/* CALTECH Capacitacion — Design System */
:root {
  --color-primary: #1e40af;       /* blue-800 — corporate primary */
  --color-primary-light: #dbeafe; /* blue-100 */
  --color-primary-dark: #1e3a8a;  /* blue-900 */
  --color-success: #16a34a;       /* green-600 */
  --color-success-light: #dcfce7; /* green-100 */
  --color-danger: #dc2626;        /* red-600 */
  --color-danger-light: #fee2e2;  /* red-100 */
  --color-warning: #ea580c;       /* orange-600 */
  --color-warning-light: #ffedd5; /* orange-100 */
  --color-info-light: #eff6ff;    /* blue-50 */
  --color-text: #111827;          /* gray-900 */
  --color-text-muted: #6b7280;    /* gray-500 */
  --color-border: #e5e7eb;        /* gray-200 */
  --color-bg: #f9fafb;            /* gray-50 */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Reusable component boxes */
.box-example {
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}

.box-todo {
  background: var(--color-success-light);
  border-left: 4px solid var(--color-success);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}

.box-prohibited {
  background: var(--color-danger-light);
  border-left: 4px solid var(--color-danger);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}

.box-info {
  background: var(--color-info-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}

/* Progress bar */
.progress-bar-fill {
  transition: width 0.3s ease;
  background: var(--color-primary);
}

/* Section visibility */
.section-content {
  display: none;
}
.section-content.active {
  display: block;
}

/* Golden rule cards */
.rule-card {
  background: white;
  border: 2px solid var(--color-primary);
  border-radius: 0.75rem;
  padding: 1.25rem;
  text-align: center;
}

/* Flip card — phishing exercise */
.flip-card {
  perspective: 1000px;
  min-height: 280px;
}
.flip-card-inner {
  position: relative;
  width: 100%;
  min-height: 280px;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}
.flip-card-inner.flipped {
  transform: rotateY(180deg);
}
.flip-card-front,
.flip-card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 0.75rem;
  border: 2px solid var(--color-border);
  background: white;
  padding: 1.25rem;
  overflow-y: auto;
}
.flip-card-back {
  transform: rotateY(180deg);
}

/* Email mockup */
.email-mockup {
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  overflow: hidden;
  font-size: 0.8125rem;
}
.email-mockup-header {
  background: #f3f4f6;
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid #e5e7eb;
}
.email-mockup-from { font-weight: 600; color: #111827; }
.email-mockup-subject { font-weight: 700; color: #111827; margin-top: 0.25rem; }
.email-mockup-body { padding: 0.75rem; color: #374151; line-height: 1.5; }
.email-mockup-btn {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.5rem 1.25rem;
  border-radius: 0.375rem;
  font-weight: 600;
  font-size: 0.8125rem;
  text-align: center;
}
.annotation {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 0.375rem;
  padding: 0.125rem 0.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  color: #dc2626;
  white-space: nowrap;
}
.exercise-score { font-size: 1.5rem; font-weight: 700; }

/* Responsive flip card */
@media (max-width: 640px) {
  .flip-card, .flip-card-inner { min-height: 320px; }
}

/* Print styles for audit evidence */
@media print {
  nav, .nav-buttons { display: none; }
  .section-content { display: block !important; }
}