/* Variables & Global Styles */
:root {
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --accent-blue: #0284c7;
  --accent-blue-hover: #0369a1;
  --green: #22c55e;
  --red: #ef4444;
  --gold: #d97706;
  
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

h1, h2, h3, h4 {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
}

/* Header Styles */
.app-header {
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  font-size: 1.75rem;
  color: var(--primary);
}

.logo-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-left: 0.5rem;
  border-left: 1px solid var(--border-color);
  padding-left: 0.5rem;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  background-color: #f1f5f9;
  padding: 0.25rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
}

.lang-btn {
  border: none;
  background: transparent;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.lang-btn.active {
  background-color: var(--card-bg);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Container */
.dashboard-container {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 2rem auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Stats Row */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.stat-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.stat-icon-wrapper.blue { background-color: #e0f2fe; color: #0284c7; }
.stat-icon-wrapper.indigo { background-color: #e0e7ff; color: #4f46e5; }
.stat-icon-wrapper.purple { background-color: #f3e8ff; color: #a855f7; }
.stat-icon-wrapper.gold { background-color: #fef3c7; color: #d97706; }
.stat-icon-wrapper.green-bg { background-color: #dcfce7; color: #22c55e; }
.stat-icon-wrapper.red-bg { background-color: #fee2e2; color: #ef4444; }

.stat-details {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  overflow: hidden;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-details h3 {
  font-size: 1.15rem;
  color: var(--text-primary);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

/* Badge and Pulse Indicators */
.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.15rem;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.pulse-dot.green {
  background-color: var(--green);
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  animation: pulse 1.8s infinite;
}

.pulse-dot.red {
  background-color: var(--red);
  box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  animation: pulse 1.8s infinite;
}

.status-text {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.badge-oper {
  font-size: 1.15rem;
  color: var(--text-primary);
}

.badge-oper.active {
  color: var(--gold) !important;
  font-weight: 700;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
  }
}

/* Main Grid Layout */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

.left-column, .right-column {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Dashboard Cards */
.dashboard-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: #fafbfc;
}

.card-header h2 {
  font-size: 1.15rem;
  color: var(--text-primary);
}

.card-header i {
  font-size: 1.25rem;
}

.icon-yt { color: #ff0000; }
.icon-action { color: var(--accent-blue); }
.icon-music { color: var(--primary); }

.card-body {
  padding: 1.5rem;
}

/* YouTube IFrame Embed container */
.video-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  padding-top: 25px;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1rem;
  background-color: #000000;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Custom Playlist Styles */
.custom-playlist {
  margin-top: 1rem;
  margin-bottom: 1rem;
  max-height: 250px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #fff;
}

#playlist-items {
  list-style: none;
  padding: 0;
  margin: 0;
}

.playlist-item {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

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

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

.playlist-item.playing {
  background-color: #e0e7ff;
  border-left: 4px solid var(--primary);
  padding-left: calc(1rem - 4px);
}

.song-info {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.song-index {
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  min-width: 20px;
}

.song-title {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.song-duration {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.loading-playlist, .error-playlist {
  padding: 1rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.playlist-tip {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-style: italic;
  text-align: center;
}

/* Form Styles */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text-primary);
  background-color: #f8fafc;
  transition: all 0.2s ease;
}

.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background-color: var(--card-bg);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 1.75rem 0;
}

/* Action Section */
.action-section h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.section-desc {
  font-size: 0.825rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

/* Call Input Group */
.call-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.call-input-group input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text-primary);
  background-color: #f8fafc;
  transition: all 0.2s ease;
}
.call-input-group input:focus {
  outline: none;
  border-color: var(--primary);
  background-color: var(--card-bg);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

/* Buttons */
.primary-btn {
  width: 100%;
  border: none;
  background-color: var(--primary);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

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

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

.primary-btn:disabled {
  background-color: #cbd5e1;
  color: #94a3b8;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.call-btn {
  background-color: var(--accent-blue);
}

.call-btn:hover {
  background-color: var(--accent-blue-hover);
}

.suggest-btn {
  background: linear-gradient(135deg, var(--primary), var(--accent-blue));
}

.suggest-btn:hover {
  filter: brightness(1.05);
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: #0f172a;
  color: #ffffff;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 1000;
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
}

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

.toast-icon {
  color: var(--green);
  font-size: 1.15rem;
}

/* Footer */
.app-footer {
  background-color: var(--card-bg);
  border-top: 1px solid var(--border-color);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: auto;
}