/* Paknam Formula Works — concept demo, round 2.
   Earth palette: mineral white, umber slate, raw clay, eucalyptus. Lab-calm, refined industrial. */

:root {
  /* Colour tokens */
  --bg: #EFEDE8;          /* mineral white */
  --paper: #F7F6F2;       /* lifted surface (fields) */
  --sunk: #E6E3DC;        /* image placeholder */
  --ink: #3B3631;         /* umber slate */
  --ink-2: #6B635B;       /* muted text, 5.0:1 on bg */
  --clay: #B08D6E;        /* raw clay: lines, decor only */
  --clay-ink: #836449;    /* clay for text, 4.6:1 on bg */
  --clay-soft: #CDBBA9;   /* inactive step numerals (decorative) */
  --euc: #8FA39A;         /* eucalyptus: decor */
  --euc-ink: #4E6158;     /* eucalyptus for text/marks, 5.6:1 */
  --night: #3B3631;
  --night-2: #2B2723;
  --on-night: #EFEDE8;
  --on-night-2: #C9C2B8;  /* 6.8:1 on night */
  --clay-night: #C4A68B;  /* 5.2:1 on night */
  --line: rgb(59 54 49 / .13);
  --line-2: rgb(59 54 49 / .26);
  --field: #8E867D;       /* form borders, 3.3:1 on paper */

  /* One radius knob */
  --radius: 1.25rem;
  --radius-sm: calc(var(--radius) - .5rem);

  /* Type */
  --f-display: "Bai Jamjuree", "IBM Plex Sans Thai Looped", system-ui, sans-serif;
  --f-body: "IBM Plex Sans Thai Looped", system-ui, -apple-system, "Segoe UI", sans-serif;
  --t-display: clamp(2.45rem, 1.4rem + 4.3vw, 5.6rem);
  --t-h1: clamp(2.2rem, 1.3rem + 3.6vw, 4.9rem);
  --t-h2: clamp(1.85rem, 1.2rem + 2.5vw, 3.6rem);
  --t-h3: clamp(1.3rem, 1.12rem + .65vw, 1.75rem);
  --t-lead: clamp(1.0625rem, 1rem + .3vw, 1.3rem);
  --t-body: 1rem;
  --t-small: .9375rem;

  /* Motion */
  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-io: cubic-bezier(.76, 0, .24, 1);

  /* Layout */
  --gutter: clamp(1.25rem, 4.5vw, 4.5rem);
  --wrap: 88rem;
  --wrap-left: max(var(--gutter), calc((100vw - var(--wrap)) / 2));
  --header-h: 4.5rem;
  --sec: clamp(5rem, 2.6rem + 9vw, 11rem);
}
@media (min-width: 1024px) {
  :root { --t-body: 1.0625rem; --header-h: 5rem; }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  color-scheme: light;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-tap-highlight-color: rgb(176 141 110 / .2);
  background: var(--bg);
  /* keep focused elements clear of the fixed header and the mobile contact bar */
  scroll-padding-top: calc(var(--header-h) + 1rem);
  scroll-padding-bottom: 5.5rem;
}
@media (min-width: 1024px) { html { scroll-padding-bottom: 1rem; } }
@media (pointer: fine) { html, body { overscroll-behavior: none; } }
a, button, summary, label, select, input, textarea { touch-action: manipulation; }
h2[id], section[id], article[id] { scroll-margin-top: calc(var(--header-h) + 1.5rem); }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: var(--t-body);
  font-weight: 400;
  line-height: 1.75;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(4.6rem + env(safe-area-inset-bottom));
}
html[lang="en"] body { line-height: 1.65; }
@media (min-width: 1024px) { body { padding-bottom: 0; } }
* { scrollbar-width: thin; scrollbar-color: rgb(59 54 49 / .3) transparent; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p { margin: 0 0 1em; }
h1, h2, h3 { margin: 0; font-weight: inherit; }
ul, ol { margin: 0; padding: 0; }
address { font-style: normal; }
b, strong { font-weight: 500; }
[hidden] { display: none !important; }
::selection { background: var(--clay-soft); color: var(--ink); }
:focus-visible { outline: 2px solid var(--clay-ink); outline-offset: 3px; border-radius: 3px; }
.on-night :focus-visible { outline-color: var(--clay-night); }
.vh {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Lenis */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }

/* Very soft paper grain (static) */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 95;
  pointer-events: none;
  opacity: .055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .23 0 0 0 0 .21 0 0 0 0 .19 0 0 0 1 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.skip {
  position: fixed; left: 1rem; top: 1rem; z-index: 120;
  padding: .75rem 1.25rem; border-radius: 999px;
  background: var(--ink); color: var(--bg); text-decoration: none;
  transform: translateY(-220%);
  transition: transform .4s var(--ease);
}
.skip:focus { transform: none; }

/* ---------- Layout ---------- */
.wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }
.sec { padding-block: var(--sec); }
.sec-top0 { padding-top: 0; }

/* ---------- Type ---------- */
.display, .h1, .h2, .h3 {
  font-family: var(--f-display);
  font-weight: 300;
  text-wrap: balance;
}
.display { font-size: var(--t-display); line-height: 1.26; letter-spacing: -.012em; }
.h1 { font-size: var(--t-h1); line-height: 1.28; letter-spacing: -.01em; }
.h2 { font-size: var(--t-h2); line-height: 1.3; letter-spacing: -.008em; }
.h3 { font-size: var(--t-h3); line-height: 1.42; }
html[lang="en"] .display, html[lang="en"] .h1 { line-height: 1.06; letter-spacing: -.028em; }
html[lang="en"] .h2 { line-height: 1.1; letter-spacing: -.02em; }
html[lang="en"] .h3 { line-height: 1.25; letter-spacing: -.005em; }
.lead { font-size: var(--t-lead); line-height: 1.75; max-width: 36rem; }
html[lang="en"] .lead { line-height: 1.6; }
.muted { color: var(--ink-2); }
.small { font-size: var(--t-small); }
.link {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .32em;
  text-decoration-color: var(--clay);
  transition: color .4s var(--ease), text-decoration-color .4s var(--ease);
}
.link:hover { color: var(--clay-ink); text-decoration-color: currentColor; }
/* standalone links get a full 44px tap target */
.link-solo { display: inline-flex; align-items: center; min-height: 2.75rem; }

/* Phrase masks for headline reveals (Thai phrases are wrapped by hand, never split into characters) */
.ph { display: block; overflow: hidden; padding: .16em 0 .4em; margin: -.16em 0 -.4em; }
.ph > span { display: inline-block; }

