:root {
  --primary-navy: #0F2C59;
  --secondary-navy: #0A192F;
  --gold-accent: #D4AF37;
  --gold-hover: #B59226;
  --sky-blue: #0077B6;
  --bg-light: #F8FAFC;
  --card-bg: #FFFFFF;
  --text-main: #1E293B;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.6;
}

/* Header/* Top Concept Announcement Bar */
.announcement-bar {
  background-color: #7C2D12;
  color: #FEF3C7;
  padding: 5px 12px;
  text-align: center;
  font-size: 0.8rem;
  line-height: 1.25;
  font-weight: 500;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.announcement-bar.hide-for-screenshot {
  display: none !important;
}

.announcement-bar a {
  color: #FFFFFF;
  text-decoration: underline;
  font-weight: 700;
}

.announcement-bar a:hover {
  color: var(--gold-accent);
}

/* Top Utility Bar */
.top-bar {
  background-color: var(--secondary-navy);
  color: #E2E8F0;
  padding: 8px 0;
  font-size: 0.875rem;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.top-bar a {
  color: var(--gold-accent);
  text-decoration: none;
  font-weight: 500;
}

.top-bar a:hover {
  text-decoration: underline;
}

/* Navigation */
.navbar {
  background-color: var(--primary-navy);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
}

.brand-logo {
  color: #FFFFFF;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text .highlight {
  color: var(--gold-accent);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.brand-text .sub {
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 24px;
}

.nav-menu a {
  color: #E2E8F0;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease;
  padding: 6px 0;
  position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--gold-accent);
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--gold-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Layout Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Hero Section */
.hero {
  position: relative;
  background: url('../images/background-images/1122654139.jpg') 50.00% 16.33% / cover no-repeat;
  color: #FFFFFF;
  padding: 100px 0 120px;
  text-align: center;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

/* Subpage Hero Banner (Keeping full airplane in view) */
.hero-subpage {
  position: relative;
  background: url('../images/background-images/1122654139.jpg') 50.00% 5% / cover no-repeat;
  color: #FFFFFF;
  padding: 85px 0;
  min-height: auto;
  display: block;
  text-align: center;
  box-shadow: inset 0 -30px 40px rgba(10, 25, 47, 0.7);
}

.hero-subpage h1 {
  font-size: 2.75rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 12px;
  text-shadow: 0 3px 12px rgba(10, 25, 47, 0.95), 0 2px 4px rgba(0, 0, 0, 0.9);
}

.hero-subpage p {
  font-size: 1.2rem;
  color: #FFFFFF;
  font-weight: 600;
  max-width: 800px;
  margin: 0 auto;
  text-shadow: 0 2px 10px rgba(10, 25, 47, 0.95), 0 1px 4px rgba(0, 0, 0, 0.9);
}

.hero h1 {
  font-size: 3.25rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #FFFFFF;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.85), 0 4px 20px rgba(0, 0, 0, 0.7);
}

.hero h2 {
  font-size: 1.5rem;
  text-shadow: 0 3px 12px rgba(10, 25, 47, 0.95), 0 2px 6px rgba(0, 0, 0, 0.95), 0 0 15px rgba(0, 0, 0, 0.8);
}

.hero h3 {
  font-size: 1.35rem;
  text-shadow: 0 3px 12px rgba(10, 25, 47, 0.95), 0 2px 6px rgba(0, 0, 0, 0.95), 0 0 15px rgba(0, 0, 0, 0.8);
}

.hero p {
  font-size: 1.3rem;
  max-width: 780px;
  margin: 0 auto 30px;
  color: #FFFFFF;
  font-weight: 500;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.85), 0 3px 12px rgba(0, 0, 0, 0.6);
}

.btn-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  font-size: 0.95rem;
}

.btn-primary {
  background-color: var(--gold-accent);
  color: var(--secondary-navy);
}

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

.btn-secondary {
  background-color: var(--primary-navy);
  color: #FFFFFF;
  border: 2px solid var(--primary-navy);
}

.btn-secondary:hover {
  background-color: var(--secondary-navy);
  color: #FFFFFF;
  border-color: var(--secondary-navy);
  transform: translateY(-2px);
}

/* Hero specific secondary button */
.hero .btn-secondary {
  background-color: rgba(10, 25, 47, 0.75);
  color: #FFFFFF;
  border: 2px solid #FFFFFF;
  backdrop-filter: blur(4px);
}

.hero .btn-secondary:hover {
  background-color: #FFFFFF;
  color: var(--secondary-navy);
}

/* Sections */
.section {
  padding: 70px 0;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  color: var(--primary-navy);
  margin-bottom: 40px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background-color: var(--gold-accent);
  margin: 12px auto 0;
  border-radius: 2px;
}

/* Content Grid / Cards */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.card {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.card h3 {
  color: var(--primary-navy);
  margin-bottom: 12px;
}

.card-img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.portrait-card-img-container {
  width: 100%;
  height: 280px;
  background-color: var(--bg-light);
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 12px;
  margin-bottom: 16px;
  border: 1px solid var(--border-color);
}

.portrait-card-img-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

/* Gallery Slider */
.gallery-container {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.gallery-slides {
  display: flex;
  transition: transform 0.4s ease-in-out;
}

.slide {
  min-width: 100%;
  box-sizing: border-box;
}

.slide img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
}

.gallery-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(15, 44, 89, 0.7);
  color: #FFFFFF;
  border: none;
  padding: 14px 18px;
  cursor: pointer;
  font-size: 1.2rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease;
}

.gallery-btn:hover {
  background-color: var(--primary-navy);
}

.gallery-btn.prev { left: 16px; }
.gallery-btn.next { right: 16px; }

/* Accreditations */
.accreds-flex {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 36px;
  margin-top: 30px;
}

.accreds-flex img {
  max-height: 240px;
  max-width: 340px;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
  background: #FFFFFF;
  padding: 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.accreds-flex img:hover {
  transform: scale(1.05);
}

/* Modal Lightbox Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(10, 25, 47, 0.85);
  backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background-color: var(--card-bg);
  width: 90%;
  max-width: 1000px;
  height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  background-color: var(--primary-navy);
  color: #FFFFFF;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.modal-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-action-btn {
  background-color: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.modal-action-btn:hover {
  background-color: var(--gold-accent);
  color: var(--secondary-navy);
  border-color: var(--gold-accent);
}

.modal-close-btn {
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.modal-close-btn:hover {
  opacity: 1;
  color: var(--gold-accent);
}

.modal-body {
  flex: 1;
  background-color: #1E293B;
  position: relative;
  overflow: hidden;
}

.modal-body iframe,
.modal-body object {
  width: 100%;
  height: 100%;
  border: none;
}

/* Document & Resource Cards */
.doc-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--card-bg);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.doc-info h4 {
  color: var(--primary-navy);
  font-size: 1.1rem;
}

.doc-info p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Form Controls */
.form-group {
  margin-bottom: 12px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 4px;
  color: var(--primary-navy);
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
}

.form-control:focus {
  outline: none;
  border-color: var(--sky-blue);
  box-shadow: 0 0 0 3px rgba(0, 119, 182, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 80px;
}

/* Footer */
footer {
  background-color: var(--secondary-navy);
  color: #CBD5E1;
  padding: 50px 0 24px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: #FFFFFF;
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.footer-col p {
  color: #CBD5E1;
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--gold-accent);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease, text-decoration 0.2s ease;
}

.footer-col a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: #CBD5E1;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-col ul a:hover {
  color: var(--gold-accent);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid #1E293B;
  font-size: 0.875rem;
  color: #94A3B8;
}

/* Mobile Media Queries */
@media (max-width: 768px) {
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--primary-navy);
    flex-direction: column;
    padding: 20px;
    display: none;
    box-shadow: var(--shadow-md);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    background-position: 80% 15%;
    padding: 60px 0 70px;
    min-height: 55vh;
  }

  .hero-subpage {
    background-position: 80% 15%;
    padding: 50px 0;
  }

  .section {
    padding: 30px 0;
  }

  main.container {
    padding: 0 20px;
  }

  .grid-2, .grid-3 {
    gap: 20px;
  }
}