:root {
  --paper: #f3efe6;
  --ink: #1c1915;
  --muted: #5e584e;
  --line: #d8d0c2;
  --link: #0e6b58;
  --card: #fffcf6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Sans Khmer", "Leelawadee UI", "Khmer UI", sans-serif;
  font-size: 18px;
  line-height: 1.75;
}

a { color: var(--link); }
img { max-width: 100%; height: auto; }

.skip {
  position: absolute;
  left: 0.6rem;
  top: -3rem;
  background: var(--ink);
  color: var(--paper);
  padding: 0.4rem 0.7rem;
}
.skip:focus { top: 0.6rem; }

.sheet {
  width: min(1080px, calc(100% - 2rem));
  margin-inline: auto;
}

.mast {
  background: var(--paper);
  border-bottom: 3px solid var(--ink);
}
.mast-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0 0.35rem;
}
.mark {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  color: var(--ink);
  text-decoration: none;
}
.mark b {
  display: inline-grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--ink);
  color: var(--paper);
  font-size: 1.05rem;
}
.mark span { font-weight: 700; }
.kicker { margin: 0; color: var(--muted); font-size: 0.95rem; }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  border-top: 1px solid var(--ink);
  padding: 0.55rem 0 0.75rem;
}
.nav a { color: var(--ink); text-decoration: none; }
.nav a:hover { color: var(--link); }

.crumbs { margin: 1rem 0 0; font-size: 0.92rem; }
.crumbs ol { display: flex; gap: 0.4rem; list-style: none; padding: 0; margin: 0; }
.crumbs li:not(:last-child)::after { content: "/"; margin-left: 0.4rem; color: var(--muted); }

.opener {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(16rem, 0.7fr);
  gap: 1.4rem;
  align-items: end;
  margin: 1.1rem 0 0.4rem;
}
.eyebrow { margin: 0; color: var(--link); font-weight: 700; }
h1 {
  font-size: clamp(2rem, 4.2vw, 3.15rem);
  line-height: 1.28;
  margin: 0.15rem 0 0.45rem;
}
.meta { margin: 0; color: var(--muted); font-size: 0.92rem; }
.brief {
  background: var(--ink);
  color: var(--paper);
  padding: 1rem 1.05rem;
}
.brief p { margin: 0; }

.lead { font-size: 1.08rem; }

h2 {
  font-size: 1.55rem;
  line-height: 1.4;
  margin: 2rem 0 0.6rem;
  padding-top: 0.35rem;
  border-top: 2px solid var(--ink);
}
h3 { font-size: 1.12rem; line-height: 1.45; margin: 1rem 0 0.3rem; }

figure { margin: 1rem 0 1.3rem; }
figure img { display: block; width: 100%; border: 1px solid var(--ink); }
figcaption { color: var(--muted); font-size: 0.92rem; margin-top: 0.4rem; }

.trio, .four {
  display: grid;
  gap: 0.9rem;
  list-style: none;
  padding: 0;
  margin: 0.8rem 0 0;
}
.trio { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.trio li, .four li {
  background: var(--card);
  border-top: 2px solid var(--ink);
  padding: 0.75rem 0.8rem 0.9rem;
}
.trio h3, .four h3 { margin-top: 0; }
.trio p, .four p { margin: 0.25rem 0 0; }

.index {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem 1rem;
  margin: 0.4rem 0 0;
}
.index div { border-top: 1px solid var(--line); padding-top: 0.4rem; }
.index dt { font-weight: 700; }
.index dd { margin: 0.15rem 0 0; color: var(--muted); }

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.2rem 1.4rem;
}
.faq-grid details { border-bottom: 1px solid var(--line); padding: 0.55rem 0 0.7rem; }
.faq-grid summary { cursor: pointer; font-weight: 700; }
.faq-grid p { margin: 0.4rem 0 0; }

.site-footer {
  border-top: 3px solid var(--ink);
  margin-top: 2rem;
  padding: 1rem 0 1.6rem;
  color: var(--muted);
  font-size: 0.95rem;
}
.site-footer p { margin: 0.25rem 0; }

@media (max-width: 900px) {
  .index, .four { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  body { font-size: 16.5px; }
  .opener, .trio, .four, .index, .faq-grid { grid-template-columns: 1fr; }
  .mast-row { align-items: flex-start; }
}
.poster img { width: min(100%, 24rem); height: auto; }