:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --background: #0f172a;
  --surface: #1e293b;
  --text: #f8fafc;
  --text-secondary: #94a3b8;
  --success: #22c55e;
  --border: #334155;
  --icon-filter: brightness(0) invert(1);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--background);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 2rem;
  width: 100%;
}

#mobileNav { display: none; }

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(to right, var(--primary), #a855f7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

#tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.tab-button {
  background: var(--surface);
  color: var(--text-secondary);
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.tab-button:hover {
  background: var(--primary-dark);
  color: var(--text);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.tab-button.active {
  background: var(--primary);
  color: var(--text);
  border-color: var(--primary);
}

.tabcontent {
  display: none;
  background: var(--surface);
  padding: 2rem;
  border-radius: 16px;
  border: 2px solid var(--border);
  width: 100%;
  max-width: 800px;
}

.tabcontent.active {
  display: block;
}

.input-group {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

input[type="file"] {
  background: var(--surface);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  flex: 1;
  min-width: 200px;
}

input[type="file"]:hover {
  border-color: var(--primary);
}

input[type="number"] {
  background: var(--surface);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  font-size: 1rem;
  width: 150px;
  transition: all 0.3s ease;
}

input[type="number"]:focus {
  border-color: var(--primary);
  outline: none;
}

select {
  background: var(--surface);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

select:hover {
  border-color: var(--primary);
}

button {
  background: var(--primary);
  color: var(--text);
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  border: none;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

canvas {
  border: 2px solid var(--border);
  border-radius: 12px;
  margin: 1.5rem 0;
  max-width: 100%;
  transition: all 0.3s ease;
}

canvas:hover {
  border-color: var(--primary);
}

a.download-link {
  background: var(--success);
  color: var(--text);
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  font-weight: 500;
  display: inline-block;
  transition: all 0.3s ease;
  margin-top: 1rem;
}

a.download-link:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
}

#outputList {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 1rem 0;
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.3s ease forwards;
}

.audio-preview {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 12px;
  border: 2px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.audio-preview audio {
  width: 100%;
  max-width: 500px;
  border-radius: 8px;
  background: var(--background);
}

.audio-preview audio::-webkit-media-controls-panel {
  background: var(--surface);
}

.audio-preview audio::-webkit-media-controls-current-time-display,
.audio-preview audio::-webkit-media-controls-time-remaining-display {
  color: var(--text);
}

/* Video Creator Styles */
.image-list {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 12px;
  border: 2px solid var(--border);
}

.image-list h3 {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.image-items {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  max-height: 300px;
  overflow-y: auto;
  padding: 0.5rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--background);
}

.image-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 8px;
  cursor: move;
  transition: all 0.3s ease;
  user-select: none;
}

.image-item:hover {
  border-color: var(--primary);
  transform: translateX(4px);
}

.image-item.dragging {
  opacity: 0.5;
  transform: rotate(2deg);
}

.image-item img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.image-item-info {
  flex: 1;
  min-width: 0;
}

.image-item-name {
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.image-item-size {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.image-item-index {
  background: var(--primary);
  color: var(--text);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.generate-btn {
  background: var(--success);
  width: 100%;
  font-size: 1.1rem;
  padding: 1rem;
}

.generate-btn:hover {
  background: #16a34a;
}

.video-preview {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 12px;
  border: 2px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.video-preview video {
  max-width: 100%;
  border-radius: 12px;
  margin-top: 1rem;
}

/* Scrollbar styling for image list */
.image-items::-webkit-scrollbar {
  width: 8px;
}

.image-items::-webkit-scrollbar-track {
  background: var(--background);
  border-radius: 4px;
}

.image-items::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

.image-items::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Spritesheet Styles */
.spritesheet-upload-section {
  margin-bottom: 2rem;
}

.spritesheet-settings {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 12px;
  border: 2px solid var(--border);
}

.spritesheet-settings h3 {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.grid-size-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.spritesheet-options {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.spritesheet-info {
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--background);
  border: 2px solid var(--border);
  border-radius: 8px;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.info-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.info-value {
  font-size: 1rem;
  color: var(--text);
  font-weight: 600;
}

.info-value.warning {
  color: #f59e0b;
}

.spritesheet-grid {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 12px;
  border: 2px solid var(--border);
}

.spritesheet-grid h3 {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.spritesheet-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  padding: 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--background);
  min-height: 200px;
}

.sprite-item {
  position: relative;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem;
  cursor: move;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  min-height: 100px;
}

