/* NDU Digital Library portal — static skeleton.
   Tokens first; everything derives from them. */

:root {
  /* Palette derived from the official NDU crest (ndu.edu.gh/website/ndulogo.png):
     ribbon gold #DBBA08, crest green #315832, crest red #BD2327 */
  --paper: #f7f6f1;
  --ink: #1c201b;
  --ink-soft: #4c544c;
  --green-deep: #1d3620;
  --green: #2c4f2e;
  --green-wash: #e8ede6;
  --gold: #dbba08;
  --gold-soft: #f0e6b8;
  --flag-red: #bd2327;
  --flag-gold: #dbba08;
  --flag-green: #315832;
  --line: #d8d6cc;

  --serif: "Spectral", Georgia, "Times New Roman", serif;
  --sans: "Public Sans", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", Menlo, Consolas, monospace;

  --measure: 62ch;
  --pad: clamp(1.1rem, 4vw, 2.5rem);
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rise { animation: none !important; }
}

body {
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--gold); color: var(--green-deep);
  padding: .5rem 1rem; z-index: 10; font-weight: 600;
}
.skip-link:focus { left: 0; }

a { color: var(--green); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.wrap { max-width: 68rem; margin: 0 auto; padding-inline: var(--pad); }

/* ---------- masthead ---------- */
.masthead { background: var(--paper); }
.masthead-inner {
  display: flex; align-items: center; gap: .9rem;
  padding-block: 1rem .9rem;
}
.crest {
  flex: none;
  width: 52px; height: auto;
  display: block;
}
.lockup .org {
  font-family: var(--mono); font-size: .68rem;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--ink-soft);
}
.lockup .name {
  font-family: var(--serif); font-weight: 600;
  font-size: 1.25rem; line-height: 1.2; color: var(--green-deep);
}
.mast-links {
  margin-left: auto; display: flex; gap: 1.1rem;
  font-size: .85rem; font-weight: 600;
}
.mast-links a { color: var(--green-deep); text-decoration: none; }
.mast-links a:hover { color: var(--green); text-decoration: underline; }

/* Signature: the colours — Ghana tricolour hairline */
.colours { display: flex; height: 4px; }
.colours span { flex: 1; }
.colours .r { background: var(--flag-red); }
.colours .g { background: var(--flag-gold); }
.colours .n { background: var(--flag-green); }

/* ---------- hero ---------- */
.hero {
  background:
    radial-gradient(120% 140% at 85% -20%, #35633a 0%, var(--green-deep) 55%);
  color: #f2f1e8;
  padding-block: clamp(2.6rem, 7vw, 4.6rem) clamp(2.8rem, 7vw, 4.8rem);
}
.hero .eyebrow {
  font-family: var(--mono); font-size: .72rem;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--gold);
}
.hero h1 {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(2.1rem, 5.4vw, 3.4rem);
  line-height: 1.08; margin-top: .55rem;
  max-width: 24ch;
}
.hero p.lede {
  margin-top: 1rem; max-width: var(--measure);
  color: #cfd6cb; font-size: 1.02rem;
}

.rise { animation: rise .6s ease-out both; }
.rise.d1 { animation-delay: .08s; }
.rise.d2 { animation-delay: .16s; }
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

/* search */
.search { margin-top: 1.9rem; max-width: 44rem; }
.scopes { display: flex; gap: .45rem; margin-bottom: .65rem; flex-wrap: wrap; }
.scopes label {
  font-family: var(--mono); font-size: .72rem;
  letter-spacing: .1em; text-transform: uppercase;
  border: 1px solid rgba(242, 241, 232, .35);
  color: #e6e5da;
  padding: .34rem .8rem; border-radius: 999px; cursor: pointer;
  display: inline-flex; align-items: center; gap: .4rem;
}
.scopes input { accent-color: var(--gold); }
.scopes label:has(input:checked) {
  background: var(--gold); border-color: var(--gold);
  color: var(--green-deep); font-weight: 600;
}
.searchbar { display: flex; }
.searchbar input[type="search"] {
  flex: 1; min-width: 0;
  font: 1.05rem/1.2 var(--sans);
  padding: .95rem 1.1rem;
  border: 2px solid var(--gold);
  border-right: none;
  border-radius: 3px 0 0 3px;
  background: #fdfcf7; color: var(--ink);
}
.searchbar button {
  font: 600 .95rem var(--sans);
  padding: .95rem 1.5rem;
  border: 2px solid var(--gold);
  border-radius: 0 3px 3px 0;
  background: var(--gold); color: var(--green-deep);
  cursor: pointer;
}
.searchbar button:hover { background: #e9cc2a; }
.search .hint {
  margin-top: .6rem; font-size: .8rem; color: #a8b3a5;
}
.search .hint a { color: #d9cf9d; }

/* ---------- services ---------- */
.services { padding-block: clamp(2.2rem, 6vw, 3.6rem) 1rem; }
.section-label {
  font-family: var(--mono); font-size: .72rem;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-soft);
  display: flex; align-items: center; gap: .8rem;
}
.section-label::after {
  content: ""; flex: 1; height: 1px; background: var(--line);
}
.tiles {
  margin-top: 1.4rem;
  display: grid; gap: 1rem;
  grid-template-columns: repeat(4, 1fr);
}
.tile {
  display: block; text-decoration: none; color: inherit;
  background: #fdfcf7;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 1.15rem 1.15rem 1.25rem;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.tile:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: 0 10px 24px rgba(18, 43, 29, .12);
}
.tile .svc, .spotlight .svc {
  font-family: var(--mono); font-size: .66rem;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--green);
  display: flex; align-items: center; gap: .5rem;
}
.tile .svc::before, .spotlight .svc::before {
  content: ""; width: 1.1rem; height: 2px; background: var(--gold);
}
.tile h3 {
  font-family: var(--serif); font-weight: 600;
  font-size: 1.18rem; line-height: 1.25; margin-top: .45rem;
  color: var(--green-deep);
}
.tile p { margin-top: .5rem; font-size: .88rem; color: var(--ink-soft); }
.tile .go {
  display: inline-block; margin-top: .8rem;
  font-size: .85rem; font-weight: 600; color: var(--green);
}

/* ---------- bulletin ---------- */
.bulletin { padding-block: clamp(1.8rem, 5vw, 3rem) clamp(2.4rem, 6vw, 3.8rem); }
.bulletin-grid {
  margin-top: 1.4rem;
  display: grid; gap: 2.2rem;
  grid-template-columns: 1.5fr 1fr;
}
.notices { list-style: none; }
.notices li {
  display: flex; gap: .85rem;
  padding-block: .9rem;
  border-bottom: 1px solid var(--line);
}
.notices li:first-child { padding-top: 0; }
.star { flex: none; color: var(--ink); font-size: .8rem; padding-top: .35rem; }
.notices .date {
  font-family: var(--mono); font-size: .7rem;
  letter-spacing: .08em; color: var(--ink-soft);
}
.notices h3 { font-size: .98rem; font-weight: 600; margin-top: .1rem; }
.notices p { font-size: .88rem; color: var(--ink-soft); margin-top: .15rem; max-width: 52ch; }

.spotlight {
  background: var(--green-wash);
  border: 1px solid #cbd8cb;
  border-radius: 4px;
  padding: 1.3rem 1.3rem 1.4rem;
  align-self: start;
}
.spotlight .svc {
  font-family: var(--mono); font-size: .66rem;
  letter-spacing: .16em; text-transform: uppercase; color: var(--green);
}
.spotlight h3 {
  font-family: var(--serif); font-size: 1.25rem; font-weight: 600;
  color: var(--green-deep); margin-top: .5rem;
}
.spotlight p { font-size: .88rem; color: var(--ink-soft); margin-top: .5rem; }
.spotlight a {
  display: inline-block; margin-top: .9rem;
  font-size: .88rem; font-weight: 600;
}

/* ---------- guides page ---------- */
.page-title { padding-block: clamp(2rem, 6vw, 3.2rem) 0; }
.page-title h1 {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(1.9rem, 4.5vw, 2.8rem); color: var(--green-deep);
  margin-top: .5rem;
}
.page-title p { margin-top: .8rem; max-width: var(--measure); color: var(--ink-soft); }
.shelves {
  padding-block: 2rem 3rem;
  display: grid; gap: 1rem; grid-template-columns: repeat(2, 1fr);
}
.shelf {
  background: #fdfcf7; border: 1px solid var(--line);
  border-radius: 3px; padding: 1.1rem 1.2rem;
}
.shelf .svc {
  font-family: var(--mono); font-size: .66rem;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--green);
  display: flex; align-items: center; gap: .5rem;
  margin-bottom: .45rem;
}
.shelf .svc::before {
  content: ""; width: 1.1rem; height: 2px; background: var(--gold);
}
.shelf h3 { font-family: var(--serif); font-size: 1.12rem; color: var(--green-deep); }
.shelf p { font-size: .86rem; color: var(--ink-soft); margin-top: .35rem; }
.shelf a { font-size: .88rem; font-weight: 600; display: inline-block; margin-top: .55rem; }

/* ---------- footer ---------- */
footer {
  background: var(--green-deep); color: #cfd6cb;
  padding-block: 2.4rem 2rem; margin-top: auto;
}
.foot-grid {
  display: grid; gap: 2rem; grid-template-columns: 1.4fr 1fr 1fr;
  font-size: .87rem;
}
.foot-grid h3 {
  font-family: var(--mono); font-size: .68rem;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--gold); margin-bottom: .7rem; font-weight: 500;
}
.foot-grid ul { list-style: none; }
.foot-grid li { margin-bottom: .45rem; }
.foot-grid a { color: #e6e5da; text-decoration: none; }
.foot-grid a:hover { text-decoration: underline; }
.foot-note {
  margin-top: 2rem; padding-top: 1.2rem;
  border-top: 1px solid rgba(242, 241, 232, .18);
  font-size: .78rem; color: #a8b3a5;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}

/* ---------- responsive ---------- */
@media (max-width: 56rem) {
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .bulletin-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 34rem) {
  .tiles { grid-template-columns: 1fr; }
  .shelves { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .mast-links { display: none; }
  .searchbar input[type="search"] { font-size: 1rem; }
}