:root {
  --primary-color: #9c27b0;
  --card-hover-shadow: rgba(0, 0, 0, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Vazirmatn', sans-serif;
  margin: 0;
  background: #f5f5f5;
  overscroll-behavior: contain;
}

/* ======= فهرست کارت‌های کانال ======= */
.tv-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  padding: 12px;
  max-width: 1200px;
  margin: auto;
}
@media (max-width: 600px) {
  .tv-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 8px;
  }
}
.tv-card {
  background: #333;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
}
.tv-card:hover,
.tv-card:focus-within {
  transform: scale(1.02);
  box-shadow: 0 8px 20px var(--card-hover-shadow);
}
.tv-card.active {
  border: 3px solid var(--primary-color);
}
.tv-card:focus {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
}
.tv-card img.tv-thumb {
  width: 80%;
  height: auto;
  object-fit: contain;
}
.tv-card .tv-text {
  color: #fff;
  font-size: 14px;
  text-align: center;
  line-height: 1.2;
  width: 80%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ======= پنجرهٔ پاپ‌آپ ======= */
.tv-popup-box {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background: rgba(20, 20, 20, 0.92);
  z-index: 9999;
  overflow: hidden;
}
.tv-popup-box[aria-hidden="false"] {
  display: block;
}
.tv-popup-content {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

/* ======= بخش ویدئو ======= */
.video-container {
  position: relative;
  width: 100%;
  background: black;
  overflow: hidden;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 600px) {
  .video-container {
    height: 60vh;
    flex: none;
  }
}
.video-placeholder {
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease;
}
.video-placeholder.hidden {
  opacity: 0;
  pointer-events: none;
}
.video-placeholder::after {
  content: "";
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
#tvVideo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: black;
  opacity: 0;
  transition: opacity 0.4s ease;
}

/* برچسب پخش */
.overlay-info {
  position: absolute;
  bottom: 60px;
  left: 12px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 16px;
  padding: 6px 10px;
  border-radius: 4px;
  z-index: 1002;
  transition: all 0.3s ease;
}
@media (max-width: 600px) {
  .overlay-info {
    bottom: 55px;
    font-size: 14px;
    padding: 4px 8px;
  }
}

/* نوار کنترل */
.controls {
  position: absolute;
  bottom: 12px;
  left: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.6);
  padding: 6px;
  border-radius: 4px;
  z-index: 1003;
}
.controls button {
  background: none;
  border: none;
  color: white;
  font-size: 20px;
  cursor: pointer;
  padding: 4px;
}
@media (max-width: 600px) {
  .controls {
    gap: 6px;
    padding: 4px;
  }
  .controls button {
    font-size: 18px;
    padding: 3px;
  }
}
.controls button:focus {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
.controls .seek-bar {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  position: relative;
  cursor: pointer;
  margin: 0 4px;
}
.controls .seek-bar .progress {
  height: 100%;
  background: var(--primary-color);
  width: 0%;
  border-radius: 2px;
}

/* پیام Fallback */
.fallback-message {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #fff;
  font-size: 14px;
  background: rgba(0, 0, 0, 0.7);
  padding: 6px 10px;
  border-radius: 4px;
  z-index: 1002;
  display: none;
  text-align: center;
}
.fallback-message.show {
  display: block;
}
.fallback-message button {
  margin-top: 8px;
  background: var(--primary-color);
  color: #fff;
  border: none;
  padding: 4px 8px;
  border-radius: 3px;
  cursor: pointer;
}
.fallback-message button:focus {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* دکمه بستن */
.close-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  border: none;
  font-size: 20px;
  width: 32px;
  height: 32px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1004;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}
.close-btn:hover {
  background: rgba(156, 39, 176, 0.8);
  transform: scale(1.1);
}
.close-btn:focus {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
@media (max-width: 600px) {
  .close-btn {
    font-size: 18px;
    width: 28px;
    height: 28px;
    top: 8px;
    right: 8px;
  }
}

/* نوار اسکرولی کف صفحه */
.tv-scroll-list {
  display: flex;
  justify-content: flex-start;
  overflow-x: auto;
  background: #222;
  padding: 10px 0;
  gap: 8px;
  border-top: 1px solid #444;
  width: 100%;
  box-sizing: border-box;
  flex: 0 0 auto;
}
.tv-scroll-item {
  width: 60px;
  height: 40px;
  background: #555;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  border-radius: 6px;
  flex: 0 0 auto;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.2s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.tv-scroll-item:hover,
.tv-scroll-item:focus {
  transform: scale(1.05);
}
.tv-scroll-item.active {
  border-color: var(--primary-color);
}
.tv-scroll-item:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}
.tv-scroll-item .tv-scroll-text {
  color: #fff;
  font-size: 10px;
  text-align: center;
  line-height: 1.2;
  padding: 2px;
}