/* =============================================
   EDSIL - Bright Theme with Dropdown Navigation
   ============================================= */

/* ---------- Variables ---------- */
:root {
  /* Colors - Bright, high contrast theme */
  --color-bg: #0a1628;
  --color-bg-light: #132039;
  --color-bg-dropdown: #0f2035;
  
  --color-text: #ffffff;
  --color-text-secondary: #d0dae8;
  --color-text-muted: #a0b0c4;
  
  --color-accent: #00d4aa;
  --color-accent-hover: #00f5c4;
  --color-accent-subtle: rgba(0, 212, 170, 0.12);
  
  --color-border: rgba(255, 255, 255, 0.15);
  --color-border-light: rgba(255, 255, 255, 0.08);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  
  /* Layout */
  --header-height: 70px;
  --max-width: 1100px;
  
  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

h1 { font-size: 2.75rem; margin-bottom: var(--space-md); }
h2 { font-size: 1.75rem; margin-bottom: var(--space-md); }
h3 { font-size: 1.25rem; margin-bottom: var(--space-sm); }

p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

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

/* ---------- Container ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.875rem 1.75rem;
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-accent);
  border-radius: 4px;
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg);
  margin: 10px 10px 10px 10px;
}

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

.btn--large {
  padding: 1.125rem 2.5rem;
  font-size: 1.125rem;
}

.btn-arrow {
  transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

.text-link {
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.text-link:hover {
  text-decoration: underline;
}

/* =============================================
   HEADER WITH DROPDOWN NAVIGATION
   ============================================= */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-light);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--color-accent);
}

/* Main Navigation */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
}

.nav-links > li {
  position: relative;
}

.nav-links > li > a,
.nav-links > li > button {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.6rem 1rem;
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--transition-fast);
  font-family: inherit;
}

.nav-links > li > a:hover,
.nav-links > li > button:hover,
.nav-links > li > a.active {
  color: var(--color-text);
}

/* Dropdown Arrow */
.dropdown-arrow {
  font-size: 0.7rem;
  transition: transform var(--transition-fast);
  color: var(--color-text-muted);
}

.nav-links > li:hover .dropdown-arrow {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-bg-dropdown);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: var(--space-xs) 0;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
}

.nav-links > li:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 0.65rem 1.25rem;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.dropdown a:hover {
  color: var(--color-text);
  background: var(--color-accent-subtle);
}

.dropdown a.active {
  color: var(--color-accent);
}

/* Dropdown Divider */
.dropdown-divider {
  height: 1px;
  background: var(--color-border-light);
  margin: var(--space-xs) 0;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-fast);
}

/* =============================================
   HOME PAGE
   ============================================= */

.home-page main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--header-height) var(--space-lg) var(--space-lg);
}

.home-hero {
  max-width: 900px;
  text-align: center;
}

.hero-tagline {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.home-hero h1 {
  font-size: clamp(2.5rem, 6vw, 3.75rem);
  margin-bottom: var(--space-lg);
}

.highlight {
  color: var(--color-accent);
}

.hero-lead {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
}

.home-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-md);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* =============================================
   INTERIOR PAGES
   ============================================= */

.page-main {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-xl);
  min-height: 100vh;
}

.redundant {
  /* add background image */
  background-image: url('../images/DilijanRoad.jpg'); /* Path to your watermark image */
  background-size: cover; /* Cover the entire area */
  background-repeat: no-repeat; /* Prevent repeating */
  background-position: center; /* Center the image */
  background-attachment: fixed; /* stays put while scrolling */
  background-blend-mode: lighten;
  background-color: rgba(203, 198, 220, 0.9); /* Optional: Add a semi-transparent background for text readability */
}

.page-header {
  position: static;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border-light);
  padding: 10px;
}

.page-header h1 {
  margin-bottom: var(--space-sm);
}

.page-intro {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  max-width: 700px;
}

/* Content Sections */
.content-section {
  margin-bottom: var(--space-xl);
}

.content-section:last-child {
  margin-bottom: 0;
}

/* Content Cards */
.content-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  transition: border-color var(--transition-fast);
}

.content-card:hover {
  border-color: var(--color-accent);
}

.card-number,
.card-location {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.content-card h3 {
  color: var(--color-text);
}

.content-card p {
  margin-bottom: var(--space-sm);
}

/* Featured Quote */
.featured-quote {
  font-size: 1.3rem;
  font-style: italic;
  line-height: 1.8;
  color: var(--color-text-secondary);
  padding-left: var(--space-lg);
  border-left: 3px solid var(--color-accent);
  margin: var(--space-lg) 0;
}

/* Cards Grid (for 3-column layout) */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

/* Experience Grid */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.experience-item {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-lg);
  transition: border-color var(--transition-fast);
}

.experience-item:hover {
  border-color: var(--color-accent);
}

.experience-item .location {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.experience-item h3 {
  margin-bottom: var(--space-sm);
}

.experience-item p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* Team Section */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.team-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-lg);
  text-align: center;
}

.team-card img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: var(--space-md);
  border: 3px solid var(--color-border);
}

.team-card h3 {
  margin-bottom: var(--space-xs);
}

.team-role {
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--space-md);
}

/* Bio Page */
.bio-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.bio-image img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.bio-content blockquote {
  font-style: italic;
  color: var(--color-text-secondary);
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-accent);
  margin: var(--space-lg) 0;
}

.custom-quote {
  font-style: italic;
  font-size: 2rem;
  border-top: 3px solid #ad8888;
  border-bottom: 3px solid #ad8888;
  padding: 10px 0;
  text-align: center;
  margin: 20px 0;
}

/* School Detail Page */
.school-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.school-image img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* =============================================
   FOOTER
   ============================================= */

footer {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border-light);
  margin-top: var(--space-xl);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 900px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-bg);
    padding: var(--space-md);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    overflow-y: auto;
  }
  
  .nav-links.active {
    transform: translateX(0);
  }
  
  .nav-links > li > a,
  .nav-links > li > button {
    padding: var(--space-sm) 0;
    font-size: 1.1rem;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border-light);
  }
  
  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    padding-left: var(--space-md);
    max-height: 0;
    overflow: hidden;
  }
  
  .nav-links > li.dropdown-open .dropdown {
    max-height: 500px;
    padding-top: var(--space-xs);
    padding-bottom: var(--space-xs);
  }
  
  .dropdown a {
    padding: var(--space-xs) 0;
  }
  
  .bio-layout,
  .school-content {
    grid-template-columns: 1fr;
  }
  
  .bio-image {
    max-width: 250px;
    margin: 0 auto var(--space-lg);
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
  }
}

@media (max-width: 600px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  .page-main {
    padding-top: calc(var(--header-height) + var(--space-lg));
  }
  
  .hero-lead {
    font-size: 1.05rem;
  }
  
  .content-card,
  .experience-item {
    padding: var(--space-md);
  }
  
  .featured-quote {
    font-size: 1.1rem;
    padding-left: var(--space-md);
  }
}

/* =============================================
   UTILITY CLASSES
   ============================================= */

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }