/* Shared styles for Three Rivers Explorers program pages
   Matches Landing Page.html — navy / forest-green / gold on cream. */
:root {
  --navy: #15233f;
  --navy-deep: #0e1830;
  --green: #4f5a23;
  --green-bright: #61702c;
  --gold: #e0a52c;
  --paper: #f5f1e6;
  --muted: #6f7689;
  --body: #2b3349;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Architects Daughter", "Kalam", cursive;
  color: var(--navy);
  background: var(--paper);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: "Caveat", cursive; font-weight: 700; line-height: 1; }
.mono { font-family: "JetBrains Mono", ui-monospace, monospace; text-transform: uppercase; letter-spacing: 0.15em; }
a { color: inherit; text-decoration: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border: 2px solid var(--navy); border-radius: 8px; padding: 12px 20px;
  background: #fff; font-family: "Architects Daughter", cursive; font-size: 16px;
  cursor: pointer; box-shadow: 3px 3px 0 var(--navy);
  transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { transform: translate(-1px,-1px); box-shadow: 5px 5px 0 var(--navy); }
.btn:active { transform: translate(2px,2px); box-shadow: 1px 1px 0 var(--navy); }
.btn.accent { background: var(--green); color: #fff; border-color: var(--navy); }
.btn.accent:hover { background: var(--green-bright); }
.btn.gold { background: var(--gold); color: var(--navy); border-color: var(--navy); }
.btn.sm { padding: 7px 15px; font-size: 13px; }

/* ---------- Top nav ---------- */
header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px clamp(16px, 4vw, 48px);
  background: var(--navy); color: var(--paper);
  border-bottom: 2px solid var(--gold);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 46px; width: 46px; border-radius: 50%; display: block; }
.brand .wordmark { font-family: "Caveat", cursive; font-size: 26px; font-weight: 700; line-height: .9; }
.brand .wordmark small { display: block; font-family: "JetBrains Mono", monospace; font-size: 10px; letter-spacing: 0.22em; font-weight: 400; opacity: 0.75; margin-top: 2px; }
nav.links { display: flex; gap: clamp(14px, 2.4vw, 28px); }
nav.links a { font-family: "JetBrains Mono", monospace; font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; padding-bottom: 3px; border-bottom: 1.5px solid transparent; }
nav.links a:hover, nav.links a[aria-current="page"] { border-bottom-color: var(--gold); }
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.php-hero {
  position: relative; color: var(--paper);
  background: radial-gradient(ellipse at 50% -10%, #1d3057 0%, var(--navy) 45%, var(--navy-deep) 100%);
  padding: clamp(24px, 4vw, 44px) clamp(20px, 4vw, 48px) clamp(36px, 5vw, 60px);
  overflow: hidden;
}
.php-hero::before {
  content: ""; position: absolute; inset: 0; opacity: 0.10; pointer-events: none;
  background-image:
    repeating-radial-gradient(circle at 18% 30%, transparent 0 38px, rgba(224,165,44,0.6) 38px 39px, transparent 39px 80px),
    repeating-radial-gradient(circle at 84% 72%, transparent 0 46px, rgba(245,241,230,0.5) 46px 47px, transparent 47px 96px);
}
.php-hero-inner { position: relative; z-index: 2; max-width: 1180px; margin: 0 auto; }
.crumb { font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(245,241,230,0.7); margin-bottom: 20px; }
.crumb a:hover { color: var(--gold); }
.php-hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(24px, 4vw, 48px); align-items: center; }
.pills { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.pill { display: inline-flex; align-items: center; border: 1.5px solid currentColor; border-radius: 999px; padding: 5px 13px; font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.pill.solid { background: var(--green); border-color: var(--green); color: #fff; }
.php-hero h1 { font-size: clamp(56px, 9vw, 104px); letter-spacing: -0.01em; margin-bottom: 12px; text-wrap: balance; }
.php-tagline { font-family: "Caveat", cursive; font-size: clamp(26px, 3vw, 34px); color: var(--gold); margin-bottom: 16px; line-height: 1; }
.php-hero p { font-size: clamp(15px, 1.7vw, 18px); color: rgba(245,241,230,0.88); max-width: 50ch; margin-bottom: 22px; }
.php-hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.php-hero-photo {
  width: 100%; aspect-ratio: 4 / 3; border-radius: 12px; border: 3px solid var(--paper);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4);
  object-fit: cover; display: block; background: #243450;
}

/* ---------- Generic section ---------- */
.section { max-width: 1180px; margin: 0 auto; padding: clamp(36px, 5vw, 60px) clamp(20px, 4vw, 48px); }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 24px; padding-bottom: 12px; border-bottom: 1.5px solid var(--navy); }
.section-head .mono { font-size: 11px; letter-spacing: 0.2em; color: var(--green); }
.section-head h2 { font-size: clamp(34px, 4.5vw, 48px); }
.section-head .note { font-family: "JetBrains Mono", monospace; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }

/* About */
.about { max-width: 1180px; margin: 0 auto; padding: clamp(28px, 4vw, 44px) clamp(20px, 4vw, 48px) 0; }
.about p { font-size: clamp(17px, 2vw, 21px); line-height: 1.55; max-width: 64ch; color: var(--body); }

/* Events */
.events { display: grid; grid-template-columns: 1fr 1fr; gap: 0 clamp(24px, 3vw, 40px); }
.event { display: flex; gap: 16px; padding: 16px 0; border-top: 1.5px dashed #c8c0aa; }
.event:nth-child(1), .event:nth-child(2) { border-top: 1.5px solid var(--navy); }
.event .chip { width: 56px; flex-shrink: 0; height: fit-content; text-align: center; padding: 6px 0; border: 1.5px solid var(--green); border-radius: 6px; background: #fff; }
.event .chip span { font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.08em; color: var(--green); }
.event h3 { font-size: 26px; margin-bottom: 2px; }
.event .kind { font-family: "JetBrains Mono", monospace; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 5px; }
.event p { font-size: 14px; color: var(--body); line-height: 1.4; }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; grid-template-rows: 200px 200px; gap: 12px; }
.gallery-grid .shot {
  width: 100%; height: 100%; border-radius: 8px; border: 1.5px solid var(--muted);
  object-fit: cover; display: block; background: #e4ddc9;
}
.gallery-grid .shot.big { grid-row: span 2; }

/* Other programs */
.siblings { background: #ece4d2; }
.siblings-inner { max-width: 1180px; margin: 0 auto; padding: clamp(32px, 4vw, 48px) clamp(20px, 4vw, 48px); }
.siblings h2 { font-size: clamp(30px, 4vw, 40px); margin-bottom: 20px; }
.sib-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.sib { border: 1.5px solid var(--navy); border-radius: 10px; padding: 16px; background: var(--paper); transition: transform .15s ease, box-shadow .15s ease; }
.sib:hover { transform: translateY(-3px); box-shadow: 4px 6px 0 var(--navy); }
.sib h3 { font-size: 28px; margin-bottom: 3px; }
.sib .meta { font-family: "JetBrains Mono", monospace; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--green); margin-bottom: 8px; }
.sib .more { font-family: "JetBrains Mono", monospace; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; border-bottom: 1.5px solid var(--gold); padding-bottom: 1px; }

/* Footer */
footer {
  background: var(--navy); color: var(--paper);
  padding: clamp(30px, 4vw, 48px) clamp(20px, 4vw, 48px);
  display: flex; gap: 24px; justify-content: space-between; align-items: center; flex-wrap: wrap;
  border-top: 2px solid var(--gold);
}
footer .eyebrow2 { font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.2em; color: var(--gold); margin-bottom: 8px; text-transform: uppercase; }
footer h2 { font-size: clamp(36px, 5vw, 52px); }
footer .contact { font-size: 14px; color: rgba(245,241,230,0.8); margin-top: 8px; }
footer .contact a { border-bottom: 1.5px solid var(--green-bright); }

/* Responsive */
@media (max-width: 860px) {
  .php-hero-grid { grid-template-columns: 1fr; }
  .php-hero-photo { order: -1; max-height: 340px; }
  .events { grid-template-columns: 1fr; }
  .event:nth-child(2) { border-top: 1.5px dashed #c8c0aa; }
  .sib-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; grid-template-rows: 160px 160px 160px; }
  .gallery-grid .shot.big { grid-row: span 2; grid-column: span 2; }
}
@media (max-width: 720px) {
  nav.links { display: none; }
  nav.links.open { display: flex; flex-direction: column; gap: 16px; position: absolute; top: 100%; right: clamp(16px,4vw,48px); background: var(--navy); padding: 18px 22px; border-radius: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.4); border: 1px solid var(--gold); }
  .nav-toggle { display: inline-flex; background: none; border: 1.5px solid currentColor; color: inherit; border-radius: 6px; padding: 6px 10px; cursor: pointer; font-family: "JetBrains Mono", monospace; font-size: 11px; letter-spacing: 0.1em; }
  header .btn { display: none; }
}
@media (max-width: 480px) {
  .php-hero-cta .btn { width: 100%; justify-content: center; }
  .gallery-grid { grid-template-columns: 1fr; grid-template-rows: none; grid-auto-rows: 150px; }
  .gallery-grid .shot.big { grid-column: auto; }
}