/* ---------- Reveal system (CSS transitions, toggled by IntersectionObserver) ---------- */
.reveal-on [data-split] .ph > span {
  opacity: 0;
  transform: translate3d(0, 150%, 0);
  transition: transform 1.25s var(--ease), opacity .9s var(--ease);
  transition-delay: calc(var(--i, 0) * .09s + var(--intro-delay, 0s));
}
.reveal-on [data-split].is-in .ph > span { opacity: 1; transform: none; }
.reveal-on [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 1.6rem, 0);
  transition: opacity 1.1s var(--ease), transform 1.3s var(--ease);
  transition-delay: calc(var(--d, 0s) + var(--intro-delay, 0s));
}
.reveal-on [data-reveal].is-in { opacity: 1; transform: none; }
.reveal-on [data-clip] {
  clip-path: inset(9% 6% 9% 6% round var(--radius));
  transition: clip-path 1.5s var(--ease-io);
  transition-delay: calc(var(--d, 0s) + var(--intro-delay, 0s));
}
.reveal-on [data-clip].is-in { clip-path: inset(0 0 0 0 round var(--radius)); }
.reveal-on [data-clip] img {
  transform: scale(1.14);
  transition: transform 2.2s var(--ease);
  transition-delay: calc(var(--d, 0s) + var(--intro-delay, 0s));
}
.reveal-on [data-clip].is-in img { transform: scale(1.001); }
/* Fallback: if script.js never takes over, show everything after 3 s */
.reveal-on:not(.reveal-ready) [data-reveal],
.reveal-on:not(.reveal-ready) [data-split] .ph > span,
.reveal-on:not(.reveal-ready) [data-clip],
.reveal-on:not(.reveal-ready) [data-clip] img {
  animation: reveal-fallback 0s linear 3s forwards;
}
@keyframes reveal-fallback { to { opacity: 1; transform: none; clip-path: none; } }

/* ---------- Intro (home only, once per session, pure CSS) ---------- */
.intro { display: none; }
.intro-on .intro {
  display: grid;
  place-items: center;
  position: fixed;
  inset: 0;
  z-index: 110;
  background: var(--bg);
  pointer-events: none;
  animation: intro-lift .55s var(--ease-io) .62s forwards;
}
.intro-in { display: grid; justify-items: center; gap: 1.1rem; color: var(--ink); }
.intro-in svg { width: 2.5rem; height: 2.5rem; }
.intro-name {
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(1.35rem, 1rem + 1.6vw, 2rem);
  clip-path: inset(0 100% 0 0);
  animation: intro-wipe .55s var(--ease-io) .04s forwards;
}
.intro-bar { position: relative; width: 8rem; height: 1px; background: var(--line-2); overflow: hidden; }
.intro-bar::after {
  content: ""; position: absolute; inset: 0; background: var(--clay-ink);
  transform: scaleX(0); transform-origin: left;
  animation: intro-fill .5s var(--ease) .1s forwards;
}
.intro-on .hero { --intro-delay: .72s; }
@keyframes intro-wipe { to { clip-path: inset(0 0 0 0); } }
@keyframes intro-fill { to { transform: scaleX(1); } }
@keyframes intro-lift { to { transform: translate3d(0, -101%, 0); visibility: hidden; } }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-h);
  color: var(--ink);
  transition: color .5s var(--ease);
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: rgb(239 237 232 / .84);
  -webkit-backdrop-filter: blur(14px) saturate(1.05);
  backdrop-filter: blur(14px) saturate(1.05);
  box-shadow: 0 1px 0 var(--line);
  opacity: 0;
  transition: opacity .6s var(--ease);
}
.site-header.is-scrolled::before { opacity: 1; }
.site-header.menu-open::before { opacity: 0; }
.site-header.menu-open { color: var(--on-night); }
.header-inner { height: 100%; display: flex; align-items: center; gap: clamp(.5rem, 2vw, 2rem); }
.brand {
  display: inline-flex; align-items: center; gap: .55rem;
  min-height: 2.75rem; margin-right: auto;
  text-decoration: none; color: inherit;
}
.brand svg { width: 1.6rem; height: 1.6rem; flex: none; }
.brand-name {
  font-family: var(--f-display); font-weight: 300;
  font-size: 1rem; line-height: 1.1; letter-spacing: .005em;
}
.bn-2 { display: block; }
@media (min-width: 480px) {
  .bn-2 { display: inline; }
  .brand-name { font-size: 1.0625rem; white-space: nowrap; }
  .brand svg { width: 1.75rem; height: 1.75rem; }
}
.lang { display: flex; align-items: center; font-size: .9375rem; font-weight: 500; }
.lang a, .lang span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 2.75rem; min-height: 2.75rem; padding: 0 .35rem;
}
.lang a { color: inherit; opacity: .72; text-decoration: none; transition: opacity .3s; }
.lang a:hover { opacity: 1; }
.lang span[aria-current] { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .4em; }
.header-inner .head-cta { display: none; }
.menu-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  min-width: 2.75rem; min-height: 2.75rem; padding: 0 .25rem;
  background: none; border: 0; color: inherit; cursor: pointer;
  font: 500 .9375rem/1 var(--f-body);
}
.menu-ico { position: relative; width: 1.35rem; height: .6rem; }
.menu-ico i {
  position: absolute; left: 0; right: 0; height: 1px; background: currentColor;
  transition: transform .6s var(--ease), top .6s var(--ease);
}
.menu-ico i:first-child { top: 0; }
.menu-ico i:last-child { top: 100%; }
.menu-open .menu-ico i:first-child { top: 50%; transform: rotate(45deg); }
.menu-open .menu-ico i:last-child { top: 50%; transform: rotate(-45deg); }
.menu-txt { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
@media (min-width: 480px) {
  .menu-txt { position: static; width: auto; height: auto; overflow: visible; clip: auto; }
}

