/* Ground Truth Asia — aars-acrs.org
   Palette: dawn over the Mekong delta seen from orbit.
   Deep space navy, paddy green, silt brown, mist grey, orbit orange.
   Prefix gta-. Hand-written, no framework. */

:root {
  --navy: #0e1b2c;
  --navy-2: #14263c;
  --navy-3: #1b324d;
  --paper: #fbfaf7;
  --mist: #eceef0;
  --mist-2: #dde1e5;
  --ink: #1c2733;
  --ink-soft: #4d5a68;
  --paddy: #3f7a4c;
  --paddy-deep: #2e5c39;
  --silt: #8a6647;
  --silt-deep: #6f4f36;
  --orbit: #e07b2e;
  --orbit-deep: #c4651d;
  --line: #c9ced4;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.03rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--paddy-deep); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--orbit-deep); }
h1, h2, h3, h4 { font-family: var(--serif); line-height: 1.18; margin: 0 0 .5em; font-weight: 600; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.3rem; }
.gta-in { max-width: 66rem; margin: 0 auto; padding: 0 1.25rem; }

.gta-skip {
  position: absolute; left: -999px; top: 0; background: var(--orbit); color: #fff;
  padding: .6rem 1rem; z-index: 60; font-weight: 600;
}
.gta-skip:focus { left: 0; }

/* ---------- header ---------- */
.gta-head { background: var(--navy); color: #dfe5ec; border-bottom: 1px solid rgba(224,123,46,.35); }
.gta-head__bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .65rem 0; }
.gta-brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; color: #fff; }
.gta-brand:hover { color: #fff; }
.gta-brand__mark {
  width: 2.35rem; height: 2.35rem; flex: 0 0 auto; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #2c5d3a, var(--paddy-deep) 62%, #1d3f26);
  position: relative; border: 2px solid var(--orbit);
}
.gta-brand__mark::after {
  content: ""; position: absolute; inset: -7px; border: 1px solid rgba(224,123,46,.65);
  border-radius: 50%; transform: rotate(-18deg) scaleY(.42);
}
.gta-brand__name { display: block; font-family: var(--serif); font-size: 1.18rem; font-weight: 700; letter-spacing: .01em; }
.gta-brand__tag { display: block; font-size: .71rem; text-transform: uppercase; letter-spacing: .14em; color: #9fb0c2; margin-top: .1rem; }
.gta-nav { position: static; }
.gta-nav__l { display: none; }
.gta-nav__list { display: flex; gap: .2rem; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; }
.gta-nav__list a {
  color: #c6d2de; text-decoration: none; font-size: .92rem; padding: .45rem .7rem; border-radius: 3px;
}
.gta-nav__list a:hover { color: #fff; background: var(--navy-3); }
.gta-nav__list a[aria-current="page"] { color: var(--orbit); }
.gta-nav__list a[aria-current="page"]:hover { color: var(--orbit); }

/* ---------- hero ---------- */
.gta-hero { background: var(--navy); color: #d8e0ea; overflow: hidden; }
.gta-hero__grid {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 2.5rem; align-items: center;
  padding: 3.2rem 0 3.4rem;
  background-image: linear-gradient(rgba(224,123,46,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(224,123,46,.05) 1px, transparent 1px);
  background-size: 44px 44px;
}
.gta-kicker {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--orbit); margin: 0 0 .9rem;
}
.gta-hero__title { color: #fff; font-size: clamp(1.9rem, 4vw, 2.85rem); margin-bottom: .8rem; }
.gta-hero__deck { font-size: 1.1rem; color: #b7c5d4; max-width: 34rem; }
.gta-actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 1.5rem; }
.gta-btn {
  display: inline-block; text-decoration: none; font-weight: 600; font-size: .95rem;
  padding: .68rem 1.25rem; border-radius: 3px; border: 1.5px solid transparent;
}
.gta-btn--solid { background: var(--orbit); color: #fff; }
.gta-btn--solid:hover { background: var(--orbit-deep); color: #fff; }
.gta-btn--ghost { border-color: #5a7186; color: #dfe7ef; }
.gta-btn--ghost:hover { border-color: var(--orbit); color: #fff; }
.gta-hero__fig {
  margin: 0; border-radius: 6px; overflow: hidden;
  border: 1px solid #33506e; box-shadow: 0 18px 44px rgba(0,0,0,.38);
  position: relative;
}
.gta-hero__fig::before {
  content: ""; position: absolute; inset: 10px; border: 1px solid rgba(255,255,255,.22);
  border-radius: 3px; pointer-events: none;
}
.gta-hero__fig figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 2.2rem .9rem .6rem;
  font-size: .8rem; color: #cfd9e2;
  background: linear-gradient(transparent, rgba(10,18,29,.82));
}

