/* ========================================
   AVIF to JPG Converter Styles
   ======================================== */

/* --- CSS Variables for Dark Mode --- */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --text-primary: #212529;
  --text-secondary: #495057;
  --text-muted: #6c757d;
  --border-color: #ced4da;
  --border-light: #e9ecef;
  --accent-color: #007bff;
  --accent-hover: #0069d9;
  --success-bg: #d4edda;
  --success-border: #c3e6cb;
  --success-text: #155724;
  --danger-color: #dc3545;
  --danger-hover: #c82333;
  --success-color: #28a745;
  --success-hover: #218838;
  --card-shadow: 0 2px 4px rgba(0,0,0,0.03);
  --card-hover-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

[data-theme="dark"] {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-tertiary: #0f3460;
  --text-primary: #e8e8e8;
  --text-secondary: #b0b0b0;
  --text-muted: #888888;
  --border-color: #333355;
  --border-light: #2a2a4a;
  --accent-color: #4da6ff;
  --accent-hover: #3399ff;
  --success-bg: #1a3a2a;
  --success-border: #2a5a3a;
  --success-text: #88cc88;
  --danger-color: #ff5555;
  --danger-hover: #ff3333;
  --success-color: #44bb66;
  --success-hover: #33aa55;
  --card-shadow: 0 2px 4px rgba(0,0,0,0.2);
  --card-hover-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* --- Base --- */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px 40px;
}

.section {
  background-color: var(--bg-primary);
  padding: 25px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: var(--card-shadow);
}

.section h2 {
  font-size: 22px;
  color: var(--text-primary);
  margin-bottom: 15px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

.section p {
  margin-bottom: 12px;
  color: var(--text-secondary);
}

/* --- Page Title --- */
.page-title-wrapper {
  background-color: var(--bg-secondary);
  padding: 20px 25px;
  margin: 0 auto;
  max-width: 1200px;
}

.page-title-wrapper h1 {
  font-size: 32px;
  color: var(--text-primary);
  margin: 0 0 8px 0;
  line-height: 1.3;
}

.page-title-wrapper p {
  font-size: 18px;
  color: var(--text-muted);
  margin: 0 0 12px 0;
}

.page-title-wrapper .page-subdesc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
  max-width: 900px;
}

@media (max-width: 768px) {
  .page-title-wrapper h1 { font-size: 24px; }
  .page-title-wrapper p { font-size: 16px; }
}

/* --- Converter Section --- */
.converter-section {
  background-color: var(--bg-primary);
  border-radius: 8px;
  padding: 25px;
  box-shadow: var(--card-shadow);
  margin-bottom: 20px;
}

.converter-section h2 {
  font-size: 22px;
  color: var(--text-primary);
  margin-bottom: 15px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

/* --- Upload Area --- */
.upload-area {
  background-color: var(--bg-secondary);
  border: 2px dashed var(--border-color);
  border-radius: 8px;
  padding: 30px 20px;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  margin-bottom: 20px;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.upload-area:hover,
.upload-area.dragover {
  background-color: var(--bg-tertiary);
  border-color: var(--accent-color);
}

.upload-icon { font-size: 40px; margin-bottom: 15px; }

.upload-text {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0 0 10px 0;
}

.upload-hint {
  font-size: 14px;
  color: var(--text-muted);
  margin: 10px 0;
}

.upload-btn {
  display: inline-block;
  background-color: var(--accent-color);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
  margin-top: 10px;
}

.upload-btn:hover { background-color: var(--accent-hover); }

.upload-limit {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 15px;
}

/* --- File List --- */
.file-list { margin-bottom: 20px; }

.file-item {
  background-color: var(--bg-secondary);
  border-radius: 6px;
  padding: 12px 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.file-item:last-child { margin-bottom: 0; }

.file-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.file-icon { font-size: 24px; }

.file-details {
  display: flex;
  flex-direction: column;
}

.file-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-size {
  font-size: 12px;
  color: var(--text-muted);
}

.file-type {
  font-size: 11px;
  color: var(--success-color);
  background: var(--success-bg);
  padding: 2px 6px;
  border-radius: 4px;
  margin-top: 2px;
}

.file-status {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  margin-top: 2px;
  margin-left: 6px;
}

.file-status.pending {
  color: var(--text-muted);
  background: var(--bg-tertiary);
}

.file-status.converting {
  color: var(--accent-color);
  background: rgba(0, 123, 255, 0.1);
}

.file-status.done {
  color: var(--success-color);
  background: var(--success-bg);
}

.file-status.error {
  color: var(--danger-color);
  background: rgba(220, 53, 69, 0.1);
}

.file-remove {
  background-color: var(--danger-color);
  border: none;
  border-radius: 4px;
  padding: 6px 12px;
  color: #fff;
  font-size: 12px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.file-remove:hover { background-color: var(--danger-hover); }

/* --- Options --- */
.options-section {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  margin-bottom: 15px;
}

.options-extra {
  margin-bottom: 20px;
  padding: 12px 15px;
  background-color: var(--bg-secondary);
  border-radius: 6px;
}

.option-group {
  flex: 1;
  min-width: 200px;
}

.option-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-secondary);
}

.option-label span:first-child { min-width: 100px; }

.option-label input[type="range"] {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--border-color);
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.option-label input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
}

.option-label input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
  border: none;
}

.option-label #qualityValue {
  min-width: 50px;
  text-align: right;
  font-weight: 600;
  color: var(--text-primary);
}

.option-label select {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent-color);
}