/* Mobile curtain menu */
.site-nav {
  position: fixed;
  inset: 0;
  z-index: -1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: calc(var(--header-h) + 2rem) var(--gutter) calc(2.25rem + env(safe-area-inset-bottom));
  background: var(--night);
  color: var(--on-night);
  overscroll-behavior: contain;
  clip-path: inset(0 0 100% 0);
  visibility: hidden;
  transition: clip-path .9s var(--ease-io), visibility 0s linear .9s;
}
.site-nav.open { clip-path: inset(0 0 0 0); visibility: visible; transition: clip-path .9s var(--ease-io), visibility 0s; }
.site-nav ul { list-style: none; display: grid; gap: .1rem; }
.site-nav li { overflow: hidden; padding: .05em 0 .2em; }
.site-nav a {
  display: inline-block;
  font-family: var(--f-display); font-weight: 300;
  font-size: clamp(2rem, 1.4rem + 3vw, 3rem); line-height: 1.35;
  text-decoration: none; color: var(--on-night-2);
  transform: translate3d(0, 115%, 0);
  transition: transform .8s var(--ease), color .4s;
}
.site-nav.open a { transform: none; transition-delay: calc(.28s + var(--i, 0) * .06s), 0s; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--on-night); }
.nav-foot { display: flex; flex-wrap: wrap; gap: .25rem 1.5rem; margin-top: 2.5rem; font-size: var(--t-small); }
.nav-foot a { display: inline-flex; align-items: center; min-height: 2.75rem; color: var(--on-night-2); text-underline-offset: .3em; }

@media (min-width: 1024px) {
  .brand { margin-right: 0; }
  .site-nav {
    position: static; z-index: auto; display: block; margin-inline: auto; padding: 0;
    background: none; color: inherit; clip-path: none; visibility: visible; transition: none;
  }
  .site-nav ul { display: flex; gap: clamp(1.25rem, 2.2vw, 2.4rem); }
  .site-nav li { overflow: visible; padding: 0; }
  .site-nav a {
    position: relative; transform: none;
    font-family: var(--f-body); font-weight: 400; font-size: .9375rem; line-height: 1.4;
    color: var(--ink-2); padding: .7rem 0;
    transition: color .4s var(--ease);
  }
  .site-nav a::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: .45rem; height: 1px; background: currentColor;
    transform: scaleX(0); transform-origin: right; transition: transform .7s var(--ease);
  }
  .site-nav a:hover { color: var(--ink); }
  .site-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
  .site-nav a[aria-current="page"] { color: var(--ink); }
  .site-nav a[aria-current="page"]::after { transform: scaleX(1); }
  .nav-quote, .nav-foot, .menu-btn { display: none; }
  .header-inner .head-cta { display: inline-flex; }
}

/* Concept badge */
/* WCAG reflow at 320px: header must fit without horizontal scroll */
@media (max-width: 359.98px) {
  .lang a, .lang span { min-width: 2.5rem; padding: 0 .2rem; }
  .brand-name { font-size: .9375rem; }
  .brand svg { width: 1.4rem; height: 1.4rem; }
}

.concept { padding-top: calc(var(--header-h) + .25rem); }
.concept span {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .25rem .85rem .25rem .7rem;
  border: 1px solid var(--line-2); border-radius: 999px;
  font-size: .875rem; line-height: 1.6; color: var(--ink-2);
}
.concept span::before { content: ""; width: .4rem; height: .4rem; border-radius: 50%; background: var(--euc-ink); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .65rem;
  min-height: 3.25rem; padding: .8rem 1.7rem;
  border: 1px solid transparent; border-radius: 999px;
  font: 500 1rem/1.35 var(--f-body); text-align: center; text-decoration: none;
  cursor: pointer;
  transition: background-color .5s var(--ease), color .5s var(--ease), border-color .5s var(--ease);
}
.btn svg { width: 1.15rem; height: 1.15rem; flex: none; }
.btn-sm { min-height: 2.75rem; padding: .45rem 1.25rem; font-size: .9375rem; }
.btn-solid { background: var(--ink); color: var(--bg); }
.btn-solid:hover { background: var(--clay-ink); }
.btn-ghost { border-color: var(--field); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-light { background: var(--bg); color: var(--ink); }
.btn-light:hover { background: var(--clay-night); }
.btn-ghost-night { border-color: rgb(239 237 232 / .38); color: var(--on-night); }
.btn-ghost-night:hover { border-color: var(--on-night); }
.btn-row { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; }

/* ---------- Media ---------- */
.fig { margin: 0; }
.media {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  aspect-ratio: var(--ar, 4 / 3);
  border-radius: var(--radius);
  background: var(--sunk);
}
.media-inner { position: absolute; inset: -6% 0; }
.media img, .media picture { display: block; width: 100%; height: 100%; }
.media img { object-fit: cover; filter: saturate(.8) contrast(.95) sepia(.07); }
.media::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, rgb(176 141 110 / .1), rgb(59 54 49 / .18));
  mix-blend-mode: multiply;
}
.fig figcaption { margin-top: .9rem; max-width: 34rem; font-size: var(--t-small); line-height: 1.65; color: var(--ink-2); }

/* ---------- Home hero ---------- */
.hero { padding-top: clamp(2.75rem, 1rem + 9vh, 8rem); }
.hero .display { max-width: 14.5em; }
html[lang="en"] .hero .display { max-width: 13em; }
.hero-row { display: grid; gap: 2rem; margin-top: clamp(2rem, 1rem + 3vw, 3.5rem); }
.hero-row .lead { margin: 0; }
.hero-note { margin: 1rem 0 0; font-size: var(--t-small); color: var(--ink-2); }
@media (min-width: 900px) {
  .hero-row { grid-template-columns: minmax(0, 34rem) auto; justify-content: space-between; align-items: end; }
}
.hero-media { margin-top: clamp(3rem, 1.5rem + 5vw, 5.5rem); }
.hero-media .media { --ar: 4 / 5; }
@media (min-width: 720px) { .hero-media .media { --ar: 16 / 9; } }
@media (min-width: 1200px) { .hero-media .media { --ar: 21 / 10; } }
.hero-media figcaption { max-width: none; display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 2rem; }
.hero-media figcaption span:last-child { font-family: var(--f-display); }

/* ---------- Section heads ---------- */
.sec-head { display: grid; gap: 1.25rem; margin-bottom: clamp(2.5rem, 1.5rem + 4vw, 5rem); }
.sec-head > p, .sec-head .sub { margin: 0; max-width: 32rem; color: var(--ink-2); }
@media (min-width: 900px) {
  .sec-head.split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); align-items: end; column-gap: 3rem; }
}

