/* Daily Fables — dark chrome, warm paper reading. */
:root {
  --ink: #12100e;
  --ink-soft: #211c17;
  --paper: #faf6f0;
  --paper-2: #f2ebe2;
  --line: #ddd2c5;
  --line-2: #e8dfd4;
  --muted: #6f6558;
  --dim: #8a7f74;
  --dim-2: #9a8f83;
  --lit: #f4ece3;
  --seal: #9c3a22;
  --clay: #c9a08c;
  --serif: Newsreader, 'EB Garamond', Georgia, serif;
  --hand: 'LXGW WenKai', Newsreader, serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--seal); text-decoration: none; }
a:hover { color: var(--ink); }
::selection { background: #f0dfd2; color: var(--ink); }
img { max-width: 100%; }
h1, h2, h3 { font-weight: 400; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 40px; }
.mono { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; }
.dim { color: var(--dim-2); }
.accent { color: var(--seal); }
.zh { font-family: var(--hand); }

/* ---- language switching (drives the section.zh / section.en blocks in posts) ---- */
[data-lang="en"] .zh-only, [data-lang="en"] .prose section.zh { display: none !important; }
[data-lang="zh"] .en-only, [data-lang="zh"] .prose section.en { display: none !important; }
[data-lang="zh"] .prose { font-family: var(--hand); line-height: 1.95; }

/* ---- top bar ---- */
.site-bar {
  position: sticky; top: 0; z-index: 40;
  background: rgba(18,16,14,0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(240,223,210,0.13);
}
.bar-inner { height: 64px; display: flex; align-items: center; gap: 40px; }
.wordmark { display: flex; align-items: baseline; gap: 10px; color: var(--lit); font-size: 20px; }
.wordmark:hover { color: var(--lit); }
.wordmark .mark-zh { font-family: var(--hand); font-size: 16px; color: var(--dim); }
.site-nav { flex: 1; display: flex; gap: 28px; }
.site-nav a {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--dim); transition: color 180ms;
}
.site-nav a:hover { color: var(--lit); }
.lang-switch { display: flex; border: 1px solid rgba(240,223,210,0.2); border-radius: 2px; overflow: hidden; }
.lang-switch button {
  appearance: none; border: 0; cursor: pointer; background: transparent; color: var(--dim);
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; padding: 7px 11px; transition: all 180ms;
}
.lang-switch button[data-set-lang="zh"] { font-family: var(--hand); font-size: 12px; }
.lang-switch button[aria-pressed="true"] { background: var(--lit); color: var(--ink); }

/* ---- hero ---- */
.hero { position: relative; overflow: hidden; background: var(--ink); }
.hero-home { min-height: 660px; display: flex; align-items: flex-end; }
.hero-fable { height: 74vh; min-height: 520px; }
.hero-art { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-home .hero-art { opacity: 0.5; }
.hero-fable .hero-art { opacity: 1; }
.hero-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(to top, var(--ink) 4%, rgba(18,16,14,0.82) 42%, rgba(18,16,14,0.35) 100%);
}
.hero-fable .hero-scrim {
  background: linear-gradient(to top, var(--ink) 2%, rgba(18,16,14,0.55) 45%, rgba(18,16,14,0.2) 100%);
}
.hero-body { position: relative; width: 100%; padding-bottom: 84px; }
.hero-body h1 {
  margin: 0; max-width: 900px; color: #f6efe6;
  font-size: clamp(40px, 5.6vw, 78px); line-height: 1.03; letter-spacing: -0.022em; text-wrap: pretty;
}
.hero-body h1.zh { font-size: clamp(34px, 5vw, 70px); line-height: 1.2; letter-spacing: 0.01em; }
.hero-sub { margin: 22px 0 0; font-size: 24px; color: #b3a698; }
.kicker {
  display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin: 0 0 30px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--clay);
}
.kicker.zh { font-family: var(--hand); font-size: 14px; text-transform: none; }
.kicker .rule { width: 34px; height: 1px; background: rgba(201,160,140,0.5); }
.kicker.accent { color: var(--seal); }
.kicker.accent .rule { background: var(--line); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin: 40px 0 0; }
.btn { padding: 14px 30px; background: #f6efe6; color: var(--ink); font-size: 17px; transition: all 200ms; }
.btn:hover { background: var(--seal); color: #f6efe6; }
.btn-ghost {
  padding: 13px 22px; border: 1px solid rgba(240,223,210,0.28); color: #d8cdc1;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; transition: all 200ms;
}
.btn-ghost:hover { border-color: #f6efe6; color: #f6efe6; }
.concept-tag {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--dim); padding-left: 8px;
}

/* ---- paper ---- */
.paper { background: var(--paper); padding-top: 96px; }
.paper-top { padding-top: 92px; padding-bottom: 130px; }
.section-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 20px;
  border-bottom: 1px solid var(--line); padding-bottom: 18px; margin-bottom: 52px;
}
.section-head-tight { margin-top: 104px; border-bottom: 0; border-top: 1px solid var(--line); padding: 18px 0 0; margin-bottom: 6px; }
.section-head h2 {
  margin: 0; font-family: var(--mono); font-size: 15px; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase; color: #5c5248;
}

/* ---- archive cards ---- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 56px 44px; }
.card { display: flex; flex-direction: column; gap: 9px; color: inherit; }
.card:hover { color: inherit; }
.card-art { display: block; aspect-ratio: 3 / 2; overflow: hidden; background: #e6ddd2; margin-bottom: 9px; }
.card-art > span {
  display: block; width: 100%; height: 100%;
  background-size: cover; background-position: center; filter: saturate(0.92);
  transition: transform 700ms cubic-bezier(0.2,0.7,0.2,1);
}
.card:hover .card-art > span { transform: scale(1.045); }
.card-meta { color: var(--dim-2); }
.card-title { font-size: 25px; line-height: 1.2; letter-spacing: -0.012em; color: #1a1613; text-wrap: pretty; }
.card-title.zh { line-height: 1.35; letter-spacing: 0; }
.card-concept { color: var(--seal); text-transform: uppercase; }

/* ---- earlier rows ---- */
.row-list { display: flex; flex-direction: column; }
.row {
  display: grid; grid-template-columns: 64px 110px 1fr 300px; gap: 20px; align-items: center;
  padding: 14px 12px; border-bottom: 1px solid var(--line-2); color: inherit; transition: background 200ms;
}
.row-thumb { width: 64px; height: 36px; overflow: hidden; border-radius: 4px; background: var(--paper-2); flex-shrink: 0; }
.row-thumb img { width: 100%; height: 100%; object-fit: cover; }
.row:hover { background: var(--paper-2); color: inherit; }
.row-title { font-size: 21px; line-height: 1.3; }
.row-title.zh { line-height: 1.5; }
.row-concept { text-align: right; color: #7a6f64; text-transform: uppercase; }

/* ---- fable article ---- */
.article { max-width: 940px; margin: 0 auto; }
.article-head { margin-top: -190px; background: var(--paper); padding: 60px 68px 0; position: relative; }
.article-head h1 {
  margin: 0; color: var(--ink);
  font-size: clamp(34px, 4.4vw, 62px); line-height: 1.06; letter-spacing: -0.022em; text-wrap: pretty;
}
.article-head h1.zh { font-size: clamp(30px, 4vw, 56px); line-height: 1.25; letter-spacing: 0; }
.article-sub { margin: 20px 0 0; font-size: 22px; color: var(--muted); }
.article-body { padding: 0 68px 120px; }
.fable-video { margin: 54px 0 12px; aspect-ratio: 16 / 9; background: var(--ink); }
.fable-video iframe { width: 100%; height: 100%; border: 0; display: block; }
.fable-video-caption { margin: 0 0 8px; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }
.fable-video-caption a { color: var(--seal); }

.prose { font-size: 21px; line-height: 1.68; margin-top: 46px; }
.prose > section > p, .prose > p { margin: 0 0 30px; text-wrap: pretty; }
.prose strong { font-weight: 500; }
.prose em { font-style: italic; }
.prose code {
  font-family: var(--mono); font-size: 0.78em; background: var(--paper-2);
  padding: 2px 5px; color: var(--ink);
}
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 60px 0 44px; }
.prose h2, .prose h3 {
  margin: 60px 0 18px; font-family: var(--mono); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--seal);
}
/* the bold run-in headings the posts use for 这是什么 / What it is */
.prose > section > p > strong:only-child {
  display: block; font-family: var(--mono); font-size: 11px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--seal);
  margin-top: 24px;
}
/* metaphor mapping: the trailing list of "image → mechanism" pairs */
.prose ul {
  list-style: none; margin: 34px 0 0; padding: 34px 40px 26px;
  background: var(--paper-2); font-size: 17px;
}
.prose ul li { padding: 14px 0; border-top: 1px solid #e0d6c9; line-height: 1.55; color: #4a4038; }
.prose ul li:first-child { border-top: 0; }
.prose ul li em { font-style: normal; font-family: var(--mono); font-size: 0.82em; color: var(--ink); }
.prose ul li code { background: transparent; padding: 0; }

