:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--accent-color: #3b82f6;--accent-hover: #2563eb;--danger-color: #ef4444;--success-color: #10b981;--warning-color: #f59e0b;--border-color: #334155;--bubble-me: #2563eb;--bubble-other: #1e293b;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}[data-theme=light]{--bg-primary: #f1f5f9;--bg-secondary: #ffffff;--bg-tertiary: #e2e8f0;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--accent-color: #2563eb;--accent-hover: #1d4ed8;--border-color: #cbd5e1;--bubble-me: #3b82f6;--bubble-other: #ffffff}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;width:100%;font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);overflow:hidden}button{cursor:pointer;border:none;outline:none;font-family:inherit;font-weight:500;border-radius:6px;transition:all .2s ease-in-out;display:inline-flex;align-items:center;justify-content:center}.btn-primary{background-color:var(--accent-color)!important;color:#fff!important;padding:12px 20px!important;border-radius:8px!important;font-size:15px!important;font-weight:600!important;box-shadow:0 4px 12px #3b82f64d!important;border:1px solid rgba(255,255,255,.1)!important;text-decoration:none!important}.btn-primary:hover:not(:disabled){background-color:var(--accent-hover)!important;transform:translateY(-1px);box-shadow:0 6px 16px #3b82f666!important}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.6!important;cursor:not-allowed!important;transform:none!important}.btn-secondary{background-color:var(--bg-tertiary)!important;color:var(--text-primary)!important;padding:10px 18px!important;border-radius:8px!important;font-size:14px!important}.btn-secondary:hover{background-color:var(--border-color)!important}.btn-cancel{background:transparent!important;color:var(--text-secondary)!important;padding:8px 16px!important;border:1px solid var(--border-color)!important;border-radius:6px!important}.btn-cancel:hover{background:var(--bg-tertiary)!important;color:var(--text-primary)!important}input,textarea,select{font-family:inherit;outline:none;border:1px solid var(--border-color);background:var(--bg-tertiary);color:var(--text-primary);border-radius:8px;padding:10px 14px;font-size:14px;transition:border-color .2s,box-shadow .2s}input:focus,textarea:focus,select:focus{border-color:var(--accent-color);box-shadow:0 0 0 3px #3b82f633}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}