@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/ibm-plex-mono-normal-400.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('fonts/ibm-plex-mono-normal-500.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/ibm-plex-mono-normal-600.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('fonts/ibm-plex-mono-normal-700.woff2') format('woff2');
}
@font-face {
  font-family: 'Newsreader';
  font-style: italic;
  font-weight: 400 600;
  font-display: swap;
  src: url('fonts/newsreader-italic-400-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Newsreader';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('fonts/newsreader-normal-400-600.woff2') format('woff2');
}

:root {
  --bg: #faf6ee;
  --ink: #1c1a16;
  --muted: #6b6357;
  --acc: #c1502e;
  --card: #fff;
  --border: #e4dccb;
  --divider: #efe9db;
  --dark-card: #1c1a16;
  --dark-ink: #faf6ee;
  --gold: #e2a94d;
  --mist: #fbeee4;
  --wrong: #b0443a;
  --right: #3d8a52;
  --blue: #4468b0;
  --drop-shadow: 0 10px 24px rgba(28, 26, 22, .12);
}
[data-theme="dark"] {
  --bg: #14120e;
  --ink: #f2ede2;
  --muted: #a89c8a;
  --card: #1f1b16;
  --border: #3a342b;
  --divider: #2e2a23;
  --dark-card: #26221c;
  --dark-ink: #f2ede2;
  --mist: #2c211a;
  --wrong: #d97b6f;
  --right: #74c08a;
  --blue: #86a6dc;
  --drop-shadow: 0 10px 24px rgba(0, 0, 0, .45);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.6 'Newsreader', Georgia, serif;
  transition: background .2s linear;
  padding-bottom: env(safe-area-inset-bottom);
}
a { color: inherit; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }
::selection { background: var(--acc); color: #fff; }

.mono { font-family: 'IBM Plex Mono', ui-monospace, monospace; }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
input[type="search"] { -webkit-appearance: none; appearance: none; }
input[type="search"]::-webkit-search-decoration, input[type="search"]::-webkit-search-cancel-button { -webkit-appearance: none; }
.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding-left: max(64px, env(safe-area-inset-left));
  padding-right: max(64px, env(safe-area-inset-right));
}

/* ---------- header ---------- */
.site-head { position: relative; padding-top: 40px; }
.site-head.tall { padding-top: 56px; }
.head-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 14px;
}
.brand {
  font: 600 15px 'IBM Plex Mono', monospace;
  letter-spacing: .14em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.head-side { display: flex; align-items: center; gap: 18px; }
.cats { display: flex; gap: 26px; }
.cats a {
  font: 500 13px 'IBM Plex Mono', monospace;
  color: var(--muted);
  text-decoration: none;
  transition: color .15s;
}
.cats a:hover, .cats a.on { color: var(--acc); }
.ibtn {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  background: none; border: none; border-radius: 10px;
  cursor: pointer; color: var(--ink);
}
.ibtn:hover { color: var(--acc); }
.ibtn svg { width: 19px; height: 19px; }
.sun { display: none; }
[data-theme="dark"] .sun { display: block; }
[data-theme="dark"] .moon { display: none; }
.sbtn { display: none; }

.cat-chips { display: none; }

/* ---------- search ---------- */
.searchbox { position: relative; }
.hero-search { margin: 44px 0 0; max-width: 620px; }
.hero-search input {
  width: 100%;
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 12px;
  padding: 18px 22px;
  font: 400 20px 'Newsreader', serif;
  color: var(--ink);
  outline: none;
}
.hero-search input::placeholder { color: var(--muted); opacity: .8; }
.head-search { width: 220px; }
.head-search input {
  width: 100%;
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 9px 13px;
  font: 400 15px 'Newsreader', serif;
  color: var(--ink);
  outline: none;
}
.head-search input:focus { border-color: var(--ink); }
.sdrop {
  position: absolute;
  left: 0; right: 0;
  top: calc(100% + 8px);
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 12px;
  overflow: hidden;
  z-index: 40;
  box-shadow: var(--drop-shadow);
  display: none;
}
.searchbox.open .sdrop { display: block; }
.head-search .sdrop { left: auto; right: 0; width: 400px; }
.sr {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 13px 20px;
  cursor: pointer;
  border-bottom: 1px solid var(--divider);
  text-decoration: none;
}
.sr:last-child { border-bottom: none; }
.sr.on, .sr:hover { background: var(--bg); }
.sr-t { font: 500 17px 'Newsreader', serif; color: var(--ink); }
.sr-h { font: 400 13px 'IBM Plex Mono', monospace; color: var(--muted); white-space: nowrap; }
.sr-empty { padding: 13px 20px; font: italic 400 16px 'Newsreader', serif; color: var(--muted); }
.sr.egg { cursor: default; justify-content: flex-start; align-items: center; }
.sr.egg .sr-h { margin-left: auto; }
.sr-pic {
  width: 40px; height: 40px;
  border-radius: 50%;
  object-fit: cover;
  flex: none;
  border: 1px solid var(--border);
}
.sr.egg .sr-t { color: var(--acc); }
.sr.egg .sr-h { font-style: italic; font-family: 'Newsreader', serif; font-size: 14px; }