/* --- Action Section --- */
.action-section {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.convert-btn {
  background-color: var(--accent-color);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
}

.convert-btn:hover:not(:disabled) { background-color: var(--accent-hover); }

.convert-btn:disabled {
  background-color: var(--text-muted);
  cursor: not-allowed;
}

/* --- Progress --- */
.progress-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--success-color));
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progress-container span {
  font-size: 14px;
  color: var(--text-secondary);
}

/* --- Results --- */
.results-container {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
}

.results-container h3 {
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: 15px;
}

.results-list { margin-bottom: 15px; }

.result-item {
  background-color: var(--bg-secondary);
  border-radius: 6px;
  padding: 15px;
  margin-bottom: 10px;
}

.result-item:last-child { margin-bottom: 0; }

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.result-filename {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.result-download {
  background-color: var(--accent-color);
  border: none;
  border-radius: 4px;
  padding: 6px 12px;
  color: #fff;
  font-size: 13px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.result-download:hover { background-color: var(--accent-hover); }

.result-stats {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

.stat-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.stat-diff { font-weight: 700; }
.stat-diff.positive { color: var(--danger-color); }
.stat-diff.negative { color: var(--success-color); }

.results-summary {
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
  border-radius: 6px;
  padding: 12px 15px;
  margin-bottom: 15px;
}

.results-summary p {
  font-size: 14px;
  color: var(--success-text);
  margin: 0;
}

.results-summary span { font-weight: 600; }

.download-all-btn {
  background-color: var(--success-color);
  border: none;
  border-radius: 6px;
  padding: 12px 24px;
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s;
  width: 100%;
}

.download-all-btn:hover { background-color: var(--success-hover); }

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-hover-shadow);
}

.feature-icon { font-size: 36px; margin-bottom: 12px; }

.feature-card h3 {
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* --- Section Content --- */
.container .section h3 {
  font-size: 18px;
  color: var(--text-primary);
  margin: 20px 0 12px 0;
}

.container .section ul {
  margin-left: 20px;
  margin-bottom: 15px;
}

.container .section ul li {
  list-style: disc;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.container .section code {
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 14px;
  color: var(--danger-color);
}

/* --- Comparison Table --- */
.comparison-table {
  overflow-x: auto;
  margin-top: 15px;
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 8px;
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  font-size: 14px;
}

.comparison-table th {
  background-color: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
}

.comparison-table td {
  color: var(--text-secondary);
}

.comparison-table tr:hover {
  background-color: var(--bg-secondary);
}

/* --- Use Cases --- */
.use-cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.use-case-card {
  background: var(--bg-secondary);
  border-radius: 8px;
  padding: 20px;
  border-left: 4px solid var(--accent-color);
}

.use-case-icon { font-size: 28px; margin-bottom: 10px; }

.use-case-card h3 {
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.use-case-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* --- Steps List --- */
.steps-list {
  background-color: var(--bg-secondary);
  border-radius: 8px;
  padding: 20px 20px 20px 40px;
  margin: 0 0 15px 0;
}

.steps-list li {
  margin-bottom: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  font-size: 15px;
  list-style: decimal;
}

.steps-list li:last-child { margin-bottom: 0; }
.steps-list li strong { color: var(--text-primary); }

/* --- Security Note --- */
.security-note {
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
  border-radius: 6px;
  padding: 12px 15px;
  font-size: 14px;
  color: var(--success-text);
  line-height: 1.5;
}

.security-note strong { color: var(--accent-color); }

/* --- Privacy Badge --- */
.privacy-badge {
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
  border-radius: 6px;
  padding: 12px 15px;
  margin-top: 15px;
  font-size: 14px;
  color: var(--success-text);
  font-weight: 500;
}

.privacy-badge strong { color: var(--accent-color); }

/* --- Related Tools --- */
.related-tools {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}

.related-tool-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 15px;
  text-decoration: none;
  transition: all 0.2s;
  display: block;
}

.related-tool-card:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--accent-color);
  transform: translateY(-2px);
}

.related-tool-card h3 {
  font-size: 15px;
  color: var(--accent-color);
  margin-bottom: 5px;
}

.related-tool-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}

/* --- FAQ --- */
.faq-item {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.faq-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.faq-item h3 {
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.faq-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Dark Mode Toggle --- */
.dark-mode-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  transition: all 0.3s ease;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dark-mode-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}

[data-theme="dark"] .dark-mode-toggle {
  background-color: var(--bg-tertiary);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .converter-section { padding: 15px; }

  .upload-area {
    padding: 25px 15px;
    min-height: 150px;
  }

  .upload-icon { font-size: 32px; }
  .upload-text { font-size: 15px; }

  .options-section {
    flex-direction: column;
    gap: 15px;
  }

  .option-label {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .option-label span:first-child { min-width: auto; }

  .result-header {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .result-download { width: 100%; }

  .result-stats { gap: 12px; }

  .features-grid { grid-template-columns: 1fr; }
  .use-cases { grid-template-columns: 1fr; }
  .related-tools { grid-template-columns: 1fr; }

  .upload-btn,
  .convert-btn,
  .download-all-btn {
    width: 100%;
    margin: 0 0 8px 0;
  }
}

@media (max-width: 576px) {
  .file-item {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .file-remove { width: 100%; }

  .privacy-badge {
    font-size: 13px;
    padding: 10px 12px;
  }

  .comparison-table { font-size: 13px; }

  .comparison-table th,
  .comparison-table td {
    padding: 10px 12px;
  }
}