/* ========================================
   Smart Video Manager - Enhanced CSS v3.0
   مظهر احترافي محسّن لجميع الشورت كود
======================================== */

/* ===== CSS VARIABLES - ألوان ديناميكية ===== */
:root {
  /* Playlist Colors */
  --svm-playlist-bg: #f8fafc;
  --svm-playlist-title-bg: #ffffff;
  --svm-playlist-title-color: #1e293b;
  --svm-playlist-item-text-color: #475569;
  --svm-playlist-item-active-bg: #dbeafe;
  --svm-playlist-border: #e2e8f0;
  --svm-playlist-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  
  /* Grid Colors */
  --svm-grid-card-bg: #ffffff;
  --svm-grid-card-font-color: #1e293b;
  --svm-grid-card-border: #e2e8f0;
  --svm-grid-card-hover-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
  
  /* Multi-playlist Colors */
  --svm-multi-main-title-bg: #172b2d;
  --svm-multi-main-title-color: #ffffff;
  --svm-multi-course-title-bg:linear-gradient(to right, #2c807b, #2f657a);
  --svm-multi-course-title-color: #ffffff;

  /* Accordion Colors */
  --svm-accordion-header-bg: #f8fafc;
  --svm-accordion-header-color: #374151;
  --svm-accordion-content-bg: #ffffff;
  --svm-accordion-border: #e5e7eb;
  
  /* Animation Variables */
  --svm-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --svm-border-radius: 12px;
  --svm-border-radius-sm: 8px;
}

/* ===== RESET & BASE STYLES ===== */
.smart-video-single-wrapper,
.smart-video-list-wrapper,
.smart-video-shortcode-wrapper,
.svm-course-playlist-wrapper,
.svm-multi-playlist-wrapper,
.svm-display-wrapper {
  box-sizing: border-box;
  margin: 2rem auto;
  padding: 0;
  max-width: 1200px;
  width: 100%;
  font-family: "DroidNaskh", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif !important;
  line-height: 1.5;
  color: #1e293b;
}

/* ===== COURSE PLAYLIST STYLES ===== */
.svm-course-playlist-wrapper {
  display: flex;
  flex-wrap: wrap;
  background: var(--svm-playlist-bg, #03424a);
  border-radius: var(--svm-border-radius);
  padding: 15px;
  overflow: hidden;
  box-shadow: var(--svm-playlist-shadow);
  border: 1px solid var(--svm-playlist-border);
  min-height: 400px;
}

/* Playlist Title Enhancement */
.svm-playlist-main-title {
  margin: 0;
  border-bottom: 1px solid var(--svm-playlist-border);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  border-radius: var(--svm-border-radius) var(--svm-border-radius) 0 0;
  color: var(--svm-playlist-title-color);
  text-align: center;
  padding: 1rem;
  background: var(--svm-playlist-title-bg);
  position: relative;
}

.svm-playlist-main-title::before {
  content: "🎬";
  margin-right: 0.5rem;
  font-size: 1.2em;
  opacity: 0.8;
}

/* Player Section */
.svm-playlist-player-main {
  flex: 1 1 65%;
  min-width: 350px;
  background: #000;
  position: relative;
}

.svm-playlist-player-embed {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 400px;
  background: #000;
}

.svm-playlist-player-embed iframe,
.svm-playlist-player-embed video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Placeholder for empty player */
.svm-playlist-placeholder,
.svm-playlist-main-placeholder {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #94a3b8;
  cursor: pointer;
  transition: var(--svm-transition);
}

.svm-playlist-main-placeholder {
  width: 80%;
  max-width: 300px;
}

.svm-playlist-main-placeholder:hover {
  transform: translate(-50%, -50%) scale(1.05);
  color: #ffffff;
}

img.wp-smiley, img.emoji {
  height: 2em !important;
  width: 2em !important;
}

.svm-playlist-placeholder-thumb {
  width: 100%;
  height: auto;
  border-radius: var(--svm-border-radius-sm);
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.svm-playlist-placeholder-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #ffffff;
  margin: 0;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.svm-play-button-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,0.7);
  color: white;
  border: 3px solid rgba(255,255,255,0.9);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: var(--svm-transition);
  backdrop-filter: blur(4px);
}

