/* ==========================================================================
   Kooheji Systems — "Line" design system
   Derived from the logo: one continuous line, a 45° cut, bold set against light.
   The interface is black and white. The only colour is the clients' work.
   ========================================================================== */

:root {
  --ink: #0a0a0b; --ink-2: #131315; --ink-3: #1d1d20;
  --bone: #eeece6; --bone-2: #e3e0d8; --white: #fff;
  --f: "Jost", "Alexandria", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --gut: clamp(20px, 4.2vw, 72px);
  --cut: 14px;
  --hdr: 76px;
  --t-hero: clamp(2.7rem, 7.6vw, 8.25rem);
  --t-xl: clamp(2.6rem, 8.4vw, 9.5rem);
  --t-page: clamp(2.5rem, 6.4vw, 6.75rem);
  --t-h2: clamp(2.1rem, 5vw, 5.25rem);
  --t-h3: clamp(1.3rem, 1.9vw, 1.75rem);
  --t-lede: clamp(1.1rem, 1.45vw, 1.4rem);
  --ease: cubic-bezier(.2, .7, .1, 1);
  --ease-io: cubic-bezier(.7, 0, .2, 1);
}
html[lang="ar"] { --f: "Alexandria", "Jost", system-ui, sans-serif; --mono: "Alexandria", "IBM Plex Mono", sans-serif; }

[data-theme="ink"] { --bg: var(--ink); --fg: #fff; --mut: rgba(255, 255, 255, .62); --rule: rgba(255, 255, 255, .16); --soft: var(--ink-2); }
[data-theme="bone"] { --bg: var(--bone); --fg: var(--ink); --mut: rgba(10, 10, 11, .66); --rule: rgba(10, 10, 11, .2); --soft: var(--bone-2); }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; background: var(--ink); scrollbar-color: #444 var(--ink); }
body { margin: 0; font-family: var(--f); font-size: 1.0625rem; line-height: 1.55; font-weight: 400; color: #fff; background: var(--ink); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: clip; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
::selection { background: #fff; color: #000; }
[data-theme="bone"] ::selection { background: #000; color: #fff; }
:focus-visible { outline: 2px solid currentColor; outline-offset: 4px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: fixed; inset-inline-start: 12px; top: -80px; z-index: 2000; background: #fff; color: #000; padding: 10px 16px; }
.skip:focus { top: 12px; }

section, footer { background: var(--bg); color: var(--fg); position: relative; }
.wrap { width: min(100% - 2 * var(--gut), 1560px); margin-inline: auto; }

/* ---------- type */
.label { font-family: var(--mono); font-size: .75rem; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--mut); display: flex; align-items: center; gap: .9em; }
.label::before { content: ""; width: 9px; height: 9px; background: currentColor; clip-path: polygon(100% 0, 100% 100%, 0 50%); opacity: .9; flex: none; }
[dir="rtl"] .label { letter-spacing: 0; font-size: .85rem; }
[dir="rtl"] .label::before { clip-path: polygon(0 0, 0 100%, 100% 50%); }
.label--fwd::before { clip-path: polygon(0 0, 0 100%, 100% 50%); order: 2; }
[dir="rtl"] .label--fwd::before { clip-path: polygon(100% 0, 100% 100%, 0 50%); }
.display { font-weight: 300; font-size: var(--t-h2); line-height: .98; letter-spacing: -.028em; text-wrap: balance; }
.display b { font-weight: 700; }
.display--hero { font-size: var(--t-hero); line-height: .94; letter-spacing: -.035em; }
.display--xl { font-size: var(--t-xl); line-height: .92; letter-spacing: -.04em; }
.display--page { font-size: var(--t-page); line-height: .95; letter-spacing: -.035em; max-width: 14em; }
[dir="rtl"] .display { letter-spacing: 0; line-height: 1.28; font-weight: 300; }
[dir="rtl"] .display--hero { font-size: clamp(2.3rem, 6.1vw, 6.6rem); line-height: 1.24; }
[dir="rtl"] .display--xl { font-size: clamp(2.3rem, 6.6vw, 7.4rem); line-height: 1.24; }
[dir="rtl"] .display--page { font-size: clamp(2.2rem, 5.2vw, 5.4rem); line-height: 1.28; }
.lede { font-size: var(--t-lede); line-height: 1.45; color: var(--mut); max-width: 34em; font-weight: 400; }
[dir="rtl"] .lede, [dir="rtl"] body { line-height: 1.8; }
.prose p { font-size: 1.15rem; line-height: 1.6; max-width: 36em; }
.prose p + p { margin-top: 1.1em; }
[dir="rtl"] .prose p { line-height: 1.95; }

