/* ACU Education Foundation - Production Stylesheet */
/* ============================================================
   TABLE OF CONTENTS
   1. Variables & Reset
   2. Base Typography
   3. Layout Helpers
   4. Header & Navigation
   5. Hero Section
   6. Buttons
   7. Section Components
   8. Cards
   9. Footer
   10. Page Specifics
   11. Forms
   12. Gallery & Lightbox
   13. FAQ Accordion
   14. Animations
   15. Accessibility
   16. Responsive
   ============================================================ */

/* 1. Variables & Reset */
:root {
  --primary: #1e3a8a;
  --primary-light: #3b82f6;
  --secondary: #f97316;
  --accent: #0ea5e9;
  --dark: #0f172a;
  --text: #1e293b;
  --text-light: #475569;
  --text-muted: #64748b;
  --bg: #ffffff;
  --bg-light: #f8fafc;
  --bg-warm: #f1f5f9;
  --border: #e2e8f0;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --font-head: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: 0.25s ease;
  --max-width: 1200px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover, a:focus {
  color: var(--primary);
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 10000;
  transition: top 0.3s;
}
.skip-link:focus {
  top: 0;
}

/* 2. Base Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.25;
  color: var(--dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
p { margin-bottom: 1rem; }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.section-label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--secondary);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: 2rem;
  color: var(--dark);
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto 2rem;
}

/* 3. Layout Helpers */
.container {
  width: 92%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section {
  padding: 5rem 0;
}

.section-bg {
  background: var(--bg-light);
}

.section-warm {
  background: var(--bg-warm);
}

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

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.flex {
  display: flex;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 { gap: 2rem; }

.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }

/* 4. Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: box-shadow var(--transition), transform var(--transition);
}

.header.sticky {
  box-shadow: var(--shadow-lg);
}

.header.hide {
  transform: translateY(-100%);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
  text-decoration: none;
}

.logo img {
  height: 44px;
  width: auto;
}

.logo:hover, .logo:focus {
  text-decoration: none;
  color: var(--primary);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 1.75rem;
}

.nav-menu a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  position: relative;
  padding: 0.25rem 0;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: width var(--transition);
}

.nav-menu a:hover,
.nav-menu a:focus,
.nav-menu a.active {
  color: var(--primary);
  text-decoration: none;
}

.nav-menu a:hover::after,
.nav-menu a:focus::after,
.nav-menu a.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--dark);
  font-size: 1.5rem;
}

.mobile-toggle:focus-visible {
  outline: 2px solid var(--primary-light);
  border-radius: var(--radius);
}

/* 5. Hero Section */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary) 0%, #0f172a 100%);
  color: #fff;
  padding-top: 72px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3rem;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero-content .lead {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 540px;
}

.hero-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.badge i {
  color: var(--secondary);
}

/* 6. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  text-decoration: none;
}

.btn:hover, .btn:focus {
  text-decoration: none;
  transform: translateY(-1px);
}

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

.btn-primary:hover, .btn-primary:focus {
  background: #ea580c;
  color: #fff;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover, .btn-outline:focus {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
}

.btn-dark {
  background: var(--dark);
  color: #fff;
}

.btn-dark:hover, .btn-dark:focus {
  background: #1e293b;
  color: #fff;
}

.btn-light {
  background: var(--bg-light);
  color: var(--primary);
  border: 1px solid var(--border);
}

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

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* 7. Section Components */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: rgba(30, 58, 138, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.5rem;
  color: var(--primary);
}

.stat-number {
  font-family: var(--font-head);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* Mission & Vision */
.mv-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

.mv-card:hover {
  box-shadow: var(--shadow-lg);
}

.mv-card .icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  background: rgba(30, 58, 138, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.mv-card h3 {
  margin-bottom: 0.75rem;
}

.mv-card p {
  color: var(--text-light);
  margin-bottom: 0;
}

/* Programs */
.program-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.program-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.program-card .card-img {
  height: 200px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 3rem;
}

.program-card .card-body {
  padding: 1.5rem;
}

.program-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.program-card p {
  color: var(--text-light);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}