.sprite-item:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.sprite-item.dragging {
  opacity: 0.5;
  transform: rotate(2deg);
}

.sprite-item.drag-over {
  border-color: var(--success);
  background: rgba(34, 197, 94, 0.1);
}

.sprite-item img {
  max-width: 100%;
  max-height: 60px;
  object-fit: contain;
  border-radius: 4px;
}

.sprite-item-name {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}

.sprite-item-index {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--primary);
  color: var(--text);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  border: 2px solid var(--background);
}

.sprite-placeholder {
  border: 2px dashed var(--border);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: default;
}

.batch-placeholder {
  opacity: 0.5;
}

.batch-header {
  background: var(--primary);
  color: var(--text);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin: 0.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  border: 2px solid var(--primary-dark);
}

.batch-title {
  font-size: 1rem;
  font-weight: 600;
}

.batch-time {
  font-size: 0.875rem;
  opacity: 0.8;
}

.batch-remove-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
  color: var(--text);
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

.batch-remove-btn:hover {
  background: rgba(239, 68, 68, 0.8);
  transform: scale(1.1);
}

.sprite-batch-indicator {
  position: absolute;
  top: -8px;
  left: -8px;
  background: var(--success);
  color: var(--text);
  width: 24px;
  height: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 600;
  border: 2px solid var(--background);
}

.spritesheet-result {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 12px;
  border: 2px solid var(--border);
  text-align: center;
}

.spritesheet-result h3 {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

#spritesheetCanvas {
  max-width: 100%;
  max-height: 600px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--background);
}

#spritesheetCanvas:hover {
  border-color: var(--primary);
}

/* Palette Tool Styles */
.palette-upload-section {
  margin-bottom: 2rem;
}

.palette-settings {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 12px;
  border: 2px solid var(--border);
}

.palette-settings h3 {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.palette-selection {
  margin-bottom: 1.5rem;
}

.palette-preview {
  margin-top: 1rem;
}

.palette-preview h4 {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 1rem;
}

.palette-colors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 1rem;
  background: var(--background);
  border: 2px solid var(--border);
  border-radius: 8px;
  min-height: 60px;
}

.palette-color {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.3s ease;
}

.palette-color:hover {
  transform: scale(1.2);
  border-color: var(--primary);
}

.palette-options {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.palette-comparison {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 12px;
  border: 2px solid var(--border);
}

.palette-comparison h3 {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.comparison-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.image-container {
  text-align: center;
}

.image-container h4 {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 1rem;
}

.image-container canvas {
  max-width: 100%;
  max-height: 400px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: var(--background);
}

.image-container canvas:hover {
  border-color: var(--primary);
}

@media (max-width: 768px) {
  .comparison-container {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  #mobileNav { display: block; }
  #tabs { display: none; }
  .tabcontent { padding: 1.25rem; }
  .input-group { gap: 0.75rem; }
  button, input[type="file"], input[type="number"], select { font-size: 0.95rem; }
}

/* CSV Visualizer Styles */
.csv-preview {
  margin-top: 2rem;
}

.table-container {
  max-height: 300px;
  overflow-y: auto;
  border: 2px solid var(--border);
  border-radius: 12px;
  margin-bottom: 1.5rem;
}

#csvTable {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
}

#csvTable th,
#csvTable td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

#csvTable th {
  background: var(--primary);
  color: var(--text);
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 10;
}

#csvTable tr:hover {
  background: rgba(99, 102, 241, 0.1);
}

.chart-controls {
  margin-bottom: 2rem;
}

.chart-controls label {
  color: var(--text-secondary);
  font-weight: 500;
  margin-right: 0.5rem;
}

.chart-controls select {
  min-width: 120px;
}

.chart-container {
  text-align: center;
  margin-top: 2rem;
}

#chartCanvas {
  max-width: 100%;
  height: auto;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: white;
}

/* Resize Tab Styles */
.resize-upload-section {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  margin-bottom: 1.5rem;
}

.upload-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.upload-controls input[type="file"] {
  background: var(--surface);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  flex: 1;
  min-width: 200px;
}

.upload-controls input[type="file"]:hover {
  border-color: var(--primary);
}

.clear-btn {
  background: var(--surface);
  color: var(--text-secondary);
  padding: 1rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.clear-btn:hover {
  border-color: var(--primary);
  color: var(--text);
}

.file-info {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.resize-settings, .export-settings {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  margin-bottom: 1.5rem;
}

.resize-settings h3, .export-settings h3 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.size-inputs {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.size-inputs .input-group {
  flex: 1;
  min-width: 200px;
}

.size-inputs label {
  display: block;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.size-inputs input[type="number"] {
  width: 100%;
  background: var(--background);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 8px;
  border: 2px solid var(--border);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.size-inputs input[type="number"]:focus {
  border-color: var(--primary);
  outline: none;
}

.size-inputs select {
  background: var(--background);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 8px;
  border: 2px solid var(--border);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-left: 0.5rem;
}

.size-inputs select:hover {
  border-color: var(--primary);
}

.unit-display {
  color: var(--text-secondary);
  font-weight: 500;
  margin-left: 0.5rem;
  align-self: center;
}

.background-fill-section {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.background-options {
  margin-top: 1rem;
  margin-left: 2rem;
  transition: opacity 0.3s ease;
}

.radio-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.radio-group input[type="radio"] {
  accent-color: var(--primary);
}

.radio-group input[type="radio"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.radio-group label:has(input[type="radio"]:disabled) {
  opacity: 0.5;
  cursor: not-allowed;
}

.help-icon {
  color: var(--text-secondary);
  cursor: help;
  margin-left: 0.5rem;
  font-size: 0.875rem;
}

.color-picker-container {
  margin-top: 1rem;
  margin-left: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.color-picker-container input[type="color"] {
  width: 50px;
  height: 40px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: none;
}

.export-btn {
  background: var(--success);
  color: var(--text);
  padding: 1rem 2rem;
  border-radius: 12px;
  border: none;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
  margin-bottom: 2rem;
}

.export-btn:hover {
  background: #16a34a;
  transform: translateY(-2px);
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.image-preview-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  transition: all 0.3s ease;
}

.image-preview-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.image-preview-header {
  position: relative;
  margin-bottom: 1rem;
}

.image-preview-thumbnail {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.image-preview-controls {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  display: flex;
  gap: 0.25rem;
}

.control-btn {
  background: rgba(0, 0, 0, 0.7);
  color: white;
  border: none;
  border-radius: 4px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.3s ease;
}

.control-btn:hover {
  background: var(--primary);
}

.image-preview-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.image-preview-name {
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.image-preview-dimensions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.dimension-arrow {
  color: var(--primary);
  font-weight: bold;
}

.image-preview-status {
  margin-top: 0.5rem;
  padding: 0.5rem;
  border-radius: 6px;
  font-size: 0.875rem;
  text-align: center;
}

.status-ready {
  background: rgba(34, 197, 94, 0.2);
  color: var(--success);
}

.status-processing {
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary);
}

.status-error {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

/* Compression Tab Styles */
.compression-upload-section {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  margin-bottom: 1.5rem;
}

.compression-upload-section .upload-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.compression-upload-section .upload-controls input[type="file"] {
  background: var(--surface);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  flex: 1;
  min-width: 200px;
}

.compression-upload-section .upload-controls input[type="file"]:hover {
  border-color: var(--primary);
}

.file-info-display {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  margin-bottom: 1.5rem;
}

.file-info-display h3 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.file-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.file-detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.file-detail-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.file-detail-value {
  color: var(--text);
  font-weight: 600;
}

.compression-settings {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  margin-bottom: 1.5rem;
}

.compression-settings h3 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.quick-settings {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.quick-settings h4 {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.quick-settings .radio-group {
  margin-bottom: 0.75rem;
}

.quick-settings .radio-group input[type="radio"] {
  accent-color: var(--primary);
}

.quick-settings .radio-group label {
  color: var(--text);
  font-weight: 500;
  cursor: pointer;
}

.advanced-options {
  margin-top: 1.5rem;
}

.advanced-panel {
  margin-top: 1rem;
  padding: 1.5rem;
  background: var(--background);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.media-options {
  margin-bottom: 2rem;
}

.media-options:last-child {
  margin-bottom: 0;
}

.media-options h4 {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.media-options .input-group {
  margin-bottom: 1rem;
}

.media-options label {
  display: block;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.media-options input[type="number"],
.media-options select {
  width: 100%;
  background: var(--surface);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 8px;
  border: 2px solid var(--border);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.media-options input[type="number"]:focus,
.media-options select:focus {
  border-color: var(--primary);
  outline: none;
}

.media-options input[type="number"]:hover,
.media-options select:hover {
  border-color: var(--primary);
}

