/* ==================== VARIABLES ==================== */
:root {
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --secondary-color: #22c55e;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --dark-bg: #0f0f0f;
  --card-bg: #1a1a1a;
  --card-border: #2a2a2a;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
}

/* ==================== RESET & BASE ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: var(--dark-bg);
  color: var(--text-primary);
  overflow-x: hidden;
}

a {
  color: var(--primary-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ==================== LAYOUT ==================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==================== HEADER ==================== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--card-border);
}

.header h1 {
  font-size: 1.2rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-nav {
  display: flex;
  gap: 15px;
}

.header-nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.header-nav a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

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

.btn-secondary {
  background-color: var(--card-bg);
  color: var(--text-primary);
  border: 1px solid var(--card-border);
}

.btn-secondary:hover {
  background-color: var(--card-border);
}

.btn-success {
  background-color: var(--secondary-color);
  color: white;
}

.btn-danger {
  background-color: var(--danger-color);
  color: white;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: 50%;
}

.btn-icon.active {
  background-color: var(--danger-color);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==================== CARDS ==================== */
.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 24px;
}

.card-title {
  font-size: 1.2rem;
  margin-bottom: 16px;
}

/* ==================== HOME PAGE ==================== */
.home-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  text-align: center;
}

.home-logo {
  font-size: 4rem;
  margin-bottom: 20px;
}

.home-title {
  font-size: 2rem;
  margin-bottom: 10px;
}

.home-subtitle {
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.home-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 300px;
}

.home-buttons .btn {
  width: 100%;
}

/* ==================== BROADCAST PAGE ==================== */
.broadcast-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.video-container {
  flex: 1;
  position: relative;
  background-color: #000;
  overflow: hidden;
}

.video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 15px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.7), transparent);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.room-code-display {
  background-color: rgba(0,0,0,0.6);
  padding: 10px 16px;
  border-radius: 8px;
  backdrop-filter: blur(10px);
}

.room-code-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.room-code-value {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--secondary-color);
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--danger-color);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
}

.live-indicator::before {
  content: '';
  width: 8px;
  height: 8px;
  background-color: white;
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.viewer-count {
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: rgba(0,0,0,0.6);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  backdrop-filter: blur(10px);
}

.controls-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.controls-row {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.zoom-control {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: rgba(0,0,0,0.6);
  padding: 10px 20px;
  border-radius: 25px;
  backdrop-filter: blur(10px);
}

.zoom-control input[type="range"] {
  width: 150px;
  accent-color: var(--primary-color);
}

.zoom-label {
  font-size: 0.85rem;
  min-width: 45px;
  text-align: center;
}

/* ==================== VIEWER PAGE ==================== */
.viewer-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.join-form {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.join-card {
  width: 100%;
  max-width: 400px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background-color: var(--dark-bg);
  color: var(--text-primary);
  font-size: 1.2rem;
  text-align: center;
  letter-spacing: 4px;
  text-transform: uppercase;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-input::placeholder {
  letter-spacing: 0;
  text-transform: none;
}

.viewer-video-container {
  flex: 1;
  position: relative;
  background-color: #000;
  display: none;
}

.viewer-video-container.active {
  display: block;
}

.viewer-video-container video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.connection-status {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--card-border);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

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

/* ==================== RECORDINGS PAGE ==================== */
.recordings-container {
  padding: 20px;
}

.recordings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.recordings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.recording-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}

.recording-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary-color);
}

.recording-thumbnail {
  aspect-ratio: 16/9;
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.recording-thumbnail video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.play-overlay {
  position: absolute;
  font-size: 3rem;
  opacity: 0.8;
}

.recording-info {
  padding: 16px;
}

.recording-title {
  font-size: 1rem;
  margin-bottom: 8px;
}

.recording-meta {
  display: flex;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.recording-actions {
  display: flex;
  gap: 10px;
}

/* ==================== VIDEO PLAYER MODAL ==================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0,0,0,0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

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

.modal-content {
  width: 100%;
  max-width: 900px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-video {
  width: 100%;
  border-radius: 8px;
  background-color: #000;
}

/* ==================== ALERTS & STATUS ==================== */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.alert-success {
  background-color: rgba(34, 197, 94, 0.2);
  border: 1px solid var(--secondary-color);
  color: var(--secondary-color);
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.2);
  border: 1px solid var(--danger-color);
  color: var(--danger-color);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.2);
  border: 1px solid var(--warning-color);
  color: var(--warning-color);
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 6px;
}

.status-dot.online {
  background-color: var(--secondary-color);
}

.status-dot.offline {
  background-color: var(--danger-color);
}

/* ==================== EMPTY STATE ==================== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: 20px;
  opacity: 0.5;
}

.empty-state-title {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--text-primary);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .header h1 {
    font-size: 1rem;
  }

  .header-nav {
    gap: 10px;
  }

  .header-nav a {
    font-size: 0.8rem;
  }

  .home-title {
    font-size: 1.5rem;
  }

  .recordings-grid {
    grid-template-columns: 1fr;
  }

  .zoom-control input[type="range"] {
    width: 100px;
  }

  .controls-row {
    gap: 12px;
  }

  .btn-icon {
    width: 44px;
    height: 44px;
  }
}

/* ==================== UTILITIES ==================== */
.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--text-secondary);
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }