:root {
  --color-primary-navy: #0B4F6C;
  --color-primary-blue: #2E9CCA;
  --color-accent-gold: #F6B042;
  --color-green: #2E8B57;
  --color-bg-light: #F7FAFC;
  --color-white: #FFFFFF;
  --color-text-dark: #1F2937;
  --color-text-gray: #6B7280;
  --color-border: #E5E7EB;

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Merriweather', serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-white);
  overflow-x: hidden;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary-navy);
  color: white;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: transparent;
  z-index: 1000;
  transition: background var(--transition-normal), backdrop-filter var(--transition-normal);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
  height: 64px; /* ensure a consistent navbar height for vertical centering */
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-white);
  transition: color var(--transition-normal);
}

.logo img,
.logo-svg {
  display: inline-block;
  vertical-align: middle;
  width: 40px;
  height: 40px;
}

.logo-text {
  display: inline-block;
  vertical-align: middle;
}

.header.scrolled .logo {
  color: var(--color-primary-navy);
}

.logo-svg {
  width: 40px;
  height: 40px;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.hamburger {
  position: relative;
  width: 25px;
  height: 2px;
  background: var(--color-white);
  transition: background var(--transition-normal);
}

.header.scrolled .hamburger {
  background: var(--color-primary-navy);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 25px;
  height: 2px;
  background: inherit;
  transition: transform var(--transition-normal);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

.mobile-toggle[aria-expanded="true"] .hamburger {
  background: transparent;
}

.mobile-toggle[aria-expanded="true"] .hamburger::before {
  transform: rotate(45deg) translate(5px, 6px);
}

.mobile-toggle[aria-expanded="true"] .hamburger::after {
  transform: rotate(-45deg) translate(5px, -6px);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-white);
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-sm);
  position: relative;
  transition: color var(--transition-normal);
}

.header.scrolled .nav-link {
  color: var(--color-text-dark);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-gold);
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link:focus {
  /* Remove default focus ring for mouse/touch interactions */
  outline: none;
}

/* Provide an accessible focus style only for keyboard users */
.nav-link:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 2px;
}

.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Use a solid professional background instead of a heavy gradient */
  background: var(--color-primary-blue);
  overflow: hidden;
}

.hero::before {
  /* restore decorative background image but keep it subtle for readability */
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('./assets/images/banner.png');
  background-size: cover;
  background-position: center;
  opacity: 0.12; /* subtle */
  transform-origin: center;
  animation: parallax 30s ease infinite alternate;
  z-index: 1;
}

@keyframes parallax {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.1);
  }
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* subtle single-tone overlay for readability */
  background: rgba(11, 79, 108, 0.65);
}

/* top decorative wave for hero */
.hero-top-wave {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 140px;
  pointer-events: none;
  z-index: 0; /* behind hero content but above background */
  overflow: visible;
}
.hero-top-wave svg {
  display: block;
  width: 100vw;
  height: 100%;
}

/* ensure hero content sits above the top wave */
.hero-content { z-index: 2; }
.hero-top-wave { z-index: 1; }

@media (max-width: 1024px) {
  .hero-top-wave { height: 120px; }
}
@media (max-width: 480px) {
  .hero-top-wave { height: 90px; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--color-white);
  max-width: 900px;
  padding: var(--spacing-lg);
  animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent-gold);
}

.hero-text {
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-xl);
  border-radius: 50px;
  text-decoration: none;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: 2px solid transparent;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background: #FFBB33;
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 20px rgba(246, 176, 66, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-primary-navy);
  transform: translateY(-2px) scale(1.05);
}

.btn:focus {
  outline: 3px solid var(--color-accent-gold);
  outline-offset: 3px;
}

.stats {
  background: var(--color-white);
  padding: var(--spacing-2xl) 0;
  box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.05);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-lg);
  text-align: center;
}

.stat-card {
  padding: var(--spacing-lg);
  animation: fadeIn 1s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), background var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  margin-bottom: var(--spacing-sm);
}

.stat-icon svg {
  width: 44px;
  height: 44px;
  display: block;
}

/* If a stat uses text inside .stat-icon (e.g. "Free", "Medium"),
   style it to match the numeric .stat-number appearance */
.stat-icon .stat-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary-navy);
  line-height: 1;
  margin: 0;
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-primary-navy);
  margin-bottom: var(--spacing-xs);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--color-primary-navy);
  line-height: 1;
}

.stat-label {
  margin-top: 0.6rem;
  font-size: 1rem;
}

.stat-icon {
  font-size: 3rem;
  color: var(--color-green);
}

.stat-label {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-text-gray);
  margin-top: var(--spacing-xs);
}

section {
  padding: var(--spacing-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-primary-navy);
  margin-bottom: var(--spacing-sm);
}

