/* ==============================================================================
   AI ACADEMY ONUS — Official Stylesheet
   Domain: aiacademyonus.college
   Pure CSS3 — Academic, Modern, Premium Institution Aesthetic
   ============================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@600;700;800&family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  /* High Density Academic Color System */
  --color-navy-dark: #001633;
  --color-navy-primary: #002147;
  --color-navy-card: #002d61;
  --color-blue-accent: #002147;
  --color-blue-bright: #0284C7;
  --color-cyan-accent: #38BDF8;
  --color-teal-accent: #0EA5E9;
  --color-gold-accent: #38BDF8;
  --color-gold-light: #7DD3FC;

  /* Neutral Surface & High Density Slate Palette */
  --color-bg-light: #F8FAFC;
  --color-bg-white: #FFFFFF;
  --color-bg-subtle: #F1F5F9;
  --color-border: #E2E8F0;
  --color-border-hover: #CBD5E1;
  --color-text-main: #1E293B;
  --color-text-muted: #475569;
  --color-text-light: #64748B;
  --color-text-white: #FFFFFF;

  /* Typography */
  --font-serif: 'Cinzel', 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Compact High-Density Spacing & Layout */
  --container-max: 1200px;
  --header-height: 76px;
  --topbar-height: 36px;
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 9999px;

  /* High Density Shadows & Accent Borders */
  --shadow-sm: 0 1px 2px 0 rgba(0, 33, 71, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 33, 71, 0.08), 0 2px 4px -2px rgba(0, 33, 71, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 33, 71, 0.08), 0 4px 6px -4px rgba(0, 33, 71, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(0, 33, 71, 0.12), 0 8px 10px -6px rgba(0, 33, 71, 0.04);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-light);
  color: var(--color-text-main);
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-blue-bright);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-blue-accent);
}

ul, ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   LAYOUT UTILITIES
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding-top: 3.75rem;
  padding-bottom: 3.75rem;
}

.section-sm {
  padding-top: 2.25rem;
  padding-bottom: 2.25rem;
}

.section-dark {
  background-color: var(--color-navy-primary);
  color: var(--color-text-white);
}

.section-subtle {
  background-color: var(--color-bg-subtle);
}

.section-white {
  background-color: var(--color-bg-white);
}

/* --------------------------------------------------------------------------
   TYPOGRAPHY — HIGH DENSITY ACADEMIC
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--color-navy-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-text-white);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.85rem;
  margin-bottom: 0.85rem;
}

h3 {
  font-size: 1.3rem;
  margin-bottom: 0.65rem;
}

h4 {
  font-size: 1.05rem;
  margin-bottom: 0.45rem;
}

p {
  margin-bottom: 0.85rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.section-dark p {
  color: #CBD5E1;
}

.lead-text {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-text-muted);
  max-width: 44rem;
}

.section-dark .lead-text {
  color: #CBD5E1;
}

.section-header {
  text-align: center;
  max-width: 46rem;
  margin: 0 auto 2.75rem auto;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-cyan-accent);
  margin-bottom: 0.65rem;
  padding: 0.25rem 0.65rem;
  background-color: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-xs);
}

.section-dark .section-eyebrow {
  background-color: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.3);
  color: #38BDF8;
}

.text-left {
  text-align: left;
  margin-left: 0;
}

/* --------------------------------------------------------------------------
   BUTTONS — HIGH DENSITY PRECISION
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1;
  text-decoration: none;
  border-radius: var(--radius-xs);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-normal);
}

.btn-primary {
  background-color: #38BDF8;
  color: #002147;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: #FFFFFF;
  color: #002147;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: #002147;
  color: #38BDF8;
  border-color: #38BDF8;
}

.btn-secondary:hover {
  background-color: #38BDF8;
  color: #002147;
  transform: translateY(-1px);
}

.btn-gold {
  background-color: #38BDF8;
  color: #002147;
  box-shadow: var(--shadow-sm);
}

.btn-gold:hover {
  background-color: #FFFFFF;
  color: #002147;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-navy-primary);
  color: var(--color-navy-primary);
}

.btn-outline:hover {
  border-color: var(--color-navy-primary);
  background-color: var(--color-navy-primary);
  color: #FFFFFF;
}

.btn-outline-white {
  background-color: transparent;
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--color-text-white);
  backdrop-filter: blur(4px);
}

