/* Power Potential One — site.css
   Palette: ground + navy ink + one gold accent (with dark pair for text on light). */
@font-face{font-family:'Archivo';src:url('fonts/archivo-var-latin.woff2') format('woff2-variations'),url('fonts/archivo-var-latin.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Sans Arabic';src:url('fonts/ibm-plex-sans-arabic-arabic-400-normal.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap;unicode-range:U+0020,U+00A0,U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0898-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:'IBM Plex Sans Arabic';src:url('fonts/ibm-plex-sans-arabic-arabic-500-normal.woff2') format('woff2');font-weight:500 600;font-style:normal;font-display:swap;unicode-range:U+0020,U+00A0,U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0898-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:'IBM Plex Sans Arabic';src:url('fonts/ibm-plex-sans-arabic-arabic-700-normal.woff2') format('woff2');font-weight:700 900;font-style:normal;font-display:swap;unicode-range:U+0020,U+00A0,U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0898-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
:root{
  --ground:#EFEFEE;
  --stage:#E4E4E2;
  --ink:#0B2742;          /* brand navy, deepened */
  --ink-2:#3B4654;
  --muted:#575E68;
  --accent:#B08F4C;       /* brand gold: dots, rules, traces only */
  --accent-ink:#7A5D27;   /* dark pair: small text on light grounds */
  --accent-lift:#D4B77C;  /* lift on dark grounds */
  --hair:rgba(11,39,66,.13);
  --hair-d:rgba(239,239,238,.16);
  --ease:cubic-bezier(.16,1,.3,1);
  --nav:64px;
  --gut:clamp(16px,4vw,56px);
  --word:min(clamp(88px,20.5vw,304px),31svh);
  --f-display:'Archivo',system-ui,-apple-system,'Segoe UI',sans-serif;
  --f-mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{overflow-x:clip;-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--nav) + 12px)}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--f-display);font-size:17px;line-height:1.55;font-weight:400;overflow-x:clip;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.04em;line-height:.98}
.skip{position:absolute;top:8px;inset-inline-start:8px;z-index:100;background:var(--ink);color:var(--ground);padding:10px 16px;clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}
.skip:focus{clip-path:none;width:auto;height:auto;overflow:visible}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---------- type helpers ---------- */
.mono{font-family:var(--f-mono);font-size:11px;letter-spacing:.15em;text-transform:uppercase;font-weight:500;line-height:1.5}
.mono--s{font-size:10px}
.mono--m{font-size:12px}
.acc{color:var(--accent-ink)}
.dark .acc,.acc--lift{color:var(--accent-lift)}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);vertical-align:middle;margin-inline-end:10px;transform:translateY(-1px)}
.display{font-weight:800;letter-spacing:-.045em;line-height:.96;font-size:clamp(34px,5.1vw,74px)}
.display--m{font-size:clamp(30px,3.8vw,56px)}
.lede{max-width:38ch;color:var(--ink-2);font-size:clamp(16px,1.25vw,18px)}
.dark .lede{color:rgba(239,239,238,.78)}
.body-copy{max-width:62ch;color:var(--ink-2)}
.dark .body-copy{color:rgba(239,239,238,.78)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 22px;border-radius:999px;border:1px solid currentColor;font-family:var(--f-mono);font-size:11px;letter-spacing:.15em;text-transform:uppercase;font-weight:500;text-decoration:none;transition:background-color .35s var(--ease),color .35s var(--ease),border-color .35s var(--ease);white-space:nowrap;cursor:pointer;background:transparent;color:inherit}
.btn--solid{background:var(--ink);color:var(--ground);border-color:var(--ink)}
.btn--solid:hover{background:transparent;color:var(--ink)}
.btn:not(.btn--solid):hover{background:var(--ink);color:var(--ground);border-color:var(--ink)}
.dark .btn--solid{background:var(--ground);color:var(--ink);border-color:var(--ground)}
.dark .btn--solid:hover{background:transparent;color:var(--ground)}
.dark .btn:not(.btn--solid):hover{background:var(--ground);color:var(--ink);border-color:var(--ground)}
.btn .arr{font-family:var(--f-display);font-size:14px;letter-spacing:0}
.btns{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- navigation ---------- */
.nav{position:fixed;inset:0 0 auto 0;height:var(--nav);z-index:50;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 var(--gut);background:rgba(239,239,238,.82);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--hair)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-size:16px;letter-spacing:-.035em;white-space:nowrap}
.brand svg{width:30px;height:30px;flex-shrink:0}
.brand,.lang,.burger{flex-shrink:0}
.brand b{font-weight:800}
.brand i{font-style:normal;color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:clamp(14px,1.8vw,28px)}
.nav-links a{font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;border-bottom:1px solid transparent;padding:4px 0;transition:border-color .3s var(--ease);white-space:nowrap}
.nav-links a:hover,.nav-links a[aria-current="page"]{border-bottom-color:var(--accent)}
.nav-links .btn{height:38px;padding:0 18px;border-bottom:1px solid currentColor}
.nav-links .btn:hover{border-bottom-color:var(--ink)}
.burger{display:none;width:44px;height:44px;border:1px solid var(--hair);border-radius:999px;background:transparent;color:var(--ink);cursor:pointer;align-items:center;justify-content:center}
.burger span{display:block;width:16px;height:1px;background:currentColor;box-shadow:0 5px 0 currentColor,0 -5px 0 currentColor}
@media (min-width:1366px) and (max-width:1660px){.nav{gap:12px}.nav-links{gap:13px}.nav-links a{letter-spacing:.07em}.nav-links .btn{padding:0 14px}.lang{margin-inline-start:10px;padding-inline-start:10px}}
@media (min-width:1366px) and (max-width:1479px){.nav{gap:10px}.nav-links{gap:11px}.nav-links a{letter-spacing:.03em;font-size:10.5px}.nav-links .profs a.prof{letter-spacing:.03em;padding:6px 8px;gap:5px}.nav-links .btn{padding:0 12px}.lang{margin-inline-start:8px;padding-inline-start:8px}}
@media (max-width:1365px){
  .burger{display:inline-flex}
  .nav-links{position:fixed;top:var(--nav);left:0;right:0;flex-direction:column;align-items:flex-start;gap:0;padding:8px var(--gut) 24px;background:var(--ground);border-bottom:1px solid var(--hair);transform:translateY(-8px);visibility:hidden;opacity:0;transition:opacity .3s var(--ease),transform .3s var(--ease),visibility 0s .3s}
  .nav-links.open{visibility:visible;opacity:1;transform:none;transition:opacity .3s var(--ease),transform .3s var(--ease)}
  .nav-links a{display:block;width:100%;padding:16px 0;border-bottom:1px solid var(--hair);font-size:12px}
  .nav-links .btn{display:inline-flex;margin-top:18px;width:auto;border:1px solid currentColor;padding:0 22px;height:44px}
}

