/* ==========================================================================
   Joudi Alkhrbotli — portfolio styles
   Sections: tokens · base · header · hero · stats · sections · work
             case study · diagrams · charts · timeline · contact · a11y · responsive
   ========================================================================== */

/* ---------- tokens ---------- */
:root{
  --bg:#F3F3EF; --bg2:#E6E6E0; --surface:#FFFFFF; --line:#D7D6CD; --line2:#B4B3A8;
  --ink:#0F1114; --ink2:#383C42; --muted:#646870;
  --accent:#1B4A96; --accent-soft:rgba(27,74,150,.10); --bar:#7E838C;
  --shadow:0 1px 2px rgba(10,12,14,.06),0 10px 40px rgba(10,12,14,.10);
  --shadow-lg:0 2px 6px rgba(10,12,14,.07),0 30px 80px rgba(10,12,14,.16);
  --maxw:1180px; --radius:10px;
}
:root[data-theme="dark"]{
  --bg:#101215; --bg2:#171A1E; --surface:#1B1E22; --line:#282C31; --line2:#3A3F46;
  --ink:#EDEFF2; --ink2:#C4C8CE; --muted:#878C94;
  --accent:#82A9E6; --accent-soft:rgba(130,169,230,.13); --bar:#6B727D;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 40px rgba(0,0,0,.4);
  --shadow-lg:0 2px 6px rgba(0,0,0,.5),0 30px 80px rgba(0,0,0,.55);
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body[dir="rtl"]{font-family:"IBM Plex Sans Arabic","Inter",system-ui,sans-serif;line-height:1.85}
body.locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;font-weight:600;
  letter-spacing:-.028em;line-height:1.14;margin:0}
body[dir="rtl"] h1,body[dir="rtl"] h2,body[dir="rtl"] h3,body[dir="rtl"] h4{
  font-family:"IBM Plex Sans Arabic",system-ui,sans-serif;letter-spacing:-.005em;line-height:1.38}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.eyebrow{font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
body[dir="rtl"] .eyebrow{letter-spacing:.04em}
.rule{height:1px;background:var(--line);border:0;margin:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;inset-inline-start:14px;top:-60px;z-index:200;background:var(--ink);color:var(--bg);
  padding:11px 18px;border-radius:8px;font-size:14px;transition:top .2s}
.skip:focus{top:14px}

/* visible, consistent focus */
:where(a,button,[tabindex]):focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;inset-inline:0;z-index:60;padding:18px 0;
  border-bottom:1px solid transparent;transition:background .3s,border-color .3s,padding .3s}
.site-header.stuck{background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(14px);
  border-bottom-color:var(--line);padding:11px 0}
.hrow{display:flex;align-items:center;justify-content:space-between;gap:18px}
.mark{font-size:16px;font-weight:700;letter-spacing:-.02em;white-space:nowrap;text-decoration:none}
.mark small{display:block;font-size:11px;font-weight:450;color:var(--muted);letter-spacing:.04em;margin-top:1px}
.site-nav{display:flex;gap:24px}
.site-nav a{font-size:13.5px;color:var(--muted);text-decoration:none;transition:color .2s;position:relative}
.site-nav a:hover,.site-nav a:focus-visible{color:var(--ink)}
.site-nav a::after{content:"";position:absolute;bottom:-3px;inset-inline:0;height:1px;background:var(--accent);
  transform:scaleX(0);transition:transform .25s;transform-origin:inline-start}
.site-nav a:hover::after{transform:scaleX(1)}
.hbtns{display:flex;gap:7px;align-items:center}
.icb{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;
  font-size:12px;transition:background .2s,border-color .2s}
.icb:hover{background:var(--bg2);border-color:var(--line2)}
.icb.lang{width:auto;padding:0 13px;font-size:12.5px;font-weight:500;border-radius:999px}
.btn-cv{display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;
  border:1px solid var(--ink);background:var(--ink);color:var(--bg);font-size:13px;font-weight:500;
  text-decoration:none;white-space:nowrap;transition:opacity .2s,transform .2s}
.btn-cv:hover{opacity:.88;transform:translateY(-1px)}
.btn-cv svg{width:14px;height:14px;flex:0 0 auto}
.navtoggle{display:none}

/* ---------- hero ---------- */
.hero{padding:150px 0 80px}
.hgrid{display:grid;grid-template-columns:1.25fr .95fr;gap:60px;align-items:center}
.hero h1{font-size:clamp(38px,5.2vw,64px);margin:16px 0 0}
.hero h1 em{font-style:normal;color:var(--accent);font-weight:600}
.lead{font-size:clamp(16px,1.3vw,18.5px);color:var(--ink2);max-width:56ch;margin:22px 0 0}
.hero-cta{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 22px;border-radius:999px;
  font-size:14px;font-weight:500;text-decoration:none;border:1px solid var(--ink);
  background:var(--ink);color:var(--bg);transition:transform .2s,opacity .2s}
.btn:hover{transform:translateY(-2px);opacity:.9}
.btn.ghost{background:none;color:var(--ink);border-color:var(--line2)}
.btn.ghost:hover{background:var(--bg2)}
.btn .ar{transition:transform .25s}
.btn:hover .ar{transform:translateX(3px)}
body[dir="rtl"] .btn .ar{transform:scaleX(-1)}
body[dir="rtl"] .btn:hover .ar{transform:scaleX(-1) translateX(3px)}

/* ---------- shared pulse (live dots in panels) ---------- */
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(111,168,255,.55)}70%,100%{box-shadow:0 0 0 8px transparent}}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:64px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:26px 24px;border-inline-end:1px solid var(--line)}
.stat:last-child{border-inline-end:0}
.stat b{display:block;font-weight:600;font-size:33px;line-height:1;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums}
body[dir="rtl"] .stat b{direction:ltr;unicode-bidi:isolate;text-align:right}
.stat span{display:block;font-size:12.5px;color:var(--muted);margin-top:9px;line-height:1.45}

/* ---------- sections ---------- */
section{padding:92px 0}
.shead{display:flex;align-items:baseline;justify-content:space-between;gap:24px;margin-bottom:40px}
.shead h2{font-size:clamp(26px,3vw,38px)}
.shead p{color:var(--muted);font-size:14px;margin:0;max-width:36ch;text-align:end}

/* ---------- work ---------- */
.proj{display:grid;grid-template-columns:1.02fr 1fr;gap:52px;align-items:center;
  padding:48px 0;border-top:1px solid var(--line);cursor:pointer;width:100%;text-align:start}
.proj:last-of-type{border-bottom:1px solid var(--line)}
.proj.flip .pimg{order:2}
.pimg{aspect-ratio:2.14/1;border-radius:6px;overflow:hidden;position:relative;
  box-shadow:var(--shadow);transition:transform .5s cubic-bezier(.22,1,.36,1),box-shadow .5s}
.proj:hover .pimg,.proj:focus-visible .pimg{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.pnum{font-size:12px;color:var(--muted);letter-spacing:.14em;font-weight:600}
body[dir="rtl"] .pnum{direction:ltr;text-align:right}
.proj h3{font-size:clamp(23px,2.4vw,31px);margin:12px 0 0}
.pmeta{font-size:13px;color:var(--muted);margin-top:10px}
.pdesc{color:var(--ink2);margin:16px 0 0;font-size:15.5px;max-width:46ch}
.ptags{display:flex;flex-wrap:wrap;gap:7px;margin-top:20px}
body[dir="rtl"] .ptags{direction:ltr;justify-content:flex-end}
.tag{font-size:11.5px;padding:5px 11px;border-radius:999px;border:1px solid var(--line);
  color:var(--muted);white-space:nowrap}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;padding:5px 10px;border-radius:999px;
  border:1px solid var(--accent);color:var(--accent);background:var(--accent-soft)}
body[dir="rtl"] .badge{letter-spacing:.02em}
.badge.dim{border-color:var(--line2);color:var(--muted);background:none}
.plink{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:14px;
  font-weight:500;color:var(--accent)}
.plink .ar{transition:transform .25s}
.proj:hover .plink .ar{transform:translateX(4px)}
body[dir="rtl"] .plink .ar{transform:scaleX(-1)}
body[dir="rtl"] .proj:hover .plink .ar{transform:scaleX(-1) translateX(4px)}

/* compact cards (research / internal) */
.mini{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;background:var(--line);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mcard{background:var(--bg);padding:30px 30px 26px;text-align:start;width:100%;
  transition:background .25s;display:flex;flex-direction:column;gap:10px}
.mcard:hover{background:var(--bg2)}
.mcard .badge{align-self:flex-start}
.mcard h4{font-size:19px}
.mcard p{margin:0;font-size:14.5px;color:var(--ink2)}
.mcard .plink{margin-top:auto;padding-top:12px}

.other{margin-top:46px;display:grid;grid-template-columns:repeat(2,1fr);gap:2px;background:var(--line)}
.oth{background:var(--bg);padding:26px 28px}
.oth h4{margin:0;font-size:16px}
.oth .y{font-size:12px;color:var(--muted);margin-top:5px}
.oth p{margin:11px 0 0;font-size:14px;color:var(--ink2)}
.othh{font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  margin:46px 0 -30px}
body[dir="rtl"] .othh{letter-spacing:.04em}

/* ---------- screenshots ---------- */
.shot{margin:0;width:100%;height:100%;position:relative;background:var(--bg2);overflow:hidden;
  display:grid;place-items:center;padding:14px}
.frame{max-width:100%;max-height:100%;min-height:0;display:flex;flex-direction:column;
  border:1px solid var(--line2);border-radius:7px;overflow:hidden;background:var(--surface);
  box-shadow:0 1px 3px rgba(0,0,0,.09),0 14px 40px rgba(0,0,0,.11)}
.frame .fbar{height:26px;flex:0 0 auto;background:var(--bg2);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:5px;padding:0 10px}
.frame .fbar i{width:7px;height:7px;border-radius:50%;background:var(--line2);display:block}
.frame img{display:block;max-width:100%;max-height:100%;min-height:0;object-fit:contain}
.frame img.d{display:none}
:root[data-theme="dark"] .frame img.l{display:none}
:root[data-theme="dark"] .frame img.d{display:block}
.pimg .frame{width:100%;height:100%}
.pimg .frame img{width:100%;height:100%;object-fit:cover;object-position:top center}
.csfig{margin:40px 0}
.csfig .shot{padding:26px}
.csfig .shot img{height:auto}
.figcap{font-size:12px;color:var(--muted);margin:10px 0 0}

/* ---------- research ---------- */
.rlead{font-size:18px;color:var(--ink);font-weight:500;max-width:62ch;margin:0 0 34px;
  line-height:1.55;letter-spacing:-.015em}
body[dir="rtl"] .rlead{line-height:1.75}
.rgrid{display:grid;grid-template-columns:1.15fr .85fr;gap:2px;background:var(--line);
  border:1px solid var(--line);border-radius:10px;overflow:hidden}
.rmain,.rside{background:var(--bg);padding:30px}
.rmain h3{font-size:20px;margin:0 0 16px}
.rmain ul{margin:0 0 24px;padding-inline-start:19px;color:var(--ink2);font-size:14.5px}
.rmain li{margin-bottom:8px}
.rside h4{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  font-weight:600;margin:0 0 14px}
body[dir="rtl"] .rside h4{letter-spacing:.02em}
.rside h4:nth-of-type(2){margin-top:28px}
.rside ul{margin:0;padding-inline-start:19px;color:var(--ink2);font-size:14px}
.rnone{margin:0;font-size:13.5px;color:var(--muted)}
.muted{color:var(--muted)}
@media(max-width:900px){.rgrid{grid-template-columns:1fr}}

/* ---------- status pill & placeholders ---------- */
.pill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:500;
  padding:3px 11px 3px 8px;border-radius:999px;border:1px solid var(--line2);color:var(--ink2)}
.pill::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
.phbox{width:100%;min-height:180px;display:grid;place-content:center;gap:9px;text-align:center;
  padding:28px;border:1px dashed var(--line2);border-radius:8px;background:var(--bg2)}
.phbox span{font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
body[dir="rtl"] .phbox span{letter-spacing:.02em}
.phbox b{font-size:14px;font-weight:500;color:var(--ink2);max-width:38ch;line-height:1.5}
.csfig.ph{margin:20px 0}
.pnum .badge{margin-inline-start:12px;vertical-align:2px}

/* ---------- about & skills ---------- */
.abody{columns:2;column-gap:56px;max-width:980px}
.abody p{margin:0 0 18px;color:var(--ink2);font-size:16px;break-inside:avoid}
.abody p:first-child{font-size:18.5px;color:var(--ink);font-weight:500;line-height:1.55;letter-spacing:-.015em}
body[dir="rtl"] .abody p:first-child{line-height:1.75}
.skills{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:2px;background:var(--line)}
.sk{background:var(--bg);padding:28px 26px}
.sk h3{margin:0 0 14px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-weight:600}
body[dir="rtl"] .sk h3{letter-spacing:.02em}
.sk ul{margin:0;padding:0;list-style:none}
.sk li{font-size:14px;color:var(--ink2);padding:6px 0;border-bottom:1px dotted var(--line)}
.sk li:last-child{border-bottom:0}

