/* ==========================================================================
   PORTAIL INSTITUTIONNEL - GPT ASS USEP VILLE DE GAP
   CHARTE GRAPHIQUE OFFICIELLE DUKE.EDU & RÈGLES D'ACCESSIBILITÉ WCAG AA
   ASSOCIATION LOI 1901 - UTILITÉ PUBLIQUE & JEUNESSE
   ========================================================================== */

:root {
  --duke-royal-blue: #001A57;
  --duke-navy-accent: #051C48;
  --duke-action-blue: #00539B;
  --duke-action-hover: #0073D1;
  --duke-canvas: #F3F4F6;
  --duke-white: #FFFFFF;
  --duke-text-main: #111827;
  --duke-text-muted: #6B7280;
  --duke-border: #E5E7EB;
  --duke-border-dark: #D1D5DB;
  --duke-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --duke-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --duke-shadow-lg: 0 10px 25px -5px rgba(0, 26, 87, 0.12);
  --font-serif: Georgia, 'Playfair Display', Garamond, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--duke-text-main);
  background-color: var(--duke-canvas);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--duke-canvas);
  color: var(--duke-text-main);
}

/* ==========================================================================
   PROGRESS BAR D'AVANCEMENT
   ========================================================================== */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 4px;
  background-color: var(--duke-action-hover);
  z-index: 10000;
  transition: width 0.1s ease-out;
}

/* ==========================================================================
   LEVEL 1 - UTILITY STRIP
   ========================================================================== */
.utility-strip {
  background-color: var(--duke-navy-accent);
  color: #E2E8F0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 7px 24px;
}

.utility-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.utility-identifiers {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.utility-identifiers span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.utility-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.utility-links a {
  color: #E2E8F0;
  text-decoration: none;
  transition: color 0.2s ease;
}

.utility-links a:hover, .utility-links a:focus {
  color: #FFFFFF;
  text-decoration: underline;
}

/* ==========================================================================
   LEVEL 2 - MAIN NAVIGATION
   ========================================================================== */
.main-header {
  background-color: var(--duke-royal-blue);
  color: var(--duke-white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 76px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--duke-white);
  min-height: 44px;
}

.brand-badge {
  background-color: var(--duke-action-blue);
  color: var(--duke-white);
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.05em;
  padding: 6px 12px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.brand-title {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.brand-subtitle {
  display: block;
  font-family: var(--font-sans);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #CBD5E1;
  font-weight: 500;
  margin-top: 2px;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 10px 14px;
  color: #F1F5F9;
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 4px;
  min-height: 44px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover, .nav-link:focus, .nav-item:hover > .nav-link {
  background-color: rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
}

.nav-arrow {
  font-size: 9px;
  opacity: 0.8;
  transition: transform 0.2s ease;
}

.nav-item:hover .nav-arrow {
  transform: rotate(180deg);
}

/* Dropdown submenus */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 250px;
  background-color: var(--duke-navy-accent);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 8px 0;
  list-style: none;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 1001;
}

.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item a {
  display: block;
  padding: 10px 18px;
  color: #E2E8F0;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: background-color 0.15s ease, color 0.15s ease, padding-left 0.15s ease;
}

.dropdown-item a:hover,
.dropdown-item a:focus {
  background-color: var(--duke-action-blue);
  color: #FFFFFF;
  padding-left: 22px;
}

.nav-cta-btn {
  background-color: var(--duke-action-blue);
  color: #FFFFFF !important;
  font-weight: 700 !important;
  padding: 10px 18px !important;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: background-color 0.2s ease, transform 0.1s ease !important;
}

.nav-cta-btn:hover, .nav-cta-btn:focus {
  background-color: var(--duke-action-hover) !important;
  transform: translateY(-1px);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  font-size: 20px;
  width: 44px;
  height: 44px;
  border-radius: 6px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.mobile-drawer {
  display: none;
  background-color: var(--duke-navy-accent);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 24px 24px;
}

.mobile-drawer.active {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-group-title {
  color: #94A3B8;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 10px 8px 4px;
}

.mobile-nav-item a {
  display: block;
  padding: 10px 12px;
  color: #F1F5F9;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  border-radius: 6px;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.mobile-nav-item a:hover,
.mobile-nav-item a:focus {
  background-color: var(--duke-action-blue);
  color: #FFFFFF;
}

