/* LHF Site — Navy + Gold, Institutional Design */

:root {
  --navy: #1a365d;
  --navy-dark: #122848;
  --navy-light: #2a4a7f;
  --gold: #d4a853;
  --gold-light: #e8c97a;
  --green: #1a8a5e;
  --text: #1a202c;
  --text-light: #4a5568;
  --bg: #ffffff;
  --bg-subtle: #f8f7f4;
  --bg-alt: #f0eeeb;
  --border: #e2e8f0;
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 17px;
}

.container { max-width: 1000px; margin: 0 auto; padding: 0 24px; }

/* ── Header ── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg);
  padding: 16px 0;
  transition: box-shadow 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.site-header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { text-decoration: none; display: flex; align-items: center; }
.logo-img {
  height: 40px;
  width: auto;
}
.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}
.nav-links a {
  color: var(--text-light);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--navy); }
.nav-cta {
  background: var(--gold) !important;
  color: white !important;
  padding: 8px 18px;
  border-radius: 6px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--gold-light) !important; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 1px;
}

/* Spacer for fixed header */
body { padding-top: 64px; }

/* ── Sections ── */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-subtle); }
.section-dark { background: var(--navy); }

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: 32px;
  color: var(--navy);
  margin-bottom: 32px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gold);
}
.section-title-light {
  color: white;
  border-bottom-color: var(--gold);
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-gold {
  background: var(--gold);
  color: white;
}
.btn-gold:hover { background: var(--gold-light); }
.btn-outline {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.4);
}
.section-alt .btn-outline {
  color: var(--navy);
  border-color: var(--navy);
}
.section-alt .btn-outline:hover {
  background: var(--navy);
  color: white;
}
.btn-outline:hover {
  border-color: white;
  background: rgba(255,255,255,0.1);
}
.btn-sm { padding: 10px 22px; font-size: 14px; }

/* ── Hero ── */
.hero {
  background: linear-gradient(165deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: white;
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light), var(--gold));
}
.hero-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 20px;
}
.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.25;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.hero-subtitle {
  font-size: 18px;
  opacity: 0.85;
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.6;
}
.hero-ctas { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Stats Grid ── */
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.stat-card {
  text-align: center;
  padding: 32px 24px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 42px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gold);
  margin-bottom: 12px;
}
.stat-card p { font-size: 15px; color: var(--text-light); }

/* ── Mission ── */
.mission-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px; align-items: center; }
.mission-text p { margin-bottom: 16px; color: var(--text-light); font-size: 16px; line-height: 1.7; }
.flow-step {
  display: flex;
  align-items: center;
  gap: 16px;
}
.flow-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--navy);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}
.flow-content strong { display: block; color: var(--navy); font-size: 15px; }
.flow-content span { font-size: 13px; color: var(--text-light); }
.flow-line {
  width: 2px;
  height: 24px;
  background: var(--border);
  margin-left: 17px;
}

/* ── Pillars ── */
.pillar-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.pillar-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 32px 24px;
  color: rgba(255,255,255,0.85);
  transition: transform 0.2s, background 0.2s;
}
.pillar-card:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.12);
}
.pillar-icon {
  font-size: 32px;
  margin-bottom: 16px;
}
.pillar-card h3 {
  font-family: 'Playfair Display', serif;
  color: white;
  font-size: 20px;
  margin-bottom: 12px;
}
.pillar-card p { font-size: 15px; line-height: 1.6; }

/* ── Impact ── */
.impact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.impact-card {
  text-align: center;
  padding: 28px 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.impact-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gold);
  background: rgba(212,168,83,0.1);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.impact-number {
  font-family: 'Playfair Display', serif;
  font-size: 48px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}
.impact-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin: 8px 0 12px;
}
.impact-card p { font-size: 14px; color: var(--text-light); }