.section-divider {
  width: 80px;
  height: 4px;
  background: var(--color-accent-gold);
  margin: 0 auto var(--spacing-md);
  border-radius: 2px;
}

.section-description {
  font-size: 1.1rem;
  color: var(--color-text-gray);
  max-width: 700px;
  margin: 0 auto;
}

/* Video section styles */
    .video-section {
      position: relative;
      padding: var(--spacing-2xl) 0;
      overflow: hidden;
      background: linear-gradient(135deg, #f5f9fc 0%, #e8f4f8 100%);
    }

    .video-section::before {
      content: '';
      position: absolute;
      top: -2px;
      left: 0;
      width: 100%;
      height: 120px;
      background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120'%3E%3Cpath d='M0,50 Q300,10 600,50 T1200,50 L1200,0 L0,0 Z' fill='%23ffffff' opacity='0.8'/%3E%3Cpath d='M0,60 Q300,20 600,60 T1200,60 L1200,120 L0,120 Z' fill='%23f7fafc' opacity='0.6'/%3E%3C/svg%3E") repeat-x;
      background-size: 600px 120px;
      animation: wave 15s linear infinite;
      z-index: 1;
    }

    .video-section::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 150px;
      background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 150'%3E%3Cpath d='M0,75 Q300,30 600,75 T1200,75 L1200,150 L0,150 Z' fill='%23ffffff' opacity='0.7'/%3E%3Cpath d='M0,90 Q300,40 600,90 T1200,90 L1200,150 L0,150 Z' fill='%23f7fafc' opacity='0.5'/%3E%3C/svg%3E") repeat-x;
      background-size: 600px 150px;
      animation: wave 20s linear infinite reverse;
      z-index: 1;
    }

    @keyframes wave {
      0% {
        background-position: 0 0;
      }
      100% {
        background-position: 600px 0;
      }
    }

    .video-wrapper {
      display: flex;
      justify-content: center;
      position: relative;
      z-index: 2;
    }

    .video-placeholder {
      width: 100%;
      max-width: 900px;
      aspect-ratio: 16/9;
      background: linear-gradient(180deg, rgba(0,0,0,0.45), rgba(0,0,0,0.6));
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .video-thumbnail {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      filter: brightness(0.45);
      transition: transform var(--transition-slow), filter var(--transition-fast);
    }

    .video-placeholder:hover .video-thumbnail {
      transform: scale(1.03);
      filter: brightness(0.4);
    }

    .video-play {
      position: relative;
      z-index: 3;
      width: 76px;
      height: 76px;
      border-radius: 50%;
      display: inline-grid;
      place-items: center;
      text-decoration: none;
      background: rgba(255,255,255,0.95);
      color: var(--color-primary-navy);
      font-size: 1.6rem;
      cursor: pointer;
      box-shadow: var(--shadow-lg);
      transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    }

    .video-play:hover {
      transform: scale(1.06);
      box-shadow: 0 14px 34px rgba(0,0,0,0.18);
      background: var(--color-accent-gold);
    }

    /* About Section with Scrolling Image Cards */
    .about {
      /* background: var(--color-bg-light); */
      padding: var(--spacing-2xl) 0;
    }

    .about-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--spacing-2xl);
      align-items: center;
    }

    .about-text h3 {
      font-family: var(--font-heading);
      font-size: 1.8rem;
      color: var(--color-primary-navy);
      margin-bottom: var(--spacing-md);
    }

    .about-text p {
      margin-bottom: var(--spacing-md);
      line-height: 1.8;
    }

    .belief-quote {
      background: linear-gradient(180deg, rgba(255,255,255,1), rgba(250,250,250,1));
      border-radius: 12px;
      padding: var(--spacing-lg);
      margin: var(--spacing-xl) 0;
      font-style: normal;
      box-shadow: 0 8px 24px rgba(16,24,40,0.08);
      border-left: 6px solid var(--color-accent-gold);
    }

    .belief-quote p {
      margin: 0;
      color: var(--color-primary-navy);
      font-weight: 500;
      line-height: 1.7;
    }

    /* Scrolling Image Container */
    .scrolling-images {
      position: relative;
      height: 600px;
      overflow: hidden;
      border-radius: 16px;
      box-shadow: var(--shadow-lg);
      background: var(--color-white);
    }

    .image-scroll-wrapper {
      display: flex;
      flex-direction: column;
      height: 100%;
      animation: infiniteScroll 20s linear infinite;
    }

