*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#E17055;--primary-light:#FAB1A0;--accent:#00CEC9;
  --bg:#0B0E11;--bg-card:rgba(20,24,32,0.85);
  --bg-input:rgba(15,18,25,0.8);--text:#E8E6F0;--text-dim:#8B8AA0;
  --text-muted:#5A5872;--border:rgba(225,112,85,0.15);
  --success:#00B894;--danger:#FF6B6B;--warning:#FDCB6E;
  --radius:12px;--radius-sm:8px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --mono:'JetBrains Mono','SFMono-Regular','Consolas',monospace;
  --transition:250ms ease;--glass-bg:rgba(20,24,32,0.6);--glass-border:rgba(255,255,255,0.06)
}
html{font-size:16px}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse at 20% 15%,rgba(225,112,85,0.06) 0%,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(0,206,201,0.04) 0%,transparent 50%);pointer-events:none;z-index:0}
.app{position:relative;z-index:1}
.header{padding:1rem 2rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem}
.header-brand{display:flex;align-items:center;gap:.75rem}
.header-brand h1{font-size:1rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.subtitle{font-size:.78rem;color:var(--text-dim)}
.subtitle code{color:var(--primary-light);font-family:var(--mono);font-size:.75rem}
.badge{font-size:.72rem;padding:.2rem .55rem;border-radius:99px;font-weight:600}
.badge.supported{background:rgba(0,184,148,0.15);color:#00B894}
.badge.unsupported{background:rgba(253,203,110,0.15);color:#FDCB6E}
.main{padding:1.5rem 2rem}
.layout{display:grid;grid-template-columns:280px 1fr;gap:1.5rem;align-items:start}
.glass-card{background:var(--glass-bg);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1rem}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.75rem;flex-wrap:wrap;gap:.5rem}
.section-title{font-size:.85rem;font-weight:700;color:var(--primary-light);margin-bottom:.75rem}
.section-header .section-title{margin-bottom:0}
.controls{position:sticky;top:1rem}
.ctrl{margin-bottom:.6rem}
.ctrl-label{display:block;font-size:.72rem;font-weight:600;color:var(--text-dim);margin-bottom:.2rem;text-transform:uppercase;letter-spacing:.04em}
.color-input{width:100%;height:32px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-input);cursor:pointer;padding:0}
.range-row{display:flex;align-items:center;gap:.5rem}
.range{flex:1;accent-color:var(--primary)}
.range-val{font-family:var(--mono);font-size:.78rem;color:var(--text-dim);min-width:2.5rem;text-align:right}
.preset-btns{display:flex;gap:.25rem;margin-bottom:1rem}
.preset-btn{flex:1;padding:.35rem .3rem;background:rgba(255,255,255,0.03);border:1px solid var(--glass-border);border-radius:var(--radius-sm);color:var(--text-dim);font-size:.72rem;font-weight:600;cursor:pointer;transition:all var(--transition);font-family:var(--font)}
.preset-btn:hover{border-color:var(--border);color:var(--text)}
.preset-btn.active{background:rgba(225,112,85,0.15);border-color:var(--primary);color:var(--primary-light)}
.option-editor{display:flex;flex-direction:column;gap:.25rem}
.option-row{display:flex;gap:.2rem;align-items:center}
.option-row input{flex:1;padding:.3rem .4rem;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:.78rem;font-family:var(--font)}
.option-row input:focus{outline:none;border-color:var(--primary)}
.del-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:.82rem;padding:.1rem .3rem;border-radius:4px}
.del-btn:hover{color:var(--danger);background:rgba(255,107,107,0.1)}
.preview-area{display:flex;align-items:center;justify-content:center;min-height:200px;padding:2rem}
.preview-select-wrap{display:inline-block}
.custom-select{position:relative;display:inline-block}
.custom-select-trigger{display:flex;align-items:center;justify-content:space-between;gap:.5rem;cursor:pointer;border:1px solid rgba(255,255,255,.15);transition:all 150ms}
.custom-select-trigger:hover{border-color:rgba(255,255,255,.3)}
.custom-select-trigger .arrow{font-size:.65rem;opacity:.6;transition:transform 200ms}
.custom-select.open .arrow{transform:rotate(180deg)}
.custom-select-dropdown{position:absolute;top:100%;left:0;right:0;margin-top:4px;border:1px solid rgba(255,255,255,.1);max-height:200px;overflow-y:auto;z-index:10;opacity:0;transform:translateY(-6px);pointer-events:none;transition:all 200ms}
.custom-select.open .custom-select-dropdown{opacity:1;transform:translateY(0);pointer-events:all}
.custom-select-option{cursor:pointer;transition:background 100ms}
.custom-select-option:hover{filter:brightness(1.3)}
.custom-select-option.selected{font-weight:600}
.a11y-report{font-size:.75rem;color:var(--text-dim)}
.a11y-pass{color:var(--success)}
.a11y-warn{color:var(--warning)}
.a11y-fail{color:var(--danger)}
.code-tab{padding:.2rem .5rem;font-size:.72rem;font-weight:600;border:1px solid var(--glass-border);border-radius:6px;background:transparent;color:var(--text-dim);cursor:pointer;font-family:var(--font);transition:all 150ms}
.code-tab.active{background:rgba(225,112,85,0.15);border-color:var(--primary);color:var(--primary-light)}
.code-output{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);padding:.75rem;font-family:var(--mono);font-size:.75rem;color:var(--text-dim);overflow-x:auto;white-space:pre;line-height:1.5;max-height:250px;overflow-y:auto}
.btn{display:inline-flex;align-items:center;gap:.25rem;padding:.4rem .75rem;border:none;border-radius:var(--radius-sm);font-size:.78rem;font-weight:600;font-family:var(--font);cursor:pointer;transition:all var(--transition)}
.btn-accent{background:rgba(0,206,201,0.15);color:var(--accent);border:1px solid rgba(0,206,201,0.2)}
.btn-accent:hover{background:rgba(0,206,201,0.25)}
.btn-sm{font-size:.72rem;padding:.25rem .45rem}
.full-width{width:100%}
.footer{padding:1rem 2rem;text-align:center;font-size:.78rem;color:var(--text-muted);border-top:1px solid var(--border)}
.toast-container{position:fixed;bottom:1.5rem;right:1.5rem;z-index:200;display:flex;flex-direction:column;gap:.5rem}
.toast{background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--accent);backdrop-filter:blur(20px);border-radius:var(--radius-sm);padding:.75rem 1rem;font-size:.82rem;color:var(--text);box-shadow:0 8px 40px rgba(0,0,0,0.4);animation:slideIn 300ms ease;max-width:320px}
::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(225,112,85,0.25);border-radius:3px}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
@media(max-width:768px){.layout{grid-template-columns:1fr}}