/* ————————————————————————————————————————————————
   Kevin Bolčič — personal site
   Concept: the page is a sheet of material on the laser bed.
   Cut (red) = design & build · Engrave (blue) = systems ·
   Score (green) = AI & automation. Toolpath motion everywhere.
   ———————————————————————————————————————————————— */

:root {
  /* material */
  --paper:      oklch(95.5% 0.012 85);
  --paper-deep: oklch(92.5% 0.016 82);
  --ink:        oklch(26% 0.015 60);
  --ink-soft:   oklch(42% 0.014 60);
  --ink-faint:  oklch(49% 0.012 70); /* 4.5:1+ on paper; never use --scr for text */
  --hairline:   oklch(83% 0.014 78);

  /* laser semantics */
  --cut:  oklch(56% 0.20 31);
  --eng:  oklch(47% 0.13 255);
  --scr:  oklch(56% 0.13 150);
  --cut-tint: oklch(93% 0.028 35);
  --eng-tint: oklch(93% 0.022 250);
  --scr-tint: oklch(93.5% 0.026 150);

  --font-d: "Archivo", "Helvetica Neue", sans-serif;
  --font-b: "Instrument Sans", "Helvetica Neue", sans-serif;
  --font-m: "IBM Plex Mono", ui-monospace, monospace;

  --ease: cubic-bezier(0.16, 1, 0.3, 1); /* out-expo-ish */
  --pad: clamp(1.25rem, 4vw, 4rem);
  --w: 74rem;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }

body {
  font-family: var(--font-b);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--cut); color: var(--paper); }

.skip {
  position: absolute; left: -200vw; top: 0;
  background: var(--ink); color: var(--paper);
  padding: 0.6rem 1rem; z-index: 99; font-family: var(--font-m);
}
.skip:focus { left: 0; }

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }

/* ——— the sheet: registration marks (fixed) + document-space fx layer ——— */
.sheet { position: fixed; inset: 0; z-index: -1; color: var(--ink); }
body { position: relative; }
#fx {
  position: absolute; z-index: -1;
  pointer-events: none;
  color: var(--ink);
}
.sheet-marks { position: absolute; inset: 0; opacity: 0.045; }
.reg {
  position: fixed; width: 22px; height: 22px; opacity: 0.35;
}
.reg::before, .reg::after {
  content: ""; position: absolute; background: var(--ink);
}
.reg::before { width: 100%; height: 1.5px; top: 50%; }
.reg::after  { height: 100%; width: 1.5px; left: 50%; }
.reg-tl { top: 10px; left: 10px; }
.reg-tr { top: 10px; right: 10px; }
.reg-bl { bottom: 10px; left: 10px; }
.reg-br { bottom: 10px; right: 10px; }

/* ——— background: mouse parallax + ambient life (grid drift, scan band) ——— */
#fx { inset: -48px; will-change: transform; }
#fx .sheet-marks { animation: griddrift 80s linear infinite alternate; }
@keyframes griddrift { to { transform: translate(-48px, -48px); } }
.sheet-scan {
  position: absolute; left: 0; right: 0; top: 0; height: 16vh;
  background: linear-gradient(180deg, transparent,
    color-mix(in oklab, var(--cut) 6%, transparent) 50%, transparent);
  animation: scan 12s ease-in-out infinite;
  pointer-events: none;
}
@keyframes scan {
  0% { transform: translateY(-18vh); opacity: 0; }
  8% { opacity: 1; }
  60% { transform: translateY(102vh); opacity: 1; }
  68%, 100% { transform: translateY(102vh); opacity: 0; }
}
@media (max-width: 60rem) { .cutbar { display: none; } }
@media (pointer: coarse) { .cutbar { display: none; } }

/* ——— cut progress (scroll) ——— */
.cutbar {
  position: fixed; left: 14px; top: 50%; transform: translateY(-50%);
  height: 38vh; width: 2px; background: var(--hairline); z-index: 40;
  pointer-events: none;
}
.cutbar-fill {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%;
  background: var(--cut);
  transform: scaleY(0); transform-origin: top;
}
.cutbar-read {
  position: absolute; left: 8px; bottom: -1.6rem;
  font-family: var(--font-m); font-size: 0.62rem; letter-spacing: 0.06em;
  color: var(--ink-faint); writing-mode: vertical-rl;
}

/* ——— header ——— */
.bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; gap: 2rem;
  padding: 0.85rem var(--pad);
  background: color-mix(in oklab, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease);
}
.bar.scrolled { border-bottom-color: var(--hairline); }

