/* CIBA Bible Academy — Sacred Scholasticism Design System */

:root {
  --primary: #06104c;
  --primary-container: #1e2761;
  --on-primary: #ffffff;
  --on-primary-container: #8790d0;
  --secondary: #755b00;
  --secondary-container: #fed977;
  --on-secondary: #ffffff;
  --on-secondary-container: #785d00;
  --tertiary: #0d182b;
  --tertiary-container: #222d40;
  --on-tertiary: #ffffff;
  --background: #fbf8fe;
  --surface: #fbf8fe;
  --surface-dim: #dbd9df;
  --surface-bright: #fbf8fe;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f5f2f8;
  --surface-container: #f0edf3;
  --surface-container-high: #eae7ed;
  --surface-container-highest: #e4e1e7;
  --on-surface: #1b1b1f;
  --on-surface-variant: #464650;
  --outline: #767681;
  --outline-variant: #c6c5d1;
  --inverse-surface: #303034;
  --inverse-on-surface: #f2f0f5;
  --secondary-fixed: #ffe08f;
  --secondary-fixed-dim: #e6c364;
  --on-secondary-fixed: #241a00;
  --inverse-primary: #bbc3ff;
  --error: #ba1a1a;
}

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

body {
  font-family: 'Open Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--on-surface);
  background: var(--background);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Typography ── */
h1, h2, h3, h4, .font-serif { font-family: 'Playfair Display', serif; }

.display-lg { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
.headline-lg { font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 600; line-height: 1.3; }
.headline-md { font-size: clamp(1.2rem, 1.8vw, 1.5rem); font-weight: 600; line-height: 1.4; }
.body-lg { font-size: 1.125rem; line-height: 1.6; }
.body-md { font-size: 1rem; line-height: 1.6; }
.label-sm { font-size: 0.8125rem; font-weight: 600; line-height: 1.2; letter-spacing: 0.05em; }
.telugu { font-size: 0.95em; line-height: 1.8; }

/* ── Layout ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 80px 0; }
.section-pad-sm { padding: 48px 0; }

/* ── Navigation ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251,248,254,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--outline-variant);
  box-shadow: 0 1px 3px rgba(6,16,76,0.06);
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
}
.nav-brand img { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--outline-variant); object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-family: 'Open Sans', sans-serif;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  color: var(--on-surface-variant);
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--secondary); }
.nav-links a.active { border-bottom: 2px solid var(--secondary); padding-bottom: 2px; }
.nav-lang { font-size: 0.8125rem; color: var(--on-surface-variant); cursor: pointer; }
.nav-hamburger { display: none; background: none; border: none; color: var(--primary); cursor: pointer; font-size: 1.5rem; }

/* ── Mobile Nav ── */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--surface-container-lowest);
  border-bottom: 1px solid var(--outline-variant);
  padding: 8px 0;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 12px 24px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  border-left: 3px solid transparent;
  transition: all 0.2s;
}
.mobile-menu a:hover, .mobile-menu a.active {
  color: var(--secondary);
  border-left-color: var(--secondary);
  background: var(--surface-container-low);
}

/* ── Buttons ── */
.btn-primary {
  display: inline-block;
  padding: 12px 32px;
  background: var(--primary);
  color: var(--on-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  text-align: center;
}
.btn-primary:hover { background: var(--primary-container); transform: translateY(-1px); }

.btn-outline {
  display: inline-block;
  padding: 12px 32px;
  background: transparent;
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: 4px;
  border: 1px solid var(--secondary);
  cursor: pointer;
  transition: background 0.2s;
  text-align: center;
}
.btn-outline:hover { background: rgba(117,91,0,0.06); }

/* ── Cards ── */
.card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 15px 30px rgba(6,16,76,0.04);
}
.card-gold-top { border-top: 3px solid var(--secondary); }
.card-gold-left { border-left: 4px solid var(--secondary); }

/* ── Divider ── */
.divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 32px 0;
}
.divider hr { flex: 1; border: none; border-top: 1px solid var(--outline-variant); }
.divider span.material-symbols-outlined { color: var(--secondary); font-size: 1.2rem; }

/* ── Footer ── */
footer {
  background: var(--surface-container-highest);
  padding: 60px 24px 40px;
  text-align: center;
  margin-top: auto;
}
footer .footer-brand {
  font-family: 'Playfair Display', serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
}
footer .footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
}
footer .footer-links a {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s;
}
footer .footer-links a:hover { opacity: 1; color: var(--primary); }
footer .footer-divider {
  width: 320px;
  max-width: 100%;
  height: 1px;
  background: var(--outline-variant);
  margin: 0 auto 24px;
  opacity: 0.5;
}
footer .footer-copy {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  max-width: 560px;
  margin: 0 auto;
}

/* ── Page Hero ── */
.page-hero {
  background: var(--surface-container-low);
  padding: 80px 24px;
  text-align: center;
  border-bottom: 1px solid var(--outline-variant);
}
.page-hero h1 { color: var(--primary); margin-bottom: 16px; }
.page-hero p { color: var(--on-surface-variant); max-width: 600px; margin: 0 auto; }