.btn-outline-white:hover {
  background-color: #FFFFFF;
  border-color: #FFFFFF;
  color: #002147;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.75rem;
}

.btn-lg {
  padding: 0.85rem 1.85rem;
  font-size: 0.875rem;
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

/* --------------------------------------------------------------------------
   TOP INSTITUTIONAL ANNOUNCEMENT BAR
   -------------------------------------------------------------------------- */
.top-bar {
  background-color: #001633;
  color: #94A3B8;
  font-size: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.top-bar-badge {
  background-color: rgba(56, 189, 248, 0.15);
  color: #38BDF8;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-xs);
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.top-bar-right a {
  color: #94A3B8;
  font-weight: 600;
}

.top-bar-right a:hover {
  color: #38BDF8;
}

/* --------------------------------------------------------------------------
   SITE HEADER & NAVIGATION — HIGH DENSITY OXFORD NAVY
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #002147;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 12px rgba(0, 33, 71, 0.25);
  transition: all var(--transition-normal);
  height: var(--header-height);
}

.site-header.scrolled {
  background-color: #001A38;
  box-shadow: 0 10px 18px -3px rgba(0, 0, 0, 0.35);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-brand {
  display: flex;
  align-items: center;
}

.brand-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  padding: 0.35rem 0;
  position: relative;
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: #FFFFFF;
}

.nav-link.active {
  color: #FFFFFF;
  font-weight: 700;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #38BDF8;
  border-radius: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xs);
  padding: 0.5rem;
  cursor: pointer;
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
   HERO SECTIONS — HIGH DENSITY
   -------------------------------------------------------------------------- */
.hero-home {
  position: relative;
  background: #001428;
  color: var(--color-text-white);
  padding-top: 3.75rem;
  padding-bottom: 4.25rem;
  overflow: hidden;
}

.hero-home::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, #002147 0%, rgba(0, 33, 71, 0.85) 55%, rgba(0, 33, 71, 0.3) 100%);
  pointer-events: none;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content h1 {
  font-size: 2.75rem;
  line-height: 1.15;
  color: var(--color-text-white);
  margin-bottom: 1.25rem;
}

.hero-content h1 span.accent {
  color: #38BDF8;
}

.hero-lead {
  font-size: 1.05rem;
  line-height: 1.65;
  color: #CBD5E1;
  margin-bottom: 1.75rem;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.75rem;
}

.hero-pill-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-xs);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #E2E8F0;
}

.hero-pill-item .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #38BDF8;
}

.hero-image-wrapper {
  position: relative;
}

.hero-image-frame {
  position: relative;
  border-radius: var(--radius-xs);
  overflow: hidden;
  box-shadow: 0 20px 35px -10px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-image-frame img {
  width: 100%;
  height: 390px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.hero-image-frame:hover img {
  transform: scale(1.03);
}

.hero-floating-card {
  position: absolute;
  bottom: -1rem;
  left: -1rem;
  background-color: #002147;
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-top: 3px solid #38BDF8;
  border-radius: var(--radius-xs);
  padding: 0.85rem 1.15rem;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  max-width: 270px;
}

.floating-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-xs);
  background-color: rgba(56, 189, 248, 0.15);
  color: #38BDF8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.floating-text h5 {
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.floating-text p {
  color: #94A3B8;
  font-size: 0.75rem;
  margin: 0;
  line-height: 1.3;
}

/* Page Header Hero (for About, Programs, Contact) */
.page-hero {
  background: linear-gradient(135deg, #001633 0%, #002147 60%, #003366 100%);
  color: var(--color-text-white);
  padding: 3.5rem 0 3.25rem 0;
  text-align: center;
  position: relative;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.page-hero h1 {
  color: var(--color-text-white);
  font-size: 2.35rem;
  margin-bottom: 0.75rem;
}

.page-hero .lead-text {
  margin-left: auto;
  margin-right: auto;
  color: #CBD5E1;
  font-size: 1rem;
}

.breadcrumbs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94A3B8;
  margin-top: 1.25rem;
}

.breadcrumbs a {
  color: #38BDF8;
}

.breadcrumbs span {
  color: #64748B;
}

/* --------------------------------------------------------------------------
   ACADEMIC PILLARS & STATS STRIP — HIGH DENSITY
   -------------------------------------------------------------------------- */
.academic-strip {
  background-color: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border);
  padding: 1.75rem 0;
}

.strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.strip-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.strip-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-xs);
  background-color: #F0F9FF;
  color: #0284C7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  border: 1px solid #BAE6FD;
}

.strip-item h4 {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-navy-primary);
  margin-bottom: 0.2rem;
}

.strip-item p {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.35;
}

/* --------------------------------------------------------------------------
   ACADEMIC CARDS & GRIDS — HIGH DENSITY BORDER ACCENTS
   -------------------------------------------------------------------------- */
.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.cards-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.program-card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-navy-primary);
  border-radius: var(--radius-xs);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.program-card:nth-child(2n) {
  border-top-color: #38BDF8;
}

.program-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-hover);
}

.program-card-media {
  position: relative;
  height: 190px;
  overflow: hidden;
  background-color: var(--color-navy-primary);
}

.program-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.program-card:hover .program-card-media img {
  transform: scale(1.04);
}

.program-badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  background-color: rgba(0, 33, 71, 0.9);
  backdrop-filter: blur(4px);
  color: #38BDF8;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(56, 189, 248, 0.4);
}

.program-card-body {
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.program-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--color-navy-primary);
}

.program-card-body p {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.program-card-footer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Feature & Benefit Cards */
.feature-card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-navy-primary);
  border-radius: var(--radius-xs);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.feature-card:nth-child(2n) {
  border-top-color: #38BDF8;
}

.feature-card:hover {
  border-color: #38BDF8;
  border-top-color: #38BDF8;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feature-icon-box {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-xs);
  background-color: #F0F9FF;
  color: #0284C7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
  border: 1px solid #BAE6FD;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--color-navy-primary);
}

.feature-card p {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-text-muted);
  margin: 0;
}

/* --------------------------------------------------------------------------
   CONTENT SPLIT SECTIONS (Image + Text)
   -------------------------------------------------------------------------- */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.split-grid.reversed {
  direction: rtl;
}

.split-grid.reversed > * {
  direction: ltr;
}

.split-image-box {
  position: relative;
  border-radius: var(--radius-xs);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.split-image-box img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.split-content h2 {
  margin-bottom: 1rem;
}

.bullet-list {
  margin: 1.25rem 0 1.75rem 0;
}

.bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.bullet-check {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-xs);
  background-color: #F0F9FF;
  color: #0284C7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.2rem;
  border: 1px solid #BAE6FD;
}

.bullet-text strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--color-navy-primary);
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.bullet-text p {
  font-size: 0.8125rem;
  margin: 0;
  line-height: 1.45;
}

/* --------------------------------------------------------------------------
   PROGRAMS DETAILED CATALOG (On programs.html) — HIGH DENSITY
   -------------------------------------------------------------------------- */
.program-catalog-item {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-navy-primary);
  border-radius: var(--radius-xs);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 2.25rem;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  transition: box-shadow var(--transition-normal);
}

.program-catalog-item:nth-child(2n) {
  border-top-color: #38BDF8;
}

.program-catalog-item:hover {
  box-shadow: var(--shadow-lg);
}

.catalog-media {
  position: relative;
  height: 100%;
  min-height: 340px;
}

.catalog-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.catalog-details {
  padding: 2.25rem 2rem;
  display: flex;
  flex-direction: column;
}

.catalog-track-pill {
  align-self: flex-start;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.25rem 0.65rem;
  background-color: #F0F9FF;
  color: #0284C7;
  border-radius: var(--radius-xs);
  margin-bottom: 0.85rem;
  border: 1px solid #BAE6FD;
}

.catalog-details h2 {
  font-size: 1.6rem;
  color: var(--color-navy-primary);
  margin-bottom: 0.75rem;
}

.curriculum-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 1.25rem 0;
  padding: 1rem;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-border);
}

.meta-block h5 {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  margin-bottom: 0.25rem;
}

.meta-block p {
  font-size: 0.8125rem;
  color: var(--color-navy-primary);
  font-weight: 600;
  margin: 0;
}

.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0 1.5rem 0;
}

.topic-tag {
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-xs);
}

/* --------------------------------------------------------------------------
   CONTACT PAGE STYLING — HIGH DENSITY
   -------------------------------------------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 2.75rem;
}

.contact-info-panel {
  background-color: var(--color-navy-primary);
  color: var(--color-text-white);
  border-top: 4px solid #38BDF8;
  border-radius: var(--radius-xs);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-lg);
}

