:root{--bg-primary:#0F0A1A;--bg-secondary:#1A1128;--bg-tertiary:#241B35;--bg-glass:rgba(30,20,50,0.6);--border:rgba(108,99,255,0.15);--border-hover:rgba(108,99,255,0.35);--text-primary:#F0ECF6;--text-secondary:#A89EC8;--text-muted:#6E5F8A;--accent:#6C63FF;--cyan:#00D9FF;--pink:#FF6B9D;--green:#4ADE80;--yellow:#FFD93D;--orange:#FB923C;--radius:8px;--transition:0.2s cubic-bezier(0.4,0,0.2,1);--font:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;--mono:'SF Mono','Fira Code',monospace}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overflow:hidden}
body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased}
.app-container{display:flex;flex-direction:column;height:100vh}
.app-header{background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:12px 20px;z-index:10;flex-shrink:0}
.header-content{display:flex;align-items:center;justify-content:space-between}
.logo-group{display:flex;align-items:center;gap:12px}
.logo-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:linear-gradient(135deg,rgba(108,99,255,0.15),rgba(0,217,255,0.1));border-radius:var(--radius);border:1px solid var(--border)}
.app-header h1{font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--cyan));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.header-actions{display:flex;gap:8px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border:none;border-radius:var(--radius);font-family:var(--font);font-size:0.8rem;font-weight:600;cursor:pointer;transition:all var(--transition);white-space:nowrap}
.btn-secondary{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--border-hover);color:var(--text-primary)}
.btn-ghost{background:transparent;color:var(--text-muted)}
.btn-ghost:hover{color:var(--text-secondary);background:rgba(255,255,255,0.05)}
.main-content{display:flex;flex:1;overflow:hidden}
.controls-panel{width:320px;min-width:280px;background:var(--bg-secondary);border-right:1px solid var(--border);overflow-y:auto;flex-shrink:0}
.panel-section{padding:16px;border-bottom:1px solid var(--border)}
.panel-title{font-size:0.75rem;font-weight:600;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-muted);margin-bottom:14px}
.control-group{margin-bottom:16px}
.control-group:last-child{margin-bottom:0}
.control-label{display:block;font-size:0.82rem;font-weight:600;color:var(--text-secondary);margin-bottom:6px}
.control-hint{font-size:0.72rem;color:var(--text-muted);margin-top:4px}
.btn-group{display:flex;gap:2px;background:var(--bg-primary);border-radius:var(--radius);padding:2px;border:1px solid var(--border)}
.btn-toggle{flex:1;padding:7px;border:none;border-radius:6px;background:transparent;color:var(--text-muted);font-family:var(--font);font-size:0.78rem;font-weight:600;cursor:pointer;transition:all var(--transition)}
.btn-toggle.active{background:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(108,99,255,0.3)}
.control-textarea{width:100%;padding:10px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-family:var(--font);font-size:0.82rem;resize:vertical;transition:border-color var(--transition)}
.control-textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(108,99,255,0.15)}
.position-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}
.pos-btn{padding:10px;border:1px solid var(--border);border-radius:6px;background:var(--bg-primary);color:var(--text-muted);font-size:1rem;cursor:pointer;transition:all var(--transition)}
.pos-btn:hover{border-color:var(--border-hover);color:var(--text-primary)}
.pos-btn.active{background:rgba(108,99,255,0.15);border-color:var(--accent);color:var(--accent)}
.style-controls{display:flex;flex-direction:column;gap:8px}
.style-row{display:flex;align-items:center;gap:10px;font-size:0.8rem;color:var(--text-secondary)}
.style-row span:first-child{flex:1;min-width:80px}
.style-row input[type="color"]{width:32px;height:24px;border:1px solid var(--border);border-radius:4px;background:none;cursor:pointer;padding:0}
