/* Golden Rate — The Almanac of Household Energy.
   Editorial ledger look: cream paper, column rules, serif headlines, warm gold. */

:root {
  --ink: #1b1510;
  --paper: #f8f1e2;
  --paper-2: #f2e8d1;
  --rule: #e3d5b0;
  --gold: #c7912b;
  --gold-deep: #9a6e1c;
  --moss: #425b3d;
  --flag: #b23a2c;
  --muted: #5e544a;
  --max: 1160px;
  --measure: 36rem;
  --serif: 'Playfair Display', 'Hoefler Text', Georgia, 'Times New Roman', serif;
  --sans: 'IBM Plex Sans', -apple-system, 'Segoe UI', Arial, sans-serif;
}

*,*::before,*::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--gold); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--gold-deep); }
.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--paper); padding: .5rem 1rem; }
.skip:focus { left: 0; z-index: 100; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

/* --- Masthead --- */
.masthead {
  background: var(--paper);
  border-top: 6px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.masthead .wrap {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding-top: .9rem;
  padding-bottom: .9rem;
}
.mast-left { font-family: var(--sans); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.mast-right { text-align: right; font-family: var(--sans); font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.mast-right a { text-decoration: none; }
.brand {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 3.2rem);
  letter-spacing: .01em;
  line-height: 1;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
}
.brand-mark { width: 44px; height: 44px; }
.brand-name { display: inline-block; }
.brand small { display: block; font-family: var(--sans); font-size: .62rem; letter-spacing: .25em; text-transform: uppercase; color: var(--moss); font-weight: 500; margin-top: .25rem; }

/* --- Nav --- */
.nav {
  background: var(--ink);
  color: var(--paper);
}
.nav-toggle { display: none; }
.nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 0; }
.nav-list li { border-right: 1px solid rgba(248,241,226,.2); }
.nav-list li:first-child { border-left: 1px solid rgba(248,241,226,.2); }
.nav-list a {
  display: block;
  padding: .85rem 1.1rem;
  color: var(--paper);
  text-decoration: none;
  font-family: var(--sans);
  font-size: .82rem;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.nav-list a:hover, .nav-list a[aria-current] { background: var(--gold); color: var(--ink); }
.nav-burger { display: none; }

/* --- Almanac strip (sub-header on home) --- */
.almanac {
  background: var(--paper-2);
  border-bottom: 1px solid var(--rule);
  font-family: var(--serif);
  font-style: italic;
  font-size: .95rem;
  padding: .55rem 0;
  text-align: center;
  color: var(--moss);
}
.almanac .sep { margin: 0 .5rem; color: var(--gold); }

/* --- Homepage --- */
.lead {
  padding: 2.4rem 0 1.4rem;
  border-bottom: 1px solid var(--rule);
}
.lead-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 2rem; }
.lead-article h1 { font-family: var(--serif); font-size: clamp(1.9rem, 4vw, 2.9rem); line-height: 1.12; margin: .3rem 0 .6rem; font-weight: 700; }
.lead-article h1 a { text-decoration: none; }
.lead-article .standfirst { font-family: var(--serif); font-style: italic; font-size: 1.12rem; color: var(--muted); margin: 0 0 1rem; }
.lead-img { margin-top: 1rem; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.lead-img img { width: 100%; }
.kicker { font-family: var(--sans); font-size: .72rem; letter-spacing: .22em; text-transform: uppercase; color: var(--gold-deep); font-weight: 600; }
.byline { font-family: var(--sans); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-top: .5rem; }

.digest {
  border-left: 1px solid var(--rule);
  padding-left: 1.6rem;
}
.digest-head { font-family: var(--serif); font-size: 1rem; font-style: italic; color: var(--moss); margin: 0 0 .9rem; border-bottom: 1px solid var(--rule); padding-bottom: .5rem; }
.digest ol { margin: 0; padding: 0; list-style: none; counter-reset: dig; }
.digest li { counter-increment: dig; padding: .7rem 0; border-bottom: 1px dashed var(--rule); display: grid; grid-template-columns: 2rem 1fr; gap: .7rem; }
.digest li:last-child { border-bottom: 0; }
.digest li::before { content: counter(dig, decimal-leading-zero); font-family: var(--serif); font-weight: 700; font-size: 1.3rem; color: var(--gold); }
.digest li h3 { margin: 0; font-family: var(--serif); font-weight: 600; font-size: 1.02rem; line-height: 1.25; }
.digest li h3 a { text-decoration: none; }
.digest li span { display: block; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-top: .25rem; }

/* --- Bulletins (cards) --- */
.bulletins { padding: 2rem 0 2.5rem; border-bottom: 1px solid var(--rule); }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 1.2rem; border-bottom: 2px solid var(--ink); padding-bottom: .6rem; }
.sec-head h2 { font-family: var(--serif); font-weight: 700; font-size: 1.6rem; margin: 0; }
.sec-head small { font-family: var(--sans); font-size: .74rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.card { border-top: 2px solid var(--ink); padding-top: .9rem; }
.card h3 { font-family: var(--serif); font-size: 1.22rem; line-height: 1.2; margin: .3rem 0 .4rem; font-weight: 700; }
.card h3 a { text-decoration: none; }
.card p { margin: 0 0 .6rem; font-size: .95rem; color: var(--muted); }
.card img { aspect-ratio: 16/10; object-fit: cover; }

/* --- Index list (homepage bottom + blog archive) --- */
.index-list { padding: 2rem 0 3rem; }
.index-list ul { list-style: none; margin: 0; padding: 0; }
.index-list li { display: grid; grid-template-columns: 7rem 1fr auto; gap: 1.2rem; align-items: baseline; padding: .95rem 0; border-bottom: 1px dotted var(--rule); }
.index-list .date { font-family: var(--serif); font-style: italic; color: var(--moss); font-size: .95rem; }
.index-list h3 { font-family: var(--serif); font-weight: 600; font-size: 1.15rem; margin: 0; line-height: 1.25; }
.index-list h3 a { text-decoration: none; }
.index-list .cat { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--gold-deep); }

/* --- Article layout --- */
.article-head {
  padding: 2.4rem 0 1.4rem;
  text-align: center;
  border-bottom: 1px solid var(--rule);
}
.article-head .kicker { display: block; margin-bottom: .6rem; }
.article-head h1 { font-family: var(--serif); font-weight: 700; font-size: clamp(2rem, 5vw, 3rem); line-height: 1.1; margin: .2rem auto .6rem; max-width: 24ch; }
.article-head .standfirst { font-family: var(--serif); font-style: italic; font-size: 1.2rem; color: var(--muted); max-width: 42rem; margin: 0 auto 1rem; }
.article-head .meta { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.article-head .meta span { margin: 0 .4rem; }
.article-hero { margin: 1.2rem auto 0; max-width: 980px; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.article-hero img { width: 100%; }
.article-hero figcaption { font-size: .78rem; color: var(--muted); padding: .5rem 0; text-align: left; }

.prose { max-width: var(--measure); margin: 2rem auto; padding: 0 1.25rem; font-size: 1.05rem; line-height: 1.75; }
.prose > p:first-of-type::first-letter {
  font-family: var(--serif);
  float: left;
  font-size: 3.6rem;
  line-height: .9;
  padding: .3rem .5rem 0 0;
  color: var(--gold);
  font-weight: 700;
}
.prose h2 { font-family: var(--serif); font-weight: 700; font-size: 1.55rem; line-height: 1.2; margin: 2.2rem 0 .7rem; border-top: 1px solid var(--rule); padding-top: 1.1rem; }
.prose h3 { font-family: var(--serif); font-weight: 700; font-size: 1.2rem; margin: 1.6rem 0 .5rem; }
.prose p, .prose li { color: #231d16; }
.prose p { margin: 0 0 1rem; }
.prose ul, .prose ol { padding-left: 1.3rem; margin: 0 0 1rem; }
.prose li { margin-bottom: .4rem; }
.prose blockquote {
  border-left: 3px solid var(--gold);
  padding: .3rem 0 .3rem 1.1rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.22rem;
  color: var(--ink);
  margin: 1.6rem 0;
}
.pullbox {
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  padding: 1rem 0;
  margin: 1.8rem 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--moss);
  text-align: center;
}
.prose figure { margin: 1.4rem 0; }
.prose figure img { border: 1px solid var(--rule); }
.prose figure svg { display: block; margin: 0 auto; max-width: 100%; height: auto; background: #fff; border: 1px solid var(--rule); }
.prose figcaption { font-size: .82rem; color: var(--muted); margin-top: .5rem; font-style: italic; }
.prose figcaption a { color: var(--muted); }

.endbox {
  max-width: var(--measure);
  margin: 2.5rem auto;
  padding: 1rem 1.25rem;
  background: var(--paper-2);
  border-left: 3px solid var(--moss);
  font-size: .95rem;
}
.endbox h3 { margin: 0 0 .3rem; font-family: var(--serif); font-size: 1.05rem; color: var(--moss); }
.endbox ul { margin: .3rem 0 0; padding-left: 1.2rem; }

/* Page head (non-article pages) */
.page-head {
  padding: 2.4rem 0 1.4rem;
  border-bottom: 1px solid var(--rule);
  text-align: center;
}
.page-head h1 { font-family: var(--serif); font-weight: 700; font-size: clamp(1.9rem, 4vw, 2.6rem); margin: .2rem 0 .5rem; }
.page-head p { max-width: 36rem; margin: 0 auto; color: var(--muted); font-family: var(--serif); font-style: italic; }
.page-body { max-width: var(--measure); margin: 2rem auto; padding: 0 1.25rem; font-size: 1.02rem; line-height: 1.7; }
.page-body h2 { font-family: var(--serif); font-size: 1.35rem; margin-top: 2rem; border-top: 1px solid var(--rule); padding-top: 1rem; }

/* --- 404 --- */
.err { text-align: center; padding: 4rem 1rem; }
.err h1 { font-family: var(--serif); font-size: 4rem; margin: 0 0 .4rem; color: var(--gold); }
.err h2 { font-family: var(--serif); font-size: 1.6rem; margin: 0 0 1rem; }

/* --- Footer --- */
.foot {
  border-top: 6px solid var(--ink);
  background: var(--paper);
  padding: 2rem 0 2.5rem;
  font-size: .9rem;
}
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; }
.foot h4 { font-family: var(--sans); font-size: .76rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin: 0 0 .7rem; }
.foot p, .foot li { color: #3a3028; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin-bottom: .35rem; }
.colophon { border-top: 1px solid var(--rule); margin-top: 1.6rem; padding-top: .9rem; font-family: var(--serif); font-style: italic; color: var(--muted); text-align: center; }

/* --- Credits list (about) --- */
.credits { font-size: .85rem; color: var(--muted); }
.credits li { margin-bottom: .4rem; }

/* --- Diagram helpers --- */
.diag-dial { fill: #fff; }
.diag-ink { stroke: var(--ink); fill: none; stroke-width: 1.4; }
.diag-gold { stroke: var(--gold); fill: none; stroke-width: 1.8; }
.diag-label { font-family: var(--sans); font-size: 12px; fill: var(--ink); }
.diag-val { font-family: var(--serif); font-size: 18px; font-weight: 700; fill: var(--ink); }

/* --- Responsive --- */
@media (max-width: 860px) {
  .lead-grid { grid-template-columns: 1fr; }
  .digest { border-left: 0; padding-left: 0; border-top: 1px solid var(--rule); padding-top: 1.2rem; }
  .cards { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .masthead .wrap { grid-template-columns: auto 1fr; }
  .mast-left, .mast-right { display: none; }
  .masthead .wrap { grid-template-columns: 1fr; justify-items: center; }
  .brand { font-size: 2rem; }
  .nav-burger {
    display: block;
    background: none; border: 0; color: var(--paper);
    width: 100%; text-align: left; padding: .75rem 1.25rem;
    font-family: var(--sans); font-size: .82rem; letter-spacing: .14em; text-transform: uppercase;
    cursor: pointer;
  }
  .nav-burger::after { content: " \25BE"; }
  .nav-toggle:checked ~ .nav-list { display: flex; }
  .nav-list { display: none; flex-direction: column; }
  .nav-list li, .nav-list li:first-child { border: 0; border-top: 1px solid rgba(248,241,226,.15); }
  .cards { grid-template-columns: 1fr; }
  .index-list li { grid-template-columns: 1fr; }
  .index-list .date { font-size: .78rem; }
  .foot-grid { grid-template-columns: 1fr; }
  .article-head h1 { font-size: 1.8rem; }
  .prose { font-size: 1rem; padding: 0 1rem; }
  .prose > p:first-of-type::first-letter { font-size: 2.8rem; }
}