.mark {
  display: flex; align-items: center; gap: 0.65rem;
  color: var(--ink); text-decoration: none;
}
.mark-txt {
  font-family: var(--font-d); font-weight: 600; font-size: 1.02rem;
  letter-spacing: -0.01em;
}

.bar-nav { display: flex; gap: 1.6rem; margin-left: auto; }
.bar-nav a {
  color: var(--ink-soft); text-decoration: none;
  font-size: 0.92rem; font-weight: 500;
  position: relative; padding: 0.2rem 0;
}
.bar-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1.5px; background: var(--cut);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.bar-nav a:hover { color: var(--ink); }
.bar-nav a:hover::after, .bar-nav a[aria-current]::after { transform: scaleX(1); }

/* ——— buttons ——— */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-d); font-weight: 600; font-size: 1rem;
  color: var(--paper); background: var(--ink);
  text-decoration: none; padding: 0.85rem 1.6rem;
  border: 1.5px solid var(--ink);
  position: relative; overflow: hidden;
  transition: color 0.3s var(--ease);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--cut);
  transform: translateX(-101%);
  transition: transform 0.4s var(--ease);
}
.btn:hover::before, .btn:focus-visible::before { transform: translateX(0); }
.btn { z-index: 0; }
.btn:hover, .btn:focus-visible { color: var(--paper); border-color: var(--cut); }

.btn-ghost {
  background: transparent; color: var(--ink);
}
.btn-ghost::before { background: var(--ink); }
.btn-ghost:hover, .btn-ghost:focus-visible { color: var(--paper); border-color: var(--ink); }

.btn-sm { padding: 0.5rem 1.05rem; font-size: 0.88rem; flex-shrink: 0; }
.cta-short { display: none; }

/* ——— hero ——— */
.hero {
  min-height: 88vh;
  min-height: 88svh;
  display: flex; flex-direction: column; justify-content: center;
  max-width: var(--w); margin: 0 auto;
  padding: 7.5rem var(--pad) 3rem;
}
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem); align-items: center;
}
.hero-txt { min-width: 0; }
@media (pointer: fine) { .hero-txt, .hero-mark { will-change: transform; } }
.hero-mark { display: flex; justify-content: center; }
.kbmark { width: min(100%, 24rem); height: auto; overflow: visible; }
.kb-guide {
  fill: none; stroke: var(--hairline); stroke-width: 1.5;
  stroke-dasharray: 5 9;
  transform-origin: 368px 368px;
  animation: orbit 70s linear infinite;
}
@keyframes orbit { to { transform: rotate(360deg); } }
.anim-paused .kb-guide { animation-play-state: paused; }
.kb-ring {
  fill: none; stroke: var(--cut); stroke-width: 9;
  stroke-dasharray: 100; stroke-dashoffset: 100;
  transform: rotate(-90deg); transform-origin: 368px 368px;
  animation: ringdraw 1.4s var(--ease) 0.35s forwards;
}
@keyframes ringdraw { to { stroke-dashoffset: 0; } }
.kb-glyph {
  fill: var(--cut); fill-opacity: 0;
  stroke: var(--cut); stroke-width: 80;
  stroke-dasharray: 100; stroke-dashoffset: 100;
  animation: glyphdraw 1.1s var(--ease) 1.2s forwards, glyphfill 0.5s ease 2s forwards;
}
@keyframes glyphdraw { to { stroke-dashoffset: 0; } }
@keyframes glyphfill { to { fill-opacity: 1; } }
.kb-spark { fill: var(--cut); opacity: 0; animation: sparkon 0.3s ease 2.3s forwards; }
@keyframes sparkon { to { opacity: 0.9; } }

.eyebrow {
  font-family: var(--font-m); font-size: 0.8rem; letter-spacing: 0.04em;
  color: var(--ink-soft); text-transform: uppercase;
  display: flex; align-items: center; gap: 0.55rem; flex-wrap: wrap;
}
.eyebrow .sep { color: var(--ink-faint); }
.dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--scr);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.name {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: clamp(3.2rem, 12.5vw, 9.5rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin: 1.6rem 0 2rem;
  position: relative;
  width: fit-content;
  max-width: 100%;
}

/* laser-cut reveal: text wipes in behind a traveling head */
.name .w { display: inline-block; overflow: hidden; vertical-align: top; }
.name .w > span {
  display: inline-block;
  transform: translateY(110%);
  animation: rise 0.9s var(--ease) forwards;
}
.name .w:nth-child(2) > span { animation-delay: 0.12s; }
@keyframes rise { to { transform: translateY(0); } }

