/* ==========================================================================
   1. CSS VARIABLES & CORE STYLES
   ========================================================================== */
:root {
  --primary-color: #0056b3;
  --primary-hover: #003d80;
  --accent-color: #ff9800;
  --accent-hover: #e68a00;
  --dark-color: #1a1a1a;
  --light-color: #f8f9fa;
  --text-color: #333333;
  --text-muted: #6c757d;
  --border-color: #e9ecef;
  --white: #ffffff;
  
  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --shadow-sm: 0 2px 5px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 15px rgba(0,0,0,0.1);
  --max-width: 1200px;
}

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

body {
  font-family: var(--font-main);
  color: var(--text-color);
  background-color: var(--white);
  line-height: 1.6;
}

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

a:hover {
  color: var(--primary-hover);
}

ul {
  list-style: none;
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.5px;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
}

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

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

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

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

/* Section Title */
.section-title {
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}

.section-title h2 {
  font-size: 2rem;
  letter-spacing: 1px;
  color: var(--dark-color);
  display: inline-block;
  padding-bottom: 10px;
  position: relative;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--primary-color);
}

/* ==========================================================================
   2. TOP UTILITY BAR
   ========================================================================== */
.top-bar {
  background-color: var(--dark-color);
  color: #cccccc;
  font-size: 0.85rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.top-contact a {
  color: #cccccc;
  margin-right: 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.top-contact a:hover {
  color: var(--white);
}

.top-social {
  display: flex;
  gap: 15px;
}

.top-social a {
  color: #cccccc;
  font-size: 0.9rem;
}

.top-social a:hover {
  color: var(--accent-color);
}

/* ==========================================================================
   3. SITE HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 15px;
  padding-bottom: 15px;
}

.site-branding h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.5px;
}

.site-branding h1 a {
  color: var(--dark-color);
}

/* Main Navigation */
.main-navigation .nav-menu {
  display: flex;
  align-items: center;
}

.main-navigation .nav-menu > li {
  position: relative;
}

.main-navigation .nav-menu > li > a {
  display: block;
  padding: 12px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dark-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.main-navigation .nav-menu > li > a:hover,
.main-navigation .nav-menu > li > a.active {
  color: var(--primary-color);
}

.main-navigation .nav-menu i {
  font-size: 0.75rem;
  margin-left: 4px;
}

/* Multi-Level Sub-Menus */
.nav-menu ul.sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 220px;
  background-color: var(--white);
  box-shadow: var(--shadow-md);
  border-top: 3px solid var(--primary-color);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  z-index: 999;
}

.nav-menu ul.sub-menu li {
  position: relative;
  border-bottom: 1px solid var(--border-color);
}

.nav-menu ul.sub-menu li:last-child {
  border-bottom: none;
}

.nav-menu ul.sub-menu a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 18px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-color);
}

.nav-menu ul.sub-menu a:hover {
  background-color: var(--light-color);
  color: var(--primary-color);
  padding-left: 22px;
}

/* Nested Sub-Menu (Level 3) */
.nav-menu ul.sub-menu ul.sub-menu {
  top: 0;
  left: 100%;
  border-top: none;
  border-left: 3px solid var(--primary-color);
}

/* Hover States for Menus */
.nav-menu li.has-children:hover > ul.sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ==========================================================================
   4. HOMEPAGE CAROUSEL BANNER
   ========================================================================== */
.carousel-container {
  position: relative;
  width: 100%;
  height: 480px;
  background-color: var(--dark-color);
  overflow: hidden;
}

.carousel-slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.carousel-caption {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.2) 60%, rgba(0,0,0,0) 100%);
  display: flex;
  align-items: center;
  color: var(--white);
}

.carousel-caption h1 {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 5px;
}

.carousel-caption p {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: #dddddd;
}

.carousel-prev,
.carousel-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.4);
  color: var(--white);
  border: none;
  font-size: 1.5rem;
  padding: 12px 18px;
  cursor: pointer;
  transition: background var(--transition-fast);
  z-index: 10;
}

.carousel-prev:hover,
.carousel-next:hover {
  background: rgba(0, 0, 0, 0.8);
}

.carousel-prev { left: 0; }
.carousel-next { right: 0; }

/* ==========================================================================
   5. ACTIVITIES SECTION
   ========================================================================== */
.activities-section {
  padding: 70px 0;
  background-color: var(--light-color);
}

.activities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.activity-card {
  background: var(--white);
  padding: 35px 25px;
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.activity-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.activity-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background-color: rgba(0, 86, 179, 0.1);
  color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.activity-card h3 {
  font-size: 1.25rem;
  margin-bottom: 15px;
}

.activity-card h3 a {
  color: var(--dark-color);
}

.activity-card h3 a:hover {
  color: var(--primary-color);
}

.activity-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   6. BLOG SECTION
   ========================================================================== */
.blog-section {
  padding: 70px 0;
  background-color: var(--white);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.post-card {
  background-color: var(--white);
  border: 1px solid var(--border-color);
  padding: 25px;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
}

.post-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.post-card h3 a {
  color: var(--dark-color);
}

.post-card h3 a:hover {
  color: var(--primary-color);
}

.post-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 15px;
  display: flex;
  gap: 15px;
}

.post-meta i {
  margin-right: 4px;
}

.post-card p {
  color: var(--text-color);
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.post-card .read-more {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
}

/* ==========================================================================
   7. CALL TO ACTION BANNER
   ========================================================================== */
.cta-banner {
  background-color: var(--dark-color);
  color: var(--white);
  padding: 40px 0;
  border-top: 4px solid var(--accent-color);
}

.cta-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.cta-banner p {
  font-size: 1.1rem;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.cta-banner p i {
  font-size: 1.5rem;
  color: var(--accent-color);
}

/* ==========================================================================
   8. SITE FOOTER
   ========================================================================== */
.site-footer {
  background-color: #111111;
  color: #888888;
  padding: 25px 0;
  font-size: 0.85rem;
  border-top: 1px solid #222222;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-content a {
  color: #aaaaaa;
}

.footer-content a:hover {
  color: var(--white);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: #222222;
  border-radius: 50%;
  color: #aaaaaa;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background-color: var(--primary-color);
  color: var(--white);
}

/* ==========================================================================
   9. RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 992px) {
  .header-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-branding {
    margin-bottom: 15px;
  }

  .main-navigation {
    width: 100%;
    overflow-x: auto;
  }

  .main-navigation .nav-menu {
    width: max-content;
  }

  .carousel-caption h1 {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .top-bar-container,
  .cta-container,
  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }

  .top-contact a {
    margin: 0 10px;
  }

  .carousel-container {
    height: 360px;
  }

  .carousel-caption h1 {
    font-size: 2rem;
  }

  .carousel-caption p {
    font-size: 1rem;
  }

  .activities-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }
}