.svm-play-button-overlay:hover {
  background: rgba(0,0,0,0.9);
  transform: translate(-50%, -50%) scale(1.1);
  border-color: #ffffff;
}

/* Sidebar */
.svm-playlist-sidebar {
  flex: 1 1 35%;
  min-width: 300px;
  border-left: 1px solid var(--svm-playlist-border);
  display: flex;
  flex-direction: column;
}

.svm-playlist-sidebar-title {
  padding: 1rem 1.5rem;
  margin: 0;
  background: var(--svm-playlist-title-bg);
  color: var(--svm-playlist-title-color);
  border-bottom: 1px solid var(--svm-playlist-border);
  font-size: 1rem;
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 10;
}

.svm-playlist-count {
  color: var(--svm-multi-course-title-bg);
  font-weight: 700;
}

.svm-playlist-list {
  list-style: none;
  margin: 0;
  padding: 0.5rem;
  flex: 1;
  overflow-y: auto;
  max-height: 400px;
}

.svm-playlist-item {
  display: flex;
  align-items: center;
  padding: 0.25rem;
  cursor: pointer;
  border: 2px solid transparent;
  border-bottom: 1px solid #f1f5f9;
  border-radius: 8px;
  transition: background-color 0.2s ease;
  position: relative;
}

.svm-playlist-item:hover {
  background: #f8fafc;
  transform: translateX(4px);
}

.svm-playlist-item.is-active {
  background: var(--svm-playlist-item-active-bg);
  border-left: 4px solid var(--svm-multi-course-title-bg);
  font-weight: 600;
  color: var(--svm-primary-color);
}

.svm-playlist-item-thumbnail {
  position: relative;
  margin-right: 1rem;
  flex-shrink: 0;
}

.svm-playlist-item-thumb {
  width: 60px;
  height: 50px;
  object-fit: cover;
  margin-right: 1rem;
  border-radius: var(--svm-border-radius-sm);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: var(--svm-transition);
}

.svm-playlist-item:hover .svm-playlist-item-thumb {
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.svm-playlist-item-number {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--svm-multi-course-title-bg);
  color: white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.svm-playlist-item-content {
  flex: 1;
  min-width: 0;
}

.svm-playlist-item-title {
  font-size: 0.9rem;
  line-height: 1.4;
  color: inherit;
  margin: 0 0 4px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.svm-playlist-item-excerpt {
  font-size: 0.75rem;
  color: #64748b;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}

/* ===== GRID ITEM STYLES ===== */
.svm-layout-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  padding: 1.5rem;
}

.svm-video-list-item {
    box-sizing: border-box !important;
    margin-bottom: 2.5rem !important;
    padding: 1rem !important;
    background: var(--svm-grid-card-bg, #fff) !important;
    border: 1px solid #e0e0e0 !important;
    clear: both !important;
    overflow: visible !important;
    position: relative !important;
    display: block !important;
}

.svm-layout-grid .svm-video-list-item {
  background: var(--svm-grid-card-bg);
  border: 1px solid var(--svm-grid-card-border);
  border-radius: var(--svm-border-radius);
  overflow: hidden;
  transition: var(--svm-transition);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  margin-bottom: 0;
  padding: 0;
}

.svm-layout-grid .svm-video-list-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--svm-grid-card-hover-shadow);
  border-color: var(--svm-multi-course-title-bg);
}

.svm-grid-item .svm-video-placeholder {
  border-radius: 0;
  box-shadow: none;
  margin-bottom: 0;
}

.svm-grid-item .svm-video-item-title {
  padding: 1.25rem;
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--svm-grid-card-font-color);
  line-height: 1.4;
}

.svm-video-list-item .svm-video-item-title {
    padding: 1rem;
    font-weight: 600;
    margin-top: auto; /* Pushes title to the bottom in a flex column */
}

/* Entry Animation */
.svm-video-list-item {
  animation: svm-fadeInUp 0.6s ease forwards;
  opacity: 0;
  transform: translateY(20px);
}

.svm-video-list-item:nth-child(1) { animation-delay: 0.1s; }
.svm-video-list-item:nth-child(2) { animation-delay: 0.2s; }
.svm-video-list-item:nth-child(3) { animation-delay: 0.3s; }
.svm-video-list-item:nth-child(4) { animation-delay: 0.4s; }
.svm-video-list-item:nth-child(5) { animation-delay: 0.5s; }

@keyframes svm-fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== ACCORDION STYLES ===== */
.svm-accordion-wrapper {
  margin-top: 1.5rem;
  border: 1px solid var(--svm-accordion-border);
  border-radius: var(--svm-border-radius);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.svm-accordion-item {
  border-bottom: 1px solid var(--svm-accordion-border);
}

.svm-accordion-item:last-child {
  border-bottom: none;
}

.svm-accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: var(--svm-accordion-header-bg);
  border: none;
  text-align: left;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--svm-accordion-header-color);
  transition: var(--svm-transition);
}

.svm-accordion-header:hover {
  background: #f1f5f9;
  transform: translateY(-1px);
}

.svm-accordion-title {
  margin: 0;
  padding: 0;
}

.svm-accordion-icon {
  font-size: 1.2em;
  transition: transform 0.3s ease;
  color: #64748b;
}

.svm-accordion-icon::before {
  content: '+';
}

.svm-accordion-header[aria-expanded="true"] .svm-accordion-icon {
  transform: rotate(45deg);
  color: var(--svm-multi-course-title-bg);
}

/* 1. Solves "stuck together" and "too large" issues by creating a responsive grid */
.svm-accordion-content {
  padding: 1.5rem;
  background: var(--svm-accordion-content-bg);
  border-top: 1px solid var(--svm-accordion-border);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* 2. Styles the video items INSIDE the accordion */
.svm-accordion-content .svm-video-list-item {
    margin: 0 !important; 
    animation: none !important; /* Disables entry animation inside accordion for better UX */
    opacity: 1 !important;
    transform: none !important;
    display: flex; /* Solves the overflowing placeholder issue */
    flex-direction: column;
}

/* 3. Styles the video title that your PHP code is now correctly showing */
.svm-accordion-content .svm-video-item-title {
    padding: 1rem;
    font-weight: 600;
    font-size: 1rem;
    margin-top: auto; /* Pushes title to the bottom */
    color: var(--svm-grid-card-font-color);
}

/* ===== PLAYER PLACEHOLDER & TARGET (CRITICAL FIX) ===== */
.svm-video-placeholder, .svm-lite-youtube-player, .svm-video-player-target {
    position: relative !important;
    width: 100% !important;
    height: 0 !important;
    padding-top: 56.25% !important; /* Force 16:9 Aspect Ratio */
    background-color: #000;
    cursor: pointer;
    overflow: hidden;
}

.svm-video-player-target {
    display: none; /* Hidden by default until clicked */
}

/* Logic for swapping visibility */
.svm-video-list-item.svm-player-loaded .svm-video-placeholder,
.svm-video-list-item.svm-player-loaded .svm-lite-youtube-player {
    display: none !important;
}
.svm-video-list-item.svm-player-loaded .svm-video-player-target {
    display: block !important;
}

/* Iframe/Video Element */
.svm-video-player-target iframe,
.svm-video-player-target video {
    position: absolute !important;
    top: 0 !important; left: 0 !important;
    width: 100% !important; height: 100% !important;
    border: none !important;
}

/* --- Placeholder Visuals --- */
.svm-video-placeholder-thumb {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover;
    transition: var(--svm-transition);
}
.svm-video-placeholder:hover .svm-video-placeholder-thumb {
    transform: scale(1.05);
}
.svm-play-button-placeholder {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 60px; height: 60px;
    background: rgba(0,0,0,0.7);
    border: 2px solid white;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: white;
    transition: var(--svm-transition);
    backdrop-filter: blur(4px);
}
.svm-video-placeholder:hover .svm-play-button-placeholder {
    transform: translate(-50%, -50%) scale(1.1);
}
.svm-play-icon { font-size: 24px; line-height: 1; margin-left: 3px; }

