/**
 * Styles for P2P File Transfer
 */

:root {
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --secondary-color: #8b5cf6;
  --danger-color: #ef4444;
  --danger-hover: #dc2626;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --border-color: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: var(--text-primary);
  min-height: 100vh;
  padding: 20px;
  line-height: 1.6;
}

.container {
  max-width: 800px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 40px;
  padding: 40px 20px;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 10px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 30px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--text-primary);
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.input-group {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

input[type="text"] {
  flex: 1;
  padding: 14px 18px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-color);
  color: var(--text-primary);
  font-size: 1rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}

input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.btn {
  padding: 14px 28px;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  white-space: nowrap;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

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

.btn-secondary:hover:not(:disabled) {
  background: #7c3aed;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(139, 92, 246, 0.4);
}

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

.btn-danger:hover {
  background: var(--danger-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(239, 68, 68, 0.4);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: var(--bg-color);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.status-disconnected {
  background: var(--text-secondary);
  animation: none;
}

.status-connecting {
  background: var(--warning-color);
}

.status-connected {
  background: var(--success-color);
}

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

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

.status-text {
  font-weight: 500;
  color: var(--text-primary);
}

.peer-info {
  background: var(--bg-color);
  padding: 16px;
  background: #f8fafc;
  padding: 16px;
  border-radius: 12px;
  margin-bottom: 24px;
  border: 1px solid #e5e7eb;
}

.peer-info p {
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
}

.peer-info p:last-child {
  margin-bottom: 0;
}

.room-display {
  font-family: monospace;
  font-size: 1.1rem;
  color: var(--primary-color);
  background: #eefffb;
  padding: 2px 6px;
  border-radius: 4px;
}

.badge {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.badge-waiting {
  background: #fef3c7;
  color: #d97706;
}

.badge-ready {
  background: #d1fae5;
  color: #059669;
}

.badge-connected {
  background: #e0e7ff;
  color: #4338ca;
}

/* Transfer Controls */
.transfer-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.transfer-controls button {
  flex: 1;
}

/* Progress */
.transfer-status {
  text-align: center;
  margin-top: 16px;
  font-weight: 500;
}

.file-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-weight: 500;
}

.progress-container {
  height: 8px;
  background: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
  margin: 12px 0;
}

.progress-bar {
  width: 100%;
  height: 100%;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  width: 0%;
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progress-text {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Instructions */
.info-card ol {
  padding-left: 20px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.info-card li {
  margin-bottom: 8px;
}

.features {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.feature-tag {
  font-size: 0.8rem;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary-color);
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 500;
}

footer {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 640px) {
  h1 {
    font-size: 2rem;
  }

  .card {
    padding: 20px;
  }

  .input-group {
    flex-direction: column;
  }

  .transfer-controls {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}