/**
 * Phase 7: Design system — tokens and shared components.
 * Use with theme-premium.css for full site consistency.
 * Tokens align with theme-premium; components are minimal and reusable.
 */
:root {
  /* Spacing */
  --ds-space-1: 0.25rem;
  --ds-space-2: 0.5rem;
  --ds-space-3: 0.75rem;
  --ds-space-4: 1rem;
  --ds-space-5: 1.25rem;
  --ds-space-6: 1.5rem;
  --ds-space-8: 2rem;
  --ds-space-10: 2.5rem;
  /* Radii */
  --ds-radius-sm: 8px;
  --ds-radius: 12px;
  --ds-radius-lg: 16px;
  /* Buttons (extend theme) */
  --ds-btn-padding: 12px 20px;
  --ds-btn-radius: var(--pwm-radius, 12px);
  --ds-btn-font: var(--pwm-font, inherit);
}

/* Shared button base */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ds-space-2);
  padding: var(--ds-btn-padding);
  font-family: var(--ds-btn-font);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--ds-btn-radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.15s, background 0.2s;
}

.ds-btn:hover { opacity: 0.95; }
.ds-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.ds-btn-primary {
  background: var(--pwm-accent, #1E3A5F);
  color: #fff;
}

.ds-btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
}

/* Card */
.ds-card {
  background: var(--pwm-surface, #fff);
  border: 1px solid var(--pwm-border, #E8E6E1);
  border-radius: var(--pwm-radius-lg, 20px);
  padding: var(--ds-space-6);
  box-shadow: var(--pwm-shadow, 0 4px 20px rgba(0,0,0,0.06));
}

/* Input */
.ds-input {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--pwm-text, #0F172A);
  background: var(--pwm-surface, #fff);
  border: 1px solid var(--pwm-border, #E8E6E1);
  border-radius: var(--ds-radius-sm);
  box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.ds-input:focus {
  outline: none;
  border-color: var(--pwm-accent);
  box-shadow: 0 0 0 3px var(--pwm-gold-soft, rgba(184,134,11,0.12));
}

/* Status badges */
.ds-badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 999px;
}

.ds-badge-success { background: #dcfce7; color: #166534; }
.ds-badge-warning { background: #fef3c7; color: #92400e; }
.ds-badge-error { background: #fee2e2; color: #991b1b; }
.ds-badge-info { background: #dbeafe; color: #1e40af; }

/* Empty / loading states */
.ds-empty {
  text-align: center;
  padding: var(--ds-space-10);
  color: var(--pwm-text-muted, #475569);
  font-size: 1rem;
}

.ds-loading {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2px solid var(--pwm-border);
  border-top-color: var(--pwm-accent);
  border-radius: 50%;
  animation: ds-spin 0.8s linear infinite;
}

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