/* ===== SINGLE VIDEO PLAYER STYLES ===== */
.smart-video-shortcode-wrapper {
  background: var(--svm-grid-card-bg);
  border-radius: var(--svm-border-radius);
  box-shadow: var(--svm-playlist-shadow);
  padding: 1.5rem;
  border: 1px solid var(--svm-playlist-border);
}

.smart-video-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 1.5rem 0;
  color: var(--svm-playlist-title-color);
  line-height: 1.3;
}

.smart-video-content {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: #f8fafc;
  border-radius: var(--svm-border-radius-sm);
  border-left: 4px solid var(--svm-multi-course-title-bg);
}

/* ===================================================================
   START: CORE LAYOUT FIX FOR ALL VIDEO PLAYERS (v4.3)
   =================================================================== */
.smart-video-player-container,
.smart-video-player-area,
.svm-video-placeholder,
.svm-lite-youtube-player {
 position: relative;
 width: 100%;
 background: #000;
 border-radius: var(--svm-border-radius-sm);
 overflow: hidden;
 box-shadow: 0 8px 25px -5px rgba(0, 0, 0, 0.1);
 margin-bottom: 1.5rem;
 /* FIX: Use aspect-ratio for modern browsers, with padding fallback */
 aspect-ratio: 16 / 9;
 height: auto; /* Override the height: 0 */
 min-height: 200px; /* Safety net for contexts where aspect-ratio might fail */
}

/* Fallback for older browsers that don't support aspect-ratio */
@supports not (aspect-ratio: 16 / 9) {
  .smart-video-player-container,
  .smart-video-player-area {
    height: 0;
    padding-top: 56.25%;
  }
}

/* Ensure the placeholder itself has a transparent background to show the image */
.svm-video-placeholder,
.svm-lite-youtube-player {
    background-color: transparent;
    cursor: pointer;
}

/* The iframe/video element itself must fill its container absolutely. */
.smart-video-player-container iframe,
.smart-video-player-container video,
.smart-video-player-area iframe,
.smart-video-player-area video,
.svm-video-player-target iframe,
.svm-video-player-target video,
.svm-playlist-player-embed iframe,
.svm-playlist-player-embed video {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: 0;
}

/* ===== MULTI-PLAYLIST STYLES ===== */
.svm-multi-playlist-wrapper {
  background: var(--svm-grid-card-bg);
  border-radius: var(--svm-border-radius);
  overflow: hidden;
  box-shadow: var(--svm-playlist-shadow);
  border: 1px solid var(--svm-playlist-border);
}

.svm-multi-playlist-main-title {
    background: var(--svm-multi-main-title-bg, #23282d);
    color: var(--svm-multi-main-title-color, #ffffff);
    padding: 18px 25px;
    margin: 0;
    font-size: 1.2em;
    font-weight: bold;
}

.svm-multi-playlist-main-title::before {
  content: "📚";
  margin-right: 0.75rem;
  font-size: 1.3em;
}

.svm-multi-playlist-course-title {
  background: var(--svm-multi-course-title-bg, linear-gradient(to right, #2c807b, #2f657a));
  color: var(--svm-multi-course-title-color, #ffffff);
  padding: 1.5rem 2rem;
  margin: 0;
  font-size: 1.1em;
  font-weight: 600;
  border-bottom: 3px solid #718096;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.4);
  box-shadow: inset 0px 4px 10px rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: hidden;
}

.svm-multi-playlist-course-title::before {
  content: "🎯";
  margin-right: 0.5rem;
  font-size: 1.1em;
}

.svm-multi-playlist-course-title::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s ease;
}

.svm-multi-playlist-course-title:hover::after {
  left: 100%;
}

.smart-video-alert.alert-info {
    color: #005a87;
    background-color: #f0f6fc;
    border-color: #72aee6;
}

.smart-video-alert {
  padding: 10px 15px;
  margin-bottom: 15px;
  border: 1px solid transparent;
  border-radius: 4px;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .05);
}

/* ===== VIDEO PLACEHOLDER & PLAY BUTTON ===== */
.svm-video-placeholder,
.svm-lite-youtube-player {
  position: relative;
  display: block;
  width: 100%;
  cursor: pointer;
  background: #000;
  overflow: hidden;
  height: 0;
  padding-top: 56.25%;
  border-radius: var(--svm-border-radius-sm);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transition: var(--svm-transition);
}

.svm-video-placeholder:hover,
.svm-lite-youtube-player:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.svm-video-placeholder-thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--svm-transition);
}

.svm-video-placeholder:hover .svm-video-placeholder-thumb,
.svm-lite-youtube-player:hover .svm-video-placeholder-thumb {
  opacity: 0.9 !important;
  transform: scale(1.02) !important;
}

.svm-play-button-placeholder {
  position: absolute !important;
  top: 50% !important;
  left: 50% !important;
  transform: translate(-50%, -50%) !important;
  background: rgba(0,0,0,0.7) !important;
  color: white !important;
  border: 3px solid rgba(255,255,255,0.9) !important;
  border-radius: 50% !important;
  width: 60px !important;
  height: 60px !important;
  font-size: 20px !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: var(--svm-transition) !important;
  backdrop-filter: blur(4px) !important;
}

.svm-play-button-placeholder:hover {
  background: rgba(0,0,0,0.9) !important;
  border-color: #ffffff !important;
  transform: translate(-50%, -50%) scale(1.1) !important;
}

.svm-play-icon {
  line-height: 1 !important;
  margin-left: 2px !important;
}

/* ===== COMPLETION STATUS ===== */
.svm-video-list-item.is-completed .svm-video-placeholder-thumb {
  opacity: 0.7 !important;
}

.svm-completed-checkmark {
  position: absolute !important;
  top: 12px !important;
  right: 12px !important;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
  color: white !important;
  width: 28px !important;
  height: 28px !important;
  border-radius: 50% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 14px !important;
  font-weight: 700 !important;
  z-index: 10 !important;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3) !important;
  border: 2px solid white !important;
}


/* ===== LOADING & ANIMATIONS ===== */
.svm-loading-spinner {
  border: 4px solid rgba(255, 255, 255, 0.2) !important;
  border-radius: 50% !important;
  border-top: 4px solid var(--svm-multi-course-title-bg) !important;
  width: 48px !important;
  height: 48px !important;
  animation: svm-spin 1s linear infinite !important;
  position: absolute !important;
  top: 50% !important;
  left: 50% !important;
  margin: -24px 0 0 -24px !important;
  z-index: 100 !important;
}

@keyframes svm-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 968px) {
  .svm-course-playlist-wrapper {
    flex-direction: column !important;
    margin: 1rem !important;
  }
  
  .svm-playlist-player-main,
  .svm-playlist-sidebar {
    flex-basis: 100% !important;
    width: 100% !important;
    min-width: 0 !important;
  }
  
  .svm-playlist-sidebar {
    max-height: 300px !important;
    border-left: none !important;
    border-top: 1px solid var(--svm-playlist-border) !important;
  }
  
  .svm-layout-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
    padding: 1rem !important;
  }
}

@media (max-width: 640px) {
  .smart-video-single-wrapper,
  .smart-video-list-wrapper,
  .smart-video-shortcode-wrapper,
  .svm-multi-playlist-wrapper {
    margin: 1rem !important;
    border-radius: var(--svm-border-radius-sm) !important;
  }
  
  .svm-playlist-item {
    padding: 0.75rem 1rem !important;
  }
  
  .svm-playlist-item-thumb {
    width: 60px !important;
    height: 34px !important;
  }
  
  .svm-play-button-placeholder {
    width: 50px !important;
    height: 50px !important;
    font-size: 18px !important;
  }
  
  .smart-video-title {
    font-size: 1.25rem !important;
  }
  
  .svm-playlist-title {
    font-size: 1.1rem !important;
    padding: 1rem 1.5rem !important;
  }
  
  .svm-multi-playlist-main-title {
    font-size: 1.25rem !important;
    padding: 1.5rem !important;
  }
  
  .svm-multi-playlist-course-title {
    font-size: 1rem !important;
    padding: 1rem 1.5rem !important;
  }
}