.style-row input[type="range"]{flex:1;accent-color:var(--accent);height:4px}
.range-val{font-family:var(--mono);font-size:0.72rem;color:var(--text-muted);min-width:36px;text-align:right}
.filter-checkbox{display:flex;align-items:center;gap:10px;font-size:0.82rem;color:var(--text-secondary);cursor:pointer;padding:4px 0;transition:color var(--transition);margin-bottom:4px}
.filter-checkbox:hover{color:var(--text-primary)}
.filter-checkbox input{display:none}
.checkmark{width:18px;height:18px;border-radius:4px;border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;transition:all var(--transition);flex-shrink:0}
.checkmark::after{content:'';width:10px;height:10px;border-radius:2px;background:var(--accent);opacity:0;transform:scale(0);transition:all var(--transition)}
.filter-checkbox input:checked+.checkmark::after{opacity:1;transform:scale(1)}
.filter-checkbox input:checked+.checkmark{background:rgba(108,99,255,0.1)}
.support-status{display:flex;flex-direction:column;gap:6px}
.support-item{display:flex;align-items:center;gap:8px;font-size:0.82rem;color:var(--text-secondary)}
.support-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.support-dot.yes{background:var(--green)}
.support-dot.no{background:var(--pink)}
.preview-area{flex:1;display:flex;flex-direction:column;overflow:hidden}
.preview-container{flex:1;display:flex;align-items:center;justify-content:center;position:relative;background:radial-gradient(ellipse at 50% 40%,rgba(108,99,255,0.04) 0%,transparent 60%),var(--bg-primary);overflow:hidden}
.demo-trigger{padding:12px 24px;background:linear-gradient(135deg,var(--accent),#8B5CF6);color:#fff;border:none;border-radius:var(--radius);font-family:var(--font);font-size:0.9rem;font-weight:600;cursor:pointer;box-shadow:0 4px 20px rgba(108,99,255,0.3);transition:all var(--transition)}
.demo-trigger:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(108,99,255,0.5)}
.demo-popover{border:1px solid var(--border-hover);box-shadow:0 8px 32px rgba(0,0,0,0.5);font-family:var(--font);max-width:320px}
.demo-popover::backdrop{background:rgba(15,10,26,0.5)}
.demo-popover.no-backdrop::backdrop{background:transparent}
.demo-popover.animated{animation:popIn 0.25s ease-out}
@keyframes popIn{from{opacity:0;transform:scale(0.92) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}
.nested-trigger{display:inline-block;margin-top:10px;padding:6px 14px;background:rgba(0,217,255,0.15);color:var(--cyan);border:1px solid rgba(0,217,255,0.3);border-radius:6px;font-size:0.78rem;font-weight:600;cursor:pointer;font-family:var(--font)}
.nested-popover{border:1px solid rgba(0,217,255,0.3);box-shadow:0 4px 16px rgba(0,0,0,0.4);font-family:var(--font);background:var(--bg-tertiary);color:var(--text-primary);padding:16px;border-radius:var(--radius)}
.code-output{border-top:1px solid var(--border);max-height:200px;display:flex;flex-direction:column;flex-shrink:0}
.code-tabs{display:flex;background:var(--bg-secondary);border-bottom:1px solid var(--border);padding:0 8px}
.code-tab{padding:8px 16px;background:none;border:none;border-bottom:2px solid transparent;color:var(--text-muted);font-family:var(--font);font-size:0.78rem;font-weight:600;cursor:pointer;transition:all var(--transition)}
.code-tab:hover{color:var(--text-secondary)}
.code-tab.active{color:var(--accent);border-bottom-color:var(--accent)}
.code-block{flex:1;overflow:auto;padding:12px;background:var(--bg-primary);margin:0;font-family:var(--mono);font-size:0.76rem;line-height:1.6;color:var(--text-secondary)}
@media(max-width:768px){.main-content{flex-direction:column}.controls-panel{width:100%;min-width:unset;max-height:45vh;border-right:none;border-bottom:1px solid var(--border)}}
.controls-panel::-webkit-scrollbar,.code-block::-webkit-scrollbar{width:6px}
.controls-panel::-webkit-scrollbar-track,.code-block::-webkit-scrollbar-track{background:transparent}
.controls-panel::-webkit-scrollbar-thumb,.code-block::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}