/* ============================================
   XOXO Cameroon - Stylesheet
   ============================================ */

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--charcoal);
  background: var(--cream);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* --- CSS Custom Properties --- */
:root {
  --red: #E03A3E;
  --red-dark: #C42F33;
  --red-text: #C42F33;    /* AA-compliant red for text on light backgrounds */
  --green: #4A8C5C;
  --green-text: #3D7A4E;  /* AA-compliant green for text on light backgrounds */
  --blue: #3B7CB8;
  --charcoal: #2D2D2D;
  --charcoal-light: #555;
  --cream: #F9F7F3;
  --white: #FFFFFF;
  --gray-light: #E8E6E2;
  --gray: #999;
  --footer-bg: #2D2D2D;

  --font-heading: 'Nunito', sans-serif;
  --font-body: 'Inter', sans-serif;

  --container: 1200px;
  --section-pad: 44px;
  --section-pad-mobile: 32px;
  --gap: 24px;
  --radius: 6px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--charcoal);
}

h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }
h4 { font-size: 1.25rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--red-text); text-decoration: none; }
a:hover { color: var(--red-dark); text-decoration: underline; }

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

/* --- Utilities --- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.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;
}

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

.skip-link {
  position: absolute; top: -100%; left: 50%;
  transform: translateX(-50%);
  background: var(--red); color: var(--white);
  padding: 8px 16px; border-radius: var(--radius);
  z-index: 1000; font-size: 0.875rem;
}
.skip-link:focus { top: 8px; text-decoration: none; }

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 14px 36px;
  border-radius: var(--radius);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}
.btn-primary:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
  color: var(--white);
  text-decoration: none;
}

.btn-secondary {
  background: transparent;
  color: var(--charcoal);
  border-color: var(--charcoal);
}
.btn-secondary:hover {
  background: var(--charcoal);
  color: var(--white);
  text-decoration: none;
}

.btn-white {
  background: var(--white);
  color: var(--red);
  border-color: var(--white);
}
.btn-white:hover {
  background: var(--cream);
  border-color: var(--cream);
  color: var(--red-dark);
  text-decoration: none;
}

/* --- Navigation --- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  transition: box-shadow 0.2s;
}

.site-nav.scrolled {
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
}

.nav-logo img {
  height: 82px;
  width: 82px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--charcoal);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--red-text); text-decoration: none; }
.nav-links a.active { color: var(--red-text); }

.nav-donate .btn {
  padding: 10px 24px;
  font-size: 0.875rem;
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--charcoal);
  margin: 6px 0;
  transition: transform 0.3s, opacity 0.3s;
}

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--white);
  z-index: 200;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 32px;
}

.mobile-nav.open { display: flex; }

.mobile-nav a {
  color: var(--charcoal);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
}
.mobile-nav a:hover { color: var(--red); }

.mobile-nav-close {
  position: absolute;
  top: 24px; right: 24px;
  background: none; border: none;
  font-size: 2rem; cursor: pointer;
  color: var(--charcoal);
  line-height: 1;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.55);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 40px 24px;
  max-width: 800px;
}

.hero h1 {
  color: var(--white);
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.hero .tagline {
  color: rgba(255,255,255,0.9);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 2rem;
  font-family: var(--font-body);
}

/* Page header (inner pages) */
.page-header {
  background: var(--cream);
  padding: 24px 0 16px;
  text-align: center;
}

.page-header h1 {
  color: var(--charcoal);
  font-size: 2.5rem;
}

/* --- Trust Bar --- */
.trust-bar {
  background: #F0EDE7;
  padding: 20px 0;
  text-align: center;
}

.trust-bar p {
  color: var(--charcoal);
  font-size: 0.9375rem;
  font-weight: 500;
  margin: 0;
}

/* --- Sections --- */
.section {
  padding: var(--section-pad) 0;
}

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

.section-warm {
  background: #F0EDE7;
}

.section-dark {
  background: var(--charcoal);
  color: var(--white);
}
.section-dark h2, .section-dark h3 { color: var(--white); }

.section-header {
  text-align: center;
  margin-bottom: 36px;
}

.section-header p {
  color: var(--charcoal-light);
  font-size: 1.125rem;
  max-width: 640px;
  margin: 0 auto;
}

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--red);
  display: block;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--charcoal-light);
  font-size: 0.9375rem;
}

/* --- Photo Grid --- */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.photo-grid img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  object-position: center 25%;
  border-radius: var(--radius);
}

.photo-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.photo-grid-3 img {
  height: 300px;
}

/* --- CTA Block --- */
.cta-block {
  text-align: center;
  padding: 0;
}

.cta-block h2 {
  margin-bottom: 1rem;
}

.cta-block p {
  max-width: 600px;
  margin: 0 auto 2rem;
  color: var(--charcoal-light);
  font-size: 1.125rem;
}

/* --- Team --- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
}

.team-card {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.team-card picture {
  flex-shrink: 0;
  width: 140px;
  height: 140px;
}

.team-card img {
  width: 140px;
  height: 140px;
  object-fit: cover;
  object-position: center 20%;
  border-radius: 50%;
  flex-shrink: 0;
}

.team-card h3 { margin-bottom: 4px; }
.team-card .role {
  color: var(--red-text);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 16px;
  display: block;
}

.advisors-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.advisor-card {
  background: var(--white);
  padding: 24px;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.advisor-card h4 { margin-bottom: 4px; }
.advisor-card .role {
  color: var(--green-text);
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 12px;
  display: block;
}
.advisor-card p { font-size: 0.9375rem; color: var(--charcoal-light); }

