:root{--bg-primary: #0d1117;--bg-secondary: #161b22;--bg-tertiary: #21262d;--bg-card: #1c2128;--bg-hover: #292e36;--bg-input: #0d1117;--border-primary: #30363d;--border-secondary: #21262d;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-muted: #6e7681;--accent-blue: #58a6ff;--accent-blue-hover: #79c0ff;--accent-green: #3fb950;--accent-orange: #d29922;--accent-red: #f85149;--accent-purple: #bc8cff;--shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 1px 2px rgba(0, 0, 0, .2);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .4);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--sidebar-width: 260px;--sidebar-collapsed: 64px;--header-height: 60px;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;--font-mono: "SF Mono", "Cascadia Code", "Consolas", monospace}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent-blue);text-decoration:none}a:hover{color:var(--accent-blue-hover)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-primary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}input,textarea,select{font-family:var(--font-family);font-size:14px;color:var(--text-primary);background:var(--bg-input);border:1px solid var(--border-primary);border-radius:var(--radius-sm);padding:8px 12px;outline:none;transition:border-color .2s;width:100%}input:focus,textarea:focus,select:focus{border-color:var(--accent-blue);box-shadow:0 0 0 3px #58a6ff26}input::placeholder,textarea::placeholder,select::placeholder{color:var(--text-muted)}textarea{resize:vertical;min-height:100px}select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b949e' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;font-size:14px;font-weight:500;border:1px solid transparent;border-radius:var(--radius-sm);cursor:pointer;transition:all .15s ease;font-family:var(--font-family);white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-blue);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-blue-hover)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-primary)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover)}.btn-danger{background:#f8514926;color:var(--accent-red);border-color:#f851494d}.btn-danger:hover:not(:disabled){background:#f8514940}.btn-success{background:#3fb95026;color:var(--accent-green);border-color:#3fb9504d}.btn-success:hover:not(:disabled){background:#3fb95040}.btn-sm{padding:4px 10px;font-size:12px}.btn-icon{padding:6px;border-radius:var(--radius-sm);background:transparent;border:none;color:var(--text-secondary);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.btn-icon:hover{color:var(--text-primary);background:var(--bg-hover)}.card{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-md);padding:20px}.text-muted{color:var(--text-secondary)}.text-center{text-align:center}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.gap-1{gap:8px}.gap-2{gap:16px}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.flex-1{flex:1}.flex-wrap{flex-wrap:wrap}