/* ---------- rule page top ---------- */
.crumb {
  margin-top: 40px;
  font: 500 12px 'IBM Plex Mono', monospace;
  letter-spacing: .14em;
  color: var(--muted);
}
.crumb b { color: var(--acc); font-weight: 500; }
.title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 28px;
}
h1 {
  font: 400 66px/1.05 'Newsreader', serif;
  color: var(--ink);
  margin: 14px 0 0;
}
.def {
  font: 400 19px/1.55 'Newsreader', serif;
  color: var(--muted);
  margin: 14px 0 0;
  max-width: 46ch;
}
.badge {
  flex: none;
  background: var(--dark-card);
  color: var(--dark-ink);
  border-radius: 12px;
  padding: 16px 22px;
  text-align: center;
}
.badge-l { font: 500 11px 'IBM Plex Mono', monospace; letter-spacing: .14em; opacity: .6; }
.badge-v { font: 600 22px 'IBM Plex Mono', monospace; margin-top: 6px; white-space: nowrap; }

/* ---------- timeline diagram ---------- */
.tl { position: relative; height: 84px; margin: 48px 10px 8px; }
.tl-line { position: absolute; left: 0; right: 0; top: 39px; height: 2px; background: var(--ink); }
.tl-arrow {
  position: absolute; right: -4px; top: 33px;
  width: 0; height: 0;
  border-left: 12px solid var(--ink);
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
}
.tl-band {
  position: absolute; top: 34px; height: 12px; border-radius: 7px;
  background: repeating-linear-gradient(115deg, var(--acc) 0 7px, transparent 7px 13px);
  opacity: .5;
}
.tl-brk {
  position: absolute; top: 20px; height: 18px;
  border: 2px solid var(--acc);
  border-bottom: none;
  border-radius: 9px 9px 0 0;
}
.tl-pt {
  position: absolute; top: 0;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  text-align: center; white-space: nowrap;
}
.tl-lab { font: 600 13px 'IBM Plex Mono', monospace; color: var(--muted); letter-spacing: .04em; }
.tl-pt.hot .tl-lab { color: var(--acc); }
.tl-x { font: 700 22px 'IBM Plex Mono', monospace; color: var(--acc); line-height: 1; margin-top: 2px; }
.tl-dot { width: 13px; height: 13px; border-radius: 50%; background: var(--bg); border: 2px solid var(--ink); margin-top: 8px; }
.tl-dot.pulse {
  background: var(--acc); border-color: var(--acc);
  margin-top: 11px;
  animation: pulseDot 2.4s ease-in-out infinite;
}
.tl-dot.faint { border-style: dashed; border-color: var(--muted); }
.tl-cap { font: italic 400 16px 'Newsreader', serif; color: var(--ink); }
.tl-pt.dim .tl-cap { color: var(--muted); font-size: 15px; }
@keyframes pulseDot {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(193, 80, 46, .35); }
  50% { transform: scale(1.15); box-shadow: 0 0 0 8px rgba(193, 80, 46, 0); }
}

/* ---------- slot diagram ---------- */
.slots { display: flex; flex-direction: column; gap: 22px; margin: 44px 0 8px; }
.slot-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-start; }
.slot-row-lab {
  flex: 0 0 100%;
  font: 500 11px 'IBM Plex Mono', monospace;
  letter-spacing: .14em;
  color: var(--muted);
  margin-bottom: -2px;
}
.slot { display: flex; flex-direction: column; align-items: center; gap: 7px; }
.slot-box {
  padding: 11px 18px;
  border-radius: 10px;
  font: 400 19px 'Newsreader', serif;
  white-space: nowrap;
}
.slot-box.t-ink { background: var(--ink); color: var(--bg); }
.slot-box.t-acc { background: var(--acc); color: #fff; }
.slot-box.t-green { background: #3d8a52; color: #fff; }
.slot-box.t-blue { background: #4468b0; color: #fff; }
.slot-box.t-gold { background: #e2a94d; color: #1c1a16; }
.slot-box.t-mute { background: transparent; color: var(--muted); border: 1px dashed var(--border); }
.slot-lab { font: 500 10.5px 'IBM Plex Mono', monospace; letter-spacing: .1em; color: var(--muted); }

/* ---------- contrast diagram (articles) ---------- */
.contrast { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 44px 0 8px; }
.scene {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px 28px 24px;
  text-align: center;
}
.scene-t { font: 400 22px 'Newsreader', serif; color: var(--ink); }
.scene-t b { color: var(--acc); font-weight: 600; }
.scene-art { display: flex; justify-content: center; align-items: center; gap: 16px; margin: 24px 0 20px; min-height: 62px; }
.tok { width: 44px; height: 44px; border-radius: 50%; border: 2px solid var(--ink); }
.tok.pick { background: var(--acc); border-color: var(--acc); }
.tok.solo {
  background: var(--acc); border-color: var(--acc);
  box-shadow: 0 0 0 9px rgba(193, 80, 46, .16), 0 0 0 20px rgba(193, 80, 46, .07);
}
.scene-cap { font: italic 400 15px/1.5 'Newsreader', serif; color: var(--muted); }

/* ---------- nesting diagram (in/on/at) ---------- */
.nest { margin: 44px 0 8px; }
.nest-box { border-radius: 14px; padding: 18px 22px; }
.nest-box.n1 { background: var(--card); border: 1px solid var(--border); }
.nest-box.n2 { background: var(--bg); border: 1px solid var(--border); margin-top: 14px; }
.nest-box.n3 { background: var(--ink); color: var(--bg); margin-top: 14px; }
.nest-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.nest-k { font: 600 14px 'IBM Plex Mono', monospace; letter-spacing: .1em; color: var(--acc); }
.nest-box.n3 .nest-k { color: var(--gold); }
.nest-use { font: 500 11px 'IBM Plex Mono', monospace; letter-spacing: .12em; color: var(--muted); }
.nest-box.n3 .nest-use { color: var(--bg); opacity: .65; }
.nest-ex { font: italic 400 16px 'Newsreader', serif; color: var(--ink); margin-top: 6px; }
.nest-box.n3 .nest-ex { color: var(--bg); }

/* ---------- morph diagram (plurals, comparison) ---------- */
.morphs { display: flex; flex-direction: column; gap: 15px; margin: 44px 4px 8px; }
.morph { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; font: 400 24px 'Newsreader', serif; color: var(--ink); }
.m-arr { font: 400 15px 'IBM Plex Mono', monospace; color: var(--muted); }
.morph b { color: var(--acc); font-weight: 600; }
.m-note { margin-left: auto; font: 400 12.5px 'IBM Plex Mono', monospace; color: var(--muted); }

/* ---------- quantity diagram ---------- */
.qty { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 44px 0 8px; }
.qty-panel { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 24px 26px; }
.qty-label { font: 500 12px 'IBM Plex Mono', monospace; letter-spacing: .14em; color: var(--acc); margin-bottom: 18px; }
.qty-row { display: flex; align-items: center; gap: 7px; margin-top: 14px; min-height: 22px; }
.qty-row:first-of-type { margin-top: 0; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: var(--acc); flex: none; }
.dot.pale { background: transparent; border: 2px solid var(--muted); width: 10px; height: 10px; }
.bar { height: 14px; border-radius: 7px; background: var(--acc); flex: none; }
.bar.pale { background: transparent; border: 2px solid var(--muted); height: 12px; }
.qty-word { margin-left: auto; font: italic 400 16px 'Newsreader', serif; color: var(--ink); padding-left: 10px; white-space: nowrap; }

/* ---------- tense map ---------- */
.tmap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 44px 0 8px; }
.tmap-h { font: 600 12px 'IBM Plex Mono', monospace; letter-spacing: .14em; color: var(--muted); text-align: center; padding-bottom: 2px; }
.tm { border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; background: var(--card); display: block; text-decoration: none; }
.tm.off { background: transparent; }
.tm-n { font: 600 10.5px 'IBM Plex Mono', monospace; letter-spacing: .09em; color: var(--ink); }
.tm.off .tm-n { color: var(--muted); }
.tm-f { font: 500 12px 'IBM Plex Mono', monospace; color: var(--acc); margin-top: 7px; }
.tm.off .tm-f { color: var(--muted); }
.tm-e { font: italic 400 13.5px/1.45 'Newsreader', serif; color: var(--muted); margin-top: 7px; }
.tm-go { font: 500 11px 'IBM Plex Mono', monospace; letter-spacing: .1em; color: var(--acc); margin-top: 10px; }

