/* =========================================================
   SCENTMECHANICS — Design Tokens
   Direction: specimen index / field-journal aesthetic.
   Herbarium record cards for ingredients, lab-notebook
   marginalia for articles. Distinct from both ParfumWorks
   (atelier/gold) and ScentSources (industrial/blueprint).
   ========================================================= */

:root {
  --paper:      #EAEBDF;
  --paper-dim:  #DEE0D0;
  --card:       #F5F5EC;
  --ink:        #2B3A2F;
  --ink-dim:    rgba(43,58,47,0.66);
  --ochre:      #B8863B;
  --ochre-deep: #92692A;
  --specimen:   #8B3A3A;
  --line:       rgba(43,58,47,0.18);

  --font-display: "Lora", "Georgia", serif;
  --font-body:    "Source Sans 3", "Inter", -apple-system, sans-serif;
  --font-mono:    "IBM Plex Mono", "Space Mono", monospace;

  --maxw: 1180px;
  --pad: clamp(1.25rem, 4vw, 3rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--font-body); font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }

h1, h2, h3, .display { font-family: var(--font-display); font-weight: 600; margin: 0 0 0.45em; }
.eyebrow { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ochre-deep); }
.log-no { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-dim); }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--paper); padding: 0.75em 1em; z-index: 999; }
.skip-link:focus { left: 1rem; top: 1rem; }
:focus-visible { outline: 2px solid var(--ochre); outline-offset: 2px; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--paper); border-bottom: 1px solid var(--line); }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; padding: 1.1rem var(--pad); max-width: var(--maxw); margin: 0 auto; }
.wordmark { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; font-style: italic; display: flex; align-items: baseline; gap: 0.5rem; }
.wordmark small { font-family: var(--font-mono); font-style: normal; font-size: 0.62rem; letter-spacing: 0.1em; color: var(--ochre-deep); text-transform: uppercase; font-weight: 400; }
.main-nav { display: flex; gap: 1.75rem; }
.main-nav a { font-size: 0.9rem; font-weight: 600; position: relative; padding: 0.25rem 0; }
.main-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: var(--specimen); transform: scaleX(0); transition: transform 0.15s ease; }
.main-nav a:hover::after, .main-nav a[aria-current]::after { transform: scaleX(1); }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5em; font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.03em; text-transform: uppercase; padding: 0.85em 1.5em; border-radius: 2px; border: 1px solid var(--ink); cursor: pointer; transition: all 0.15s ease; }
.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--specimen); border-color: var(--specimen); }
.btn-outline { background: transparent; color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }

/* ---------- Hero ---------- */
/* ---------- Cross-network banner ---------- */
.partner-banner { display: block; border: 1px solid var(--line); overflow: hidden; }
.partner-banner img { width: 100%; height: auto; display: block; transition: transform 0.3s ease; }
.partner-banner:hover img { transform: scale(1.015); }

.hero { padding: clamp(3rem, 8vw, 5.5rem) var(--pad) clamp(3rem, 7vw, 5rem); border-bottom: 1px solid var(--line); }
.hero .wrap { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 3rem; align-items: center; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.05; font-weight: 600; }
.hero h1 em { font-style: italic; color: var(--ochre-deep); }
.hero p.lede { font-size: 1.05rem; max-width: 48ch; color: var(--ink-dim); margin-bottom: 1.75rem; }
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Specimen card used in hero + ingredient detail */
.specimen-card { background: var(--card); border: 1px solid var(--line); padding: 1.5rem; position: relative; }
.specimen-card .frame-label { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-dim); display: flex; justify-content: space-between; margin-bottom: 1rem; padding-bottom: 0.6rem; border-bottom: 1px solid var(--line); }
.specimen-card .latin { font-family: var(--font-display); font-style: italic; font-size: 1.3rem; margin-bottom: 0.2rem; }
.specimen-card .common { font-size: 0.85rem; color: var(--ink-dim); margin-bottom: 1rem; }
.specimen-card .facts { display: grid; gap: 0.5rem; font-size: 0.85rem; }
.specimen-card .facts div { display: flex; justify-content: space-between; border-bottom: 1px dotted var(--line); padding-bottom: 0.35rem; }
.specimen-card .facts span:first-child { color: var(--ink-dim); font-family: var(--font-mono); font-size: 0.75rem; }

/* ---------- Sections ---------- */
.section { padding: clamp(3rem, 6vw, 4.5rem) var(--pad); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 1.75rem; flex-wrap: wrap; gap: 0.75rem; }
.section-head h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
.view-all { font-family: var(--font-mono); font-size: 0.78rem; border-bottom: 1px solid var(--ink); }

/* ---------- Category / topic grid ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.cat-card { background: var(--paper); padding: 2rem 1.5rem; min-height: 190px; display: flex; flex-direction: column; justify-content: flex-end; gap: 0.35rem; position: relative; transition: background 0.15s ease; }
.cat-card:hover { background: var(--card); }
.cat-card .num { font-family: var(--font-mono); font-size: 0.7rem; color: var(--ochre-deep); position: absolute; top: 1.5rem; left: 1.5rem; }
.cat-card h3 { font-size: 1.1rem; margin-bottom: 0; }
.cat-card span.sub { font-size: 0.82rem; color: var(--ink-dim); }
@media (max-width: 900px) { .cat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .cat-grid { grid-template-columns: 1fr; } }

/* ---------- Article cards ---------- */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
@media (max-width: 980px) { .article-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .article-grid { grid-template-columns: 1fr; } }
.article-card { display: flex; flex-direction: column; gap: 0.5rem; }
.article-card .thumb { aspect-ratio: 4/3; background: var(--card); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; margin-bottom: 0.5rem; }
.article-card .thumb .glyph { font-family: var(--font-display); font-style: italic; font-size: 1.8rem; color: var(--ochre); opacity: 0.6; }
.article-card h3 { font-size: 1.15rem; margin-bottom: 0.1em; }
.article-card p { font-size: 0.92rem; color: var(--ink-dim); margin: 0; }
.article-card .meta { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-dim); }

/* ---------- Ingredient specimen grid (glossary) ---------- */
.specimen-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 980px) { .specimen-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .specimen-grid { grid-template-columns: 1fr; } }
.specimen-mini { background: var(--card); border: 1px solid var(--line); padding: 1.25rem; display: flex; flex-direction: column; gap: 0.4rem; }
.specimen-mini .tag { font-family: var(--font-mono); font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--specimen); border: 1px solid var(--specimen); display: inline-block; padding: 0.15em 0.5em; align-self: flex-start; }
.specimen-mini .latin { font-family: var(--font-display); font-style: italic; font-size: 1.1rem; margin: 0.2em 0 0; }
.specimen-mini .common { font-size: 0.82rem; color: var(--ink-dim); }
.specimen-mini .log-no { margin-top: auto; padding-top: 0.5rem; border-top: 1px dotted var(--line); }

/* ---------- Filters ---------- */
.filter-bar { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 2rem; }
.filter-chip { font-family: var(--font-mono); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.03em; padding: 0.5em 1em; border: 1px solid var(--ink); background: var(--paper); cursor: pointer; }
.filter-chip.active { background: var(--ink); color: var(--paper); }

/* ---------- Breadcrumb ---------- */
.crumbs { font-family: var(--font-mono); font-size: 0.75rem; padding: 1rem var(--pad); color: var(--ink-dim); }
.crumbs a:hover { color: var(--ochre-deep); }

/* ---------- Article detail ---------- */
.article-wrap { max-width: 700px; }
.article-wrap p { margin: 0 0 1.2em; font-size: 1.03rem; color: var(--ink); }
.article-wrap p a, .ing-body p a { color: var(--ochre-deep); text-decoration: underline; text-decoration-color: rgba(184,134,59,0.4); text-underline-offset: 2px; }
.article-wrap p a:hover, .ing-body p a:hover { color: var(--specimen); }
.article-meta { display: flex; gap: 1rem; align-items: center; margin: 0.6rem 0 2rem; flex-wrap: wrap; font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-dim); }

/* ---------- Ingredient detail ---------- */
.ing-detail { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 3rem; }
@media (max-width: 800px) { .ing-detail { grid-template-columns: 1fr; } }
.ing-detail .specimen-card { position: sticky; top: 6rem; }
.ing-body p { margin: 0 0 1.1em; color: var(--ink-dim); }
.ing-body h3 { font-size: 1.15rem; margin-top: 1.5rem; }

/* ---------- Newsletter ---------- */
.newsletter { background: var(--paper-dim); text-align: center; }
.newsletter .wrap { max-width: 560px; }
.newsletter form { display: flex; gap: 0.6rem; margin-top: 1.25rem; }
.newsletter input[type="email"] { flex: 1; padding: 0.85em 1em; border: 1px solid var(--ink); background: var(--paper); font-family: var(--font-body); font-size: 0.95rem; }
@media (max-width: 480px) { .newsletter form { flex-direction: column; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: rgba(234,235,223,0.75); padding: 3rem var(--pad) 1.5rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid rgba(234,235,223,0.18); }
.footer-grid h4 { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--paper); margin-bottom: 1em; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.6rem; font-size: 0.9rem; }
.footer-grid a:hover { color: var(--ochre); }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 1.25rem; font-size: 0.8rem; flex-wrap: wrap; gap: 0.5rem; }
.footer-company { font-size: 0.82rem; padding-bottom: 1rem; border-bottom: 1px solid rgba(234,235,223,0.18); margin-bottom: 1rem; }
.footer-company a { color: rgba(234,235,223,0.85); text-decoration: underline; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

.pill { display: inline-block; font-family: var(--font-mono); font-size: 0.68rem; padding: 0.25em 0.6em; border: 1px solid var(--ink); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }