:root{color-scheme:light;--bg: #f4f7ff;--surface: #ffffff;--surface-alt: #f8fbff;--border: #e6eef8;--text: #0f172a;--muted: #5d6b82;--primary-start: #06b6d4;--primary-end: #6366f1;--success: #059669;--warning: #d97706;--danger: #dc2626;--shadow: 0 18px 48px rgba(8, 15, 29, .08)}html.dark-theme{color-scheme:dark;--bg: #0b1220;--surface: #0f1724;--surface-alt: #0b1420;--border: rgba(255,255,255,.08);--text: #e6eef8;--muted: #9aa8bc;--primary-start: #06b6d4;--primary-end: #6366f1;--shadow: 0 18px 48px rgba(0, 0, 0, .38)}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif;background:radial-gradient(1200px 500px at 5% 0%,rgba(6,182,212,.06),transparent 40%),radial-gradient(1000px 420px at 100% 100%,rgba(99,102,241,.08),transparent 35%),linear-gradient(180deg,var(--bg) 0%,var(--bg) 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