:root {
  --bg-color: #0b0f19;
  --surface-color: #111827;
  --surface-hover: #1f2937;
  --border-color: #1f2937;
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent-cyan: #38bdf8;
  --accent-blue: #2563eb;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-red: #ef4444;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 24px;
  width: 100%;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 36px;
  flex-wrap: wrap;
  gap: 16px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-icon {
  font-size: 32px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 12px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header h1 {
  font-size: 24px;
  margin: 0;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.header .subtitle {
  margin: 4px 0 0 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.badge {
  font-size: 11px;
  background-color: rgba(56, 189, 248, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 2px 8px;
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-weight: 600;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
}

.status-pill.available {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-pill.busy {
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-pill.checking {
  background: rgba(156, 163, 175, 0.1);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
}

.card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

.card-header h2 {
  font-size: 20px;
  margin: 0 0 8px 0;
}

.description {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.6;
  margin: 0 0 24px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.feature-item {
  display: flex;
  gap: 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 16px;
  border-radius: 10px;
}

.feature-icon {
  font-size: 24px;
}

.feature-item h4 {
  margin: 0 0 4px 0;
  font-size: 14px;
  font-weight: 600;
}

.feature-item p {
  margin: 0;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.launch-form {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.form-group input {
  width: 100%;
  max-width: 380px;
  background: #0b0f19;
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 12px 16px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  outline: none;
}

.form-group input:focus {
  border-color: var(--accent-cyan);
}

.input-hint {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

.input-hint code {
  color: var(--accent-cyan);
}

.btn {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0369a1 0%, #1d4ed8 100%);
}

.btn-secondary {
  background: var(--surface-hover);
  color: #fff;
  border: 1px solid var(--border-color);
  text-decoration: none;
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.25);
}

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

.live-tag {
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-green);
  background: rgba(16, 185, 129, 0.1);
  padding: 4px 10px;
  border-radius: 9999px;
  display: inline-block;
  margin-bottom: 8px;
}

.timer-box {
  background: #0b0f19;
  border: 1px solid var(--border-color);
  padding: 10px 18px;
  border-radius: 10px;
  text-align: right;
}

.timer-label {
  display: block;
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-weight: 600;
}

.timer-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.session-box {
  background: rgba(56, 189, 248, 0.03);
  border: 1px solid rgba(56, 189, 248, 0.15);
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 24px;
}

.url-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: #0b0f19;
  border: 1px solid var(--border-color);
  padding: 10px 16px;
  border-radius: 8px;
}

.url-display code {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 14px;
}

.guide-box {
  background: #0b0f19;
  border: 1px solid var(--border-color);
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 24px;
}

.guide-box h3 {
  margin: 0 0 12px 0;
  font-size: 14px;
}

.guide-box ol {
  margin: 0;
  padding-left: 20px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.8;
}

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  margin-top: auto;
  padding: 24px 0;
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
}