/* ==========================================================================
   Hill Tech Labs: site styles
   A lab notebook laid over a blueprint grid. Numbered experiments, margin
   annotations, measurement ticks, specimen labels. Graphite on lab paper,
   one cobalt accent, label yellow for highlights only.
   ========================================================================== */

html { background: var(--paper); color: var(--ink); }
body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  color: var(--ink);
  background-color: var(--paper);
  font-feature-settings: "kern", "liga";
}
/* static blueprint grid (replaced by the live canvas grid when it runs) */
html:not(.grid-live) body {
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px),
    linear-gradient(to right, rgba(220, 218, 210, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(220, 218, 210, .5) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
}
.gridfx { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
main, .foot { position: relative; z-index: 1; }
.ico { width: 24px; height: 24px; flex: none; }
img { background: var(--paper-2); }
.dark img { background: var(--dark-2); }
a { text-decoration-thickness: 1px; text-underline-offset: .2em; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.dark :focus-visible, .foot :focus-visible, .menu :focus-visible { outline-color: var(--cobalt-light); }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- type ---------- */
.mono, .kicker { font-family: var(--font-mono); font-size: 12px; line-height: 1.4; letter-spacing: .04em; text-transform: uppercase; }
.kicker { color: var(--muted); display: inline-flex; align-items: center; gap: 10px; }
.kicker::before { content: ""; width: 18px; height: 1px; background: currentColor; }
.dark .kicker { color: var(--dark-muted); }
.display, .h1, .h2, .h3 { font-family: var(--font-sans); color: inherit; text-wrap: balance; }
.display { font-size: clamp(46px, 8.4vw, 138px); line-height: .9; font-weight: 700; letter-spacing: -.048em; }
.h1 { font-size: clamp(40px, 6.2vw, 100px); line-height: .96; font-weight: 680; letter-spacing: -.042em; }
.h2 { font-size: clamp(31px, 4.1vw, 64px); line-height: 1.02; font-weight: 650; letter-spacing: -.035em; }
.h3 { font-size: clamp(20px, 1.55vw, 24px); line-height: 1.22; font-weight: 620; letter-spacing: -.016em; }
.h4 { font: 600 17px/1.3 var(--font-sans); letter-spacing: -.01em; }
.lead { font-size: clamp(18px, 1.38vw, 21px); line-height: 1.52; color: var(--ink-2); max-width: 44ch; text-wrap: pretty; }
.dark .lead { color: rgba(243, 242, 238, .86); }
.muted { color: var(--muted); }
.dark .muted { color: var(--dark-muted); }
.small { font-size: 15px; line-height: 1.55; }
.note { font-family: var(--font-mono); font-size: 12px; line-height: 1.55; color: var(--muted); }
.dark .note { color: var(--dark-muted); }
p { text-wrap: pretty; }
.prose { max-width: 66ch; }
.prose > * + * { margin-top: 1em; }
.prose h2 { font: 650 clamp(24px, 2.2vw, 32px)/1.15 var(--font-sans); letter-spacing: -.025em; margin-top: 2.1em; }
.prose h3 { font: 620 20px/1.3 var(--font-sans); letter-spacing: -.012em; margin-top: 1.8em; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li + li { margin-top: .45em; }
.prose a, .link { color: inherit; text-decoration: underline; text-decoration-color: var(--cobalt); text-underline-offset: .22em; transition: color .3s, text-decoration-color .3s; }
.prose a:hover, .link:hover { color: var(--cobalt); }
.dark .link { text-decoration-color: var(--cobalt-light); }
.dark .link:hover { color: var(--cobalt-light); }
strong { font-weight: 640; }
.hl { background: linear-gradient(var(--label), var(--label)) 0 88% / 0% 42% no-repeat; transition: background-size 1.1s var(--ease); padding-inline: .06em; }
.hl.is-in, html.reduced-motion .hl, html:not(.js) .hl { background-size: 100% 42%; }
code, .code { font-family: var(--font-mono); font-size: .88em; background: var(--paper-2); padding: .1em .35em; border: 1px solid var(--line); }
.dark code { background: var(--dark-3); border-color: var(--dark-line); }

/* ---------- sections and the notebook layout ---------- */
.sec { position: relative; padding-block: clamp(84px, 10vw, 156px); }
.sec--tight { padding-block: clamp(60px, 7vw, 104px); }
.sec--flush-top { padding-top: 0; }
.dark {
  background-color: var(--dark);
  color: var(--paper);
  background-image:
    linear-gradient(to right, rgba(243, 242, 238, .045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(243, 242, 238, .045) 1px, transparent 1px);
  background-size: 24px 24px;
}
.dark + .dark, .dark + .foot { box-shadow: 0 -2px 0 var(--dark); }
.panel { background: var(--paper); }

.nb { display: grid; grid-template-columns: var(--margin-col) minmax(0, 1fr); column-gap: clamp(24px, 3.2vw, 56px); position: relative; }
.nb::before { /* the notebook margin rule */
  content: ""; position: absolute; top: 0; bottom: 0;
  left: calc(var(--gutter) + var(--margin-col) + clamp(24px, 3.2vw, 56px) / 2);
  width: 1px; background: rgba(36, 67, 255, .32);
}
.dark .nb::before { background: rgba(132, 148, 255, .3); }
.nb--norule::before { display: none; }
.nb__margin { position: relative; }
.nb__margin-in { position: sticky; top: calc(var(--bar-h) + 28px); display: grid; gap: 18px; align-content: start; }
.nb__main { min-width: 0; }
.nb__main > .h2 + .lead, .nb__main > .h2 + p, .nb__main .h2 + .lead { margin-top: 26px; }
@media (max-width: 900px) {
  .nb { grid-template-columns: minmax(0, 1fr); }
  .nb::before { display: none; }
  .nb__margin { margin-bottom: 28px; }
  .nb__margin-in { position: static; display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: center; }
}

/* experiment tag: EXP-03 | Build sequence */
.exp { display: inline-flex; align-items: stretch; width: max-content; max-width: 100%; border: 1px solid var(--ink); font-family: var(--font-mono); font-size: 11.5px; line-height: 1; letter-spacing: .05em; text-transform: uppercase; background: var(--paper); }
.exp__no { background: var(--label); color: var(--ink); padding: 7px 8px 6px; border-right: 1px solid var(--ink); white-space: nowrap; }
.exp__name { padding: 7px 9px 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dark .exp { border-color: var(--dark-line-strong); background: var(--dark); }
.dark .exp__no { border-color: var(--dark-line-strong); }

/* margin notes */
.mnote { position: relative; font-family: var(--font-mono); font-size: 12px; line-height: 1.6; color: var(--muted); padding-left: 16px; max-width: 30ch; }
.mnote::before { content: ""; position: absolute; left: 0; top: .78em; width: 9px; height: 1px; background: var(--cobalt); }
.mnote b { font-weight: 400; color: var(--ink); }
.dark .mnote { color: var(--dark-muted); }
.dark .mnote b { color: var(--paper); }
.dark .mnote::before { background: var(--cobalt-light); }
.mnote--icon { padding-left: 0; }
.mnote--icon::before { display: none; }
.margin-ico { width: 36px; height: 36px; color: var(--cobalt); }
.dark .margin-ico { color: var(--cobalt-light); }

/* measurement ruler that reads its own width */
.ruler { position: relative; height: 22px; margin-block: 0; transform-origin: left center; }
.ruler::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 12px;
  background:
    linear-gradient(to right, var(--ink) 1px, transparent 1px) 0 0 / 120px 12px repeat-x,
    linear-gradient(to right, var(--grid-strong) 1px, transparent 1px) 0 0 / 24px 7px repeat-x,
    linear-gradient(to right, var(--grid-strong) 1px, transparent 1px) 0 0 / 6px 4px repeat-x;
  border-top: 1px solid var(--ink); }
.ruler__lab { position: absolute; top: 12px; font-family: var(--font-mono); font-size: 10px; line-height: 1; letter-spacing: .04em; color: var(--muted); padding-top: 2px; }
.ruler__lab--end { right: 0; }
.dark .ruler::before {
  background:
    linear-gradient(to right, var(--dark-line-strong) 1px, transparent 1px) 0 0 / 120px 12px repeat-x,
    linear-gradient(to right, var(--dark-line) 1px, transparent 1px) 0 0 / 24px 7px repeat-x;
  border-top-color: var(--dark-line-strong); }
.dark .ruler__lab { color: var(--dark-muted); }

/* specimen label (small yellow tag) */
.slabel { display: inline-flex; gap: 8px; align-items: center; font-family: var(--font-mono); font-size: 11px; line-height: 1; letter-spacing: .05em; text-transform: uppercase; background: var(--label); color: var(--ink); padding: 5px 7px 4px; }

/* ---------- figures: crop marks, scan reveal, live size ---------- */
.fig { position: relative; }
.fig__box { position: relative; }
.fig__box::before { /* registration marks just outside the four corners */
  content: ""; position: absolute; inset: -9px; pointer-events: none; z-index: 2;
  --m: var(--ink);
  background:
    linear-gradient(var(--m), var(--m)) top left / 14px 1px no-repeat,
    linear-gradient(var(--m), var(--m)) top left / 1px 14px no-repeat,
    linear-gradient(var(--m), var(--m)) top right / 14px 1px no-repeat,
    linear-gradient(var(--m), var(--m)) top right / 1px 14px no-repeat,
    linear-gradient(var(--m), var(--m)) bottom left / 14px 1px no-repeat,
    linear-gradient(var(--m), var(--m)) bottom left / 1px 14px no-repeat,
    linear-gradient(var(--m), var(--m)) bottom right / 14px 1px no-repeat,
    linear-gradient(var(--m), var(--m)) bottom right / 1px 14px no-repeat;
}
.dark .fig__box::before { --m: var(--dark-line-strong); }
.fig__frame { position: relative; overflow: hidden; }
.fig__frame > img { width: 100%; height: 100%; object-fit: cover; }
.fig__scan { position: absolute; left: -2px; right: -2px; top: 0; height: 2px; background: var(--cobalt); box-shadow: 0 0 0 1px rgba(36, 67, 255, .18); opacity: 0; z-index: 3; pointer-events: none; }
.fig__cap { display: flex; gap: 14px; align-items: baseline; margin-top: 16px; font-family: var(--font-mono); font-size: 11.5px; line-height: 1.45; letter-spacing: .02em; color: var(--muted); }
.fig__no { color: var(--ink); white-space: nowrap; text-transform: uppercase; }
.fig__txt { flex: 1; }
.fig__size { white-space: nowrap; color: var(--cobalt); }
.dark .fig__cap { color: var(--dark-muted); }
.dark .fig__no { color: var(--paper); }
.dark .fig__size { color: var(--cobalt-light); }
.r-45 { aspect-ratio: 4 / 5; }
.r-32 { aspect-ratio: 3 / 2; }
.r-11 { aspect-ratio: 1 / 1; }
.r-21 { aspect-ratio: 2 / 1; }
.r-169 { aspect-ratio: 16 / 9; }
.band { margin-top: clamp(48px, 6vw, 88px); }
.band .fig__frame { height: clamp(300px, 46vw, 640px); }
.band .fig__frame > img { height: 100%; }