/* ===== DARK MODE SUPPORT ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --svm-playlist-bg: #1e293b;
    --svm-playlist-title-bg: #334155;
    --svm-playlist-title-color: #f1f5f9;
    --svm-playlist-item-text-color: #cbd5e1;
    --svm-playlist-item-active-bg: #1e40af;
    --svm-playlist-border: #475569;
    --svm-grid-card-bg: #334155;
    --svm-grid-card-font-color: #f1f5f9;
    --svm-grid-card-border: #475569;
    --svm-accordion-header-bg: #334155;
    --svm-accordion-header-color: #f1f5f9;
    --svm-accordion-content-bg: #1e293b;
    --svm-accordion-border: #475569;
  }
}

/* --- Print Styles --- */
@media print {
    .svm-playlist-sidebar,
    .svm-play-button-placeholder,
    .svm-completed-checkmark {
        display: none !important;
    }
    
    .svm-course-playlist-wrapper {
        flex-direction: column !important;
        box-shadow: none !important;
    }
    
    .svm-playlist-player-main {
        flex: none !important;
        width: 100% !important;
    }
}

/* Theater Mode Styles */
.svm-theater-mode {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 999999 !important;
    background: #000 !important;
}

/* Enhanced Accessibility */
@media (prefers-reduced-motion: reduce) {
    .svm-advanced-player-container * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .svm-btn {
        border: 2px solid white !important;
    }
    .svm-progress-filled {
        background: #ffff00 !important;
    }
}

/* ===================================================================
   ADVANCED PLAYER STYLES (for MP4)
   =================================================================== */
.svm-advanced-player-container {
    background: #000;
}

.svm-advanced-controls {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.1) 30%, rgba(0,0,0,0.8) 100%);
    color: white;
    z-index: 100;
    user-select: none;
    transition: opacity 0.3s ease;
    opacity: 0;
}

.svm-advanced-player-container:hover .svm-advanced-controls,
.svm-advanced-player-container .video-paused .svm-advanced-controls,
.svm-advanced-player-container:focus-within .svm-advanced-controls {
    opacity: 1;
}

.svm-progress-container { padding: 5px 15px; }
.svm-progress-bar { height: 5px; background: rgba(255,255,255,0.3); border-radius: 3px; cursor: pointer; position: relative; transition: height 0.2s ease; }
.svm-progress-bar:hover { height: 8px; }
.svm-progress-buffer, .svm-progress-filled { position: absolute; top: 0; left: 0; height: 100%; border-radius: 3px; }
.svm-progress-buffer { background: rgba(255,255,255,0.5); }
.svm-progress-filled { background: var(--svm-primary-color); }

.svm-controls-bar { display: flex; align-items: center; padding: 4px 15px 8px; gap: 12px; }
.svm-controls-left, .svm-controls-center, .svm-controls-right { display: flex; align-items: center; gap: 8px; }
.svm-controls-center { flex: 1; justify-content: center; }

.svm-btn { background: none; border: none; color: white; cursor: pointer; padding: 8px; border-radius: 50%; transition: var(--svm-transition); display: flex; }
.svm-btn:hover { background: rgba(255,255,255,0.2); }
.svm-icon { width: 22px; height: 22px; fill: currentColor; }
.svm-time-display { font-size: 14px; font-weight: 500; white-space: nowrap; }

/* Themes */
.svm-theme-dark .svm-advanced-controls {
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.3) 30%, rgba(0,0,0,0.95) 100%);
}
.svm-theme-modern {
    border-radius: var(--svm-border-radius) !important;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3) !important;
}
.svm-theme-modern .svm-advanced-controls {
    background: linear-gradient(180deg, transparent 0%, rgba(30,30,30,0.1) 30%, rgba(30,30,30,0.95) 100%);
    backdrop-filter: blur(10px);
    border-radius: 0 0 var(--svm-border-radius) var(--svm-border-radius);
}

/* =============================================================================
   ENHANCED: YouTube Interactive Chapters Styles
   ============================================================================= */

/* Main wrapper for player + chapters */
.svm-player-wrapper {
    display: flex;
    flex-wrap: wrap; /* Allows stacking on smaller screens */
    gap: 1.5rem;
    align-items: flex-start;
}