.fable-nav {
  display: flex; justify-content: space-between; gap: 24px; margin-top: 72px;
  border-top: 1px solid var(--line); padding-top: 26px; letter-spacing: 0.08em;
}
.fable-nav a { color: #7a6f64; transition: color 180ms; }
.fable-nav a:hover { color: var(--seal); }
.fable-nav .right { margin-left: auto; text-align: right; }

/* ---- concepts + about ---- */
.page-body { max-width: 820px; }
.page-body h1 { margin: 0; color: var(--ink); font-size: clamp(34px, 4vw, 56px); line-height: 1.06; letter-spacing: -0.022em; }
.page-body h1.zh { font-size: clamp(30px, 3.6vw, 50px); line-height: 1.3; letter-spacing: 0; }
.page-body p { font-size: 19px; line-height: 1.66; color: #4a4038; }
.page-lede { font-size: 22px !important; line-height: 1.62 !important; color: var(--ink-soft) !important; margin: 30px 0 0; }
.page-body .zh p, .page-body p.zh { line-height: 1.95; }

.concept-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 56px 48px; margin-top: 70px; max-width: none;
}
.concept-group h2 {
  margin: 0 0 4px; font-size: 22px; color: var(--ink);
  border-bottom: 1px solid var(--line); padding-bottom: 14px;
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
}
.concept-group a {
  display: block; padding: 12px 8px; border-bottom: 1px solid #eae1d6;
  font-family: var(--mono); font-size: 13px; line-height: 1.4; color: #3d352d; transition: all 180ms;
}
.concept-group a:hover { background: var(--paper-2); color: var(--seal); }

.steps { margin: 72px 0 0; display: flex; flex-direction: column; gap: 40px; }
.step {
  display: grid; grid-template-columns: 90px 1fr; gap: 28px; align-items: start;
  border-top: 1px solid var(--line); padding-top: 26px;
}
.step > span:last-child { display: flex; flex-direction: column; gap: 8px; }
.step strong { font-weight: 400; font-size: 23px; color: var(--ink); }
.step span span { font-size: 18px; line-height: 1.6; color: #4a4038; }
.step .mono { letter-spacing: 0.14em; text-transform: uppercase; }
.note {
  margin-top: 80px; padding: 34px 36px; background: var(--paper-2);
  display: flex; flex-direction: column; gap: 14px;
}
.note .mono { letter-spacing: 0.14em; text-transform: uppercase; color: #5c5248; }
.note > span:last-child { font-size: 19px; line-height: 1.7; color: var(--ink-soft); }

/* ---- coffee ---- */
.coffee { margin-top: 110px; background: var(--ink); color: var(--lit); padding: 96px 40px; }
.coffee-inner { max-width: 720px; margin: 0 auto; text-align: center; }
.coffee .kicker { justify-content: center; }
.coffee h2 { margin: 0; font-size: clamp(28px, 3.4vw, 42px); line-height: 1.15; color: #f6efe6; }
.coffee h2.zh { line-height: 1.4; }
.bmc { display: inline-flex; margin-top: 42px; transition: transform 200ms; }
.bmc:hover { transform: translateY(-2px); }
.bmc img { height: 52px; width: auto; display: block; }
.coffee .fine { margin: 22px 0 0; font-size: 15px; color: var(--dim); }

/* ---- footer ---- */
.site-foot { background: var(--ink); border-top: 1px solid rgba(240,223,210,0.13); padding: 44px 0; }
.foot-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; color: var(--dim);
}
.foot-links { display: flex; gap: 24px; }
.foot-links a { color: var(--dim); transition: color 180ms; }
.foot-links a:hover { color: var(--lit); }

@media (max-width: 900px) {
  body { font-size: 17px; }
  .wrap { padding: 0 22px; }
  .bar-inner { height: auto; padding: 14px 0; flex-wrap: wrap; gap: 14px 20px; }
  .site-nav { gap: 16px; order: 3; width: 100%; }
  .hero-home { min-height: 520px; }
  .hero-body { padding-bottom: 54px; }
  .article-head { margin-top: -110px; padding: 32px 24px 0; }
  .article-body { padding: 0 0 80px; }
  .prose { font-size: 19px; }
  .prose ul { padding: 22px 20px 16px; }
  .row { grid-template-columns: 1fr; gap: 6px; }
  .row-concept { text-align: left; }
  .step { grid-template-columns: 1fr; gap: 10px; }
  .coffee { padding: 72px 22px; }
}