/* ---------- buttons and links ---------- */
.btn {
  --bg: var(--cobalt); --fg: var(--paper); --bd: var(--cobalt);
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 52px; padding: 0 22px;
  font: 600 15.5px/1 var(--font-sans); letter-spacing: -.005em;
  color: var(--fg); background: var(--bg); border: 1px solid var(--bd);
  text-decoration: none; cursor: pointer;
  transition: background-color .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease);
}
.btn::before { /* selection handles, like a selected layer in a design tool */
  content: ""; position: absolute; inset: -5px; pointer-events: none; opacity: 0; transform: scale(.96);
  --h: var(--cobalt);
  background:
    linear-gradient(var(--h), var(--h)) top left / 6px 6px no-repeat,
    linear-gradient(var(--h), var(--h)) top right / 6px 6px no-repeat,
    linear-gradient(var(--h), var(--h)) bottom left / 6px 6px no-repeat,
    linear-gradient(var(--h), var(--h)) bottom right / 6px 6px no-repeat;
  outline: 1px solid var(--h); outline-offset: -3px;
  transition: opacity .3s var(--ease), transform .45s var(--ease);
}
.btn:hover::before, .btn:focus-visible::before { opacity: 1; transform: none; }
.btn:hover { --bg: var(--cobalt-deep); --bd: var(--cobalt-deep); }
.btn .ico { width: 18px; height: 18px; flex: none; transition: transform .45s var(--ease); }
.btn:hover .ico { transform: translateX(3px); }
.btn--ghost { --bg: transparent; --fg: var(--ink); --bd: var(--ink); }
.btn--ghost:hover { --bg: var(--ink); --fg: var(--paper); --bd: var(--ink); }
.btn--small { min-height: 42px; padding: 0 16px; font-size: 14px; }
.dark .btn--ghost { --fg: var(--paper); --bd: var(--dark-line-strong); }
.dark .btn--ghost:hover { --bg: var(--paper); --fg: var(--ink); --bd: var(--paper); }
.dark .btn::before { --h: var(--cobalt-light); }
.btn:focus-visible { outline-offset: 6px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.alink { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; text-decoration: none; padding-block: 4px; background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat; transition: background-size .5s var(--ease), color .3s; }
.alink:hover { background-size: 100% 1px; color: var(--cobalt); }
.dark .alink:hover { color: var(--cobalt-light); }
.alink .ico { width: 18px; height: 18px; transition: transform .45s var(--ease); }
.alink:hover .ico { transform: translateX(4px); }

/* ---------- toolbar (header) ---------- */
.bar { position: fixed; inset: 0 0 auto 0; z-index: 800; height: var(--bar-h); color: var(--ink); background: var(--paper); border-bottom: 1px solid var(--line); transition: background-color .4s, color .4s, border-color .4s; }
.bar.on-dark { background: var(--dark); color: var(--paper); border-color: var(--dark-line); }
.bar__inner { height: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); display: flex; align-items: center; gap: clamp(14px, 1.8vw, 28px); }
.bar__brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex: none; }
.mark { width: 30px; height: 30px; color: currentColor; flex: none; }
.mark__dot { fill: var(--cobalt); transition: fill .4s; }
.on-dark .mark__dot, .dark .mark__dot, .foot .mark__dot, .menu .mark__dot { fill: var(--label); }
.bar__name { font: 680 16px/1 var(--font-sans); letter-spacing: -.02em; white-space: nowrap; }
.bar__loc { display: flex; gap: 8px; align-items: center; margin-right: auto; font: 11px/1 var(--font-mono); letter-spacing: .04em; color: var(--muted); white-space: nowrap; min-width: 0; overflow: hidden; }
.bar__loc-path::before { content: ""; display: inline-block; width: 1px; height: 14px; background: var(--line-strong); margin-right: 12px; vertical-align: -3px; }
.bar__loc-exp { color: var(--cobalt); text-transform: uppercase; }
.bar.on-dark .bar__loc { color: var(--dark-muted); }
.bar.on-dark .bar__loc-exp { color: var(--cobalt-light); }
.bar.on-dark .bar__loc-path::before { background: var(--dark-line-strong); }
.bar__nav ul { display: flex; gap: clamp(14px, 1.5vw, 26px); }
.bar__nav a { position: relative; display: inline-flex; align-items: baseline; gap: 5px; font-size: 14.5px; font-weight: 520; text-decoration: none; padding: 8px 0; white-space: nowrap; }
.bar__no { font: 10px/1 var(--font-mono); color: var(--muted); letter-spacing: .02em; transition: color .3s; }
.bar.on-dark .bar__no { color: var(--dark-muted); }
.bar__nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 3px; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .5s var(--ease); }
.bar__nav a:hover::after, .bar__nav a[aria-current="page"]::after, .page-article .bar__nav a[data-nav="notes"]::after { transform: scaleX(1); transform-origin: left; }
.bar__nav a:hover .bar__no, .bar__nav a[aria-current="page"] .bar__no { color: var(--cobalt); }
.bar.on-dark .bar__nav a:hover .bar__no, .bar.on-dark .bar__nav a[aria-current="page"] .bar__no { color: var(--cobalt-light); }

/* Inspect switch */
.inspect { display: inline-flex; align-items: center; gap: 9px; min-height: 36px; padding: 0 2px 0 10px; background: transparent; border: 1px solid var(--line-strong); color: inherit; font: 11.5px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; flex: none; transition: border-color .3s, background-color .3s; }
.inspect:hover { border-color: currentColor; }
.inspect__track { position: relative; width: 34px; height: 20px; margin-right: 6px; border: 1px solid currentColor; background: transparent; transition: background-color .35s var(--ease), border-color .35s; }
.inspect__thumb { position: absolute; left: 2px; top: 2px; width: 14px; height: 14px; background: currentColor; transition: transform .45s var(--ease), background-color .35s; }
.inspect[aria-checked="true"] { border-color: var(--cobalt); }
.inspect[aria-checked="true"] .inspect__track { background: var(--cobalt); border-color: var(--cobalt); }
.inspect[aria-checked="true"] .inspect__thumb { transform: translateX(14px); background: var(--label); }
.bar.on-dark .inspect { border-color: var(--dark-line-strong); }
.bar.on-dark .inspect[aria-checked="true"] { border-color: var(--cobalt-light); }

.bar__cta { display: inline-flex; align-items: center; min-height: 36px; padding: 0 14px; background: var(--cobalt); color: var(--paper); text-decoration: none; font: 11.5px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; flex: none; transition: background-color .3s; }
.bar__cta:hover { background: var(--cobalt-deep); }
.bar.on-dark .bar__cta { background: var(--paper); color: var(--ink); }
.bar.on-dark .bar__cta:hover { background: var(--label); }
.bar__menu { display: none; position: relative; width: 44px; height: 40px; background: transparent; border: 1px solid var(--line-strong); color: inherit; flex: none; }
.bar__menu-lines i { position: absolute; left: 11px; right: 11px; height: 1.5px; background: currentColor; transition: transform .5s var(--ease), top .5s var(--ease); }
.bar__menu-lines i:first-child { top: 15px; }
.bar__menu-lines i:last-child { top: 23px; }
.menu-open .bar__menu-lines i:first-child { top: 19px; transform: rotate(45deg); }
.menu-open .bar__menu-lines i:last-child { top: 19px; transform: rotate(-45deg); }
.bar__ruler { position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; }
.bar__progress { position: absolute; left: 0; top: 0; width: 100%; height: 2px; background: var(--cobalt); transform-origin: left; transform: scaleX(0); }
.bar.on-dark .bar__progress { background: var(--cobalt-light); }
@media (max-width: 1260px) { .bar__loc { display: none; } .bar__nav { margin-left: auto; } }
@media (max-width: 1080px) {
  .bar__nav, .bar__cta { display: none; }
  .bar__menu { display: block; }
  .inspect { margin-left: auto; }
}
@media (max-width: 420px) { .inspect { padding-left: 8px; gap: 7px; } .bar__name { font-size: 15px; } }
.menu-open .bar { background: var(--dark); color: var(--paper); border-color: var(--dark-line); }

/* mobile menu: the notebook index */
.menu { position: fixed; inset: 0; z-index: 790; background: var(--dark); color: var(--paper); visibility: hidden; clip-path: inset(0 0 100% 0); transition: clip-path .75s var(--ease-in-out), visibility 0s linear .75s; overflow-y: auto; }
.menu-open .menu { visibility: visible; clip-path: inset(0 0 0 0); transition: clip-path .75s var(--ease-in-out), visibility 0s; }
.menu__inner { min-height: 100%; padding: calc(var(--bar-h) + 28px) var(--gutter) 40px; display: flex; flex-direction: column; gap: 28px;
  background-image: linear-gradient(to right, rgba(243, 242, 238, .05) 1px, transparent 1px), linear-gradient(to bottom, rgba(243, 242, 238, .05) 1px, transparent 1px); background-size: 24px 24px; }
.menu__kicker { font: 11px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--dark-muted); }
.menu__list { border-top: 1px solid var(--dark-line); }
.menu__list a { display: flex; align-items: baseline; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--dark-line); text-decoration: none; font: 620 clamp(28px, 7.4vw, 44px)/1.05 var(--font-sans); letter-spacing: -.03em; opacity: 0; transform: translateX(-14px); transition: opacity .5s, transform .7s var(--ease), color .3s; }
.menu__list a:hover { color: var(--label); }
.menu__no { font: 11px/1 var(--font-mono); color: var(--cobalt-light); letter-spacing: .04em; min-width: 22px; }
.menu-open .menu__list a { opacity: 1; transform: none; }
.menu-open .menu__list li:nth-child(1) a { transition-delay: .15s; } .menu-open .menu__list li:nth-child(2) a { transition-delay: .19s; }
.menu-open .menu__list li:nth-child(3) a { transition-delay: .23s; } .menu-open .menu__list li:nth-child(4) a { transition-delay: .27s; }
.menu-open .menu__list li:nth-child(5) a { transition-delay: .31s; } .menu-open .menu__list li:nth-child(6) a { transition-delay: .35s; }
.menu-open .menu__list li:nth-child(7) a { transition-delay: .39s; } .menu-open .menu__list li:nth-child(8) a { transition-delay: .43s; }
.menu__mail { font: 14px/1.5 var(--font-mono); color: var(--dark-muted); overflow-wrap: anywhere; margin-top: auto; }
.menu__mail a { color: var(--label); text-decoration: none; }

/* ---------- footer: notebook index + terminal ---------- */
.foot { background: var(--dark); color: var(--paper); padding-top: clamp(72px, 9vw, 128px); box-shadow: 0 -2px 0 var(--dark);
  background-image: linear-gradient(to right, rgba(243, 242, 238, .045) 1px, transparent 1px), linear-gradient(to bottom, rgba(243, 242, 238, .045) 1px, transparent 1px); background-size: 24px 24px; }
.foot__head { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 24px 48px; align-items: end; padding-bottom: clamp(40px, 5vw, 64px); }
.foot__kicker { font: 11.5px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--dark-muted); }
.foot__line { margin-top: 18px; font: 650 clamp(32px, 4.4vw, 68px)/1 var(--font-sans); letter-spacing: -.04em; }
.foot__note { color: var(--dark-muted); max-width: 42ch; justify-self: end; }
@media (max-width: 860px) { .foot__head { grid-template-columns: 1fr; } .foot__note { justify-self: start; } }

.idx { display: grid; grid-template-columns: 34px repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--dark-line-strong); border-left: 1px solid var(--dark-line); --row: 76px; --head: 40px; }
.idx__rows { display: grid; grid-template-rows: var(--head) repeat(4, var(--row)); }
.idx__rows span { display: flex; align-items: center; justify-content: center; font: 10.5px/1 var(--font-mono); color: var(--dark-muted); border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); }
.idx__col { display: grid; grid-template-rows: var(--head) auto; min-width: 0; }
.idx__title { display: flex; align-items: center; gap: 12px; height: var(--head); padding: 0 14px; font: 11px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--dark-muted); border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); }
.idx__letter { color: var(--paper); }
.idx__cells { display: grid; grid-template-rows: repeat(4, var(--row)); }
.idx__cells li { border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); min-width: 0; }
.idx__cells li a { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 4px 12px; align-items: baseline; height: 100%; padding: 16px 14px; text-decoration: none; transition: background-color .3s, color .3s; }
.idx__cells li a:hover { background: var(--dark-3); color: var(--label); }
.idx__xy { font: 10.5px/1 var(--font-mono); color: var(--cobalt-light); letter-spacing: .03em; }
.idx__name { font-size: 15px; line-height: 1.3; font-weight: 520; }
.idx__pg { font: 10.5px/1 var(--font-mono); color: var(--dark-muted); }
.idx__cells li.is-empty { padding: 16px 14px; background-image: repeating-linear-gradient(135deg, transparent 0 7px, rgba(243, 242, 238, .045) 7px 8px); }
.idx__cells li.is-empty .idx__xy { color: rgba(243, 242, 238, .3); }
@media (max-width: 1100px) { .idx__pg { display: none; } .idx__cells li a { grid-template-columns: auto minmax(0, 1fr); } }
@media (max-width: 860px) {
  .idx { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .idx__rows { display: none; }
  .idx__col { grid-template-rows: auto auto; }
  .idx__cells { grid-template-rows: none; align-content: start; }
  .idx__cells li { min-height: 0; }
  .idx__cells li.is-empty { display: none; }
  .idx__cells li a { padding: 13px 12px; }
}