.contact-info-panel h2 {
  color: var(--color-text-white);
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.contact-info-panel p {
  color: #CBD5E1;
  font-size: 0.875rem;
  margin-bottom: 1.75rem;
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-icon-wrapper {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-xs);
  background-color: rgba(56, 189, 248, 0.15);
  color: #38BDF8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.contact-detail-text h4 {
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.contact-detail-text p {
  color: #94A3B8;
  font-size: 0.8125rem;
  margin: 0;
  line-height: 1.35;
}

.contact-form-card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-navy-primary);
  border-radius: var(--radius-xs);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-navy-primary);
  margin-bottom: 0.35rem;
}

.form-label span.req {
  color: #DC2626;
}

.form-control {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text-main);
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  outline: none;
  transition: all var(--transition-fast);
}

.form-control:focus {
  background-color: #FFFFFF;
  border-color: #0284C7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

textarea.form-control {
  min-height: 110px;
  resize: vertical;
}

.form-notice {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 0.85rem;
  line-height: 1.4;
}

.form-status {
  display: none;
  padding: 1rem;
  border-radius: var(--radius-xs);
  margin-top: 1.25rem;
  font-size: 0.875rem;
}

.form-status.success {
  display: block;
  background-color: #ECFDF5;
  border: 1px solid #A7F3D0;
  color: #065F46;
}

/* --------------------------------------------------------------------------
   CALL TO ACTION BANNER (Academic High Density)
   -------------------------------------------------------------------------- */
.cta-banner {
  background: linear-gradient(135deg, #001633 0%, #002147 60%, #003366 100%);
  color: var(--color-text-white);
  border-top: 4px solid #38BDF8;
  border-radius: var(--radius-xs);
  padding: 3.25rem 2.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.cta-banner h2 {
  color: var(--color-text-white);
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.cta-banner p {
  color: #CBD5E1;
  max-width: 38rem;
  margin: 0 auto 1.75rem auto;
  font-size: 0.9375rem;
}

.cta-banner .button-group {
  justify-content: center;
}

/* --------------------------------------------------------------------------
   SITE FOOTER (Academic High Density)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #001633;
  color: var(--color-text-light);
  font-size: 0.875rem;
  padding-top: 3.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr 0.8fr;
  gap: 2.75rem;
  margin-bottom: 3rem;
}

.footer-brand img {
  height: 44px;
  width: auto;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: #94A3B8;
  font-size: 0.8125rem;
  line-height: 1.55;
  margin-bottom: 1.25rem;
}

.footer-domain-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-xs);
  font-size: 0.75rem;
  color: #38BDF8;
  font-family: monospace;
}

.footer-col h4 {
  color: var(--color-text-white);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
  position: relative;
  padding-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: #38BDF8;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #94A3B8;
  font-size: 0.8125rem;
  display: inline-block;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer-links a:hover {
  color: #38BDF8;
  transform: translateX(3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.5rem 0;
  font-size: 0.75rem;
  color: #64748B;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1.25rem;
}

.footer-bottom-links a {
  color: #64748B;
}

.footer-bottom-links a:hover {
  color: #94A3B8;
}

/* --------------------------------------------------------------------------
   RESPONSIVE MEDIA QUERIES
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .hero-image-frame img {
    height: 330px;
  }
  .strip-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cards-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .split-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .split-grid.reversed {
    direction: ltr;
  }
  .program-catalog-item {
    grid-template-columns: 1fr;
  }
  .catalog-media {
    min-height: 240px;
  }
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 66px;
  }
  .top-bar {
    display: none;
  }
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: #002147;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.25rem 1.5rem;
    gap: 0.85rem;
    border-bottom: 2px solid #38BDF8;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    display: none;
  }
  .nav-menu.open {
    display: flex;
  }
  .nav-link {
    width: 100%;
    padding: 0.5rem 0;
    font-size: 0.9375rem;
    color: #E2E8F0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .nav-link:hover,
  .nav-link.active {
    color: #38BDF8;
  }
  .nav-link.active::after {
    display: none;
  }
  .header-actions .btn {
    display: none;
  }
  h1 {
    font-size: 2rem;
  }
  h2 {
    font-size: 1.6rem;
  }
  .hero-content h1 {
    font-size: 2.15rem;
  }
  .cards-grid-3,
  .cards-grid-2,
  .strip-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
    gap: 0.75rem;
  }
}