/* Creative Studio Lab — monochrome editorial theme with isometric 3D */
:root {
  --ground: #ffffff;
  --paper: #f6f6f3;
  --ink: #000000;
  --ink-dim: #555555;
  --rule: rgba(0,0,0,0.9);
  --hairline: rgba(0,0,0,0.14);
  --sans: "Roboto", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --mono: "Roboto Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --gutter: clamp(1rem, 5vw, 4.5rem);
  --navh: 4.5rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; overflow-x: clip; }
html, body { background: var(--ground); color: var(--ink); }
body { margin: 0; font-family: var(--sans); -webkit-font-smoothing: antialiased; overflow-x: clip; }
a { color: var(--ink); }
img { max-width: 100%; display: block; }
.wrap { padding-inline: var(--gutter); }
.mono { font-family: var(--mono); font-size: 0.8125rem; letter-spacing: 0.06em; color: var(--ink-dim); }
.light { font-weight: 300; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  height: var(--navh);
  border-bottom: 1px solid var(--hairline);
  font-family: var(--mono); font-size: 0.875rem; letter-spacing: 0.02em;
}
.brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--sans); font-weight: 500; font-size: 1rem; letter-spacing: -0.01em;
  text-decoration: none; white-space: nowrap;
}
.nav-links { display: flex; gap: 1.6rem; align-items: center; }
.nav-links a, .uline {
  color: inherit; text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0 1px; background-position: 0 100%; background-repeat: no-repeat;
  transition: background-size 0.3s ease;
}
.nav-links a:hover, .uline:hover, .nav-links a.active { background-size: 100% 1px; }
.nav-links .lang { color: var(--ink-dim); }
.nav-links a.btn { background-image: none; padding: 0.55rem 1.1rem; color: #fff; }
.menu-toggle { display: none; font: inherit; background: none; border: 1px solid var(--ink); border-radius: 999px; padding: 0.45rem 0.95rem; cursor: pointer; color: var(--ink); }
@media (max-width: 980px) {
  .menu-toggle { display: inline-block; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 1.1rem;
    background: #fff; padding: 1.5rem var(--gutter) 2rem; border-bottom: 1px solid var(--rule);
  }
  .nav.open .nav-links { display: flex; }
}

/* ---------- hero ---------- */
.hero { padding-block: clamp(2rem, 5vw, 4rem) clamp(1.75rem, 3.5vw, 2.75rem); }
h1 {
  margin: 0; font-weight: 500;
  font-size: clamp(2.6rem, 10.5vw, 10rem);
  line-height: 0.92; letter-spacing: -0.045em;
}
h1 .lead { white-space: nowrap; }
.tagline {
  margin: clamp(1.25rem, 3vw, 2.5rem) 0 0; max-width: 34ch;
  font-weight: 300; font-size: clamp(1.125rem, 1.9vw, 1.75rem);
  line-height: 1.35; letter-spacing: -0.005em; text-wrap: balance;
}
.hero-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 2rem; flex-wrap: wrap; }
.hero-ctas { display: flex; gap: 0.75rem; margin-top: clamp(1.25rem, 3vw, 2.25rem); flex-wrap: wrap; }
.hero-meta { font-family: var(--mono); font-size: 0.8125rem; color: var(--ink-dim); letter-spacing: 0.04em; line-height: 1.8; text-align: end; }
@media (max-width: 720px) { .hero-meta { text-align: start; } }

.btn {
  display: inline-block; cursor: pointer;
  font-family: var(--mono); font-size: 0.875rem; letter-spacing: 0.02em;
  padding: 0.8rem 1.6rem; border: 1px solid var(--ink); border-radius: 999px;
  background: var(--ink); color: var(--ground); text-decoration: none;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn:hover { opacity: 0.82; }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { opacity: 0.6; }
.btn[disabled] { opacity: 0.3; cursor: not-allowed; }

