/* CSS variables from design.md */
:root {
  --color-primary-600: #4f46e5;
  --color-success-600: #059669;
  --color-warning-600: #d97706;
  --color-danger-600: #dc2626;
  --color-gray-50: #f9fafb;
  --color-gray-600: #4b5563;
  --color-gray-900: #111827;
  --color-green-600: #059669;
  --color-amber-600: #d97706;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin: 0;
  padding: 20px;
  background: var(--color-gray-50);
  color: var(--color-gray-900);
}

/* Loading state */
#loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

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

.loading-container p {
  font-size: 16px;
  color: var(--color-gray-600);
  margin: 0;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #e5e7eb;
  border-top-color: var(--color-primary-600);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 16px;
}

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

/* App header */
header {
  margin-bottom: 24px;
}

header h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-gray-900);
}

/* Main content */
main {
  max-width: 800px;
}

/* Status cards */
.status-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px;
  background: white;
  border-radius: 12px;
  border: 2px solid;
  margin-bottom: 24px;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.status-card--connected {
  border-color: var(--color-success-600);
}

.status-card--warning {
  border-color: var(--color-warning-600);
}

.status-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.status-card--connected .status-card__icon {
  background: #dcfce7;
}

.status-card--warning .status-card__icon {
  background: #fef3c7;
}

.status-card__content {
  flex: 1;
}

.status-card__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-gray-900);
  margin: 0 0 4px;
}

.status-card__phone {
  font-size: 16px;
  color: var(--color-gray-600);
  margin: 0;
}

.status-card__meta {
  font-size: 12px;
  color: var(--color-gray-600);
  margin: 4px 0 0;
}

.status-card__description {
  font-size: 14px;
  color: var(--color-gray-600);
  margin: 0;
}

/* SVG icons */
.w-5 {
  width: 20px;
  height: 20px;
}

.h-5 {
  height: 20px;
}

.text-green-600 {
  color: var(--color-green-600);
}

.text-amber-600 {
  color: var(--color-amber-600);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

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

.btn--primary {
  background: var(--color-primary-600);
  color: white;
}

.btn--primary:hover:not(:disabled) {
  background: #4338ca;
}

.btn--danger {
  background: var(--color-danger-600);
  color: white;
}

.btn--danger:hover:not(:disabled) {
  background: #b91c1c;
}

/* Responsive design */
@media (max-width: 768px) {
  body {
    padding: 12px;
  }

  .status-card {
    padding: 16px;
    gap: 12px;
  }

  .status-card__title {
    font-size: 16px;
  }

  .status-card__phone {
    font-size: 14px;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}