/* ---------- sections ---------- */
main{display:block}
.sec{position:relative;padding:clamp(72px,10vw,140px) var(--gut)}
.sec--stage{background:var(--stage)}
.sec--ink,.dark{background:var(--ink);color:var(--ground)}
.sec-meta{position:absolute;top:22px;left:var(--gut);right:var(--gut);display:flex;justify-content:space-between;gap:16px;color:var(--muted);pointer-events:none}
.dark .sec-meta{color:rgba(239,239,238,.55)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,96px);align-items:start;max-width:1440px;margin:0 auto}
.grid2--wide{grid-template-columns:1.05fr .95fr}
@media (max-width:900px){.grid2,.grid2--wide{grid-template-columns:1fr}}
.wrap{max-width:1440px;margin:0 auto}
.eyebrow{display:block;margin-bottom:22px;color:var(--muted)}
.dark .eyebrow{color:rgba(239,239,238,.6)}
.stack>*+*{margin-top:28px}

/* ---------- hero (home) ---------- */
.hero{position:relative;margin-top:var(--nav);min-height:calc(100svh - var(--nav));background:var(--stage);overflow:clip;isolation:isolate;display:flex;flex-direction:column;padding:clamp(28px,5vh,64px) var(--gut) calc(var(--word) * .66 + 28px)}
.hero-copy{position:relative;z-index:4;max-width:min(660px,50vw)}
.hero-copy .display{margin:16px 0 18px;font-size:clamp(34px,min(4.6vw,7.4svh),68px)}
.hero-copy .lede{margin-bottom:24px;max-width:54ch;font-size:clamp(15px,1.15vw,17px)}
.hero-spec{margin-top:24px;padding-top:14px;border-top:1px solid var(--hair);display:grid;gap:6px;color:var(--ink-2);max-width:440px}
.hero-spec span b{font-weight:500;color:var(--ink)}
.hero-corner{position:absolute;z-index:4;color:var(--muted)}
.hero-corner--bl{left:var(--gut);bottom:14px;color:var(--ink-2)}
.word{position:absolute;left:-2.5%;width:105%;bottom:0;display:flex;justify-content:space-between;font-size:var(--word);font-weight:900;line-height:.74;letter-spacing:-.055em;color:var(--ink);pointer-events:none;user-select:none;transform:translateY(calc(.10em + var(--wy,0px)))}
.word span{display:block}
.word--back{z-index:1}
.word--front{z-index:3}
.word .off{visibility:hidden}
.subject{position:absolute;z-index:2;right:-4vw;bottom:calc(var(--word) * .09);width:min(58vw,940px);filter:drop-shadow(0 26px 34px rgba(13,13,15,.20));transform:translateY(var(--sy,0px));pointer-events:none}
.subject img{width:100%;height:auto}
@media (max-width:760px){
  .hero{padding-bottom:calc(var(--word) * .66 + 54vw)}
  .hero-copy{max-width:100%}
  .subject{width:104vw;right:-14vw;bottom:calc(var(--word) * .20)}
}

