:root{--c-primary: #2563eb;--c-primary-hover: #1d4ed8;--c-success: #16a34a;--c-warning: #d97706;--c-danger: #dc2626;--c-info: #0891b2;--bg: #f8fafc;--bg-card: #ffffff;--bg-sub: #f1f5f9;--bg-input: #ffffff;--text: #0f172a;--text-2: #475569;--text-3: #94a3b8;--border: #e2e8f0;--border-2: #cbd5e1;--shadow-sm: 0 1px 3px rgba(0,0,0,.07);--shadow-md: 0 4px 8px rgba(0,0,0,.09);--r: 8px;--rl: 12px;--nav-h: 56px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--font-num: "Cascadia Code", "Fira Code", "Courier New", monospace}body.dark{--bg: #0f172a;--bg-card: #1e293b;--bg-sub: #334155;--bg-input: #1e293b;--text: #f1f5f9;--text-2: #94a3b8;--text-3: #64748b;--border: #334155;--border-2: #475569;--shadow-sm: 0 1px 3px rgba(0,0,0,.3);--shadow-md: 0 4px 8px rgba(0,0,0,.4)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:15px}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh;transition:background 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