/* ---------- Ledger (spec sheet rows) ---------- */
.sheet { display: grid; gap: clamp(2rem, 1rem + 4vw, 4rem); }
@media (min-width: 900px) { .sheet { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } }
.sheet-aside p { color: var(--ink-2); max-width: 26rem; margin: 1.25rem 0 0; }
.doc-code { display: block; margin-top: 1.25rem; font-size: .9375rem; font-weight: 500; color: var(--clay-ink); font-variant-numeric: tabular-nums; }
.ledger { margin: 0; border-top: 1px solid var(--line-2); }
.ledger > div {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1rem; align-items: baseline;
  padding: 1rem 0; border-bottom: 1px solid var(--line);
}
.ledger dt { font-size: var(--t-small); color: var(--ink-2); }
.ledger dd {
  margin: 0; text-align: right;
  font-family: var(--f-display); font-weight: 300;
  font-size: clamp(1.45rem, 1.15rem + 1.1vw, 2.2rem); line-height: 1.25;
  font-variant-numeric: tabular-nums;
}
.ledger dd small { margin-left: .4em; font-family: var(--f-body); font-size: .875rem; color: var(--ink-2); }
.note { font-size: .875rem; color: var(--ink-2); }

/* ---------- Sequences with a drawn line (vertical) ---------- */
.seq {
  --p: 1;
  --node: .85rem;
  position: relative;
  list-style: none;
  display: grid;
  gap: clamp(2.75rem, 2rem + 4vw, 4.5rem);
  padding-left: 2.75rem;
}
.seq::before, .seq::after {
  content: ""; position: absolute; z-index: 0;
  left: .55rem; top: var(--node); bottom: .5rem; width: 1px; background: var(--line-2);
}
.seq::after { width: 2px; left: calc(.55rem - .5px); background: var(--clay-ink); transform-origin: top; transform: scaleY(var(--p)); }
.seq > li { position: relative; z-index: 1; }
.seq > li::before {
  content: ""; position: absolute; left: calc(-2.75rem + .55rem - 5px); top: var(--node);
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--clay-ink); border: 1px solid var(--clay-ink);
  transition: background-color .6s var(--ease);
}
.seq.js-steps > li:not(.is-active)::before { background: var(--bg); }
/* hide the line below the last node */
.seq > li:last-child::after {
  content: ""; position: absolute; left: calc(-2.75rem + .55rem - 3px); width: 7px;
  top: calc(var(--node) + 7px); bottom: -2rem; background: var(--bg);
}

/* ---------- Signature: process strip ---------- */
.process { position: relative; padding-block: var(--sec); }
.process-pin { position: relative; }
.process-head { display: grid; gap: 1rem; margin-bottom: clamp(3rem, 2rem + 4vw, 5rem); }
.process-head .sub { margin: 0; max-width: 34rem; color: var(--ink-2); }
.process-count { display: none; }
.process-track { --node: calc(clamp(4.25rem, 2.8rem + 7vw, 7rem) * .4); }
.step-num {
  display: block;
  margin: 0 0 .9rem;
  font-family: var(--f-display); font-weight: 200;
  font-size: clamp(4.25rem, 2.8rem + 7vw, 7rem); line-height: .86; letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
  color: var(--clay-ink);
  transition: color .8s var(--ease);
}
.step-end-mark { display: block; width: clamp(3.75rem, 2.6rem + 6vw, 6rem); height: auto; margin: 0 0 .9rem; color: var(--clay-ink); transition: color .8s var(--ease); }
.js-steps .step:not(.is-active):not(.is-done) .step-num,
.js-steps .step:not(.is-active):not(.is-done) .step-end-mark { color: var(--clay-soft); }
.step-name { margin: 0 0 .45rem; }
.step-meta { display: flex; flex-wrap: wrap; gap: .35rem 1.1rem; margin: 0 0 .9rem; font-size: var(--t-small); color: var(--ink-2); }
.who { display: inline-flex; align-items: center; gap: .5rem; }
.who::before { content: ""; width: .55rem; height: .55rem; border-radius: 50%; background: var(--euc-ink); }
.who.you::before { background: transparent; border: 1.5px solid var(--clay-ink); }
.step-body > p { max-width: 30rem; margin: 0; }
.step-body .link { margin-top: .6rem; }
.step-fig { margin-top: 1.75rem; max-width: 22rem; }
.step-fig .media { --ar: 4 / 5; }
.step-io { display: grid; gap: .8rem; margin: 1.25rem 0 0; padding-top: 1rem; border-top: 1px solid var(--line); max-width: 30rem; }
.step-io dt { font-size: .875rem; color: var(--ink-2); }
.step-io dd { margin: 0; font-size: var(--t-small); line-height: 1.6; }
.process-rail { display: none; }

/* Horizontal mode (added by script.js on wide screens only) */
.process.is-h { padding: 0; }
.process.is-h .process-pin {
  height: 100vh;
  display: flex; flex-direction: column;
  padding: calc(var(--header-h) + clamp(1.25rem, 4vh, 3rem)) 0 clamp(1.25rem, 4vh, 2.75rem);
  overflow: hidden;
  overflow: clip; /* focus can't scroll a clipped box sideways */
  background: var(--bg);
}
.process.is-h .process-head {
  grid-template-columns: minmax(0, 1fr) auto; align-items: end; column-gap: 3rem;
  margin-bottom: 0;
}
.process.is-h .process-head .h2 { font-size: clamp(1.9rem, 1rem + 2vw, 3rem); }
.process.is-h .process-head .ph { display: inline-block; vertical-align: top; }
.process.is-h .process-head .sub { grid-column: 1; font-size: var(--t-small); max-width: 40rem; }
.process.is-h .process-count {
  display: block; grid-column: 2; grid-row: 1 / span 2; align-self: end;
  margin: 0; font-family: var(--f-display); font-weight: 200; font-size: 1.75rem; line-height: 1;
  color: var(--ink-2); font-variant-numeric: tabular-nums; white-space: nowrap;
}
.process-count b { font-weight: 200; color: var(--ink); }
.process.is-h .process-viewport { flex: 1; min-height: 0; display: flex; align-items: center; }
.process.is-h .process-track {
  display: flex; align-items: flex-start; gap: clamp(3rem, 6vw, 7rem);
  width: max-content;
  padding: 0 32vw 0 var(--wrap-left);
  will-change: transform;
}
.process.is-h .process-track::before, .process.is-h .process-track::after,
.process.is-h .step::before, .process.is-h .step::after { display: none; }
.process.is-h .step { width: clamp(18rem, 25vw, 25rem); flex: none; }
.process.is-h .step-num { font-size: min(12vw, 23vh); margin-bottom: 1.25rem; will-change: transform; }
.process.is-h .step-end-mark { width: min(9vw, 17vh); margin-bottom: 1.25rem; }
.process.is-h .step.has-media {
  width: clamp(34rem, 50vw, 50rem);
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-rows: auto 1fr;
  column-gap: clamp(2rem, 3vw, 3.5rem);
}
.process.is-h .has-media .step-fig { grid-column: 2; grid-row: 1 / span 2; margin: 0; max-width: none; }
.process.is-h .step-fig .media { --ar: auto; height: min(48vh, 34rem); }
.process.is-h .step-fig .media-inner { inset: 0 -7%; }
.process.is-h .process-rail { display: block; position: relative; height: 2.75rem; margin-top: clamp(1rem, 3vh, 2rem); }
.rail-line { position: absolute; left: 0; right: 0; top: .6rem; height: 1px; background: var(--line-2); }
.rail-fill { position: absolute; inset: 0; background: var(--clay-ink); transform: scaleX(0); transform-origin: left; }
.rail-tick {
  position: absolute; top: .6rem; left: 0;
  width: 0; height: 0;
}
.rail-tick::before {
  content: ""; position: absolute; left: -5px; top: -5px; width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--clay-ink); transition: background-color .5s var(--ease);
}
.rail-tick span {
  position: absolute; top: .65rem; left: 0; transform: translateX(-50%);
  font-size: .8125rem; font-weight: 500; color: var(--ink-2); font-variant-numeric: tabular-nums;
}
.rail-tick.on::before { background: var(--clay-ink); }

