:root{--bg: #0c0e14;--surface: #151821;--surface-raised: #1c2030;--border: #2a3044;--border-strong: #3b4460;--text: #f1f5f9;--text-muted: #94a3b8;--accent: #8b5cf6;--accent-soft: rgb(139 92 246 / .14);--accent-glow: rgb(139 92 246 / .35);--canvas-bg: #080a10;--shadow-md: 0 12px 40px rgb(0 0 0 / .35);--radius-sm: 10px;--radius-md: 16px;--radius-lg: 22px;--font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, blinkmacsystemfont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", "Segoe UI Mono", monospace}*,*:before,*:after{box-sizing:border-box}body{background:var(--bg);background-image:radial-gradient(circle at 15% 0%,rgb(139 92 246 / .12),transparent 42%),radial-gradient(circle at 85% 10%,rgb(56 189 248 / .08),transparent 35%);color:var(--text);font-family:var(--font-sans);line-height:1.5;margin:0;min-height:100vh}button{font:inherit}