:root {
  --c-bg: #1a0a0a;
  --c-surface: #1e1010;
  --c-surface-2: #2a1515;
  --c-border: #3d2020;
  --c-primary: #d63031;
  --c-primary-light: #ff7675;
  --c-primary-dim: rgba(214,48,49,0.1);
  --c-accent: #00cec9;
  --c-accent-dim: rgba(0,206,201,0.1);
  --c-text: #f1e0e0;
  --c-text-dim: #b89999;
  --c-text-muted: #8a6666;
  --c-success: #00b894;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --font-sans: 'Inter',system-ui,sans-serif;
  --font-mono: 'JetBrains Mono',monospace;
  --transition: 200ms ease;
  --shadow: 0 4px 24px rgba(0,0,0,0.6);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--font-sans);background:var(--c-bg);color:var(--c-text);line-height:1.6;min-height:100vh;background-image:radial-gradient(ellipse at 20% 0%,rgba(214,48,49,0.05) 0%,transparent 60%),radial-gradient(ellipse at 80% 100%,rgba(0,206,201,0.03) 0%,transparent 60%)}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--c-border);border-radius:3px}
::selection{background:var(--c-primary-dim);color:var(--c-primary)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
#app-header{position:sticky;top:0;z-index:100;background:rgba(30,16,16,0.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--c-border)}
.header-inner{max-width:900px;margin:0 auto;padding:0.75rem 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.logo-group{display:flex;align-items:center;gap:0.6rem}
.logo-icon{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--c-primary-dim);color:var(--c-primary)}
h1{font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.btn{display:inline-flex;align-items:center;gap:0.35rem;padding:0.45rem 0.9rem;font-size:0.8125rem;font-weight:500;font-family:var(--font-sans);border:none;border-radius:var(--radius-xs);cursor:pointer;transition:all var(--transition);white-space:nowrap}
.btn:disabled{opacity:0.4;cursor:not-allowed}
.btn-primary{background:linear-gradient(135deg,var(--c-primary),#b71c1c);color:#fff;font-weight:600}
.btn-primary:hover:not(:disabled){filter:brightness(1.15);transform:translateY(-1px);box-shadow:0 3px 12px rgba(214,48,49,0.3)}
.btn-outline{background:transparent;color:var(--c-text-dim);border:1px solid var(--c-border)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-dim)}
.btn-ghost{background:transparent;color:var(--c-text-dim)}
.btn-ghost:hover{background:var(--c-surface-2);color:var(--c-text)}
.btn-sm{padding:0.3rem 0.6rem;font-size:0.75rem}
.action-group{display:flex;gap:0.35rem}
#app-main{max-width:900px;margin:0 auto;padding:1.5rem;display:flex;flex-direction:column;gap:1.25rem;position:relative}
.panel-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius);padding:1.25rem}
.panel-card h2{font-size:0.8125rem;font-weight:600;color:var(--c-text-muted);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:0.75rem}
.panel-title-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:0.75rem}
.panel-title-row h2{margin-bottom:0}
.hidden{display:none !important}
.code-textarea{width:100%;padding:0.75rem 1rem;font-family:var(--font-mono);font-size:0.8125rem;line-height:1.7;color:var(--c-text);background:var(--c-surface-2);border:1px solid var(--c-border);border-radius:var(--radius-sm);resize:vertical;transition:border-color var(--transition)}
.code-textarea:focus{border-color:var(--c-primary);outline:none}
.code-output{padding:0.75rem 1rem;font-family:var(--font-mono);font-size:0.8125rem;line-height:1.7;color:var(--c-text);background:var(--c-surface-2);border:1px solid var(--c-border);border-radius:var(--radius-sm);overflow-x:auto;white-space:pre;tab-size:2}
.input-meta{display:flex;justify-content:space-between;align-items:center;margin-top:0.5rem}
.input-meta span{font-size:0.6875rem;color:var(--c-text-muted);font-family:var(--font-mono)}
.css-prop{color:var(--c-accent)}.css-val{color:var(--c-primary-light)}.css-sel{color:var(--c-primary);font-weight:600}.css-comment{color:var(--c-text-muted);font-style:italic}.css-bracket{color:var(--c-text-dim)}
.details-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.breakdown-list{display:flex;flex-direction:column;gap:0.35rem;max-height:350px;overflow-y:auto}
.breakdown-item{display:flex;justify-content:space-between;align-items:center;padding:0.4rem 0.6rem;background:var(--c-surface-2);border-radius:var(--radius-xs);border:1px solid var(--c-border);font-size:0.75rem}
.tw-class{font-family:var(--font-mono);color:var(--c-primary-light);font-weight:500}
.css-prop-short{font-family:var(--font-mono);color:var(--c-accent);font-size:0.6875rem}
.variant-badge{padding:0.1rem 0.3rem;font-size:0.5625rem;font-weight:600;border-radius:3px;text-transform:uppercase}
.variant-badge.responsive{background:rgba(99,102,241,0.15);color:#818cf8}
.variant-badge.dark{background:rgba(139,92,246,0.15);color:#a78bfa}
.variant-badge.pseudo{background:rgba(245,158,11,0.15);color:#fbbf24}
.specificity-info{display:flex;flex-direction:column;gap:0.5rem}
.spec-row{display:flex;justify-content:space-between;align-items:center;padding:0.5rem 0.6rem;background:var(--c-surface-2);border-radius:var(--radius-xs)}
.spec-label{font-size:0.75rem;color:var(--c-text-dim)}
.spec-value{font-family:var(--font-mono);font-size:0.8125rem;font-weight:600;color:var(--c-accent)}
.examples-dropdown{position:absolute;top:0;right:1.5rem;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--radius-sm);box-shadow:var(--shadow);padding:0.35rem;display:flex;flex-direction:column;z-index:200;animation:fadeIn 150ms ease}
.example-item{padding:0.5rem 0.75rem;font-size:0.8125rem;font-family:var(--font-sans);color:var(--c-text-dim);background:none;border:none;text-align:left;cursor:pointer;border-radius:var(--radius-xs);transition:all var(--transition)}
.example-item:hover{background:var(--c-primary-dim);color:var(--c-primary-light)}
#toast-container{position:fixed;bottom:1.5rem;right:1.5rem;display:flex;flex-direction:column;gap:0.5rem;z-index:1000}
.toast{padding:0.6rem 1rem;font-size:0.8125rem;border-radius:var(--radius-sm);background:var(--c-surface-2);border:1px solid var(--c-border);color:var(--c-text);box-shadow:var(--shadow);animation:fadeIn 250ms ease;max-width:300px}
.toast.success{border-left:3px solid var(--c-success)}.toast.error{border-left:3px solid var(--c-primary)}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:700px){.details-grid{grid-template-columns:1fr}.header-inner{flex-direction:column;align-items:flex-start}}