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#0000004d}.theme-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border-color)}.theme-header h2{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0}.close-theme-btn{background:transparent;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;padding:4px 8px;line-height:1;transition:color .2s ease}.close-theme-btn:hover{color:var(--text-primary)}.theme-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px;padding:24px;overflow-y:auto}.theme-card{background:var(--bg-primary);border:2px solid var(--border-color);border-radius:12px;padding:12px;cursor:pointer;transition:all .2s ease;position:relative}.theme-card:hover{transform:translateY(-4px);box-shadow:0 4px 12px #0003;border-color:var(--accent-primary)}.theme-card.active{border-color:var(--accent-primary);box-shadow:0 0 0 3px 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.theme-preview-content{background:#0a1929}.theme-preview.ocean .theme-preview-line{background:#b3d9f2}.theme-preview.forest{background:#0d1b0d}.theme-preview.forest .theme-preview-header{background:#162916}.theme-preview.forest .theme-preview-content{background:#0d1b0d}.theme-preview.forest .theme-preview-line{background:#c8e6c9}.theme-preview.sunset{background:#1a0f0a}.theme-preview.sunset .theme-preview-header{background:#2a1810}.theme-preview.sunset .theme-preview-content{background:#1a0f0a}.theme-preview.sunset .theme-preview-line{background:#ffe0b2}.theme-preview.purple{background:#1a0a1f}.theme-preview.purple .theme-preview-header{background:#2a1533}.theme-preview.purple .theme-preview-content{background:#1a0a1f}.theme-preview.purple .theme-preview-line{background:#e1bee7}.theme-name{text-align:center;font-size:.875rem;font-weight:500;color:var(--text-primary)}.theme-checkmark{position:absolute;top:8px;right:8px;background:var(--accent-primary);color:#fff;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700}.theme-grid::-webkit-scrollbar{width:8px}.theme-grid::-webkit-scrollbar-track{background:var(--bg-secondary)}.theme-grid::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.theme-grid::-webkit-scrollbar-thumb:hover{background:var(--accent-primary)}@media(max-width:640px){.theme-panel{width:95%;max-height:90vh}.theme-grid{grid-template-columns:repeat(2,1fr);gap:12px;padding:16px}.theme-preview{height:70px}}.source-overlay{position:fixed;inset:0;background:#00000080;z-index:1000;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.source-panel{background:var(--bg-secondary);border:1px 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