.term { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 24px; margin-top: clamp(40px, 5vw, 64px); padding: 18px 20px; border: 1px solid var(--dark-line-strong); background: #09090B; font: 15px/1.5 var(--font-mono); }
.term__line { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; min-width: 0; }
.term__path { color: var(--cobalt-light); }
.term__sigil { color: var(--dark-muted); }
.term__cmd { color: var(--label); }
.term__mail { color: var(--paper); text-decoration: underline; text-decoration-color: rgba(243, 242, 238, .35); overflow-wrap: anywhere; }
.term__mail:hover { text-decoration-color: var(--label); }
.term__caret { display: inline-block; width: 9px; height: 18px; background: var(--paper); margin-left: -4px; animation: caret 1.1s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }
.term__copy { background: transparent; border: 1px solid var(--dark-line-strong); color: var(--dark-muted); font: 11px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; min-height: 34px; padding: 0 12px; transition: color .3s, border-color .3s; }
.term__copy:hover, .term__copy.is-copied { color: var(--label); border-color: var(--label); }
.foot__legal { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 28px; padding: 26px 0 34px; margin-top: clamp(40px, 5vw, 56px); border-top: 1px solid var(--dark-line); font-size: 13.5px; color: var(--dark-muted); }
.foot__colophon { font: 11px/1.4 var(--font-mono); letter-spacing: .02em; margin-right: auto; }
.foot__legal ul { display: flex; gap: 22px; }
.foot__legal a { text-decoration: none; }
.foot__legal a:hover { color: var(--paper); text-decoration: underline; }

/* ---------- page transition: grid-cell dissolve ---------- */
.pt { position: fixed; inset: 0; z-index: 9000; pointer-events: none; visibility: hidden; }
.pt__fill { position: absolute; inset: 0; background: var(--dark); }
.pt__cells { position: absolute; inset: 0; display: grid; perspective: 900px; }
.pt__cell { background: var(--dark); backface-visibility: hidden; transform-origin: 50% 50%; margin: 0 -1px -1px 0; box-shadow: inset 0 0 0 .5px rgba(243, 242, 238, .06); }
.pt__status { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: flex; gap: 10px; align-items: center; font: 12px/1 var(--font-mono); letter-spacing: .05em; color: var(--paper); opacity: 0; white-space: nowrap; }
.pt__verb { color: var(--label); }
.pt__caret { width: 7px; height: 13px; background: var(--label); animation: caret 1s steps(1) infinite; }
html.pt-enter .pt__status { opacity: 1; }

/* ---------- crosshair cursor ---------- */
html.has-xh, html.has-xh * { cursor: none !important; }
html.has-xh input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]), html.has-xh textarea, html.has-xh select { cursor: text !important; }
html.has-xh select { cursor: default !important; }
.xh { position: fixed; inset: 0; z-index: 9400; pointer-events: none; opacity: 0; transition: opacity .25s; --xc: var(--cobalt); --xg: rgba(36, 67, 255, .1); }
.xh.is-on { opacity: 1; }
.xh.is-dark { --xc: var(--cobalt-light); --xg: rgba(132, 148, 255, .14); }
.xh.is-text { opacity: 0; }
.xh__v, .xh__h { position: absolute; left: 0; top: 0; background: var(--xg); will-change: transform; }
.xh__v { width: 1px; height: 100%; }
.xh__h { height: 1px; width: 100%; }
.xh__mark { position: absolute; left: 0; top: 0; width: 0; height: 0; will-change: transform; }
.xh__mark i { position: absolute; background: var(--xc); transition: transform .35s var(--ease), opacity .25s; }
.xh__mark i:nth-child(1) { left: -.5px; top: -12px; width: 1px; height: 8px; }
.xh__mark i:nth-child(2) { left: -.5px; top: 4px; width: 1px; height: 8px; }
.xh__mark i:nth-child(3) { top: -.5px; left: -12px; height: 1px; width: 8px; }
.xh__mark i:nth-child(4) { top: -.5px; left: 4px; height: 1px; width: 8px; }
.xh__box { position: absolute; left: -15px; top: -15px; width: 30px; height: 30px; opacity: 0; transform: scale(.6); transition: transform .4s var(--ease), opacity .25s;
  --c: var(--xc);
  background:
    linear-gradient(var(--c), var(--c)) top left / 8px 1px no-repeat, linear-gradient(var(--c), var(--c)) top left / 1px 8px no-repeat,
    linear-gradient(var(--c), var(--c)) top right / 8px 1px no-repeat, linear-gradient(var(--c), var(--c)) top right / 1px 8px no-repeat,
    linear-gradient(var(--c), var(--c)) bottom left / 8px 1px no-repeat, linear-gradient(var(--c), var(--c)) bottom left / 1px 8px no-repeat,
    linear-gradient(var(--c), var(--c)) bottom right / 8px 1px no-repeat, linear-gradient(var(--c), var(--c)) bottom right / 1px 8px no-repeat; }
.xh.is-link .xh__box { opacity: 1; transform: none; }
.xh.is-link .xh__mark i:nth-child(1) { transform: translateY(-3px); opacity: .0; }
.xh.is-link .xh__mark i:nth-child(2) { transform: translateY(3px); opacity: .0; }
.xh.is-link .xh__mark i:nth-child(3) { transform: translateX(-3px); opacity: .0; }
.xh.is-link .xh__mark i:nth-child(4) { transform: translateX(3px); opacity: .0; }
.xh.is-down .xh__box { transform: scale(.8); }
.xh__read { position: absolute; left: 0; top: 0; padding: 4px 6px 3px; font: 10px/1 var(--font-mono); letter-spacing: .04em; color: var(--xc); background: rgba(243, 242, 238, .9); border: 1px solid rgba(36, 67, 255, .25); white-space: nowrap; will-change: transform; }
.xh.is-dark .xh__read { background: rgba(14, 14, 16, .9); border-color: rgba(132, 148, 255, .3); }
.xh__label { display: none; margin-left: 8px; padding-left: 8px; border-left: 1px solid currentColor; text-transform: uppercase; color: var(--ink); }
.xh.is-dark .xh__label { color: var(--paper); }
.xh.has-label .xh__label { display: inline; }

/* ---------- inspector redlines ---------- */
.insp { position: fixed; inset: 0; z-index: 9300; pointer-events: none; display: none; }
html.inspect-on .insp { display: block; }
.insp > div { position: absolute; left: 0; top: 0; }
.insp__m { border-style: solid; border-color: rgba(245, 230, 99, .62); box-sizing: border-box; }
.insp__p { border-style: solid; border-color: rgba(36, 67, 255, .17); box-sizing: border-box; }
.insp__c { outline: 1px dashed rgba(36, 67, 255, .7); outline-offset: -1px; background: rgba(36, 67, 255, .05); }
.insp__b { outline: 1px solid var(--cobalt); outline-offset: -.5px; }
.insp__dw, .insp__dh { --c: var(--cobalt); }
.insp__dw { height: 9px; border-left: 1px solid var(--c); border-right: 1px solid var(--c); }
.insp__dw::before { content: ""; position: absolute; left: 0; right: 0; top: 4px; height: 1px; background: var(--c); }
.insp__dh { width: 9px; border-top: 1px solid var(--c); border-bottom: 1px solid var(--c); }
.insp__dh::before { content: ""; position: absolute; top: 0; bottom: 0; left: 4px; width: 1px; background: var(--c); }
.insp__dw span, .insp__dh span { position: absolute; font: 10px/1 var(--font-mono); color: var(--paper); background: var(--cobalt); padding: 3px 5px 2px; white-space: nowrap; }
.insp__dw span { left: 50%; top: -14px; transform: translateX(-50%); }
.insp__dh span { top: 50%; left: 14px; transform: translateY(-50%); }
.insp__tip { min-width: 180px; max-width: 300px; background: var(--ink); color: var(--paper); font: 11px/1.5 var(--font-mono); letter-spacing: .01em; padding: 9px 11px 8px; box-shadow: 0 10px 30px -12px rgba(0, 0, 0, .45); }
.insp__tip b { font-weight: 400; color: var(--label); }
.insp__tip i { font-style: normal; color: var(--cobalt-light); }
.insp__tip .r { display: flex; justify-content: space-between; gap: 16px; }
.insp__tip .r span:first-child { color: rgba(243, 242, 238, .55); }
.insp__legend { position: fixed !important; left: 16px !important; top: auto !important; bottom: 16px; display: flex; gap: 12px; align-items: center; padding: 8px 12px; background: var(--ink); color: var(--paper); font: 10.5px/1 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; }
.insp__legend em { font-style: normal; display: inline-flex; align-items: center; gap: 6px; color: rgba(243, 242, 238, .75); }
.insp__legend em::before { content: ""; width: 10px; height: 10px; background: var(--sw); }
.insp__legend b { font-weight: 400; color: var(--label); }
@media (max-width: 600px) { .insp__legend { left: 8px !important; right: 8px; bottom: 8px; flex-wrap: wrap; gap: 8px 12px; } }

/* ==========================================================================
   Utilities
   ========================================================================== */
.only-coarse { display: none; }
html.coarse .only-coarse { display: inline; }
html.coarse .only-fine { display: none; }
html.reduced-motion .only-motion { display: none; }
.sec__body { margin-top: clamp(40px, 5vw, 72px); }
.center { text-align: center; }
.mt-0 { margin-top: 0 !important; }
html.js:not(.reduced-motion) [data-stagger]:not(.is-in) > * { opacity: 0; }
html.js:not(.reduced-motion):not(.motion-ready) [data-stagger] > * { animation: reveal-failsafe .5s ease 3s forwards; }
html.js:not(.reduced-motion) [data-ruler]:not(.is-in) { transform: scaleX(0); }
html.js:not(.reduced-motion) [data-scan]:not(.is-in) { clip-path: inset(0 0 100% 0); }
html.js:not(.reduced-motion):not(.motion-ready) [data-scan] { animation: reveal-failsafe .5s ease 3s forwards; }
html.js:not(.reduced-motion):not(.motion-ready) [data-ruler] { animation: ruler-failsafe .5s ease 3s forwards; }
@keyframes ruler-failsafe { to { transform: none; } }

/* ==========================================================================
   Home
   ========================================================================== */
.hero { position: relative; padding-top: calc(var(--bar-h) + clamp(28px, 4vw, 56px)); padding-bottom: clamp(64px, 8vw, 120px); }
.hero__grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; row-gap: 0; align-items: start; }
.hero__meta { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--ink); }
.hero__meta-r { display: flex; gap: 28px; font: 11.5px/1.3 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
.hero__head { grid-column: 1 / span 9; grid-row: 2; padding-top: clamp(36px, 5vw, 76px); }
.hero__title { max-width: 14ch; }
.hero__body { grid-column: 1 / span 5; grid-row: 3; padding-top: clamp(32px, 3.6vw, 52px); }
.hero__body .lead { max-width: 40ch; }
.try { grid-column: 6 / span 3; grid-row: 3; align-self: start; margin-top: clamp(32px, 3.6vw, 52px); position: relative; background: var(--white); border: 1px solid var(--ink); padding: 18px 18px 20px; box-shadow: 6px 6px 0 var(--grid); }
.hero__fig { grid-column: 10 / span 3; grid-row: 2 / span 2; align-self: end; margin-top: clamp(36px, 5vw, 76px); }
.try__tag { display: flex; align-items: center; gap: 10px; font: 11px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); }
.try__title { margin-top: 14px; font: 640 19px/1.25 var(--font-sans); letter-spacing: -.015em; }
.try__txt { margin-top: 8px; font-size: 14.5px; line-height: 1.55; color: var(--ink-2); }
.try__btn { margin-top: 16px; width: 100%; }
.try__btn[aria-pressed="true"] { --bg: var(--ink); --bd: var(--ink); }
.try__arrow { position: absolute; right: -6px; top: -86px; width: 120px; height: 80px; color: var(--cobalt); }
html.inspect-on .try { border-color: var(--cobalt); box-shadow: 6px 6px 0 var(--label); }
@media (max-width: 1180px) {
  .hero__head { grid-column: 1 / -1; }
  .hero__body { grid-column: 1 / span 7; }
  .try { grid-column: 1 / span 7; grid-row: 4; }
  .hero__fig { grid-column: 9 / span 4; grid-row: 3 / span 2; align-self: start; }
  .try__arrow { display: none; }
}
@media (max-width: 720px) {
  .hero__meta-r span:last-child { display: none; }
  .hero__body, .try, .hero__fig { grid-column: 1 / -1; grid-row: auto; }
  .hero__fig { margin-top: 40px; }
  .try { margin-top: 40px; }
}