.compress-btn {
  background: var(--primary);
  color: var(--text);
  padding: 1rem 2rem;
  border-radius: 12px;
  border: none;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
  margin-bottom: 2rem;
}

.compress-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.compress-btn:disabled {
  background: var(--border);
  color: var(--text-secondary);
  cursor: not-allowed;
  transform: none;
}

.compression-results {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
}

.compression-results h3 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.compression-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 1rem;
  background: var(--background);
  border-radius: 8px;
}

.comparison-item {
  text-align: center;
  padding: 1rem;
  background: var(--surface);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.comparison-item h4 {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.comparison-item .file-size {
  color: var(--text);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.comparison-item .compression-ratio {
  color: var(--success);
  font-size: 0.875rem;
  font-weight: 500;
}

.compression-preview {
  margin-bottom: 1.5rem;
  text-align: center;
}

.compression-preview img,
.compression-preview video,
.compression-preview audio {
  max-width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.compression-preview audio {
  width: 100%;
  max-width: 500px;
}

/* Disabled state for quick settings when advanced is enabled */
.quick-settings.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.quick-settings.disabled .radio-group input[type="radio"] {
  cursor: not-allowed;
}

.quick-settings.disabled .radio-group label {
  cursor: not-allowed;
}

/* File Converter Styles */
.converter-upload-section {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  margin-bottom: 1.5rem;
}

.converter-upload-section .upload-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.converter-upload-section .upload-controls input[type="file"] {
  background: var(--surface);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  flex: 1;
  min-width: 200px;
}

.converter-upload-section .upload-controls input[type="file"]:hover {
  border-color: var(--primary);
}

.conversion-options {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  margin-bottom: 1.5rem;
}

.format-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 2rem;
}

.format-category h4 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.format-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.format-btn {
  background: var(--background);
  color: var(--text);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

.format-btn:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  background: var(--primary);
  color: var(--text);
}

.format-btn.selected {
  background: var(--primary);
  color: var(--text);
  border-color: var(--primary);
}

.format-icon {
  font-size: 2rem;
}

.format-name {
  font-weight: 600;
  font-size: 1.1rem;
}

.format-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  opacity: 0.8;
}

.format-settings {
  background: var(--background);
  padding: 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 1.5rem;
}

.format-settings h4 {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.settings-grid .input-group {
  margin-bottom: 0;
}

.settings-grid input[type="range"] {
  width: 100%;
  background: var(--surface);
  border-radius: 8px;
  height: 6px;
  outline: none;
  -webkit-appearance: none;
}

.settings-grid input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
}

.settings-grid input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: none;
}

#qualityValue {
  color: var(--primary);
  font-weight: 600;
  margin-left: 0.5rem;
}

.convert-btn {
  background: var(--success);
  color: var(--text);
  padding: 1rem 2rem;
  border-radius: 12px;
  border: none;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%;
  margin-top: 1.5rem;
}

.convert-btn:hover {
  background: #16a34a;
  transform: translateY(-2px);
}

.convert-btn:disabled {
  background: var(--border);
  color: var(--text-secondary);
  cursor: not-allowed;
  transform: none;
}

.conversion-result {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 12px;
  border: 2px solid var(--border);
  text-align: center;
}

.conversion-result h3 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.result-preview {
  margin-bottom: 1.5rem;
}

.result-preview img {
  max-width: 100%;
  max-height: 300px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.result-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--background);
  border-radius: 8px;
}

.result-details {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.result-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.result-details span:last-child {
  color: var(--text);
  font-weight: 600;
}

/* Footer Styles */
.site-footer {
  background: var(--surface);
  border-top: 2px solid var(--border);
  padding: 1.5rem 0;
  margin-top: auto;
  width: 100%;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.github-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  background: var(--background);
  border: 2px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  transition: all 0.3s ease;
}

.github-link:hover {
  background: var(--primary);
  color: var(--text);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.github-icon {
  width: 24px;
  height: 24px;
  filter: var(--icon-filter);
}

.github-link:hover .github-icon {
  filter: brightness(0) invert(1);
}

/* ICO-specific styles */
.format-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  line-height: 1.4;
}

.ico-size-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.ico-size-category h5 {
  color: var(--text);
  margin-bottom: 1rem;
  font-size: 1rem;
  font-weight: 600;
}

.ico-size-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.ico-size-options .checkbox-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ico-size-options .checkbox-group label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
}

.ico-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

@media (max-width: 768px) {
  .ico-size-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}