.name::after { /* the cut line under the name */
  content: ""; position: absolute; left: 0; bottom: -0.18em;
  height: 3px; width: 100%;
  background: var(--cut);
  transform: scaleX(0); transform-origin: left;
  animation: cutline 1.1s var(--ease) 1.75s forwards;
}
@keyframes cutline { to { transform: scaleX(1); } }

.lede { max-width: 34em; }
.lede p {
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.5; color: var(--ink-soft);
  text-wrap: balance;
}

.hero-cta { display: flex; gap: 0.9rem; margin-top: 2.4rem; flex-wrap: wrap; }

.legend {
  list-style: none; display: flex; gap: 1.8rem; flex-wrap: wrap;
  margin-top: clamp(3.5rem, 11vh, 6.5rem);
  font-family: var(--font-m); font-size: 0.78rem; color: var(--ink-soft);
}
.legend li { display: flex; align-items: center; gap: 0.5rem; }
.legend b { font-weight: 500; color: var(--ink); }
.ln { width: 26px; height: 0; border-top: 2px solid; display: inline-block; }
.ln-cut { border-color: var(--cut); }
.ln-eng { border-color: var(--eng); border-top-style: dashed; }
.ln-scr { border-color: var(--scr); border-top-style: dotted; }

/* ——— bands (sections) ——— */
.band {
  max-width: var(--w); margin: 0 auto;
  padding: clamp(4rem, 9vw, 7.5rem) var(--pad) 0;
}
.band-end { padding-bottom: clamp(4rem, 8vw, 6rem); }
.band-end .band-head h2 {
  font-size: clamp(2.6rem, 6.5vw, 4.8rem);
  position: relative; width: fit-content; padding-bottom: 0.12em;
}
.band-end .band-head h2::after { /* the sheet gets cut at the end */
  content: ""; position: absolute; left: 0; bottom: 0;
  height: 3px; width: 100%; background: var(--cut);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.9s var(--ease) 0.25s;
}
.band-end .band-head.in h2::after { transform: scaleX(1); }

.band-head {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 1.4rem; row-gap: 0.8rem;
  align-items: baseline;
  position: relative;
  padding-top: 1.1rem;
  margin-bottom: clamp(2.2rem, 5vw, 3.8rem);
}
.band-head::before { /* rule cuts across on reveal */
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 1.5px; background: var(--ink);
  transform: scaleX(0); transform-origin: left;
  transition: transform 1s var(--ease) 0.1s;
}
.band-head.in::before, .no-io .band-head::before { transform: scaleX(1); }
.idx {
  font-family: var(--font-m); font-size: 0.85rem; color: var(--ink-faint);
}
.band-head h2 {
  font-family: var(--font-d); font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: -0.025em; line-height: 1.02;
}
.band-sub {
  grid-column: 2; max-width: 44em; color: var(--ink-soft);
  font-size: 1.05rem; text-wrap: pretty;
}

/* ——— reveal on scroll ——— */
.rv { opacity: 0; transform: translateY(26px); }
.in .rv, .rv.in {
  opacity: 1; transform: none;
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

/* ——— services: parts on the sheet ——— */
.parts {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.1rem;
}
.part {
  grid-column: span 4;
  position: relative;
  padding: 1.7rem 1.6rem 1.6rem;
  background: var(--paper);
  outline-offset: -0.75px;
  transition: outline-color 0.4s var(--ease), background 0.4s var(--ease);
}
/* resting toolpath outlines: solid=cut, dashed=engrave, dotted=score */
.part[data-line="cut"] { outline: 1.5px solid  color-mix(in oklab, var(--cut) 50%, var(--hairline)); }
.part[data-line="eng"] { outline: 1.5px dashed color-mix(in oklab, var(--eng) 50%, var(--hairline)); }
.part[data-line="scr"] { outline: 2px   dotted color-mix(in oklab, var(--scr) 55%, var(--hairline)); }
.part-lg   { grid-column: span 8; }
.part-wide { grid-column: span 8; }

.part[data-line="cut"]:hover { outline-color: var(--cut); background: var(--cut-tint); }
.part[data-line="eng"]:hover { outline-color: var(--eng); background: var(--eng-tint); }
.part[data-line="scr"]:hover { outline-color: var(--scr); background: var(--scr-tint); }

.part-no {
  font-family: var(--font-m); font-size: 0.78rem; color: var(--ink-faint);
  position: absolute; top: 1.35rem; right: 1.4rem;
}
.part h3 {
  font-family: var(--font-d); font-weight: 600;
  font-size: clamp(1.25rem, 2vw, 1.6rem); letter-spacing: -0.015em;
  margin-bottom: 0.7rem; max-width: 90%;
}
.part p { color: var(--ink-soft); max-width: 58ch; }