/* ---------- controls */
.chev { width: .5em; height: .85em; flex: none; transition: transform .45s var(--ease); }
[dir="rtl"] .chev { transform: scaleX(-1); }
.btn { --c: var(--cut); position: relative; display: inline-flex; align-items: center; gap: 1.1em; padding: 1.05em 1.5em 1.05em 1.6em; font-weight: 500; font-size: 1rem; line-height: 1; white-space: nowrap; isolation: isolate;
  clip-path: polygon(var(--c) 0, 100% 0, 100% calc(100% - var(--c)), calc(100% - var(--c)) 100%, 0 100%, 0 var(--c)); transition: color .45s var(--ease); cursor: pointer; }
.btn::before { content: ""; position: absolute; inset: 0; z-index: -2; background: var(--fg); }
.btn::after { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--bg); transform: translateY(101%); transition: transform .55s var(--ease); }
.btn--solid { color: var(--bg); }
.btn--solid::after { inset: 1.5px; clip-path: polygon(var(--c) 0, 100% 0, 100% calc(100% - var(--c)), calc(100% - var(--c)) 100%, 0 100%, 0 var(--c)); }
.btn--ghost { color: var(--fg); }
.btn--ghost::before { background: var(--fg); }
.btn--ghost::after { inset: 1.5px; transform: none; background: var(--bg); clip-path: polygon(var(--c) 0, 100% 0, 100% calc(100% - var(--c)), calc(100% - var(--c)) 100%, 0 100%, 0 var(--c)); transition: opacity .45s var(--ease); }
@media (hover: hover) {
  .btn--solid:hover { color: var(--fg); } .btn--solid:hover::after { transform: none; }
  .btn--ghost:hover { color: var(--bg); } .btn--ghost:hover::after { opacity: 0; }
  .btn:hover .chev { transform: translateX(5px); } [dir="rtl"] .btn:hover .chev { transform: scaleX(-1) translateX(5px); }
}
.link { display: inline-flex; align-items: center; gap: .8em; font-weight: 500; padding-block: .35em; background: linear-gradient(currentColor, currentColor) no-repeat 0 100% / 100% 1px; transition: background-size .5s var(--ease), font-weight .35s; }
[dir="rtl"] .link { background-position: 100% 100%; }
@media (hover: hover) { .link:hover { background-size: 0 1px; } }
.link--back .chev { transform: scaleX(-1); } [dir="rtl"] .link--back .chev { transform: none; }

/* ---------- intro (CSS-only, cannot get stuck) */
.intro { display: none; }
.js:not(.seen) .intro { display: grid; place-items: center; position: fixed; inset: 0; z-index: 1500; background: var(--ink); color: #fff; animation: intro-out .8s var(--ease-io) 1.05s both; pointer-events: none; }
.intro__mark { width: clamp(88px, 12vw, 150px); overflow: visible; }
.mark__line { stroke-dasharray: 1; stroke-dashoffset: 0; }
.intro .mark__line { animation: draw 1s var(--ease-io) .05s both; }
@keyframes draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@keyframes intro-out { to { clip-path: inset(0 0 100% 0); visibility: hidden; } from { clip-path: inset(0); } }

/* ---------- header */
.hdr { position: fixed; inset: 0 0 auto 0; z-index: 900; height: var(--hdr); padding-inline: var(--gut); display: flex; align-items: center; justify-content: space-between; gap: 24px; color: #fff; transition: transform .6s var(--ease), color .35s; }
.hdr[data-on="bone"] { color: var(--ink); }
.hdr.is-hidden { transform: translateY(-110%); }
.menu-open .hdr { color: #fff; transform: none; }
.hdr__logo { display: flex; align-items: center; gap: 13px; }
.hdr__mark { width: 34px; } .hdr__word { width: 148px; margin-top: 3px; }
.hdr__nav { display: flex; gap: clamp(18px, 2.6vw, 44px); font-size: .98rem; }
.hdr__nav a { position: relative; padding-block: 8px; font-weight: 400; transition: font-weight .3s; }
.hdr__nav a::after { content: ""; position: absolute; inset: auto 0 2px 0; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ease); }
[dir="rtl"] .hdr__nav a::after { transform-origin: right; }
.hdr__nav a[aria-current]::after { transform: none; } .hdr__nav a[aria-current] { font-weight: 600; }
@media (hover: hover) { .hdr__nav a:hover::after { transform: none; } }
.hdr__end { display: flex; align-items: center; gap: 22px; }
.hdr__lang { font-size: .95rem; padding: 6px 2px; opacity: .85; font-family: "Alexandria", "Jost", sans-serif; }
html[lang="ar"] .hdr__lang { font-family: "Jost", sans-serif; }
.hdr__cta { display: inline-flex; align-items: center; gap: .8em; font-weight: 600; font-size: .95rem; padding: .78em 1.1em .78em 1.2em; background: #fff; color: var(--ink); clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px); transition: background .35s, color .35s, opacity .3s; }
.hdr[data-on="bone"] .hdr__cta { background: var(--ink); color: #fff; }
@media (hover: hover) { .hdr__cta:hover { opacity: .78; } .hdr__cta:hover .chev { transform: translateX(4px); } [dir="rtl"] .hdr__cta:hover .chev { transform: scaleX(-1) translateX(4px); } }
.hdr__menu { display: none; width: 44px; height: 44px; position: relative; }
.hdr__menu i { position: absolute; left: 9px; right: 9px; height: 2px; background: currentColor; transition: transform .45s var(--ease), top .45s var(--ease); }
.hdr__menu i:nth-of-type(1) { top: 17px; } .hdr__menu i:nth-of-type(2) { top: 26px; }
.menu-open .hdr__menu i:nth-of-type(1) { top: 21px; transform: rotate(45deg); } .menu-open .hdr__menu i:nth-of-type(2) { top: 21px; transform: rotate(-45deg); }
.menu { position: fixed; inset: 0; z-index: 800; background: var(--ink); color: #fff; display: flex; flex-direction: column; justify-content: space-between; padding: calc(var(--hdr) + 5vh) var(--gut) max(28px, env(safe-area-inset-bottom)); clip-path: inset(0 0 100% 0); transition: clip-path .7s var(--ease-io); visibility: hidden; }
.menu[hidden] { display: flex; }
.menu-open .menu { clip-path: inset(0); visibility: visible; }
.menu__nav a { display: flex; align-items: baseline; gap: 18px; font-size: clamp(2.4rem, 11vw, 4.2rem); font-weight: 300; line-height: 1.12; padding-block: .12em; border-bottom: 1px solid rgba(255, 255, 255, .14); }
.menu__nav small { font-family: var(--mono); font-size: .75rem; opacity: .55; }
.menu__foot { display: flex; flex-direction: column; gap: 8px; font-size: 1.05rem; align-items: flex-start; }
@media (max-width: 960px) { .hdr__nav, .hdr__cta, .hdr__lang { display: none; } .hdr__menu { display: block; } :root { --hdr: 64px; } .hdr__mark { width: 30px; } .hdr__word { width: 128px; } }

/* ---------- reveal states (only when JS is running) */
.js [data-reveal] { opacity: 0; transform: translateY(26px); }
.js [data-split] { visibility: hidden; }
.js [data-words] .w { opacity: .14; }

.ln-mask { padding-block: .14em; margin-block: -.14em; }
[dir="rtl"] .ln-mask { padding-block: .3em; margin-block: -.3em; }

/* ---------- hero */
.hero { min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; overflow: clip; }
.hero__field { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__static { position: absolute; inset: 0; pointer-events: none; }
.no-gl .hero__field { display: none; }
.hero__mark { position: absolute; left: 0; top: 0; width: 0; color: #fff; opacity: 0; visibility: hidden; transform-origin: 50% 50%; will-change: transform, opacity; }
.hero__mark.is-in { visibility: visible; opacity: 1; transition: opacity 1.2s var(--ease); }
.hero__mark.is-done { transition: none; }
.hero__mark.is-off { display: none; }
.hero__in { position: relative; padding-top: calc(var(--hdr) + 40px); padding-bottom: clamp(28px, 5vh, 64px); }
.hero__eyebrow { margin-bottom: clamp(18px, 3vh, 34px); }
.display--hero { max-width: 11.5em; }
.hero__row { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-top: clamp(26px, 4.5vh, 56px); flex-wrap: wrap; }
.hero__row .lede { color: rgba(255, 255, 255, .78); max-width: 30em; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__foot { position: relative; border-top: 1px solid var(--rule); padding-block: 18px; }
.hero__foot .wrap { display: flex; gap: 34px; align-items: center; }
.hero__foot ul { display: flex; gap: clamp(18px, 2.6vw, 44px); flex-wrap: wrap; font-size: .95rem; color: rgba(255, 255, 255, .8); }
.hero__foot .label { flex: none; }
@media (max-width: 760px) { .hero__foot .wrap { flex-direction: column; align-items: flex-start; gap: 10px; } .hero__foot ul { gap: 4px 18px; font-size: .88rem; } .hero__cta { gap: 10px; flex-wrap: nowrap; width: 100%; } .hero__cta .btn { flex: 1 1 0; justify-content: space-between; padding: 1em .95em 1em 1.05em; gap: .5em; font-size: .95rem; min-width: 0; } .hero__row { gap: 22px; margin-top: 20px; } .hero__eyebrow { margin-bottom: 14px; } }
/* portrait screens: always keep room above the headline for the mark */
@media (max-aspect-ratio: 1/1) { .hero__in { padding-top: calc(var(--hdr) + clamp(150px, 42vw, 250px)); } }

