:root{--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--radius-pill: 999px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;--text-xs: 11px;--text-sm: 13px;--text-md: 15px;--text-lg: 18px;--text-xl: 24px;--text-2xl: 32px;--weight-normal: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .08);--shadow-md: 0 4px 16px rgba(0, 0, 0, .12)}:root,[data-theme=dark]{color-scheme:dark;--color-bg: #0f1115;--color-surface: #16181f;--color-surface-2: #1e212b;--color-border: #2a2e3a;--color-text: #f2f4f8;--color-text-muted: #9aa1b0;--color-primary: #4f7cff;--color-primary-hover: #6b91ff;--color-primary-contrast: #ffffff;--color-bubble-own: #4f7cff;--color-bubble-own-text: #ffffff;--color-bubble-other: #1e212b;--color-bubble-other-text: #f2f4f8;--color-danger: #ff5c5c;--color-success: #37d399}[data-theme=light]{color-scheme:light;--color-bg: #f5f6f8;--color-surface: #ffffff;--color-surface-2: #eceef2;--color-border: #dde1e8;--color-text: #16181f;--color-text-muted: #6b7280;--color-primary: #3b6df0;--color-primary-hover: #2f5cd6;--color-primary-contrast: #ffffff;--color-bubble-own: #3b6df0;--color-bubble-own-text: #ffffff;--color-bubble-other: #ffffff;--color-bubble-other-text: #16181f;--color-danger: #d93a3a;--color-success: #12a06a}@media (prefers-color-scheme: light){:root:not([data-theme=dark]){color-scheme:light;--color-bg: #f5f6f8;--color-surface: #ffffff;--color-surface-2: #eceef2;--color-border: #dde1e8;--color-text: #16181f;--color-text-muted: #6b7280;--color-primary: #3b6df0;--color-primary-hover: #2f5cd6;--color-primary-contrast: #ffffff;--color-bubble-own: #3b6df0;--color-bubble-own-text: #ffffff;--color-bubble-other: #ffffff;--color-bubble-other-text: #16181f;--color-danger: #d93a3a;--color-success: #12a06a}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font-sans);font-size:var(--text-md);line-height:1.45;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}button{font-family:inherit}a{color:var(--color-primary);text-decoration:none;word-break:break-all}.app{height:100%;height:100dvh}.screen{min-height:100%;min-height:100dvh;padding:var(--space-6);display:flex;flex-direction:column}.screen--center{align-items:center;justify-content:center}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid transparent;border-radius:var(--radius-md);padding:var(--space-3) var(--space-5);font-size:var(--text-md);font-weight:var(--weight-semibold);cursor:pointer;transition:background .15s ease,opacity .15s ease,transform .05s 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