/* Detailed variant (OEM page) */
.process.is-detail.is-h .step { width: clamp(22rem, 32vw, 34rem); }
.process.is-detail.is-h .step.has-media { width: clamp(44rem, 62vw, 62rem); grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); }
.process.is-detail.is-h .step-num { font-size: min(8vw, 13vh); margin-bottom: .9rem; }
.process.is-detail.is-h .step-body > p { font-size: var(--t-small); line-height: 1.7; }
.process.is-detail.is-h .step-fig .media { height: min(50vh, 30rem); }
@media (max-height: 780px) {
  .process.is-detail.is-h .step-num { font-size: 11vh; }
  .process.is-detail.is-h .step-io { margin-top: .9rem; padding-top: .75rem; gap: .5rem; }
  .process.is-detail.is-h .step-io dd { font-size: .875rem; }
  .process.is-detail.is-h .process-head .sub { display: none; }
}

/* ---------- Category rows (home) ---------- */
.rows { list-style: none; border-top: 1px solid var(--line-2); }
.rows li { border-bottom: 1px solid var(--line-2); }
.rows a {
  position: relative;
  display: grid; grid-template-columns: 2.6rem minmax(0, 1fr); gap: .3rem 1rem;
  padding: 1.5rem 0; text-decoration: none;
}
.rows a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: var(--clay-ink); transform: scaleX(0); transform-origin: left;
  transition: transform 1s var(--ease);
}
.rows a:hover::after, .rows a:focus-visible::after { transform: scaleX(1); }
.row-code { grid-row: span 3; padding-top: .5rem; font-size: .9375rem; font-weight: 500; letter-spacing: .04em; color: var(--clay-ink); }
.row-name {
  font-family: var(--f-display); font-weight: 300;
  font-size: clamp(1.45rem, 1.05rem + 1.5vw, 2.4rem); line-height: 1.3;
  transition: transform .9s var(--ease);
}
.rows a:hover .row-name { transform: translate3d(.5rem, 0, 0); }
.row-desc { font-size: var(--t-small); color: var(--ink-2); }
.row-moq { font-size: var(--t-small); }
@media (min-width: 900px) {
  .rows a { grid-template-columns: 4rem minmax(0, 1.15fr) minmax(0, 1fr) 9.5rem; align-items: baseline; padding: 2rem 0; }
  .row-code { grid-row: auto; padding: 0; }
  .row-moq { text-align: right; }
}

/* ---------- Clients ---------- */
.clients { display: grid; border-top: 1px solid var(--line-2); }
.client { padding: 1.75rem 0; border-bottom: 1px solid var(--line); }
.client p { margin: .6rem 0 0; max-width: 30rem; color: var(--ink-2); }
.client .fit { color: var(--ink); font-size: var(--t-small); margin-top: 1rem; }
.fit b { font-family: var(--f-display); font-weight: 300; font-size: 1.35rem; color: var(--clay-ink); }
@media (min-width: 720px) {
  .clients { grid-template-columns: 1fr 1fr; column-gap: clamp(2rem, 5vw, 5rem); }
  .client { padding: 2.25rem 0; }
}

/* ---------- Plant ---------- */
.plant { display: grid; gap: clamp(2.5rem, 1.5rem + 4vw, 4.5rem); }
.plant-text p { color: var(--ink-2); max-width: 30rem; margin: 1.25rem 0 0; }
.plant-text .fig { margin-top: clamp(2.5rem, 4vw, 3.5rem); max-width: 24rem; }
@media (min-width: 900px) {
  .plant { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); align-items: start; }
  .plant-big { position: sticky; top: calc(var(--header-h) + 2rem); }
}

/* ---------- Reviews ---------- */
.reviews { display: grid; gap: clamp(2.5rem, 4vw, 3rem); }
@media (min-width: 900px) { .reviews { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(2rem, 3vw, 3.5rem); } }
.review {
  margin: 0; padding-top: 1.5rem; border-top: 1px solid var(--line-2);
  display: flex; flex-direction: column; justify-content: space-between; gap: 2rem;
}
.review p { margin: 0; font-size: var(--t-lead); line-height: 1.75; }
.review footer { font-size: var(--t-small); color: var(--ink-2); line-height: 1.6; }
.review footer b { display: block; color: var(--ink); }

/* ---------- FAQ ---------- */
.faq-wrap { display: grid; gap: clamp(2rem, 1rem + 4vw, 4rem); }
@media (min-width: 900px) { .faq-wrap { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } }
.faq-wrap .sub { color: var(--ink-2); max-width: 26rem; margin: 1.25rem 0 0; }
.faq { border-top: 1px solid var(--line-2); }
.faq details { border-bottom: 1px solid var(--line-2); }
.faq summary {
  position: relative; list-style: none; cursor: pointer;
  padding: 1.35rem 3rem 1.35rem 0;
  font-size: var(--t-lead); line-height: 1.55;
  transition: color .4s var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--clay-ink); }
.faq summary::before, .faq summary::after {
  content: ""; position: absolute; right: .5rem; top: 50%; width: 1rem; height: 1px; background: currentColor;
  transition: transform .6s var(--ease);
}
.faq summary::after { transform: rotate(90deg); }
.faq details[open] summary::after { transform: rotate(0); }
.ans { overflow: hidden; }
.ans p { margin: 0; padding-bottom: 1.5rem; max-width: 38rem; color: var(--ink-2); }

