:root{--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-tertiary: #e9ecef;--text-primary: #212529;--text-secondary: #6c757d;--text-tertiary: #adb5bd;--border-color: #dee2e6;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .15);--accent-primary: #6366f1;--accent-hover: #4f46e5;--accent-light: #eef2ff;--success: #10b981;--error: #ef4444;--warning: #f59e0b;--card-bg: #ffffff;--card-border: #e5e7eb}[data-theme=dark]{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-tertiary: #94a3b8;--border-color: #475569;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--accent-primary: #818cf8;--accent-hover: #6366f1;--accent-light: #312e81;--success: #34d399;--error: #f87171;--warning: #fbbf24;--card-bg: #1e293b;--card-border: #334155}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-secondary);color:var(--text-primary);transition:background-color .3s ease,color .3s ease;line-height:1.6}#app{min-height:100vh}*,*:before,*:after{transition:background-color .3s ease,color .3s ease,border-color .3s ease}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-tertiary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.container{max-width:1200px;margin:0 auto;padding:0 20px}@media (max-width: 768px){.container{padding:0 16px}}body.bb-demo-glass-theme{background:#0a1218}.demo-header-controls{display:flex;flex-wrap:wrap;align-items:stretch;justify-content:center;gap:.75rem;margin-top:1.25rem}.demo-header .demo-theme-picker,.demo-header .demo-mode-picker{background:var(--card-bg);border-color:var(--border-color);box-shadow:var(--shadow-sm)}.demo-header .demo-theme-picker__label{color:var(--text-secondary)}.demo-header .demo-theme-toggle{background:var(--bg-secondary);border-color:var(--border-color)}.demo-header .demo-theme-toggle__btn{color:var(--text-primary);opacity:.72}.demo-header .demo-theme-toggle__btn:hover{opacity:1;color:var(--text-primary)}.demo-header .demo-theme-toggle__btn--active{opacity:1;background:var(--card-bg);color:var(--accent-primary);box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.demo-header .demo-mode-btn{background:var(--bg-secondary);border-color:var(--border-color);color:var(--text-primary)}.demo-header .demo-mode-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.demo-theme-picker,.demo-mode-picker{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1rem .65rem;border-radius:12px;border:1px solid var(--border-color);background:var(--card-bg);box-shadow:var(--shadow-sm);min-height:4.5rem}.demo-mode-btn{padding:.45rem 1.1rem;min-width:9.5rem;border:1px solid var(--border-color);border-radius:8px;background:var(--bg-secondary);color:var(--text-primary);font-size:.8125rem;font-weight:500;cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease}.demo-mode-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.demo-theme-picker__label{font-size:.75rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--text-secondary)}.demo-theme-toggle{display:inline-flex;gap:.35rem;padding:.25rem;border-radius:10px;background:var(--bg-secondary);border:1px solid var(--border-color);margin-top:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.demo-theme-toggle__btn{padding:.45rem .9rem;border:1px solid transparent;border-radius:8px;background:transparent;color:var(--text-primary);opacity:.75;font-size:.8125rem;font-weight:500;cursor:pointer;transition:background .15s ease,color .15s ease,opacity .15s ease,border-color .15s ease}.demo-theme-toggle__btn:hover{opacity:1;color:var(--text-primary)}.demo-theme-toggle__btn--active{opacity:1;background:var(--card-bg);color:var(--accent-primary);border-color:var(--border-color);box-shadow:var(--shadow-sm)}.builder-shell--glass{position:relative;border-radius:24px;overflow:hidden;margin:0 1rem 2rem;background:radial-gradient(circle at 14% 20%,rgba(0,227,255,.35),transparent 42%),radial-gradient(circle at 86% 14%,rgba(56,189,248,.28),transparent 38%),radial-gradient(circle at 70% 88%,rgba(14,165,233,.22),transparent 40%),linear-gradient(145deg,#0c1220,#111827 45%,#0f172a);box-shadow:0 24px 64px #0006}.builder-shell--glass:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");pointer-events:none;opacity:.35}.builder-shell--glass .bb-app{background:transparent}.builder-shell--glass .bb-app .bb-controls-inner,.builder-shell--glass .bb-app .bb-modal-content,.builder-shell--glass .bb-app .bb-modal-header,.builder-shell--glass .bb-app .bb-modal-footer,.builder-shell--glass .bb-app .bb-repeater-control__item,.builder-shell--glass .bb-app .bb-form-control,.builder-shell--glass .bb-app .bb-dropdown__control,.builder-shell--glass .bb-app .bb-block-controls-inner{backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);border-color:#ffffff1f}.builder-shell--glass .bb-app .bb-control-btn{color:#ffffffe6}.builder-shell--glass .bb-app .bb-control-btn:hover:not(:disabled){color:#fff;background:#ffffff24}body.bb-demo-glass-theme .bb-dropdown__panel{backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);border:1px solid rgba(255,255,255,.12);box-shadow:0 12px 40px #00000073}