.tag {
  display: inline-block;
  background: rgba(30, 58, 138, 0.08);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.75rem;
  border-radius: 2rem;
}

/* Projects */
.project-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  display: grid;
  grid-template-columns: 280px 1fr;
  transition: box-shadow var(--transition);
}

.project-card:hover {
  box-shadow: var(--shadow-lg);
}

.project-card .card-img {
  height: 100%;
  min-height: 220px;
  background: linear-gradient(135deg, var(--primary), var(--dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2.5rem;
}

.project-card .card-body {
  padding: 1.75rem;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.project-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 2rem;
}

.status-ongoing {
  background: rgba(14, 165, 233, 0.1);
  color: #0284c7;
}

.status-completed {
  background: rgba(34, 197, 94, 0.1);
  color: #15803d;
}

/* Testimonials */
.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
}

.testimonial-card::before {
  content: '"';
  font-family: Georgia, serif;
  font-size: 4rem;
  color: var(--secondary);
  line-height: 1;
  opacity: 0.3;
  position: absolute;
  top: 0.5rem;
  left: 1.5rem;
}

.testimonial-text {
  font-style: italic;
  color: var(--text-light);
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.testimonial-author .avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  flex-shrink: 0;
}

.testimonial-author .name {
  font-weight: 600;
  color: var(--dark);
}

.testimonial-author .role {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Partners */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 2rem;
}

.partner-item {
  width: 160px;
  height: 80px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.partner-item:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, #0f172a 100%);
  color: #fff;
  text-align: center;
  padding: 4rem 0;
}

.cta-section h2 {
  color: #fff;
  margin-bottom: 1rem;
}

.cta-section p {
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

/* Volunteer */
.volunteer-section {
  background: var(--bg-warm);
}

.volunteer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.volunteer-form {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

/* Digital Operations */
.digital-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.digital-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.digital-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.digital-card .icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: rgba(30, 58, 138, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.digital-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.digital-card p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 0;
}

/* Blog */
.blog-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.blog-card .card-img {
  height: 200px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2.5rem;
}

.blog-card .card-body {
  padding: 1.5rem;
}

.blog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.blog-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.blog-card h3 a {
  color: var(--dark);
  text-decoration: none;
}

.blog-card h3 a:hover,
.blog-card h3 a:focus {
  color: var(--primary-light);
}

.blog-card .excerpt {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 0;
}

/* 8. Cards general */
.card-list {
  display: grid;
  gap: 1.5rem;
}

/* 9. Footer */
.footer {
  background: var(--dark);
  color: #cbd5e1;
  padding: 4rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 1rem;
  display: inline-flex;
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.7;
  opacity: 0.85;
}

.footer h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover,
.footer-links a:focus {
  color: #fff;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.9375rem;
}

.footer-contact i {
  color: var(--secondary);
  margin-top: 0.25rem;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: #94a3b8;
}

.footer-bottom a {
  color: #94a3b8;
  text-decoration: none;
  margin-left: 1.5rem;
}

.footer-bottom a:hover,
.footer-bottom a:focus {
  color: #fff;
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
  z-index: 999;
  box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover, .back-to-top:focus {
  transform: translateY(-3px);
  background: var(--primary-light);
}

/* 10. Page Specifics */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, #0f172a 100%);
  color: #fff;
  padding: 8rem 0 4rem;
  text-align: center;
}

.page-header h1 {
  color: #fff;
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.page-header p {
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  margin-top: 1rem;
  opacity: 0.85;
}

.breadcrumb a {
  color: #fff;
  text-decoration: none;
}

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

/* Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.25rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--secondary);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 2px var(--secondary);
}

.timeline-item h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.timeline-item p {
  color: var(--text-light);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* Values */
.value-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: box-shadow var(--transition);
}

.value-card:hover {
  box-shadow: var(--shadow-lg);
}

.value-card .icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: rgba(30, 58, 138, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.value-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.value-card p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 0;
}

/* Team */
.team-card {
  text-align: center;
}

.team-card .avatar-lg {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2.5rem;
  font-weight: 600;
  margin: 0 auto 1rem;
}

.team-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.team-card .role {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* 11. Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  font-size: 0.875rem;
  color: #dc2626;
  margin-top: 0.35rem;
  display: none;
}

.form-error.visible {
  display: block;
}

.form-success {
  font-size: 0.9375rem;
  color: #15803d;
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.2);
  padding: 1rem;
  border-radius: var(--radius);
  display: none;
}

.form-success.visible {
  display: block;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-item .icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: rgba(30, 58, 138, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-info-item p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 0;
}

.map-placeholder {
  width: 100%;
  height: 280px;
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  margin-top: 1.5rem;
}

.map-placeholder i {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--primary-light);
}

/* 12. Gallery & Lightbox */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 2rem;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover, .filter-btn:focus {
  border-color: var(--primary-light);
  color: var(--primary);
}

.filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4 / 3;
  background: var(--bg-warm);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item .overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery-item:hover .overlay {
  opacity: 1;
}

.gallery-item .overlay i {
  color: #fff;
  font-size: 1.5rem;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.95);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.lightbox-close:hover, .lightbox-close:focus {
  background: rgba(255,255,255,0.25);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.lightbox-nav:hover, .lightbox-nav:focus {
  background: rgba(255,255,255,0.25);
}

.lightbox-prev { left: 1.5rem; }
.lightbox-next { right: 1.5rem; }

/* 13. FAQ Accordion */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  overflow: hidden;
  background: var(--bg);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  cursor: pointer;
  transition: background var(--transition);
}

.faq-question:hover, .faq-question:focus {
  background: var(--bg-light);
}

.faq-question i {
  color: var(--primary-light);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.25rem;
}

.faq-answer p {
  color: var(--text-light);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* 14. Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Counter */
.counter {
  font-variant-numeric: tabular-nums;
}

/* 15. Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 16. Responsive */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .project-card { grid-template-columns: 1fr; }
  .project-card .card-img { min-height: 200px; }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--bg);
    flex-direction: column;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-150%);
    transition: transform 0.35s ease;
    gap: 0.5rem;
    z-index: 999;
  }
  .nav-menu.open {
    transform: translateY(0);
  }
  .mobile-toggle {
    display: block;
  }
  .header-actions .btn {
    display: none;
  }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 2.25rem; }
  .grid-2, .grid-3, .grid-4, .stats-grid, .digital-grid { grid-template-columns: 1fr; }
  .volunteer-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .section { padding: 3rem 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .page-header h1 { font-size: 2rem; }
  .partner-grid { gap: 1rem; }
  .partner-item { width: 120px; height: 64px; }
}

@media (max-width: 480px) {
  .hero-content h1 { font-size: 1.875rem; }
  .section-title { font-size: 1.625rem; }
  .gallery-grid { grid-template-columns: 1fr; }
  .btn-group { flex-direction: column; }
  .btn { width: 100%; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* Print */
@media print {
  .header, .footer, .back-to-top, .mobile-toggle, .btn {
    display: none !important;
  }
  body { color: #000; background: #fff; }
  a { text-decoration: underline; color: #000; }
  .section { padding: 1rem 0; }
}

/* Legal Pages */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.legal-content h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
}

.legal-content ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-content li {
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.legal-content p {
  color: var(--text-light);
}

/* 404 */
.error-404 {
  text-align: center;
  padding: 6rem 0;
}

.error-404 h1 {
  font-size: 6rem;
  color: var(--primary);
  line-height: 1;
}

.error-404 h2 {
  margin-bottom: 1rem;
}

.error-404 p {
  color: var(--text-light);
  margin-bottom: 2rem;
}

/* Article page */
.article-header {
  text-align: center;
  margin-bottom: 2rem;
}

.article-body {
  max-width: 720px;
  margin: 0 auto;
}

.article-body p {
  color: var(--text-light);
  margin-bottom: 1.25rem;
}

.article-body h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article-body ul {
  margin-left: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--text-light);
}

.article-body li {
  margin-bottom: 0.5rem;
}

.blockquote {
  border-left: 4px solid var(--secondary);
  padding-left: 1.5rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--text-light);
}