*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f6f5f1;--bg-surface: #ffffff;--text-primary: #1c1c21;--text-secondary: #6f6f77;--text-tertiary: #a0a0a8;--border: #e3e3e7;--border-hover: #c7c7cd;--border-w: 1px;--accent: #2563eb;--accent-hover: #1d4ed8;--accent-soft: #dbeafe;--green: #16a34a;--green-soft: #dcfce7;--amber: #d97706;--amber-soft: #fef3c7;--red: #dc2626;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.06);--font-sans: "Inter", -apple-system, system-ui, sans-serif;--font-display: "DM Sans", "Inter", -apple-system, system-ui, sans-serif;--header-h: 56px}html{font-size:16px;-webkit-font-smoothing:antialiased;scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--bg);color:var(--text-primary);line-height:1.6;min-height:100vh}.header{position:sticky;top:0;z-index:100;background:#f6f5f1d9;backdrop-filter:blur(12px);border-bottom:var(--border-w) solid 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