/* === BASE VARIABLES === */
:root {
  --bg: #FAFAF5;
  --bg-alt: #F0EDE6;
  --fg: #1A1A1A;
  --fg-muted: #5A5A5A;
  --accent: #C9702A;
  --accent-dark: #A85E1F;
  --primary: #1B4332;
  --primary-light: #2D6A4F;
  --border: #E0DDD4;
  --white: #FFFFFF;
}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === NAV === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--primary);
  padding: 0 48px;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
}

.nav-logo {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--white);
  letter-spacing: 0.02em;
}

.nav-tagline {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-enroll-btn {
  display: inline-flex;
  align-items: center;
  padding: 9px 20px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  background: var(--accent);
  color: var(--white);
  transition: background 0.2s ease, transform 0.2s ease;
}

.nav-enroll-btn:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

/* === SECTION LABELS === */
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
  max-width: 540px;
  line-height: 1.65;
  margin-bottom: 56px;
}

/* === HERO === */
.hero {
  background: var(--primary);
  color: var(--white);
  padding: 80px 48px 96px;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 28px;
}

.hero-headline {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 800;
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 1.05;
  color: var(--white);
  letter-spacing: -0.02em;
}

.hero-right {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.hero-lede {
  font-size: 1.15rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.9);
  font-weight: 400;
}

.hero-sub {
  font-size: 0.95rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.6);
  font-style: italic;
  font-family: 'Playfair Display', Georgia, serif;
}

.hero-stats {
  display: flex;
  gap: 32px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.15);
  margin-top: 8px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
}

.stat-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.45);
}

/* === MISSION === */
.mission {
  background: var(--bg);
  padding: 96px 48px;
}

.mission-inner {
  max-width: 860px;
  margin: 0 auto;
}

.mission-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.mission-statement {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--primary);
  line-height: 1.15;
  margin-bottom: 32px;
  letter-spacing: -0.01em;
}

.mission-body {
  font-size: 1.1rem;
  line-height: 1.85;
  color: var(--fg-muted);
}

/* === F.L.A.R.E. === */
.flare-section {
  background: var(--bg-alt);
  padding: 96px 48px;
}

.flare-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.flare-pentagon {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.flare-pillar {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.flare-pillar:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(27,67,50,0.12);
}

.pillar-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pillar-icon svg {
  width: 48px;
  height: 48px;
}

.pillar-name {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary);
  line-height: 1.2;
}

.pillar-desc {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--fg-muted);
}

/* === UNITS === */
.units-section {
  background: var(--bg);
  padding: 96px 48px;
}

.units-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.units-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.unit-card {
  border-radius: 20px;
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  border: 1.5px solid transparent;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.unit-card:hover {
  transform: translateY(-4px);
}

.unit-education {
  background: linear-gradient(135deg, #1B4332 0%, #2D6A4F 100%);
  color: var(--white);
}

.unit-education:hover {
  box-shadow: 0 16px 48px rgba(27,67,50,0.3);
}

.unit-research {
  background: var(--white);
  border-color: var(--border);
}

.unit-research:hover {
  box-shadow: 0 16px 48px rgba(27,67,50,0.1);
}

.unit-outreach {
  background: var(--bg-alt);
  border-color: var(--border);
}

.unit-outreach:hover {
  box-shadow: 0 16px 48px rgba(27,67,50,0.08);
}

.unit-number {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 800;
  font-size: 2.5rem;
  line-height: 1;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.unit-education .unit-number {
  color: rgba(255,255,255,0.3);
}

.unit-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1.2;
}

.unit-education .unit-title {
  color: var(--white);
}

.unit-card .unit-title {
  color: var(--primary);
}

.unit-desc {
  font-size: 0.95rem;
  line-height: 1.7;
  flex: 1;
}

.unit-education .unit-desc {
  color: rgba(255,255,255,0.8);
}

.unit-research .unit-desc,
.unit-outreach .unit-desc {
  color: var(--fg-muted);
}

.unit-tags {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.6;
  padding-top: 16px;
  border-top: 1px solid;
}

.unit-education .unit-tags {
  color: rgba(255,255,255,0.5);
  border-color: rgba(255,255,255,0.15);
}

.unit-research .unit-tags,
.unit-outreach .unit-tags {
  color: var(--fg-muted);
  border-color: var(--border);
}

/* === CLOSING === */
.closing {
  background: var(--primary);
  color: var(--white);
  padding: 96px 48px;
  text-align: center;
}

.closing-inner {
  max-width: 720px;
  margin: 0 auto;
}

.closing-headline {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 800;
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--white);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.closing-body {
  font-size: 1.1rem;
  line-height: 1.75;
  color: rgba(255,255,255,0.75);
  margin-bottom: 16px;
}

.closing-body--emphasis {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 48px;
}

.closing-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 8px;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: rgba(255,255,255,0.85);
  border: 1.5px solid rgba(255,255,255,0.35);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
}

/* === FOOTER === */
.footer {
  background: #0E2418;
  color: rgba(255,255,255,0.5);
  padding: 56px 48px 40px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand {
  margin-bottom: 32px;
}

.footer-name {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 6px;
}

.footer-full-name {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.3);
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.footer-links a {
  color: rgba(255,255,255,0.45);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: rgba(255,255,255,0.8);
}

.footer-copy {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.25);
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .flare-pentagon {
    grid-template-columns: repeat(3, 1fr);
  }

  .flare-pillar:nth-child(4),
  .flare-pillar:nth-child(5) {
    grid-column: span 1;
  }

  .units-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .units-grid .unit-card:last-child {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 64px 32px 80px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-headline {
    font-size: clamp(2.5rem, 8vw, 4rem);
  }

  .mission,
  .flare-section,
  .units-section,
  .closing {
    padding: 64px 32px;
  }

  .flare-pentagon {
    grid-template-columns: 1fr;
  }

  .units-grid {
    grid-template-columns: 1fr;
  }

  .units-grid .unit-card:last-child {
    grid-column: span 1;
  }

  .footer {
    padding: 48px 32px 32px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 48px 24px 64px;
  }

  .mission,
  .flare-section,
  .units-section,
  .closing {
    padding: 48px 24px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .closing-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
  }
}