/* ---------- anatomy (isometric 3D, scroll driven) ---------- */
#anatomy { position: relative; height: 380vh; border-top: 1px solid var(--hairline); }
#anatomy .sticky { position: sticky; top: var(--navh); height: calc(100vh - var(--navh)); height: calc(100svh - var(--navh)); overflow: hidden; background: var(--paper); transition: background 0.4s; }
#anatomy .head { position: absolute; z-index: 3; top: clamp(1.5rem, 5vh, 3rem); left: var(--gutter); max-width: 30rem; pointer-events: none; }
#anatomy .head h2 { margin-bottom: 0.6rem; }
#anatomy .head p { margin: 0; font-weight: 300; color: var(--ink-dim); font-size: 1.05rem; line-height: 1.45; }
#scene { position: absolute; inset: 0; width: 100%; height: 100%; }
#scene .layer { cursor: pointer; }
#scene .lbl text { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.04em; }
#scene .lbl .t { font-family: var(--sans); font-size: 17px; font-weight: 500; letter-spacing: -0.01em; }
.cap {
  position: absolute; z-index: 3; left: var(--gutter); bottom: clamp(1.5rem, 4vh, 2.5rem);
  display: flex; align-items: center; gap: 1rem; font-family: var(--mono); font-size: 0.8125rem; color: var(--ink-dim);
}
.bars { display: flex; gap: 4px; }
.bars i { display: block; width: 18px; height: 3px; background: var(--hairline); transition: background 0.3s; }
.bars i.on { background: var(--ink); }
.card {
  position: absolute; z-index: 4; left: var(--gutter); bottom: clamp(4.5rem, 10vh, 6rem);
  width: min(22rem, calc(100% - 2 * var(--gutter)));
  background: #fff; border: 1px solid var(--rule); padding: 1.4rem 1.5rem;
  opacity: 0; transform: translateY(8px); transition: opacity 0.25s, transform 0.25s; pointer-events: none;
}
.card.show { opacity: 1; transform: none; }
.card .tag { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.06em; color: var(--ink-dim); }
.card h3 { margin: 0.9rem 0 0.4rem; font-weight: 500; font-size: 1.3rem; letter-spacing: -0.015em; }
.card p { margin: 0 0 1rem; font-weight: 300; color: var(--ink-dim); line-height: 1.45; }
.card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 0.45rem 1rem; border-top: 1px solid var(--hairline); padding-top: 0.9rem; font-family: var(--mono); font-size: 0.78rem; }
.card dt { color: var(--ink-dim); }
.card dd { margin: 0; text-align: end; }
#anatomy.dark .sticky { background: #0b0b0b; color: #fff; }
#anatomy.dark .head p, #anatomy.dark .cap { color: rgba(255,255,255,0.6); }
#anatomy.dark .bars i { background: rgba(255,255,255,0.18); }
#anatomy.dark .bars i.on { background: #fff; }
#anatomy.dark .card { background: #111; color: #fff; border-color: rgba(255,255,255,.6); }
@media (max-width: 760px) {
  #anatomy .sticky { display: flex; flex-direction: column; }
  #anatomy .head { position: static; max-width: none; padding: 1.1rem var(--gutter) 0; }
  #anatomy .head .kicker { margin-bottom: 0.5rem; }
  #anatomy .head h2 { font-size: 1.6rem; margin-bottom: 0.4rem; }
  #anatomy .head p { font-size: 0.9rem; line-height: 1.4; }
  #anatomy .head p .hint { display: none; }
  #scene { position: relative; inset: auto; flex: 1; min-height: 0; }
  #scene .lbl { display: none; }
  .card { position: static; margin: 0 var(--gutter); width: auto; min-height: 6.6rem; padding: 0.8rem 1rem; opacity: 1; transform: none; }
  .card:not(.show) { visibility: hidden; }
  .card h3 { margin-top: 0.5rem; font-size: 1.1rem; }
  .card p { margin: 0; font-size: 0.92rem; }
  .cap { position: static; padding: 0.9rem var(--gutter) 1rem; }
  #ctext { display: none; }
  .card dl { display: none; }
}

/* ---------- stats ---------- */
.stats-caption { font-family: var(--mono); font-size: 0.8125rem; letter-spacing: 0.06em; color: var(--ink-dim); padding-top: 1.4rem; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); padding-block: 1.4rem 2.2rem; gap: 2rem; border-bottom: 1px solid var(--hairline); }
.stat .num { font-weight: 500; font-size: clamp(2.2rem, 4.5vw, 3.5rem); letter-spacing: -0.03em; line-height: 1; }
.stat .label { font-family: var(--mono); font-size: 0.8125rem; color: var(--ink-dim); margin-top: 0.6rem; letter-spacing: 0.02em; }
@media (max-width: 720px) { .stats-grid { gap: 1rem; } .stat .num { font-size: 2.1rem; } .stat .label { font-size: 0.72rem; line-height: 1.4; letter-spacing: 0; } }