/* live dimension line under the hero title */
.dimline { position: relative; height: 34px; margin-top: 18px; width: var(--dw, 0px); max-width: 100%; transform-origin: left; }
.dimline__bar { position: absolute; left: 0; right: 0; top: 6px; height: 9px; border-left: 1px solid var(--cobalt); border-right: 1px solid var(--cobalt); }
.dimline__bar::before { content: ""; position: absolute; left: 0; right: 0; top: 4px; height: 1px; background: var(--cobalt); }
.dimline__lab { position: absolute; left: 50%; top: 0; transform: translateX(-50%); padding: 3px 7px 2px; background: var(--cobalt); color: var(--paper); font: 10.5px/1 var(--font-mono); letter-spacing: .03em; white-space: nowrap; }
.dimline__type { position: absolute; left: 0; top: 22px; font: 10.5px/1 var(--font-mono); letter-spacing: .03em; color: var(--muted); white-space: nowrap; }
.dimline:not(.is-ready) { opacity: 0; }

/* what we build: specimen viewer */
.viewer { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 64px); margin-top: clamp(36px, 4vw, 56px); align-items: start; }
.viewer__list { border-top: 1px solid var(--ink); }
.viewer__item { border-bottom: 1px solid var(--line-strong); }
.viewer__link { display: grid; grid-template-columns: 54px minmax(0, 1fr) 28px; gap: 16px; padding: 24px 0; text-decoration: none; align-items: start; position: relative; }
.viewer__link::before { content: ""; position: absolute; left: -12px; right: -12px; top: 0; bottom: 0; background: var(--white); opacity: 0; transition: opacity .35s; z-index: -1; }
.viewer__item.is-active .viewer__link::before { opacity: 1; }
.viewer__no { font: 12px/1.9 var(--font-mono); color: var(--muted); }
.viewer__item.is-active .viewer__no { color: var(--cobalt); }
.viewer__body { display: grid; gap: 8px; }
.viewer__title { transition: color .3s; }
.viewer__item.is-active .viewer__title { color: var(--cobalt); }
.viewer__txt { color: var(--ink-2); font-size: 16px; line-height: 1.55; max-width: 52ch; }
.viewer__tags { font: 11px/1.4 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
.viewer__go { padding-top: 6px; color: var(--muted); transition: color .3s, transform .45s var(--ease); }
.viewer__go .ico { width: 20px; height: 20px; }
.viewer__link:hover .viewer__go, .viewer__item.is-active .viewer__go { color: var(--cobalt); transform: translateX(4px); }
.viewer__mfig { display: none; }
.viewer__stage { position: sticky; top: calc(var(--bar-h) + 32px); }
.viewer__frames { position: relative; overflow: hidden; background: var(--paper-2); }
.viewer__frame { position: absolute; inset: 0; opacity: 0; transition: opacity .6s var(--ease); }
.viewer__frame.is-active { opacity: 1; }
.viewer__frame img { width: 100%; height: 100%; object-fit: cover; }
.viewer__wipe { position: absolute; left: 0; right: 0; top: 0; height: 2px; background: var(--cobalt); opacity: 0; pointer-events: none; }
.viewer__cross { position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to right, transparent calc(50% - .5px), rgba(243, 242, 238, .55) calc(50% - .5px), rgba(243, 242, 238, .55) calc(50% + .5px), transparent calc(50% + .5px)) center / 100% 26px no-repeat,
              linear-gradient(to bottom, transparent calc(50% - .5px), rgba(243, 242, 238, .55) calc(50% - .5px), rgba(243, 242, 238, .55) calc(50% + .5px), transparent calc(50% + .5px)) center / 26px 100% no-repeat; }
.viewer__tag { position: absolute; left: 14px; bottom: 14px; }
@media (max-width: 900px) {
  .viewer { grid-template-columns: 1fr; }
  .viewer__stage { display: none; }
  .viewer__mfig { display: block; margin: 0 0 24px 70px; }
  .viewer__link::before { display: none; }
}
@media (max-width: 520px) { .viewer__mfig { margin-left: 0; } .viewer__link { grid-template-columns: 40px minmax(0, 1fr) 22px; gap: 12px; } }

/* build sequence (pinned) */
.bs { position: relative; }
.bs__pin { min-height: 100vh; display: flex; align-items: center; padding: calc(var(--bar-h) + 24px) 0 32px; }
@media (prefers-reduced-motion: no-preference) {
  html.js:not(.reduced-motion) .bs { height: calc(100vh + 320vh); }
  html.js:not(.reduced-motion) .bs__pin { position: sticky; top: 0; height: 100vh; min-height: 0; }
}
.bs__grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(28px, 3.6vw, 64px); align-items: center; width: 100%; }
.bs__title { margin-top: 22px; font-size: clamp(30px, 3.4vw, 54px); }
.bs__hint { margin-top: 14px; color: var(--dark-muted); }
.bs__steps { margin-top: 28px; border-top: 1px solid var(--dark-line); }
.bs__step { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 10px; padding: 14px 0; border-bottom: 1px solid var(--dark-line); color: var(--dark-muted); transition: color .4s; }
.bs__n { font: 11px/1.9 var(--font-mono); }
.bs__h { font: 620 17px/1.3 var(--font-sans); letter-spacing: -.01em; color: rgba(243, 242, 238, .78); transition: color .4s; }
.bs__step p { margin-top: 4px; font-size: 14.5px; line-height: 1.5; max-height: 6em; overflow: hidden; transition: max-height .5s var(--ease), opacity .4s; }
.bs__step.is-active { color: var(--paper); }
.bs__step.is-active .bs__n { color: var(--label); }
.bs__step.is-active .bs__h { color: var(--paper); }
.bs__step.is-done .bs__n { color: var(--cobalt-light); }
.bs__stage { min-width: 0; }
.bs__frame { position: relative; aspect-ratio: 1200 / 760; }
.bs__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.bs-wire { stroke: rgba(132, 148, 255, .9); }
.bs-dims { stroke: var(--label); }
.bs-dimtext text { font: 13px var(--font-mono); fill: var(--label); }
.bs svg text { font-family: var(--font-sans); }
.f-win { fill: #FBFAF7; }
.f-chrome { fill: #E7E5DF; }
.f-dot { fill: #CFCCC2; }
.f-url { fill: #F3F2EE; }
.f-side { fill: #F1F0EB; }
.f-active { fill: rgba(36, 67, 255, .12); }
.f-cobalt { fill: var(--cobalt); }
.f-label { fill: var(--label); }
.f-logo { fill: none; stroke: #FBFAF7; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.f-ico { fill: #D9D7CF; }
.f-field { fill: #FFFFFF; stroke: #DCDAD2; stroke-width: 1.5; }
.f-stroke { fill: none; stroke: #8A877E; stroke-width: 1.8; }
.f-avatar { fill: #D9D7CF; stroke: #FFFFFF; stroke-width: 2; }
.f-ink { fill: var(--ink); }
.f-card { fill: #FFFFFF; stroke: #E2E0D8; stroke-width: 1.5; }
.f-bars { stroke: var(--cobalt); stroke-width: 9; stroke-linecap: round; fill: none; }
.f-bars--ink { stroke: var(--ink); }
.f-rule { stroke: #ECEAE4; stroke-width: 1.5; fill: none; }
.f-phone { fill: #121212; }
.f-status { fill: #F1F0EB; }
.f-statusdot { fill: #8A877E; transition: fill .4s; }
.bs.is-live .f-statusdot { fill: var(--cobalt); }
.p-done { fill: #ECEAE4; }
.p-live { fill: var(--cobalt); }
.p-next { fill: #FFF8BF; stroke: #E8D84A; stroke-width: 1; }
.t-strong { font-size: 15px; font-weight: 700; fill: var(--ink); letter-spacing: -.01em; }
.t-active { font-size: 14px; font-weight: 600; fill: var(--cobalt); }
.t-nav { font-size: 14px; fill: #55534D; }
.t-muted { font-size: 13px; fill: #7B786F; }
.t-btn { font-size: 14px; font-weight: 600; fill: #FFFFFF; }
.t-h { font-size: 26px; font-weight: 700; fill: var(--ink); letter-spacing: -.02em; }
.t-h--sm { font-size: 22px; }
.t-seg-on { font-size: 13px; font-weight: 600; fill: #FFFFFF; }
.t-big { font-size: 34px; font-weight: 700; fill: var(--ink); letter-spacing: -.02em; }
.t-col { font: 11px var(--font-mono); fill: #8A877E; letter-spacing: .04em; }
.t-row { font-size: 14px; font-weight: 560; fill: var(--ink); }
.t-small { font-size: 12px; fill: #8A877E; }
.t-pill { font-size: 11.5px; font-weight: 600; fill: #55534D; }
.t-pill--on { fill: #FFFFFF; }
.t-status { font: 11px var(--font-mono); fill: #6F6C64; }
.bs-leads { stroke: var(--label); }
.bs-pins circle { fill: var(--label); }
.s-box { fill: var(--label); }
.s-inner { fill: none; stroke: var(--ink); stroke-width: 2; }
.s-word { font-size: 46px; font-weight: 800; letter-spacing: .06em; fill: var(--ink); }
.s-sub { font: 13px var(--font-mono); fill: var(--ink); letter-spacing: .04em; }
.bs__chips { position: absolute; inset: 0; pointer-events: none; }
.bs__chip { position: absolute; left: var(--x); top: var(--y); transform: translate(var(--ax), -50%); white-space: nowrap; }
.bs__chip-in { display: block; padding: 5px 8px 4px; background: var(--dark); border: 1px solid var(--label); color: var(--label); font: 11px/1.2 var(--font-mono); }
.bs__state { display: flex; gap: 12px; align-items: baseline; margin-top: 14px; font: 11px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--dark-muted); }
.bs__state b { font-weight: 400; color: var(--label); }
.bs__state-r { margin-left: auto; }
@media (max-width: 1000px) {
  .bs__grid { grid-template-columns: 1fr; gap: 18px; }
  .bs__pin { align-items: flex-start; padding-top: calc(var(--bar-h) + 18px); }
  html.js:not(.reduced-motion) .bs { height: calc(100svh + 260vh); }
  html.js:not(.reduced-motion) .bs__pin { height: 100svh; }
  .bs__title { margin-top: 14px; }
  .bs__hint { display: none; }
  .bs__steps { margin-top: 14px; }
  .bs__step { padding: 9px 0; }
  .bs__step:not(.is-active) p { max-height: 0; opacity: 0; margin: 0; }
  .bs__stage { order: 2; }
  .bs__chip-in { font-size: 9.5px; padding: 3px 5px 2px; }
  .bs__chip[data-chip="0"], .bs__chip[data-chip="3"], .bs__chip[data-chip="5"] { display: none; }
  .bs__chip[data-chip="4"] { left: auto; right: 0; transform: translateY(-50%); }
  .bs__state-r { display: none; }
}
html.reduced-motion .bs__step p { max-height: none; opacity: 1; }

/* phases */
.phases { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin-top: clamp(40px, 5vw, 64px); border-top: 1px solid var(--ink); position: relative; }
.phase { position: relative; padding: 26px 20px 28px 0; border-right: 1px solid var(--line); }
.phase + .phase { padding-left: 20px; }
.phase:last-child { border-right: 0; }
.phase__no { display: inline-block; font: 11px/1 var(--font-mono); letter-spacing: .05em; color: var(--cobalt); margin-bottom: 16px; }
.phase__tick { position: absolute; top: -6px; left: 0; width: 11px; height: 11px; background: var(--paper); border: 1px solid var(--ink); }
.phase + .phase .phase__tick { left: 20px; }
.phase.is-hot .phase__tick { background: var(--label); }
.phase .h3 { margin-bottom: 10px; }
.phase p { font-size: 15px; line-height: 1.55; color: var(--ink-2); }
.phase__get { margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--line-strong); }
.phase__get span { display: block; margin-bottom: 6px; font: 10.5px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 1100px) { .phases { grid-template-columns: repeat(2, minmax(0, 1fr)); } .phase, .phase + .phase { padding: 24px 18px 26px 0; border-right: 0; border-bottom: 1px solid var(--line); } .phase:nth-child(even) { padding-left: 18px; border-left: 1px solid var(--line); } .phase + .phase .phase__tick { left: 0; } .phase:nth-child(even) .phase__tick { left: 18px; } }
@media (max-width: 600px) { .phases { grid-template-columns: 1fr; } .phase:nth-child(even) { padding-left: 0; border-left: 0; } .phase:nth-child(even) .phase__tick { left: 0; } }

