/* Global Styles & Resets */
:root {
  /* NEW White Dark Blue Primary */
  --primary-color-start: rgba(255, 255, 255, 0.9);       /* Whiteish start for gradient */
  --primary-color-end: rgba(20, 40, 70, 0.95);        /* Dark Blue end for gradient */
  --primary-solid: #1C2833;                           /* Solid Dark Blue (e.g., Dark Slate Gray/Blue) */
  --primary-hover: #283747;                           /* Slightly Lighter/Softer Dark Blue for hover */
  --primary-extra-light-transparent: rgba(23, 77, 156, 0.322); /* Very Light Blue/Gray transparent */
  --primary-extra-light-opaque: rgb(220, 225, 235);            /* Very Light Blue/Gray opaque */

  --secondary-solid-text: #323c46;
  --neutral-light-gray: #e9ecef;
  --neutral-medium-gray: #ced4da;
  --neutral-dark-gray-border: rgba(50, 60, 70, 0.2);

  --accent-color: #3498DB; /* A brighter, clear blue for accents */
  --accent-hover: #2980B9; /* Slightly darker for hover */

  --text-color-light: #f8f9fa;
  --text-color-dark: #212529;
  --text-color-medium: #5f676d;

  --background-color: #fcfdfc;
  --card-bg-start: rgba(255, 255, 255, 0.9);
  --card-bg-end: rgba(230, 235, 245, 0.85);   /* New light blueish gray tint */
  --card-border-color: rgba(180, 190, 210, 0.45); /* New light blueish gray border */


  --blur-intensity: 5px;
  --border-radius: 8px;
  --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-medium: 0 5px 15px rgba(0, 0, 0, 0.07);

  --font-family: 'Nunito Sans', sans-serif;
  --transition-speed: 0.3s;
  --header-height-mobile: 65px;
  --sidebar-width: 260px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16.5px;
}

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

body.no-scroll {
  overflow-y: hidden;
}

.container {
  width: 90%;
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 12px;
  padding-right: 12px;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-color-dark);
}

h1 { font-size: 2.2rem; margin-bottom: 1rem; }
h2 { font-size: 1.8rem; margin-bottom: 1.2rem; }
h3 { font-size: 1.4rem; margin-bottom: 0.9rem; }
h4 { font-size: 1.2rem; margin-bottom: 0.8rem; }


a {
  color: var(--primary-solid);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

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

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

ul {
  list-style: none;
}

/* Section Styling */
.section-padding {
  padding-top: 55px;
  padding-bottom: 55px;
}

.section-title {
  text-align: center;
  margin-bottom: 35px;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-color-dark);
  position: relative;
  padding-bottom: 10px;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3.5px;
  background: linear-gradient(90deg, var(--primary-color-start), var(--primary-color-end));
  border-radius: 2px;
}


/* Site Header (Mobile) */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height-mobile);
  z-index: 900;
  background: linear-gradient(135deg, var(--primary-color-start), var(--primary-color-end));
  backdrop-filter: blur(var(--blur-intensity));
  -webkit-backdrop-filter: blur(var(--blur-intensity));
  box-shadow: var(--shadow-light);
  color: var(--text-color-light);
}
.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo-link {
  display: flex;
  align-items: center;
  color: var(--text-color-light); 
}
.logo-link:hover {
  color: var(--text-color-light); 
  opacity: 0.9;
}
.header-logo {
  height: 40px;
  margin-right: 10px;
}
.header-title {
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.25;
}

/* Menu Toggle Button (Hamburger) */
.menu-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 28px;
  height: 22px;
  padding: 0;
  z-index: 902;
}
.menu-toggle-icon,
.menu-toggle-icon::before,
.menu-toggle-icon::after {
  content: '';
  display: block;
  width: 28px;
  height: 3px;
  background-color: var(--text-color-light); 
  border-radius: 3px;
  transition: all var(--transition-speed) ease;
}
.menu-toggle-icon::before {
  transform: translateY(-8px);
}
.menu-toggle-icon::after {
  transform: translateY(8px);
}
.menu-toggle.open .menu-toggle-icon {
  background-color: transparent;
}
.menu-toggle.open .menu-toggle-icon::before {
  transform: translateY(0) rotate(45deg);
  background-color: var(--text-color-light); 
}
.menu-toggle.open .menu-toggle-icon::after {
  transform: translateY(0) rotate(-45deg);
  background-color: var(--text-color-light); 
}

/* Sidebar Navigation */
.sidebar-nav {
  position: fixed;
  top: 0;
  left: -100%;
  width: var(--sidebar-width);
  height: 100vh;
  background: linear-gradient(160deg, rgba(248, 250, 252, 0.9), var(--primary-extra-light-transparent)); 
  backdrop-filter: blur(calc(var(--blur-intensity) + 2px));
  -webkit-backdrop-filter: blur(calc(var(--blur-intensity) + 2px));
  z-index: 901;
  transition: left var(--transition-speed) ease-in-out;
  padding-top: var(--header-height-mobile);
  overflow-y: auto;
  box-shadow: var(--shadow-medium);
  border-right: 1px solid var(--card-border-color);
}
.sidebar-nav.open {
  left: 0;
}
.sidebar-header {
  padding: 18px 15px;
  border-bottom: 1px solid var(--neutral-dark-gray-border);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sidebar-logo-background {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color-start), var(--primary-color-end)); 
  margin-bottom: 15px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}

img.sidebar-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 0;
  box-shadow: none;
  margin: 0;
}

.sidebar-header h3 {
  color: var(--text-color-dark);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: center;
}
.nav-list {
  padding: 18px 0;
}
.nav-list li {
  border-bottom: 1px solid var(--neutral-dark-gray-border);
}
.nav-list li:last-child {
  border-bottom: none;
}
.nav-link {
  display: block;
  padding: 13px 22px;
  color: var(--text-color-medium);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background-color var(--transition-speed) ease, padding-left var(--transition-speed) ease, color var(--transition-speed) ease;
  position: relative;
}
.nav-link:hover, .nav-link.active {
  background-color: var(--primary-extra-light-transparent); 
  color: var(--primary-solid); 
  padding-left: 27px;
}
.submenu-arrow {
  float: right;
  transition: transform var(--transition-speed) ease;
  font-size: 0.8em;
}
.nav-link[aria-expanded="true"] .submenu-arrow {
  transform: rotate(180deg);
}
.submenu {
  list-style: none;
  padding-left: 0;
  max-height: 0;
  overflow: hidden;
  background-color: rgba(0, 0, 0, 0.03);
  transition: max-height 0.5s ease-out;
}
.submenu.open {
  /* max-height will be set by JS */
}
.submenu-link {
  font-size: 0.85rem;
  padding: 10px 22px 10px 36px;
  color: var(--text-color-medium);
}
.submenu-link:hover {
  background-color: var(--primary-extra-light-transparent); 
  padding-left: 41px;
  color: var(--primary-solid); 
}

/* Page Overlay */
.page-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 899;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-speed) ease, visibility var(--transition-speed) ease;
}
.page-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Page Content */
.page-content {
  padding-top: var(--header-height-mobile);
  transition: transform var(--transition-speed) ease;
}

/* Hero Section */
.hero-section {
  min-height: calc(100vh - var(--header-height-mobile));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  color: var(--text-color-dark);
  padding: 35px 0;
}
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('./res/images/background.jpg'); 
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  z-index: -2;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(240, 245, 255, 0.65); 
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: -1;
}
.hero-content {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.85), var(--primary-extra-light-transparent)); 
  backdrop-filter: blur(var(--blur-intensity));
  -webkit-backdrop-filter: blur(var(--blur-intensity));
  padding: 28px 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-medium);
  max-width: 600px;
}
.hero-logo {
  width: 90px;
  max-width: 110px;
  margin: 0 auto 15px;
}
.hero-title {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
  color: var(--text-color-dark);
}
.hero-subtitle {
  font-size: 1rem;
  margin-bottom: 15px;
  color: var(--text-color-medium);
}
.hero-divider {
  width: 65px;
  height: 2.5px;
  background-color: var(--primary-solid); 
  border: none;
  margin: 0 auto 20px;
  border-radius: 2px;
}

/* event Section */
.event-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 28px;
}
.event-member-card {
  background: linear-gradient(145deg, #ffffff, var(--primary-extra-light-opaque)); 
  border: 1px solid var(--card-border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  overflow: hidden;
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
  cursor: pointer;
}
.event-member-card:hover {
  transform: translateY(-4px) scale(1.015);
  box-shadow: var(--shadow-medium);
}
.event-member-image {
  width: 100%;
  height: 290px;
  object-fit: cover;
  object-position: top center;
}
.event-member-info {
  padding: 22px;
  text-align: center;
}
.event-member-name {
  font-size: 1.25rem;
  color: var(--text-color-dark);
  margin-bottom: 0;
}

/* Content Section (News, FAQ) */
.content-block { /* Renamed from pricing-table-wrapper */
  margin-bottom: 35px;
  background: linear-gradient(145deg, var(--card-bg-start), var(--card-bg-end)); 
  backdrop-filter: blur(var(--blur-intensity));
  -webkit-backdrop-filter: blur(var(--blur-intensity));
  border: 1px solid var(--card-border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  overflow: hidden;
}
.content-block-title { /* Renamed from pricing-category-title */
  background: linear-gradient(135deg, var(--primary-color-start), var(--primary-color-end)); 
  color: var(--text-color-dark);
  padding: 14px 18px;
  font-size: 1.3rem;
  margin-bottom: 0;
  font-weight: 600;
}

/* News Card Styles */
.news-grid-container {
    padding: 20px; 
}
.news-grid {
    display: grid;
    grid-template-columns: 1fr; 
    gap: 25px;
}
.news-card {
    background-color: var(--background-color); 
    border-radius: calc(var(--border-radius) - 4px); 
    box-shadow: var(--shadow-light);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}
.news-card-image-container {
    width: 100%;
    height: 150px; 
    overflow: hidden;
    background-color: var(--neutral-light-gray); 
}
.news-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover; 
}
.news-card-content {
    padding: 18px;
    display: flex;
    flex-direction: column;
    flex-grow: 1; 
}
.news-card-meta {
    font-size: 0.8rem;
    color: var(--text-color-medium);
    margin-bottom: 8px;
}
.news-card-date {
    font-weight: 500;
}
.news-card-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-color-dark);
    margin-bottom: 10px;
    line-height: 1.3;
}
.news-card-excerpt {
    font-size: 0.9rem;
    color: var(--text-color-medium);
    margin-bottom: 15px;
    flex-grow: 1; 
    line-height: 1.5;
}
.news-card-readmore {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
    margin-top: auto; 
}
.news-card-readmore:hover {
    color: var(--accent-hover);
}
.news-card-readmore .fas {
    margin-left: 5px;
    transition: transform 0.3s ease;
}
.news-card-readmore:hover .fas {
    transform: translateX(3px);
}

/* FAQ Section Styles */
.faq-container {
  padding: 20px;
}
.faq-item {
  margin-bottom: 15px;
  border-bottom: 1px solid var(--card-border-color);
}
.faq-item:last-child {
  margin-bottom: 0;
  border-bottom: none;
}
.faq-question {
  background-color: transparent;
  border: none;
  padding: 12px 0;
  width: 100%;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-color-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--transition-speed) ease;
}
.faq-question:hover,
.faq-question:focus {
  color: var(--primary-solid);
}
.faq-arrow {
  font-size: 0.9em;
  transition: transform var(--transition-speed) ease;
}
.faq-question[aria-expanded="true"] .faq-arrow {
  transform: rotate(180deg);
}
.faq-answer {
  padding-top: 0;
  padding-right: 0;
  padding-left: 0;
  padding-bottom: 0; /* Start with 0 padding-bottom */
  font-size: 0.95rem;
  color: var(--text-color-medium);
  line-height: 1.7;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding-bottom 0.4s ease-out; /* Transition padding-bottom */
}
.faq-answer.open {
 /* max-height is set by JS */
 padding-bottom: 70px; /* MODIFIED: Increased from 15px to 25px for more space after the answer */
}
.faq-answer p {
  margin-bottom: 10px;
}
.faq-answer p:last-child {
  margin-bottom: 0;
}


/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.contact-map-card, .contact-info-card {
  background: linear-gradient(145deg, var(--card-bg-start), var(--card-bg-end)); 
  backdrop-filter: blur(var(--blur-intensity));
  -webkit-backdrop-filter: blur(var(--blur-intensity));
  border: 1px solid var(--card-border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
  padding: 24px;
}
.contact-card-title {
  font-size: 1.4rem;
  margin-bottom: 18px;
  color: var(--text-color-dark);
  border-bottom: 2px solid var(--primary-solid); 
  padding-bottom: 10px;
}
.map-container {
  width: 100%;
  height: 340px;
  border-radius: calc(var(--border-radius) - 3px);
  overflow: hidden;
}
.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}
.contact-list li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 18px;
  font-size: 1rem;
}
.contact-list li:last-child {
  margin-bottom: 0;
}
.contact-icon {
  font-size: 1.25em;
  color: var(--primary-solid); 
  margin-right: 14px;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
  padding-top: 2px;
}
.contact-list a {
  color: var(--text-color-dark);
  font-weight: 500;
}
.contact-list a:hover {
  color: var(--primary-hover); 
}
.contact-list .highlight-contact a {
  color: var(--accent-color); 
  font-weight: 700;
}
.contact-list .highlight-contact a:hover {
  color: var(--accent-hover); 
}
.contact-list .highlight-contact .contact-icon {
  color: var(--accent-color); 
}