/* ---------- sections ---------- */
.section { padding-block: clamp(2.5rem, 5vw, 4.5rem); }
.kicker { font-family: var(--mono); font-size: 0.8125rem; letter-spacing: 0.06em; color: var(--ink-dim); margin-bottom: 1.1rem; }
h2 { margin: 0 0 1rem; font-weight: 500; font-size: clamp(1.8rem, 3.6vw, 3rem); letter-spacing: -0.03em; line-height: 1.05; text-wrap: balance; }
.section-sub { font-weight: 300; font-size: clamp(1.05rem, 1.6vw, 1.35rem); line-height: 1.4; max-width: 46ch; color: var(--ink-dim); margin: 0 0 clamp(1.5rem, 3vw, 2.5rem); }
.section-sub em { font-style: normal; color: var(--ink); font-weight: 400; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule); border-inline-start: 1px solid var(--rule); }
.feature { border-inline-end: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: clamp(1.5rem, 3vw, 2.5rem); position: relative; transition: background 0.25s; }
.feature:hover { background: var(--paper); }
.feature h3 { margin: 0 0 0.6rem; font-weight: 500; font-size: 1.35rem; letter-spacing: -0.015em; }
.feature p { margin: 0; font-weight: 300; color: var(--ink-dim); font-size: 1.05rem; line-height: 1.45; }
.feature .tag { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-dim); letter-spacing: 0.06em; display: block; }
.feature .iso { width: 150px; height: 112px; margin: 1rem 0 1rem -10px; }
.feature .iso svg { width: 100%; height: 100%; overflow: visible; }
.feature.cta { display: flex; flex-direction: column; justify-content: space-between; background: var(--ink); color: #fff; }
.feature.cta p { color: rgba(255,255,255,0.65); }
.feature.cta .btn { background: #fff; color: #000; border-color: #fff; align-self: flex-start; margin-top: 1.5rem; }
@media (max-width: 980px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .feature-grid { grid-template-columns: 1fr; } }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--rule); }
.step { padding-block: 2rem 2.5rem; padding-inline: 0 2rem; border-bottom: 1px solid var(--rule); }
.step .n { font-family: var(--mono); font-size: 0.8125rem; color: var(--ink-dim); letter-spacing: 0.06em; margin-bottom: 1.4rem; }
.step h3 { margin: 0 0 0.5rem; font-weight: 500; font-size: 1.35rem; letter-spacing: -0.015em; }
.step p { margin: 0; font-weight: 300; color: var(--ink-dim); font-size: 1.05rem; line-height: 1.45; max-width: 32ch; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } .step { padding-inline-end: 0; } }

/* ---------- projects ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.75rem; }
.chip { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.02em; padding: 0.45rem 0.95rem; border-radius: 999px; border: 1px solid var(--hairline); background: none; color: var(--ink); cursor: pointer; transition: all 0.15s; }
.chip:hover { border-color: var(--ink); }
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.rail-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 0.9rem; }
.rail-nav { display: flex; gap: 0.5rem; }
.arrow { width: 2.75rem; height: 2.75rem; border-radius: 50%; border: 1px solid var(--ink); background: none; color: var(--ink); font-size: 1.05rem; cursor: pointer; transition: background 0.15s, color 0.15s, opacity 0.15s; }
.arrow:hover:not([disabled]) { background: var(--ink); color: #fff; }
.arrow[disabled] { opacity: 0.25; cursor: default; }
.work-grid {
  display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth; overscroll-behavior-x: contain;
  border-top: 1px solid var(--rule); border-left: 1px solid var(--rule); scrollbar-width: none;
  margin-right: calc(-1 * var(--gutter)); padding-right: var(--gutter); scroll-padding-left: 0;
}
.work-grid::-webkit-scrollbar { display: none; }
.work-grid:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.work { flex: 0 0 calc((100% - var(--gutter)) / 3.3); scroll-snap-align: start; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: 1.1rem 1.1rem 1.5rem; }
.rail-bar { height: 2px; background: var(--hairline); margin-top: 1.25rem; position: relative; overflow: hidden; }
.rail-bar i { position: absolute; top: 0; bottom: 0; left: 0; background: var(--ink); transition: width 0.2s, left 0.2s; }
.work .img { aspect-ratio: 4 / 3; overflow: hidden; background: var(--paper); margin-bottom: 1.1rem; }
.work img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.05); transform: scale(1.01); transition: filter 0.5s, transform 0.6s; }
.work:hover img { filter: none; transform: scale(1.05); }
.work .tag { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.06em; color: var(--ink-dim); }
.work h3 { margin: 0.5rem 0 0.35rem; font-weight: 500; font-size: 1.2rem; letter-spacing: -0.015em; }
.work p { margin: 0; font-weight: 300; color: var(--ink-dim); line-height: 1.45; }
.work.hide { display: none; }
@media (max-width: 980px) { .work { flex-basis: calc((100% - var(--gutter)) / 2.3); } }
@media (max-width: 600px) { .work { flex-basis: 82%; } .work p { font-size: 0.95rem; } }

/* ---------- clients ---------- */
.logo-grid { display: grid; grid-template-columns: repeat(6, 1fr); border-top: 1px solid var(--hairline); border-inline-start: 1px solid var(--hairline); }
.logo-grid div { border-inline-end: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); aspect-ratio: 3 / 2; display: grid; place-items: center; padding: 1.25rem; }
.logo-grid img { max-height: 46px; width: auto; filter: brightness(0); opacity: 0.75; transition: opacity 0.2s; }
.logo-grid div:hover img { opacity: 1; }
.logo-grid .you { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-dim); text-align: center; text-decoration: none; }
@media (max-width: 900px) { .logo-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) {
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .logo-grid div { aspect-ratio: 2 / 1; padding: 0.9rem 1.1rem; }
  .logo-grid img { max-height: 44px; max-width: 100%; opacity: 0.85; }
}

