/* =========================================================================
   Trail Study templates — single + archive
   Tokens: --lc-cream #FAF8F5, --lc-brown #2C1810, --lc-gold #c9a962,
           --lc-teal #2d9da6, --lc-paper rgba(44,24,16,0.06)
   ========================================================================= */

:root {
  --study-tile-bg: #fff;
  --study-tile-border: rgba(44, 24, 16, 0.08);
  --study-accent: #c9a962;
  --study-text-muted: rgba(44, 24, 16, 0.65);
}

/* --- Hero --- */
.study-hero {
  background: #FAF8F5;
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--study-tile-border);
}
.study-hero__inner {
  max-width: 1100px; margin: 0 auto; padding: 0 1.5rem;
  display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: end;
}
.study-hero__title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15; color: #2C1810; margin: 0 0 .5rem;
}
.study-hero__subtitle { color: var(--study-text-muted); font-size: 1.1rem; margin: 0; }
.study-hero__meta { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1rem; color: var(--study-text-muted); font-size: .9rem; }
.study-hero__sponsors { display: flex; gap: 1.25rem; align-items: center; }
.study-hero__sponsor-logo img { max-height: 64px; width: auto; }
.study-hero__authors { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.study-author-chip {
  display: inline-block; padding: .25rem .75rem;
  background: var(--study-paper, rgba(44,24,16,.06));
  border-radius: 999px; font-size: .85rem; color: #2C1810;
}

/* --- Stat strip --- */
.study-stat-strip { padding: 2.5rem 0; background: #fff; }
.study-stat-strip__inner {
  max-width: 1100px; margin: 0 auto; padding: 0 1.5rem;
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.study-stat-tile {
  background: var(--study-tile-bg);
  border: 1px solid var(--study-tile-border);
  border-top: 4px solid var(--study-accent);
  padding: 1.5rem; border-radius: 8px; text-align: left;
}
.study-stat-tile__value {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.75rem, 3vw, 2.5rem); color: #2C1810; line-height: 1;
}
.study-stat-tile__label { color: var(--study-text-muted); margin-top: .5rem; font-size: .95rem; }
.study-stat-tile__footnote { color: var(--study-text-muted); margin-top: .35rem; font-size: .75rem; font-style: italic; }

/* --- Generic section --- */
.study-section { padding: 3rem 0; }
.study-section--alt { background: #FAF8F5; }
.study-section__inner { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.study-section__title { font-family: 'Playfair Display', serif; font-size: 2rem; color: #2C1810; margin: 0 0 1.5rem; }
.study-section__body { color: #2C1810; font-size: 1.05rem; line-height: 1.7; }

/* --- Site impact cards --- */
.study-sites-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.study-site-card { background: #fff; border: 1px solid var(--study-tile-border); border-radius: 8px; overflow: hidden; }
.study-site-card__photo { aspect-ratio: 16/9; background: linear-gradient(135deg, #c9a962 0%, #b87333 100%); }
.study-site-card__photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.study-site-card__body { padding: 1.25rem; }
.study-site-card__name { font-family: 'Playfair Display', serif; font-size: 1.25rem; margin: 0 0 .5rem; color: #2C1810; line-height: 1.25; }

/* "Explore in 360°" pill link to Terrain360 */
.study-site-card__t360 {
  display: inline-flex; align-items: center; gap: .4rem;
  margin: 0 0 .85rem;
  padding: .3rem .75rem .3rem .65rem;
  background: rgba(45, 157, 166, 0.08);
  color: var(--lc-teal, #2d9da6);
  border: 1px solid rgba(45, 157, 166, 0.25);
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .01em;
  text-decoration: none;
  transition: background .15s ease, border-color .15s ease, color .15s ease, transform .15s ease;
}
.study-site-card__t360 svg { flex-shrink: 0; }
.study-site-card__t360:hover {
  background: var(--lc-teal, #2d9da6);
  border-color: var(--lc-teal, #2d9da6);
  color: #fff;
  transform: translateY(-1px);
}

.study-site-card__stats { display: grid; gap: .5rem; grid-template-columns: 1fr 1fr; }
.study-site-stat__value { font-weight: 600; color: #2C1810; }
.study-site-stat__label { color: var(--study-text-muted); font-size: .8rem; }

/* --- Visitor profile --- */
.study-visitor-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.study-visitor-bar {
  background: var(--study-tile-bg);
  border: 1px solid var(--study-tile-border);
  border-radius: 8px; padding: 1rem;
}
.study-visitor-bar__label { color: #2C1810; font-size: .95rem; margin-bottom: .5rem; }
.study-visitor-bar__track {
  height: 12px; background: rgba(201, 169, 98, .15); border-radius: 6px; overflow: hidden;
}
.study-visitor-bar__fill { height: 100%; background: var(--study-accent); border-radius: 6px; transition: width .4s ease; }
.study-visitor-bar__value { font-family: 'Playfair Display', serif; font-size: 1.5rem; color: #2C1810; margin-top: .35rem; }

/* --- PDF download --- */
.study-pdf-download {
  display: inline-flex; align-items: center; gap: .75rem;
  background: #2C1810; color: #FAF8F5;
  padding: 1rem 1.75rem; border-radius: 8px; text-decoration: none;
  font-weight: 600; transition: background .2s;
}
.study-pdf-download:hover { background: #4a2a1a; color: #FAF8F5; }
.study-pdf-download__meta { font-weight: 400; font-size: .85rem; opacity: .8; margin-left: .5rem; }

/* --- Citation block --- */
.study-citation-block {
  background: var(--study-tile-bg);
  border: 1px solid var(--study-tile-border); border-left: 4px solid var(--study-accent);
  border-radius: 6px; padding: 1.25rem; margin-bottom: 1rem; position: relative;
}
.study-citation-block__label { color: var(--study-text-muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; margin-bottom: .5rem; }
.study-citation-block__text { font-family: 'Courier New', monospace; font-size: .9rem; line-height: 1.5; color: #2C1810; margin: 0; white-space: pre-wrap; }
.study-citation-copy {
  position: absolute; top: 1rem; right: 1rem;
  background: transparent; border: 1px solid var(--study-tile-border); color: #2C1810;
  padding: .35rem .65rem; border-radius: 4px; font-size: .75rem; cursor: pointer;
}
.study-citation-copy:hover { background: var(--study-accent); color: #fff; border-color: var(--study-accent); }
.study-citation-copy--copied { background: var(--study-accent); color: #fff; border-color: var(--study-accent); }
.study-data-use-notice { color: var(--study-text-muted); font-style: italic; font-size: .9rem; margin-top: 1rem; }

/* --- Authors + sponsors footer --- */
.study-authors-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.study-author-card { background: #fff; border: 1px solid var(--study-tile-border); border-radius: 6px; padding: 1rem; }
.study-author-card__name { font-weight: 600; color: #2C1810; }
.study-author-card__credentials { color: var(--study-accent); font-size: .85rem; margin-left: .35rem; }
.study-author-card__affiliation { color: var(--study-text-muted); font-size: .9rem; margin-top: .35rem; }

/* --- Archive --- */
.studies-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); padding-top: 1rem; }
.study-card {
  background: #fff; border: 1px solid var(--study-tile-border); border-radius: 8px;
  padding: 1.5rem; display: flex; flex-direction: column; gap: .75rem;
  text-decoration: none; color: #2C1810; transition: transform .2s, box-shadow .2s;
}
.study-card:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(44, 24, 16, .08); color: #2C1810; }
.study-card__year { color: var(--study-accent); font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; }
.study-card__title { font-family: 'Playfair Display', serif; font-size: 1.25rem; margin: 0; }
.study-card__excerpt { color: var(--study-text-muted); font-size: .95rem; line-height: 1.5; }
.study-card__headline { font-family: 'Playfair Display', serif; color: #2C1810; font-size: 1.5rem; }

/* --- Section lede paragraph (intro under a section title) --- */
.study-section__lede {
  color: var(--study-text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 68ch;
  margin: -.5rem 0 1.75rem;
}

/* --- Compare-across-sites (small multiples) --- */
.study-compare-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.study-compare-chart {
  background: #fff;
  border: 1px solid var(--study-tile-border);
  border-radius: 8px;
  padding: 1.25rem 1.25rem 1rem;
}
.study-compare-chart__title {
  font-family: 'Playfair Display', serif;
  font-size: 1rem;
  color: #2C1810;
  margin: 0 0 1rem;
  letter-spacing: 0.01em;
}
.study-compare-bar {
  display: grid;
  grid-template-columns: 95px 1fr auto;
  gap: .6rem;
  align-items: center;
  margin-bottom: .5rem;
}
.study-compare-bar:last-child { margin-bottom: 0; }
.study-compare-bar__label {
  font-size: .8rem;
  color: #2C1810;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.study-compare-bar__track {
  height: 8px;
  background: rgba(201, 169, 98, 0.15);
  border-radius: 4px;
  overflow: hidden;
}
.study-compare-bar__fill {
  height: 100%;
  background: var(--study-accent);
  border-radius: 4px;
  transition: width .4s ease;
}
.study-compare-bar__value {
  font-size: .8rem;
  font-weight: 600;
  color: #2C1810;
  white-space: nowrap;
}

/* --- Origin summary ribbon --- */
.study-origin-summary {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  background: #fff;
  border: 1px solid var(--study-tile-border);
  border-left: 4px solid var(--study-accent);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  margin-bottom: 2.5rem;
}
.study-origin-summary__stat { display: flex; flex-direction: column; gap: .25rem; }
.study-origin-summary__value {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  line-height: 1;
  color: #2C1810;
}
.study-origin-summary__sep { color: var(--study-accent); margin: 0 .15rem; }
.study-origin-summary__small {
  font-size: .55em;
  color: var(--study-text-muted);
  vertical-align: middle;
}
.study-origin-summary__label {
  color: var(--study-text-muted);
  font-size: .85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.study-origin-subhead {
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem;
  color: #2C1810;
  margin: 1.75rem 0 1rem;
}

.study-states-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: .5rem 1.5rem;
}
.study-state-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: .75rem;
  align-items: center;
}
.study-state-row__label { font-size: .9rem; color: #2C1810; }
.study-state-row__track {
  height: 10px;
  background: rgba(201, 169, 98, 0.15);
  border-radius: 5px;
  overflow: hidden;
}
.study-state-row__fill {
  height: 100%;
  background: var(--study-accent);
  border-radius: 5px;
}
.study-state-row__value {
  font-size: .85rem;
  font-weight: 600;
  color: #2C1810;
  min-width: 3.5em;
  text-align: right;
}
.study-origin-footnote {
  color: var(--study-text-muted);
  font-style: italic;
  font-size: .85rem;
  margin: 1rem 0 0;
}

.study-countries-row {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1rem;
}
.study-country-chip {
  display: inline-block;
  padding: .35rem 1rem;
  background: #fff;
  border: 1px solid var(--study-tile-border);
  border-radius: 999px;
  font-size: .85rem;
  color: #2C1810;
  transition: background .15s, border-color .15s;
}
.study-country-chip:hover {
  background: var(--study-accent);
  border-color: var(--study-accent);
  color: #fff;
}

/* --- Mobile --- */
@media (max-width: 768px) {
  .study-hero__inner { grid-template-columns: 1fr; }
  .study-hero__sponsors { justify-content: flex-start; }
  .study-site-card__stats { grid-template-columns: 1fr 1fr; }
  .study-origin-summary { gap: 1.5rem; padding: 1.25rem 1.5rem; }
  .study-compare-bar { grid-template-columns: 80px 1fr auto; gap: .4rem; }
  .study-state-row { grid-template-columns: 100px 1fr auto; gap: .5rem; }
}

/* ============================================================
   Trail Studies archive hero (added 2026-05-12)
   ============================================================ */
.studies-hero {
  position: relative;
  min-height: 360px;
  background-color: #2C1810;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: flex-end;
  margin: 0 0 2rem;
}
.studies-hero__overlay {
  width: 100%;
  background: linear-gradient(180deg, rgba(44,24,16,0) 0%, rgba(44,24,16,.35) 45%, rgba(44,24,16,.82) 100%);
}
.studies-hero__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 1.5rem 2.5rem;
  color: #FAF8F5;
}
.studies-hero__eyebrow {
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lc-gold, #c9a962);
  margin: 0 0 .65rem;
  font-weight: 600;
}
.studies-hero__title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(2.4rem, 4.5vw, 3.4rem);
  font-weight: 600;
  margin: 0 0 .6rem;
  line-height: 1.05;
  color: #FAF8F5;
}
.studies-hero__subtitle {
  font-size: 1.05rem;
  color: rgba(250,248,245,.92);
  max-width: 60ch;
  margin: 0;
  line-height: 1.55;
}
@media (max-width: 720px) {
  .studies-hero { min-height: 240px; }
  .studies-hero__inner { padding: 3rem 1.25rem 1.5rem; }
  .studies-hero__title { font-size: 2.2rem; }
}