/* ---------- entry page: two business lines ---------- */
.gw{position:relative;margin-top:var(--nav);display:flex;height:calc(100svh - var(--nav));min-height:500px}
.gw-h{position:absolute;z-index:4;top:clamp(14px,2.2vh,22px);left:50%;transform:translateX(-50%);margin:0;padding:6px 14px;border-radius:999px;background:var(--ground);color:var(--ink);border:1px solid var(--hair);white-space:nowrap;font-weight:500}
.gw-half{flex:1 1 0;min-width:0;position:relative;display:flex;flex-direction:column;gap:clamp(14px,2.4vh,24px);padding:clamp(56px,8vh,84px) var(--gut) clamp(28px,5vh,56px);text-decoration:none;overflow:clip;transition:flex-grow .8s var(--ease)}
.gw-a{background:var(--ground);color:var(--ink)}
.gw-b{background:var(--ink);color:var(--ground)}
.gw-half:hover,.gw-half:focus-visible{flex-grow:1.3}
.gw-half:focus-visible{outline-offset:-6px}
.gw-k{color:var(--muted)}
.gw-b .gw-k{color:rgba(239,239,238,.6)}
.gw-art{flex:1 1 0;min-height:60px;display:flex;align-items:center;justify-content:center;pointer-events:none}
.gw-art img,.gw-art svg{display:block;max-width:min(92%,640px);max-height:100%;width:100%;height:100%;object-fit:contain;transition:transform 1s var(--ease)}
.gw-art--a img{filter:drop-shadow(0 22px 28px rgba(13,13,15,.18))}
.gw-half:hover .gw-art img,.gw-half:hover .gw-art svg{transform:scale(1.04)}
.gw-b .sv{color:var(--ground)}
.gw-b .sv .bd{fill:var(--ink)}
.gw-body{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-start;gap:clamp(8px,1.6vh,14px);max-width:600px}
.gw-t{font-weight:900;font-size:clamp(34px,min(5.2vw,8.4vh),84px);letter-spacing:-.05em;line-height:.92}
.gw-p{max-width:46ch;color:var(--ink-2);font-size:clamp(15px,1.15vw,17px)}
.gw-b .gw-p{color:rgba(239,239,238,.78)}
.gw-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px 16px;color:var(--ink-2)}
.gw-b .gw-list{color:rgba(239,239,238,.72)}
.gw-list li::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-inline-end:8px;vertical-align:1px}
.gw-b .gw-list li::before{background:var(--accent-lift)}
.gw-btn{margin-top:6px;pointer-events:none}
.gw-a .gw-btn{background:var(--ink);color:var(--ground);border-color:var(--ink)}
.gw-b .gw-btn{background:var(--ground);color:var(--ink);border-color:var(--ground)}
@media (max-width:760px){
  .gw{flex-direction:column;height:auto;min-height:0}
  .gw-half{flex:0 0 auto;padding-top:64px}
  .gw-half:hover,.gw-half:focus-visible{flex-grow:1}
  .gw-art{flex:0 0 auto;height:26svh;min-height:120px}
  .gw-h{font-size:10px;white-space:normal;text-align:center;width:max-content;max-width:calc(100% - 32px)}
}
[lang="ar"] .gw-t{font-weight:700;letter-spacing:0;line-height:1.15}
[lang="ar"] .gw-h{font-family:var(--f-display)}

/* ---------- header: business-line switch ---------- */
.profs{display:inline-flex;align-items:center;gap:2px;padding:2px;border:1px solid var(--hair);border-radius:999px}
.nav-links .profs a.prof{display:inline-flex;align-items:center;gap:7px;padding:6px 11px;border-radius:999px;border-bottom:0;letter-spacing:.1em}
.prof i{display:inline-block;width:9px;height:9px;border-radius:2px;flex-shrink:0}
.prof--a i{background:var(--ground);box-shadow:inset 0 0 0 1px var(--ink)}
.prof--b i{background:var(--ink)}
.nav-links .profs a.prof:hover{background:rgba(11,39,66,.06)}
.nav-links .profs a.prof.is-on{background:var(--ink);color:var(--ground)}
.prof--b.is-on i{box-shadow:inset 0 0 0 1px var(--ground)}
@media (max-width:1365px){
  .nav-links .profs{display:flex;width:100%;margin:10px 0 6px;border-radius:14px}
  .nav-links .profs a.prof{flex:1;justify-content:center;padding:12px 10px;width:auto;border-radius:12px}
}

