/* ================================================================
   BLACKTHORN UNIVERSITY — HOME / MAIN SITE
   ================================================================ */

/* ── Nav ── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 15, 20, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-8);
  height: 60px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}
.nav-brand:hover { text-decoration: none; }

.nav-crest {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(201,168,76,0.3));
}

.nav-wordmark {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--text-md);
  letter-spacing: 0.06em;
  color: var(--color-gold);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav-links a {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color 0.15s ease;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--color-gold-light);
  text-decoration: none;
}

/* ── Hero ── */
.home-hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-16) var(--space-8);
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(201,168,76,0.07) 0%, transparent 65%),
    radial-gradient(ellipse 100% 80% at 50% 100%, rgba(0,0,0,0.7) 0%, transparent 60%);
}

.hero-crest {
  width: clamp(100px, 14vw, 180px);
  height: auto;
  filter: drop-shadow(0 6px 40px rgba(0,0,0,0.9)) drop-shadow(0 0 20px rgba(201,168,76,0.12));
  margin-bottom: var(--space-8);
  position: relative;
  z-index: 1;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  letter-spacing: 0.1em;
  color: var(--color-text-heading);
  line-height: 1.1;
  position: relative;
  z-index: 1;
}

.hero-motto {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--color-gold-light);
  letter-spacing: 0.06em;
  margin-top: var(--space-3);
  position: relative;
  z-index: 1;
}

.hero-tagline {
  font-family: var(--font-sans);
  font-size: var(--text-md);
  color: var(--color-silver-mid);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: var(--space-5);
  position: relative;
  z-index: 1;
}

.hero-rule {
  width: 80px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold-dim), transparent);
  margin: var(--space-8) auto;
  border: none;
  position: relative;
  z-index: 1;
}

.hero-description {
  max-width: 580px;
  font-size: var(--text-md);
  color: var(--color-text-primary);
  line-height: 1.75;
  position: relative;
  z-index: 1;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-10);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0a0a0a;
  background: var(--color-gold);
  border: none;
  border-radius: 100px;
  padding: var(--space-4) var(--space-10);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, box-shadow 0.2s ease, letter-spacing 0.2s ease;
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 20px rgba(201,168,76,0.25);
}
.hero-cta:hover {
  background: var(--color-gold-light);
  color: #0a0a0a;
  box-shadow: 0 6px 30px rgba(201,168,76,0.4);
  letter-spacing: 0.12em;
  text-decoration: none;
}

/* ── Shared section layout ── */
.home-section {
  padding: var(--space-16) var(--space-8);
  max-width: 1100px;
  margin: 0 auto;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold-dim);
  margin-bottom: var(--space-4);
}

.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  color: var(--color-text-heading);
  margin-bottom: var(--space-6);
}

.section-divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  border: none;
  margin: 0;
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

.about-body {
  font-size: var(--text-md);
  color: var(--color-text-primary);
  line-height: 1.8;
}

.about-body p + p {
  margin-top: var(--space-5);
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.stat-item {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-gold-dim);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
}

.stat-value {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  color: var(--color-gold);
  font-weight: 700;
  line-height: 1;
}

.stat-label {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
  letter-spacing: 0.04em;
}

/* ── Values strip ── */
.values-strip {
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-12) var(--space-8);
}

.values-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-10);
}

.value-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.value-icon {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-gold);
  font-family: var(--font-serif);
}

.value-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  color: var(--color-text-heading);
  font-weight: 700;
}

.value-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── Schools ── */
.schools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.school-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.school-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold-dim), var(--color-gold), var(--color-gold-dim));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.school-card:hover {
  border-color: var(--color-border-gold);
  box-shadow: var(--shadow-gold);
}
.school-card:hover::before { opacity: 1; }

.school-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
  background: rgba(201,168,76,0.08);
  border: 1px solid var(--color-gold-dim);
  border-radius: 100px;
  padding: 2px 10px;
  margin-bottom: var(--space-5);
}

.school-name {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  color: var(--color-text-heading);
  margin-bottom: var(--space-3);
}

.school-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.school-courses-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.school-course-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.school-course-list li {
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.school-course-list li::before {
  content: '›';
  color: var(--color-gold-dim);
}

/* ── Featured Course ── */
.featured-course {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-12);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-10);
  align-items: center;
  margin-top: var(--space-8);
  position: relative;
  overflow: hidden;
}

.featured-course::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 90% 50%, rgba(201,168,76,0.04), transparent);
  pointer-events: none;
}

.featured-course-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.featured-course-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--color-text-heading);
  margin-bottom: var(--space-4);
}

.featured-course-desc {
  font-size: var(--text-md);
  color: var(--color-text-primary);
  line-height: 1.75;
  max-width: 560px;
  margin-bottom: var(--space-8);
}

.course-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}

.course-pill {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 3px 10px;
}

.featured-course-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--color-gold-light);
  border: 1px solid var(--color-border-gold);
  border-radius: 100px;
  padding: var(--space-3) var(--space-8);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
}
.featured-course-cta:hover {
  background: var(--color-gold);
  color: #0a0a0a;
  box-shadow: 0 0 20px rgba(201,168,76,0.3);
  text-decoration: none;
}

.featured-course-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 200px;
}

.aside-stat {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  text-align: center;
}

.aside-stat-value {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  color: var(--color-gold);
  font-weight: 700;
}

.aside-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  margin-top: 2px;
}

/* ── Faculty ── */
.faculty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.faculty-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
}

.faculty-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  color: var(--color-gold);
  flex-shrink: 0;
  overflow: hidden;
}

.faculty-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.faculty-name {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  color: var(--color-text-heading);
  margin-bottom: 2px;
}

.faculty-title {
  font-size: var(--text-sm);
  color: var(--color-gold-dim);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-3);
}

.faculty-bio {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ── Footer ── */
.home-footer {
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-12) var(--space-8);
}

.home-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-10);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-crest {
  width: 44px;
  height: auto;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5));
}

.footer-wordmark {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  color: var(--color-gold);
  font-weight: 700;
}

.footer-motto {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-col-heading {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color 0.15s ease;
}
.footer-links a:hover {
  color: var(--color-gold-light);
  text-decoration: none;
}

.footer-bottom {
  max-width: 1100px;
  margin: var(--space-10) auto 0;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-silver-dim);
  letter-spacing: 0.06em;
}

/* ── Responsive ── */
@media (max-width: 820px) {
  .about-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .featured-course { grid-template-columns: 1fr; }
  .featured-course-aside { flex-direction: row; flex-wrap: wrap; min-width: auto; }
  .home-footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 540px) {
  .site-nav { padding: 0 var(--space-4); }
  .nav-links { gap: var(--space-4); }
  .home-hero { min-height: 75vh; padding: var(--space-12) var(--space-5); }
  .home-section { padding: var(--space-12) var(--space-5); }
  .values-strip { padding: var(--space-10) var(--space-5); }
  .featured-course { padding: var(--space-8); }
  .home-footer { padding: var(--space-10) var(--space-5); }
  .home-footer-inner { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer-bottom { flex-direction: column; gap: var(--space-3); text-align: center; }
}