.tags {
  list-style: none; display: flex; flex-wrap: wrap; gap: 0.45rem;
  margin-top: 1.2rem;
}
.tags li {
  font-family: var(--font-m); font-size: 0.72rem;
  padding: 0.28rem 0.6rem;
  border: 1px solid var(--hairline);
  color: var(--ink-soft);
  border-radius: 2px;
}

/* ——— work: job list rows ——— */
.work { list-style: none; counter-reset: job; }
.row {
  display: grid;
  grid-template-columns: 3.2rem 1.6fr 1fr auto;
  gap: 1.4rem; align-items: baseline;
  padding: 1.7rem 0.4rem;
  border-bottom: 1px solid var(--hairline);
  position: relative;
  transition: background 0.35s var(--ease), padding-left 0.35s var(--ease);
}
.work .row:first-child { border-top: 1px solid var(--hairline); }

.row { padding-left: 1.2rem; }
.row::before { /* resting toolpath edge; brightens on hover */
  content: ""; position: absolute; left: 0; top: -1px; bottom: -1px;
  width: 3px; opacity: 0.45;
  transition: opacity 0.35s var(--ease);
}
.row[data-line="cut"]::before { background: var(--cut); }
.row[data-line="eng"]::before { background: repeating-linear-gradient(180deg, var(--eng) 0 7px, transparent 7px 13px); }
.row[data-line="scr"]::before { background: repeating-linear-gradient(180deg, var(--scr) 0 3px, transparent 3px 9px); }
.row:hover::before { opacity: 1; }

.row-no { font-family: var(--font-m); font-size: 0.8rem; color: var(--ink-faint); }
.row-main h3 {
  font-family: var(--font-d); font-weight: 600;
  font-size: clamp(1.3rem, 2.4vw, 1.8rem); letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}
.row-main p { color: var(--ink-soft); max-width: 52ch; font-size: 0.98rem; }

.row-meta {
  display: flex; flex-direction: column; gap: 0.2rem;
  font-family: var(--font-m); font-size: 0.75rem; color: var(--ink-soft);
}

.row-link {
  font-family: var(--font-m); font-size: 0.85rem;
  color: var(--ink); text-decoration: none;
  display: inline-flex; align-items: center; gap: 0.35rem;
  border-bottom: 1.5px solid var(--ink);
  padding: 0.5rem 0.2rem 0.1rem;
  margin: -0.5rem -0.2rem 0;
  white-space: nowrap;
}
.row-link .arw { transition: transform 0.3s var(--ease); display: inline-block; }
.row-link:hover .arw { transform: translate(3px, -3px); }
.row-link-off { border-bottom: none; color: var(--ink-faint); }
.row-soon .row-main h3 { color: var(--ink-soft); }

/* ——— logo wall ——— */
.wall { margin-top: clamp(3rem, 6vw, 5rem); }
.wall-head { max-width: 40em; margin-bottom: 1.6rem; }
.wall-head h3 {
  font-family: var(--font-d); font-weight: 600;
  font-size: clamp(1.3rem, 2.4vw, 1.8rem); letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}
.wall-head p { color: var(--ink-soft); font-size: 0.98rem; }
.logowall {
  list-style: none;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem;
}
.logowall li { perspective: 700px; }
.tile {
  width: 100%; height: 100%;
  background: oklch(98.5% 0.005 85); /* mounted specimen card */
  border: 1px solid var(--hairline);
  padding: 1.6rem 1.4rem 0.9rem;
  display: flex; flex-direction: column; align-items: center; gap: 0.9rem;
  cursor: pointer; font: inherit; color: inherit; text-decoration: none;
  transition: border-color 0.35s var(--ease), transform 0.25s ease-out, box-shadow 0.35s var(--ease);
}
.tile:hover, .tile:focus-visible { border-color: var(--ink); }
.tile img {
  max-width: 100%; height: 96px; object-fit: contain;
  margin: auto 0;
}
.tile span {
  font-family: var(--font-m); font-size: 0.72rem; color: var(--ink-faint);
  border-top: 1px solid var(--hairline);
  width: 100%; text-align: center; padding-top: 0.6rem;
}

