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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  color: #e4e4e4;
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

.header {
  text-align: center;
  margin-bottom: 30px;
}

.header h1 {
  font-size: 2.5rem;
  background: linear-gradient(90deg, #00d4ff, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}

.subtitle {
  color: #888;
  font-size: 1.1rem;
}

/* Controls */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  align-items: flex-end;
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 20px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.control-group label {
  font-size: 0.85rem;
  color: #aaa;
}

.control-group select,
.control-group input {
  padding: 10px 15px;
  border: 1px solid #444;
  border-radius: 8px;
  background: #2a2a4a;
  color: #fff;
  font-size: 1rem;
  min-width: 120px;
}

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

#tv-controls {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

#tv-controls label {
  margin-left: 10px;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 600;
}

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

.btn-primary {
  background: linear-gradient(90deg, #00d4ff, #0099cc);
  color: #000;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
}

.btn-danger {
  background: linear-gradient(90deg, #ff4444, #cc0000);
  color: #fff;
}

.btn-danger:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 68, 68, 0.4);
}

.btn-secondary {
  background: linear-gradient(90deg, #666, #444);
  color: #fff;
}

.btn-secondary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(100, 100, 100, 0.4);
}

/* Status Section */
.status-section {
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 20px;
}

.progress-container {
  width: 100%;
  height: 8px;
  background: #333;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #00d4ff, #7c3aed);
  transition: width 0.3s ease;
}

.status-text {
  display: flex;
  justify-content: space-between;
  color: #aaa;
  font-size: 0.95rem;
}

#timer {
  font-family: 'Courier New', monospace;
  font-size: 1.1rem;
  color: #00d4ff;
}

.test-info {
  margin-top: 10px;
  font-size: 0.9rem;
  color: #888;
}

/* Results Summary */
.results-summary {
  background: rgba(0, 212, 255, 0.1);
  border: 2px solid #00d4ff;
  padding: 25px;
  border-radius: 12px;
  margin-bottom: 20px;
  text-align: center;
}

.results-summary h2 {
  color: #00d4ff;
  margin-bottom: 15px;
}

.best-provider {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.best-provider .provider-name {
  font-size: 2rem;
  font-weight: bold;
  color: #fff;
}

.best-provider .provider-stats {
  display: flex;
  gap: 30px;
  color: #aaa;
}

.best-provider .stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.best-provider .stat-value {
  font-size: 1.5rem;
  color: #00d4ff;
  font-weight: bold;
}

.best-provider .stat-label {
  font-size: 0.85rem;
}

/* Providers Grid */
.providers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 15px;
  margin-bottom: 30px;
}

.provider-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  overflow: hidden;
  border: 2px solid transparent;
  transition: all 0.3s;
}

.provider-card.testing {
  border-color: #ffd700;
  animation: pulse 1.5s infinite;
}

.provider-card.success {
  border-color: #00ff88;
}

.provider-card.failed {
  border-color: #ff4444;
}

.provider-card.best {
  border-color: #00d4ff;
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.provider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 15px;
  background: rgba(0, 0, 0, 0.3);
}

.provider-name {
  font-weight: 600;
  font-size: 1rem;
}

.provider-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
}

.status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #666;
}

.status-indicator.loading {
  background: #ffd700;
  animation: blink 1s infinite;
}

.status-indicator.success {
  background: #00ff88;
}

.status-indicator.failed {
  background: #ff4444;
}

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

.provider-iframe-container {
  width: 100%;
  height: 200px;
  background: #000;
  position: relative;
}

.provider-iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.provider-iframe-container .loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
}

.spinner {
  width: 30px;
  height: 30px;
  border: 3px solid #333;
  border-top-color: #00d4ff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.provider-metrics {
  padding: 12px 15px;
  display: flex;
  justify-content: space-around;
  background: rgba(0, 0, 0, 0.2);
  font-size: 0.85rem;
}

.metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.metric-value {
  font-weight: bold;
  color: #00d4ff;
}

.metric-label {
  color: #888;
  font-size: 0.75rem;
}

/* Results Table */
.results-table-section {
  background: rgba(255, 255, 255, 0.05);
  padding: 25px;
  border-radius: 12px;
}

.results-table-section h2 {
  margin-bottom: 15px;
  color: #fff;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
}

.results-table th,
.results-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid #333;
}

.results-table th {
  background: rgba(0, 0, 0, 0.3);
  color: #00d4ff;
  font-weight: 600;
}

.results-table tr:hover {
  background: rgba(255, 255, 255, 0.05);
}

.results-table .rank-1 {
  background: rgba(0, 212, 255, 0.2);
}

.results-table .rank-2 {
  background: rgba(192, 192, 192, 0.1);
}

.results-table .rank-3 {
  background: rgba(205, 127, 50, 0.1);
}

.status-badge {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-badge.working {
  background: rgba(0, 255, 136, 0.2);
  color: #00ff88;
}

.status-badge.failed {
  background: rgba(255, 68, 68, 0.2);
  color: #ff4444;
}

.status-badge.timeout {
  background: rgba(255, 215, 0, 0.2);
  color: #ffd700;
}

/* History Section */
.history-section {
  background: rgba(255, 255, 255, 0.05);
  padding: 25px;
  border-radius: 12px;
  margin-top: 30px;
}

.history-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.history-header-bar h2 {
  color: #fff;
  margin: 0;
}

.history-section > .history-note {
  color: #888;
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.history-item {
  background: rgba(0, 0, 0, 0.3);
  padding: 15px 20px;
  border-radius: 10px;
  border-left: 4px solid #00d4ff;
}

.history-item .history-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  flex-wrap: wrap;
  gap: 10px;
}

.history-item .history-date {
  color: #aaa;
  font-size: 0.9rem;
}

.history-item .history-media {
  color: #00d4ff;
  font-weight: 500;
}

.history-item .history-stats {
  display: flex;
  gap: 25px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.history-item .history-best {
  color: #e4e4e4;
}

.history-item .history-best strong {
  color: #00ff88;
}

.history-item .history-working {
  color: #aaa;
}

.btn-small {
  padding: 6px 12px;
  font-size: 0.85rem;
  margin-right: 8px;
}

.results-summary .history-note {
  color: #888;
  font-size: 0.9rem;
  margin-top: 5px;
}

/* Responsive */
@media (max-width: 768px) {
  .controls {
    flex-direction: column;
    align-items: stretch;
  }

  .control-group {
    width: 100%;
  }

  .control-group select,
  .control-group input {
    width: 100%;
  }

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

  .header h1 {
    font-size: 1.8rem;
  }
}