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--red);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
  padding-left: 24px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -38px;
  top: 4px;
  width: 14px;
  height: 14px;
  background: var(--red);
  border-radius: 50%;
  border: 3px solid var(--cream);
}

.timeline-item h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }

.timeline-item img {
  margin-top: 16px;
  border-radius: var(--radius);
  max-height: 400px;
  object-fit: cover;
}

/* --- Impact Callout --- */
.callout {
  background: var(--white);
  border-left: 4px solid var(--red);
  padding: 32px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 40px 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.callout .stat-number {
  font-size: 2rem;
  margin-bottom: 4px;
}

/* --- Letter Section --- */
.letter-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.letter-section img {
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

/* --- Giving Tiers --- */
.tiers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.tier-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.tier-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.tier-amount {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--red);
  margin-bottom: 8px;
}

.tier-card p,
.tier-description {
  color: var(--charcoal-light);
  font-size: 0.9375rem;
}

.tier-card.featured {
  border: 2px solid var(--red);
  position: relative;
}

.tier-card.featured::after {
  content: 'Most Popular';
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--red);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 12px;
}

/* --- Donorbox --- */
.donorbox-wrapper {
  max-width: 500px;
  margin: 0 auto;
  padding: 40px 0;
}

/* --- Forms --- */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.9375rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--charcoal);
  background: var(--white);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(224, 58, 62, 0.15);
}

.form-group textarea { resize: vertical; min-height: 140px; }

.contact-form {
  max-width: 560px;
  margin: 0 auto;
}

.contact-info {
  text-align: center;
  margin-top: 48px;
}

.contact-info a { font-weight: 600; }

/* --- Footer --- */
.site-footer {
  background: var(--footer-bg);
  color: rgba(255,255,255,0.8);
  padding: 56px 0 32px;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
}

.site-footer img {
  height: 100px;
  width: 100px;
  margin: 0 auto 16px;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1.125rem;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-trust {
  font-size: 0.875rem;
  margin-bottom: 8px;
  color: rgba(255,255,255,0.7);
}

.footer-links {
  margin: 20px 0;
  display: flex;
  justify-content: center;
  gap: 24px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.875rem;
}
.footer-links a:hover { color: var(--white); }

.footer-social {
  margin: 20px 0;
}

.footer-social a {
  color: rgba(255,255,255,0.7);
  font-size: 1.25rem;
  text-decoration: none;
}
.footer-social a:hover { color: var(--white); }

.footer-legal {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
  margin-top: 24px;
  line-height: 1.6;
}

/* --- Content utilities --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.two-col img {
  border-radius: var(--radius);
  max-height: 400px;
  width: 100%;
  object-fit: cover;
  object-position: center 25%;
}

.vision-list {
  list-style: none;
  padding: 0;
}

.vision-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-light);
  font-size: 1rem;
  color: var(--charcoal);
}

.vision-list li:last-child { border-bottom: none; }

.vision-list li strong {
  color: var(--green-text);
}

/* --- Support Cards (Get Involved) --- */
.support-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
  margin-top: 32px;
}

.support-card {
  background: var(--white);
  padding: 32px 24px;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.support-card h3 { margin-bottom: 12px; }
.support-card p { color: var(--charcoal-light); margin-bottom: 20px; }

/* --- Contact Page --- */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: flex-start;
}

.contact-item { margin-bottom: 24px; }
.contact-item h3 { font-size: 1rem; margin-bottom: 4px; }
.contact-item a { font-weight: 600; }
.contact-item p { color: var(--charcoal-light); font-size: 0.9375rem; }

/* --- Impact page timeline layout --- */
.well-project-story { padding: var(--section-pad) 0; }
.used-goods-drives { padding: var(--section-pad) 0; }
.whats-next { padding: var(--section-pad) 0; }

.timeline-content { margin-bottom: 8px; }

.letter-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.letter-grid img {
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  max-height: 420px;
  width: 100%;
  object-fit: cover;
  object-position: center top;
}

/* --- Callout as section --- */
section.callout {
  border-left: none;
  border-radius: 0;
  margin: 0;
  padding: var(--section-pad) 0;
  box-shadow: none;
  text-align: center;
}

section.callout .container {
  max-width: 700px;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .team-grid { grid-template-columns: 1fr; gap: 32px; }
  .tiers-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --section-pad: 48px;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .hero { min-height: 50vh; }
  .hero h1 { font-size: 2.25rem; }
  .hero .tagline { font-size: 1rem; }

  /* Nav */
  .nav-links { display: none; }
  .nav-donate { display: none; }
  .nav-hamburger { display: block; }

  /* Grids */
  .stats-grid { grid-template-columns: 1fr; gap: 16px; }
  .stat-card { padding: 24px 16px; }
  .stat-number { font-size: 2rem; }

  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .photo-grid img { height: 180px; }
  .photo-grid-3 { grid-template-columns: 1fr; }
  .photo-grid-3 img { height: 250px; }

  .two-col { grid-template-columns: 1fr; gap: 32px; }

  .team-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .advisors-grid { grid-template-columns: 1fr; }

  .letter-section { grid-template-columns: 1fr; }

  .tiers-grid { grid-template-columns: 1fr; }

  .callout { padding: 24px; }

  .support-grid { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
  .letter-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.75rem; }
  .photo-grid { grid-template-columns: 1fr; }
  .btn { padding: 12px 28px; }
}