.wall-hint {
  font-family: var(--font-m); font-size: 0.72rem; color: var(--ink-faint);
  margin-top: 0.8rem;
}
/* ——— work row case-study links ——— */
.row-toggle {
  grid-column: 4; justify-self: end;
  font-family: var(--font-m); font-size: 0.75rem;
  border: 1px solid var(--hairline); color: var(--ink-soft);
  padding: 0.35rem 0.7rem; text-decoration: none;
  display: inline-flex; align-items: center; gap: 0.35rem;
  transition: border-color 0.3s, color 0.3s;
  margin-top: 0.6rem;
}
.row-toggle:hover, .row-toggle:focus-visible { border-color: var(--ink); color: var(--ink); }
.row-toggle .arw { transition: transform 0.3s var(--ease); }
.row-toggle:hover .arw { transform: translate(2px, -2px); }

/* ——— AI band ——— */
.band-ai .band-head::before { background: var(--scr); }

.flow {
  margin-bottom: clamp(2rem, 5vw, 3.4rem);
  background: var(--paper-deep);
  border: 1px solid var(--hairline);
  padding: 1.2rem 1rem 0.8rem;
  overflow-x: auto;
}
.flow:focus-visible { outline: 2px solid var(--scr); outline-offset: 2px; }
.flow-svg { width: 100%; min-width: 760px; height: auto; display: block; }
.flow-track {
  stroke: var(--hairline); stroke-width: 1.5;
}
.flow-live {
  stroke: var(--scr); stroke-width: 1.5;
  stroke-dasharray: 7 9;
  animation: crawl 1.4s linear infinite;
}
@keyframes crawl { to { stroke-dashoffset: -16; } }
.anim-paused .flow-live { animation-play-state: paused; }
.flow-head { fill: var(--scr); }
.flow-nodes rect {
  fill: var(--paper); stroke: var(--ink); stroke-width: 1.3;
}
.flow-nodes text {
  font-family: var(--font-m); font-size: 14px; fill: var(--ink);
  text-anchor: middle;
}
.node-human rect { fill: var(--ink); }
.node-human text { fill: var(--paper); }
.flow-cap {
  font-family: var(--font-m); font-size: 0.75rem; color: var(--ink-soft);
  padding: 0.7rem 0.2rem 0.2rem;
}

.ai-cols {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.4rem;
}
.ai-cols h3 {
  font-family: var(--font-d); font-weight: 600; font-size: 1.15rem;
  letter-spacing: -0.01em; margin-bottom: 0.6rem;
  padding-top: 0.9rem;
  border-top: 2px dotted var(--scr);
}
.ai-cols p { color: var(--ink-soft); font-size: 0.98rem; }

/* ——— about ——— */
.about {
  display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}
.about-txt .big {
  font-family: var(--font-d); font-weight: 600;
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  line-height: 1.25; letter-spacing: -0.02em;
  margin-bottom: 1.4rem; text-wrap: balance;
}
.about-txt p + p { margin-top: 1rem; }
.about-txt p:not(.big) { color: var(--ink-soft); max-width: 60ch; }

.spec { border-top: 1.5px solid var(--ink); }
.spec > div {
  display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem;
  padding: 0.85rem 0.2rem;
  border-bottom: 1px solid var(--hairline);
}
.spec dt {
  font-family: var(--font-m); font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--ink-faint);
  padding-top: 0.15rem;
}
.spec dd { font-size: 0.95rem; }
.spec dd a { color: var(--ink); text-decoration-color: var(--hairline); text-underline-offset: 3px; padding: 0.5rem 0.1rem; margin: -0.5rem -0.1rem; }
.spec dd a:hover { text-decoration-color: var(--cut); }

/* ——— contact ——— */
.contact {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}
.mailto {
  display: block; text-decoration: none; color: var(--ink);
  border: 1.5px solid var(--ink);
  padding: 2rem 2.2rem 2.2rem;
  position: relative; overflow: hidden; z-index: 0;
}
.mailto::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--cut);
  transform: translateY(101%);
  transition: transform 0.45s var(--ease);
}
.mailto:hover::before, .mailto:focus-visible::before { transform: translateY(0); }
.mailto:hover, .mailto:focus-visible { color: var(--paper); }
.mailto-lbl {
  display: block; font-family: var(--font-m); font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 0.8rem;
  opacity: 0.75;
}
.mailto-addr {
  font-family: var(--font-d); font-weight: 600;
  font-size: clamp(1.3rem, 3vw, 2rem); letter-spacing: -0.02em;
  word-break: break-all;
}

