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

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-card: #1c2333;
  --bg-hover: #252d3f;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --accent-dim: rgba(88, 166, 255, 0.15);
  --danger: #f85149;
  --danger-hover: #ff6b63;
  --success: #3fb950;
  --border: #30363d;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --sidebar-width: 260px;
  --topbar-height: 56px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans Arabic', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

/* ========== القائمة الجانبية ========== */
#sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--sidebar-width);
  height: 100%;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

#sidebar.open { transform: translateX(0); }

#sidebarOverlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s;
}

#sidebarOverlay.open {
  opacity: 1;
  pointer-events: auto;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h1 {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), #a371f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#closeSidebar {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 28px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

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

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s;
}

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

.nav-btn.active {
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  text-align: center;
}

/* ========== الشريط العلوي ========== */
#topBar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 10px;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

#menuToggle {
  background: none;
  border: none;
  color: var(--text-primary);
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
}

#menuToggle:hover { background: var(--bg-hover); }

#pageTitle {
  font-size: 18px;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

#searchContainer {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 0 14px;
  max-width: 400px;
  margin-right: auto;
}

#searchContainer:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

#searchIcon {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  flex-shrink: 0;
}

#searchInput {
  flex: 1;
  background: none;
  border: none;
  padding: 10px 8px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  min-width: 0;
}

#searchInput::placeholder { color: var(--text-muted); }

/* ========== المحتوى الرئيسي ========== */
#mainContent {
  padding-top: var(--topbar-height);
  height: 100vh;
  overflow-y: auto;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

#mainContent::-webkit-scrollbar { width: 4px; }
#mainContent::-webkit-scrollbar-track { background: transparent; }
#mainContent::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

#contentArea {
  padding: 16px 14px calc(80px + var(--safe-bottom));
  max-width: 800px;
  margin: 0 auto;
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* ========== أقسام المحتوى ========== */
.section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.section-header h3 {
  font-size: 17px;
  font-weight: 700;
}

.count-badge {
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 12px;
}

/* ========== فئات البث المباشر ========== */
#liveCategories {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0 12px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

#liveCategories::-webkit-scrollbar { display: none; }

.category-chip {
  flex-shrink: 0;
  padding: 7px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.category-chip:hover { background: var(--bg-hover); color: var(--text-primary); }
.category-chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ========== شبكة القنوات ========== */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}

.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 10px;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
  overflow: hidden;
}

.channel-card:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.channel-card .logo {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  object-fit: contain;
  background: rgba(0,0,0,0.3);
  margin: 0 auto 8px;
  display: block;
}

.channel-card .logo-fallback {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(135deg, #1a2332, #2a3a52);
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

.channel-card .name {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.channel-card .meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.channel-card .fav-badge {
  position: absolute;
  top: 6px;
  left: 6px;
  color: var(--danger);
  font-size: 14px;
  opacity: 0;
  transition: opacity 0.15s;
}

.channel-card .fav-badge.show { opacity: 1; }

.channel-card .hd-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background: var(--success);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
}

.channel-card.stream-card {
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: right;
  padding: 12px 14px;
}

.channel-card.stream-card .logo,
.channel-card.stream-card .logo-fallback {
  width: 44px;
  height: 44px;
  margin: 0;
  flex-shrink: 0;
}

.channel-card.stream-card .info {
  flex: 1;
  min-width: 0;
}

.channel-card.stream-card .info .name { font-size: 14px; }

.channel-card.stream-card .info .meta {
  font-size: 12px;
  margin-top: 2px;
}

/* ========== الإعدادات ========== */
.settings-section { margin-bottom: 24px; }

.settings-section h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 10px;
  padding-right: 4px;
}

.setting-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.setting-card label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.setting-card input[type="url"],
.setting-card input[type="text"],
.setting-card input[type="password"] {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  direction: ltr;
  text-align: left;
}

.setting-card input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.setting-card label input[type="checkbox"] {
  margin-left: 10px;
  accent-color: var(--accent);
}

.setting-divider {
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  position: relative;
  margin: 4px 0;
}

.setting-divider::before,
.setting-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: calc(50% - 20px);
  height: 1px;
  background: var(--border);
}

.setting-divider::before { right: 0; }
.setting-divider::after { left: 0; }

.about-card p { font-size: 13px; color: var(--text-secondary); }
.about-card p:first-child { color: var(--text-primary); font-weight: 600; font-size: 14px; }
.channel-stats { margin-top: 8px; color: var(--accent) !important; }

/* ========== الأزرار ========== */
.btn-primary {
  padding: 12px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { transform: scale(0.98); }

.btn-danger {
  padding: 10px 16px;
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-danger:hover { background: var(--danger); color: #fff; }

/* ========== مشغل الفيديو ========== */
#playerOverlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}

#playerOverlay.open {
  opacity: 1;
  pointer-events: auto;
}

#playerContainer {
  width: 100%;
  height: 100%;
  background: #000;
  display: flex;
  flex-direction: column;
  position: relative;
}

#playerHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent);
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
}

#playerInfo h3 {
  font-size: 15px;
  font-weight: 600;
}

#playerInfo #playerCategory {
  font-size: 12px;
  color: var(--text-muted);
}

#playerActions {
  display: flex;
  align-items: center;
  gap: 6px;
}

#playerActions button {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 26px;
  padding: 6px 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}

#playerActions button:hover { color: var(--text-primary); background: rgba(255,255,255,0.1); }

#favToggle.active svg { fill: var(--danger); color: var(--danger); }

#videoWrapper {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#videoPlayer {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

#videoPlayer::-webkit-media-controls { /* تحكمات native */ }

#loadingSpinner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.7);
  gap: 12px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

#loadingSpinner p { color: var(--text-secondary); font-size: 13px; }

#errorOverlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.8);
  gap: 10px;
  padding: 20px;
}

#errorOverlay svg { color: var(--danger); }
#errorOverlay p { color: var(--text-secondary); font-size: 14px; text-align: center; }

.hidden { display: none !important; }

/* ========== أزرار الدعم ========== */
.support-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.15s;
  border: 1px solid var(--border);
}
.support-btn.paypal {
  background: #003087;
  color: #fff;
  border-color: #003087;
}
.support-btn.paypal:hover { background: #00246a; }
.support-btn.email {
  background: var(--bg-secondary);
  color: var(--text-primary);
}
.support-btn.email:hover { background: var(--bg-hover); }

/* ========== تحسينات الهواتف الضيقة ========== */
@media (max-width: 420px) {
  .channel-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 8px;
  }
  #contentArea { padding: 12px 10px calc(70px + var(--safe-bottom)); }
  .channel-card { padding: 10px 8px; }
  .channel-card .logo,
  .channel-card .logo-fallback { width: 44px; height: 44px; }
  #sidebar { width: 100%; }
}

@media (min-width: 768px) {
  #sidebar { transform: none; position: sticky; top: 0; height: 100vh; border-left: none; border-right: 1px solid var(--border); }
  #sidebarOverlay, #menuToggle, #closeSidebar { display: none; }
  #app { display: flex; }
  #mainContent { flex: 1; min-width: 0; }
  #topBar { right: 0; }
  .channel-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
}

/* ========== Notifications ========== */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 14px;
  z-index: 3000;
  opacity: 0;
  transition: all 0.3s;
  white-space: nowrap;
  max-width: 90%;
  text-align: center;
  box-shadow: var(--shadow);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }