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

:root {
  --bg-primary: #0e0e10;
  --bg-secondary: #1a1a1e;
  --bg-tertiary: #0e0e10;
  --bg-card: #1a1a1e;
  --bg-input: #0e0e10;
  --bg-hover: #2a2a2e;
  --bg-upload: #0e0e10;
  --bg-search: #1a1a1e;
  --text-primary: #f0f0f5;
  --text-secondary: #e8e8ee;
  --text-muted: #8a8a9a;
  --text-dim: #5a5a6a;
  --border-color: #2a2a2e;
  --border-light: rgba(255, 255, 255, 0.04);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.9);
  --accent: #5865f2;
  --accent-hover: #4752c4;
  --success: #2ecc71;
  --danger: #f04747;
  --warning: #f1c40f;
  --transition: 0.3s;
}

[data-theme="light"] {
  --bg-primary: #f0f2f5;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e8eaed;
  --bg-card: #ffffff;
  --bg-input: #f0f2f5;
  --bg-hover: #e8eaed;
  --bg-upload: #f8f9fa;
  --bg-search: #f0f2f5;
  --text-primary: #1a1a1e;
  --text-secondary: #2d2d30;
  --text-muted: #6a6a7a;
  --text-dim: #8a8a9a;
  --border-color: #d0d0d5;
  --border-light: rgba(0, 0, 0, 0.04);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

body {
  background-color: var(--bg-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px;
  color: var(--text-secondary);
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition), color var(--transition);
}

/* Navbar */
.navbar {
  width: 100%;
  max-width: 640px;
  background-color: var(--bg-secondary);
  border-radius: 16px;
  padding: 12px 20px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
  transition: background-color var(--transition), border-color var(--transition);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
  text-decoration: none;
  padding: 4px 8px;
  margin-right: 20px;
  transition: color var(--transition);
}

.navbar-brand i {
  color: var(--accent);
  font-size: 18px;
}

.navbar-links {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.navbar-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: color 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.navbar-links a:hover {
  color: var(--text-primary);
}

.navbar-links a i {
  font-size: 14px;
}

/* Theme Toggle */
.theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  padding: 6px 12px;
  cursor: pointer;
  color: var(--text-muted);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-family: 'Inter', sans-serif;
}

.theme-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.theme-toggle i {
  font-size: 14px;
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: 24px;
  width: 100%;
  max-width: 640px;
}

.hero h1 {
  color: var(--text-primary);
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 4px;
  transition: color var(--transition);
}

.hero p {
  color: var(--text-muted);
  font-size: 15px;
}

/* Search Section */
.search-section {
  width: 100%;
  max-width: 640px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.search-bar {
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 0 16px;
  border: 2px solid var(--border-color);
  transition: all var(--transition);
  box-shadow: var(--shadow);
}

.search-bar:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(88, 101, 242, 0.15);
}

.search-bar i {
  color: var(--text-dim);
  font-size: 16px;
  margin-right: 12px;
}

.search-bar input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 14px 0;
  color: var(--text-primary);
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: color var(--transition);
}

.search-bar input::placeholder {
  color: var(--text-dim);
}

#clearSearch {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

#clearSearch:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* Category Filters */
.category-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.category-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  padding: 8px 16px;
  color: var(--text-muted);
  font-size: 13px;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.category-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.category-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.category-btn i {
  font-size: 13px;
}

.results-count {
  color: var(--text-dim);
  font-size: 13px;
  text-align: center;
  padding: 4px 0;
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  width: 100%;
  max-width: 640px;
  margin-bottom: 20px;
}

.tool-card-mini {
  background-color: var(--bg-secondary);
  border-radius: 16px;
  padding: 20px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
  transition: all 0.2s;
  text-decoration: none;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
}

.tool-card-mini:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(88, 101, 242, 0.15);
}

.tool-card-mini .icon {
  width: 48px;
  height: 48px;
  background: rgba(88, 101, 242, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent);
  flex-shrink: 0;
}

.tool-card-mini .info h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--text-primary);
}

.tool-card-mini .info p {
  font-size: 12px;
  color: var(--text-muted);
}

/* No Results */
.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  width: 100%;
  max-width: 640px;
}

.no-results i {
  font-size: 48px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.no-results h3 {
  color: var(--text-primary);
  font-size: 20px;
  margin-bottom: 4px;
}

.no-results p {
  font-size: 14px;
}

/* Main Tool Card */
.tool-card {
  background-color: var(--bg-secondary);
  border-radius: 28px;
  padding: 32px;
  max-width: 640px;
  width: 100%;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
  transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.tool-header {
  margin-bottom: 24px;
}

.tool-header h2 {
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
}

.tool-header h2 i {
  color: var(--accent);
}

.tool-subtitle {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 4px;
  margin-left: 40px;
}

.tool-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Upload Area */
.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: 16px;
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: var(--bg-upload);
}

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

.upload-area.drag-over {
  border-color: var(--accent);
  background: var(--bg-hover);
}

.upload-area i {
  font-size: 48px;
  color: var(--accent);
}

.upload-area p {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
}

.upload-hint {
  color: var(--text-dim);
  font-size: 13px;
}

.upload-area input[type="file"] {
  display: none;
}

/* Controls */
.control-group {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

.control-group.two-col {
  grid-template-columns: 1fr 1fr;
}

.control-group.one-col {
  grid-template-columns: 1fr;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input-group label {
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
}

.input-group input,
.input-group select,
.input-group textarea {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: border 0.15s, background var(--transition), color var(--transition);
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(88, 101, 242, 0.1);
}

