:root{--bg-primary: #0d1117;--bg-secondary: #161b22;--bg-tertiary: #21262d;--bg-hover: #30363d;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-muted: #6e7681;--border-color: #30363d;--accent: #58a6ff;--accent-hover: #79c0ff;--accent-light: rgba(88, 166, 255, .12);--accent-subtle: rgba(88, 166, 255, .06);--success: #3fb950;--success-bg: rgba(63, 185, 80, .12);--warning: #d29922;--warning-bg: rgba(210, 153, 34, .12);--error: #f85149;--error-bg: rgba(248, 81, 73, .12);--radius: 6px;--radius-sm: 4px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0,0,0,.12);--shadow-md: 0 4px 12px rgba(0,0,0,.24);--shadow-lg: 0 8px 24px rgba(0,0,0,.32);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-in-out: cubic-bezier(.65, 0, .35, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--font-mono: "SF Mono", "Fira Code", "Cascadia Code", "Consolas", "Courier New", monospace}[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f6f8fa;--bg-tertiary: #eaeef2;--bg-hover: #d0d7de;--text-primary: #1f2328;--text-secondary: #656d76;--text-muted: #8c959f;--border-color: #d0d7de;--accent: #0969da;--accent-hover: #0550ae;--accent-light: rgba(9, 105, 218, .08);--accent-subtle: rgba(9, 105, 218, .04);--shadow-sm: 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 12px rgba(0,0,0,.08);--shadow-lg: 0 8px 24px rgba(0,0,0,.12)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeSlideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes slideInRight{0%{opacity:0;transform:translate(16px)}to{opacity:1;transform:translate(0)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes 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var(--ease-out)}button:hover:after{opacity:1}button:hover{background:#2ea043}button:active{transform:scale(.98)}button:disabled{opacity:.5;cursor:not-allowed;transform:none}button.secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}button.secondary:hover{background:var(--bg-hover)}button.danger{background:#da3633}button.danger:hover{background:#f85149}input,textarea,select{font-family:inherit;font-size:13px;background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:var(--radius);padding:6px 12px;outline:none;transition:all .15s var(--ease-out);line-height:20px}input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-hover);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.app-layout{display:flex;flex-direction:column;height:100vh;overflow:hidden;animation:fadeIn .3s var(--ease-out)}.app-header{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:48px;background:var(--bg-secondary);border-bottom:1px solid var(--border-color);flex-shrink:0;z-index:100}.app-header-left{display:flex;align-items:center;gap:16px}.app-logo{font-size:16px;font-weight:600;color:var(--text-primary);letter-spacing:-.3px}.app-logo svg{width:22px;height:22px;vertical-align:middle;margin-right:4px;margin-top:-2px}.app-nav{display:flex;gap:2px}.app-nav a{padding:4px 12px;border-radius:var(--radius);color:var(--text-secondary);font-size:13px;font-weight:500;transition:all .15s var(--ease-out)}.app-nav 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8px}.app-header-left{gap:8px}.app-logo{font-size:14px}.login-card{width:90vw;padding:24px}.profile-avatar{width:60px;height:60px}.profile-meta{flex-direction:column;gap:4px}.monitor-card{padding:8px}.monitor-value{font-size:16px}.ide-monitor-panel{padding:8px}.ide-lang-select{font-size:11px;padding:2px 6px}}@media(max-width:480px){.app-header{height:40px}.app-header-left{gap:4px}.app-nav a{padding:4px 6px;font-size:11px}.app-logo{font-size:13px}.page-header,.page-content{padding:8px}.toolbar{gap:1px;padding:3px 6px}.toolbar button{font-size:10px;padding:2px 4px}.toolbar select{font-size:10px;max-width:50px}.ide-sidebar,.admin-sidebar{width:120px}.monitor-grid{grid-template-columns:1fr}.card{padding:12px}.profile-avatar{width:50px;height:50px}.profile-container{padding:0 4px}}.media-picker-item:hover{border-color:var(--accent)!important;background:var(--accent-subtle)}