/* ==========================================================================
   PAGE CONTAINER & TYPOGRAPHY
   ========================================================================== */
.main-content {
  flex: 1 0 auto;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-block {
  padding: 56px 0;
}

.section-block-alt {
  background-color: #EBF0F5;
  padding: 56px 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--duke-royal-blue);
  line-height: 1.25;
  margin-bottom: 16px;
  font-weight: 700;
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  border-bottom: 2px solid var(--duke-border);
  padding-bottom: 12px;
  margin-top: 36px;
  margin-bottom: 20px;
}

h3 {
  font-size: 1.45rem;
  margin-top: 24px;
  margin-bottom: 12px;
}

h4 {
  font-size: 1.2rem;
  margin-top: 20px;
  margin-bottom: 10px;
}

p {
  margin-bottom: 18px;
  font-size: 1.05rem;
  line-height: 1.7;
  color: #1F2937;
}

ul, ol {
  margin-bottom: 22px;
  padding-left: 28px;
}

li {
  margin-bottom: 8px;
  line-height: 1.65;
  color: #1F2937;
}

strong {
  font-weight: 700;
  color: #111827;
}

/* Category Tag Pill */
.category-pill {
  display: inline-block;
  background-color: var(--duke-action-blue);
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: 9999px;
  margin-bottom: 12px;
  white-space: nowrap;
}

/* ==========================================================================
   HERO SHOWCASE BANNER
   ========================================================================== */
.hero-showcase {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--duke-navy-accent);
}

.hero-image-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.72;
}

.hero-container {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 48px 24px;
}

.hero-overlay-card {
  max-width: 680px;
  background-color: rgba(5, 28, 72, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-left: 5px solid var(--duke-action-blue);
  padding: 40px;
  border-radius: 8px;
  color: #FFFFFF;
  box-shadow: var(--duke-shadow-lg);
  backdrop-filter: blur(4px);
}

.hero-overlay-card h1 {
  color: #FFFFFF;
  font-size: 2.45rem;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero-summary-text {
  font-size: 1.15rem;
  line-height: 1.6;
  color: #E2E8F0;
  margin-bottom: 24px;
}

.hero-cta-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-duke-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--duke-action-blue);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.03em;
  padding: 12px 24px;
  border-radius: 4px;
  text-decoration: none;
  min-height: 44px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.btn-duke-primary:hover, .btn-duke-primary:focus {
  background-color: var(--duke-action-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 83, 155, 0.35);
}

.btn-duke-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: #FFFFFF;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.03em;
  padding: 12px 24px;
  border-radius: 4px;
  text-decoration: none;
  min-height: 44px;
  border: 2px solid rgba(255, 255, 255, 0.8);
  transition: all 0.2s ease;
}

.btn-duke-secondary:hover, .btn-duke-secondary:focus {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: #FFFFFF;
  transform: translateY(-2px);
}

/* ==========================================================================
   MISSION CALLOUT BLOCK (120+ WORDS)
   ========================================================================== */
.mission-callout-wrapper {
  margin: 40px 0;
}

.mission-callout {
  background-color: var(--duke-white);
  border: 1px solid var(--duke-border);
  border-left: 5px solid var(--duke-action-blue);
  padding: 36px 40px;
  border-radius: 8px;
  box-shadow: var(--duke-shadow-md);
}

.mission-callout-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.mission-callout h3 {
  margin: 0;
  font-size: 1.65rem;
  color: var(--duke-royal-blue);
}

.mission-callout p {
  font-size: 1.12rem;
  line-height: 1.8;
  color: #111827;
  margin-bottom: 0;
}

/* ==========================================================================
   ASYMMETRIC DUKE SPLIT GRID
   ========================================================================== */
.duke-split-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 32px;
  align-items: start;
  margin: 36px 0;
}

.duke-card {
  background-color: var(--duke-white);
  border: 1px solid var(--duke-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--duke-shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.duke-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--duke-shadow-md);
}

.duke-card-img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #E2E8F0;
  overflow: hidden;
}

.duke-card-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.duke-card-body {
  padding: 28px;
}

.duke-card-body h3 {
  margin-top: 0;
  font-size: 1.4rem;
  line-height: 1.3;
}

.duke-card-body h4 {
  margin-top: 0;
  font-size: 1.2rem;
  line-height: 1.3;
}

.stacked-editorial-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.stacked-card {
  background-color: var(--duke-white);
  border: 1px solid var(--duke-border);
  border-radius: 8px;
  padding: 22px;
  box-shadow: var(--duke-shadow-sm);
}