.duo { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: clamp(24px, 3vw, 48px); margin-top: clamp(48px, 6vw, 80px); align-items: end; }
@media (max-width: 760px) { .duo { grid-template-columns: 1fr; } }

/* spec sheet */
.sheet { margin-top: clamp(36px, 4vw, 56px); background: var(--white); border: 1px solid var(--ink); }
.sheet__head { display: flex; justify-content: space-between; gap: 16px; padding: 12px 18px; border-bottom: 1px solid var(--ink); background: var(--ink); color: var(--paper); font: 11px/1.3 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; }
.sheet__row { display: grid; grid-template-columns: minmax(150px, 1fr) minmax(0, 1.4fr) minmax(0, 2fr); gap: 16px 28px; padding: 18px; border-bottom: 1px solid var(--line); align-items: baseline; }
.sheet__row:last-child { border-bottom: 0; }
.sheet__k { display: inline-flex; gap: 10px; align-items: center; font-weight: 620; }
.sheet__k .ico { width: 22px; height: 22px; color: var(--cobalt); flex: none; }
.sheet__v { font: 13px/1.9 var(--font-mono); }
.sheet__v mark { background: var(--label); color: var(--ink); padding: 2px 6px 1px; white-space: nowrap; }
.sheet__d { color: var(--ink-2); font-size: 15.5px; line-height: 1.55; }
@media (max-width: 860px) { .sheet__row { grid-template-columns: 1fr; gap: 8px; } }

/* engagements teaser */
.eng-head { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 64px); align-items: end; }
@media (max-width: 900px) { .eng-head { grid-template-columns: 1fr; } }
.models { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: clamp(40px, 5vw, 64px); border: 1px solid var(--ink); background: var(--white); }
.model { position: relative; display: grid; align-content: start; gap: 14px; padding: 22px 20px 56px; border-right: 1px solid var(--line-strong); text-decoration: none; transition: background-color .35s, color .35s; }
.model:last-child { border-right: 0; }
.model__no { font: 11px/1 var(--font-mono); color: var(--cobalt); letter-spacing: .05em; }
.model__row { font-size: 15px; line-height: 1.5; color: var(--ink-2); }
.model__row span { display: block; margin-bottom: 4px; font: 10.5px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); }
.model__go { position: absolute; right: 18px; bottom: 18px; color: var(--muted); transition: transform .45s var(--ease), color .3s; }
.model__go .ico { width: 22px; height: 22px; }
.model:hover { background: var(--ink); color: var(--paper); }
.model:hover .model__row { color: rgba(243, 242, 238, .82); }
.model:hover .model__row span { color: rgba(243, 242, 238, .55); }
.model:hover .model__no, .model:hover .model__go { color: var(--label); }
.model:hover .model__go { transform: translate(3px, -3px); }
@media (max-width: 1100px) { .models { grid-template-columns: repeat(2, minmax(0, 1fr)); } .model:nth-child(2) { border-right: 0; } .model:nth-child(-n+2) { border-bottom: 1px solid var(--line-strong); } }
@media (max-width: 600px) { .models { grid-template-columns: 1fr; } .model { border-right: 0; border-bottom: 1px solid var(--line-strong); } .model:last-child { border-bottom: 0; } }

/* note cards */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 2.4vw, 36px); margin-top: clamp(36px, 4vw, 56px); }
.ncard__link { display: grid; gap: 14px; text-decoration: none; }
.ncard__img { display: block; position: relative; overflow: hidden; }
.ncard__img img { transition: transform 1.1s var(--ease), filter .6s; }
.ncard__link:hover .ncard__img img { transform: scale(1.04); }
.ncard__img::after { content: ""; position: absolute; inset: 0; border: 1px solid transparent; transition: border-color .4s, inset .4s var(--ease); }
.ncard__link:hover .ncard__img::after { border-color: var(--cobalt); inset: 8px; }
.ncard__meta { display: flex; justify-content: space-between; font: 11px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); padding-top: 12px; border-top: 1px solid var(--ink); }
.ncard__title { transition: color .3s; }
.ncard__link:hover .ncard__title { color: var(--cobalt); }
.ncard__txt { color: var(--ink-2); font-size: 15.5px; line-height: 1.55; }
@media (max-width: 1000px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .cards { grid-template-columns: 1fr; } }

/* CTA */
.cta__main { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 32px 56px; align-items: end; }
.cta__title { max-width: 12ch; }
.cta__mail { display: inline-block; margin-top: 22px; font: 500 clamp(19px, 1.6vw, 24px)/1.2 var(--font-mono); color: var(--label); text-decoration: none; border-bottom: 1px solid rgba(245, 230, 99, .45); padding-bottom: 6px; overflow-wrap: anywhere; }
.cta__mail:hover { border-bottom-color: var(--label); }
@media (max-width: 900px) { .cta__main { grid-template-columns: 1fr; } }

/* scan split style */
.split-line-mask { position: relative; }
.scan-bar { position: absolute; left: 0; width: 100%; top: .1em; bottom: .02em; background: var(--cobalt); transform: scaleX(0); pointer-events: none; z-index: 1; }
.dark .scan-bar, .try .scan-bar { background: var(--label); }

/* ==========================================================================
   Inner pages
   ========================================================================== */
.phero { position: relative; padding-top: calc(var(--bar-h) + clamp(28px, 4vw, 56px)); padding-bottom: clamp(56px, 7vw, 104px); }
.phero__meta { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--ink); }
.phero__meta-r { font: 11.5px/1.3 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--muted); text-align: right; }
.phero__grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(28px, 4vw, 72px); align-items: end; padding-top: clamp(36px, 5vw, 72px); }
.phero__grid--solo { grid-template-columns: minmax(0, 1fr); }
.phero .h1 { max-width: 14ch; }
.phero .lead { margin-top: 28px; }
.phero__fig { align-self: end; }
@media (max-width: 900px) { .phero__grid { grid-template-columns: minmax(0, 1fr); } .phero__meta-r { display: none; } }
.crumbs { display: flex; gap: 8px; align-items: center; font: 11.5px/1 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--cobalt); }
.crumbs span[aria-hidden] { opacity: .6; }

/* sticky sub-navigation */
.subnav { position: sticky; top: var(--bar-h); z-index: 50; background: var(--paper); border-block: 1px solid var(--line-strong); }
.subnav ol { display: flex; overflow-x: auto; scrollbar-width: none; }
.subnav ol::-webkit-scrollbar { display: none; }
.subnav a { display: flex; gap: 8px; align-items: baseline; padding: 14px 18px; white-space: nowrap; text-decoration: none; font-size: 14px; font-weight: 520; border-right: 1px solid var(--line); transition: background-color .3s, color .3s; }
.subnav a span { font: 10.5px/1 var(--font-mono); color: var(--muted); }
.subnav a:hover { color: var(--cobalt); }
.subnav a.is-active { background: var(--ink); color: var(--paper); }
.subnav a.is-active span { color: var(--label); }

/* services */
.svc { padding-block: clamp(64px, 8vw, 120px); border-top: 1px solid var(--line-strong); scroll-margin-top: calc(var(--bar-h) + 48px); }
.svc:first-of-type { border-top: 0; }
.svc__head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: end; }
.svc__no { font: 12px/1 var(--font-mono); color: var(--cobalt); letter-spacing: .05em; }
.svc__head .h2 { margin-top: 16px; }
.svc__head > .ico { width: 56px; height: 56px; color: var(--cobalt); }
.svc__body { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 64px); margin-top: clamp(28px, 3vw, 44px); align-items: start; }
.svc__body .lead { max-width: 52ch; }
.svc__body .prose { margin-top: 20px; }
@media (max-width: 900px) { .svc__body { grid-template-columns: 1fr; } .svc__head > .ico { width: 40px; height: 40px; } }
.lists2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; margin-top: 36px; border-top: 1px solid var(--ink); }
.lists2 > div { padding-top: 18px; }
.lists2 h3 { font: 11px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.ticks { display: grid; gap: 0; }
.ticks li { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 10px; padding: 9px 0; border-bottom: 1px dashed var(--line-strong); font-size: 15.5px; line-height: 1.45; }
.ticks .ico { width: 16px; height: 16px; color: var(--cobalt); margin-top: 3px; }
.dark .ticks li { border-color: var(--dark-line); }
.dark .ticks .ico { color: var(--cobalt-light); }
@media (max-width: 640px) { .lists2 { grid-template-columns: 1fr; } }

