:root {
  --primary: #F39C12;
  --primary-dim: rgba(243,156,18,0.12);
  --secondary: #FFEAA7;
  --accent: #00CEC9;
  --accent-dim: rgba(0,206,201,0.12);
  --bg: #1A150A;
  --bg-input: rgba(14,10,4,0.9);
  --border: rgba(243,156,18,0.1);
  --border-hover: rgba(243,156,18,0.2);
  --text: #E2E8F0;
  --text-dim: #94A3B8;
  --text-muted: #64748B;
  --radius: 12px;
  --radius-sm: 8px;
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --transition: 250ms ease;
  --glass: rgba(26,21,10,0.65);
  --glass-border: rgba(243,156,18,0.08);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font); background: var(--bg); color: var(--text);
  min-height: 100vh; line-height: 1.6;
  background-image:
    radial-gradient(ellipse at 20% 10%, rgba(243,156,18,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 90%, rgba(0,206,201,0.03) 0%, transparent 50%);
}
.app { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; flex-direction: column; min-height: 100vh; }

.header { padding: 16px 0; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.header-left { display: flex; align-items: center; gap: 12px; }
.logo { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; }
.header h1 { font-size: 1.2rem; font-weight: 700; background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 18px; border-radius: var(--radius-sm); border: none; font-family: var(--font); font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--primary); color: #1A150A; }
.btn-primary:hover:not(:disabled) { background: #E68A00; transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-accent { background: var(--accent); color: #0A150A; }
.btn-accent:hover { background: #00B5B0; transform: translateY(-1px); }
.btn-full { width: 100%; justify-content: center; margin-top: 10px; }
.link-btn { background: none; border: none; color: var(--primary); cursor: pointer; text-decoration: underline; font-size: 0.85rem; }

.main { flex: 1; display: grid; grid-template-columns: 340px 1fr; gap: 16px; padding: 16px 0; align-items: start; }

.panel { background: var(--glass); backdrop-filter: blur(12px); border: 1px solid var(--glass-border); border-radius: var(--radius); display: flex; flex-direction: column; overflow: hidden; animation: fadeIn 0.3s ease; }
.panel-header { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.panel-header h2 { font-size: 0.88rem; font-weight: 600; }
.panel-body { padding: 16px; flex: 1; }

.divider { border: none; border-top: 1px solid var(--border); margin: 14px 0; }
.section-title { font-size: 0.78rem; font-weight: 600; color: var(--text-dim); margin-bottom: 8px; }
.empty-msg { font-size: 0.78rem; color: var(--text-muted); }

/* Drop Zone */
.drop-zone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 30px; text-align: center; cursor: pointer; transition: all var(--transition); }
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--primary); background: var(--primary-dim); }
.drop-icon { font-size: 2.5rem; margin-bottom: 8px; }
.drop-hint { font-size: 0.72rem; color: var(--text-muted); margin-top: 4px; }
.source-preview { width: 100%; max-width: 200px; margin: 10px auto; display: block; border-radius: var(--radius-sm); border: 1px solid var(--border); }

/* Tab Mockup */
.tab-preview { margin-top: 8px; }
.tab-mockup { background: #2A2520; border-radius: var(--radius-sm) var(--radius-sm) 0 0; overflow: hidden; border: 1px solid var(--border); }
.tab-bar { display: flex; padding: 4px 4px 0; gap: 2px; background: #1E1A14; }
.tab { padding: 6px 12px; font-size: 0.72rem; color: var(--text-muted); border-radius: 6px 6px 0 0; display: flex; align-items: center; gap: 6px; }
.active-tab { background: #2A2520; color: var(--text); }
.tab-favicon, .address-favicon { width: 14px; height: 14px; border-radius: 2px; }
.tab-address-bar { padding: 6px 12px; font-size: 0.72rem; color: var(--text-dim); display: flex; align-items: center; gap: 6px; background: #1E1A14; margin: 4px 8px 8px; border-radius: 6px; }

/* Icons Grid */
.icons-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; }
.icon-card { padding: 10px; background: var(--bg-input); border-radius: var(--radius-sm); border: 1px solid var(--border); text-align: center; cursor: pointer; transition: all var(--transition); }
.icon-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.icon-card img { max-width: 100%; border-radius: 4px; }
.icon-card canvas { max-width: 100%; border-radius: 4px; }
.icon-label { font-size: 0.68rem; color: var(--text-dim); margin-top: 4px; }

/* Code Block */
.code-block { position: relative; background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.code-block pre { padding: 12px; overflow-x: auto; font-family: var(--mono); font-size: 0.72rem; line-height: 1.6; color: var(--text-dim); margin: 0; }
.copy-btn { position: absolute; top: 6px; right: 6px; background: var(--primary-dim); border: 1px solid var(--border); color: var(--text-dim); font-size: 0.72rem; padding: 4px 8px; border-radius: 4px; cursor: pointer; transition: all var(--transition); }
.copy-btn:hover { color: var(--text); background: var(--primary-dim); }

.footer { padding: 16px 0; text-align: center; font-size: 0.72rem; color: var(--text-muted); border-top: 1px solid var(--border); margin-top: auto; }

.hidden { display: none !important; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 3px; }
@media (max-width: 800px) { .main { grid-template-columns: 1fr; } }