/* ── Board ── */
.board-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.board-card {
  text-align: center;
  padding: 40px 32px;
  background: var(--bg-subtle);
  border-radius: 12px;
}
.board-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--navy);
  color: white;
  font-family: 'Playfair Display', serif;
  font-size: 24px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.board-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 4px;
}
.board-role {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.board-card p { font-size: 15px; color: var(--text-light); max-width: 380px; margin: 0 auto; }

/* ── About ── */
.about-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 48px; align-items: start; }
.about-text p { margin-bottom: 16px; color: var(--text-light); font-size: 16px; line-height: 1.7; }
.about-sidebar {
  background: white;
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.about-sidebar h3 {
  font-family: 'Playfair Display', serif;
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gold);
}
.detail-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.detail-row:last-child { border-bottom: none; }
.detail-row span { color: var(--text-light); }
.detail-row strong { color: var(--text); font-weight: 600; text-align: right; }

/* ── Get Involved ── */
.involve-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.involve-card {
  text-align: center;
  padding: 36px 28px;
  background: var(--bg-subtle);
  border-radius: 12px;
  transition: transform 0.2s;
}
.involve-card:hover { transform: translateY(-4px); }
.involve-icon { font-size: 36px; margin-bottom: 16px; }
.involve-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 20px;
  color: var(--navy);
  margin-bottom: 12px;
}
.involve-card p { font-size: 15px; color: var(--text-light); margin-bottom: 20px; }

/* ── Article list (homepage + blog) ── */
.article-list { display: flex; flex-direction: column; gap: 32px; margin-bottom: 48px; }
.article-card { padding: 24px 0; border-bottom: 1px solid var(--border); }
.article-card h2, .article-card h3 { margin: 8px 0; }
.article-card h2 a, .article-card h3 a {
  color: var(--navy);
  text-decoration: none;
  font-family: 'Playfair Display', serif;
  font-size: 22px;
}
.article-card h2 a:hover, .article-card h3 a:hover { color: var(--navy-light); }
.article-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  color: var(--text-light);
}
.category {
  background: var(--bg-alt);
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.article-summary { color: var(--text-light); font-size: 15px; margin-top: 8px; }
.read-more { color: var(--navy-light); font-size: 14px; font-weight: 500; text-decoration: none; }
.empty-state { color: var(--text-light); font-style: italic; padding: 40px 0; }

/* ── Single article ── */
.article-single { padding: 48px 0; }
.article-single .container { max-width: 800px; }
.article-header { margin-bottom: 40px; }
.article-header h1 {
  font-family: 'Playfair Display', serif;
  font-size: 34px;
  color: var(--navy);
  line-height: 1.3;
  margin: 16px 0;
}
.article-lead { font-size: 19px; color: var(--text-light); line-height: 1.6; }
.source { color: var(--gold-light); font-size: 12px; }
.article-body { font-size: 17px; line-height: 1.8; }
.article-body h2 { font-family: 'Playfair Display', serif; color: var(--navy); margin: 36px 0 16px; font-size: 24px; }
.article-body h3 { color: var(--navy); margin: 28px 0 12px; font-size: 20px; }
.article-body p { margin-bottom: 20px; }
.article-body ul, .article-body ol { margin: 16px 0 20px 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 3px solid var(--gold);
  padding: 12px 20px;
  margin: 24px 0;
  background: var(--bg-subtle);
  font-style: italic;
  color: var(--text-light);
}
.article-tags { margin: 40px 0 20px; }
.tag { color: var(--navy-light); font-size: 14px; text-decoration: none; margin-right: 8px; }
.article-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-light);
}
.article-footer a { color: var(--navy-light); }

/* ── Page layout ── */
.page-narrow { max-width: 1000px; }
.breadcrumb {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--navy-light); text-decoration: none; }
.breadcrumb span { margin: 0 6px; opacity: 0.4; }
.page-title {
  font-family: 'Playfair Display', serif;
  font-size: 36px;
  color: var(--navy);
  margin-bottom: 12px;
}
.page-lead {
  font-size: 18px;
  color: var(--text-light);
  line-height: 1.6;
  max-width: 640px;
}