.stacked-card h4 {
  margin-top: 0;
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.stacked-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

/* ==========================================================================
   4 ACTIVITY PREVIEW CARDS GRID (INDEX)
   ========================================================================== */
.activity-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 36px 0;
}

.activity-card {
  background-color: var(--duke-white);
  border: 1px solid var(--duke-border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--duke-shadow-sm);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.activity-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--duke-shadow-md);
}

.activity-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.activity-card-body h3 {
  font-size: 1.22rem;
  margin-top: 0;
  margin-bottom: 12px;
  min-height: 2.6em;
}

.activity-summary-100 {
  font-size: 0.95rem;
  line-height: 1.65;
  color: #374151;
  margin-bottom: 20px;
  flex-grow: 1;
}

.btn-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--duke-action-blue);
  font-weight: 700;
  font-size: 13.5px;
  text-decoration: none;
  margin-top: auto;
  min-height: 44px;
  transition: color 0.2s ease, gap 0.2s ease;
}

.btn-card-link:hover, .btn-card-link:focus {
  color: var(--duke-action-hover);
  gap: 10px;
  text-decoration: underline;
}

/* ==========================================================================
   LARGE SERIF BLOCKQUOTE SECTION
   ========================================================================== */
.duke-quote-section {
  background-color: var(--duke-canvas);
  border-top: 1px solid var(--duke-border);
  border-bottom: 1px solid var(--duke-border);
  padding: 64px 24px;
  text-align: center;
  margin: 48px 0;
}

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

.duke-quote-text {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-style: italic;
  line-height: 1.45;
  color: var(--duke-royal-blue);
  margin-bottom: 18px;
}

.duke-quote-author {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--duke-action-blue);
}

/* ==========================================================================
   3-COLUMN HORIZONTAL CONTENT CARDS
   ========================================================================== */
.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 36px 0;
}

/* ==========================================================================
   STATISTICAL INDICATOR PANEL
   ========================================================================== */
.stats-panel {
  background-color: var(--duke-navy-accent);
  color: #FFFFFF;
  border-radius: 10px;
  padding: 48px 36px;
  margin: 48px 0;
  box-shadow: var(--duke-shadow-lg);
}

.stats-panel-title {
  color: #FFFFFF;
  text-align: center;
  font-size: 1.85rem;
  margin-bottom: 10px;
}

.stats-panel-subtitle {
  text-align: center;
  color: #CBD5E1;
  max-width: 720px;
  margin: 0 auto 36px;
  font-size: 1.05rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 20px 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.04);
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: #60A5FA;
  line-height: 1.1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.stat-desc {
  font-size: 0.85rem;
  color: #CBD5E1;
  line-height: 1.4;
}

/* ==========================================================================
   TESTIMONIAL PROFILE FRAME
   ========================================================================== */
.testimonial-section {
  background-color: var(--duke-royal-blue);
  color: #FFFFFF;
  border-radius: 10px;
  padding: 48px 40px;
  margin: 48px 0;
  box-shadow: var(--duke-shadow-md);
}

.testimonial-inner {
  display: flex;
  align-items: center;
  gap: 36px;
  max-width: 960px;
  margin: 0 auto;
}

.testimonial-avatar {
  flex-shrink: 0;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--duke-action-blue);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

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

.testimonial-content {
  flex-grow: 1;
}

.testimonial-quote {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-style: italic;
  line-height: 1.6;
  color: #F8FAFC;
  margin-bottom: 16px;
}

.testimonial-author {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  color: #93C5FD;
}

.testimonial-role {
  font-size: 13px;
  color: #CBD5E1;
}

/* ==========================================================================
   CONTENT PAGE LAYOUT & ARTICLE BLOCKS
   ========================================================================== */
.article-container {
  background-color: var(--duke-white);
  border: 1px solid var(--duke-border);
  border-radius: 8px;
  padding: 48px;
  margin: 36px 0 56px;
  box-shadow: var(--duke-shadow-sm);
}

.article-header {
  border-bottom: 2px solid var(--duke-border);
  padding-bottom: 24px;
  margin-bottom: 32px;
}

.article-header h1 {
  margin-bottom: 12px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--duke-text-muted);
  font-size: 13px;
  flex-wrap: wrap;
}

.article-lead {
  font-size: 1.22rem;
  line-height: 1.75;
  color: #1F2937;
  font-weight: 500;
  margin-bottom: 28px;
  border-left: 4px solid var(--duke-action-blue);
  padding-left: 20px;
}

.content-image-inline {
  width: 100%;
  margin: 32px 0;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--duke-border);
  box-shadow: var(--duke-shadow-sm);
}

.content-image-inline img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

/* Tables */
.duke-table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.95rem;
  background-color: var(--duke-white);
  border: 1px solid var(--duke-border);
}

.duke-table th {
  background-color: var(--duke-royal-blue);
  color: #FFFFFF;
  text-align: left;
  padding: 14px 18px;
  font-weight: 700;
  font-size: 14px;
}

.duke-table td {
  padding: 12px 18px;
  border-bottom: 1px solid var(--duke-border);
  color: #374151;
}

.duke-table tr:nth-child(even) {
  background-color: #F9FAFB;
}

/* Forms */
.duke-form-group {
  margin-bottom: 20px;
}

.duke-label {
  display: block;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--duke-text-main);
}

.duke-input, .duke-select, .duke-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--duke-border-dark);
  border-radius: 4px;
  font-size: 15px;
  font-family: inherit;
  color: var(--duke-text-main);
  background-color: #FFFFFF;
  min-height: 44px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.duke-input:focus, .duke-select:focus, .duke-textarea:focus {
  outline: none;
  border-color: var(--duke-action-blue);
  box-shadow: 0 0 0 3px rgba(0, 83, 155, 0.15);
}

.duke-textarea {
  min-height: 140px;
  resize: vertical;
}

/* Funding Banner Callout */
.funding-callout {
  background-color: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-left: 5px solid var(--duke-action-blue);
  padding: 24px 28px;
  border-radius: 6px;
  margin: 28px 0;
}

.funding-callout h4 {
  color: var(--duke-navy-accent);
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1.15rem;
}

.funding-callout p {
  color: #1E3A8A;
  margin-bottom: 0;
  font-size: 0.98rem;
}

/* ==========================================================================
   FOOTER (4-COLUMN DUKE DARK)
   ========================================================================== */
.main-footer {
  background-color: var(--duke-royal-blue);
  color: #FFFFFF;
  padding: 56px 0 24px;
  border-top: 4px solid var(--duke-action-blue);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1.1fr 1fr 1.6fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #FFFFFF;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-col p {
  color: #CBD5E1;
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.footer-col strong {
  color: #FFFFFF;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #CBD5E1;
  text-decoration: none;
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  transition: color 0.15s ease, transform 0.15s ease;
}

.footer-links a:hover, .footer-links a:focus {
  color: #FFFFFF;
  text-decoration: underline;
  transform: translateX(2px);
}

.footer-legal-box {
  background-color: rgba(5, 28, 72, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 16px 18px;
  font-size: 0.85rem;
  line-height: 1.6;
  color: #E2E8F0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12px;
  color: #94A3B8;
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-bottom-links a {
  color: #CBD5E1;
  text-decoration: none;
}

.footer-bottom-links a:hover, .footer-bottom-links a:focus {
  color: #FFFFFF;
  text-decoration: underline;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES (STRICT GUIDELINES)
   ========================================================================== */
@media (max-width: 992px) {
  .nav-desktop {
    display: none;
  }
  
  .mobile-toggle {
    display: inline-flex;
  }
  
  .hero-showcase {
    min-height: 460px;
  }
  
  .duke-split-grid {
    grid-template-columns: 1fr;
  }
  
  .activity-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cards-grid-3 {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  
  .testimonial-inner {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .utility-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  
  .utility-links {
    width: 100%;
    justify-content: space-between;
  }
  
  .hero-showcase {
    min-height: auto;
    padding: 24px 0;
  }
  
  .hero-overlay-card {
    padding: 24px 20px;
  }
  
  .hero-overlay-card h1 {
    font-size: 1.9rem;
  }
  
  .hero-summary-text {
    font-size: 1rem;
  }
  
  .activity-grid-4 {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .article-container {
    padding: 24px 18px;
  }
  
  .duke-quote-text {
    font-size: 1.35rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}