/* specimen bench */
.bench-wrap { margin-top: clamp(36px, 4vw, 56px); }
.bench { position: relative; height: 640px; background: var(--white); border: 1px solid var(--ink); overflow: hidden; touch-action: pan-y;
  background-image: linear-gradient(to right, rgba(36, 67, 255, .07) 1px, transparent 1px), linear-gradient(to bottom, rgba(36, 67, 255, .07) 1px, transparent 1px); background-size: 24px 24px; }
.bench__rx, .bench__ry { position: absolute; z-index: 1; pointer-events: none; }
.bench__rx { left: 24px; right: 0; top: 0; height: 24px; border-bottom: 1px solid var(--line-strong); background: linear-gradient(to right, var(--ink) 1px, transparent 1px) 0 100% / 96px 10px repeat-x, linear-gradient(to right, var(--grid-strong) 1px, transparent 1px) 0 100% / 24px 6px repeat-x, var(--paper); }
.bench__ry { top: 24px; bottom: 0; left: 0; width: 24px; border-right: 1px solid var(--line-strong); background: linear-gradient(to bottom, var(--ink) 1px, transparent 1px) 100% 0 / 10px 96px repeat-y, linear-gradient(to bottom, var(--grid-strong) 1px, transparent 1px) 100% 0 / 6px 24px repeat-y, var(--paper); }
.bench__corner { position: absolute; left: 0; top: 0; width: 24px; height: 24px; z-index: 2; background: var(--ink); }
.bench__readout { position: absolute; right: 12px; bottom: 10px; z-index: 2; font: 11px/1 var(--font-mono); letter-spacing: .03em; color: var(--muted); background: var(--white); padding: 4px 6px; border: 1px solid var(--line); }
.bench__readout b { font-weight: 400; color: var(--cobalt); }
.bench__marks { position: absolute; inset: 0; pointer-events: none; z-index: 1; }
.bench__mx, .bench__my { position: absolute; background: rgba(36, 67, 255, .35); opacity: 0; transition: opacity .25s; }
.bench__mx { top: 24px; bottom: 0; width: 1px; }
.bench__my { left: 24px; right: 0; height: 1px; }
.bench.is-dragging .bench__mx, .bench.is-dragging .bench__my { opacity: 1; }
.spec { position: absolute; left: 0; top: 0; z-index: 3; width: 248px; background: var(--paper); border: 1px solid var(--ink); box-shadow: 0 1px 0 var(--ink); user-select: none; -webkit-user-select: none; transition: box-shadow .3s; }
.spec.is-drag { box-shadow: 10px 12px 0 rgba(18, 18, 18, .14); z-index: 6; }
.spec__bar { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 0 0 0 10px; height: 32px; border-bottom: 1px solid var(--ink); background: var(--ink); color: var(--paper); font: 10.5px/1 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; cursor: grab; }
.spec__bar b { font-weight: 400; color: var(--label); }
.spec__grip { width: 34px; height: 31px; display: grid; place-items: center; background: transparent; border: 0; border-left: 1px solid rgba(243, 242, 238, .2); color: var(--paper); cursor: grab; }
.spec__grip .ico { width: 18px; height: 18px; }
.spec__grip:focus-visible { outline: 2px solid var(--label); outline-offset: -3px; }
.spec__body { padding: 16px; }
.spec__foot { display: flex; justify-content: space-between; padding: 6px 10px; border-top: 1px dashed var(--line-strong); font: 10px/1 var(--font-mono); color: var(--muted); }
.spec--wide { width: 300px; }
/* specimen components */
.ui-btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; width: 100%; min-height: 44px; padding: 0 16px; border: 0; background: var(--cobalt); color: var(--paper); font: 600 15px/1 var(--font-sans); transition: background-color .25s, transform .15s; }
.ui-btn:hover { background: var(--cobalt-deep); }
.ui-btn:active { transform: translateY(1px); }
.ui-btn[data-state="busy"] { background: var(--ink-2); }
.ui-btn[data-state="done"] { background: var(--ink); }
.ui-btn__spin { width: 16px; height: 16px; border: 2px solid rgba(243, 242, 238, .35); border-top-color: var(--paper); border-radius: 50%; display: none; animation: spin .8s linear infinite; }
.ui-btn[data-state="busy"] .ui-btn__spin { display: inline-block; }
.ui-btn .ico { width: 18px; height: 18px; display: none; }
.ui-btn[data-state="done"] .ico { display: inline-block; color: var(--label); }
@keyframes spin { to { transform: rotate(360deg); } }
.ui-switch { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; min-height: 44px; padding: 0; background: transparent; border: 0; font: 520 15px/1.3 var(--font-sans); color: var(--ink); text-align: left; }
.ui-switch__track { position: relative; flex: none; width: 46px; height: 26px; border-radius: 13px; background: var(--paper-3); transition: background-color .3s; }
.ui-switch__thumb { position: absolute; left: 3px; top: 3px; width: 20px; height: 20px; border-radius: 50%; background: var(--white); box-shadow: 0 1px 2px rgba(0, 0, 0, .25); transition: transform .35s var(--ease); }
.ui-switch[aria-checked="true"] .ui-switch__track { background: var(--cobalt); }
.ui-switch[aria-checked="true"] .ui-switch__thumb { transform: translateX(20px); }
.ui-switch__sub { display: block; font: 11px/1.3 var(--font-mono); color: var(--muted); margin-top: 3px; }
.ui-card { border: 1px solid var(--line-strong); background: var(--white); padding: 14px; }
.ui-card__top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.ui-card__chip { font: 10.5px/1 var(--font-mono); padding: 4px 6px; background: var(--label); }
.ui-card__title { margin-top: 12px; font: 640 17px/1.25 var(--font-sans); }
.ui-card__meta { margin-top: 4px; font-size: 13.5px; color: var(--muted); }
.ui-card__bar { margin-top: 14px; height: 6px; background: var(--paper-3); position: relative; }
.ui-card__bar i { position: absolute; left: 0; top: 0; bottom: 0; width: 64%; background: var(--cobalt); }
.ui-card__row { display: flex; justify-content: space-between; margin-top: 8px; font: 11px/1 var(--font-mono); color: var(--muted); }
.ui-field { display: grid; gap: 6px; }
.ui-field label { font: 600 13px/1.2 var(--font-sans); }
.ui-field input { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid var(--line-strong); background: var(--white); font: 15px/1.2 var(--font-sans); color: var(--ink); border-radius: 0; }
.ui-field input:focus { outline: none; border-color: var(--cobalt); box-shadow: 0 0 0 3px rgba(36, 67, 255, .18); }
.ui-field[data-valid="false"] input { border-color: #B3261E; }
.ui-field[data-valid="true"] input { border-color: #1F7A4D; }
.ui-field__msg { min-height: 1.4em; font: 11.5px/1.3 var(--font-mono); color: var(--muted); }
.ui-field[data-valid="false"] .ui-field__msg { color: #B3261E; }
.ui-field[data-valid="true"] .ui-field__msg { color: #1F7A4D; }
.ui-chart__tabs { display: flex; border: 1px solid var(--ink); margin-bottom: 12px; }
.ui-chart__tabs button { flex: 1; min-height: 32px; border: 0; background: transparent; font: 11px/1 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; }
.ui-chart__tabs button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.ui-chart svg { width: 100%; height: 132px; overflow: visible; }
.ui-chart rect { fill: var(--cobalt); }
.ui-chart rect.is-hot { fill: var(--ink); }
.ui-chart text { font: 10px var(--font-mono); fill: var(--muted); }
.ui-chart__val { margin-top: 8px; font: 11.5px/1.3 var(--font-mono); color: var(--muted); min-height: 1.3em; }
.bench__tools { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; align-items: center; margin-top: 14px; }
.bench__tools .note { max-width: 70ch; }
@media (max-width: 760px) { .bench { height: 1100px; } .spec, .spec--wide { width: 232px; } }

/* process: phase detail */
.pflow { counter-reset: ph; }
.pstep { display: grid; grid-template-columns: var(--margin-col) minmax(0, 1fr); column-gap: clamp(24px, 3.2vw, 56px); padding-block: clamp(56px, 7vw, 104px); border-top: 1px solid var(--line-strong); scroll-margin-top: calc(var(--bar-h) + 24px); }
.pstep__side { position: relative; }
.pstep__side-in { position: sticky; top: calc(var(--bar-h) + 28px); display: grid; gap: 14px; }
.pstep__big { font: 700 clamp(56px, 7vw, 104px)/.9 var(--font-sans); letter-spacing: -.05em; color: var(--ink); }
.pstep__big span { color: var(--cobalt); }
.pstep__dur { font: 11.5px/1.4 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }
.pstep__main { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 56px); align-items: start; }
.pstep__main .h2 { grid-column: 1 / -1; }
.receive { background: var(--white); border: 1px solid var(--ink); }
.receive__head { display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px; background: var(--label); border-bottom: 1px solid var(--ink); font: 11px/1.3 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; }
.receive .ticks { padding: 6px 14px 10px; }
.receive .ticks li:last-child { border-bottom: 0; }
@media (max-width: 900px) { .pstep { grid-template-columns: 1fr; } .pstep__side-in { position: static; display: flex; flex-wrap: wrap; align-items: baseline; gap: 12px 18px; margin-bottom: 20px; } .pstep__main { grid-template-columns: 1fr; } }

/* sprint board (Flip) */
.board { margin-top: clamp(32px, 4vw, 48px); border: 1px solid var(--ink); background: var(--white); }
.board__head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px 24px; padding: 12px 14px; border-bottom: 1px solid var(--ink); font: 11px/1.3 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; }
.board__days { display: flex; gap: 4px; }
.board__days i { width: 16px; height: 6px; background: var(--paper-3); transition: background-color .3s; }
.board__days i.is-on { background: var(--cobalt); }
.board__phase { color: var(--cobalt); }
.board__cols { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); min-height: 380px; }
.board__col { border-right: 1px solid var(--line); padding: 12px; display: flex; flex-direction: column; gap: 10px; }
.board__col:last-child { border-right: 0; }
.board__col h3 { display: flex; justify-content: space-between; font: 11px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); padding-bottom: 8px; border-bottom: 1px dashed var(--line-strong); }
.board__card { background: var(--paper); border: 1px solid var(--line-strong); padding: 10px 11px; font-size: 14px; line-height: 1.35; }
.board__card small { display: block; margin-top: 6px; font: 10.5px/1 var(--font-mono); color: var(--muted); letter-spacing: .03em; }
.board__card.is-done { background: var(--white); color: var(--muted); }
.board__card.is-done small::after { content: " / accepted"; color: #1F7A4D; }
.board__controls { display: flex; gap: 10px; align-items: center; padding: 12px 14px; border-top: 1px solid var(--line); }
.board__controls .note { margin-left: auto; }
@media (max-width: 760px) { .board__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); } .board__col:nth-child(2) { border-right: 0; } .board__col:nth-child(-n+2) { border-bottom: 1px solid var(--line); } }

/* rituals */
.rituals { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: clamp(36px, 4vw, 56px); border-top: 1px solid var(--dark-line-strong); }
.ritual { padding: 26px 22px 30px 0; border-bottom: 1px solid var(--dark-line); }
.ritual:not(:nth-child(3n+1)) { padding-left: 22px; border-left: 1px solid var(--dark-line); }
.ritual .ico { width: 30px; height: 30px; color: var(--cobalt-light); }
.ritual__when { display: block; margin-top: 18px; font: 11px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--label); }
.ritual .h3 { margin-top: 10px; }
.ritual p { margin-top: 8px; font-size: 15.5px; color: var(--dark-muted); }
@media (max-width: 900px) { .rituals { grid-template-columns: 1fr; } .ritual, .ritual:not(:nth-child(3n+1)) { padding: 24px 0; border-left: 0; } }

/* engagements: model detail */
.mdet { display: grid; grid-template-columns: var(--margin-col) minmax(0, 1fr); column-gap: clamp(24px, 3.2vw, 56px); padding-block: clamp(48px, 6vw, 88px); border-top: 1px solid var(--line-strong); scroll-margin-top: calc(var(--bar-h) + 24px); }
.mdet__side { font: 12px/1.5 var(--font-mono); color: var(--muted); }
.mdet__side b { display: block; font: 700 clamp(40px, 4.4vw, 64px)/1 var(--font-sans); letter-spacing: -.04em; color: var(--ink); margin-bottom: 10px; }
.mdet__grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(24px, 3vw, 48px); margin-top: 22px; }
.facts { display: grid; gap: 0; border-top: 1px solid var(--ink); }
.facts div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 15.5px; line-height: 1.5; }
.facts dt { font: 11px/1.6 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 900px) { .mdet { grid-template-columns: 1fr; } .mdet__side { margin-bottom: 14px; } .mdet__grid { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .facts div { grid-template-columns: 1fr; gap: 4px; } }

/* project scoper */
.scoper { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); border: 1px solid var(--ink); background: var(--white); margin-top: clamp(32px, 4vw, 48px); }
.scoper__in { padding: clamp(20px, 2.6vw, 36px); border-right: 1px solid var(--ink); }
.scoper__out { padding: clamp(20px, 2.6vw, 36px); background: var(--dark); color: var(--paper); position: relative; }
.scoper__out-in { position: sticky; top: calc(var(--bar-h) + 24px); }
.sc-group { border: 0; padding: 0; margin: 0; }
.sc-group + .sc-group { margin-top: 28px; padding-top: 24px; border-top: 1px dashed var(--line-strong); }
.sc-group legend { float: left; width: 100%; display: flex; gap: 10px; align-items: baseline; padding: 0; font: 640 18px/1.3 var(--font-sans); letter-spacing: -.01em; }
.sc-group legend + * { clear: both; padding-top: 6px; }
.sc-group legend span { font: 11px/1 var(--font-mono); color: var(--cobalt); letter-spacing: .05em; }
.sc-hint { margin-top: 6px; font-size: 14px; color: var(--muted); }
.sc-plat { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; margin-top: 14px; }
.sc-opt { position: relative; display: block; cursor: pointer; }
.sc-opt input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.sc-opt span { display: grid; gap: 6px; height: 100%; min-height: 44px; padding: 11px 12px; border: 1px solid var(--line-strong); background: var(--paper); font-size: 14.5px; line-height: 1.3; font-weight: 520; transition: border-color .25s, background-color .25s, color .25s; }
.sc-opt span small { font: 10.5px/1.3 var(--font-mono); color: var(--muted); font-weight: 400; }
.sc-opt input:checked + span { border-color: var(--cobalt); background: var(--cobalt); color: var(--paper); }
.sc-opt input:checked + span small { color: var(--paper); }
.sc-opt input:focus-visible + span { outline: 2px solid var(--cobalt); outline-offset: 2px; }
.sc-opt:hover span { border-color: var(--ink); }
.sc-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.sc-chips .sc-opt span { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 8px 12px; border-radius: 20px; }
.sc-chips .sc-opt span::before { content: ""; width: 10px; height: 10px; border: 1px solid currentColor; border-radius: 2px; flex: none; }
.sc-chips .sc-opt input:checked + span::before { background: var(--label); border-color: var(--label); }
.sc-model { display: grid; gap: 4px; padding-bottom: 18px; border-bottom: 1px solid var(--dark-line); }
.sc-model__k { font: 11px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--dark-muted); }
.sc-model__v { margin-top: 8px; font: 680 clamp(28px, 2.8vw, 40px)/1.05 var(--font-sans); letter-spacing: -.03em; color: var(--label); }
.sc-model__why { margin-top: 8px; color: rgba(243, 242, 238, .86); font-size: 15.5px; line-height: 1.55; }
.sc-total { display: flex; flex-wrap: wrap; gap: 6px 18px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--dark-line); }
.sc-total b { font: 680 24px/1 var(--font-sans); letter-spacing: -.02em; }
.sc-total span { font: 11px/1.4 var(--font-mono); color: var(--dark-muted); text-transform: uppercase; letter-spacing: .05em; }
.tl { margin-top: 18px; }
.tl__axis { position: relative; height: 22px; margin-left: 96px; border-bottom: 1px solid var(--dark-line-strong); }
.tl__tick { position: absolute; bottom: -1px; width: 1px; height: 6px; background: var(--dark-line-strong); }
.tl__tick.is-major { height: 10px; background: var(--dark-muted); }
.tl__tick span { position: absolute; bottom: 12px; left: 0; transform: translateX(-50%); font: 10px/1 var(--font-mono); color: var(--dark-muted); white-space: nowrap; }
.tl__rows { display: grid; gap: 10px; margin-top: 12px; }
.tl__row { display: grid; grid-template-columns: 96px minmax(0, 1fr); align-items: center; }
.tl__name { font: 11px/1.2 var(--font-mono); letter-spacing: .03em; color: rgba(243, 242, 238, .86); padding-right: 8px; }
.tl__name small { display: block; color: var(--dark-muted); margin-top: 2px; }
.tl__track { position: relative; height: 26px; background: linear-gradient(to right, var(--dark-line) 1px, transparent 1px) 0 0 / var(--wk, 4%) 100% repeat-x; }
.tl__bar { position: absolute; top: 3px; bottom: 3px; left: 0; right: 0; }
.tl__solid, .tl__hatch { position: absolute; top: 0; bottom: 0; left: 0; width: 0; }
.tl__solid { background: var(--cobalt); }
.tl__hatch { background: repeating-linear-gradient(135deg, rgba(132, 148, 255, .9) 0 3px, transparent 3px 7px); border: 1px solid rgba(132, 148, 255, .9); border-left: 0; }
.tl__row--care .tl__solid { background: transparent; border: 1px dashed var(--label); }
.tl__row--total .tl__solid { background: var(--paper); }
.tl__row--total .tl__hatch { background: repeating-linear-gradient(135deg, rgba(243, 242, 238, .85) 0 3px, transparent 3px 7px); border-color: rgba(243, 242, 238, .85); }
.tl__row--total .tl__name { color: var(--paper); }
.tl__legend { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 14px; font: 10.5px/1.3 var(--font-mono); color: var(--dark-muted); }
.tl__legend i { display: inline-block; width: 18px; height: 9px; margin-right: 6px; vertical-align: -1px; }
.tl__legend .l1 { background: var(--cobalt); }
.tl__legend .l2 { background: repeating-linear-gradient(135deg, rgba(132, 148, 255, .9) 0 3px, transparent 3px 7px); border: 1px solid rgba(132, 148, 255, .9); }
.tl__legend .l3 { border: 1px dashed var(--label); }
.sc-flags { margin-top: 18px; display: grid; gap: 8px; }
.sc-flags li { display: grid; grid-template-columns: 14px minmax(0, 1fr); gap: 10px; font-size: 14px; line-height: 1.45; color: rgba(243, 242, 238, .86); }
.sc-flags li::before { content: ""; width: 8px; height: 8px; margin-top: 6px; background: var(--label); }
.sc-math { margin-top: 18px; border-top: 1px solid var(--dark-line); }
.sc-math summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 12px; padding: 14px 0; font: 11.5px/1.3 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--paper); }
.sc-math summary::-webkit-details-marker { display: none; }
.sc-math summary .ico { width: 16px; height: 16px; transition: transform .4s var(--ease); }
.sc-math[open] summary .ico { transform: rotate(45deg); }
.sc-math__body { font: 12.5px/1.65 var(--font-mono); color: rgba(243, 242, 238, .82); padding-bottom: 8px; }
.sc-math__body p + p { margin-top: 10px; }
.sc-math__body b { font-weight: 400; color: var(--label); }
.sc-note { margin-top: 18px; padding: 12px 14px; border: 1px solid var(--label); color: var(--paper); font-size: 14px; line-height: 1.5; }
.sc-note strong { color: var(--label); font-weight: 600; }
.sc-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
@media (max-width: 1000px) { .scoper { grid-template-columns: 1fr; } .scoper__in { border-right: 0; border-bottom: 1px solid var(--ink); } }
@media (max-width: 480px) { .tl__axis { margin-left: 74px; } .tl__row { grid-template-columns: 74px minmax(0, 1fr); } .tl__name { font-size: 10px; } }

/* FAQ */
.faq { margin-top: clamp(28px, 3vw, 44px); border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line-strong); }
.faq summary { cursor: pointer; list-style: none; display: grid; grid-template-columns: 54px minmax(0, 1fr) 24px; gap: 12px; align-items: baseline; padding: 22px 0; }
.faq summary::-webkit-details-marker { display: none; }
.faq__no { font: 11px/1 var(--font-mono); color: var(--cobalt); letter-spacing: .05em; }
.faq__q { font: 620 clamp(18px, 1.5vw, 22px)/1.3 var(--font-sans); letter-spacing: -.012em; }
.faq summary .ico { width: 20px; height: 20px; color: var(--cobalt); transition: transform .45s var(--ease); align-self: center; }
.faq details[open] summary .ico { transform: rotate(45deg); }
.faq summary:hover .faq__q { color: var(--cobalt); }
.faq__a { padding: 0 0 26px 66px; max-width: 76ch; color: var(--ink-2); }
.faq__a p + p { margin-top: .8em; }
@media (max-width: 640px) { .faq summary { grid-template-columns: 38px minmax(0, 1fr) 20px; } .faq__a { padding-left: 0; } }

/* standards */
.std { padding-block: clamp(56px, 7vw, 104px); border-top: 1px solid var(--line-strong); scroll-margin-top: calc(var(--bar-h) + 48px); }
.std__head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px 32px; align-items: end; }
.std__spec { justify-self: end; text-align: right; }
.std__spec mark { background: var(--label); color: var(--ink); padding: 3px 8px 2px; font: 13px/1.9 var(--font-mono); white-space: nowrap; }
.std__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: clamp(28px, 3vw, 40px); border-top: 1px solid var(--ink); }
.std__col { padding: 20px 22px 8px 0; }
.std__col + .std__col { padding-left: 22px; border-left: 1px solid var(--line); }
.std__col h3 { font: 11px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.std__col p, .std__col li { font-size: 15.5px; line-height: 1.55; }
.std__col p + p { margin-top: .7em; }
.std__col ul { display: grid; gap: 8px; }
.std__col ul li { position: relative; padding-left: 16px; }
.std__col ul li::before { content: ""; position: absolute; left: 0; top: .62em; width: 7px; height: 1px; background: var(--cobalt); }
.src { margin-top: 22px; padding-top: 14px; border-top: 1px dashed var(--line-strong); font: 11.5px/1.65 var(--font-mono); color: var(--muted); }
.src b { font-weight: 400; color: var(--ink); text-transform: uppercase; letter-spacing: .05em; margin-right: 8px; }
.src cite { font-style: normal; }
@media (max-width: 960px) { .std__head { grid-template-columns: 1fr; } .std__spec { justify-self: start; text-align: left; } .std__grid { grid-template-columns: 1fr; } .std__col, .std__col + .std__col { padding: 18px 0; border-left: 0; border-bottom: 1px solid var(--line); } }

/* contrast checker */
.cc { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); border: 1px solid var(--ink); background: var(--white); margin-top: clamp(28px, 3vw, 40px); }
.cc__in { padding: clamp(18px, 2.4vw, 32px); border-right: 1px solid var(--ink); display: grid; gap: 18px; align-content: start; }
.cc__pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.cc__field { display: grid; gap: 8px; }
.cc__field > span { font: 11px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.cc__row { display: flex; gap: 8px; align-items: center; }
.cc__row input[type="color"] { width: 44px; height: 44px; padding: 2px; border: 1px solid var(--line-strong); background: var(--white); cursor: pointer; }
.cc__row input[type="text"] { flex: 1; min-width: 0; min-height: 44px; padding: 8px 10px; border: 1px solid var(--line-strong); background: var(--white); font: 14px/1 var(--font-mono); text-transform: uppercase; border-radius: 0; color: var(--ink); }
.cc__row input[type="text"]:focus { outline: none; border-color: var(--cobalt); box-shadow: 0 0 0 3px rgba(36, 67, 255, .18); }
.cc__presets { display: flex; flex-wrap: wrap; gap: 8px; }
.cc__presets button { display: inline-flex; align-items: center; gap: 8px; min-height: 36px; padding: 0 10px; border: 1px solid var(--line-strong); background: var(--paper); font: 11px/1 var(--font-mono); letter-spacing: .03em; }
.cc__presets button i { width: 16px; height: 16px; border: 1px solid var(--line-strong); }
.cc__presets button:hover { border-color: var(--ink); }
.cc__out { padding: clamp(18px, 2.4vw, 32px); display: grid; gap: 16px; align-content: start; }
.cc__sample { padding: 22px; border: 1px solid var(--line); }
.cc__sample p:first-child { font: 650 24px/1.2 var(--font-sans); letter-spacing: -.02em; }
.cc__sample p + p { margin-top: 8px; font-size: 15.5px; }
.cc__ratio { display: flex; align-items: baseline; gap: 12px; }
.cc__ratio b { font: 700 clamp(36px, 3.6vw, 52px)/1 var(--font-sans); letter-spacing: -.03em; }
.cc__ratio span { font: 11px/1.3 var(--font-mono); color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.cc__checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--ink); }
.cc__checks li { display: flex; justify-content: space-between; gap: 8px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.cc__checks li:nth-child(odd) { padding-right: 12px; }
.cc__checks li:nth-child(even) { padding-left: 12px; border-left: 1px solid var(--line); }
.cc__pass, .cc__fail { font: 11px/1 var(--font-mono); padding: 4px 6px; letter-spacing: .04em; }
.cc__pass { background: var(--label); color: var(--ink); }
.cc__fail { background: var(--ink); color: var(--paper); }
@media (max-width: 860px) { .cc { grid-template-columns: 1fr; } .cc__in { border-right: 0; border-bottom: 1px solid var(--ink); } }
@media (max-width: 480px) { .cc__pair, .cc__checks { grid-template-columns: 1fr; } .cc__checks li:nth-child(even) { padding-left: 0; border-left: 0; } }

/* Core Web Vitals bands */
.cwv { display: grid; gap: 22px; margin-top: 26px; }
.cwv__row { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 16px; align-items: center; }
.cwv__k { font: 640 16px/1.2 var(--font-sans); }
.cwv__k small { display: block; font: 10.5px/1.3 var(--font-mono); color: var(--muted); font-weight: 400; margin-top: 4px; }
.cwv__bar { position: relative; display: grid; height: 34px; border: 1px solid var(--ink); }
.cwv__seg { display: flex; align-items: center; padding: 0 10px; font: 10.5px/1 var(--font-mono); letter-spacing: .03em; white-space: nowrap; overflow: hidden; transform-origin: left; }
.cwv__seg--good { background: var(--label); }
.cwv__seg--ni { background: var(--paper-3); border-left: 1px solid var(--ink); }
.cwv__seg--poor { background: var(--ink); color: var(--paper); border-left: 1px solid var(--ink); }
.cwv__mark { position: absolute; top: -18px; transform: translateX(-50%); font: 10.5px/1 var(--font-mono); color: var(--ink); white-space: nowrap; }
.cwv__mark::after { content: ""; position: absolute; left: 50%; top: 14px; width: 1px; height: 40px; background: var(--ink); }
@media (max-width: 600px) { .cwv__row { grid-template-columns: 1fr; gap: 8px; } }

/* notes index */
.nlist { border-top: 1px solid var(--ink); margin-top: clamp(32px, 4vw, 48px); }
.nitem { border-bottom: 1px solid var(--line-strong); }
.nitem__link { display: grid; grid-template-columns: 90px minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(18px, 3vw, 48px); padding: clamp(26px, 3vw, 40px) 0; text-decoration: none; align-items: start; }
.nitem__no { font: 12px/1.6 var(--font-mono); color: var(--cobalt); letter-spacing: .04em; }
.nitem__no small { display: block; color: var(--muted); }
.nitem .h2 { font-size: clamp(26px, 3vw, 44px); transition: color .3s; }
.nitem__link:hover .h2 { color: var(--cobalt); }
.nitem__txt { margin-top: 14px; color: var(--ink-2); max-width: 54ch; }
.nitem__meta { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 6px 16px; font: 11px/1.3 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); }
.nitem__img { overflow: hidden; }
.nitem__img img { transition: transform 1.1s var(--ease); }
.nitem__link:hover .nitem__img img { transform: scale(1.04); }
@media (max-width: 900px) { .nitem__link { grid-template-columns: 1fr; } }

