:root,:root[data-theme=light]{--bg: #f5f6f8;--bg-elevated: #ffffff;--bg-sunken: #eceef1;--bg-hover: #f0f2f5;--border: #d8dce1;--border-strong: #c2c8d0;--text: #1a1d21;--text-muted: #6b727c;--text-faint: #969ca6;--primary: #2f6fed;--primary-hover: #1f5bd6;--primary-soft: #e6efff;--primary-contrast: #ffffff;--danger: #d64545;--danger-soft: #fdecec;--warning: #d98e04;--warning-soft: #fdf3e0;--success: #2f9e44;--success-soft: #e8f6ec;--focus-ring: 0 0 0 3px rgba(47, 111, 237, .35);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 4px 12px rgba(0, 0, 0, .06);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12), 0 2px 8px rgba(0, 0, 0, .08)}:root[data-theme=dark]{--bg: #14171c;--bg-elevated: #1c2026;--bg-sunken: #0f1216;--bg-hover: #232831;--border: #2c323b;--border-strong: #3a414c;--text: #e7eaee;--text-muted: #9aa3af;--text-faint: #6b7480;--primary: #4f86f7;--primary-hover: #6a99f9;--primary-soft: #1b2942;--primary-contrast: #0f1216;--danger: #e06363;--danger-soft: #3a1f1f;--warning: #e0a64b;--warning-soft: #3a2f1a;--success: #51cf66;--success-soft: #1c3322;--focus-ring: 0 0 0 3px rgba(79, 134, 247, .4);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .5)}:root{--radius-sm: 6px;--radius: 9px;--radius-lg: 14px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--fs-sm: .85rem;--fs-base: .95rem;--fs-lg: 1.15rem;--fs-xl: 1.5rem;--transition: .18s ease}*{box-sizing:border-box}html,body{margin:0;height:100%}body{font-family:var(--font-sans);font-size:var(--fs-base);background:var(--bg);color:var(--text);transition:background var(--transition),color var(--transition)}h1,h2,h3{margin:0 0 var(--space-3);line-height:1.25}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:6px}::-webkit-scrollbar-track{background:transparent}