:root,.light{--color-bg: #fafafa;--color-bg-elevated: #ffffff;--color-text: #1a1a1a;--color-text-muted: #5c5c5c;--color-border: rgba(0, 0, 0, .08);--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-user-bubble: #dbeafe;--color-user-text: #1e40af;--color-assistant-bubble: #f1f5f9;--color-assistant-text: #1e293b;--color-link: #2563eb;--color-error-bg: #fef2f2;--color-error-text: #b91c1c;--color-input-border: #cbd5e1;--color-input-focus: #2563eb;--color-snippet-bg: rgba(0, 0, 0, .04);--shadow-header: 0 1px 0 rgba(0, 0, 0, .06)}.dark{--color-bg: #0f172a;--color-bg-elevated: #1e293b;--color-text: #f1f5f9;--color-text-muted: #94a3b8;--color-border: rgba(255, 255, 255, .08);--color-primary: #60a5fa;--color-primary-hover: #93c5fd;--color-user-bubble: #1e3a5f;--color-user-text: #bfdbfe;--color-assistant-bubble: #334155;--color-assistant-text: #e2e8f0;--color-link: #60a5fa;--color-error-bg: #450a0a;--color-error-text: #fca5a5;--color-input-border: #475569;--color-input-focus: #60a5fa;--color-snippet-bg: rgba(255, 255, 255, .06);--shadow-header: 0 1px 0 rgba(0, 0, 0, .3)}*,*:before,*:after{box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.5;min-height:100vh}#app{min-height:100vh}