/* ---------- CTA band ---------- */
.cta {
  background: var(--night); color: var(--on-night);
  padding-block: clamp(5rem, 3rem + 8vw, 10rem);
  border-radius: clamp(1.25rem, 3vw, 2.5rem) clamp(1.25rem, 3vw, 2.5rem) 0 0;
}
.cta-grid { display: grid; gap: 2.5rem; }
.cta p { margin: 1.5rem 0 0; max-width: 34rem; color: var(--on-night-2); }
@media (min-width: 900px) { .cta-grid { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); align-items: end; } .cta .btn-row { justify-content: flex-end; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--night); color: var(--on-night-2); font-size: var(--t-small); padding-bottom: 2.5rem; }
.site-footer .wrap { border-top: 1px solid rgb(239 237 232 / .14); padding-top: clamp(3rem, 2rem + 3vw, 4.5rem); }
.foot-word {
  margin-bottom: clamp(2.5rem, 2rem + 3vw, 4rem);
  font-family: var(--f-display); font-weight: 300;
  font-size: clamp(1.9rem, .6rem + 6.6vw, 7.25rem); line-height: 1.05; letter-spacing: -.02em;
  color: var(--on-night);
}
.foot-grid { display: grid; gap: 2.25rem; }
@media (min-width: 720px) { .foot-grid { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 3rem; } }
.foot-grid h3 { margin-bottom: .75rem; font: 500 .9375rem/1.5 var(--f-body); color: var(--on-night); }
.foot-grid p, .foot-grid address { margin: 0 0 .9rem; max-width: 30rem; }
.foot-grid ul { list-style: none; }
.foot-grid ul a { display: inline-flex; align-items: center; min-height: 2.75rem; text-decoration: none; color: var(--on-night-2); transition: color .3s; }
.foot-grid ul a:hover { color: var(--on-night); text-decoration: underline; text-underline-offset: .3em; }
.foot-legal { margin: 3rem 0 0; max-width: 62rem; font-size: .875rem; line-height: 1.7; }

/* PV Dev strip */
.pvdev {
  background: var(--night-2); color: var(--on-night-2);
  padding: .95rem var(--gutter);
  font-size: .875rem; line-height: 1.65; text-align: center;
}
.pvdev a { color: var(--on-night); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .3em; }
.pvdev a:hover { color: var(--clay-night); }

/* Mobile sticky contact bar */
.mbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.55fr); gap: .5rem;
  padding: .55rem var(--gutter) calc(.55rem + env(safe-area-inset-bottom));
  background: rgb(239 237 232 / .9);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
}
.mbar a {
  display: flex; align-items: center; justify-content: center; gap: .45rem;
  min-height: 3rem; padding: .25rem .5rem; border: 1px solid var(--line-2); border-radius: 999px;
  font-size: .9375rem; font-weight: 500; line-height: 1.2; text-align: center; text-decoration: none; color: var(--ink);
}
.mbar svg { width: 1.1rem; height: 1.1rem; flex: none; }
.mbar .m-line svg { color: var(--euc-ink); }
.mbar .m-rfq { background: var(--ink); border-color: var(--ink); color: var(--bg); }
@media (min-width: 1024px) { .mbar { display: none; } }

/* ---------- Inner page hero ---------- */
.page-hero { padding-top: clamp(2.25rem, 1rem + 6vh, 6rem); padding-bottom: clamp(3.5rem, 2rem + 5vw, 7rem); }
.crumb { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: clamp(1.5rem, 1rem + 2vw, 2.75rem); font-size: .875rem; color: var(--ink-2); }
.crumb a { color: var(--ink-2); text-underline-offset: .3em; padding: .65rem 0; margin: -.65rem 0; }
.crumb a:hover { color: var(--ink); }
.page-hero .h1 { max-width: 16em; }
html[lang="en"] .page-hero .h1 { max-width: 15em; }
.page-hero .lead { margin: clamp(1.5rem, 1rem + 1.5vw, 2.25rem) 0 0; }
.page-hero.split .wrap { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 1024px) {
  .page-hero.split .wrap { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); align-items: end; }
}

/* Key figures row (OEM) */
.figures { display: grid; grid-template-columns: 1fr 1fr; margin: clamp(2.75rem, 2rem + 3vw, 4.5rem) 0 0; border-top: 1px solid var(--line-2); }
.figures > div { padding: 1.25rem 1rem 1.25rem 0; border-bottom: 1px solid var(--line); }
.figures dt { font-size: .875rem; color: var(--ink-2); }
.figures dd { margin: .35rem 0 0; font-family: var(--f-display); font-weight: 300; font-size: clamp(1.3rem, 1.1rem + .8vw, 1.9rem); line-height: 1.3; font-variant-numeric: tabular-nums; }
.figures dd small { display: block; margin-top: .3rem; font-family: var(--f-body); font-size: .875rem; color: var(--ink-2); line-height: 1.5; }
@media (min-width: 1024px) {
  .figures { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .figures > div { padding: 1.5rem 2rem 0 0; border-bottom: 0; }
}

/* Gantt */
.gantt-cap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 2rem; margin-bottom: 1.5rem; }
.gantt-cap h3 { font: 500 1.0625rem/1.5 var(--f-body); }
.gantt-cap p { margin: 0; font-size: var(--t-small); color: var(--ink-2); }
.g-list { list-style: none; }
.g-row { display: grid; gap: .55rem; padding: 1rem 0; border-top: 1px solid var(--line); }
.g-row:last-child { border-bottom: 1px solid var(--line); }
.g-label { display: flex; flex-wrap: wrap; align-items: baseline; gap: .1rem .75rem; }
.g-num { font-size: .9375rem; font-weight: 500; color: var(--clay-ink); font-variant-numeric: tabular-nums; }
.g-name { font-weight: 500; }
.g-dur { width: 100%; font-size: .875rem; color: var(--ink-2); }
.g-track {
  position: relative;
  display: grid; grid-template-columns: repeat(13, minmax(0, 1fr));
  align-items: center;
  height: .9rem;
  background: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px calc(100% / 13));
}
.g-bar {
  grid-column: var(--s) / span var(--n); grid-row: 1;
  height: .55rem; border-radius: 999px; background: var(--ink);
  transform-origin: left center;
  transition: transform 1.2s var(--ease);
  transition-delay: calc(var(--k, 0) * .08s + .2s);
}
.g-bar.fac { background: var(--euc-ink); }
.g-bar.you { background: transparent; border: 1.5px solid var(--clay-ink); }
.g-bar.ship, .legend .k-ship { background: repeating-linear-gradient(135deg, var(--ink) 0 2px, transparent 2px 5px); border: 1.5px solid var(--ink); }
.reveal-on .gantt:not(.is-in) .g-bar { transform: scaleX(0); }
.g-axis { padding-block: .4rem; border-top: 0; }
.g-axis .g-track { height: auto; background: none; font-size: .75rem; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.g-axis .g-track span { text-align: center; }
.g-axis .g-label { font-size: .875rem; color: var(--ink-2); }
@media (min-width: 720px) {
  .g-row { grid-template-columns: minmax(13rem, 19rem) minmax(0, 1fr); align-items: center; column-gap: 1.75rem; }
}
@media (max-width: 719.98px) { .g-axis .g-label { display: none; } }
.legend { display: flex; flex-wrap: wrap; gap: .5rem 1.75rem; margin: 1.25rem 0 0; font-size: .875rem; color: var(--ink-2); }
.legend span { display: inline-flex; align-items: center; gap: .55rem; }
.legend i { width: 1.6rem; height: .55rem; border-radius: 999px; background: var(--ink); }
.legend .k-fac { background: var(--euc-ink); }
.legend .k-you { background: transparent; border: 1.5px solid var(--clay-ink); }

/* Tables */
.table-wrap { overflow-x: auto; }
.tbl { width: 100%; border-collapse: collapse; font-size: var(--t-small); }
.tbl caption { caption-side: bottom; padding-top: 1rem; text-align: left; font-size: .875rem; color: var(--ink-2); }
.tbl th { padding: .85rem 1rem .85rem 0; border-bottom: 1px solid var(--line-2); text-align: left; font-weight: 500; color: var(--ink-2); }
.tbl td { padding: 1.05rem 1rem 1.05rem 0; border-bottom: 1px solid var(--line); }
.tbl .num { text-align: right; font-variant-numeric: tabular-nums; }
.tbl td.num { font-family: var(--f-display); font-weight: 300; font-size: 1.125rem; }
.tbl th:last-child, .tbl td:last-child { padding-right: 0; }
@media (max-width: 719.98px) {
  .tbl-stack, .tbl-stack tbody { display: block; }
  .tbl-stack thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .tbl-stack tr { display: block; padding: .9rem 0; border-bottom: 1px solid var(--line-2); }
  .tbl-stack td { display: flex; justify-content: space-between; gap: 1rem; padding: .25rem 0; border: 0; text-align: right; }
  .tbl-stack td::before { content: attr(data-th); font-family: var(--f-body); font-size: .875rem; font-weight: 400; color: var(--ink-2); text-align: left; }
  .tbl-stack td:first-child { font-family: var(--f-display); font-size: 1.25rem; font-weight: 300; }
  .tbl-stack td:first-child::before { display: none; }
}
.split-2 { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 900px) { .split-2 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } }

/* Products */
.cat-layout { display: grid; gap: 2.5rem; }
@media (min-width: 1024px) { .cat-layout { grid-template-columns: 15rem minmax(0, 1fr); gap: clamp(3rem, 6vw, 7rem); } }
.cat-index ol { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; }
.cat-index a {
  display: inline-flex; align-items: center; gap: .6rem;
  min-height: 2.75rem; padding: .3rem 1rem;
  border: 1px solid var(--line-2); border-radius: 999px;
  font-size: .9375rem; text-decoration: none; color: var(--ink-2);
  transition: color .4s var(--ease), border-color .4s var(--ease);
}
.cat-index a:hover, .cat-index a[aria-current="true"] { color: var(--ink); border-color: var(--ink); }
.code { font-size: .875rem; font-weight: 500; letter-spacing: .04em; color: var(--clay-ink); }
@media (min-width: 1024px) {
  .cat-index ol { position: sticky; top: calc(var(--header-h) + 2.5rem); display: grid; gap: 0; }
  .cat-index a { border: 0; border-radius: 0; padding: .35rem 0; position: relative; }
  .cat-index a::before { content: ""; width: 0; height: 1px; background: var(--ink); transition: width .6s var(--ease); }
  .cat-index a[aria-current="true"]::before { width: 1.25rem; }
}
.cat { padding-block: clamp(2.75rem, 2rem + 3vw, 4.5rem); border-top: 1px solid var(--line-2); scroll-margin-top: calc(var(--header-h) + 1.5rem); }
.cat:first-child { padding-top: 0; border-top: 0; }
.cat-head { display: flex; align-items: baseline; gap: 1rem; }
.cat-head .h2 { font-size: clamp(1.7rem, 1.2rem + 1.7vw, 2.75rem); }
.cat-intro { margin: 1.1rem 0 0; max-width: 36rem; font-size: var(--t-lead); }
.cat-body { display: grid; gap: 2rem; margin-top: 2rem; }
@media (min-width: 900px) { .cat-body { grid-template-columns: minmax(0, 1fr) minmax(0, 20rem); gap: 3.5rem; } }
.dash { list-style: none; display: grid; gap: .35rem; }
.dash li { position: relative; padding-left: 1.4rem; }
.dash li::before { content: ""; position: absolute; left: 0; top: .9em; width: .7rem; height: 1px; background: var(--clay-ink); }
.cat .pack { margin: 1.5rem 0 1.25rem; font-size: var(--t-small); color: var(--ink-2); }
.cat .ledger dd { font-size: clamp(1.3rem, 1.1rem + .8vw, 1.75rem); }
.factors { display: grid; gap: clamp(2.5rem, 5vw, 4rem); margin-top: clamp(3rem, 5vw, 4.5rem); }
@media (min-width: 900px) { .factors { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: end; } }
.factors h3 { font: 500 1.0625rem/1.5 var(--f-body); margin-bottom: 1rem; }

/* Quality */
.note-box {
  display: inline-block; margin: 1.75rem 0 0; padding: .8rem 1.15rem;
  border: 1px dashed var(--clay-ink); border-radius: .75rem;
  font-size: var(--t-small); max-width: 36rem;
}
.certs { list-style: none; border-top: 1px solid var(--line-2); }
.cert { display: grid; gap: .5rem 2.5rem; padding: 1.75rem 0; border-bottom: 1px solid var(--line); }
.cert p { margin: 0; color: var(--ink-2); max-width: 34rem; }
.cert .cert-no { font-size: .9375rem; font-weight: 500; color: var(--ink); font-variant-numeric: tabular-nums; }
.stamp {
  display: inline-block; margin-left: .6rem; padding: 0 .65rem;
  border: 1px solid currentColor; border-radius: 999px;
  font-family: var(--f-body); font-size: .8125rem; line-height: 1.7; color: var(--clay-ink); vertical-align: .35em;
}
@media (min-width: 900px) { .cert { grid-template-columns: minmax(0, 4fr) minmax(0, 5fr) minmax(0, 3fr); align-items: baseline; } .cert .cert-no { text-align: right; } }
.defs { list-style: none; border-top: 1px solid var(--line-2); }
.defs li { display: grid; gap: .2rem 2rem; padding: 1.2rem 0; border-bottom: 1px solid var(--line); }
.defs span { color: var(--ink-2); }
@media (min-width: 720px) { .defs li { grid-template-columns: minmax(0, 15rem) minmax(0, 1fr); } }
.pair { display: grid; gap: 1.75rem; margin-top: clamp(3rem, 5vw, 4.5rem); }
@media (min-width: 720px) { .pair { grid-template-columns: 1fr 1fr; } .pair .fig:last-child { margin-top: clamp(2rem, 8vw, 7rem); } }
.qc { display: grid; gap: 3rem; }
@media (min-width: 1024px) {
  .qc { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(3rem, 7vw, 7rem); }
  .qc-side { position: sticky; top: calc(var(--header-h) + 2rem); align-self: start; }
}
.qc-side .fig { margin-top: 2.5rem; max-width: 26rem; }
.qc-flow { --node: .9rem; }
.qc-n { display: block; margin-bottom: .6rem; font-family: var(--f-display); font-weight: 200; font-size: 2.6rem; line-height: .9; color: var(--clay-ink); }
.qc-flow p { margin: .5rem 0 0; max-width: 32rem; color: var(--ink-2); }
.qc-flow .checks { color: var(--ink); font-size: var(--t-small); }

/* Contact */
.contact-grid { display: grid; gap: clamp(3.5rem, 6vw, 5rem); }
@media (min-width: 1024px) { .contact-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); } }
.form-title { margin-bottom: .5rem; }
.form-grid { display: grid; gap: 1.35rem 1.5rem; margin-top: 2rem; }
@media (min-width: 720px) { .form-grid { grid-template-columns: 1fr 1fr; } .field.full { grid-column: 1 / -1; } }
.field label, .field legend { display: block; margin-bottom: .45rem; font-size: .9375rem; font-weight: 500; line-height: 1.5; }
.hint { display: block; font-size: .875rem; font-weight: 400; color: var(--ink-2); }
.req { color: var(--clay-ink); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 3.25rem; padding: .8rem 1rem;
  font: 400 1rem/1.5 var(--f-body); color: var(--ink);
  background: var(--paper); border: 1px solid var(--field); border-radius: .75rem;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.field select {
  appearance: none; -webkit-appearance: none; padding-right: 2.75rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%233B3631' stroke-width='1.3'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 1.1rem center;
}
.field textarea { min-height: 8.5rem; resize: vertical; }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible {
  outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgb(131 100 73 / .35);
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-2); opacity: 1; }
fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
.choice { display: flex; flex-wrap: wrap; gap: .5rem; }
.choice label {
  display: inline-flex; align-items: center; gap: .55rem;
  min-height: 2.75rem; margin: 0; padding: .35rem 1.05rem .35rem .85rem;
  border: 1px solid var(--field); border-radius: 999px; font-weight: 400; cursor: pointer;
}
.choice input { width: 1.05rem; height: 1.05rem; min-height: 0; margin: 0; padding: 0; accent-color: var(--ink); }
.choice label:has(input:checked) { border-color: var(--ink); background: var(--paper); }
.choice label:has(input:focus-visible) { outline: 2px solid var(--clay-ink); outline-offset: 2px; }
.form-foot { display: grid; justify-items: start; gap: 1rem; margin-top: 2rem; }
.form-foot p { margin: 0; max-width: 34rem; font-size: .875rem; color: var(--ink-2); }
.thanks { padding: clamp(2rem, 4vw, 3rem); border: 1px solid var(--line-2); border-radius: var(--radius); background: var(--paper); }
.thanks h2 { margin-bottom: 1rem; }
.thanks h2:focus { outline: none; }
.thanks .ledger { margin-top: 1.5rem; }
.thanks .ledger dd { font-size: 1.25rem; }
.info { display: grid; gap: 2.75rem; align-content: start; }
.info-block h2 { margin-bottom: .9rem; font-family: var(--f-display); font-weight: 300; font-size: 1.5rem; line-height: 1.4; }
.info-block address { margin-bottom: .9rem; }
.info-block .small { color: var(--ink-2); }
.contact-lines { list-style: none; display: grid; gap: .1rem; margin-bottom: .75rem; }
.contact-lines a { display: inline-flex; align-items: center; min-height: 2.75rem; font-size: 1.125rem; font-weight: 500; }
.hours { margin: 0; border-top: 1px solid var(--line-2); }
.hours div { display: flex; justify-content: space-between; gap: 1rem; padding: .7rem 0; border-bottom: 1px solid var(--line); }
.hours dd { margin: 0; text-align: right; font-weight: 500; font-variant-numeric: tabular-nums; }

/* ---------- Cursor (desktop, fine pointer only) ---------- */
.cursor {
  position: fixed; left: 0; top: 0; z-index: 90;
  width: 0; height: 0; pointer-events: none;
  opacity: 0; transition: opacity .4s var(--ease);
}
.cursor.is-on { opacity: 1; }
.cursor i {
  position: absolute; left: -1.1rem; top: -1.1rem;
  width: 2.2rem; height: 2.2rem; border-radius: 50%;
  border: 1px solid rgb(59 54 49 / .5);
  transition: transform .6s var(--ease), background-color .5s var(--ease), border-color .5s var(--ease);
}
.cursor.is-link i { transform: scale(1.75); background: rgb(176 141 110 / .14); border-color: rgb(131 100 73 / .5); }
.cursor.is-dark i { border-color: rgb(239 237 232 / .55); }
.cursor.is-dark.is-link i { background: rgb(239 237 232 / .1); }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    transition-delay: 0s !important;
  }
  .intro { display: none !important; }
}