/* ── Involve layout (content + form sidebar) ── */
.involve-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}
.involve-content { font-size: 16px; }
.involve-content h2 { font-family: 'Playfair Display', serif; color: var(--navy); margin: 32px 0 14px; font-size: 24px; }
.involve-content h3 { color: var(--navy); margin: 24px 0 10px; font-size: 18px; }
.involve-content p { margin-bottom: 16px; color: var(--text-light); line-height: 1.7; }
.involve-content ul, .involve-content ol { margin: 12px 0 16px 20px; color: var(--text-light); }
.involve-content li { margin-bottom: 6px; }
.involve-content table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.involve-content th { background: var(--bg-subtle); text-align: left; padding: 10px 12px; font-weight: 600; border-bottom: 2px solid var(--border); }
.involve-content td { padding: 10px 12px; border-bottom: 1px solid var(--border); }

/* ── Form card ── */
.form-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
  position: sticky;
  top: 88px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.form-card-title {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gold);
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.req { color: var(--gold); }
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  background: var(--bg-subtle);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy-light);
  box-shadow: 0 0 0 3px rgba(42,74,127,0.1);
}
.form-group select { cursor: pointer; }
.checkbox-group { display: flex; flex-direction: column; gap: 8px; }
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: var(--text-light);
  cursor: pointer;
}
.checkbox-label input { margin-top: 3px; accent-color: var(--navy); }
.btn-full { width: 100%; text-align: center; margin-top: 8px; }
.btn-full:disabled { opacity: 0.6; cursor: not-allowed; }
.form-status {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  margin-top: 12px;
  text-align: center;
}
.form-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.form-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.form-privacy {
  font-size: 12px;
  color: var(--text-light);
  text-align: center;
  margin-top: 12px;
  opacity: 0.7;
}

@media (max-width: 900px) {
  .involve-layout { grid-template-columns: 1fr; }
  .form-card { position: static; }
}

/* ── Events ── */
.event-type-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gold);
  background: rgba(212,168,83,0.1);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.event-details-card {
  background: var(--bg-subtle);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 32px;
  border-left: 3px solid var(--gold);
}
.event-detail {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}
.event-detail:last-child { border-bottom: none; }
.event-detail strong { color: var(--navy); min-width: 100px; }
.event-detail span { color: var(--text-light); text-align: right; }

/* ── Newsletter ── */
.newsletter-section { background: var(--navy); padding: 56px 0; }
.newsletter-card {
  display: flex;
  align-items: center;
  gap: 48px;
}
.newsletter-text h2 {
  font-family: 'Playfair Display', serif;
  color: white;
  font-size: 26px;
  margin-bottom: 8px;
}
.newsletter-text p { color: rgba(255,255,255,0.7); font-size: 15px; max-width: 380px; }
.newsletter-form { flex: 1; }
.newsletter-inputs { display: flex; gap: 10px; }
.nl-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  color: white;
  font-size: 15px;
  font-family: inherit;
}
.nl-input::placeholder { color: rgba(255,255,255,0.4); }
.nl-input:focus { outline: none; border-color: var(--gold); }
.nl-btn { white-space: nowrap; flex-shrink: 0; }
.nl-privacy { font-size: 12px; color: rgba(255,255,255,0.35); margin-top: 10px; }

@media (max-width: 900px) {
  .newsletter-card { flex-direction: column; text-align: center; gap: 24px; }
  .newsletter-text p { max-width: 100%; }
  .newsletter-inputs { flex-direction: column; }
}

/* ── Donate ── */
.donate-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 36px;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
  margin-bottom: 48px;
}
.donate-heading {
  font-family: 'Playfair Display', serif;
  font-size: 28px;
  color: var(--navy);
  margin-bottom: 8px;
}
.donate-sub { color: var(--text-light); font-size: 15px; margin-bottom: 28px; }
.donate-amounts { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.donate-amt {
  padding: 12px 24px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: white;
  font-size: 16px;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.donate-amt:hover { border-color: var(--navy-light); }
.donate-amt.selected {
  border-color: var(--navy);
  background: var(--navy);
  color: white;
}
.donate-custom { margin-bottom: 24px; }
.donate-custom label { display: block; font-size: 13px; color: var(--text-light); margin-bottom: 8px; }
.donate-input-wrap {
  display: flex;
  align-items: center;
  max-width: 200px;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.donate-currency {
  padding: 10px 12px;
  background: var(--bg-subtle);
  font-weight: 600;
  color: var(--text-light);
  border-right: 1px solid var(--border);
}
.donate-input {
  border: none;
  padding: 10px 14px;
  font-size: 16px;
  width: 100%;
  font-family: inherit;
  outline: none;
}
.donate-btn { max-width: 300px; margin: 0 auto; font-size: 17px; padding: 16px 40px; }
.donate-legal { font-size: 12px; color: var(--text-light); margin-top: 16px; opacity: 0.7; }
.donate-impact { margin-bottom: 48px; }
.impact-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.impact-item {
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-subtle);
  border-radius: 12px;
}
.impact-amt {
  font-family: 'Playfair Display', serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.impact-item p { font-size: 14px; color: var(--text-light); }

@media (max-width: 640px) {
  .impact-row { grid-template-columns: repeat(2, 1fr); }
  .donate-amounts { gap: 8px; }
  .donate-amt { padding: 10px 18px; font-size: 14px; }
}

/* Section intro (blog list) */
.section-intro { margin-bottom: 32px; color: var(--text-light); }

/* ── Footer ── */
.site-footer {
  background: #0f1f35;
  color: rgba(255,255,255,0.65);
  padding: 56px 0 28px;
  margin-top: 0;
  font-size: 14px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  margin-bottom: 36px;
}
.footer-brand { max-width: 360px; }
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-bottom: 12px;
}
.footer-logo svg {
  flex-shrink: 0;
  filter: brightness(1.3);
}
.footer-logo span {
  color: white;
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 17px;
}
.footer-tagline { font-style: italic; margin-bottom: 8px; color: var(--gold); font-size: 14px; }
.footer-mission { font-size: 13px; line-height: 1.6; margin-bottom: 16px; }
.footer-social {
  display: flex;
  gap: 14px;
}
.footer-social a {
  color: rgba(255,255,255,0.4);
  transition: color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.12);
  transition: all 0.2s;
}
.footer-social a:hover {
  color: var(--gold-light);
  border-color: var(--gold);
  background: rgba(212,168,83,0.1);
}
.footer-cols { display: flex; gap: 48px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 {
  color: white;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 4px;
  font-weight: 600;
}
.footer-col a { color: rgba(255,255,255,0.6); text-decoration: none; font-size: 14px; transition: color 0.2s; }
.footer-col a:hover { color: var(--gold-light); }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-legal { font-size: 12px; color: rgba(255,255,255,0.4); }
.footer-copyright { font-size: 12px; color: rgba(255,255,255,0.3); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .stat-grid, .pillar-grid, .involve-grid { grid-template-columns: 1fr; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
  .mission-grid, .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .board-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}

@media (max-width: 640px) {
  body { padding-top: 56px; }
  .hero { padding: 60px 0; }
  .hero h1 { font-size: 26px; }
  .section { padding: 48px 0; }
  .section-title { font-size: 26px; }
  .impact-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; gap: 32px; }
  .footer-cols { gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 16px 24px;
    gap: 12px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }
  .nav-links.nav-open { display: flex; }
  .nav-toggle { display: flex; }
  .nav-cta { text-align: center; }
}