/* ── Scripture Callout ── */
.scripture-callout {
  border-left: 4px solid var(--secondary);
  padding: 16px 24px;
  background: rgba(251,248,254,0.5);
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
}
.scripture-callout p { font-family: 'Playfair Display', serif; font-style: italic; font-size: 1.2rem; color: var(--on-surface); }
.scripture-callout .attribution { font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--secondary); margin-top: 8px; }

/* ── Material Icons ── */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
  display: inline-flex;
  align-items: center;
}
.icon-fill { font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24; }
.icon-sm { font-size: 1.1rem; }
.icon-md { font-size: 1.5rem; }
.icon-lg { font-size: 2rem; }
.icon-xl { font-size: 2.5rem; }

/* ── Utility ── */
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-muted { color: var(--on-surface-variant); }
.text-center { text-align: center; }
.text-italic { font-style: italic; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mb-12 { margin-bottom: 48px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }
.w-full { width: 100%; }
.rounded-full { border-radius: 9999px; }
.rounded-lg { border-radius: 8px; }
.rounded-xl { border-radius: 12px; }
.bg-primary { background: var(--primary); }
.bg-secondary { background: var(--secondary); }

/* ── Grid Utilities ── */
.grid { display: grid; }
.grid-3 { grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-12-8-4 { grid-template-columns: 8fr 4fr; gap: 32px; }
.grid-12-4-8 { grid-template-columns: 4fr 8fr; gap: 32px; }

/* ── Fee Table ── */
.fee-table { width: 100%; border-collapse: collapse; }
.fee-table th {
  background: var(--primary);
  color: var(--on-primary);
  padding: 12px 20px;
  text-align: left;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.fee-table td {
  padding: 12px 20px;
  border-bottom: 1px solid var(--outline-variant);
  font-size: 0.95rem;
  color: var(--on-surface);
}
.fee-table tr:hover td { background: var(--surface-container-low); }
.fee-table tr:last-child td { border-bottom: none; }

/* ── Icon Circle ── */
.icon-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  flex-shrink: 0;
  transition: background 0.2s;
}
.icon-circle:hover, .card:hover .icon-circle { background: rgba(117,91,0,0.1); }

/* ── Subject List ── */
.subject-list { list-style: none; }
.subject-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--outline-variant);
  font-size: 0.95rem;
  color: var(--on-surface);
}
.subject-list li:last-child { border-bottom: none; }
.subject-list .material-symbols-outlined { color: var(--secondary); font-size: 1rem; margin-top: 2px; }

/* ── Faculty Cards ── */
.faculty-card {
  display: flex;
  gap: 24px;
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 4px 20px rgba(6,16,76,0.04);
  transition: box-shadow 0.2s;
}
.faculty-card:hover { box-shadow: 0 8px 32px rgba(6,16,76,0.1); }
.faculty-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--surface-container-high);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
  border: 2px solid var(--outline-variant);
}
.faculty-info { flex: 1; }
.faculty-role {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--secondary);
  margin-bottom: 4px;
}
.faculty-name { font-family: 'Playfair Display', serif; font-size: 1.3rem; color: var(--primary); margin-bottom: 4px; }
.faculty-quals { font-size: 0.875rem; color: var(--on-surface-variant); font-style: italic; }

/* ── Contact Form ── */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--outline-variant);
  border-radius: 6px;
  background: var(--surface-container-lowest);
  font-family: 'Open Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--on-surface);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(117,91,0,0.1);
}
.form-group textarea { resize: vertical; min-height: 140px; }

/* ── Bilingual Block ── */
.bilingual-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--outline-variant);
  border-radius: 12px;
  overflow: hidden;
}
.bilingual-pane { padding: 32px; }
.bilingual-pane:first-child { background: var(--surface-container-lowest); }
.bilingual-pane:last-child { background: var(--surface-container-low); }
.bilingual-lang {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--outline);
  margin-bottom: 16px;
}
.bilingual-divider { width: 1px; background: var(--outline-variant); }

/* ── Course Level Badge ── */
.level-badge {
  display: inline-block;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 8px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-lang { display: none; }
  .nav-hamburger { display: block; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-12-8-4 { grid-template-columns: 1fr; }
  .grid-12-4-8 { grid-template-columns: 1fr; }
  .bilingual-block { grid-template-columns: 1fr; }
  .bilingual-divider { width: 100%; height: 1px; }
  .faculty-card { flex-direction: column; }
  .section-pad { padding: 48px 0; }
  .display-lg { font-size: 1.8rem; }
}

@media (max-width: 640px) {
  .nav-brand span { display: none; }
}

/* ── Page-specific hero background variants ── */
.hero-home {
  background: var(--surface);
  position: relative;
  overflow: hidden;
}
.hero-home::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(30,39,97,0.04) 0%, transparent 70%),
              radial-gradient(ellipse at 30% 80%, rgba(117,91,0,0.03) 0%, transparent 60%);
  pointer-events: none;
}

/* ── Animations ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.5s ease both; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* ── Progress Track ── */
.progress-track { background: var(--outline-variant); border-radius: 4px; height: 4px; }
.progress-fill { height: 4px; border-radius: 4px; background: var(--secondary); }