/* ---------- manifesto + metrics */
.mani { padding-block: clamp(90px, 17vh, 220px) clamp(70px, 12vh, 150px); }
.mani--tight { padding-block: clamp(60px, 10vh, 120px) 0; }
.mani__text { font-size: clamp(1.65rem, 3.9vw, 4rem); line-height: 1.12; font-weight: 300; letter-spacing: -.022em; max-width: 21em; }
[dir="rtl"] .mani__text, [dir="rtl"] .about__lead { letter-spacing: 0; line-height: 1.6; font-size: clamp(1.5rem, 3.1vw, 3.1rem); }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: clamp(60px, 11vh, 140px); border-top: 1px solid var(--rule); }
.mani--tight .metrics { margin-top: 0; }
.metric { padding: 26px 26px 6px 0; border-inline-end: 1px solid var(--rule); padding-inline: 0 26px; }
.metric + .metric { padding-inline-start: 26px; } .metric:last-child { border: 0; }
.metric b { display: block; font-size: clamp(3.2rem, 8vw, 8rem); font-weight: 700; line-height: .95; letter-spacing: -.04em; text-align: start; unicode-bidi: plaintext; }
.metric span { display: block; margin-top: 14px; color: var(--mut); max-width: 16em; }
@media (max-width: 760px) { .metrics { grid-template-columns: 1fr; } .metric, .metric + .metric { padding: 22px 0; border-inline-end: 0; border-bottom: 1px solid var(--rule); display: flex; align-items: baseline; gap: 18px; } .metric b { min-width: 2.4em; } .metric span { margin: 0; } }

/* ---------- section heads */
.sec-head { padding-top: clamp(84px, 15vh, 190px); padding-bottom: clamp(36px, 7vh, 84px); display: grid; gap: 22px; position: relative; }
.sec-head__link { position: absolute; inset-inline-end: 0; bottom: clamp(36px, 7vh, 84px); }
@media (max-width: 760px) { .sec-head__link { position: static; justify-self: start; } }

/* ---------- browser frame */
.frame { background: #0f0f10; border: 1px solid rgba(255, 255, 255, .2); color: #fff; }
[data-theme="bone"] .frame { border-color: rgba(10, 10, 11, .25); }
.frame__bar { height: 34px; display: flex; align-items: center; gap: 7px; padding-inline: 13px; border-bottom: 1px solid rgba(255, 255, 255, .14); font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; color: rgba(255, 255, 255, .6); }
.frame__bar i { width: 8px; height: 8px; background: rgba(255, 255, 255, .32); clip-path: polygon(3px 0, 100% 0, 100% calc(100% - 3px), calc(100% - 3px) 100%, 0 100%, 0 3px); }
.frame__bar span { margin-inline-start: 10px; }
.frame__view { aspect-ratio: 16 / 10; overflow: hidden; background: #111; }
.frame__view img { width: 100%; height: auto; filter: grayscale(1) contrast(1.06) brightness(.9); transition: filter 1.1s var(--ease); will-change: transform; }
.is-live .frame__view img, .frame.is-live .frame__view img { filter: none; }

/* ---------- work: stacked cases */
.cases { position: relative; }
.case-slot { position: relative; height: 290svh; }
.case-slot + .case-slot { margin-top: -100svh; }
.case-slot:last-child { height: 190svh; }
.case { position: sticky; top: 0; height: 100svh; background: var(--ink); border-top: 1px solid var(--rule); overflow: clip; }
.case-slot:nth-child(even) .case { background: var(--ink-2); }
.case__in { height: 100%; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: clamp(28px, 5vw, 96px); align-items: center; padding-top: var(--hdr); }
.case__no { font-family: var(--mono); font-size: .8rem; color: var(--mut); margin-bottom: clamp(18px, 4vh, 44px); display: flex; gap: 8px; align-items: baseline; direction: ltr; justify-content: flex-start; }
[dir="rtl"] .case__no { justify-content: flex-end; }
.case__no b { font-family: var(--f); font-weight: 700; font-size: clamp(2.6rem, 5vw, 5rem); line-height: .9; color: #fff; letter-spacing: -.04em; }
.case__client { font-size: clamp(1.9rem, 3.5vw, 3.6rem); font-weight: 700; line-height: 1; letter-spacing: -.03em; margin-top: 14px; text-wrap: balance; }
.case__title { font-size: clamp(1.3rem, 2.1vw, 2.1rem); font-weight: 300; line-height: 1.12; margin-top: 12px; color: rgba(255, 255, 255, .86); text-wrap: balance; }
.case__scope { margin-top: 22px; color: var(--mut); padding-top: 16px; border-top: 1px solid var(--rule); max-width: 26em; }
.case__meta .btn { margin-top: clamp(22px, 4vh, 44px); }
[dir="rtl"] .case__client { letter-spacing: 0; line-height: 1.3; } [dir="rtl"] .case__title { line-height: 1.5; }
.case__media { display: block; }
.case__media .frame { clip-path: polygon(22px 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%, 0 22px); border: 0; }
.case__media .frame__view { max-height: 68svh; }
@media (max-width: 960px) {
  .case-slot, .case-slot:last-child { height: auto; } .case-slot + .case-slot { margin-top: 0; }
  .case { position: relative; height: auto; padding-block: 44px 56px; }
  .case__in { grid-template-columns: 1fr; padding-top: 0; gap: 26px; }
  .case__media { order: -1; }
  .case__no b { font-size: 2.2rem; } .case__no { margin-bottom: 14px; }
}

