:root {
  --brand-950: #012d4d;
  --brand-900: #01385f;
  --brand-800: #014c85;
  --brand-700: #05639e;
  --ink: #0f172a;
  --muted: #526277;
  --line: #dbe5ed;
  --soft: #f2f7fb;
  --paper: #fff;
  --success: #16794b;
  --warning: #9a5b08;
  --danger: #b42318;
  --shadow: 0 12px 34px rgba(15, 23, 42, 0.09);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: #f7fafc;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a { color: var(--brand-800); }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

:focus-visible {
  outline: 3px solid rgba(5, 99, 158, 0.28);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.header-wrap,
.container,
.footer-wrap {
  width: min(1200px, calc(100% - 32px));
  margin-inline: auto;
}

.header-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand img { width: 52px; height: 52px; object-fit: contain; }
.brand strong, .brand small { display: block; }
.brand strong { color: var(--brand-800); font-size: 1.2rem; }
.brand small { color: var(--muted); font-size: 0.75rem; }

.primary { margin-left: auto; }
.menu { display: flex; gap: 5px; align-items: center; }
.menu a, .menu button {
  display: inline-flex;
  border: 0;
  border-radius: 9px;
  padding: 9px 11px;
  color: var(--ink);
  background: transparent;
  text-decoration: none;
  cursor: pointer;
}
.menu a:hover, .menu button:hover, .menu a.active { background: #eaf3f9; }
.has-sub { position: relative; }
.submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 250px;
  padding: 6px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.submenu a { display: block; }
.has-sub:hover .submenu, .has-sub:focus-within .submenu { display: block; }
.hamb { display: none; margin-left: auto; border: 0; background: transparent; cursor: pointer; }

.hero {
  padding: 54px 0 38px;
  color: #fff;
  background: linear-gradient(135deg, var(--brand-950), var(--brand-700));
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.55fr);
  gap: 30px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.hero h1 { margin: 0; font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.08; }
.hero p { max-width: 760px; margin: 14px 0 0; color: #e5f0f7; font-size: 1.04rem; }
.hero-nav { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
.hero-nav a {
  padding: 8px 12px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  text-decoration: none;
}
.hero-nav a:hover { background: rgba(255, 255, 255, 0.12); }
.hero-seal { width: min(210px, 62%); margin-inline: auto; filter: drop-shadow(0 14px 24px rgba(0,0,0,.24)); }

main { padding: 34px 0 56px; }
.section { padding: 28px 0; scroll-margin-top: 90px; }
.section + .section { border-top: 1px solid var(--line); }
.section-heading { display: flex; gap: 18px; justify-content: space-between; align-items: end; margin-bottom: 17px; }
.section-heading h2 { margin: 0; color: var(--brand-900); font-size: clamp(1.35rem, 3vw, 1.85rem); }
.section-heading p { max-width: 760px; margin: 5px 0 0; color: var(--muted); }
.status-line { min-height: 22px; margin: 8px 0 0; color: var(--muted); font-size: 0.88rem; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  min-width: 0;
  padding: 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 15px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 7px; color: var(--brand-900); font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); }
.card-meta { display: flex; flex-wrap: wrap; gap: 7px; margin: 11px 0; }
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 3px 9px;
  color: #334155;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
}
.badge.current, .badge.valid { color: var(--success); background: #ecfdf3; border-color: #b7e8ce; }
.badge.expiring { color: var(--warning); background: #fff8e6; border-color: #f5d697; }
.badge.expired { color: var(--danger); background: #fff1f0; border-color: #f3c1bd; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 39px;
  padding: 8px 12px;
  border: 1px solid #bfd2e1;
  border-radius: 9px;
  color: var(--brand-900);
  background: #fff;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}
.button:hover { background: #edf5fa; }
.button-primary { color: #fff; background: var(--brand-800); border-color: var(--brand-800); }
.button-primary:hover { background: var(--brand-700); }

.publication-group + .publication-group { margin-top: 18px; }
.publication-group > h3 { margin: 0 0 10px; color: #263b4c; font-size: 1rem; }
.empty {
  padding: 16px;
  color: var(--muted);
  background: #fff;
  border: 1px dashed #b7c7d4;
  border-radius: 12px;
}

.collegiate {
  overflow: hidden;
  padding: 0;
}
.collegiate > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding: 17px 18px;
  color: var(--brand-900);
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}
.collegiate > summary::-webkit-details-marker { display: none; }
.collegiate > summary::after { content: "+"; font-size: 1.4rem; }
.collegiate[open] > summary::after { content: "−"; }
.collegiate-content { padding: 0 18px 18px; border-top: 1px solid var(--line); }
.collegiate-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 15px 0; }
.collegiate-head p { margin: 0; }
.members { display: grid; grid-template-columns: repeat(auto-fit, minmax(185px, 1fr)); gap: 12px; }
.member { display: grid; grid-template-columns: 64px 1fr; gap: 10px; align-items: center; padding: 10px; border: 1px solid var(--line); border-radius: 11px; }
.member img { width: 64px; height: 76px; border-radius: 8px; object-fit: cover; background: var(--soft); }
.member strong, .member span { display: block; }
.member span { color: var(--muted); font-size: 0.85rem; }
.agenda { margin-top: 18px; }
.year-buttons { display: flex; flex-wrap: wrap; gap: 8px; margin: 9px 0 12px; }
.year-button { padding: 7px 11px; border: 1px solid var(--line); border-radius: 8px; background: #fff; cursor: pointer; }
.year-button.active { color: #fff; background: var(--brand-800); border-color: var(--brand-800); }
.meeting-list { display: grid; gap: 9px; }
.meeting { padding: 12px; border-left: 4px solid var(--brand-700); background: var(--soft); border-radius: 8px; }
.meeting strong { color: var(--brand-900); }
.meeting p { margin: 5px 0 0; }

.video-card { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(240px, .65fr); gap: 18px; }
.video-placeholder, .video-frame { width: 100%; aspect-ratio: 16 / 9; border: 0; border-radius: 12px; }
.video-placeholder { display: grid; place-items: center; padding: 20px; color: #fff; background: linear-gradient(135deg, var(--brand-950), var(--brand-700)); cursor: pointer; }
.video-placeholder span { font-weight: 800; text-align: center; }

.external-card { border-top: 4px solid var(--brand-700); }

.document-dialog {
  width: min(1000px, calc(100% - 28px));
  padding: 0;
  border: 0;
  border-radius: 16px;
  box-shadow: 0 24px 70px rgba(0,0,0,.25);
}
.document-dialog::backdrop { background: rgba(2, 8, 23, .7); }
.dialog-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 13px 16px; border-bottom: 1px solid var(--line); }
.dialog-head strong { color: var(--brand-900); }
.dialog-close { border: 0; background: transparent; font-size: 1.6rem; cursor: pointer; }
.document-frame { display: block; width: 100%; height: min(78vh, 800px); border: 0; }
.certificate-feature { overflow: hidden; }
.certificate-feature .document-frame { min-height: 720px; border: 1px solid var(--line); border-radius: 12px; }
.dialog-actions { padding: 11px 16px; border-top: 1px solid var(--line); }

.site-footer { padding: 22px 0; color: #d5e0e7; background: #0d2636; }
.footer-wrap { display: flex; justify-content: space-between; gap: 18px; align-items: center; }
.footer-wrap a { color: #fff; }

@media (max-width: 900px) {
  .hamb { display: inline-grid; place-items: center; }
  .primary { position: relative; margin-left: 0; }
  .menu { display: none; position: absolute; top: 30px; right: 0; z-index: 110; min-width: 280px; padding: 8px; flex-direction: column; align-items: stretch; background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); }
  .menu.show { display: flex; }
  .submenu { position: static; box-shadow: none; border: 0; padding-left: 10px; }
  .has-sub.open .submenu { display: block; }
  .hero-grid, .video-card { grid-template-columns: 1fr; }
  .hero-seal { width: 150px; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 650px) {
  .header-wrap { width: min(100% - 22px, 1200px); }
  .brand small { display: none; }
  .brand strong { font-size: 1rem; }
  .brand img { width: 44px; height: 44px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .hero { padding-top: 36px; }
  .section-heading { align-items: start; flex-direction: column; }
  .footer-wrap { align-items: flex-start; flex-direction: column; }
  .document-frame { height: 68vh; }
}