/* ---------- forms card ---------- */
.forms {
  margin-top: 36px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 38px;
}
.sec-label { font: 500 12px 'IBM Plex Mono', monospace; letter-spacing: .14em; color: var(--acc); margin-bottom: 22px; }
.forms-grid { display: grid; grid-template-columns: 44px 1fr 220px; gap: 14px 18px; align-items: center; }
.f-sign { font: 600 20px 'IBM Plex Mono', monospace; white-space: nowrap; }
.f-sign.s-plus { color: var(--right); }
.f-sign.s-minus { color: var(--wrong); }
.f-sign.s-q { color: var(--blue); }
.f-sign.s-acc { color: var(--acc); }
.f-sign.s-gold { color: var(--gold); }
.f-sign.s-ink { color: var(--ink); }
.f-ex { font: 400 21px 'Newsreader', serif; color: var(--ink); }
.f-ex b { color: var(--acc); font-weight: 600; }
.f-note { font: 500 12.5px 'IBM Plex Mono', monospace; color: var(--muted); }
.forms-foot {
  margin-top: 22px;
  border-top: 1px solid var(--divider);
  padding-top: 16px;
  font: italic 400 16px/1.5 'Newsreader', serif;
  color: var(--muted);
}
.forms-foot b { font-style: normal; color: var(--ink); font-weight: 600; }

/* ---------- detail cards ---------- */
.details { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
.det { border-radius: 14px; padding: 28px 32px; }
.det.light { background: var(--card); border: 1px solid var(--border); }
.det.dark { background: var(--dark-card); color: var(--dark-ink); }
.det.dark .sec-label { color: var(--gold); }
.det .sec-label { margin-bottom: 18px; }
.det-rows { display: flex; flex-direction: column; gap: 12px; font: 400 17px/1.45 'Newsreader', serif; }
.det-rows > div { display: flex; justify-content: space-between; gap: 14px; }
.det-rows .r { color: var(--muted); text-align: right; }
.det.dark .det-rows .r { color: #a89c8a; }
.det.light b { color: var(--acc); font-weight: 600; }
.det.dark b { color: var(--gold); font-weight: 600; }
.det-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 24px; font: 400 17px 'Newsreader', serif; }
.det-text { font: 400 17px/1.6 'Newsreader', serif; }
.det-text p + p { margin-top: 10px; }
.det-text i { color: var(--muted); }

/* ---------- wide table card ---------- */
.tcard { margin-top: 20px; background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 28px 32px; }
.tcard.dark { background: var(--dark-card); color: var(--dark-ink); border: none; }
.tcard.dark .sec-label { color: var(--gold); }
.gtable { width: 100%; border-collapse: collapse; font: 400 17px 'Newsreader', serif; }
.gtable th {
  font: 500 11px 'IBM Plex Mono', monospace;
  letter-spacing: .13em;
  color: var(--muted);
  text-align: left;
  padding: 0 14px 10px 0;
  font-weight: 500;
}
.gtable td { padding: 9px 14px 9px 0; border-top: 1px solid var(--divider); vertical-align: baseline; }
.tcard.dark .gtable td { border-color: #3a342b; }
.gtable b { color: var(--acc); font-weight: 600; }
.tcard.dark .gtable b { color: var(--gold); }
.gtable .qm { font: 500 14px 'IBM Plex Mono', monospace; color: var(--muted); }
.vcols { columns: 3; column-gap: 30px; font: 400 16.5px 'Newsreader', serif; }
.vcols > div {
  break-inside: avoid;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 2px;
  border-bottom: 1px solid var(--divider);
}
.vcols i { color: var(--muted); text-align: right; }
.vcols b { font-weight: 600; }

/* ---------- signal words ---------- */
.signals { margin-top: 20px; display: flex; align-items: center; gap: 14px; row-gap: 12px; flex-wrap: wrap; }
.signals .sec-label { color: var(--muted); margin: 0; }
.chip {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 16px;
  font: italic 400 15px 'Newsreader', serif;
  color: var(--ink);
}