/* ---------- system diagram */
.sys { padding-bottom: clamp(84px, 14vh, 180px); }
.sys__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(30px, 5vw, 90px); align-items: center; padding-top: clamp(84px, 15vh, 190px); }
.sys__copy { display: grid; gap: 24px; justify-items: start; }
.sys__svg { width: 100%; height: auto; overflow: visible; }
.sys__link path { fill: none; stroke: var(--fg); stroke-opacity: .32; stroke-width: 1.4; stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.4s var(--ease-io), stroke-opacity .3s, stroke-width .3s; }
.sys__link circle { fill: var(--fg); opacity: 0; transition: opacity .6s 1.2s; }
.is-in .sys__link path { stroke-dashoffset: 0; } .is-in .sys__link circle { opacity: 1; }
.sys__link.is-on path { stroke-opacity: 1; stroke-width: 2.4; }
.sys__node { cursor: pointer; outline: none; }
.sys__node polygon { fill: var(--bg); stroke: var(--fg); stroke-width: 1.4; transition: fill .35s var(--ease); }
.sys__node text { font: 500 15.5px var(--f); fill: var(--fg); transition: fill .35s; pointer-events: none; }
.sys__node.is-on polygon { fill: var(--fg); } .sys__node.is-on text { fill: var(--bg); font-weight: 700; }
.sys__node:focus-visible polygon { stroke-width: 3; }
.sys__core polygon { fill: var(--fg); } .sys__core path { fill: var(--bg); } .sys__core text { font: 600 14px var(--f); fill: var(--bg); }
.js .sys__node, .js .sys__core { opacity: 0; transition: opacity .7s var(--ease); } .js .is-in .sys__node, .js .is-in .sys__core { opacity: 1; }
.is-in .sys__node:nth-of-type(n) { transition-delay: .5s; }
.sys__cap { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--rule); display: grid; gap: 6px; align-content: start; height: 7.2em; overflow: hidden; }
.sys__cap b { font-weight: 700; font-size: 1.15rem; } .sys__cap span { color: var(--mut); }
.sys__list { display: none; }
@media (max-width: 900px) {
  .sys__grid { grid-template-columns: 1fr; }
  .sys__svg, .sys__cap { display: none; }
  .sys__list { display: block; position: relative; padding-inline-start: 30px; }
  .sys__list::before { content: ""; position: absolute; inset-block: 8px; inset-inline-start: 5px; width: 1.5px; background: var(--fg); }
  .sys__list li { position: relative; padding-block: 13px; border-bottom: 1px solid var(--rule); display: grid; gap: 2px; }
  .sys__list li::before { content: ""; position: absolute; inset-inline-start: -30px; top: 19px; width: 12px; height: 12px; background: var(--bg); border: 1.5px solid var(--fg); clip-path: polygon(4px 0, 100% 0, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0 100%, 0 4px); }
  .sys__list b { font-weight: 700; font-size: 1.08rem; } .sys__list span { color: var(--mut); font-size: .98rem; }
}

/* ---------- client register */
.reg { padding-bottom: clamp(84px, 14vh, 180px); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 34px; }
.chip { padding: .68em 1.1em; background: rgba(255, 255, 255, .09); font-size: .92rem; clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px); transition: background .3s, color .3s; position: relative; }
.chip.is-on { background: #fff; color: var(--ink); font-weight: 600; }
@media (hover: hover) { .chip:not(.is-on):hover { background: rgba(255, 255, 255, .2); } }
.reg__list { columns: 3; column-gap: clamp(24px, 4vw, 72px); border-top: 1px solid var(--rule); }
.reg__list li { break-inside: avoid; display: grid; grid-template-columns: 2.4em 1fr; align-items: baseline; padding-block: 15px 14px; border-bottom: 1px solid var(--rule); transition: opacity .45s var(--ease); cursor: default; }
.reg__n { font-family: var(--mono); font-size: .7rem; color: var(--mut); direction: ltr; text-align: start; }
.reg__name { font-size: clamp(1.12rem, 1.5vw, 1.5rem); font-weight: 300; line-height: 1.2; transition: font-weight .4s var(--ease), letter-spacing .4s; }
/* The sector label is laid over the row, never in the flow: a row that grows on hover makes the
   balanced columns reshuffle, which moves the row from under the pointer and flickers. */
.reg__list li { position: relative; }
.reg__s { position: absolute; inset-inline-start: 2.55rem; bottom: 5px; font-size: .74rem; line-height: 1; color: var(--mut); white-space: nowrap; opacity: 0; transform: translateY(4px); transition: opacity .35s var(--ease), transform .35s var(--ease); pointer-events: none; }
.reg__list li.is-off { opacity: .16; }
@media (hover: hover) { .reg__list li:hover .reg__name { -webkit-text-stroke-width: .045em; } .reg__list li:hover .reg__s { opacity: 1; transform: none; } .reg__list li:hover .reg__name { transform: translateY(-7px); } }
.reg__more { display: none; margin-top: 26px; }
@media (max-width: 1100px) { .reg__list { columns: 2; } }
@media (max-width: 640px) { .reg__list:not(.is-all) li:nth-child(n+11) { display: none; } .reg__list:not(.is-all) + .reg__more { display: inline-flex; } }
@media (max-width: 640px) { .reg__list { columns: 1; } .chips { flex-wrap: nowrap; overflow-x: auto; margin-inline: calc(var(--gut) * -1); padding-inline: var(--gut); scrollbar-width: none; } .chip { flex: none; } }

/* ---------- principles */
.prins { padding-bottom: clamp(84px, 14vh, 180px); }
.prin__list { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(20px, 2.6vw, 44px); }
.prin { border-top: 1.5px solid var(--fg); padding-top: 18px; }
.prin__n { font-family: var(--mono); font-size: .75rem; color: var(--mut); }
.prin h3 { font-size: var(--t-h3); font-weight: 700; line-height: 1.1; letter-spacing: -.015em; margin: clamp(26px, 6vh, 70px) 0 14px; text-wrap: balance; }
[dir="rtl"] .prin h3 { letter-spacing: 0; line-height: 1.4; }
.prin p { color: var(--mut); }
@media (max-width: 1100px) { .prin__list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .prin__list { grid-template-columns: 1fr; } .prin h3 { margin-top: 18px; } }

/* ---------- end CTA + footer */
.end { padding-block: clamp(100px, 18vh, 230px) clamp(70px, 11vh, 140px); border-top: 1px solid var(--rule); overflow: clip; }
.end .display { margin-top: 26px; }
.end .display a { display: block; }
.end__row { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-top: clamp(36px, 7vh, 80px); flex-wrap: wrap; }
.end__cta { display: flex; gap: 26px; align-items: center; flex-wrap: wrap; }
.ftr { border-top: 1px solid var(--rule); padding-block: clamp(44px, 7vh, 80px) 26px; font-size: .98rem; }
.ftr__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 34px; }
.ftr__mark { width: 74px; overflow: visible; margin-bottom: 20px; }
.ftr__brand p { color: var(--mut); max-width: 18em; }
.ftr .label { margin-bottom: 14px; }
.ftr__nav { display: grid; gap: 6px; justify-items: start; align-content: start; }
.ftr a { transition: opacity .3s; } @media (hover: hover) { .ftr a:hover { opacity: .6; } }
.ftr__base { display: flex; justify-content: space-between; gap: 20px; margin-top: clamp(44px, 8vh, 90px); padding-top: 18px; border-top: 1px solid var(--rule); color: var(--mut); font-size: .85rem; flex-wrap: wrap; }
@media (max-width: 860px) { .ftr__grid { grid-template-columns: 1fr 1fr; } .ftr__brand { grid-column: 1 / -1; } }

/* ---------- inner pages */
.phead, .chead { padding-top: calc(var(--hdr) + clamp(70px, 15vh, 180px)); padding-bottom: clamp(50px, 9vh, 110px); }
.phead .display, .chead .display { margin-top: 24px; }
.phead .lede { margin-top: clamp(22px, 4vh, 40px); }
.chead .link--back { margin-bottom: clamp(28px, 5vh, 54px); }
.chead__sub { font-size: clamp(1.35rem, 2.7vw, 2.75rem); font-weight: 300; line-height: 1.15; margin-top: 16px; color: rgba(255, 255, 255, .82); letter-spacing: -.015em; }
[dir="rtl"] .chead__sub { letter-spacing: 0; line-height: 1.5; }
.wlist { padding-bottom: clamp(80px, 12vh, 160px); }
.wrow { display: grid; grid-template-columns: 3.4em minmax(0, 1fr) 14em clamp(180px, 22vw, 340px); gap: clamp(16px, 2.6vw, 44px); align-items: center; padding-block: clamp(20px, 3.4vh, 38px); border-top: 1px solid var(--rule); }
.wrow:last-child { border-bottom: 1px solid var(--rule); }
.wrow__n { font-family: var(--mono); font-size: .8rem; color: var(--mut); direction: ltr; text-align: start; }
.wrow__t b { display: block; font-size: clamp(1.7rem, 3.8vw, 4rem); font-weight: 300; line-height: 1.02; letter-spacing: -.03em; transition: font-weight .45s var(--ease); }
.wrow__t em { display: block; font-style: normal; color: var(--mut); margin-top: 10px; font-size: 1.05rem; }
[dir="rtl"] .wrow__t b { letter-spacing: 0; line-height: 1.35; }
.wrow__img .frame__bar { display: none; }
/* touch screens have no hover cursor, so each row carries its own visible link */
.wrow__go { display: none; font-style: normal; }
@media (max-width: 900px), (hover: none) { .wrow__go { display: inline-flex; align-items: center; gap: .7em; margin-top: 16px; padding-bottom: 5px; font-weight: 500; font-size: .98rem; border-bottom: 1px solid currentColor; } }
.wrow__img .frame { clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px); border: 0; }
@media (hover: hover) { .wrow:hover .wrow__t b { -webkit-text-stroke-width: .04em; } .wrow:hover .frame__view img { filter: none; } }
@media (max-width: 900px) { .wrow { grid-template-columns: 2.4em 1fr; } .wrow__s { display: none; } .wrow__img { grid-column: 1 / -1; order: -1; } .wrow__img .frame__view img { filter: none; } }

.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 28px; margin-top: clamp(40px, 8vh, 90px); }
.facts > div { border-top: 1px solid var(--rule); padding-block: 14px 6px; }
.facts dt { font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--mut); margin-bottom: 8px; }
[dir="rtl"] .facts dt { letter-spacing: 0; font-size: .82rem; }
.facts dd { font-size: 1.08rem; }
.facts--col { grid-template-columns: 1fr; margin-top: 0; }
@media (max-width: 860px) { .facts { grid-template-columns: 1fr 1fr; } .facts--col { grid-template-columns: 1fr; } }
.cshow { padding-bottom: clamp(70px, 12vh, 150px); }
.cshow .frame { clip-path: polygon(26px 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%, 0 26px); border: 0; }
.cshow .frame__view { aspect-ratio: 16 / 9; max-height: 82svh; }
.cshow .frame__view img { filter: none; }
.cbody { padding-block: clamp(80px, 13vh, 170px); }
.cbody__grid { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(36px, 6vw, 110px); }
.cbody .label { margin-bottom: 26px; } .cbody .link { margin-top: 30px; }
.ticks { display: grid; }
.ticks li { position: relative; padding: 13px 0 13px 28px; border-top: 1px solid var(--rule); padding-inline: 28px 0; }
.ticks li::before { content: ""; position: absolute; inset-inline-start: 2px; top: 1.3em; width: 9px; height: 9px; background: currentColor; clip-path: polygon(0 0, 0 100%, 100% 50%); }
[dir="rtl"] .ticks li::before { clip-path: polygon(100% 0, 100% 100%, 0 50%); }
.cnext { border-top: 1px solid var(--rule); }
.cnext__a { display: block; padding-block: clamp(70px, 13vh, 170px); }
.cnext__a .display { margin-top: 22px; font-weight: 300; transition: font-weight .5s var(--ease); }
@media (hover: hover) { .cnext__a:hover .display { -webkit-text-stroke-width: .035em; } }
@media (max-width: 860px) { .cbody__grid { grid-template-columns: 1fr; } }

.svcs { padding-bottom: clamp(60px, 10vh, 130px); }
.svc { display: grid; grid-template-columns: 4em minmax(0, 6fr) minmax(0, 5fr); gap: clamp(20px, 4vw, 80px); padding-block: clamp(34px, 6vh, 72px); border-top: 1px solid var(--rule); }
.svc__n { font-family: var(--mono); font-size: .8rem; color: var(--mut); padding-top: .9em; }
.svc h2 { font-size: clamp(1.8rem, 3.6vw, 3.6rem); font-weight: 700; line-height: 1.02; letter-spacing: -.03em; text-wrap: balance; }
[dir="rtl"] .svc h2 { letter-spacing: 0; line-height: 1.35; }
.svc__main p { margin-top: 20px; font-size: 1.15rem; color: var(--mut); max-width: 32em; }
@media (max-width: 900px) { .svc { grid-template-columns: 1fr; gap: 18px; } .svc__n { padding: 0; } }
.proc { padding-bottom: clamp(84px, 14vh, 180px); }
.steps { display: grid; grid-template-columns: repeat(5, 1fr); counter-reset: s; }
.step { border-top: 1.5px solid #fff; padding: 18px 22px 0 0; position: relative; padding-inline: 0 22px; }
.step::before { content: ""; position: absolute; top: -6px; inset-inline-start: 0; width: 11px; height: 11px; background: #fff; clip-path: polygon(3px 0, 100% 0, 100% calc(100% - 3px), calc(100% - 3px) 100%, 0 100%, 0 3px); }
.step span { font-family: var(--mono); font-size: .75rem; color: var(--mut); }
.step h3 { font-size: var(--t-h3); font-weight: 700; margin: 26px 0 10px; } .step p { color: var(--mut); font-size: .98rem; }
@media (max-width: 1000px) { .steps { grid-template-columns: 1fr; } .step { padding-bottom: 26px; } .step h3 { margin-top: 10px; } }
.stack { margin-top: clamp(50px, 9vh, 110px); display: flex; gap: 30px; align-items: baseline; flex-wrap: wrap; border-top: 1px solid var(--rule); padding-top: 22px; }
.stack ul { display: flex; flex-wrap: wrap; gap: 8px 30px; font-size: clamp(1.1rem, 1.7vw, 1.6rem); font-weight: 300; }