/* ——— footer ——— */
.foot {
  max-width: var(--w); margin: 0 auto;
  padding: 2rem var(--pad) 2.6rem;
  border-top: 1px solid var(--hairline);
  display: flex; gap: 1.5rem; flex-wrap: wrap; justify-content: space-between;
  font-family: var(--font-m); font-size: 0.78rem; color: var(--ink-soft);
}
.foot a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--hairline); padding: 0.5rem 0.1rem; margin: -0.5rem -0.1rem; }
.foot a:hover { border-color: var(--cut); }
.foot-links { display: flex; gap: 1.1rem; flex-wrap: wrap; }

/* ——— responsive ——— */
@media (max-width: 60rem) {
  .parts { grid-template-columns: 1fr 1fr; }
  .part { grid-column: span 1; }
  .part-lg, .part-wide { grid-column: span 2; }
  .row { grid-template-columns: 2.4rem 1fr; row-gap: 0.9rem; }
  .row-meta { grid-column: 2; flex-direction: row; gap: 1.2rem; flex-wrap: wrap; }
  .row-link { grid-column: 2; justify-self: start; }
  .row-toggle { grid-column: 2; justify-self: start; margin-top: 0; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mark { order: -1; }
  .kbmark { width: min(46vw, 13rem); }
  .ai-cols { grid-template-columns: 1fr; gap: 1.8rem; }
  .logowall { grid-template-columns: repeat(2, 1fr); }
  .about, .contact { grid-template-columns: 1fr; }
}
@media (max-width: 44rem) {
  .bar { gap: 0.9rem; padding-left: 1rem; padding-right: 1rem; }
  .mark-txt { display: none; }
  .bar-nav { gap: 0.9rem; margin-left: 0; flex: 1; justify-content: center; }
  .bar-nav a { font-size: 0.85rem; }
  .btn-sm { white-space: nowrap; padding: 0.45rem 0.75rem; font-size: 0.82rem; }
  .cta-full { display: none; }
  .cta-short { display: inline; }
  .parts { grid-template-columns: 1fr; }
  .part, .part-lg, .part-wide { grid-column: span 1; }
  .hero { min-height: 84vh; min-height: 84svh; }
  .legend { gap: 1rem 1.4rem; }
}

@media (max-width: 21rem) {
  .mark { display: none; } /* tiny screens: section nav beats the monogram */
  .bar-nav { justify-content: flex-start; }
}




/* ——— pinned horizontal wall: full-bleed marks as part of the sheet (html.hs) ——— */
.hs .wallpin { height: 280vh; }
.hs .wallpin-sticky {
  position: sticky; top: 4.5rem;
  height: calc(100vh - 4.5rem);
  display: flex; flex-direction: column; justify-content: center;
  overflow: hidden;
}
.hs .logowall {
  display: flex; align-items: center;
  gap: clamp(3rem, 8vw, 7rem); width: max-content;
  padding: 0 8vw;
  will-change: transform;
}
.hs .logowall li { width: min(50rem, 60vw); flex-shrink: 0; perspective: none; }
.hs .tile {
  border: 0; background: transparent; box-shadow: none;
  padding: 0; gap: 1.6rem; align-items: stretch;
}
.hs .tile:hover { border: 0; }
.hs .tile:focus-visible { border: 0; outline: 2px solid var(--cut); outline-offset: 8px; }
.hs .tile img { height: min(46vh, 26rem); mix-blend-mode: multiply; }
.hs .tile span {
  font-size: 0.88rem; letter-spacing: 0.18em; text-transform: uppercase;
  text-align: left; padding-top: 0.9rem;
  border-top: 1.5px solid var(--ink); color: var(--ink-soft);
}

/* ——— contact form ——— */
.cform { display: grid; gap: 1rem; align-content: start; }
.cform label {
  display: grid; gap: 0.4rem;
  font-family: var(--font-m); font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-faint);
}
.cform input, .cform textarea {
  font-family: var(--font-b); font-size: 1rem; color: var(--ink);
  background: oklch(98.5% 0.005 85);
  border: 1px solid var(--hairline); border-radius: 0;
  padding: 0.7rem 0.85rem;
}
.cform input:focus-visible, .cform textarea:focus-visible {
  outline: 2px solid var(--cut); outline-offset: -1px; border-color: var(--cut);
}
.cform textarea { resize: vertical; min-height: 8rem; }
.cform .btn { justify-self: start; cursor: pointer; }
.hpot { position: absolute; left: -200vw; }
.contact-side { display: grid; gap: 1.6rem; align-content: start; }

a.plate { text-decoration: none; color: inherit; transition: border-color 0.35s var(--ease); }
a.plate:hover, a.plate:focus-visible { border-color: var(--ink); }