    .image-card {
      flex-shrink: 0;
      height: 200px;
      width: 100%;
      overflow: hidden;
      /* border-radius: 8px; */
      position: relative;
    }

    .image-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform var(--transition-slow);
    }

    .image-card:hover img {
      transform: scale(1.05);
    }

    .image-card::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to bottom, transparent, rgba(11, 79, 108, 0.2));
      pointer-events: none;
    }

    @keyframes infiniteScroll {
      0% {
        transform: translateY(0);
      }
      100% {
        transform: translateY(-600px);
      }
    }

    .image-scroll-wrapper:hover {
      animation-play-state: paused;
    }

    .section-header {
      text-align: center;
      margin-bottom: var(--spacing-xl);
    }

    .section-title {
      font-family: var(--font-heading);
      font-size: clamp(2rem, 4vw, 2.5rem);
      font-weight: 700;
      color: var(--color-primary-navy);
      margin-bottom: var(--spacing-sm);
    }

    .section-divider {
      width: 80px;
      height: 4px;
      background: var(--color-accent-gold);
      margin: 0 auto var(--spacing-md);
      border-radius: 2px;
    }

    /* Responsive */
    @media (max-width: 768px) {
      .about-content {
        grid-template-columns: 1fr;
      }

      .video-placeholder {
        max-width: 100%;
      }

      .scrolling-images {
        height: 400px;
      }

      @keyframes infiniteScroll {
        0% {
          transform: translateY(0);
        }
        100% {
          transform: translateY(-400px);
        }
      }
    }


/* Principal message section */
.principal-content {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.principal-photo img {
  width: 220px;
  height: 280px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  display: block;
}

.principal-text p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-dark);
  line-height: 1.7;
}

.principal-sign {
  margin-top: var(--spacing-md);
  color: var(--color-primary-navy);
}

/* Nepali language fallback and spacing */
[lang="ne"] {
  font-family: 'Noto Sans Devanagari', var(--font-body);
}

@media (max-width: 768px) {
  .principal-content {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .principal-photo {
    justify-self: center;
  }
}

.about-text h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--color-primary-navy);
  margin-bottom: var(--spacing-md);
}

.about-text p {
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.about-intro {
  font-size: 1.05rem;
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-md);
}

.belief-quote {
  background: linear-gradient(180deg, rgba(255,255,255,1), rgba(250,250,250,1));
  border-radius: 12px;
  padding: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  font-style: normal;
  box-shadow: 0 8px 24px rgba(16,24,40,0.08);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border-left: 6px solid var(--color-accent-gold);
  transform-origin: center;
  animation: cardIn 0.6s cubic-bezier(.2,.8,.2,1) both;
}

.belief-quote:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(16,24,40,0.12);
}

.belief-quote p {
  margin: 0;
  color: var(--color-primary-navy);
  font-weight: 500;
  line-height: 1.7;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(14px) scale(0.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.about-image {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-slow);
}

.about-image:hover {
  transform: scale(1.03);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

@media (max-width: 1024px) {
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .courses-grid {
    grid-template-columns: 1fr;
  }
}

.course-card {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  cursor: pointer;
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.course-icon {
  margin-bottom: var(--spacing-md);
}

.course-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-primary-navy);
  margin-bottom: var(--spacing-sm);
}

.course-description {
  color: var(--color-text-gray);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.course-subjects {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.course-subjects li {
  background: var(--color-bg-light);
  color: var(--color-primary-navy);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: 0.85rem;
  font-family: var(--font-heading);
}

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

.facilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.facility-card {
  background: var(--color-bg-light);
  padding: var(--spacing-xl);
  border-radius: 12px;
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.facility-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.facility-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.facility-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--color-primary-navy);
  margin-bottom: var(--spacing-sm);
}

.facility-card p {
  color: var(--color-text-gray);
  line-height: 1.6;
}

.rules {
  background: var(--color-bg-light);
}

/* Decorative background for the Rules section - subtle image + color overlay to match hero */
#rules {
  position: relative;
  padding: calc(var(--spacing-2xl) + 40px) 0;
  background-color: var(--color-primary-blue);
  color: var(--color-white);
  overflow: hidden;
}

#rules::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('./assets/images/gallery-2.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.30;
  z-index: 0;
}

#rules .container {
  position: relative;
  z-index: 2;
}

#rules .section-header .section-title {
  color: var(--color-white);
}

#rules .section-description {
  color: rgba(255,255,255,0.9);
}

/* decorative wave at top of rules to connect with other waves */
#rules::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 120px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120'%3E%3Cpath d='M0,50 Q300,10 600,50 T1200,50 L1200,0 L0,0 Z' fill='%23114f6c' opacity='0.45'/%3E%3C/svg%3E") no-repeat center/cover;
  pointer-events: none;
  z-index: 1;
}