/* The container for the video embed */
.svm-player-wrapper .svm-player-embed {
    flex: 2 1 65%; /* Grow twice as fast, basis of 65% width */
    min-width: 320px; /* Minimum width before stacking */
}

/* Sidebar for chapters */
.svm-chapters-sidebar {
    flex: 1 1 30%; /* Grow once, basis of 30% width */
    min-width: 280px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: var(--svm-border-radius-sm, 8px);
    overflow: hidden;
    align-self: stretch; /* Make sidebar same height as player */
    display: flex;
    flex-direction: column;
}

.svm-chapters-sidebar h4 {
    margin: 0;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    background: #f1f5f9;
    color: #1e293b;
    border-bottom: 1px solid #e2e8f0;
}

.svm-chapters-list {
    list-style: none;
    margin: 0;
    padding: 0.5rem;
    overflow-y: auto;
    max-height: 450px; /* Adjust as needed */
}

.svm-chapter-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    cursor: pointer;
    border-radius: 6px;
    transition: background-color 0.2s ease, color 0.2s ease;
    border-bottom: 1px solid transparent; /* For spacing */
}

.svm-chapter-item:not(:last-child) {
    border-bottom: 1px solid #f1f5f9;
}

.svm-chapter-item:hover {
    background-color: #f1f5f9;
}

.svm-chapter-item.is-active {
    background-color: var(--svm-playlist-item-active-bg, #dbeafe);
    color: var(--svm-multi-course-title-bg, #2c807b);
    font-weight: 600;
}

.svm-chapter-time {
    font-family: 'Roboto Mono', 'Courier New', monospace;
    font-size: 0.85rem;
    background-color: #e2e8f0;
    color: #475569;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 500;
}

.is-active .svm-chapter-time {
    background-color: var(--svm-multi-course-title-bg, #2c807b);
    color: white;
}

.svm-chapter-title {
    flex-grow: 1;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* --- Responsive Adjustments --- */
@media (max-width: 968px) {
    .svm-player-wrapper {
        flex-direction: column;
    }
    
    .svm-playlist-sidebar {
        width: 100%;
        max-height: 300px; /* Adjust height for vertical layout */
        align-self: auto;
    }
}

/* رسائل التحميل والأخطاء */
.svm-loading {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 16px;
}

.svm-access-denied {
    text-align: center;
    padding: 40px;
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
}

.svm-error-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.svm-error-message {
    color: #dc3545;
    font-size: 16px;
    margin-bottom: 20px;
}

.svm-login-link {
    display: inline-block;
    padding: 10px 20px;
    background: #007cba;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.2s;
}

.svm-login-link:hover {
    background: #005a87;
    color: white;
}

.svm-error {
    padding: 20px;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    text-align: center;
}


/* تنسيق رسائل الوصول المقيد في صفحة الفيديو */
.svm-access-denied-container {
    text-align: center;
    padding: 60px 20px;
    background: #f8f9fa;
    border-radius: 8px;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.svm-lock-icon {
    font-size: 60px;
    opacity: 0.3;
    margin-bottom: 20px;
}

.svm-access-denied-container h3 {
    color: #333;
    margin-bottom: 15px;
}

.svm-error-message {
    color: #666;
    font-size: 16px;
    margin-bottom: 30px;
    max-width: 600px;
}

.svm-drip-info {
    background: #e3f2fd;
    padding: 15px 25px;
    border-radius: 4px;
    border-left: 4px solid #2196f3;
    margin-top: 20px;
}

.svm-drip-info p {
    margin: 0;
    color: #1976d2;
}

.svm-login-prompt,
.svm-enrollment-info {
    margin-top: 30px;
}

.svm-login-prompt .button,
.svm-enrollment-info .button {
    padding: 12px 30px;
    font-size: 16px;
    text-decoration: none;
}

.svm-enrollment-info p {
    margin-bottom: 20px;
    color: #666;
}

/* للشاشات الصغيرة */
@media (max-width: 768px) {
    .svm-access-denied-container {
        padding: 40px 15px;
        min-height: 300px;
    }
}