/* ============================= */
/* Modern Slideshow Creator UI   */
/* ============================= */

:root {
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --secondary-color: #8b5cf6;
  --success-color: #10b981;
  --danger-color: #ef4444;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --border-hover: #d1d5db;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

/* ============================= */
/* Upload Box Styles             */
/* ============================= */
.upload-box {
  border: 2px dashed var(--border-color);
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.upload-box p {
  color: var(--text-secondary);
  font-size: 15px;
  margin: 0;
  font-weight: 500;
}

.upload-box:hover {
  border-color: var(--primary-color);
  background-color: rgba(99, 102, 241, 0.04);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.upload-box.highlight {
  border-color: var(--primary-color);
  background-color: rgba(99, 102, 241, 0.08);
  box-shadow: var(--shadow-lg);
}

.upload-label {
  color: var(--primary-color);
  text-decoration: none;
  cursor: pointer;
  font-weight: 600;
  transition: color 0.2s;
}

.upload-label:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* ============================= */
/* Section Titles                */
/* ============================= */
.section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 24px 0 12px 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ============================= */
/* Overall Containers            */
/* ============================= */
#header-container {
  width: 100%;
  overflow: hidden;
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  border: 1px solid var(--border-color);
  border-bottom: none;
}

#body-container {
  max-height: 320px;
  overflow-y: auto;
  width: 100%;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  border-top: none;
}

/* ============================= */
/* Header Table Styles           */
/* ============================= */
#audio-header {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

#audio-header th {
  padding: 14px 16px;
  border-bottom: 2px solid var(--border-color);
  text-align: left;
  background: var(--bg-secondary);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: sticky;
  top: 0;
  z-index: 2;
}

/* ============================= */
/* Body Table & Row Styles       */
/* ============================= */
#audio-body {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

#audio-body td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
  position: relative;
  font-size: 14px;
  color: var(--text-primary);
}

/* SONG ROWS */
.song-row {
  display: table-row;
  width: 100%;
  table-layout: fixed;
  transition: background 0.2s ease;
  border-bottom: 1px solid var(--border-color);
}

.song-row:nth-child(4n+1) {
  background-color: var(--bg-secondary);
}

.song-row:hover {
  background-color: rgba(99, 102, 241, 0.06);
}

/* PROGRESS ROWS */
.progress-row {
  display: none;
}

.progress-row td {
  padding: 0;
  margin: 0;
  border: none !important;
}

.song-row.playing + .progress-row,
.song-row.paused + .progress-row {
  display: table-row !important;
}

/* ============================= */
/* Title Cell & Wrapper          */
/* ============================= */
.title-cell {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.title-wrapper {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 15px;
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

/* ============================= */
/* Play & Add Buttons            */
/* ============================= */
.play-btn, .add-btn {
  display: none;
  z-index: 10;
  margin: 0;
  padding: 6px;
  position: absolute;
  left: 0;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease-in-out;
  background: var(--primary-color);
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.play-btn:hover, .add-btn:hover {
  background: var(--primary-hover);
  transform: scale(1.1);
}

.add-btn {
  left: 32px;
  background: var(--success-color);
}

.add-btn:hover {
  background: #059669;
}

.play-btn img, .add-btn img {
  width: 16px;
  height: 16px;
  filter: brightness(0) invert(1);
}

.song-row:hover .play-btn,
.song-row:hover .add-btn {
  opacity: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  visibility: visible;
}

.song-row:hover .song-title {
  transform: translateX(calc(48px + 15px));
  display: inline-block;
  transition: transform 0.2s ease;
}

.song-row.playing .play-btn {
  opacity: 1;
  visibility: visible;
}

.audio-file {
  display: none !important;
}

.hidden {
  display: none !important;
  visibility: hidden;
  opacity: 0;
}

/* ============================= */
/* Progress Bar Styles           */
/* ============================= */
.progress-container {
  width: 100%;
  height: 6px;
  cursor: pointer;
  overflow: hidden;
  background: var(--bg-tertiary);
  border-radius: 3px;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transition: width 0.1s linear;
  border-radius: 3px;
}

/* ============================= */
/* Custom Scrollbar              */
/* ============================= */
#body-container::-webkit-scrollbar {
  width: 10px;
}

#body-container::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: 5px;
}

#body-container::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: 5px;
  border: 2px solid var(--bg-tertiary);
}

#body-container::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

#body-container {
  scrollbar-width: thin;
  scrollbar-color: var(--border-hover) var(--bg-tertiary);
}

/* ============================= */
/* Card Sections                 */
/* ============================= */
.tts-block, .aspect-block, .prompt-block, .options-block {
  margin: 20px 0;
  padding: 20px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-primary);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.tts-block:hover, .aspect-block:hover, .prompt-block:hover, .options-block:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
}

.tts-block label, .aspect-block label, .prompt-block label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
}

.tts-block strong, .aspect-block strong {
  color: var(--text-primary);
  font-size: 15px;
}

.tts-block textarea, .aspect-block select, .prompt-block textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-primary);
  transition: all 0.2s ease;
  resize: vertical;
}

.tts-block textarea:focus, .aspect-block select:focus, .prompt-block textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.tts-block textarea::placeholder, .prompt-block textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

/* ============================= */
/* Checkbox Styles               */
/* ============================= */
input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary-color);
  margin-right: 8px;
}

label:has(input[type="checkbox"]) {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.2s;
}

label:has(input[type="checkbox"]):hover {
  color: var(--text-primary);
}

/* ============================= */
/* Button Styles                 */
/* ============================= */
.envira-create-slideshow {
  width: 100%;
  padding: 16px 24px !important;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
  color: white !important;
  border: none !important;
  border-radius: var(--radius-lg) !important;
  font-size: 16px !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-shadow: var(--shadow-md) !important;
  text-align: center !important;
  margin-top: 24px !important;
}

.envira-create-slideshow:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow-lg) !important;
  background: linear-gradient(135deg, var(--primary-hover), #7c3aed) !important;
}

.envira-create-slideshow:active {
  transform: translateY(0) !important;
}

/* ============================= */
/* Music Selector Card           */
/* ============================= */
.music-selector-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin: 20px 0;
}

.music-selector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.music-selector-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.selected-music-badge {
  background: var(--success-color);
  color: white;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

/* ============================= */
/* Responsive Design             */
/* ============================= */
@media (max-width: 768px) {
  .tts-block, .aspect-block, .prompt-block, .options-block {
    padding: 16px;
    margin: 16px 0;
  }

  #audio-header th, #audio-body td {
    padding: 10px 12px;
    font-size: 13px;
  }

  .envira-create-slideshow {
    font-size: 15px !important;
    padding: 14px 20px !important;
  }
}

/* ============================= */
/* Animations                    */
/* ============================= */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tts-block, .aspect-block, .prompt-block {
  animation: fadeIn 0.4s ease-out;
}