.input-group select option {
  background: var(--bg-secondary);
}

.input-group textarea {
  min-height: 80px;
  resize: vertical;
}

/* Tool Buttons */
.tool-btn {
  padding: 12px 24px;
  border: none;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tool-btn.primary {
  background: var(--accent);
  color: white;
}

.tool-btn.primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(88, 101, 242, 0.3);
}

.tool-btn.secondary {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

.tool-btn.secondary:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.tool-btn.success {
  background: var(--success);
  color: white;
}

.tool-btn.success:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.tool-btn.danger {
  background: var(--danger);
  color: white;
}

.tool-btn.danger:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.tool-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Preview */
.preview-container {
  background: var(--bg-tertiary);
  border-radius: 12px;
  padding: 16px;
  border: 1px solid var(--border-color);
}

.image-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.image-box {
  background: var(--bg-input);
  border-radius: 12px;
  padding: 12px;
  border: 1px solid var(--border-light);
  text-align: center;
}

.image-label {
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 8px;
}

.image-box img {
  max-width: 100%;
  max-height: 300px;
  border-radius: 8px;
  background: var(--bg-tertiary);
}

.file-size {
  color: var(--text-dim);
  font-size: 12px;
  display: block;
  margin-top: 6px;
}

/* QR Code */
.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 20px;
}

.qr-container canvas {
  background: white;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

/* File List */
.file-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.file-list-header h4 {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.file-list-header h4 i {
  color: var(--accent);
}

#fileCount {
  color: var(--text-dim);
  font-size: 13px;
}

#fileList {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
  max-height: 300px;
  overflow-y: auto;
}

#fileList li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border-radius: 8px;
  margin-bottom: 6px;
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  font-size: 14px;
}

#fileList li i {
  color: var(--accent);
  margin-right: 8px;
}

#fileList .file-size {
  color: var(--text-dim);
  font-size: 12px;
  margin: 0 12px;
}

.remove-file {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.15s;
}

.remove-file:hover {
  color: var(--danger);
  background: rgba(240, 71, 71, 0.1);
}

/* Success Message */
.success-message {
  text-align: center;
  padding: 20px 0;
}

.success-message i {
  font-size: 48px;
  color: var(--success);
}

.success-message p {
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 600;
  margin: 12px 0 4px;
}

.result-size {
  color: var(--text-dim);
  font-size: 14px;
}

/* Action Buttons */
.action-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* Footer */
.footer {
  width: 100%;
  max-width: 640px;
  margin-top: 20px;
  background-color: var(--bg-secondary);
  border-radius: 16px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow);
  transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-left i {
  color: var(--accent);
  font-size: 14px;
}

.footer-left span {
  color: var(--text-primary);
  font-weight: 500;
}

.footer-version {
  color: var(--text-dim);
  font-size: 12px;
  background: var(--bg-tertiary);
  padding: 2px 10px;
  border-radius: 20px;
}

.footer-right {
  display: flex;
  gap: 16px;
  align-items: center;
}

.footer-right a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: color 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-right a:hover {
  color: var(--text-primary);
}

.footer-right a i {
  font-size: 14px;
}

.footer-divider {
  width: 100%;
  height: 1px;
  background: var(--border-light);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-links {
  display: flex;
  gap: 20px;
  align-items: center;
}

.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 12px;
  transition: color 0.15s;
}

.footer-links a:hover {
  color: var(--text-muted);
}

.footer-bottom .made-by {
  color: var(--text-dim);
  font-size: 12px;
}

.footer-bottom .made-by i {
  color: var(--accent);
  margin: 0 4px;
}

/* Responsive */
@media (max-width: 640px) {
  body {
    padding: 12px;
  }

  .navbar {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 16px;
  }

  .navbar-links {
    gap: 10px;
  }

  .navbar-links a span {
    display: none;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .tool-card {
    padding: 20px;
    border-radius: 20px;
  }

  .tool-header h2 {
    font-size: 20px;
  }

  .tool-subtitle {
    margin-left: 0;
  }

  .control-group {
    grid-template-columns: 1fr;
  }

  .control-group.two-col {
    grid-template-columns: 1fr;
  }

  .image-comparison {
    grid-template-columns: 1fr;
  }

  .upload-area {
    padding: 30px 16px;
  }

  .upload-area i {
    font-size: 36px;
  }

  .footer {
    padding: 16px 18px;
  }

  .footer-top {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-right {
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-links {
    gap: 12px;
  }

  .hero h1 {
    font-size: 24px;
  }

  .category-filters {
    justify-content: center;
  }

  .category-btn {
    font-size: 12px;
    padding: 6px 12px;
  }
}

@media (max-width: 420px) {
  .navbar-brand {
    font-size: 14px;
    margin-right: 8px;
  }

  .theme-toggle span {
    display: none;
  }

  .navbar-links a {
    font-size: 12px;
  }

  .category-btn span {
    display: none;
  }
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-dim);
}
/* Add to styles.css */
#infoBox img {
  background: var(--bg-input);
}

#statusIcon {
  font-size: 48px;
  line-height: 1;
}

#statusIcon i {
  font-size: 48px;
}

.youtube-hint {
  color: var(--text-dim);
  font-size: 12px;
  margin-top: 4px;
}

/* Responsive for YouTube Downloader */
@media (max-width: 540px) {
  #infoBox {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  #infoBox img {
    width: 100%;
    max-width: 200px;
    height: auto;
    aspect-ratio: 16/9;
  }

  #infoBox > div:first-child {
    flex-direction: column;
    align-items: center;
  }
}