/* ---------- tech ---------- */
.tech-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--rule); border-inline-start: 1px solid var(--hairline); }
.tech { display: flex; flex-direction: column; gap: 0.45rem; min-width: 0; padding: 1.1rem 1.25rem 1.3rem; border-inline-end: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); transition: background 0.2s; }
.tech:hover { background: var(--paper); }
.tech b { font-weight: 500; font-size: 1.15rem; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.tech span { font-family: var(--mono); font-size: 0.72rem; color: var(--ink-dim); letter-spacing: 0.06em; text-transform: uppercase; }
@media (max-width: 900px) { .tech-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .tech { padding: 0.9rem 1rem 1.1rem; } .tech b { font-size: 1.05rem; } }

/* ---------- products ---------- */
.products { border-top: 1px solid var(--rule); }
.product { display: grid; grid-template-columns: 1fr clamp(150px, 22vw, 260px); gap: clamp(1rem, 4vw, 3rem); align-items: center; padding: 1.5rem 0; border-bottom: 1px solid var(--hairline); }
.product .info { display: flex; flex-direction: column; align-items: flex-start; }
.product .meta { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-dim); letter-spacing: 0.04em; }
.product h3 { margin: 0.5rem 0 0; font-weight: 500; font-size: clamp(1.3rem, 2.6vw, 2.1rem); letter-spacing: -0.025em; }
.product p { margin: 0.45rem 0 0.9rem; font-weight: 300; color: var(--ink-dim); line-height: 1.45; max-width: 52ch; }
.product .go { font-family: var(--mono); font-size: 0.875rem; white-space: nowrap; }
.product .logo { position: relative; aspect-ratio: 16 / 10; background: #0b0b0b; overflow: hidden; }
.product .logo img { position: absolute; inset: 9% 6%; width: 88%; height: 82%; object-fit: contain; filter: grayscale(1) contrast(1.05); opacity: 0.85; transform: scale(1); transition: filter 0.5s, transform 0.6s, opacity 0.5s; }
.product:hover .logo img { filter: none; opacity: 1; transform: scale(1.06); }
@media (max-width: 640px) { .product { grid-template-columns: 1fr 104px; gap: 1rem; } .product p { font-size: 0.92rem; } .product { grid-template-columns: 1fr 120px; } .product .logo { aspect-ratio: 1; } .product .logo img { inset: 3%; width: 94%; height: 94%; } }

/* ---------- quote wizard ---------- */
.quote { display: grid; grid-template-columns: 1fr 1.4fr; border: 1px solid var(--rule); }
.quote-side { padding: clamp(1.5rem, 3vw, 2.5rem); border-inline-end: 1px solid var(--rule); background: var(--paper); display: flex; flex-direction: column; justify-content: space-between; gap: 2rem; }
.quote-side ol { list-style: none; margin: 0; padding: 0; font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.03em; }
.quote-side li { padding: 0.5rem 0; border-bottom: 1px solid var(--hairline); color: var(--ink-dim); display: flex; justify-content: space-between; gap: 1rem; }
.quote-side li.cur { color: var(--ink); font-weight: 500; }
.quote-side li.done::after { content: "✓"; }
.quote-side li .v { color: var(--ink); max-width: 55%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.quote-main { padding: clamp(1.5rem, 3vw, 2.5rem); min-height: 30rem; display: flex; flex-direction: column; }
.qstep { display: none; flex: 1; }
.qstep.on { display: block; animation: fade 0.35s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } }
.qstep h3 { margin: 0 0 1.4rem; font-weight: 500; font-size: clamp(1.3rem, 2.4vw, 1.9rem); letter-spacing: -0.02em; }
.opts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }
.opt { text-align: start; font: inherit; font-weight: 300; font-size: 1rem; padding: 0.85rem 1rem; border: 1px solid var(--hairline); background: #fff; color: var(--ink); cursor: pointer; border-radius: 4px; transition: border-color 0.15s, background 0.15s; }
.opt:hover { border-color: var(--ink); }
.opt.on { background: var(--ink); color: #fff; border-color: var(--ink); }
.fields { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.9rem; }
.fields label { display: flex; flex-direction: column; gap: 0.4rem; font-family: var(--mono); font-size: 0.75rem; color: var(--ink-dim); letter-spacing: 0.04em; }
.fields .full { grid-column: 1 / -1; }
.fields input, .fields textarea { font: inherit; font-family: var(--sans); font-size: 1rem; color: var(--ink); padding: 0.75rem 0.9rem; border: 1px solid var(--hairline); border-radius: 4px; background: #fff; }
.fields input:focus, .fields textarea:focus { outline: none; border-color: var(--ink); }
.fields textarea { min-height: 7rem; resize: vertical; }
.qnav { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--hairline); }
.qnav .count { font-family: var(--mono); font-size: 0.8rem; color: var(--ink-dim); }
.review { margin: 0 0 1.5rem; display: grid; grid-template-columns: auto 1fr; gap: 0.6rem 1.5rem; border-top: 1px solid var(--hairline); padding-top: 1rem; font-size: 0.95rem; }
.review dt { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-dim); letter-spacing: 0.04em; }
.review dd { margin: 0; font-weight: 300; }
.qmsg { font-weight: 300; color: var(--ink-dim); line-height: 1.5; max-width: 46ch; }
@media (max-width: 860px) { .quote { grid-template-columns: 1fr; } .quote-side { border-inline-end: 0; border-bottom: 1px solid var(--rule); } .quote-side ol { display: none; } }
@media (max-width: 520px) { .opts, .fields { grid-template-columns: 1fr; } }