/* ---------- page head (inner pages) ---------- */
.phead{position:relative;margin-top:var(--nav);background:var(--stage);padding:clamp(56px,9vw,120px) var(--gut) 0;overflow:clip;isolation:isolate}
.phead .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,5vw,80px);align-items:end;padding-bottom:clamp(40px,6vw,72px)}
.phead h1{font-size:clamp(44px,7.2vw,112px);font-weight:900;letter-spacing:-.055em;line-height:.9;margin-top:18px}
.phead .lede{max-width:44ch}
.phead-word{font-size:min(clamp(64px,19.5vw,300px),calc((100vw - 2 * var(--gut) - 16px) / var(--fit,4.2)));font-weight:900;letter-spacing:-.055em;line-height:.74;white-space:nowrap;color:var(--ground);transform:translateY(.19em);margin:0 -.04em;pointer-events:none;user-select:none}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;color:var(--muted)}
.crumbs a{text-decoration:none;border-bottom:1px solid transparent}
.crumbs a:hover{border-bottom-color:var(--accent)}
@media (max-width:900px){.phead .wrap{grid-template-columns:1fr}}

/* ---------- hairline lists ---------- */
.rows{list-style:none;margin:0;padding:0;border-bottom:1px solid var(--hair)}
.dark .rows{border-color:var(--hair-d)}
.rows>li,.rows>div{display:grid;grid-template-columns:minmax(120px,.42fr) 1fr auto;gap:18px;align-items:baseline;padding:16px 0;border-top:1px solid var(--hair)}
.dark .rows>li,.dark .rows>div{border-color:var(--hair-d)}
.rows dt,.rows .k{color:var(--accent-ink)}
.dark .rows .k{color:var(--accent-lift)}
.rows .v{font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;font-variant-numeric:tabular-nums;text-align:end;color:var(--ink);white-space:nowrap}
.dark .rows .v{color:var(--ground)}
.rows p{margin:0;color:var(--ink-2)}
.dark .rows p{color:rgba(239,239,238,.78)}
.rows--2{grid-template-columns:1fr}
.rows--2>li{grid-template-columns:minmax(120px,.42fr) 1fr}
@media (max-width:620px){.rows>li,.rows>div{grid-template-columns:1fr auto}.rows>li>p,.rows>div>p{grid-column:1/-1}.rows--2>li{grid-template-columns:1fr}}

/* capability list (4 items) */
.caps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--hair)}
.dark .caps{border-color:var(--hair-d)}
.caps li{padding-block:22px 26px;padding-inline:0 22px;border-inline-end:1px solid var(--hair);display:flex;flex-direction:column;gap:46px}
.caps li+li{padding-inline-start:22px}
.caps li:last-child{border-inline-end:0}
.dark .caps li{border-color:var(--hair-d)}
.caps .n{color:var(--accent-ink)}
.dark .caps .n{color:var(--accent-lift)}
.caps h3,.caps h4{font-size:clamp(18px,1.6vw,24px);font-weight:800;letter-spacing:-.03em;line-height:1.05;text-transform:none}
@media (max-width:900px){.caps{grid-template-columns:1fr 1fr}.caps li{border-bottom:1px solid var(--hair)}.caps li:nth-child(2){border-inline-end:0}.caps li:nth-child(3){padding-inline-start:0}}
@media (max-width:520px){.caps{grid-template-columns:1fr}.caps li{border-inline-end:0;padding-inline-start:0!important;gap:18px}}

/* ---------- spec table ---------- */
.spec{display:grid;grid-template-columns:1fr 1fr;gap:0 clamp(32px,5vw,80px)}
.spec dl{margin:0}
.spec dl>div{display:flex;justify-content:space-between;align-items:baseline;gap:20px;padding:14px 0;border-top:1px solid var(--hair)}
.spec dl>div:last-child{border-bottom:1px solid var(--hair)}
.spec dt{color:var(--ink-2)}
.spec dd{margin:0;font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;font-variant-numeric:tabular-nums;text-align:end}
@media (max-width:800px){.spec{grid-template-columns:1fr}.spec dl:first-child>div:last-child{border-bottom:0}}

/* ---------- inverted proof ---------- */
.big{display:flex;align-items:baseline;gap:14px;margin:34px 0 26px}
.big b{font-size:clamp(56px,9vw,132px);font-weight:900;letter-spacing:-.05em;line-height:.8;font-variant-numeric:tabular-nums}
.legend{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:6px 24px;color:rgba(239,239,238,.72)}
.legend li::before{content:"";display:inline-block;width:14px;height:1px;background:var(--accent-lift);vertical-align:middle;margin-inline-end:10px}
.routes svg{width:100%;height:auto}