/* Site Footer Bottom */
.site-footer-bottom {
  background-color: var(--neutral-light-gray);
  color: var(--text-color-medium);
  padding: 18px 0;
  text-align: center;
  font-size: 0.85rem;
  border-top: 1px solid var(--neutral-medium-gray);
}

/* Image Modal */
.image-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(var(--blur-intensity));
  -webkit-backdrop-filter: blur(var(--blur-intensity));
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-speed) ease, visibility var(--transition-speed) ease;
  padding: 20px;
}
.image-modal.open {
  opacity: 1;
  visibility: visible;
}

.modal-inner-container {
  display: flex;
  flex-direction: column;
  width: auto;
  max-width: clamp(280px, 80vw, 650px);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  background: linear-gradient(145deg, #ffffff, var(--primary-extra-light-opaque)); 
  padding: 18px;
  border-radius: var(--border-radius);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.modal-close-btn {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 2.4rem;
  color: var(--text-color-light);
  cursor: pointer;
  transition: transform var(--transition-speed) ease;
  z-index: 1001;
}
.modal-close-btn:hover {
  transform: scale(1.1) rotate(90deg);
}

.modal-image-content {
  width: 100%;
  max-height: 55vh;
  object-fit: contain;
  border-radius: var(--border-radius);
  display: block;
  margin-bottom: 12px;
}

.modal-caption-content {
  width: 100%;
  color: var(--text-color-dark);
  text-align: left;
  font-size: 0.9rem;
  line-height: 1.5;
  overflow-wrap: break-word;
  word-wrap: break-word;
}


/* Responsive Adjustments */
@media (min-width: 576px) {
  .header-title { font-size: 0.95rem; }
  .hero-title { font-size: 2.5rem; }
  .hero-subtitle { font-size: 1.05rem; }
  .hero-logo { width: 100px; }
  .modal-inner-container {
    padding: 20px;
  }
}

@media (min-width: 768px) {
  .container { width: 85%; }
  .header-logo { height: 44px; }
  .header-title { font-size: 1rem; }
  .hero-title { font-size: 2.8rem; }
  .hero-subtitle { font-size: 1.1rem; }
  .hero-logo { width: 120px; }
  .section-title { font-size: 2.2rem; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .news-grid {
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
  }
  .news-grid.two-columns-md { 
      grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 992px) {
  .container { width: 80%; }
  .site-header { display: none; }
  .menu-toggle { display: none; }
  .sidebar-nav {
      left: 0;
      width: var(--sidebar-width);
      padding-top: 0;
      transform: translateX(0);
      box-shadow: 2px 0 12px rgba(0,0,0,0.05);
      height: 100vh;
  }
  .page-content {
      margin-left: var(--sidebar-width);
      padding-top: 0;
  }
  .page-overlay { display: none !important; }
  .hero-section { min-height: 100vh; }

  .news-grid {
    grid-template-columns: repeat(2, 1fr); 
  }
}

@media (min-width: 1200px) {
  .container { max-width: 1100px; }
  .hero-title { font-size: 3.1rem; }
}


/* Fallback for browsers that don't support backdrop-filter */
@supports not ((-webkit-backdrop-filter: none) or (backdrop-filter: none)) {
  .site-header {
    background: linear-gradient(135deg, var(--primary-color-start), var(--primary-color-end)); 
  }
  .sidebar-nav {
    background: linear-gradient(160deg, rgba(248, 250, 252, 0.95), var(--primary-extra-light-transparent)); 
  }
  .hero-section::before {
    background-color: rgba(240, 245, 255, 0.75); 
  }
  .hero-content {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), var(--primary-extra-light-transparent)); 
  }
  .event-member-card {
    background: linear-gradient(145deg, #ffffff, var(--primary-extra-light-opaque)); 
  }
  .content-block, /* Updated class name */
  .contact-map-card,
  .contact-info-card {
    background: linear-gradient(145deg, var(--card-bg-start), var(--card-bg-end)); 
    border: 1px solid var(--card-border-color);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .image-modal {
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
   .modal-inner-container {
    background: linear-gradient(145deg, #ffffff, var(--primary-extra-light-opaque)); 
  }
  .sidebar-logo-background {
    background: linear-gradient(135deg, var(--primary-color-start), var(--primary-color-end)); 
  }

  .site-header,
  .sidebar-nav,
  .hero-content,
  .image-modal {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }
}