/* ==========================================================================
   Quran & Doa Video Generator - Premium Dark Glassmorphism Styling
   Mobile-First Responsive Design
   ========================================================================== */

:root {
  --bg-main: #0b0f17;
  --bg-card: #131b28;
  --bg-card-hover: #1b263b;
  --bg-input: #1a2233;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(245, 158, 11, 0.5);
  
  --primary-gold: #f59e0b;
  --primary-gold-hover: #d97706;
  --primary-gold-light: #fef3c7;
  --primary-emerald: #10b981;
  --primary-emerald-hover: #059669;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  
  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --shadow-gold: 0 4px 20px -2px rgba(245, 158, 11, 0.35);
  --font-arabic: 'Amiri Quran', 'Scheherazade New', 'Amiri', serif;
  --font-ui: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-ui);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: #25334a;
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: #3b4e6d;
}

/* App Container */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Top Stepper Header */
.top-header {
  padding: 14px 20px;
  background: rgba(19, 27, 40, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
}

.stepper-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  max-width: 650px;
  margin: 0 auto;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.step-item.active {
  color: var(--primary-gold);
}

.step-number {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #1e293b;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.step-item.active .step-number {
  background: var(--primary-gold);
  color: #0f172a;
  font-weight: 700;
  border-color: var(--primary-gold);
}

.step-divider {
  flex: 1;
  height: 2px;
  background: #1e293b;
  max-width: 36px;
  min-width: 12px;
}

/* Mobile View Tabs (Shown only on screens <= 900px) */
.mobile-view-tabs {
  display: none;
  background: #101622;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 53px;
  z-index: 45;
  gap: 8px;
}

.mobile-tab-btn {
  flex: 1;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s ease;
  position: relative;
}

.mobile-tab-btn.active {
  background: var(--primary-gold);
  color: #0f172a;
  border-color: var(--primary-gold);
  box-shadow: var(--shadow-gold);
}

.mobile-preview-badge {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  display: none;
}

.mobile-preview-badge.playing {
  display: inline-block;
  animation: pulse 1s infinite alternate;
}

/* Main Workspace Layout */
.workspace-layout {
  display: grid;
  grid-template-columns: 460px 1fr;
  flex: 1;
  min-height: calc(100vh - 60px);
}

/* Left Sidebar Controls */
.controls-sidebar {
  background: #0f1724;
  border-right: 1px solid var(--border-color);
  padding: 24px;
  overflow-y: auto;
  max-height: calc(100vh - 60px);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* Mode Switch (Al-Quran vs Doa Harian) */
.mode-toggle-group {
  display: flex;
  background: #141d2c;
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  gap: 4px;
}

.mode-btn {
  flex: 1;
  padding: 10px 14px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.mode-btn.active {
  background: var(--primary-gold);
  color: #0f172a;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.25);
}

/* Control Card Sections */
.control-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-card);
}

.section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Form Groups */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-select, .form-input, .form-textarea {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: all 0.2s ease;
  width: 100%;
}

.form-select:focus, .form-input:focus, .form-textarea:focus {
  border-color: var(--primary-gold);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

/* Ayat Range Grid */
.range-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.ayah-info-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 2px 0;
  flex-wrap: wrap;
  gap: 6px;
}

.btn-link-action {
  background: none;
  border: none;
  color: var(--primary-gold);
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  text-decoration: underline;
}

/* Checkbox Label */
.checkbox-container {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.84rem;
  color: var(--text-main);
  cursor: pointer;
  user-select: none;
}

.checkbox-container input[type="checkbox"] {
  accent-color: var(--primary-gold);
  width: 16px;
  height: 16px;
  margin-top: 2px;
}

.hint-note {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 2px;
  line-height: 1.4;
}

/* Primary Button (Load Ayah / Actions) */
.btn-primary {
  background: var(--primary-gold);
  color: #0f172a;
  border: none;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
}

.btn-primary:hover {
  background: var(--primary-gold-hover);
  box-shadow: var(--shadow-gold);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Translation Editor Box */
.translation-editor-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 240px;
  overflow-y: auto;
  padding-right: 4px;
}

.ayah-edit-card {
  background: #182232;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ayah-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.ayah-tag {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary-gold);
}

.ayah-arabic-preview {
  font-family: var(--font-arabic);
  font-size: 1.15rem;
  color: #ffffff;
  direction: rtl;
  text-align: right;
  line-height: 1.7;
}

/* Background Category Tabs */
.bg-categories {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
}

.bg-tab-btn {
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: #192334;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 4px;
}

.bg-tab-btn.active {
  background: var(--primary-gold);
  color: #0f172a;
  border-color: var(--primary-gold);
}

/* Background Preset Grid */
.bg-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.bg-card-item {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  background: #1e293b;
  transition: all 0.2s ease;
}

.bg-card-item:hover {
  transform: scale(1.03);
}

.bg-card-item.selected {
  border-color: var(--primary-gold);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.4);
}