/* ---------- technical diagram ---------- */
.diagram svg{width:100%;height:auto;overflow:visible}
.diagram .draw{fill:none}
.js .diagram .draw{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);transition:stroke-dashoffset 2.2s var(--ease)}
.js .diagram.in .draw{stroke-dashoffset:0}
.diagram figcaption{margin-top:14px;color:var(--muted)}

/* ---------- scenes (sticky) ---------- */
.scene{position:relative;background:var(--ground)}
.scene--stage{background:var(--stage)}
.scene--ink{background:var(--ink);color:var(--ground)}
.scene .stage{position:relative;display:grid;grid-template-rows:auto minmax(0,1fr) auto;height:calc(100svh - var(--nav));min-height:440px;padding:20px var(--gut) 18px;overflow:clip}
.js .scene{height:var(--len,320vh)}
.js .scene .stage{position:sticky;top:var(--nav)}
.hud{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;position:relative;z-index:3}
.hud--b{align-items:flex-end}
.hud h2{font-size:clamp(22px,2.6vw,38px);font-weight:800;letter-spacing:-.04em;line-height:1}
.hud .k{color:var(--muted);display:block;margin-bottom:8px}
.scene--ink .hud .k{color:rgba(239,239,238,.58)}
.term{display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:4px 8px;max-width:62%;color:var(--muted);text-align:end}
.scene--ink .term{color:rgba(239,239,238,.42)}
.term .ph{transition:color .3s}
.term .ph.on{color:var(--ink)}
.term .ph.done{color:var(--ink-2)}
.scene--ink .term .ph.on{color:var(--ground)}
.scene--ink .term .ph.done{color:rgba(239,239,238,.72)}
.term .ph.on::before{content:"▸ ";color:var(--accent)}
.term .sep{color:var(--accent)}
.readout{font-family:var(--f-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;font-variant-numeric:tabular-nums;text-align:end;white-space:nowrap}
.readout .cur{display:inline-block;width:.6em;height:1em;background:var(--accent);vertical-align:-2px;margin-inline-start:6px;animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{visibility:hidden}}
.art{position:relative;min-height:0;margin:14px 0}
.art>svg{position:absolute;inset:0;width:100%;height:100%}
.scene .note{color:var(--muted);max-width:52ch}
.scene--ink .note{color:rgba(239,239,238,.58)}
@media (max-width:760px){
  .hud{flex-direction:column;gap:10px}
  .term{max-width:100%;justify-content:flex-start;text-align:start}
  .hud--b{flex-direction:row;align-items:flex-end}
  .readout{white-space:normal;font-size:11px}
  .scene .note{display:none}
}

/* valve counter-travel stage */
.marquee{position:absolute;left:0;top:50%;z-index:1;white-space:nowrap;font-size:clamp(78px,17vw,250px);font-weight:900;letter-spacing:-.055em;line-height:.8;color:rgba(11,39,66,.14);transform:translate(var(--mx,0px),-50%);pointer-events:none;user-select:none}
.wheel{position:absolute;z-index:2;left:50%;top:50%;width:min(56vw,600px,calc(100svh - var(--nav) - 230px));aspect-ratio:1;transform:translate(-50%,-50%)}
.wheel svg{position:absolute;inset:0;width:100%;height:100%}
.wheel .rot{transform:rotate(var(--rot,0deg));filter:drop-shadow(0 22px 28px rgba(13,13,15,.18))}
.wheel .light{pointer-events:none}
.gate{position:absolute;z-index:3;inset-inline-end:0;top:50%;transform:translateY(-50%);width:68px;display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--muted)}
.gate .bar{position:relative;width:2px;height:min(260px,40svh);background:var(--hair)}
.gate .bar i{position:absolute;left:-3px;right:-3px;bottom:0;height:var(--open,0%);background:var(--accent)}
@media (max-width:760px){.gate{display:none}}