/* ---------- mistakes ---------- */
.mist { margin-top: 20px; background: var(--mist); border-radius: 14px; padding: 28px 32px; }
.mist .sec-label { margin-bottom: 16px; }
.mist-rows { display: flex; flex-direction: column; gap: 12px; font: 400 18px 'Newsreader', serif; }
.mrow { display: flex; gap: 14px; align-items: baseline; flex-wrap: wrap; }
.mrow s { color: var(--wrong); text-decoration-thickness: 1px; }
.mrow .fix { color: var(--right); }
.mrow .why { font: 400 13px 'IBM Plex Mono', monospace; color: var(--muted); }

/* ---------- prev / next ---------- */
.pn {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 34px 0 48px;
  font: 500 14px 'IBM Plex Mono', monospace;
}
.pn a { color: var(--muted); text-decoration: none; padding: 6px 0; }
.pn a:hover { color: var(--acc); }
.pn a.next { color: var(--acc); }

/* ---------- home ---------- */
.feature {
  display: block;
  text-decoration: none;
  margin-top: 56px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 40px 44px;
}
.feature-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.feature-k { font: 500 12px 'IBM Plex Mono', monospace; letter-spacing: .12em; color: var(--acc); }
.feature-t { font: 500 26px 'Newsreader', serif; color: var(--ink); }
.feature .tl { height: 84px; margin: 44px 10px 8px; }
.feature-cols { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; margin-top: 38px; }
.feature-cols > div {
  border-top: 2px solid var(--border);
  padding-top: 12px;
  font: 400 15px/1.55 'Newsreader', serif;
  color: var(--muted);
}
.feature-cols > div.hot { border-top-color: var(--acc); }
.feature-cols b { color: var(--ink); font-weight: 600; }
.feature-cols i { font-style: italic; }

.home-cat { margin-top: 60px; }
.cat-head { display: flex; align-items: baseline; gap: 14px; }
.cat-k { font: 600 12px 'IBM Plex Mono', monospace; letter-spacing: .16em; color: var(--acc); }
.cat-n { font: 400 11px 'IBM Plex Mono', monospace; color: var(--muted); letter-spacing: .1em; }
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 18px; }
.rcard {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px 20px;
  text-decoration: none;
}
.rcard-top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.rcard-num { font: 500 11px 'IBM Plex Mono', monospace; letter-spacing: .12em; color: var(--muted); }
.rcard-f { font: 500 12px 'IBM Plex Mono', monospace; color: var(--acc); white-space: nowrap; }
.rcard-t { font: 500 24px/1.2 'Newsreader', serif; color: var(--ink); margin: 10px 0 6px; }
.rcard-h { font: italic 400 15px/1.5 'Newsreader', serif; color: var(--muted); }

.foot {
  margin-top: 72px;
  border-top: 2px solid var(--ink);
  padding: 18px 0 52px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  font: 500 12px 'IBM Plex Mono', monospace;
  letter-spacing: .12em;
  color: var(--muted);
}
.foot .heart { color: var(--acc); }

/* ---------- scroll-in animation ---------- */
.anim.fade { opacity: 0; transform: translateY(12px); transition: opacity .5s ease-out, transform .5s ease-out; }
.anim.fade.in { opacity: 1; transform: none; }
.anim .slot { opacity: 0; transform: translateY(14px); transition: opacity .4s ease-out, transform .4s ease-out; transition-delay: var(--d, 0s); }
.anim.in .slot { opacity: 1; transform: none; }
.anim .tok { opacity: 0; transform: scale(.5); transition: opacity .35s ease-out, transform .35s cubic-bezier(.34, 1.56, .64, 1); transition-delay: var(--d, 0s); }
.anim.in .tok { opacity: 1; transform: none; }
.anim .morph b, .anim .morph .grow { display: inline-block; opacity: 0; transform: scale(.55); transition: opacity .35s ease-out, transform .35s cubic-bezier(.34, 1.56, .64, 1); transition-delay: var(--d, 0s); }
.anim.in .morph b, .anim.in .morph .grow { opacity: 1; transform: none; }
.anim .dot, .anim .bar { opacity: 0; transform: scale(.4); transition: opacity .3s ease-out, transform .3s cubic-bezier(.34, 1.56, .64, 1); transition-delay: var(--d, 0s); }
.anim.in .dot, .anim.in .bar { opacity: 1; transform: none; }
.anim .nest-box { opacity: 0; transform: scale(.97); transition: opacity .45s ease-out, transform .45s ease-out; transition-delay: var(--d, 0s); }
.anim.in .nest-box { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .anim.fade, .anim .slot, .anim .tok, .anim .morph b, .anim .morph .grow, .anim .dot, .anim .bar, .anim .nest-box { opacity: 1 !important; transform: none !important; }
}