/* ---------- band / contact ---------- */
.band { padding-block: clamp(3rem, 7vw, 6rem); border-top: 1px solid var(--hairline); }
.band h2 { font-size: clamp(2.4rem, 7vw, 6rem); letter-spacing: -0.045em; line-height: 0.95; margin-bottom: 1.5rem; }
.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rule); border-inline-start: 1px solid var(--rule); margin-top: 2.5rem; }
.contact { border-inline-end: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: clamp(1.25rem, 2.5vw, 2rem); display: block; text-decoration: none; }
.contact .label { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-dim); letter-spacing: 0.06em; display: block; margin-bottom: 1.4rem; }
.contact .value { font-weight: 500; font-size: clamp(1.05rem, 1.6vw, 1.3rem); letter-spacing: -0.015em; line-height: 1.3; word-break: break-word; }
a.contact:hover .value { text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
footer { background: var(--ink); color: #fff; padding-top: clamp(2.5rem, 5vw, 4rem); padding-bottom: clamp(1.5rem, 4vw, 3rem); }
footer a { color: #fff; }
.foot-big { font-weight: 500; font-size: clamp(3rem, 15vw, 14rem); letter-spacing: -0.06em; line-height: 0.85; margin: 0 0 clamp(2rem, 5vw, 4rem); white-space: nowrap; }
.foot-big .light { opacity: 0.45; }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: clamp(1.5rem, 4vw, 3rem); padding-bottom: clamp(1.75rem, 3.5vw, 2.75rem); }
.foot-head { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.06em; color: rgba(255,255,255,0.55); display: block; margin-bottom: 1.2rem; }
.foot-col a, .foot-col span:not(.foot-head) { display: block; color: #fff; text-decoration: none; font-weight: 300; font-size: 0.95rem; margin-bottom: 0.7rem; }
.foot-col a.brand { display: inline-flex; gap: 0.6rem; }
.foot-col a:hover { text-decoration: underline; text-underline-offset: 4px; }
.foot-col p { font-weight: 300; color: rgba(255,255,255,0.7); max-width: 30ch; line-height: 1.45; margin: 1rem 0 0; }
.foot-copy { font-family: var(--mono); font-size: 0.75rem; color: rgba(255,255,255,0.55); letter-spacing: 0.04em; border-top: 1px solid rgba(255,255,255,0.18); padding-top: 1.25rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr 1fr; } }

/* ---------- reveal ---------- */
.rv { opacity: 0; transform: translateY(14px); transition: opacity 0.7s ease, transform 0.7s ease; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rv { opacity: 1; transform: none; transition: none; }
  .nav-links a, .uline { transition: none; }
}

/* touch screens: colour the item in focus instead of on hover */
@media (hover: none) {
  .work.lit img, .product.lit .logo img { filter: none; opacity: 1; }
}

