:root{--color-bg: #0f1117;--color-bg-secondary: #1a1d27;--color-bg-tertiary: #242836;--color-surface: #1e2130;--color-border: #2d3148;--color-border-light: #383d56;--color-text: #e4e6f0;--color-text-secondary: #9498b3;--color-text-muted: #6b7096;--color-primary: #6366f1;--color-primary-hover: #818cf8;--color-primary-bg: rgba(99, 102, 241, .12);--color-success: #22c55e;--color-success-bg: rgba(34, 197, 94, .12);--color-warning: #f59e0b;--color-warning-bg: rgba(245, 158, 11, .12);--color-danger: #ef4444;--color-danger-bg: rgba(239, 68, 68, .12);--color-info: #3b82f6;--color-info-bg: rgba(59, 130, 246, .12);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .4);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover)}.app-layout{min-height:100vh;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-xl);background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:100}.app-header-brand{display:flex;align-items:center;gap:var(--space-sm);font-size:var(--text-lg);font-weight:600;color:var(--color-text)}.app-header-brand svg{color:var(--color-primary)}.app-header-nav{display:flex;align-items:center;gap:var(--space-xs)}.nav-btn{display:flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);border:none;background:transparent;color:var(--color-text-secondary);font-size:var(--text-sm);cursor:pointer;border-radius:var(--radius-md);transition:all .15s}.nav-btn:hover{background:var(--color-bg-tertiary);color:var(--color-text)}.nav-btn.active{background:var(--color-primary-bg);color:var(--color-primary)}.app-main{flex:1;padding:var(--space-xl);max-width:1200px;width:100%;margin:0 auto}.card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-md)}.card-title{font-size:var(--text-lg);font-weight:600}.btn{display:inline-flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);border:none;border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:500;cursor:pointer;transition:all .15s;white-space:nowrap}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-secondary{background:var(--color-bg-tertiary);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-border)}.btn-danger{background:var(--color-danger-bg);color:var(--color-danger);border:1px solid rgba(239,68,68,.2)}.btn-danger:hover{background:#ef444433}.btn-sm{padding:var(--space-xs) var(--space-sm);font-size:var(--text-xs)}.btn:disabled{opacity:.5;cursor:not-allowed}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:100px;font-size:var(--text-xs);font-weight:500}.badge-success{background:var(--color-success-bg);color:var(--color-success)}.badge-warning{background:var(--color-warning-bg);color:var(--color-warning)}.badge-danger{background:var(--color-danger-bg);color:var(--color-danger)}.badge-info{background:var(--color-info-bg);color:var(--color-info)}.badge-primary{background:var(--color-primary-bg);color:var(--color-primary)}.form-group{margin-bottom:var(--space-md)}.form-label{display:block;font-size:var(--text-sm);color:var(--color-text-secondary);margin-bottom:var(--space-xs)}.form-input,.form-textarea,.form-select{width:100%;padding:var(--space-sm) var(--space-md);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);font-size:var(--text-sm);font-family:inherit;transition:border-color .15s}.form-input:focus,.form-textarea:focus,.form-select:focus{outline:none;border-color:var(--color-primary)}.form-textarea{resize:vertical;min-height:80px}.table-wrapper{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:var(--space-sm) var(--space-md);text-align:left;border-bottom:1px solid var(--color-border)}th{font-size:var(--text-xs);text-transform:uppercase;color:var(--color-text-muted);font-weight:600}td{font-size:var(--text-sm)}.code-block{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-md);font-family:var(--font-mono);font-size:var(--text-sm);overflow-x:auto;line-height:1.5}.code-inline{background:var(--color-bg-tertiary);padding:1px 6px;border-radius:4px;font-family:var(--font-mono);font-size:.85em}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-md)}.stat-card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg)}.stat-label{font-size:var(--text-sm);color:var(--color-text-secondary);margin-bottom:var(--space-xs)}.stat-value{font-size:var(--text-2xl);font-weight:700;color:var(--color-text)}.stat-change{font-size:var(--text-xs);margin-top:var(--space-xs)}.empty-state{text-align:center;padding:var(--space-2xl);color:var(--color-text-secondary)}.empty-state svg{margin-bottom:var(--space-md);opacity:.5}.spinner{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-center{display:flex;align-items:center;justify-content:center;min-height:400px;flex-direction:column;gap:var(--space-md);color:var(--color-text-secondary)}.app-footer{padding:var(--space-lg) var(--space-xl);border-top:1px solid var(--color-border);text-align:center;font-size:var(--text-xs);color:var(--color-text-muted)}.app-footer a{color:var(--color-text-secondary)}.try-panel{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.try-panel-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-sm) var(--space-md);background:var(--color-bg-tertiary);border-bottom:1px solid var(--color-border);font-size:var(--text-sm);font-weight:500}.try-panel-body{display:grid;grid-template-columns:1fr 1fr;gap:0}.try-panel-input,.try-panel-output{padding:var(--space-md)}.try-panel-input{border-right:1px solid var(--color-border)}.try-panel-output{background:var(--color-bg-secondary)}.try-panel-label{font-size:var(--text-xs);text-transform:uppercase;color:var(--color-text-muted);margin-bottom:var(--space-sm);font-weight:600}@media (max-width: 1024px){.app-main{padding:var(--space-lg)}}@media (max-width: 768px){.app-header{padding:var(--space-sm) var(--space-md)}.app-header-nav{gap:0}.nav-btn span{display:none}.app-main{padding:var(--space-md)}.stat-grid{grid-template-columns:repeat(2,1fr)}.try-panel-body{grid-template-columns:1fr}.try-panel-input{border-right:none;border-bottom:1px solid var(--color-border)}}@media (max-width: 480px){.stat-grid{grid-template-columns:1fr}}