/* ——— study pages (logos.html / web.html) ——— */
.pagehead {
  max-width: var(--w); margin: 0 auto;
  padding: 8rem var(--pad) 0;
}
.crumb {
  font-family: var(--font-m); font-size: 0.78rem; color: var(--ink-faint);
  display: flex; gap: 0.7rem; align-items: center; flex-wrap: wrap;
}
.crumb a {
  color: var(--ink-soft); text-decoration: none;
  border-bottom: 1px solid var(--hairline); padding: 0.4rem 0.1rem 0.05rem; margin: -0.4rem -0.1rem 0;
}
.crumb a:hover { color: var(--ink); border-color: var(--cut); }
.pagehead h1 {
  font-family: var(--font-d); font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  letter-spacing: -0.03em; line-height: 1.02;
  margin: 1.1rem 0 1.2rem;
}
.pagehead .lede-s {
  color: var(--ink-soft); max-width: 46em;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem); text-wrap: pretty;
}

.studies {
  max-width: var(--w); margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--pad) clamp(3rem, 7vw, 5rem);
}
.study {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(1.6rem, 4vw, 3.6rem);
  padding: clamp(2.6rem, 6vw, 4.2rem) 0;
  border-top: 1px solid var(--hairline);
  scroll-margin-top: 5.5rem;
}
.plate {
  background: oklch(98.5% 0.005 85);
  border: 1px solid var(--hairline);
  padding: clamp(1.4rem, 3vw, 2.6rem);
  padding-bottom: 2.8rem;
  display: flex; align-items: center; justify-content: center;
  position: relative; align-self: start;
}
.plate img { max-width: 100%; height: auto; max-height: 380px; object-fit: contain; }
.plate-cap {
  position: absolute; bottom: 0.6rem; left: 1rem; right: 1rem;
  font-family: var(--font-m); font-size: 0.68rem; letter-spacing: 0.05em;
  color: var(--ink-faint); text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.plate-shot { padding: 0; display: block; }
.plate-shot img { display: block; width: 100%; max-height: none; }
.plate-shot .plate-cap {
  position: static; display: block;
  padding: 0.6rem 0.9rem; border-top: 1px solid var(--hairline);
  text-align: left;
}
.study-kicker {
  font-family: var(--font-m); font-size: 0.75rem; letter-spacing: 0.05em;
  color: var(--ink-faint); text-transform: uppercase; margin-bottom: 0.5rem;
}
.study h2 {
  font-family: var(--font-d); font-weight: 700;
  font-size: clamp(1.7rem, 3.6vw, 2.6rem); letter-spacing: -0.025em;
  margin-bottom: 0.9rem;
}
.study-body p { color: var(--ink-soft); max-width: 62ch; }
.study-body p + p { margin-top: 0.85rem; }
.study-body b { color: var(--ink); font-weight: 600; }
.study-link {
  font-family: var(--font-m); font-size: 0.85rem;
  color: var(--ink); text-decoration: none;
  display: inline-flex; align-items: center; gap: 0.35rem;
  border-bottom: 1.5px solid var(--ink);
  padding: 0.5rem 0.2rem 0.1rem; margin-top: 0.9rem;
}
.study-link .arw { transition: transform 0.3s var(--ease); }
.study-link:hover .arw { transform: translate(3px, -3px); }

.ai-an {
  margin-top: 1.7rem;
  border: 2px dotted color-mix(in oklab, var(--scr) 55%, var(--hairline));
  background: color-mix(in oklab, var(--scr-tint) 38%, var(--paper));
  padding: 1.15rem 1.3rem 0.4rem;
}
.ai-an-head {
  display: flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-m); font-size: 0.72rem; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--ink-soft);
  margin-bottom: 0.8rem;
}
.ai-an dl > div {
  display: grid; grid-template-columns: 7.2rem 1fr; gap: 0.9rem;
  padding: 0.55rem 0;
  border-top: 1px solid var(--hairline);
}
.ai-an dt {
  font-family: var(--font-m); font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--ink-faint); padding-top: 0.25rem;
}
.ai-an dd { font-size: 0.92rem; color: var(--ink-soft); }
.ai-an dd b { color: var(--ink); font-weight: 600; }

.blueprint { width: 100%; max-width: 26rem; height: auto; }
.blueprint rect, .blueprint line { stroke: var(--eng); fill: none; stroke-width: 1.5; stroke-dasharray: 6 6; }
.blueprint text { font-family: var(--font-m); font-size: 11px; fill: var(--ink-faint); }

@media (max-width: 60rem) {
  .study { grid-template-columns: 1fr; }
  .plate { max-width: 30rem; }
}
@media (max-width: 44rem) {
  .ai-an dl > div { grid-template-columns: 1fr; gap: 0.15rem; }
  .ai-an dt { padding-top: 0; }
}


/* ——— AI assistant widget ——— */
.chat { position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 60; }
.chat-fab {
  width: 3.4rem; height: 3.4rem; border-radius: 50%;
  background: var(--ink); color: var(--paper);
  border: 1.5px solid var(--ink); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  transition: transform 0.25s var(--ease), background 0.25s;
}
.chat-fab:hover, .chat-fab:focus-visible { transform: scale(1.07); background: var(--cut); border-color: var(--cut); }
.chat-box[hidden] { display: none; }
.chat-box {
  position: absolute; right: 0; bottom: 4.4rem;
  width: min(92vw, 23rem);
  background: var(--paper);
  border: 1.5px solid var(--ink);
  box-shadow: 0 18px 50px rgba(0,0,0,0.22);
  display: flex; flex-direction: column;
}
.chat-head {
  display: flex; align-items: center; gap: 0.55rem;
  padding: 0.75rem 0.9rem;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-m); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.08em;
}
.chat-head .dot { background: var(--scr); }
.chat-head b { font-weight: 500; }
.chat-x {
  margin-left: auto; background: none; border: 0; cursor: pointer;
  font-size: 1.3rem; line-height: 1; color: var(--ink-soft); padding: 0.2rem 0.4rem;
}
.chat-x:hover { color: var(--cut); }
.chat-log {
  padding: 0.9rem; display: flex; flex-direction: column; gap: 0.6rem;
  height: min(50vh, 22rem); overflow-y: auto;
  overscroll-behavior: contain;
}
.msg {
  max-width: 88%; padding: 0.55rem 0.8rem;
  font-size: 0.92rem; line-height: 1.5; white-space: pre-wrap;
}
.msg.bot { background: var(--scr-tint); border: 1px solid color-mix(in oklab, var(--scr) 30%, var(--hairline)); align-self: flex-start; }
.msg.me  { background: var(--cut-tint); border: 1px solid color-mix(in oklab, var(--cut) 30%, var(--hairline)); align-self: flex-end; }
.msg.thinking { color: var(--ink-faint); font-family: var(--font-m); font-size: 0.8rem; }
.chat-chips {
  display: flex; flex-wrap: wrap; gap: 0.45rem;
  padding: 0.7rem 0.9rem 0.9rem;
  border-top: 1px solid var(--hairline);
}
.chat-chips[hidden] { display: none; }
.chip {
  font-family: var(--font-m); font-size: 0.72rem;
  background: none; border: 1px solid var(--hairline); color: var(--ink-soft);
  padding: 0.4rem 0.7rem; cursor: pointer;
  transition: border-color 0.25s, color 0.25s;
}
.chip:hover, .chip:focus-visible { border-color: var(--ink); color: var(--ink); }
.chip-ai { border-style: dashed; border-color: color-mix(in oklab, var(--scr) 55%, var(--hairline)); }
.chat-form[hidden] { display: none; }
.chat-form { display: flex; gap: 0.5rem; padding: 0.7rem; border-top: 1px solid var(--hairline); }
.chat-form input {
  flex: 1; min-width: 0; font-family: var(--font-b); font-size: 0.95rem; color: var(--ink);
  background: oklch(98.5% 0.005 85); border: 1px solid var(--hairline); border-radius: 0;
  padding: 0.55rem 0.7rem;
}
.chat-form input:focus-visible { outline: 2px solid var(--scr); outline-offset: -1px; }
.chat-form .btn { cursor: pointer; }
html:not(.js) .chat { display: none; }
@media print { .chat { display: none; } }

/* ——— print ——— */
@media print {
  .rv { opacity: 1 !important; transform: none !important; }
  .sheet, .bar { display: none; }
}

/* ——— reduced motion ——— */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .name .w > span { animation: none; transform: none; }
  .name::after { animation: none; transform: scaleX(1); }
  .rv { opacity: 1; transform: none; }
  .flow-live { animation: none; }
  .flow-head { display: none; }
  .dot { animation: none; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
  .kb-ring { animation: none; stroke-dashoffset: 0; }
  .kb-glyph { animation: none; stroke-dashoffset: 0; fill-opacity: 1; }
  .kb-guide, .kb-spark { animation: none; }
  .kb-spark { opacity: 0; }
  .cutbar, .sheet-scan { display: none; }
  #fx { transform: none !important; }
  #fx .sheet-marks { animation: none; }
  .band-head::before { transform: scaleX(1); transition: none; }
}