/* ---------- scene line art ---------- */
.sv{color:var(--ink);font-family:var(--f-mono)}
.scene--ink .sv{color:var(--ground)}
.sv .ln{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round;vector-effect:non-scaling-stroke}
.sv .ln2{fill:none;stroke:currentColor;stroke-width:2.6;stroke-linejoin:round;stroke-linecap:round;vector-effect:non-scaling-stroke}
.sv .hl{fill:none;stroke:currentColor;stroke-opacity:.32;stroke-width:1;vector-effect:non-scaling-stroke}
.sv .bd{fill:var(--ground);stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;vector-effect:non-scaling-stroke}
.scene--stage .sv .bd{fill:var(--stage)}
.scene--ink .sv .bd{fill:var(--ink)}
.sv .sd{fill:currentColor;fill-opacity:.08}
.sv .liq{fill:currentColor;fill-opacity:.2;stroke:none}
.sv .solid{fill:currentColor;stroke:none}
.sv .ac{stroke:var(--accent);fill:none;stroke-width:2.4;vector-effect:non-scaling-stroke;stroke-linecap:round}
.sv .acf{fill:var(--accent);stroke:none}
.js .sv .trace{stroke-dasharray:1;stroke-dashoffset:1}
.sv text{fill:currentColor;font-size:13px;letter-spacing:.14em;text-transform:uppercase}
.sv .lab{fill:var(--muted)}
.scene--ink .sv .lab{fill:rgba(239,239,238,.5)}
.sv .t-s{font-size:11px}
.sv .t-b{font-size:15px;font-weight:500}
.sv [data-el^="slot-"] .nm,.sv [data-st] .nm,.sv [data-wp] .nm{fill:var(--muted);transition:fill .4s}
.sv [data-el^="slot-"].on .nm,.sv [data-st].on .nm,.sv [data-wp].on .nm{fill:currentColor}
.sv [data-wp] .node{fill:var(--ground);stroke:currentColor;stroke-width:1.6;vector-effect:non-scaling-stroke;transition:fill .4s}
.sv [data-wp].on .node{fill:var(--accent);stroke:var(--accent)}
.sv [data-st] .pin{fill:var(--ground);stroke:currentColor;stroke-width:1.6;vector-effect:non-scaling-stroke}
.sv [data-st].on .pin{fill:var(--accent);stroke:var(--accent)}
.sv [data-ct] .nm{fill:var(--muted);transition:fill .4s}
.sv [data-ct].on .nm{fill:currentColor}
.js .sv [data-ct]:not(.on) .bd{stroke-dasharray:3 3}
.sv [data-gt]{transition:opacity .5s var(--ease)}
.js .sv [data-gt]:not(.on){opacity:0}
.sv [data-tray]{stroke:currentColor;stroke-opacity:.35;stroke-width:1;vector-effect:non-scaling-stroke;transition:stroke .3s,stroke-opacity .3s}
.sv [data-tray].on{stroke:var(--accent);stroke-opacity:1}

/* ---------- field-swap picker ---------- */
.picker{background:var(--pg,#EFEFEE);color:var(--pi,#0B2742);transition:background-color .7s var(--ease),color .7s var(--ease)}
.picker .soft{color:var(--pis,#3B4654);transition:color .7s var(--ease)}
.picker .faint{color:var(--pif,#636B76);transition:color .7s var(--ease)}
.pills{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 0}
.pill{height:40px;padding:0 18px;border-radius:999px;border:1px solid var(--pil,rgba(11,39,66,.34));background:transparent;color:inherit;font-family:var(--f-mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;cursor:pointer;transition:border-color .3s,background-color .3s,color .3s}
.pill:hover{border-color:currentColor}
.pill[aria-pressed="true"]{border-color:currentColor;box-shadow:inset 0 0 0 1px currentColor}
.pick-title{font-size:clamp(34px,5.4vw,84px);font-weight:900;letter-spacing:-.05em;line-height:.92;margin:48px 0 20px;max-width:16ch}
.pick-lede{max-width:66ch;font-size:clamp(16px,1.3vw,19px)}
.panel{display:grid;grid-template-columns:repeat(3,1fr);margin-top:40px;border-top:1px solid var(--plh,rgba(11,39,66,.24));border-bottom:1px solid var(--plh,rgba(11,39,66,.24));transition:border-color .7s var(--ease)}
.panel>div{padding-block:20px 24px;padding-inline:0 22px}
.panel>div+div{padding-inline-start:22px;border-inline-start:1px solid var(--plh,rgba(11,39,66,.24));transition:border-color .7s var(--ease)}
.panel .mono{display:block;margin-bottom:12px}
.panel p{margin:0}
@media (max-width:800px){.panel{grid-template-columns:1fr}.panel>div+div{padding-inline-start:0;border-inline-start:0;border-top:1px solid var(--plh,rgba(11,39,66,.24))}}

/* ---------- category articles ---------- */
.cats{list-style:none;margin:0;padding:0;counter-reset:c}
.cat{display:grid;grid-template-columns:110px 1fr 1.2fr;gap:clamp(20px,4vw,64px);padding:clamp(28px,4vw,48px) 0;border-top:1px solid var(--hair)}
.cat:last-child{border-bottom:1px solid var(--hair)}
.cat .n{color:var(--accent-ink)}
.cat h2{font-size:clamp(26px,3vw,44px);font-weight:800;letter-spacing:-.045em;line-height:.98}
.cat .tags{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:18px;color:var(--muted)}
@media (max-width:900px){.cat{grid-template-columns:1fr}}

/* ---------- contract terms ---------- */
.terms{counter-reset:t;list-style:none;margin:0;padding:0}
.terms li{display:grid;grid-template-columns:64px 1fr;gap:18px;padding:22px 0;border-top:1px solid var(--hair)}
.terms li:last-child{border-bottom:1px solid var(--hair)}
.terms h3{font-size:clamp(20px,1.9vw,28px);letter-spacing:-.035em;margin-bottom:8px}
.terms p{margin:0;color:var(--ink-2)}