.about { padding-bottom: clamp(80px, 13vh, 170px); }
.about__grid { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(30px, 5vw, 90px) clamp(36px, 6vw, 110px); }
.about__lead { grid-column: 1 / -1; font-size: clamp(1.5rem, 3.2vw, 3.2rem); font-weight: 300; line-height: 1.14; letter-spacing: -.02em; max-width: 24em; }
@media (max-width: 860px) { .about__grid { grid-template-columns: 1fr; } }

.ctc { padding-bottom: clamp(80px, 13vh, 170px); }
.ctc__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 110px); align-items: start; }
.ctc__big { display: inline-block; font-size: clamp(1.5rem, 3.1vw, 3rem); font-weight: 300; letter-spacing: -.02em; margin-bottom: clamp(30px, 6vh, 64px); border-bottom: 1.5px solid currentColor; padding-bottom: 6px; transition: font-weight .4s var(--ease); overflow-wrap: anywhere; }
@media (hover: hover) { .ctc__big:hover { -webkit-text-stroke-width: .04em; } }
.brief { background: var(--ink-2); padding: clamp(24px, 3.4vw, 52px); display: grid; grid-template-columns: 1fr 1fr; gap: 22px 26px; clip-path: polygon(26px 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%, 0 26px); }
.brief h2 { grid-column: 1 / -1; font-size: var(--t-h3); font-weight: 700; margin-bottom: 6px; }
.brief label { display: grid; gap: 8px; } .brief__wide { grid-column: 1 / -1; }
.brief label span { font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--mut); }
[dir="rtl"] .brief label span { letter-spacing: 0; font-size: .85rem; }
.brief input, .brief select, .brief textarea { background: transparent; border: 0; border-bottom: 1px solid rgba(255, 255, 255, .34); padding: 9px 0 11px; font-size: 1.08rem; border-radius: 0; width: 100%; outline: none; transition: border-color .3s; resize: vertical; }
.brief select option { color: #000; }
.brief input:focus, .brief select:focus, .brief textarea:focus { border-color: #fff; box-shadow: 0 1px 0 #fff; }
.brief .btn { justify-self: start; margin-top: 8px; }
.brief__note { grid-column: 1 / -1; font-size: .85rem; color: var(--mut); }
.brief__hp { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); opacity: 0; pointer-events: none; }
.brief__status { grid-column: 1 / -1; font-weight: 500; min-height: 1.6em; }
.brief__status.is-ok { padding: 14px 16px; background: #fff; color: var(--ink); }
.brief__status.is-err { padding: 14px 16px; border: 1.5px solid #fff; }
.brief .btn:disabled { opacity: .5; pointer-events: none; }
@media (max-width: 860px) { .ctc__grid, .brief { grid-template-columns: 1fr; } }
.nf { padding-bottom: 22vh; }

/* ---------- cursor */
.cursor { display: none; }
@media (hover: hover) and (pointer: fine) {
  .js .cursor { display: block; position: fixed; left: 0; top: 0; z-index: 1400; pointer-events: none; mix-blend-mode: difference; color: #fff; }
  .cursor i { position: absolute; left: -5px; top: -5px; width: 10px; height: 10px; background: #fff; clip-path: polygon(3px 0, 100% 0, 100% calc(100% - 3px), calc(100% - 3px) 100%, 0 100%, 0 3px); transition: transform .45s var(--ease); }
  .cursor span { position: absolute; left: 0; top: 0; transform-origin: 0 0; transform: translate(20px, 20px) scale(0); width: 84px; height: 84px; display: grid; place-items: center; text-align: center; background: #fff; color: #000; font-size: .78rem; font-weight: 600; line-height: 1.1; padding: 10px; clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px); transition: transform .5s var(--ease); }
  .cursor.is-link i { transform: scale(0); }
  .cursor.is-view i { transform: scale(0); } .cursor.is-view span { transform: translate(20px, 20px) scale(1); }
  .cursor.is-view { mix-blend-mode: normal; }
}

/* hover emphasis thickens the strokes without changing letter widths, so nothing reflows */
.reg__name, .wrow__t b, .cnext__a .display, .ctc__big { -webkit-text-stroke: 0 currentColor; transition: -webkit-text-stroke-width .4s var(--ease); }
.reg__name { display: block; transition: -webkit-text-stroke-width .4s var(--ease), transform .35s var(--ease); }

/* ---------- Arabic: index numbers sit at the outer edge of their cell, away from the text */
[dir="rtl"] .reg__n, [dir="rtl"] .wrow__n { text-align: right; }
[dir="rtl"] .metric b { text-align: right; }

/* ---------- page transitions + motion preferences */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: .32s var(--ease-io) both vt-out; }
::view-transition-new(root) { animation: .5s var(--ease) .12s both vt-in; }
@keyframes vt-out { to { opacity: 0; transform: translateY(-18px); } }
@keyframes vt-in { from { opacity: 0; transform: translateY(26px); } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .js [data-reveal] { opacity: 1; transform: none; } .js [data-split] { visibility: visible; } .js [data-words] .w { opacity: 1; }
  .js .intro { display: none !important; }
  @view-transition { navigation: none; }
}