/* ══════════════════════════════════════════════════════════════════════════
   DISCOVER — Seven Sisters Knowledge Hub design system
   Coastal Curator tokens. All classes prefixed .dh- to avoid collisions.
   Loaded only on /discover pages via $extra_head.
   ══════════════════════════════════════════════════════════════════════════ */

:root {
  --dh-ink:        #141b2b;
  --dh-ink-soft:   #3d4947;
  --dh-muted:      #5b6573;
  --dh-line:       #e3e8f5;
  --dh-line-soft:  #eef1fa;
  --dh-green:      #00685f;
  --dh-green-deep: #004f48;
  --dh-green-lite: #e7f1ef;
  --dh-sand:       #f7f5ef;
  --dh-radius:     1.25rem;
  --dh-shadow:     0 2px 18px rgba(20,27,43,.06);
  --dh-shadow-lg:  0 22px 50px rgba(20,27,43,.14);
}

.dh { color: var(--dh-ink); }
.dh * { box-sizing: border-box; }
.dh-wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 1.5rem; }
@media (max-width: 640px) { .dh-wrap { padding: 0 1.15rem; } }
.dh-narrow { max-width: 820px; }

/* ───────────────────────── Cinematic hero ───────────────────────── */
.dh-hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  isolation: isolate;
}
.dh-hero.dh-hero--compact { min-height: 56vh; }
.dh-hero__media { position: absolute; inset: 0; z-index: -2; }
.dh-hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: center 52%; }
.dh-hero__veil {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(to top, rgba(10,16,28,.92) 0%, rgba(10,16,28,.45) 48%, rgba(10,16,28,.18) 100%),
    radial-gradient(120% 80% at 18% 100%, rgba(0,104,95,.45) 0%, transparent 60%);
}
.dh-hero__content { width: 100%; padding: 4.5rem 0 3.5rem; }
.dh-hero__badge {
  display: inline-flex; align-items: center; gap: .55rem;
  background: rgba(255,255,255,.12);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,.22);
  color: #fff; padding: .45rem 1.05rem; border-radius: 2rem;
  font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  margin-bottom: 1.3rem;
}
.dh-hero__badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--dh-green); box-shadow: 0 0 0 4px rgba(137,245,231,.25); }
.dh-hero h1 {
  font-family: var(--font-headline, 'Newsreader', serif);
  font-weight: 700; color: #fff; line-height: 1.04;
  font-size: clamp(2.6rem, 6.2vw, 5rem);
  margin: 0 0 1.2rem; max-width: 16ch;
  text-shadow: 0 2px 30px rgba(0,0,0,.3);
}
.dh-hero__lead {
  font-size: clamp(1.05rem, 1.7vw, 1.3rem);
  color: rgba(255,255,255,.86); max-width: 60ch; line-height: 1.6; margin: 0 0 2rem;
}
.dh-hero__actions { display: flex; gap: .9rem; flex-wrap: wrap; align-items: center; }
.dh-btn {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .95rem 1.7rem; border-radius: .8rem;
  font-weight: 650; font-size: .95rem; cursor: pointer; border: none;
  text-decoration: none; transition: transform .2s, box-shadow .3s, background .25s, color .25s;
  white-space: nowrap;
}
.dh-btn svg { width: 18px; height: 18px; }
.dh-btn--solid { background: linear-gradient(135deg, var(--dh-green), var(--dh-green-deep)); color: #fff; box-shadow: 0 12px 30px rgba(0,104,95,.35); }
.dh-btn--solid:hover { transform: translateY(-2px); box-shadow: 0 18px 40px rgba(0,104,95,.45); }
.dh-btn--glass {
  background: rgba(255,255,255,.14); color: #fff;
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.28);
}
.dh-btn--glass:hover { background: rgba(255,255,255,.24); transform: translateY(-2px); }
.dh-btn--ghost { background: transparent; color: var(--dh-green); border: 1.5px solid var(--dh-green); }
.dh-btn--ghost:hover { background: var(--dh-green); color: #fff; }