/* ---------- certificates ---------- */
.cert{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:clamp(32px,6vw,96px);align-items:start}
.cert-doc{margin:0;position:sticky;top:calc(var(--nav) + 24px)}
.cert-doc a{display:block;border:1px solid var(--hair);background:#fff;box-shadow:0 24px 48px -28px rgba(13,13,15,.35);transition:transform .6s var(--ease)}
.cert-doc a:hover{transform:translateY(-4px)}
.cert-doc img{width:100%;height:auto}
.cert-doc figcaption{margin-top:12px;color:var(--muted)}
.cert-status{display:inline-flex;align-items:center;gap:10px;margin:26px 0 0;padding:8px 14px;border:1px solid var(--hair);border-radius:999px}
.cert-status b{font-weight:500;color:var(--ink)}
.cert-status::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.cert-status[data-state="expired"]::before{background:var(--muted)}
.cert-status .faint{color:var(--muted)}
.cert-dl{margin:28px 0 30px}
.cert-dl>div{display:grid;grid-template-columns:minmax(140px,.42fr) 1fr;gap:18px;padding:13px 0;border-top:1px solid var(--hair)}
.cert-dl>div:last-child{border-bottom:1px solid var(--hair)}
.cert-dl dt{color:var(--muted);font-family:var(--f-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;padding-top:3px}
.cert-dl dd{margin:0;color:var(--ink);overflow-wrap:anywhere}
.cert-note{margin-top:18px;color:var(--muted);max-width:60ch}
[lang="ar"] .cert-dl dt{letter-spacing:0;text-transform:none;font-size:13px}
@media (max-width:900px){.cert{grid-template-columns:1fr}.cert-doc{position:static;max-width:520px}}
@media (max-width:520px){.cert-dl>div{grid-template-columns:1fr;gap:4px}}

/* ---------- contact ---------- */
.addr{font-style:normal;font-size:clamp(20px,2vw,28px);font-weight:700;letter-spacing:-.03em;line-height:1.2}
.map{position:relative;aspect-ratio:4/3;border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);background:var(--stage)}
.map iframe{position:absolute;inset:0;width:100%;height:100%;border:0;filter:grayscale(1) contrast(1.05)}
.map .mapbtn{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:24px;color:var(--ink-2)}
.form{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}
.field{display:flex;flex-direction:column;gap:6px;padding:16px 0;border-top:1px solid var(--hair)}
.field--full{grid-column:1/-1}
.field label{color:var(--muted)}
.field input,.field select,.field textarea{font:inherit;color:var(--ink);background:transparent;border:0;border-bottom:1px solid transparent;padding:6px 0;border-radius:0;outline:none;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{border-bottom-color:var(--accent)}
.field textarea{min-height:120px;resize:vertical}
.form .hp{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.form-foot{grid-column:1/-1;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding-top:22px;border-top:1px solid var(--hair)}
.form-msg{min-height:1.5em;color:var(--accent-ink)}
@media (max-width:700px){.form{grid-template-columns:1fr}}

/* ---------- close + footer ---------- */
.close{background:var(--ground);padding:clamp(72px,10vw,140px) var(--gut) 28px;overflow:clip}
.close-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:32px;max-width:1440px;margin:0 auto}
.close-top h2{font-size:clamp(40px,6.4vw,100px);font-weight:900;letter-spacing:-.055em;line-height:.9}
.close-top .mono{margin-top:18px;color:var(--muted)}
.foot{max-width:1440px;margin:clamp(56px,7vw,96px) auto 0;display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px;padding-top:24px;border-top:1px solid var(--hair)}
.foot p,.foot address{margin:0;font-style:normal;color:var(--ink-2);font-size:15px}
.foot .mono{display:block;margin-bottom:10px;color:var(--muted)}
.foot nav a{display:block;text-decoration:none;font-size:15px;color:var(--ink-2);padding:2px 0}
.foot nav a:hover{color:var(--ink)}
.strip{max-width:1440px;margin:36px auto 0;display:flex;flex-wrap:wrap;gap:12px 28px;padding:14px 0;border-top:1px solid var(--hair);color:var(--muted)}
.strip>:last-child{margin-inline-start:auto}
@media (max-width:900px){.foot{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.foot{grid-template-columns:1fr}.strip>:last-child{margin-inline-start:0}}

/* ---------- 404 ---------- */
.nf{min-height:calc(100svh - var(--nav));margin-top:var(--nav);display:flex;flex-direction:column;justify-content:center;padding:var(--gut);background:var(--stage)}
.nf b{font-size:clamp(120px,30vw,420px);font-weight:900;letter-spacing:-.06em;line-height:.8}


/* ---------- language switcher (last item of the header row) ---------- */
.lang{display:flex;align-items:center;gap:2px;margin-inline-start:clamp(10px,1.4vw,20px);padding-inline-start:clamp(10px,1.4vw,20px);border-inline-start:1px solid var(--hair)}
.lang a{font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;text-decoration:none;padding:6px 8px;border-radius:999px;color:var(--ink-2);white-space:nowrap}
.lang a[lang="ar"]{font-family:'IBM Plex Sans Arabic',var(--f-mono);font-size:13px;letter-spacing:0}
.lang a:hover{color:var(--ink)}
.lang a[aria-current="true"]{color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
.nav{gap:16px}
.nav-links{margin-inline-start:auto}
@media (max-width:1365px){.lang{margin-inline-start:auto;border:0;padding:0}.lang+.burger{margin-inline-start:4px}}
@media (max-width:560px){.nav{gap:10px}.brand{font-size:14px;gap:8px}.brand svg{width:26px;height:26px}.lang a[aria-current="true"]{display:none}.lang a{padding:6px 4px}}
@media (max-width:340px){.brand{font-size:12.5px}.brand svg{width:22px;height:22px}}

/* ---------- Arabic / RTL ---------- */
:root[lang="ar"]{--f-display:'IBM Plex Sans Arabic','Archivo',system-ui,sans-serif;--f-mono:'IBM Plex Sans Arabic','IBM Plex Mono',ui-monospace,monospace}
[lang="ar"] body{font-size:17.5px;line-height:1.8}
/* Arabic letters must never be tracked apart or forced to caps */
[lang="ar"] h1,[lang="ar"] h2,[lang="ar"] h3,[lang="ar"] .display,[lang="ar"] .mono,[lang="ar"] .btn,[lang="ar"] .pill,[lang="ar"] .readout,
[lang="ar"] .nav-links a,[lang="ar"] .caps h3,[lang="ar"] .pick-title,[lang="ar"] .close-top h2,[lang="ar"] .phead h1,[lang="ar"] .hud h2,[lang="ar"] .big b,
[lang="ar"] .sv text,[lang="ar"] svg text{letter-spacing:0!important;text-transform:none}
[lang="ar"] .mono{font-size:12.5px;line-height:1.7}
[lang="ar"] .mono--s{font-size:12px}
[lang="ar"] .nav-links a{font-size:13px}
[lang="ar"] .btn{font-size:13px}
[lang="ar"] .readout{font-size:13px}
[lang="ar"] .display,[lang="ar"] h1,[lang="ar"] h2,[lang="ar"] h3{font-weight:700;line-height:1.25}
[lang="ar"] .hero-copy .display{line-height:1.2}
[lang="ar"] .phead h1{line-height:1.15;font-weight:700}
[lang="ar"] .close-top h2{line-height:1.15;font-weight:700}
[lang="ar"] .pick-title{line-height:1.2;font-weight:700}
[lang="ar"] .cat h2,[lang="ar"] .terms h3,[lang="ar"] .caps h3{line-height:1.35}
[lang="ar"] .lede,[lang="ar"] .body-copy{line-height:1.9}
[lang="ar"] .phead-word{font-weight:700;letter-spacing:0;line-height:1;transform:translateY(.16em)}
/* Latin brand words, the marquee and drawings keep left-to-right geometry */
.word,.marquee,.brand,.sv,.diagram svg,.routes svg,.wheel{direction:ltr}
[lang="ar"] .marquee{font-family:'IBM Plex Sans Arabic',sans-serif;font-weight:700;letter-spacing:0;line-height:1.1}
[lang="ar"] .word{font-family:'Archivo',sans-serif}
/* hero mirrored: copy on the right, valve bottom-left (mirror image), letter O in front */
[dir="rtl"] .subject{right:auto;left:-4vw;transform:translateY(var(--sy,0px)) scaleX(-1)}
@media (max-width:760px){[dir="rtl"] .subject{right:auto;left:-14vw}}
[dir="rtl"] .sec-meta,[dir="rtl"] .strip{direction:rtl}
[dir="rtl"] input[type="email"],[dir="rtl"] input[type="tel"]{text-align:right}

/* ---------- reveal (opt-in) ---------- */
.js .rv{opacity:0;transform:translateY(22px);transition:opacity 1s var(--ease),transform 1.1s var(--ease)}
.js .rv.in{opacity:1;transform:none}
.js .hero .word,.js .hero .subject{opacity:0;transition:opacity 1.2s var(--ease)}
.js .hero.in .word,.js .hero.in .subject{opacity:1}
.js .hero .subject{transition:opacity 1.25s var(--ease) .15s}

@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.readout .cur{animation:none}}
@media print{.nav,.burger{display:none}.hero,.phead{margin-top:0}}