/* Aspenes — field guide to the trees of the world. Botanical notebook theme. */

:root {
  --paper: #f5f2e9;
  --paper-deep: #ece7d8;
  --ink: #1e2a23;
  --ink-soft: #4c5a50;
  --canopy: #1d3a2f;
  --canopy-2: #2c5342;
  --bark: #7a5a3c;
  --rule: #c8c2b0;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --mono: "SF Mono", "Cascadia Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--serif);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.7;
  font-size: 17px;
}

a { color: inherit; }

.wrap { max-width: 1020px; margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-head {
  background: var(--canopy);
  color: #f2efe6;
  border-bottom: 4px solid var(--canopy-2);
}
.canopy {
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--canopy-2) 0 26px, transparent 26px 44px);
  opacity: .35;
}
.head-row {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap; gap: 10px;
}
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand-leaf {
  width: 20px; height: 24px; align-self: center; display: inline-block;
  background: linear-gradient(140deg, #6b8e5a 0 45%, #8fa97a 45% 60%, #6b8e5a 60%);
  border-radius: 50% 0 50% 50%; transform: rotate(-12deg);
  border: 1px solid #a7bd92;
}
.brand-name { font-size: 1.28rem; letter-spacing: .16em; font-weight: 700; }
.brand-tag {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .22em;
  text-transform: uppercase; opacity: .75; margin-left: 4px;
}
.nav { display: flex; gap: 18px; flex-wrap: wrap; font-size: .92rem; }
.nav a { text-decoration: none; color: #d8e3d6; }
.nav a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- hero ---------- */
.hero { padding: 52px 0 30px; border-bottom: 1px solid var(--rule); }
.eyebrow {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--bark); margin: 0 0 10px;
}
.hero h1, main > h1 {
  font-size: 2.5rem; line-height: 1.15; margin: 0 0 14px; font-weight: 600;
}
.hero-sub { font-size: 1.15rem; color: var(--ink-soft); max-width: 52ch; margin: 0; }

/* ---------- category blocks ---------- */
.cat-block { margin: 40px 0; }
.cat-title {
  display: flex; align-items: baseline; gap: 14px;
  font-size: 1.5rem; margin: 0 0 6px; font-weight: 600;
  border-bottom: 1px solid var(--rule); padding-bottom: 8px;
}
.cat-no { font-family: var(--mono); font-size: .9rem; color: var(--ink-soft); font-weight: 400; }
.cat-blurb { color: var(--ink-soft); margin: 8px 0 18px; max-width: 66ch; }
.cat-blurb.big { font-size: 1.1rem; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }

.card {
  position: relative;
  display: flex; flex-direction: column; gap: 6px;
  border: 1.5px dashed var(--rule);
  border-left: 4px solid var(--accent, var(--bark));
  background: #faf8f0;
  padding: 14px 16px 16px;
  text-decoration: none;
  transition: transform .12s ease, box-shadow .12s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(30,42,35,.10); }
.card-no { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; color: var(--ink-soft); }
.card-name { font-size: 1.28rem; font-style: italic; font-weight: 600; line-height: 1.2; }
.card-meta {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .04em;
  text-transform: uppercase; color: var(--ink-soft); margin-top: 2px;
}

/* accent colors per biome */
.accent-temperate-deciduous { --accent: #6f8f5a; }
.accent-conifers-evergreens { --accent: #3a5f4e; }
.accent-tropical-palms { --accent: #c78f1f; }
.accent-mediterranean-arid { --accent: #c1753f; }
.accent-flowering-ornamental { --accent: #c06a8a; }

/* ---------- article ---------- */
.article { padding-bottom: 40px; }
.breadcrumb { font-size: .88rem; color: var(--ink-soft); margin: 26px 0 6px; }
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 8px; }

main > h1 { font-size: 2.3rem; margin-top: 6px; }
.zh {
  font-size: 1rem; font-weight: 400; color: var(--ink-soft);
  margin-left: 12px; font-style: normal; vertical-align: middle;
}
.lede { font-size: 1.12rem; color: var(--ink-soft); max-width: 62ch; margin: 0 0 26px; }

/* specimen (facts) card */
.specimen {
  position: relative;
  border: 1.5px solid var(--rule);
  border-top: 4px solid var(--accent, var(--bark));
  background: #faf8f0;
  padding: 22px 22px 18px;
  margin: 0 0 34px;
}
.specimen-corner {
  position: absolute; top: -1px; right: 0;
  display: flex; gap: 10px; align-items: baseline;
  font-family: var(--mono); font-size: .66rem; letter-spacing: .14em;
  color: var(--ink-soft); background: var(--paper-deep); padding: 4px 10px;
}
.sp-no { color: var(--accent, var(--bark)); }
.specimen-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px 22px; }
.specimen-item { display: flex; flex-direction: column; gap: 2px; }
.d-label {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--bark);
}
.sp-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .02em;
  border: 1px solid var(--rule); border-radius: 999px;
  padding: 2px 10px; text-decoration: none; color: var(--ink);
  background: #fff;
}
a.tag:hover { border-color: var(--accent, var(--bark)); color: var(--accent, var(--bark)); }
.tag-feature { background: var(--paper-deep); border-color: var(--paper-deep); }
.tag-dim { color: var(--ink-soft); opacity: .7; }

/* sections */
.sections { max-width: 720px; }
.sec { margin: 0 0 34px; }
.sec h2 {
  display: flex; align-items: baseline; gap: 12px;
  font-size: 1.3rem; margin: 0 0 12px; font-weight: 600;
}
.sec-no { font-family: var(--mono); font-size: .82rem; color: var(--accent, var(--bark)); font-weight: 400; }
.sec p { margin: 0 0 12px; color: #27342c; }
.sec p:last-child { margin-bottom: 0; }

.related-nav { max-width: 720px; margin-top: 42px; padding-top: 22px; border-top: 1px solid var(--rule); }
.related-nav h2 { font-size: 1.15rem; margin: 0 0 12px; }

.back { margin-top: 28px; font-size: .95rem; }
.back a { text-decoration: none; }
.back a:hover { text-decoration: underline; }

/* legal + notfound */
.legal, .notfound { max-width: 720px; padding-bottom: 48px; }
.legal h2 { font-size: 1.2rem; margin: 26px 0 8px; }
.legal p { margin: 0 0 14px; }
.notfound h1 { font-size: 2rem; }

/* ---------- footer ---------- */
.site-foot { background: var(--canopy); color: #cdd8cc; margin-top: 48px; }
.site-foot .wrap { padding-top: 26px; padding-bottom: 22px; }
.site-foot p { margin: 6px 0; font-size: .95rem; }
.foot-links { display: flex; gap: 10px; flex-wrap: wrap; }
.foot-links a { color: #e6efe3; text-decoration: none; }
.foot-links a:hover { text-decoration: underline; }
.foot-links span { opacity: .5; }
.foot-fine { font-family: var(--mono); font-size: .8rem; opacity: .7; }

@media (max-width: 640px) {
  .hero h1, main > h1 { font-size: 1.9rem; }
  .head-row { flex-direction: column; align-items: flex-start; }
  .nav { gap: 12px; }
}