255, 255, 255, .1);--text: #f3f7fc;--text-dim: #9fb1c4;--accent-1: #ff8a00;--accent-2: #ff3d68;--ok: #22c55e;--danger: #f87171}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:var(--text);background:radial-gradient(900px 500px at 12% 0%,#1c3250 0%,transparent 60%),radial-gradient(700px 500px at 90% 100%,#422136 0%,transparent 70%),linear-gradient(160deg,var(--bg),var(--bg-2))}.shell{width:100%;max-width:1400px;margin:0 auto;padding:24px;display:grid;gap:18px}.header{display:flex;align-items:center;justify-content:space-between;gap:12px}.header h1{margin:0;font-size:1.6rem}.subtitle{margin:4px 0 0;color:var(--text-dim);font-size:.92rem}.header 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