/* AAO Theme - Blue Color Palette
 * Primary Blue: #1a36b4
 * Light Blue: #2d4fd6
 * Accent Blue: #a4c2f4
 * Off-White: #f6f5ec
 * Black: #1d1d1d
 * White: #ffffff
 */

:root {
  --aao-primary: #1a36b4;
  --aao-primary-light: #2d4fd6;
  --aao-accent: #a4c2f4;
  --aao-off-white: #f6f5ec;
  --aao-black: #1d1d1d;
  --aao-white: #ffffff;
  --aao-gray: #6b7280;
  --aao-gray-light: #9ca3af;
  --aao-gray-dark: #374151;
  --aao-border: #e5e7eb;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--aao-white);
  min-height: 100vh;
  color: var(--aao-black);
  line-height: 1.6;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--aao-primary) 0%, var(--aao-primary-light) 100%);
  color: white;
  padding: 5rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(164,194,244,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(164,194,244,0.15) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(255,255,255,0.08) 0%, transparent 30%);
  pointer-events: none;
}

.hero-container {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-logo {
  margin-bottom: 2rem;
}

.aao-logo {
  height: 80px;
  width: auto;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.15));
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.95;
  margin-bottom: 2.5rem;
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.2s;
}

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

.btn-primary:hover {
  background: var(--aao-off-white);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.5);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: white;
}

.btn-outline {
  background: transparent;
  color: var(--aao-primary);
  border: 2px solid var(--aao-primary);
}

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

/* Section Styles */
.section {
  padding: 5rem 2rem;
}

.section--alt {
  background: var(--aao-off-white);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--aao-black);
}

.section-subtitle {
  text-align: center;
  font-size: 1.1rem;
  color: var(--aao-gray);
  margin-bottom: 3rem;
}

/* Cards */
.card {
  background: var(--aao-white);
  border: 1px solid var(--aao-border);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.2s;
}

.card:hover {
  border-color: var(--aao-primary);
  box-shadow: 0 4px 12px rgba(26, 54, 180, 0.1);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--aao-primary) 0%, var(--aao-primary-light) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.5rem;
}

.card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--aao-black);
}

.card p {
  font-size: 1rem;
  color: var(--aao-gray);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.card a {
  color: var(--aao-primary);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
}

.card a:hover {
  text-decoration: underline;
}

/* Callouts - Light Blue Theme */
.callout {
  background: linear-gradient(135deg, #eef4fc 0%, #dbe8fc 100%);
  border: 2px solid var(--aao-accent);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  margin-bottom: 2rem;
}

.callout-pill {
  display: inline-block;
  background: var(--aao-primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.75rem;
}

.callout p {
  color: #1e3a5f;
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
}

.callout a {
  color: var(--aao-primary);
  font-weight: 600;
}

.callout a:hover {
  text-decoration: underline;
}

/* CTA Section */
.cta {
  padding: 5rem 2rem;
  background: linear-gradient(135deg, var(--aao-primary) 0%, var(--aao-primary-light) 100%);
  text-align: center;
  color: white;
}

.cta-container {
  max-width: 600px;
  margin: 0 auto;
}

.cta h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta p {
  font-size: 1.15rem;
  opacity: 0.95;
  margin-bottom: 2rem;
}

/* Footer */
.footer {
  background: #1f2937;
  color: var(--aao-gray-light);
  padding: 3rem 2rem;
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: #d1d5db;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.footer-copyright {
  font-size: 0.875rem;
}

/* Links */
a {
  color: var(--aao-primary);
}

a:hover {
  text-decoration: underline;
}

/* Content Links */
.content-link {
  color: var(--aao-primary);
  font-weight: 600;
  text-decoration: none;
}

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

/* Mission/Intro Section */
.mission {
  padding: 4rem 2rem;
  background: var(--aao-off-white);
  text-align: center;
}

.mission-container {
  max-width: 700px;
  margin: 0 auto;
}

.mission p {
  font-size: 1.25rem;
  color: var(--aao-gray-dark);
  line-height: 1.8;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
}

/* ============================================
   ARTICLE & CONTENT PAGE STYLES
   ============================================ */

/* Article Cards Grid */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.article-card {
  background: var(--aao-white);
  border: 1px solid var(--aao-border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.2s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  border-color: var(--aao-primary);
  box-shadow: 0 4px 12px rgba(26, 54, 180, 0.15);
  transform: translateY(-2px);
}

.article-card-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-category {
  display: inline-block;
  background: #dbe8fc;
  color: var(--aao-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
  width: fit-content;
}

.article-card h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--aao-black);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.article-card p {
  font-size: 0.95rem;
  color: var(--aao-gray);
  line-height: 1.6;
  flex: 1;
}

.article-card-footer {
  padding: 1rem 1.5rem;
  background: #f9fafb;
  border-top: 1px solid var(--aao-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.read-more {
  color: var(--aao-primary);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.read-more svg {
  transition: transform 0.2s;
}

.article-card:hover .read-more svg {
  transform: translateX(4px);
}

/* Coming Soon Placeholder */
.coming-soon {
  background: #f9fafb;
  border: 2px dashed var(--aao-border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  color: var(--aao-gray);
}

.coming-soon h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--aao-gray-light);
}

.coming-soon p {
  font-size: 0.9rem;
}

/* ============================================
   SUB-NAVIGATION (Sticky Article Nav)
   ============================================ */

.sub-nav {
  background: #f9fafb;
  border-bottom: 1px solid var(--aao-border);
  position: sticky;
  top: 60px;
  z-index: 100;
}

.sub-nav-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
}

.sub-nav-links {
  display: flex;
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.sub-nav-links a {
  padding: 1rem 1.5rem;
  color: #4b5563;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
}

.sub-nav-links a:hover {
  color: var(--aao-primary);
  background: #dbe8fc;
}

.sub-nav-links a.active {
  color: var(--aao-primary);
  border-bottom-color: var(--aao-primary-light);
}

/* ============================================
   ARTICLE CONTENT SECTIONS
   ============================================ */

.article-section {
  margin-bottom: 4rem;
  scroll-margin-top: 140px;
}

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

.article-section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--aao-primary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--aao-primary-light);
}

.article-section h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--aao-black);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.article-section h3:first-child {
  margin-top: 0;
}

.article-section p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--aao-gray-dark);
  margin-bottom: 1rem;
}

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

.article-section a:not(.cta-btn):not(.org-card):not(.protocol-card) {
  color: var(--aao-primary-light);
  font-weight: 500;
}

.article-section a:not(.cta-btn):not(.org-card):not(.protocol-card):hover {
  text-decoration: underline;
}

.article-section ul {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--aao-gray-dark);
}

.article-section ul li {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ============================================
   DIAGRAMS
   ============================================ */

.diagram-container {
  background: #f9fafb;
  border: 1px solid var(--aao-border);
  border-radius: 12px;
  padding: 2rem;
  margin: 2rem 0;
  text-align: center;
}

.diagram {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--aao-gray-dark);
}

.diagram-layer {
  margin-bottom: 1rem;
}

.diagram-layer-label {
  font-weight: 700;
  color: var(--aao-primary);
}

.diagram-horizontal {
  background: #dbeafe;
  border: 2px solid #3b82f6;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 0.5rem;
}

.diagram-vertical {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.diagram-vertical-item {
  background: #dbe8fc;
  border: 2px solid var(--aao-primary-light);
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  min-width: 140px;
}

.diagram-traditional {
  background: #fef3c7;
  border: 2px solid #f59e0b;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  margin-top: 0.5rem;
}

.diagram-arrow {
  color: var(--aao-gray);
  font-size: 1.5rem;
  margin: 0.25rem 0;
}

.diagram-caption {
  font-size: 0.85rem;
  color: var(--aao-gray);
  margin-top: 1rem;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ============================================
   PROTOCOL CARDS
   ============================================ */

.protocol-card {
  background: #f9fafb;
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  border-left: 4px solid var(--aao-primary-light);
  text-decoration: none;
  display: block;
}

.protocol-card.horizontal {
  border-left-color: #3b82f6;
}

.protocol-card.traditional {
  border-left-color: #f59e0b;
}

.protocol-card h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--aao-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.protocol-card.horizontal h4 {
  color: #1e40af;
}

.protocol-card.traditional h4 {
  color: #92400e;
}

.protocol-card .subtitle {
  font-size: 0.85rem;
  color: var(--aao-gray);
  margin-bottom: 0.75rem;
}

.protocol-card p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--aao-gray-dark);
  margin-bottom: 0.75rem;
}

.protocol-card p:last-child {
  margin-bottom: 0;
}

.protocol-card ul {
  margin: 0.5rem 0 0.75rem 1.25rem;
  font-size: 0.95rem;
}

.protocol-card .external-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.9rem;
  margin-top: 0.5rem;
  color: var(--aao-primary);
}

/* ============================================
   KEY POINT BOX
   ============================================ */

.key-point {
  background: linear-gradient(135deg, #dbe8fc 0%, #c5d9f7 100%);
  border: 2px solid var(--aao-primary-light);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 2rem 0;
}

.key-point-label {
  display: inline-block;
  background: var(--aao-primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.75rem;
}

.key-point p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--aao-primary);
  font-weight: 500;
  margin: 0;
}

/* ============================================
   ORG/RESOURCE CARDS GRID
   ============================================ */

.org-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.org-card {
  background: var(--aao-white);
  border: 1px solid var(--aao-border);
  border-radius: 12px;
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
}

.org-card:hover {
  border-color: var(--aao-primary);
  box-shadow: 0 4px 12px rgba(26, 54, 180, 0.15);
  transform: translateY(-2px);
}

.org-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--aao-primary);
  margin-bottom: 0.25rem;
}

.org-card .org-type {
  font-size: 0.8rem;
  color: var(--aao-gray);
  margin-bottom: 0.75rem;
}

.org-card p {
  font-size: 0.9rem;
  color: var(--aao-gray-dark);
  line-height: 1.6;
  flex: 1;
}

.org-card .visit-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--aao-primary);
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 1rem;
}

.org-card:hover .visit-link svg {
  transform: translateX(4px);
}

.org-card .visit-link svg {
  transition: transform 0.2s;
}

/* ============================================
   HERO VARIANTS
   ============================================ */

/* Smaller hero for article pages */
.hero--article {
  padding: 4rem 2rem 3rem;
}

.hero--article h1 {
  font-size: 2.5rem;
}

.hero-breadcrumb {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-bottom: 1rem;
}

.hero-breadcrumb a {
  color: white;
  text-decoration: none;
}

.hero-breadcrumb a:hover {
  text-decoration: underline;
}

/* ============================================
   CENTERED FOOTER (Simple)
   ============================================ */

.footer--centered {
  text-align: center;
}

.footer--centered .footer-links {
  justify-content: center;
  margin-bottom: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 3rem 1.5rem 2.5rem;
  }

  .hero--article {
    padding: 3rem 1.5rem 2rem;
  }

  .hero--article h1 {
    font-size: 1.75rem;
  }

  .aao-logo {
    height: 60px;
  }

  .hero-logo {
    margin-bottom: 1.5rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .footer-container {
    flex-direction: column;
    text-align: center;
  }

  .section {
    padding: 3rem 1.5rem;
  }

  /* Article responsive */
  .articles-grid {
    grid-template-columns: 1fr;
  }

  .sub-nav-links a {
    padding: 0.875rem 1rem;
    font-size: 0.875rem;
  }

  .article-section {
    scroll-margin-top: 120px;
  }

  .diagram-vertical {
    flex-direction: column;
    align-items: center;
  }

  .container {
    padding: 2rem 1.5rem;
  }
}