/* ---------- cookie consent ---------- */
.foot-link { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
footer .foot-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.cookie {
  position: fixed; z-index: 100; inset-inline-start: var(--gutter); bottom: clamp(1rem, 3vw, 2rem);
  width: min(26rem, calc(100% - 2 * var(--gutter)));
  background: #fff; color: var(--ink); border: 1px solid var(--rule);
  padding: 1.25rem 1.4rem 1.4rem; box-shadow: 0 18px 50px -20px rgba(0,0,0,0.35);
  animation: cookie-in 0.45s ease both;
}
.cookie[hidden] { display: none; }
@keyframes cookie-in { from { opacity: 0; transform: translateY(16px); } }
.cookie-head { display: flex; justify-content: space-between; border-bottom: 1px solid var(--hairline); padding-bottom: 0.75rem; }
.cookie h3 { margin: 1rem 0 0.4rem; font-weight: 500; font-size: 1.3rem; letter-spacing: -0.02em; }
.cookie p { margin: 0; font-weight: 300; color: var(--ink-dim); font-size: 0.95rem; line-height: 1.45; }
.cookie-prefs { margin-top: 1rem; border-top: 1px solid var(--hairline); }
.pref { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 0.75rem 0; border-bottom: 1px solid var(--hairline); cursor: pointer; }
.pref b { display: block; font-weight: 500; font-size: 0.95rem; }
.pref small { display: block; font-weight: 300; color: var(--ink-dim); font-size: 0.82rem; margin-top: 0.15rem; }
.pref input { position: absolute; opacity: 0; pointer-events: none; }
.pref i { flex: 0 0 auto; width: 2.4rem; height: 1.35rem; border-radius: 999px; border: 1px solid var(--ink); position: relative; transition: background 0.2s; }
.pref i::after { content: ""; position: absolute; top: 2px; left: 2px; width: calc(1.35rem - 6px); height: calc(1.35rem - 6px); border-radius: 50%; background: var(--ink); transition: transform 0.2s, background 0.2s; }
.pref input:checked + i { background: var(--ink); }
.pref input:checked + i::after { transform: translateX(1.05rem); background: #fff; }
.pref input:disabled + i { opacity: 0.45; }
.pref input:focus-visible + i { outline: 2px solid var(--ink); outline-offset: 2px; }
.cookie-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 0.75rem; margin-top: 1.25rem; }
.cookie-actions .btn { padding: 0.7rem 1.2rem; }
.cookie-actions .foot-link { font-family: var(--mono); font-size: 0.85rem; margin-inline-start: 0.25rem; }
@media (max-width: 520px) {
  .cookie { left: 0.75rem; right: 0.75rem; bottom: 0.75rem; width: auto; padding: 1.1rem 1.1rem 1.2rem; }
  .cookie-actions .btn { flex: 1 1 auto; text-align: center; }
}
@media (prefers-reduced-motion: reduce) { .cookie { animation: none; } }

/* ---------- language switch ---------- */
.langs { display: inline-flex; gap: 0.6rem; align-items: center; }
.nav-links .langs a.lang { color: var(--ink-dim); }
.nav-links .langs a.lang.on { color: var(--ink); font-weight: 500; background-size: 100% 1px; }
.foot-social a { text-decoration: none; }
.foot-social a:hover { text-decoration: underline; text-underline-offset: 4px; }
.foot-col .foot-link { display: block; text-align: start; font-weight: 300; font-size: 0.95rem; margin-bottom: 0.7rem; }

/* ---------- legal page ---------- */
.legal-hero { border-bottom: 1px solid var(--hairline); }
.legal-title { font-size: clamp(2.6rem, 8vw, 7rem); }
.legal { display: grid; grid-template-columns: 16rem minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); padding-block: clamp(2rem, 5vw, 4rem) clamp(3rem, 7vw, 6rem); }
.legal-toc { position: sticky; top: calc(var(--navh) + 1.5rem); align-self: start; }
.legal-toc ol { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); counter-reset: toc; }
.legal-toc li { counter-increment: toc; border-bottom: 1px solid var(--hairline); }
.legal-toc a { display: flex; gap: 0.75rem; padding: 0.55rem 0; font-size: 0.9rem; font-weight: 300; text-decoration: none; color: var(--ink-dim); transition: color 0.15s; }
.legal-toc a::before { content: counter(toc, decimal-leading-zero); font-family: var(--mono); font-size: 0.75rem; padding-top: 0.15rem; }
.legal-toc a:hover, .legal-toc a.on { color: var(--ink); }
.legal-body { max-width: 46rem; }
.legal-sec { padding-bottom: 2.5rem; margin-bottom: 2.5rem; border-bottom: 1px solid var(--hairline); scroll-margin-top: calc(var(--navh) + 1rem); }
.legal-sec:last-child { border-bottom: 0; }
.legal-sec h2 { display: flex; align-items: baseline; gap: 1rem; font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
.legal-sec h2 .n { font-family: var(--mono); font-size: 0.8rem; font-weight: 400; color: var(--ink-dim); letter-spacing: 0.06em; }
.legal-sec h3 { font-weight: 500; font-size: 1.1rem; margin: 1.75rem 0 0.5rem; letter-spacing: -0.01em; }
.legal-sec p, .legal-sec li { font-weight: 300; font-size: 1.05rem; line-height: 1.6; color: #2a2a2a; }
.legal-sec p { margin: 0 0 1rem; }
.legal-sec ul { margin: 0 0 1rem; padding-inline-start: 1.2rem; }
.legal-sec li { margin-bottom: 0.4rem; }
.legal-sec li::marker { color: var(--ink-dim); }
.legal-sec strong { font-weight: 500; color: var(--ink); }
.legal-sec a { text-underline-offset: 3px; }
.legal-sec code { font-family: var(--mono); font-size: 0.85em; background: var(--paper); padding: 0.1em 0.35em; }
.legal-table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.25rem; font-size: 0.95rem; }
.legal-table th { font-family: var(--mono); font-size: 0.72rem; font-weight: 400; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-dim); text-align: start; padding: 0.6rem 1rem 0.6rem 0; border-bottom: 1px solid var(--rule); }
.legal-table td { font-weight: 300; line-height: 1.5; vertical-align: top; text-align: start; padding: 0.75rem 1rem 0.75rem 0; border-bottom: 1px solid var(--hairline); }
.inline-link { font: inherit; color: var(--ink); background: none; border: 0; padding: 0; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 860px) {
  .legal { grid-template-columns: 1fr; }
  .legal-toc { position: static; }
}
@media (max-width: 600px) {
  .legal-table thead { display: none; }
  .legal-table, .legal-table tbody, .legal-table tr, .legal-table td { display: block; width: 100%; }
  .legal-table tr { border-bottom: 1px solid var(--hairline); padding: 0.5rem 0; }
  .legal-table td { border: 0; padding: 0.2rem 0; }
  .legal-table td:first-child { font-weight: 500; }
}

