:root {
  --bg: #eef3f7;
  --ink: #14202b;
  --muted: #4d5d6c;
  --line: #c5d2de;
  --blue: #1d4e89;
  --yellow: #f2b544;
  --max: 1040px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    linear-gradient(90deg, #1d4e89 0 10px, transparent 10px) 0 0 / 100% 100% no-repeat,
    var(--bg);
  color: var(--ink);
  font-family: "Noto Sans Khmer", "Leelawadee UI", "Khmer UI", "Segoe UI", sans-serif;
  font-size: 18px;
  line-height: 1.85;
}
a { color: var(--blue); }
figure a { display: block; text-decoration: none; }
img { max-width: 100%; height: auto; }
.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: #fff;
  padding: 0.45rem 0.75rem;
  z-index: 5;
}
.skip:focus { top: 0.6rem; }

.site-header {
  background: var(--blue);
  color: #f4f7fb;
  border-bottom: 6px solid var(--yellow);
}
.site-header a { color: #f4f7fb; text-decoration: none; }
.header-inner, .wrap, .site-footer .inner {
  width: min(var(--max), calc(100% - 2.4rem));
  margin: 0 auto;
}
.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.8rem 1.4rem;
  padding: 0.9rem 0 0.7rem;
}
.logo { display: flex; flex-direction: column; line-height: 1.15; }
.logo strong {
  font-size: 1.7rem;
  background: var(--yellow);
  color: var(--ink);
  padding: 0.05rem 0.45rem 0.15rem;
}
.logo span { color: #d6e4f2; font-size: 0.82rem; margin-top: 0.25rem; }
.nav { display: flex; flex-wrap: wrap; gap: 0.15rem 1rem; }
.nav a {
  padding: 0.15rem 0;
  border-bottom: 2px solid transparent;
  font-size: 0.95rem;
}
.nav a:hover { border-bottom-color: var(--yellow); color: #fff; }

.wrap { padding: 1.1rem 0 3rem; }
.crumbs { color: var(--muted); font-size: 0.86rem; margin: 0 0 1.1rem; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.35rem; padding: 0; margin: 0; }
.crumbs a { text-decoration: none; }
.crumbs li:not(:last-child)::after { content: "·"; margin-left: 0.35rem; }

.paper {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 0;
}
.kicker {
  margin: 0 0 0.45rem;
  color: var(--blue);
  font-weight: 700;
  font-size: 0.82rem;
}
h1 {
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  line-height: 1.25;
  margin: 0 0 0.8rem;
  max-width: 16ch;
}
.lead { font-size: 1.12rem; margin-top: 0; max-width: 42rem; }
.meta {
  display: inline-block;
  color: var(--ink);
  background: #fff;
  border: 2px solid var(--ink);
  font-size: 0.86rem;
  padding: 0.15rem 0.55rem;
  margin-bottom: 1rem;
}

.hero-figure { margin: 0.4rem 0 1.4rem; }
.hero-figure img,
.split figure img,
.ad img {
  display: block;
  width: 100%;
  border-radius: 0;
}
.hero-figure img { border: 3px solid var(--ink); }
figcaption { color: var(--muted); font-size: 0.88rem; margin-top: 0.45rem; }

h2 {
  font-size: 1.55rem;
  line-height: 1.35;
  margin: 2.2rem 0 0.6rem;
  padding-top: 0.7rem;
  border-top: 3px solid var(--ink);
}
h3 { font-size: 1.08rem; margin: 1.1rem 0 0.3rem; color: var(--blue); }
p { margin: 0 0 0.9rem; }

.points {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  padding: 0;
  margin: 1rem 0 0.4rem;
}
.points li {
  margin: 0;
  background: #fff;
  border: 2px solid var(--ink);
  padding: 0.7rem 0.8rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 1.3rem;
  align-items: start;
  margin: 0.8rem 0 1.2rem;
}
.split figure { margin: 0; }
.split figure img {
  border: 3px solid var(--ink);
  box-shadow: 12px 12px 0 var(--blue);
}
.split.flip { grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); }
.split.flip figure { order: 2; }
.split.flip figure img { box-shadow: -12px 12px 0 var(--yellow); }

.ad {
  margin: 1.5rem 0;
  padding: 0.75rem 0 0.85rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
  display: grid;
  grid-template-columns: 8.2rem minmax(0, 1fr);
  gap: 0.35rem 0.9rem;
  align-items: start;
}
.ad-label {
  margin: 0;
  background: var(--yellow);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.35rem 0.45rem;
}
.ad a { display: block; }
.ad-frame {
  display: block;
  width: 100%;
  height: min(70vh, 36rem);
  margin-top: 0.7rem;
  border: 0;
  background: #0e0e0e;
}
.ad img { border: 3px solid var(--ink); }
.ad-caption {
  grid-column: 2;
  margin: 0;
  color: var(--ink);
  font-size: 0.92rem;
}

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; margin: 0.4rem 0 1rem; background: #fff; }
caption { text-align: left; font-weight: 700; margin-bottom: 0.45rem; }
th, td {
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 0.6rem 0.45rem;
  vertical-align: top;
  text-align: left;
}
th { color: var(--blue); background: transparent; }

.faq details {
  background: #fff;
  border: 2px solid var(--ink);
  margin: 0.55rem 0;
  padding: 0.55rem 0.8rem;
}
.faq summary { cursor: pointer; font-weight: 700; }
.faq details p { margin: 0.45rem 0 0.2rem; }

.site-footer {
  background: #fff;
  color: var(--ink);
  border-top: 3px solid var(--ink);
  padding: 1.2rem 0 1.6rem;
  font-size: 0.92rem;
}
.site-footer a { color: var(--blue); }
.site-footer .inner { display: grid; gap: 0.45rem; }

@media (max-width: 800px) {
  body { font-size: 16px; background: var(--bg); }
  h1 { max-width: none; }
  .points, .split, .split.flip, .ad { grid-template-columns: 1fr; }
  .split.flip figure { order: 0; }
  .ad-caption { grid-column: 1; }
  .split figure img, .split.flip figure img { box-shadow: 8px 8px 0 var(--blue); }
}
.poster img { width: min(100%, 24rem); height: auto; }