/* article */
.article { display: grid; grid-template-columns: var(--margin-col) minmax(0, 68ch) minmax(0, 1fr); column-gap: clamp(24px, 3.2vw, 56px); }
.article__side { position: relative; }
.article__side-in { position: sticky; top: calc(var(--bar-h) + 28px); display: grid; gap: 16px; }
.readbar { position: relative; width: 6px; height: 160px; border: 1px solid var(--ink); background: var(--white); }
.readbar i { position: absolute; left: 0; right: 0; top: 0; height: 100%; background: var(--cobalt); transform-origin: top; transform: scaleY(0); }
.readbar__lab { font: 10.5px/1.4 var(--font-mono); color: var(--muted); letter-spacing: .03em; text-transform: uppercase; }
.article__body { font-size: 18px; line-height: 1.7; min-width: 0; }
.article__body > * + * { margin-top: 1.1em; }
.article__body h2 { font: 650 clamp(24px, 2.2vw, 30px)/1.2 var(--font-sans); letter-spacing: -.022em; margin-top: 2em; scroll-margin-top: calc(var(--bar-h) + 24px); }
.article__body h3 { font: 620 20px/1.3 var(--font-sans); margin-top: 1.6em; }
.article__body ul, .article__body ol { padding-left: 1.2em; }
.article__body li + li { margin-top: .5em; }
.article__body li::marker { color: var(--cobalt); }
.article__body .fig { margin-block: 2em; }
.article__aside { position: relative; }
.aside-note { position: relative; font: 12px/1.6 var(--font-mono); color: var(--muted); padding: 12px 0 0 16px; border-top: 1px solid var(--ink); max-width: 30ch; }
.aside-note::before { content: ""; position: absolute; left: 0; top: 19px; width: 9px; height: 1px; background: var(--cobalt); }
.aside-note b { font-weight: 400; color: var(--ink); text-transform: uppercase; letter-spacing: .05em; display: block; margin-bottom: 4px; }
.keypoints { background: var(--white); border: 1px solid var(--ink); padding: 18px 20px; }
.keypoints h2 { margin: 0 0 10px !important; font: 11.5px/1 var(--font-mono) !important; letter-spacing: .06em !important; text-transform: uppercase; color: var(--cobalt); }
.keypoints ul { padding-left: 1.1em; font-size: 16px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--ink); background: var(--white); }
.dtable { width: 100%; border-collapse: collapse; min-width: 560px; font-size: 15px; line-height: 1.45; }
.dtable th, .dtable td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.dtable thead th { font: 11px/1.3 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; background: var(--ink); color: var(--paper); }
.dtable tbody th { font-weight: 620; }
.dtable tr:last-child td, .dtable tr:last-child th { border-bottom: 0; }
.refs { font: 12px/1.65 var(--font-mono); color: var(--muted); }
.refs li + li { margin-top: 6px; }
.article__end { margin-top: 3em; padding-top: 1.4em; border-top: 1px solid var(--ink); display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; font: 11.5px/1.4 var(--font-mono); color: var(--muted); }
@media (max-width: 1180px) { .article { grid-template-columns: var(--margin-col) minmax(0, 1fr); } .article__aside { display: none; } }
@media (max-width: 900px) { .article { grid-template-columns: minmax(0, 1fr); } .article__side-in { position: static; display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: center; margin-bottom: 26px; } .readbar { display: none; } .article__body { font-size: 17px; } }

/* about */
.plate { position: relative; height: clamp(320px, 42vw, 560px); margin-top: clamp(40px, 5vw, 72px); border: 1px solid var(--ink); background: var(--white); overflow: hidden; }
.plate canvas, .plate svg.plate__fallback { position: absolute; inset: 0; width: 100%; height: 100%; }
.plate svg.plate__fallback { color: var(--ink); }
.plate__fallback path { fill: none; stroke: currentColor; stroke-width: 1; opacity: .5; }
.plate__fallback path.is-major { stroke: var(--cobalt); opacity: .9; stroke-width: 1.4; }
.plate.has-gl svg.plate__fallback { display: none; }
.plate__tag { position: absolute; left: 14px; top: 14px; z-index: 2; }
.plate__cap { position: absolute; right: 14px; bottom: 12px; z-index: 2; font: 10.5px/1 var(--font-mono); letter-spacing: .04em; color: var(--muted); background: var(--white); padding: 4px 6px; border: 1px solid var(--line); }
.princ { margin-top: clamp(32px, 4vw, 48px); border-top: 1px solid var(--ink); }
.princ li { display: grid; grid-template-columns: 70px minmax(0, 1fr) minmax(0, 1.2fr); gap: 16px clamp(20px, 3vw, 48px); padding: 26px 0; border-bottom: 1px solid var(--line-strong); align-items: baseline; }
.princ__no { font: 12px/1 var(--font-mono); color: var(--cobalt); letter-spacing: .05em; }
.princ p { color: var(--ink-2); }
@media (max-width: 860px) { .princ li { grid-template-columns: 50px minmax(0, 1fr); } .princ p { grid-column: 2; } }
.facts-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--ink); background: var(--white); margin-top: clamp(32px, 4vw, 48px); }
.facts-strip div { padding: 18px; border-right: 1px solid var(--line); }
.facts-strip div:last-child { border-right: 0; }
.facts-strip dt { font: 11px/1.3 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.facts-strip dd { margin-top: 8px; font: 620 17px/1.35 var(--font-sans); }
@media (max-width: 860px) { .facts-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); } .facts-strip div:nth-child(2) { border-right: 0; } .facts-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); } }
@media (max-width: 420px) { .facts-strip { grid-template-columns: 1fr; } .facts-strip div { border-right: 0; border-bottom: 1px solid var(--line); } }

/* contact */
.contact { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 64px); align-items: start; }
.cform { background: var(--white); border: 1px solid var(--ink); padding: clamp(20px, 2.6vw, 36px); }
.cform__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.field { display: grid; gap: 8px; margin-bottom: 20px; min-width: 0; }
.field > span, .field legend { font: 11px/1.2 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.field > span b, .field legend b { font-weight: 400; color: var(--cobalt); }
fieldset.field { border: 0; padding: 0; margin-inline: 0; }
.field input, .field select, .field textarea { width: 100%; min-height: 48px; padding: 11px 12px; border: 1px solid var(--line-strong); background: var(--paper); font: 16px/1.3 var(--font-sans); color: var(--ink); border-radius: 0; transition: border-color .25s, box-shadow .25s, background-color .25s; }
.field select { appearance: none; -webkit-appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 36px; }
.field textarea { min-height: 160px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--cobalt); box-shadow: 0 0 0 3px rgba(36, 67, 255, .18); background-color: var(--white); }
.cform__note { margin-top: 16px; font-size: 14px; color: var(--muted); max-width: 60ch; }
.form-status { margin-top: 16px; padding: 12px 14px; border-left: 3px solid var(--cobalt); background: var(--paper); font-size: 15px; }
.cside { display: grid; gap: 24px; }
.mailbox { border: 1px solid var(--ink); background: var(--dark); color: var(--paper); }
.mailbox__head { display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--dark-line); font: 11px/1.3 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--dark-muted); }
.mailbox__head b { font-weight: 400; color: var(--label); }
.mailbox__body { padding: 14px; font: 12.5px/1.65 var(--font-mono); white-space: pre-wrap; overflow-wrap: anywhere; min-height: 220px; color: rgba(243, 242, 238, .88); }
.mailbox__body .k { color: var(--cobalt-light); }
.mail-big { display: inline-block; font: 500 clamp(20px, 2vw, 28px)/1.2 var(--font-mono); color: var(--ink); text-decoration: none; border-bottom: 2px solid var(--cobalt); padding-bottom: 4px; overflow-wrap: anywhere; }
.mail-big:hover { color: var(--cobalt); }
.copy-btn { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 14px; border: 1px solid var(--ink); background: transparent; font: 11px/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; }
.copy-btn .ico { width: 16px; height: 16px; }
.copy-btn.is-copied { background: var(--label); }
@media (max-width: 960px) { .contact { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .cform__row { grid-template-columns: 1fr; gap: 0; } }

/* legal */
.legal { max-width: 74ch; }
.legal h2 { font: 650 clamp(22px, 2vw, 28px)/1.25 var(--font-sans); letter-spacing: -.02em; margin: 2em 0 .6em; }
.legal p, .legal li { color: var(--ink-2); }
.legal p + p { margin-top: .9em; }
.legal ul { padding-left: 1.2em; margin-top: .6em; }
.legal li + li { margin-top: .4em; }

/* 404 */
.lost { min-height: 100svh; padding-top: calc(var(--bar-h) + 48px); padding-bottom: 72px; display: flex; align-items: center; }
.lost__grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 72px); align-items: center; width: 100%; }
.lost__code { font: 700 clamp(96px, 16vw, 240px)/.85 var(--font-sans); letter-spacing: -.06em; margin: 24px 0 28px; }
.lost__code span { color: var(--cobalt); }
.lost__links { margin-top: 28px; display: grid; gap: 0; border-top: 1px solid var(--ink); max-width: 460px; }
.lost__links a { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.lost__links a:hover { color: var(--cobalt); }
.lost__links .ico { width: 18px; height: 18px; }
@media (max-width: 860px) { .lost__grid { grid-template-columns: 1fr; } }

/* small shared bits */
.split2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 64px); align-items: center; }
.split2--top { align-items: start; }
@media (max-width: 900px) { .split2 { grid-template-columns: 1fr; } }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip { display: inline-flex; align-items: center; gap: 6px; min-height: 28px; padding: 0 10px; border: 1px solid var(--line-strong); font: 11px/1 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; background: var(--paper); }
.dark .chip { background: transparent; border-color: var(--dark-line-strong); }
.callout { border: 1px solid var(--ink); background: var(--white); padding: 18px 20px; }
.callout--yellow { background: var(--label); }
.dark .callout { background: var(--dark-2); border-color: var(--dark-line-strong); }

.sheet--index .sheet__row { grid-template-columns: minmax(0, 1fr) auto; padding: 14px 18px; text-decoration: none; transition: background-color .3s, color .3s; }
.sheet--index .sheet__row:hover { background: var(--ink); color: var(--paper); }
.sheet--index .sheet__row:hover .ico { color: var(--label); }
.sheet__code { font: 11px/1 var(--font-mono); letter-spacing: .05em; color: var(--muted); }
.sheet--index .sheet__row:hover .sheet__code { color: var(--label); }
@media (max-width: 860px) { .sheet--index .sheet__row { grid-template-columns: minmax(0, 1fr) auto; } }

.plist { border-top: 1px solid var(--ink); }
.plist li { border-bottom: 1px solid var(--line-strong); }
.plist a { display: grid; grid-template-columns: 56px minmax(0, 1fr) auto 20px; gap: 12px; align-items: baseline; padding: 14px 0; text-decoration: none; transition: color .3s, padding .45s var(--ease); }
.plist a:hover { color: var(--cobalt); padding-left: 8px; }
.plist__no { font: 11px/1 var(--font-mono); color: var(--cobalt); letter-spacing: .05em; }
.plist__name { font: 620 18px/1.3 var(--font-sans); letter-spacing: -.01em; }
.plist__dur { font: 11px/1 var(--font-mono); color: var(--muted); letter-spacing: .04em; text-transform: uppercase; }
.plist .ico { width: 16px; height: 16px; align-self: center; }
@media (max-width: 480px) { .plist__dur { display: none; } .plist a { grid-template-columns: 48px minmax(0, 1fr) 18px; } }
.board-wrap { margin-top: 8px; }

.scoper__out .btn--ghost { --fg: var(--paper); --bd: var(--dark-line-strong); }
.scoper__out .btn--ghost:hover { --bg: var(--paper); --fg: var(--ink); --bd: var(--paper); }
.scoper__out .btn::before { --h: var(--cobalt-light); }
.scoper__out :focus-visible { outline-color: var(--cobalt-light); }
.bar__loc { flex: 0 1 auto; }
.bar__loc-path { flex: none; }
.bar__loc-exp { flex: 0 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 22ch; }
.board__controls { flex-wrap: wrap; }
.board__controls .btn { white-space: nowrap; }
@media (max-width: 600px) { .board__controls .note { flex-basis: 100%; margin-left: 0; } }
.btn { white-space: nowrap; }
@media (max-width: 420px) { .btn { white-space: normal; text-align: center; } }