@media (max-width: 768px) {
  #rules::after { height: 90px; }
  #rules { padding: var(--spacing-2xl) 0; }
}

.rules-accordion {
  max-width: 900px;
  margin: 0 auto;
}

.accordion-item {
  background: var(--color-white);
  border-radius: 8px;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: transparent;
  border: none;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary-navy);
  cursor: pointer;
  text-align: left;
  transition: background var(--transition-fast);
}

.accordion-header:hover {
  background: var(--color-bg-light);
}

.accordion-header:focus {
  /* remove the visible outline for mouse/touch interaction */
  outline: none;
  outline-offset: 0;
}

/* show focus only for keyboard users */
.accordion-header:focus-visible {
  outline: 3px solid rgba(249, 115, 22, 0.18);
  outline-offset: 2px;
}

.accordion-icon {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
}

.accordion-arrow {
  margin-left: auto;
  transition: transform var(--transition-normal);
}

.accordion-header[aria-expanded="true"] .accordion-arrow {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.accordion-header[aria-expanded="true"] + .accordion-content {
  max-height: 500px;
  padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.accordion-content ul {
  list-style: none;
  padding-left: 0;
}

.accordion-content li {
  padding: var(--spacing-xs) 0 var(--spacing-xs) var(--spacing-lg);
  position: relative;
  line-height: 1.6;
  color: var(--color-text-gray);
}

.accordion-content li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-green);
  font-weight: 700;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  cursor: pointer;
  aspect-ratio: 4/3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-item::after {
  content: '🔍';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  font-size: 3rem;
  color: white;
  opacity: 0;
  transition: all var(--transition-normal);
}

.gallery-item:hover::after {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox-image {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  border-radius: 8px;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: none;
  font-size: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  transition: background var(--transition-normal);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-close {
  top: 20px;
  right: 20px;
}

.lightbox-prev {
  left: 20px;
}

.lightbox-next {
  right: 20px;
}

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

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-2xl);
  max-width: 1100px;
  margin: 0 auto;
}

.contact-info h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--color-primary-navy);
  margin-bottom: var(--spacing-lg);
}

.info-item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.info-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.info-item strong {
  display: block;
  font-family: var(--font-heading);
  color: var(--color-primary-navy);
  margin-bottom: var(--spacing-xs);
}

.info-item p {
  color: var(--color-text-gray);
  margin: 0;
}

.info-item a {
  color: var(--color-primary-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.info-item a:hover {
  color: var(--color-primary-navy);
  text-decoration: underline;
}

.contact-form {
  background: var(--color-bg-light);
  padding: var(--spacing-xl);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-primary-navy);
  margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-blue);
  box-shadow: 0 0 0 3px rgba(46, 156, 202, 0.1);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #EF4444;
}

.error-message {
  display: block;
  color: #EF4444;
  font-size: 0.85rem;
  margin-top: var(--spacing-xs);
  min-height: 1.2rem;
}

.btn-submit {
  width: 100%;
  margin-top: var(--spacing-md);
}

.footer {
  background: var(--color-primary-navy);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer h3,
.footer h4 {
  font-family: var(--font-heading);
  margin-bottom: var(--spacing-md);
}

.footer-info p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

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

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-contact p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-xs);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  margin: var(--spacing-xs) 0;
  color: rgba(255, 255, 255, 0.7);
}

.footer-credit {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

.footer-credit strong {
  color: var(--color-accent-gold);
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--color-accent-gold);
  color: var(--color-primary-navy);
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
}

.back-to-top:hover {
  transform: translateY(-4px);
}

.back-to-top:focus {
  outline: 3px solid var(--color-primary-blue);
  outline-offset: 2px;
}

.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(150%);
  background: var(--color-green);
  color: white;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: 50px;
  box-shadow: var(--shadow-lg);
  font-family: var(--font-heading);
  font-weight: 600;
  z-index: 2001;
  transition: transform var(--transition-normal);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 30px 30px;
    box-shadow: var(--shadow-lg);
    transition: right var(--transition-normal);
    overflow-y: auto;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    color: var(--color-text-dark);
    width: 100%;
    padding: var(--spacing-sm) 0;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  .about-image {
    order: -1;
  }

  .courses-grid,
  .facilities-grid {
    grid-template-columns: 1fr;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .lightbox-prev,
  .lightbox-next {
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
  }

  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }

  .lightbox-close {
    top: 10px;
    right: 10px;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.3rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

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

  .logo-text {
    display: none;
  }
}