:root {
  --navy: #0b2e4f;
  --navy-dark: #071f38;
  --teal: #0f7a72;
  --teal-light: #14a89b;
  --sand: #f6f4ee;
  --white: #ffffff;
  --ink: #1a2b34;
  --muted: #5c6b74;
  --radius: 10px;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}

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

h1, h2, h3 {
  line-height: 1.2;
  font-weight: 700;
  margin: 0 0 0.5em;
}

h2 {
  font-size: 1.8rem;
  color: var(--navy);
}

a {
  color: var(--teal);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--navy);
  color: var(--white);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
}

.brand-icon {
  width: 28px;
  height: 28px;
  color: var(--teal-light);
}

.site-nav {
  display: flex;
  gap: 24px;
}

.site-nav a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  opacity: 0.9;
}

.site-nav a:hover {
  opacity: 1;
  text-decoration: underline;
}

/* Hero */

.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 60%, var(--teal) 140%);
  color: var(--white);
  padding: 90px 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--white);
}

.hero .lede {
  max-width: 640px;
  margin: 0 auto 2rem;
  font-size: 1.15rem;
  color: #dce9ec;
}

.cta-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--teal-light);
  color: var(--navy-dark);
}

.btn-primary:hover {
  box-shadow: 0 6px 16px rgba(20, 168, 155, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

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

/* About */

.about {
  padding: 64px 24px;
  max-width: 780px;
}

.about p {
  color: var(--muted);
  font-size: 1.05rem;
}

/* Sections */

.sections {
  padding: 24px 24px 72px;
}

.section-intro {
  color: var(--muted);
  margin-top: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.card {
  background: var(--sand);
  border-radius: var(--radius);
  padding: 24px;
  border-top: 4px solid var(--teal-light);
}

.card h3 {
  color: var(--navy);
  font-size: 1.25rem;
}

.card .age {
  color: var(--teal);
  font-weight: 600;
  margin: 0 0 0.75em;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.card p:last-child {
  color: var(--muted);
  margin-bottom: 0;
}

.section-note {
  margin-top: 32px;
  color: var(--muted);
  font-style: italic;
}

/* Join */

.join {
  background: var(--sand);
  padding: 64px 0;
  text-align: center;
}

.join-inner {
  max-width: 640px;
}

.join p {
  color: var(--muted);
  font-size: 1.05rem;
}

/* Contact */

.contact {
  padding: 64px 24px 80px;
  text-align: center;
}

.contact p {
  color: var(--muted);
}

.contact .location {
  margin-top: 20px;
  font-size: 0.95rem;
}

/* Footer */

.site-footer {
  background: var(--navy-dark);
  color: #b9c6cc;
  padding: 28px 0;
  font-size: 0.9rem;
}

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

.site-footer a {
  color: var(--teal-light);
}

/* Responsive */

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    gap: 10px;
  }

  .site-nav {
    gap: 18px;
  }

  .hero {
    padding: 64px 0;
  }
}