/* Design System - Light/Professional (UN Style) */
/* Mobile-First Responsive Design */

:root {
  /* Colors */
  --color-bg: #ffffff;
  --color-text: #333333;
  --color-primary: #009edb;
  /* UN Blue */
  --color-primary-dark: #007bb5;
  --color-secondary: #003366;
  /* Dark Navy */
  --color-accent: #c0392b;
  /* Earthy Red */
  --color-surface: #f8f9fa;
  --color-surface-hover: #e9ecef;
  --color-border: #dee2e6;

  /* Typography - Mobile First */
  --font-main: 'Inter', sans-serif;
  --font-heading: 'Outfit', sans-serif;

  /* Spacing - Mobile First (smaller on mobile) */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
  line-height: 1.2;
}

/* Mobile typography */
h1 {
  font-size: 1.75rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

h4 {
  font-size: 1.1rem;
}

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

a:hover {
  color: #00568c;
}

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

/* Layout Utilities - Mobile First */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.section {
  padding: var(--spacing-lg) 0;
}

/* Components - Mobile First */
.btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  background-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 4px;
  transition:
    transform var(--transition-fast),
    background-color var(--transition-fast);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  text-align: center;
  width: 100%;
}

.btn:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  border-radius: 4px;
  transition: all var(--transition-fast);
  width: 100%;
  text-align: center;
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: #fff;
}

/* Header - Mobile First */
.site-header {
  padding: var(--spacing-sm) 0;
  background-color: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.nav-wrapper {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
  z-index: 1001;
}

/* Hamburger Button - Mobile Only */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 2rem;
  height: 2rem;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  position: relative;
}

.hamburger span {
  width: 2rem;
  height: 0.2rem;
  background-color: var(--color-secondary);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Hamburger active state (X icon) */
.hamburger.is-active span:nth-child(1) {
  transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.hamburger.is-active span:nth-child(2) {
  opacity: 0;
}

.hamburger.is-active span:nth-child(3) {
  transform: rotate(-45deg) translate(0.5rem, -0.5rem);
}

/* Mobile Navigation */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-bg);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  z-index: 1000;
  overflow-y: auto;
  padding-top: 5rem;
}

.main-nav.is-open {
  transform: translateX(0);
}

.main-menu {
  display: flex;
  flex-direction: column;
  gap: 0;
  list-style: none;
  width: 100%;
  padding: var(--spacing-md);
}

.main-menu li {
  width: 100%;
  border-bottom: 1px solid var(--color-border);
}

.main-menu li:last-child {
  border-bottom: none;
  margin-top: var(--spacing-md);
}

.main-menu a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 1.1rem;
  padding: 1rem;
  display: block;
  text-align: left;
  width: 100%;
}

.main-menu a:hover {
  background-color: var(--color-surface);
  color: var(--color-primary);
}

/* Join Us button in mobile menu */
.main-menu .btn {
  margin-top: 0;
}

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

/* Footer - Mobile First */
.site-footer {
  background-color: var(--color-secondary);
  color: #fff;
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-lg);
  text-align: center;
}

.site-footer p {
  opacity: 0.8;
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.8s ease forwards;
}

/* Hero Section - Mobile First */
.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: var(--spacing-md);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(0, 51, 102, 0.8), rgba(0, 51, 102, 0.6)),
    url('https://images.unsplash.com/photo-1624989285407-244fd165373b?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=M3w0OTUyODh8MHwxfHNlYXJjaHwxNnx8aW5kaWdlbm91cyUyMHBlb3BsZXxlbnwwfDB8fHwxNzQzMTgzNjQzfDA&ixlib=rb-4.0.3&q=120&w=1600');
  background-size: cover;
  background-position: center;
  z-index: -1;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 0 var(--spacing-sm);
}

.hero-content h1 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-md);
  color: #fff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  line-height: 1.3;
}

.hero-text {
  font-size: 1rem;
  margin: 0 auto var(--spacing-md);
  opacity: 0.95;
  font-weight: 300;
  line-height: 1.6;
}

/* Grid & Cards - Mobile First */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.card {
  background-color: #fff;
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.card h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--color-secondary);
}

.read-more {
  display: inline-block;
  margin-top: var(--spacing-sm);
  font-weight: 600;
}

/* Form Styles - Mobile First */
.contact-form {
  width: 100%;
  max-width: 600px;
  margin-top: var(--spacing-md);
  background-color: #fff;
  padding: var(--spacing-md);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-secondary);
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  background-color: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: 4px;
  font-family: var(--font-main);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 158, 219, 0.1);
}

/* ============================================
   TABLET & LARGER SCREENS (Progressive Enhancement)
   ============================================ */

/* Tablet: 768px and up */
@media (min-width: 768px) {
  :root {
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .btn,
  .btn-outline {
    width: auto;
    padding: 0.8rem 1.5rem;
  }

  .nav-wrapper {
    flex-direction: row;
    justify-content: space-between;
  }

  .logo {
    font-size: 1.5rem;
  }

  /* Hide hamburger on tablet/desktop */
  .hamburger {
    display: none;
  }

  /* Reset mobile navigation styles */
  .main-nav {
    position: static;
    transform: none;
    width: auto;
    height: auto;
    background-color: transparent;
    padding-top: 0;
    overflow-y: visible;
  }

  .main-menu {
    flex-direction: row;
    gap: var(--spacing-md);
    padding: 0;
    width: auto;
  }

  .main-menu li {
    width: auto;
    border-bottom: none;
    margin-top: 0;
  }

  .main-menu li:last-child {
    margin-top: 0;
  }

  .main-menu a {
    font-size: 1rem;
    padding: 0.5rem;
    text-align: center;
  }

  .main-menu a:hover {
    background-color: transparent;
  }

  .main-menu .btn {
    margin-top: 0;
  }

  .hero {
    min-height: 70vh;
  }

  .hero-content h1 {
    font-size: 2.75rem;
  }

  .hero-text {
    font-size: 1.15rem;
  }

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

  .site-footer {
    text-align: left;
  }
}

/* Desktop: 1024px and up */
@media (min-width: 1024px) {
  :root {
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.25rem;
  }

  h3 {
    font-size: 1.75rem;
  }

  .hero {
    min-height: 80vh;
  }

  .hero-content h1 {
    font-size: 3.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
  }

  .hero-text {
    font-size: 1.25rem;
    max-width: 700px;
  }

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

  .card:hover {
    transform: translateY(-5px);
  }
}

/* ============================================
   Content Page Styles
   ============================================ */
.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

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

.content-wrapper h2,
.content-wrapper h3,
.content-wrapper h4 {
  margin-top: 2.5rem;
  margin-bottom: 0.25rem;
  color: var(--color-secondary);
}

.content-wrapper h2:first-child,
.content-wrapper h3:first-child {
  margin-top: 0;
}

.content-wrapper ul,
.content-wrapper ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-md);
}

.content-wrapper li {
  margin-bottom: 0.5rem;
}

/* Anchor links */
/* Anchor links */
.anchor-link {
  display: none;
  color: var(--color-primary);
  font-size: 1rem;
  /* Adjust size for SVG */
  line-height: 1;
  opacity: 0;
  /* Initially hidden */
  text-decoration: none;
  vertical-align: middle;
  transition:
    opacity var(--transition-fast),
    color var(--transition-fast);
}

.anchor-link svg {
  display: inline-block;
  vertical-align: middle;
}

h2:hover .anchor-link,
h3:hover .anchor-link,
h4:hover .anchor-link {
  display: inline;
  opacity: 0.5;
  /* Visible on heading hover */
}

.anchor-link:hover {
  opacity: 1 !important;
  color: var(--color-primary-dark);
}

/* Link Preview Card */
.link-preview-wrapper {
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.link-preview-card {
  display: flex;
  flex-direction: column;
  background-color: #f8f9fa;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  color: var(--color-text);
  text-decoration: none;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.link-preview-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
}

.preview-image {
  height: 200px;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--color-border);
}

.preview-content {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.preview-title {
  font-weight: 700;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-secondary);
  line-height: 1.3;
}

.preview-desc {
  font-size: 0.9rem;
  color: #666;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.preview-domain {
  font-size: 0.8rem;
  color: #888;
  text-transform: uppercase;
  font-weight: 500;
  margin-top: auto;
}

/* Fallback/Error styles */
.link-preview-error,
.link-preview-fallback {
  padding: 1rem;
  background-color: #f8f9fa;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  word-break: break-all;
}

.news-meta {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: var(--spacing-sm);
}

@media (min-width: 768px) {
  .link-preview-card {
    flex-direction: row;
    max-height: 150px;
  }

  .preview-image {
    width: 150px;
    height: auto;
    border-bottom: none;
    border-right: 1px solid var(--color-border);
    flex-shrink: 0;
  }

  .preview-content {
    justify-content: center;
  }
}