/* ---------- Arabic / RTL ---------- */
[dir="rtl"] {
  --sans: "IBM Plex Sans Arabic", "Roboto", system-ui, sans-serif;
  --mono: "IBM Plex Sans Arabic", "Roboto Mono", ui-monospace, monospace;
}
/* letter-spacing breaks the joining of Arabic letters */
[dir="rtl"] body, [dir="rtl"] body * { letter-spacing: 0 !important; }
[dir="rtl"] h1[dir="ltr"], [dir="rtl"] .foot-big { font-family: "Roboto", system-ui, sans-serif; letter-spacing: -0.045em !important; }
[dir="rtl"] h1[dir="ltr"] { text-align: right; }
[dir="rtl"] h2, [dir="rtl"] h3 { line-height: 1.3; }
[dir="rtl"] .legal-sec p, [dir="rtl"] .legal-sec li { line-height: 1.85; }
/* the 3D stage keeps its left-to-right geometry; only its texts are RTL */
[dir="rtl"] #anatomy .sticky { direction: ltr; }
[dir="rtl"] #anatomy .head, [dir="rtl"] #anatomy .card, [dir="rtl"] #anatomy .cap { direction: rtl; }
[dir="rtl"] #anatomy .head { text-align: right; }
/* project rail scrolls left-to-right; cards read RTL */
[dir="rtl"] .work-grid { direction: ltr; }
[dir="rtl"] .work { direction: rtl; }
[dir="rtl"] .pref i { direction: ltr; }

/* ---------- logo "csl." with blinking dot ---------- */
.brand { gap: 0.7rem; }
.brand .logo { height: 1.15em; width: auto; flex: none; overflow: visible; }
.logo-dot { animation: logo-blink 1.2s steps(1) infinite; }
@keyframes logo-blink { 50% { opacity: 0; } }
footer .brand .logo { height: 1.3em; }
[dir="rtl"] .brand { direction: ltr; }
@media (prefers-reduced-motion: reduce) { .logo-dot { animation: none; } }

/* ---------- brand kit page ---------- */
.bk-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.bk-tile { margin: 0; border: 1px solid var(--rule); background: #fff; display: flex; flex-direction: column; gap: 1rem; padding: 1.25rem; min-width: 0; }
.bk-tile.dark { background: #0b0b0b; color: #fff; border-color: #0b0b0b; }
.bk-tile.dark figcaption span { color: rgba(255,255,255,.6); }
.bk-tile.dark .bk-dl a { color: #fff; border-color: rgba(255,255,255,.4); }
.bk-stage { min-height: 13rem; display: grid; place-items: center; padding: 1.5rem; }
.bk-mark { width: min(11rem, 60%); height: auto; }
.bk-lock { width: min(22rem, 90%); height: auto; }
.bk-tile figcaption { display: flex; flex-direction: column; gap: 0.3rem; border-top: 1px solid var(--hairline); padding-top: 0.9rem; }
.bk-tile.dark figcaption { border-color: rgba(255,255,255,.18); }
.bk-tile figcaption b { font-weight: 500; }
.bk-tile figcaption span { font-weight: 300; color: var(--ink-dim); font-size: 0.95rem; }
.bk-dl { display: flex !important; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.5rem; }
.bk-dl a { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.02em; text-decoration: none; border: 1px solid var(--hairline); border-radius: 999px; padding: 0.35rem 0.75rem; color: var(--ink); transition: background .15s, color .15s; }
.bk-dl a::before { content: "↓ "; }
.bk-dl a:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.bk-tile.dark .bk-dl a:hover { background: #fff; color: #000; }
.bk-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1rem; align-items: stretch; }
.bk-big .bk-stage { min-height: 18rem; }
.bk-big .logo { width: min(16rem, 70%); height: auto; }
.bk-specs { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 0; border-top: 1px solid var(--rule); }
.bk-specs dt, .bk-specs dd { padding: 0.75rem 0; border-bottom: 1px solid var(--hairline); margin: 0; }
.bk-specs dt { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.04em; color: var(--ink-dim); padding-inline-end: 1.5rem; }
.bk-specs dd { font-weight: 300; }
.bk-specs-wide { margin-top: 1.5rem; }
.bk-space { position: relative; padding: 2.4rem; outline: 1px dashed rgba(0,0,0,.35); outline-offset: 0; background: repeating-linear-gradient(45deg, rgba(0,0,0,.035) 0 6px, transparent 6px 12px); }
.bk-space .bk-mark { display: block; width: 10rem; background: #fff; outline: 1px solid rgba(0,0,0,.12); }
.bk-space .x { position: absolute; font-family: var(--mono); font-style: normal; font-size: 0.75rem; color: var(--ink-dim); }
.bk-space .x.t { top: 0.7rem; left: 50%; } .bk-space .x.b { bottom: 0.7rem; left: 50%; }
.bk-space .x.l { left: 0.9rem; top: 50%; } .bk-space .x.r { right: 0.9rem; top: 50%; }
.bk-sizes { display: flex; align-items: flex-end; justify-content: center; gap: 2.5rem; flex-wrap: wrap; }
.bk-sizes figure { margin: 0; display: flex; flex-direction: column; align-items: center; gap: 0.75rem; }
.bk-sizes figcaption { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-dim); }
.bk-swatches { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--rule); }
.bk-swatch { font: inherit; text-align: start; border: 0; border-inline-end: 1px solid var(--rule); min-height: 11rem; padding: 1.1rem; display: flex; flex-direction: column; justify-content: flex-end; gap: 0.3rem; cursor: pointer; }
.bk-swatch:last-child { border-inline-end: 0; }
.bk-swatch b { font-weight: 500; font-size: 1.05rem; }
.bk-swatch span { font-family: var(--mono); font-size: 0.72rem; opacity: .75; }
.bk-swatch em { font-style: normal; font-family: var(--mono); font-size: 0.72rem; opacity: 0; transition: opacity .15s; }
.bk-swatch:hover em, .bk-swatch:focus-visible em, .bk-swatch.done em { opacity: 1; }
.bk-type { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.bk-specimen { margin: 0.5rem 0; font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 500; letter-spacing: -0.03em; line-height: 1.1; overflow-wrap: anywhere; }
.bk-mono { font-family: "Roboto Mono", monospace; font-weight: 400; letter-spacing: 0; }
.bk-dont { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.bk-dont figure { margin: 0; }
.bk-dont figure > div { aspect-ratio: 4 / 3; border: 1px solid var(--hairline); display: grid; place-items: center; overflow: hidden; background: #fff; position: relative; }
.bk-dont figure > div img { width: 45%; }
.bk-dont figure:not(.ok) > div::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top right, transparent calc(50% - 1px), rgba(200,0,0,.55) 50%, transparent calc(50% + 1px)); }
.bk-dont figcaption { font-size: 0.92rem; font-weight: 400; margin-top: 0.6rem; }
.bk-dont figure.ok figcaption { font-weight: 500; }
.bk-photo { background: radial-gradient(120% 120% at 30% 20%, #3a3a3a, #0b0b0b) !important; }
.bk-busy { background: repeating-linear-gradient(135deg, #e44 0 14px, #fc3 14px 28px, #39f 28px 42px) !important; }
.bk-fake { font-weight: 500; font-size: 2.4rem; letter-spacing: -0.05em; }
.bk-fake b { font-size: 0.8em; }
.bk-icons { display: flex; flex-wrap: wrap; gap: 2.5rem; align-items: flex-end; border-top: 1px solid var(--rule); padding-top: 2rem; }
.bk-icons figure { margin: 0; display: flex; flex-direction: column; gap: 0.75rem; }
.bk-icons figcaption { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-dim); display: flex; flex-direction: column; gap: 0.2rem; }
.bk-code { border: 1px solid var(--rule); margin-bottom: 1rem; }
.bk-code-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 0.6rem 0.9rem; border-bottom: 1px solid var(--hairline); background: var(--paper); }
.bk-code pre { margin: 0; padding: 1rem 1.1rem; overflow-x: auto; background: #0b0b0b; color: #f2f2ee; font-family: var(--mono); font-size: 0.85rem; line-height: 1.6; text-align: left; }
.bk-terms { max-width: 62ch; }
.bk-terms p { font-weight: 300; font-size: 1.1rem; line-height: 1.6; margin: 0 0 1rem; }
.bk-terms strong { font-weight: 500; }
@media (max-width: 900px) {
  .bk-grid, .bk-split, .bk-type { grid-template-columns: 1fr; }
  .bk-swatches { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bk-swatch:nth-child(2) { border-inline-end: 0; }
  .bk-swatch:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
  .bk-dont { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bk-stage { min-height: 10rem; }
}