/* Favicon Converter — Amber Gold */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

: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-card: #241E12;
  --border: rgba(243,156,18,0.12);
  --text: #F5E6CC;
  --text-dim: #B8A080;
  --text-muted: #6B5A3E;
  --radius: 12px;
  --radius-sm: 8px;
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --transition: 0.2s ease;
}

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; }

.header { border-bottom: 1px solid var(--border); background: rgba(36,30,18,0.95); backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 10; }
.header-inner { max-width: 700px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; }
.header-left { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 1.2rem; width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; background: var(--primary-dim); border-radius: var(--radius-sm); }
.header h1 { font-size: 1.05rem; font-weight: 700; }
.subtitle { font-size: 0.72rem; color: var(--text-dim); }

.main { max-width: 700px; margin: 0 auto; padding: 20px; }

.upload-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); }
.drop-zone { padding: 40px; text-align: center; border: 2px dashed rgba(243,156,18,0.2); border-radius: var(--radius); margin: 12px; cursor: pointer; transition: all var(--transition); }
.drop-zone:hover, .drop-zone.drag-over { border-color: var(--primary); background: rgba(243,156,18,0.04); }
.drop-icon { font-size: 2rem; margin-bottom: 8px; }
.drop-zone p { font-size: 0.82rem; color: var(--text-dim); }
.file-label { color: var(--primary); cursor: pointer; font-weight: 600; }

.preview-section { margin-top: 16px; }
.source-preview { display: flex; align-items: center; gap: 12px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; margin-bottom: 12px; }
.source-preview img { width: 64px; height: 64px; object-fit: contain; border-radius: 6px; background: repeating-conic-gradient(#2a2a2a 0% 25%, #1a1a1a 0% 50%) 50% / 12px 12px; }
.source-info { font-size: 0.75rem; color: var(--text-dim); }

.sizes-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 12px; }
.panel-header { padding: 8px 14px; border-bottom: 1px solid var(--border); }
.panel-label { font-size: 0.72rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.sizes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 8px; padding: 12px; }
.size-cell { text-align: center; padding: 8px; background: rgba(243,156,18,0.04); border-radius: var(--radius-sm); cursor: pointer; transition: background var(--transition); }
.size-cell:hover { background: rgba(243,156,18,0.08); }
.size-cell canvas { display: block; margin: 0 auto 4px; background: repeating-conic-gradient(#2a2a2a 0% 25%, #1a1a1a 0% 50%) 50% / 8px 8px; border-radius: 4px; }
.size-label { font-size: 0.62rem; color: var(--text-muted); }
.size-name { font-size: 0.68rem; font-weight: 600; color: var(--text-dim); }

.actions { display: flex; gap: 8px; }
.btn { padding: 10px 20px; font-family: var(--font); font-size: 0.82rem; font-weight: 600; border: none; border-radius: 8px; cursor: pointer; transition: all var(--transition); }
.btn-primary { background: linear-gradient(135deg, var(--primary), #E67E22); color: #1A150A; flex: 1; }
.btn-primary:hover { box-shadow: 0 4px 16px rgba(243,156,18,0.3); }
.btn-secondary { background: var(--primary-dim); color: var(--primary); border: 1px solid rgba(243,156,18,0.2); }

.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 200; display: flex; flex-direction: column-reverse; gap: 8px; }
.toast { padding: 10px 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-sm); box-shadow: 0 4px 24px rgba(0,0,0,0.5); font-size: 0.82rem; animation: toastIn 0.3s ease; }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }