/* Reusable UI atoms: section shell, eyebrow label, headline highlight, buttons,
   tag/meta lists, chips, key-value list. Anything that can appear on multiple
   pages lives here. */

/* ── section shell ────────────────────────────────────────────────────── */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(72px, 10vw, 128px) var(--pad);
  border-top: 1px solid var(--rule);
  position: relative;
}
.section-alt { background: var(--bg-deep); border-top: none; }

.section-head {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: clamp(48px, 6vw, 72px);
  max-width: 760px;
}
.section-title {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(34px, 4.5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0;
  text-wrap: pretty;
}
.section-title-dark { color: #ffffff; }

.section-lede {
  font-size: 16.5px;
  line-height: 1.6;
  color: var(--ink-3);
  margin: 0;
  max-width: 60ch;
}
.section-lede-dark { color: #b0b0b0; }

/* ── eyebrow label ────────────────────────────────────────────────────── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--brand-ink);
  font-weight: 500;
}
.eyebrow span { color: var(--brand); font-weight: 600; }
.eyebrow-dark { color: var(--brand); }

/* ── highlighter on key headline word ─────────────────────────────────── */
.hl-accent {
  color: var(--brand-ink);
  background: linear-gradient(180deg, transparent 60%, var(--brand-soft) 60%);
  padding: 0 4px;
  margin: 0 -2px;
}
.section-dark .hl-accent {
  color: var(--brand);
  background: rgba(45, 202, 61, 0.12);
}

/* ── buttons ──────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 13px 20px;
  background: var(--ink);
  color: #ffffff;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: all .18s;
}
.btn-primary:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: var(--ink);
}
.btn-primary:disabled { opacity: .5; cursor: wait; }
.btn-primary .arrow { transition: transform .2s; }
.btn-primary:hover .arrow { transform: translateX(3px); }

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 4px;
  transition: border-color .18s, color .18s;
}
.btn-link:hover { border-color: var(--brand); color: var(--brand-ink); }

/* ── tag / meta lists ─────────────────────────────────────────────────── */
.tags,
.meta-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.tags li {
  font-family: var(--mono);
  font-size: 10.5px;
  padding: 3px 8px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--ink-2);
  background: var(--paper);
  letter-spacing: 0.01em;
}
.meta-list li {
  font-family: var(--mono);
  font-size: 10.5px;
  padding: 3px 8px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--ink-3);
}

/* ── chip (toggleable tag) ────────────────────────────────────────────── */
.chips { display: flex; flex-wrap: wrap; gap: 5px; }
.chip {
  appearance: none;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-3);
  padding: 6px 11px;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 11.5px;
  cursor: pointer;
  transition: all .15s;
}
.chip:hover { border-color: var(--ink-3); color: var(--ink); }
.chip.is-on { background: var(--ink); color: var(--brand); border-color: var(--ink); }

/* ── key-value list ───────────────────────────────────────────────────── */
.kv-list {
  margin: 0;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--rule);
  padding-top: 20px;
  font-family: var(--mono);
  font-size: 13px;
}
.kv-list > div {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
  align-items: baseline;
}
.kv-list dt {
  color: var(--ink-3);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.kv-list dd { margin: 0; color: var(--ink); }
.kv-list a { border-bottom: 1px solid var(--rule); }
.kv-list a:hover { border-color: var(--brand); }