/* hero stat ribbon */
.dh-hero__stats { display: flex; flex-wrap: wrap; gap: 2.2rem; margin-top: 2.4rem; }
.dh-hero__stat { color: #fff; }
.dh-hero__stat b { display: block; font-family: var(--font-headline, serif); font-size: 1.9rem; line-height: 1; }
.dh-hero__stat span { font-size: .8rem; color: rgba(255,255,255,.7); letter-spacing: .04em; }

/* ───────────────────────── Sections ───────────────────────── */
.dh-section { padding: clamp(3.2rem, 6vw, 5.5rem) 0; }
.dh-section--sand { background: var(--dh-sand); }
.dh-section--green {
  background: linear-gradient(135deg, var(--dh-green), var(--dh-green-deep));
  color: #fff;
}
.dh-section--mist { background: var(--surface-container-low, #f1f3ff); }
.dh-eyebrow {
  display: inline-block; font-size: .73rem; font-weight: 800;
  letter-spacing: .18em; text-transform: uppercase; color: var(--dh-green);
  margin-bottom: .8rem;
}
.dh-section--green .dh-eyebrow { color: var(--dh-primary-fixed, #89f5e7); }
.dh-h2 {
  font-family: var(--font-headline, serif); font-weight: 700;
  font-size: clamp(1.85rem, 3.4vw, 2.7rem); line-height: 1.12; margin: 0 0 1rem;
  color: inherit;
}
.dh-lead { font-size: 1.1rem; line-height: 1.7; color: var(--dh-muted); max-width: 65ch; margin: 0 0 1rem; }
.dh-section--green .dh-lead { color: rgba(255,255,255,.85); }
.dh-center { text-align: center; }
.dh-center .dh-lead { margin-left: auto; margin-right: auto; }

/* ───────────────────────── Sticky pill nav / filter ───────────────────────── */
.dh-pillbar {
  position: sticky; top: 64px; z-index: 30;
  background: rgba(249,249,255,.82);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--dh-line);
  padding: .8rem 0;
}
.dh-pillbar__inner { display: flex; gap: .9rem; align-items: center; flex-wrap: wrap; }
.dh-search {
  position: relative; flex: 1 1 240px; min-width: 200px;
}
.dh-search svg { position: absolute; left: .9rem; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--dh-muted); }
.dh-search input {
  width: 100%; padding: .7rem 1rem .7rem 2.6rem;
  border: 1px solid var(--dh-line); border-radius: 2rem; background: #fff;
  font-size: .92rem; font-family: var(--font-body, sans-serif); color: var(--dh-ink);
  transition: border-color .2s, box-shadow .2s;
}
.dh-search input:focus { outline: none; border-color: var(--dh-green); box-shadow: 0 0 0 3px rgba(0,104,95,.12); }
.dh-pills { display: flex; gap: .5rem; flex-wrap: wrap; }
.dh-pill {
  appearance: none; border: 1px solid var(--dh-line); background: #fff;
  color: var(--dh-ink-soft); padding: .5rem 1.05rem; border-radius: 2rem;
  font-size: .84rem; font-weight: 600; cursor: pointer; transition: all .2s;
  font-family: var(--font-body, sans-serif);
}
.dh-pill:hover { border-color: var(--dh-green); color: var(--dh-green); }
.dh-pill[aria-pressed="true"], .dh-pill.is-active {
  background: var(--dh-green); border-color: var(--dh-green); color: #fff;
}

/* ───────────────────────── Card grid ───────────────────────── */
.dh-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(3, 1fr); }
.dh-grid--2 { grid-template-columns: repeat(2, 1fr); }
.dh-grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1000px) { .dh-grid, .dh-grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .dh-grid, .dh-grid--2, .dh-grid--4 { grid-template-columns: 1fr; } }

.dh-card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--dh-line);
  border-radius: var(--dh-radius); padding: 1.6rem;
  box-shadow: var(--dh-shadow); text-decoration: none; color: inherit;
  transition: transform .3s, box-shadow .3s, border-color .3s;
  position: relative; overflow: hidden;
}
.dh-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--dh-accent, var(--dh-green)); transform: scaleY(0); transform-origin: top;
  transition: transform .3s;
}
.dh-card:hover { transform: translateY(-5px); box-shadow: var(--dh-shadow-lg); border-color: transparent; }
.dh-card:hover::before { transform: scaleY(1); }
.dh-card__icon {
  width: 50px; height: 50px; border-radius: .9rem; display: flex; align-items: center; justify-content: center;
  background: var(--dh-accent-soft, var(--dh-green-lite)); margin-bottom: 1.1rem; flex-shrink: 0;
}
.dh-card__icon svg { width: 26px; height: 26px; color: var(--dh-accent, var(--dh-green)); }
.dh-card__kicker { font-size: .68rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--dh-accent, var(--dh-green)); margin-bottom: .45rem; }
.dh-card__title { font-family: var(--font-headline, serif); font-size: 1.28rem; font-weight: 650; line-height: 1.25; margin: 0 0 .55rem; }
.dh-card__desc { font-size: .92rem; line-height: 1.6; color: var(--dh-muted); margin: 0 0 1.1rem; flex: 1; }
.dh-card__more { display: inline-flex; align-items: center; gap: .4rem; font-size: .85rem; font-weight: 700; color: var(--dh-accent, var(--dh-green)); margin-top: auto; }
.dh-card__more svg { width: 15px; height: 15px; transition: transform .25s; }
.dh-card:hover .dh-card__more svg { transform: translateX(4px); }
.dh-card__tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .9rem; }
.dh-tag { font-size: .68rem; font-weight: 650; padding: .25rem .6rem; border-radius: 2rem; background: var(--dh-line-soft); color: var(--dh-ink-soft); }

/* mini link list cards (cluster) */
.dh-cluster { background:#fff; border:1px solid var(--dh-line); border-radius: var(--dh-radius); padding: 1.7rem; box-shadow: var(--dh-shadow); }
.dh-cluster__head { display: flex; align-items: center; gap: .8rem; margin-bottom: 1.1rem; }
.dh-cluster__head .dh-card__icon { margin-bottom: 0; }
.dh-cluster__title { font-family: var(--font-headline, serif); font-size: 1.35rem; font-weight: 650; margin: 0; }
.dh-linklist { list-style: none; margin: 0; padding: 0; }
.dh-linklist li { border-top: 1px solid var(--dh-line-soft); }
.dh-linklist li:first-child { border-top: none; }
.dh-linklist a { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .72rem 0; color: var(--dh-ink); text-decoration: none; font-size: .92rem; font-weight: 550; transition: color .2s, padding .2s; }
.dh-linklist a:hover { color: var(--dh-green); padding-left: .35rem; }
.dh-linklist a span { color: var(--dh-muted); font-size: .8rem; font-weight: 500; }
.dh-linklist a svg { width: 15px; height: 15px; color: var(--dh-green); opacity: 0; transition: opacity .2s, transform .2s; }
.dh-linklist a:hover svg { opacity: 1; transform: translateX(3px); }

/* ───────────────────────── Quick answer (AI-extractable) ───────────────────────── */
.dh-quick {
  border: 2px solid var(--dh-green-lite); background: linear-gradient(180deg,#f3faf8,#fff);
  border-radius: var(--dh-radius); padding: 1.7rem 1.8rem;
}
.dh-quick__label { display:flex; align-items:center; gap:.5rem; font-size: .72rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--dh-green); margin-bottom: .8rem; }
.dh-quick p { font-size: 1.06rem; line-height: 1.7; color: var(--dh-ink); margin: 0; font-weight: 450; }
.dh-quick strong { font-weight: 700; }

/* ───────────────────────── At-a-glance facts ───────────────────────── */
.dh-facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
@media (max-width: 820px) { .dh-facts { grid-template-columns: repeat(2,1fr); } }
.dh-fact { background:#fff; border:1px solid var(--dh-line); border-radius: 1rem; padding: 1.2rem; }
.dh-section--green .dh-fact { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.16); }
.dh-fact b { display: block; font-family: var(--font-headline, serif); font-size: 1.6rem; line-height: 1; margin-bottom: .35rem; color: var(--dh-green); }
.dh-section--green .dh-fact b { color: var(--dh-primary-fixed, #89f5e7); }
.dh-fact span { font-size: .82rem; color: var(--dh-muted); line-height: 1.4; }
.dh-section--green .dh-fact span { color: rgba(255,255,255,.78); }

/* ───────────────────────── FAQ accordion ───────────────────────── */
.dh-faq { max-width: 820px; margin: 0 auto; }
.dh-faq__item { border: 1px solid var(--dh-line); border-radius: 1rem; background:#fff; margin-bottom: .8rem; overflow: hidden; }
.dh-faq__q {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.15rem 1.4rem; font-size: 1.02rem; font-weight: 650; color: var(--dh-ink);
  font-family: var(--font-body, sans-serif);
}
.dh-faq__q svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--dh-green); transition: transform .3s; }
.dh-faq__item.is-open .dh-faq__q svg { transform: rotate(45deg); }
.dh-faq__a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.dh-faq__a-inner { padding: 0 1.4rem 1.3rem; color: var(--dh-ink-soft); line-height: 1.7; font-size: .96rem; }
.dh-faq__a-inner a { color: var(--dh-green); font-weight: 600; }

/* ───────────────────────── Comparison table ───────────────────────── */
.dh-tablewrap { overflow-x: auto; border-radius: var(--dh-radius); border: 1px solid var(--dh-line); box-shadow: var(--dh-shadow); background:#fff; }
.dh-table { width: 100%; border-collapse: collapse; min-width: 560px; }
.dh-table th, .dh-table td { padding: 1rem 1.2rem; text-align: left; vertical-align: top; font-size: .92rem; line-height: 1.55; }
.dh-table thead th { background: var(--dh-green); color: #fff; font-weight: 650; font-size: .82rem; letter-spacing: .03em; }
.dh-table thead th:first-child { background: var(--dh-green-deep); }
.dh-table tbody tr:nth-child(even) { background: var(--dh-line-soft); }
.dh-table td:first-child, .dh-table th:first-child { font-weight: 650; color: var(--dh-ink); }
.dh-table .dh-win { color: var(--dh-green); font-weight: 700; }

/* ───────────────────────── Geology / seasonal timeline ───────────────────────── */
.dh-timeline { position: relative; padding-left: 2rem; }
.dh-timeline::before { content:""; position:absolute; left: 7px; top: .4rem; bottom: .4rem; width: 2px; background: linear-gradient(var(--dh-green), var(--dh-line)); }
.dh-tl { position: relative; padding: 0 0 1.8rem; }
.dh-tl:last-child { padding-bottom: 0; }
.dh-tl::before { content:""; position:absolute; left: -1.65rem; top: .3rem; width: 16px; height: 16px; border-radius: 50%; background:#fff; border: 3px solid var(--dh-green); }
.dh-tl__era { font-size: .73rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--dh-green); }
.dh-tl__title { font-family: var(--font-headline, serif); font-size: 1.2rem; font-weight: 650; margin: .15rem 0 .4rem; }
.dh-tl__body { color: var(--dh-muted); line-height: 1.65; font-size: .94rem; }

/* seasonal "what to see" strip */
.dh-season { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; }
@media (max-width: 820px){ .dh-season { grid-template-columns: repeat(2,1fr);} }
@media (max-width: 480px){ .dh-season { grid-template-columns: 1fr;} }
.dh-season__card { background:#fff; border:1px solid var(--dh-line); border-radius: 1rem; padding: 1.3rem; }
.dh-season__card h4 { margin: 0 0 .6rem; font-family: var(--font-headline, serif); font-size: 1.15rem; display:flex; align-items:center; gap:.5rem; }
.dh-season__card ul { margin: 0; padding-left: 1.1rem; color: var(--dh-muted); font-size: .9rem; line-height: 1.7; }

/* ───────────────────────── Related resources / CTA ───────────────────────── */
.dh-related { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
@media (max-width: 820px){ .dh-related { grid-template-columns: 1fr; } }
.dh-related a { display:flex; align-items:center; gap:.8rem; padding: 1rem 1.2rem; background:#fff; border:1px solid var(--dh-line); border-radius: 1rem; text-decoration:none; color: var(--dh-ink); font-weight: 600; font-size: .93rem; transition: border-color .2s, transform .2s; }
.dh-related a:hover { border-color: var(--dh-green); transform: translateY(-2px); }
.dh-related svg { width: 20px; height: 20px; color: var(--dh-green); flex-shrink: 0; }

.dh-cta {
  background: linear-gradient(135deg, var(--dh-green), var(--dh-green-deep));
  color:#fff; border-radius: 1.6rem; padding: clamp(2.2rem,5vw,3.5rem); text-align: center;
}
.dh-cta h2 { font-family: var(--font-headline, serif); font-size: clamp(1.7rem,3vw,2.4rem); margin: 0 0 .8rem; }
.dh-cta p { color: rgba(255,255,255,.85); max-width: 56ch; margin: 0 auto 1.8rem; line-height: 1.65; }
.dh-cta .dh-hero__actions { justify-content: center; }
.dh-cta .dh-btn--solid { background:#fff; color: var(--dh-green-deep); box-shadow: 0 12px 30px rgba(0,0,0,.2); }
.dh-cta .dh-btn--glass { border-color: rgba(255,255,255,.5); }

/* prose helper for body sections */
.dh-prose p { font-size: 1.04rem; line-height: 1.8; color: var(--dh-ink-soft); margin: 0 0 1.1rem; }
.dh-prose h3 { font-family: var(--font-headline, serif); font-size: 1.45rem; margin: 2rem 0 .7rem; color: var(--dh-ink); }
.dh-prose a { color: var(--dh-green); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.dh-prose ul { padding-left: 1.2rem; line-height: 1.8; color: var(--dh-ink-soft); }
.dh-prose strong { color: var(--dh-ink); }

/* breadcrumb */
.dh-crumb { font-size: .82rem; color: var(--dh-muted); padding: 1rem 0 0; }
.dh-crumb a { color: var(--dh-green); text-decoration: none; }
.dh-crumb a:hover { text-decoration: underline; }

/* Today live conditions module */
.dh-today { display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.5rem; align-items: center; }
@media (max-width: 820px){ .dh-today { grid-template-columns: 1fr; } }
.dh-today__panel { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: var(--dh-radius); padding: 1.6rem; }
.dh-today__row { display:flex; align-items:center; gap:.6rem; padding:.55rem 0; border-top:1px solid rgba(255,255,255,.12); font-size:.95rem; }
.dh-today__row:first-child { border-top:none; }
.dh-today__row svg { width:18px;height:18px;color:var(--dh-primary-fixed,#89f5e7); flex-shrink:0; }
.dh-today__live { display:inline-flex;align-items:center;gap:.45rem;font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase; }
.dh-today__live i { width:8px;height:8px;border-radius:50%;background:#6bffd8;animation: dhPulse 2s infinite; }
@keyframes dhPulse { 0%{box-shadow:0 0 0 0 rgba(107,255,216,.6);} 70%{box-shadow:0 0 0 7px rgba(107,255,216,0);} 100%{box-shadow:0 0 0 0 rgba(107,255,216,0);} }

/* utility spacing */
.dh-mt-sm { margin-top: 1rem; } .dh-mt { margin-top: 2rem; } .dh-mt-lg { margin-top: 3rem; }
.dh-mb { margin-bottom: 2rem; } .dh-mb-lg { margin-bottom: 3rem; }

/* ───────────────────────── Scroll reveal ───────────────────────── */
.dh-reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.dh-reveal.is-in { opacity: 1; transform: none; }
.dh-reveal[data-delay="1"]{ transition-delay:.08s; }
.dh-reveal[data-delay="2"]{ transition-delay:.16s; }
.dh-reveal[data-delay="3"]{ transition-delay:.24s; }

.dh-empty { display:none; text-align:center; color: var(--dh-muted); padding: 2.5rem 0; font-size: 1rem; }

@media (prefers-reduced-motion: reduce) {
  .dh-reveal { opacity: 1 !important; transform: none !important; }
  .dh-card:hover, .dh-btn:hover, .dh-related a:hover { transform: none; }
  .dh-today__live i { animation: none; }
}