/* ---------- mobile ---------- */
@media (max-width: 700px) {
  .wrap {
    padding-left: max(20px, env(safe-area-inset-left));
    padding-right: max(20px, env(safe-area-inset-right));
  }
  body { font-size: 17px; }
  .site-head, .site-head.tall { padding-top: 22px; }
  .head-bar { padding-bottom: 10px; gap: 8px; }
  .brand { font-size: 13px; }
  .cats { display: none; }
  .head-search { display: none; }
  .sbtn { display: grid; }
  .cat-chips {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    margin-top: 10px;
    padding-bottom: 4px;
    scrollbar-width: none;
  }
  .cat-chips::-webkit-scrollbar { display: none; }
  .cat-chips a {
    flex: none;
    font: 500 12px 'IBM Plex Mono', monospace;
    color: var(--muted);
    text-decoration: none;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--card);
  }
  .cat-chips a.on { color: var(--acc); border-color: var(--acc); }
  .msearch {
    position: absolute;
    left: max(20px, env(safe-area-inset-left));
    right: max(20px, env(safe-area-inset-right));
    top: 100%;
    z-index: 50;
  }
  .msearch input {
    width: 100%;
    background: var(--card);
    border: 2px solid var(--ink);
    border-radius: 12px;
    padding: 13px 16px;
    font: 400 17px 'Newsreader', serif;
    color: var(--ink);
    outline: none;
  }

  .crumb { margin-top: 30px; font-size: 11px; }
  .title-row { flex-direction: column; align-items: flex-start; gap: 0; }
  h1 { font-size: 40px; margin-top: 12px; }
  .def { font-size: 17px; }
  .badge { margin-top: 20px; padding: 13px 18px; }
  .badge-v { font-size: 19px; }

  .hero-search { margin-top: 30px; }
  .hero-search input { padding: 14px 16px; font-size: 17px; }
  .sr { padding: 13px 16px; }
  .sr-h { display: none; }
  .sr-t { font-size: 16px; }

  .tl { margin: 40px 6px 4px; height: 92px; }
  .tl-lab { font-size: 11px; }
  .tl-cap { font-size: 13.5px; }
  .tl-pt.dim .tl-cap { font-size: 13px; }
  .tl-x { font-size: 19px; }

  .slots { margin-top: 36px; gap: 20px; }
  .slot-box { font-size: 16.5px; padding: 10px 14px; white-space: normal; }
  .slot-lab { font-size: 9.5px; }

  .contrast, .qty, .details { grid-template-columns: 1fr; }
  .tmap { grid-template-columns: 1fr 1fr; }
  .tmap-h { display: none; }
  .morphs { margin-top: 36px; }
  .morph { font-size: 20px; }
  .m-note { flex: 0 0 100%; margin-left: 0; }

  .forms { padding: 22px 20px; margin-top: 30px; }
  .sec-label { margin-bottom: 18px; }
  .forms-grid { grid-template-columns: 32px 1fr; gap: 6px 12px; }
  .f-ex { font-size: 19px; }
  .f-note { grid-column: 2; margin: -2px 0 10px; }
  .forms-grid .f-note:last-child { margin-bottom: 0; }
  .det, .mist, .tcard { padding: 22px 20px; }
  .det-grid { grid-template-columns: 1fr; gap: 8px; }
  .vcols { columns: 2; column-gap: 22px; font-size: 15.5px; }
  .gtable { font-size: 15.5px; }
  .mist-rows { font-size: 16.5px; gap: 14px; }
  .mrow { gap: 8px 12px; }

  .feature { padding: 24px 20px; margin-top: 40px; }
  .feature-t { font-size: 21px; }
  .feature .tl { margin: 40px 6px 6px; }
  .feature-cols { grid-template-columns: 1fr; gap: 12px; margin-top: 28px; }

  .home-cat { margin-top: 44px; }
  .cards { grid-template-columns: 1fr; gap: 12px; }
  .rcard-t { font-size: 21px; margin-top: 8px; }

  .pn { font-size: 13px; padding: 28px 0 44px; }
  .pn a { padding: 10px 0; }
  .foot { margin-top: 56px; }
}

@media (max-width: 380px) {
  .tmap { grid-template-columns: 1fr; }
}