:root {
  /* Amber Gold Dark Palette */
  --bg-color: #1A1408;
  --bg-sidebar: #221A0A;
  --surface: rgba(36, 28, 12, 0.7);
  --surface-hover: rgba(53, 40, 16, 0.8);
  --border-color: rgba(245, 158, 11, 0.2);
  --border-highlight: rgba(251, 191, 36, 0.4);
  
  --primary: #F59E0B;
  --primary-hover: #D97706;
  --secondary: #FBBF24;
  --accent: #6366F1;
  --danger: #EF4444;
  
  --text-main: #FEF3C7;
  --text-muted: #D4D4D8;
  
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 15px rgba(245, 158, 11, 0.15);
  
  --transition: all 0.2s ease;
  --font-sans: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  overflow: hidden; 
}

/* Utilities */
.hidden { display: none !important; }
.w-full { width: 100%; }
.mt-sm { margin-top: 0.5rem; }
.mt-md { margin-top: 1rem; }
.mt-lg { margin-top: 2rem; }
.mb-md { margin-bottom: 1rem; }
.text-primary { color: var(--secondary); }
.text-secondary { color: var(--text-muted); }
.text-accent { color: var(--accent); }

/* Glassmorphism */
.glass-panel {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

/* Typography */
h1, h2, h3, h4 { color: var(--text-main); font-weight: 600; }

/* Buttons */
button, .btn-primary, .btn-outline {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  background: none;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 500;
  font-size: 0.875rem;
}

.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.8rem; }

.btn-primary {
  background: var(--primary);
  color: #1A1408;
  padding: 0.6rem 1.25rem;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.3);
}
.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.5);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1px solid var(--border-highlight);
  color: var(--text-main);
  padding: 0.6rem 1.25rem;
}
.btn-outline:hover {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--secondary);
}
.action-clear:hover { border-color: var(--danger); color: var(--danger); background: rgba(239, 68, 68, 0.1);}

.icon-button {
  padding: 0.5rem;
  color: var(--text-muted);
  border-radius: 50%;
}
.icon-button:hover { color: var(--text-main); background: rgba(255,255,255,0.1); }

/* Inputs */
input[type="text"], input[type="file"] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  outline: none;
  transition: var(--transition);
}
input:focus { border-color: var(--secondary); box-shadow: var(--shadow-glow); }

.glass-select {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.4rem 2rem 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  outline: none;
  appearance: none;
  /* dropdown arrow inside */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23FBBF24' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
}

input[type="color"] {
  border: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  overflow: hidden;
  padding: 0;
  cursor: pointer;
  background: transparent;
}
input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: 2px solid var(--border-color); border-radius: 50%; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }

/* Toggles */
.toggle-group { display: flex; flex-direction: row; align-items: flex-start; gap: 1rem;}
.toggle-text { display: flex; flex-direction: column; gap: 0.2rem;}
.toggle-text strong { font-size: 0.9rem;}
.toggle-text p { font-size: 0.8rem; margin:0;}
.toggle { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink:0;}
.toggle input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; cursor: pointer; inset: 0;
  background-color: rgba(0,0,0,0.5);
  border: 1px solid var(--border-color);
  transition: .4s;
  border-radius: 24px;
}
.slider:before {
  position: absolute; content: "";
  height: 16px; width: 16px; left: 3px; bottom: 3px;
  background-color: var(--text-muted);
  transition: .4s;
  border-radius: 50%;
}
input:checked + .slider { background-color: rgba(245, 158, 11, 0.3); border-color: var(--primary);}
input:checked + .slider:before { transform: translateX(20px); background-color: var(--primary); }

/* Layout */
.app-layout {
  display: flex; height: 100vh; width: 100vw;
}

.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex; flex-direction: column; z-index: 10; border-radius: 0;
}
.sidebar-header { padding: 1.5rem; }
.logo { display: flex; align-items: center; gap: 0.75rem; }
.logo h2 { font-size: 1.15rem; font-weight: 700; background: linear-gradient(90deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent;}

.sidebar-menu { flex: 1; padding: 0 1rem; }
.nav-list { list-style: none; display: flex; flex-direction: column; gap: 0.25rem; }
.nav-item {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
  display: flex; align-items: center; gap: 0.75rem;
}
.nav-item:hover { background: rgba(255,255,255,0.05); color: var(--text-main); }
.nav-item.active { background: rgba(245, 158, 11, 0.15); color: var(--secondary); border-left: 3px solid var(--primary); }

.sidebar-footer { padding: 1.5rem; }

.workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.workspace-header {
  border-radius: 0; border-left: none; border-right: none; border-top: none;
  padding: 1rem 2rem;
  display: flex; justify-content: space-between; align-items: center;
}

.header-stats { display: flex; gap: 1rem; align-items: center; font-weight: 500;}
.header-stats .divider { color: var(--border-color); }

/* Views */
.view-panel {
  flex: 1; padding: 2rem; display: none; overflow-y: auto; height: 100%;
}
.view-panel.active { display: block; }
.view-panel::-webkit-scrollbar { width: 6px; }
.view-panel::-webkit-scrollbar-thumb { background: var(--border-highlight); border-radius: 4px; }

.section-header { margin-bottom: 1.5rem; display: flex; justify-content: space-between; align-items:flex-end;}
.pb-border { padding-bottom: 1rem; border-bottom: 1px solid var(--border-color);}

/* Upload View */
.split-layout {
  display: grid; grid-template-columns: 2fr 1fr; gap: 2rem;
}
.upload-area {
  border: 2px dashed var(--border-highlight);
  background: rgba(0,0,0,0.2);
  display: flex; align-items: center; justify-content: center;
  min-height: 300px;
  cursor: pointer;
  transition: var(--transition);
}
.upload-area.dragover {
  border-color: var(--primary);
  background: rgba(245, 158, 11, 0.1);
}
.upload-content {
  display: flex; flex-direction: column; align-items: center; gap: 1rem; pointer-events: none;
}
.upload-icon-wrapper {
  background: rgba(245, 158, 11, 0.1);
  padding: 1rem; border-radius: 50%; color: var(--primary);
}

.settings-area { padding: 1.5rem; }

.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.file-card {
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex; align-items: center; gap: 0.75rem;
  font-size: 0.85rem;
}
.file-card svg.thumb { width: 32px; height: 32px; flex-shrink: 0; }
.file-name { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Preview View */
.filter-group { display: flex; gap: 1rem; align-items: center;}
.filter-group input[type="text"] { width: 250px; }

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1.5rem;
  padding: 1rem 0;
}
.preview-item {
  display: flex; flex-direction: column; align-items: center; gap: 0.75rem;
  padding: 1.5rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
}
.preview-item:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-glow); border-color: var(--secondary);
}
.preview-item svg { transition: var(--transition); }
.preview-item-name { font-size: 0.75rem; color: var(--text-muted); text-align: center; word-break: break-all;}
.empty-state { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 4rem 1rem; color: var(--text-muted); text-align: center;}

/* Code View */
.code-block-wrapper {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #282c34; /* Atom dark bg */
}
.code-header {
  background: #1e2227;
  padding: 0.5rem 1rem;
  display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid #181a1f;
}
.code-lang { font-size: 0.75rem; color: #828997; text-transform: uppercase; font-weight: 600; letter-spacing: 0.5px;}
.code-block-wrapper pre { margin: 0; padding: 1rem; overflow-x: auto; font-size: 0.9rem;}

.framework-tabs { display: flex; gap: 0.5rem; border-bottom: 1px solid var(--border-color); padding-bottom: 1px; margin-bottom: 1.5rem;}
.framework-tabs .tab-btn {
  border: none; background: transparent; color: var(--text-muted);
  padding: 0.5rem 1rem; border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  border-bottom: 2px solid transparent;
}
.framework-tabs .tab-btn:hover { color: var(--text-main); background: rgba(255,255,255,0.05); }
.framework-tabs .tab-btn.active { color: var(--secondary); border-bottom-color: var(--primary); background: rgba(245, 158, 11, 0.1); }

.snippet-pane { display: none; }
.snippet-pane.active { display: block; }

/* Toast */
.toast {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%);
  background: var(--text-main); color: var(--bg-color);
  padding: 0.75rem 1.5rem; border-radius: 999px;
  font-size: 0.875rem; font-weight: 600; box-shadow: var(--shadow-sm); z-index: 2000;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s;
}
.toast.hidden { transform: translateX(-50%) translateY(20px); opacity: 0; pointer-events: none; }

@media(max-width: 900px) {
  .app-layout { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border-color); flex-direction: row; align-items: center; justify-content: space-between; padding: 0.5rem 1rem;}
  .sidebar-header, .sidebar-footer { padding: 0.5rem; width: auto;}
  .logo h2 { display: none; }
  .sidebar-menu { display: none; }
  .split-layout { grid-template-columns: 1fr; }
  .upload-area { min-height: 200px; }
}