.bg-card-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bg-card-name {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 4px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.88), transparent);
  font-size: 0.68rem;
  font-weight: 600;
  color: #ffffff;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bg-upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background: rgba(26, 34, 51, 0.4);
}

.bg-upload-zone:hover {
  border-color: var(--primary-gold);
  background: rgba(245, 158, 11, 0.05);
}

/* Video Format & Render Options */
.format-toggle-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.format-btn {
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.86rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.format-btn.active {
  background: var(--primary-gold);
  color: #0f172a;
  border-color: var(--primary-gold);
}

/* Resolution & File Type Pills */
.pill-group {
  display: flex;
  gap: 8px;
}

.pill-btn {
  flex: 1;
  padding: 8px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.pill-btn.active {
  background: #25334a;
  color: var(--primary-gold);
  border-color: var(--primary-gold);
}

/* Action Buttons (Preview & Download) */
.action-buttons-row {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 10px;
  margin-top: 6px;
}

.btn-secondary {
  background: #1e293b;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: #27354d;
}

.btn-download {
  background: var(--primary-gold);
  color: #0f172a;
  border: none;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: var(--shadow-gold);
  transition: all 0.2s ease;
}

.btn-download:hover {
  background: var(--primary-gold-hover);
  transform: translateY(-1px);
}

/* ==========================================================================
   Right Side Canvas Preview Area
   ========================================================================== */
.preview-panel {
  background: #080d14;
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.preview-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 100%;
}

.canvas-wrapper {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
  background: #000;
  max-width: 100%;
}

/* Canvas View Sizes - Desktop */
.canvas-wrapper.vertical-view {
  width: 360px;
  height: 640px;
  aspect-ratio: 9/16;
}

.canvas-wrapper.landscape-view {
  width: 680px;
  height: 382px;
  aspect-ratio: 16/9;
}

#videoCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Recording Pulse Badge on Canvas */
.recording-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(220, 38, 38, 0.9);
  backdrop-filter: blur(8px);
  color: #fff;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  display: none;
  align-items: center;
  gap: 6px;
  box-shadow: 0 0 15px rgba(220, 38, 38, 0.6);
  z-index: 10;
}

.recording-badge.active {
  display: flex;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: #fff;
  border-radius: 50%;
  animation: pulse 1s infinite alternate;
}

@keyframes pulse {
  0% { transform: scale(0.8); opacity: 0.5; }
  100% { transform: scale(1.3); opacity: 1; }
}

/* Canvas Bottom Control Bar */
.preview-controls-bar {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(19, 27, 40, 0.85);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.1rem;
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--primary-gold);
}

/* Mobile Quick Actions under Preview */
.mobile-preview-actions {
  display: none;
  gap: 10px;
  margin-top: 16px;
  width: 100%;
  max-width: 360px;
}

/* Export / Recording Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}

.modal-backdrop.active {
  display: flex;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  width: 100%;
  max-width: 400px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-progress-track {
  width: 100%;
  height: 10px;
  background: #1e293b;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.modal-progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary-gold), #f97316);
  border-radius: var(--radius-full);
  transition: width 0.2s ease;
}

/* ==========================================================================
   Responsive Breakpoints: Mobile & Tablet Enhancements
   ========================================================================== */

/* Tablet & Mobile (<= 900px) */
@media (max-width: 900px) {
  .mobile-view-tabs {
    display: flex;
  }

  .workspace-layout {
    display: block;
    min-height: auto;
  }

  /* Control sidebar visibility based on active mobile tab */
  .controls-sidebar {
    max-height: none;
    overflow-y: visible;
    border-right: none;
    padding: 16px;
    display: none;
  }

  .controls-sidebar.active-tab-view {
    display: flex;
  }

  .preview-panel {
    padding: 20px 12px 32px 12px;
    display: none;
    min-height: calc(100vh - 120px);
  }

  .preview-panel.active-tab-view {
    display: flex;
  }

  .canvas-wrapper.vertical-view {
    width: min(86vw, 340px);
    height: auto;
    aspect-ratio: 9/16;
  }

  .canvas-wrapper.landscape-view {
    width: min(94vw, 540px);
    height: auto;
    aspect-ratio: 16/9;
  }

  .mobile-preview-actions {
    display: flex;
  }

  .mobile-preview-actions button {
    flex: 1;
  }
}

/* Small Screens (<= 640px) */
@media (max-width: 640px) {
  .top-header {
    padding: 10px 12px;
  }

  .stepper-nav {
    gap: 8px;
  }

  .step-item {
    font-size: 0.76rem;
    gap: 5px;
  }

  .step-divider {
    max-width: 16px;
  }

  .bg-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .action-buttons-row {
    grid-template-columns: 1fr;
  }

  .control-card {
    padding: 14px;
  }

  .pill-group {
    flex-wrap: wrap;
  }
}