/* ---------- bands ---------- */
.gta-band { padding: 2.9rem 0 3.1rem; }
.gta-band--mist { background: var(--mist); }
.gta-band--navy { background: var(--navy-2); color: #d5dde6; }
.gta-band--navy h2 { color: #fff; }
.gta-band__title { font-size: clamp(1.45rem, 2.6vw, 1.95rem); margin-bottom: .35rem; }
.gta-band__lede { color: var(--ink-soft); max-width: 46rem; margin-bottom: 1.6rem; }
.gta-band--navy .gta-band__lede { color: #a9b9c9; }
.gta-more { margin: 1.4rem 0 0; }
.gta-more a { font-weight: 600; }

/* ---------- section tiles ---------- */
.gta-tiles { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.15rem; }
.gta-tile {
  background: #fff; border: 1px solid var(--line); border-radius: 5px; overflow: hidden;
  display: flex; flex-direction: column;
}
.gta-tile__fig { margin: 0; border-bottom: 3px solid var(--paddy); }
.gta-tile--2 .gta-tile__fig { border-bottom-color: var(--silt); }
.gta-tile--3 .gta-tile__fig { border-bottom-color: var(--orbit); }
.gta-tile__body { padding: 1.05rem 1.15rem 1.25rem; display: flex; flex-direction: column; flex: 1; }
.gta-tile__no {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .16em; color: var(--ink-soft);
  display: block; margin-bottom: .35rem;
}
.gta-tile__body h3 { font-size: 1.22rem; margin-bottom: .4rem; }
.gta-tile__note { color: var(--ink-soft); font-size: .92rem; flex: 1; }
.gta-tile__meta { font-family: var(--mono); font-size: .76rem; letter-spacing: .08em; color: var(--paddy-deep); margin: .6rem 0 0; }
.gta-tile--2 .gta-tile__meta { color: var(--silt-deep); }
.gta-tile--3 .gta-tile__meta { color: var(--orbit-deep); }

/* ---------- cards ---------- */
.gta-cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.3rem; }
.gta-cards--two { grid-template-columns: repeat(2, 1fr); }
.gta-card {
  background: #fff; border: 1px solid var(--line); border-radius: 5px; overflow: hidden;
  display: flex; flex-direction: column; border-top: 3px solid var(--paddy);
}
.gta-card--v2 { border-top-color: var(--silt); }
.gta-card--v3 { border-top-color: var(--orbit); }
.gta-card__fig { margin: 0; aspect-ratio: 16 / 9.5; overflow: hidden; background: var(--mist-2); }
.gta-card__fig img { width: 100%; height: 100%; object-fit: cover; }
.gta-card__body { padding: 1rem 1.1rem 1.15rem; display: flex; flex-direction: column; flex: 1; }
.gta-card__tag {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--paddy-deep); margin: 0 0 .45rem;
}
.gta-card--v2 .gta-card__tag { color: var(--silt-deep); }
.gta-card--v3 .gta-card__tag { color: var(--orbit-deep); }
.gta-card__body h3 { font-size: 1.14rem; margin-bottom: .45rem; }
.gta-card__body h3 a { text-decoration: none; color: var(--ink); }
.gta-card__body h3 a:hover { color: var(--paddy-deep); text-decoration: underline; }
.gta-card__note { color: var(--ink-soft); font-size: .9rem; flex: 1; }
.gta-card__cap { font-size: .8rem; color: var(--ink-soft); border-top: 1px dashed var(--line); padding-top: .55rem; margin: .7rem 0 0; font-style: italic; }

/* ---------- article layout ---------- */
.gta-crumb { font-size: .82rem; color: var(--ink-soft); padding: 1rem 0 0; }
.gta-crumb ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .35rem; }
.gta-crumb li + li::before { content: "\2192"; margin-right: .35rem; color: var(--line); }
.gta-page { display: grid; grid-template-columns: minmax(0, 1fr) 17rem; gap: 2.6rem; padding: .6rem 0 3rem; }
.gta-art__kicker { margin-bottom: .7rem; }
.gta-art__title { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-bottom: .6rem; }
.gta-stand { font-size: 1.12rem; color: var(--ink-soft); max-width: 40rem; border-left: 3px solid var(--orbit); padding-left: .95rem; }
.gta-meta {
  list-style: none; display: flex; flex-wrap: wrap; gap: .4rem 1.1rem; margin: 1.2rem 0 1.4rem; padding: 0;
  font-size: .84rem; color: var(--ink-soft); font-family: var(--mono);
}
.gta-meta li { border-left: 1px solid var(--line); padding-left: 1.1rem; }
.gta-meta li:first-child { border-left: 0; padding-left: 0; }
.gta-art__hero { margin: 0 0 1.8rem; }
.gta-art__hero figcaption, .gta-prose figcaption {
  font-size: .8rem; color: var(--ink-soft); padding-top: .45rem; border-bottom: 1px solid var(--mist-2);
  padding-bottom: .5rem; margin-bottom: .4rem;
}
.gta-prose { font-size: 1.04rem; }
.gta-prose h2 {
  font-size: 1.34rem; margin: 1.9rem 0 .7rem; padding-left: .8rem; border-left: 3px solid var(--paddy);
}
.gta-prose h2::before { content: "\25E6"; color: var(--orbit); margin-right: .5rem; font-family: var(--sans); }
.gta-prose p { max-width: 42rem; }
.gta-prose a { text-underline-offset: 3px; }
.gta-art__section {
  display: block; font-family: var(--mono); font-size: .72rem; letter-spacing: .16em;
  text-transform: uppercase; margin: 2rem 0 1rem; color: var(--paddy-deep);
}
.gta-next { margin-top: 2.4rem; border-top: 1px solid var(--line); padding-top: 1.2rem; }
.gta-next h2 { font-size: 1.15rem; }
.gta-next ul { list-style: none; margin: 0; padding: 0; }
.gta-next li { padding: .32rem 0; border-bottom: 1px dotted var(--mist-2); }
.gta-next li:last-child { border-bottom: 0; }

/* ---------- sidebar ---------- */
.gta-side { display: flex; flex-direction: column; gap: 1.15rem; }
.gta-box { background: var(--mist); border-radius: 5px; padding: 1.05rem 1.15rem 1.2rem; border-top: 3px solid var(--paddy); }
.gta-box--v2 { border-top-color: var(--silt); }
.gta-box--v3 { border-top-color: var(--orbit); }
.gta-box h2 { font-family: var(--sans); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink); margin-bottom: .6rem; }
.gta-box ul { list-style: none; margin: 0; padding: 0; font-size: .9rem; }
.gta-box li { padding: .3rem 0; border-bottom: 1px dotted var(--mist-2); }
.gta-box li:last-child { border-bottom: 0; }

/* ---------- footer ---------- */
.gta-foot { background: var(--navy); color: #aebccb; margin-top: 1rem; }
.gta-foot__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; padding: 2.4rem 0 1.6rem; }
.gta-foot h2 { font-family: var(--sans); font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: #fff; margin-bottom: .7rem; }
.gta-foot p { font-size: .9rem; }
.gta-foot ul { list-style: none; margin: 0; padding: 0; font-size: .9rem; }
.gta-foot li { padding: .22rem 0; }
.gta-foot a { color: #c6d3df; text-decoration: none; }
.gta-foot a:hover { color: var(--orbit); text-decoration: underline; }
.gta-foot__base {
  display: flex; flex-wrap: wrap; gap: .5rem 1.6rem; justify-content: space-between;
  border-top: 1px solid #263d58; padding: 1rem 0 1.4rem; font-size: .82rem; color: #8ea1b4;
}

/* ---------- 404 ---------- */
.gta-404 { padding: 4rem 0 5rem; }
.gta-404 h1 { font-size: 2rem; }

/* ---------- responsive ---------- */
@media (max-width: 62rem) {
  .gta-page { grid-template-columns: minmax(0, 1fr); }
  .gta-side { flex-direction: row; flex-wrap: wrap; }
  .gta-side .gta-box { flex: 1 1 15rem; }
}
@media (max-width: 54rem) {
  .gta-hero__grid { grid-template-columns: 1fr; padding: 2.4rem 0 2.6rem; }
  .gta-tiles, .gta-cards { grid-template-columns: repeat(2, 1fr); }
  .gta-foot__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 40rem) {
  .gta-nav__l {
    display: inline-flex; align-items: center; cursor: pointer; color: #c6d2de;
    font-size: .85rem; padding: .45rem .7rem; border: 1px solid #33506e; border-radius: 3px;
  }
  .gta-nav__t { display: none; }
  .gta-nav__t:checked ~ .gta-nav__list {
    display: block; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--navy-2); margin: 0; padding: .4rem 1.25rem 1rem; border-bottom: 2px solid var(--orbit);
  }
  .gta-nav__t:checked ~ .gta-nav__list a { display: block; padding: .6rem .2rem; border-bottom: 1px solid #263d58; }
  .gta-nav__list { display: none; }
  .gta-tiles, .gta-cards, .gta-cards--two { grid-template-columns: 1fr; }
  .gta-side { flex-direction: column; }
  .gta-foot__grid { grid-template-columns: 1fr; gap: 1.2rem; }
}