/* ---------- timeline ---------- */
.tl{border-top:1px solid var(--line)}
.row{position:relative;overflow:hidden;display:grid;grid-template-columns:200px 1fr;gap:40px;
  padding:34px 0;border-bottom:1px solid var(--line);transition:background .3s}
.row:hover{background:var(--bg2)}
.rmark{position:absolute;inset-block:0;inset-inline-end:10px;display:flex;align-items:center;gap:26px;
  pointer-events:none;z-index:0}
.rmark img{height:130px;width:auto;max-width:160px;object-fit:contain;filter:grayscale(1);opacity:.07;
  transition:opacity .5s cubic-bezier(.22,1,.36,1),transform .5s cubic-bezier(.22,1,.36,1)}
.row:hover .rmark img{opacity:.17;transform:scale(1.05)}
.row>.when,.row>div{position:relative;z-index:1}
.row .when{font-size:13px;color:var(--muted);padding-top:6px}
.rhead{display:flex;gap:15px;align-items:center}
.rlogos{display:flex;gap:7px;flex:0 0 auto}
.rlogo{width:60px;height:60px;border:1px solid var(--line);border-radius:14px;background:#FBFBF9;
  display:grid;place-items:center;padding:7px;overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.04);
  transition:transform .35s cubic-bezier(.22,1,.36,1),box-shadow .35s,border-color .35s}
.row:hover .rlogo{transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.09);border-color:var(--line2)}
.rlogo img{max-width:100%;max-height:100%;object-fit:contain;filter:grayscale(1);opacity:.85;transition:.3s}
.row:hover .rlogo img{filter:none;opacity:1}
/* dark mode: logos are transparent PNG-style webp, so the tile stays dark and the
   artwork is inverted to read as light-on-dark instead of a bright white square */
:root[data-theme="dark"] .rlogo{background:rgba(255,255,255,.05);box-shadow:none}
:root[data-theme="dark"] .rlogo img{filter:grayscale(1) invert(1) brightness(1.06);opacity:.78}
:root[data-theme="dark"] .row:hover .rlogo{background:rgba(255,255,255,.09)}
:root[data-theme="dark"] .row:hover .rlogo img{filter:grayscale(1) invert(1) brightness(1.16);opacity:1}
:root[data-theme="dark"] .rmark img{filter:grayscale(1) invert(1)}
.row h3{margin:0;font-size:19px}
.row .where{font-size:13.5px;color:var(--accent);margin-top:4px}
.row ul{margin:14px 0 0;padding-inline-start:18px;color:var(--ink2);font-size:14.5px}
.row li{margin-bottom:6px}

/* ---------- contact ---------- */
.contact{background:var(--bg2);border-top:1px solid var(--line)}
.cgrid{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:start}
.contact h2{font-size:clamp(28px,3.6vw,46px)}
.contact p{color:var(--ink2);max-width:44ch;margin:20px 0 0}
.clinks{display:flex;flex-direction:column;border-top:1px solid var(--line2)}
.clink{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 2px;
  border-bottom:1px solid var(--line2);text-decoration:none;transition:padding-inline-start .25s}
.clink:hover{padding-inline-start:10px}
.clink b{font-weight:500;font-size:15px;word-break:break-word}
.clink small{color:var(--muted);font-size:12.5px;display:block;margin-top:2px}
.clink .ar{color:var(--accent)}
body[dir="rtl"] .clink .ar{transform:scaleX(-1)}
.site-footer{padding:32px 0;font-size:12.5px;color:var(--muted);display:flex;
  justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- case study overlay ---------- */
#cs{position:fixed;inset:0;z-index:100;background:var(--bg);overflow-y:auto;overscroll-behavior:contain;
  opacity:0;visibility:hidden;transition:opacity .35s,visibility .35s}
#cs.open{opacity:1;visibility:visible}
#cs .inner{transform:translateY(26px);transition:transform .55s cubic-bezier(.22,1,.36,1)}
#cs.open .inner{transform:none}
.csbar{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 92%,transparent);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.csbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:60px}
.csbar b{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.csnav{display:flex;gap:7px;align-items:center}
.cshero{padding:56px 0 40px}
.cshero .badge{margin-top:12px}
.cshero h2{font-size:clamp(30px,4.2vw,50px);margin:14px 0 0;max-width:20ch}
.cshero .sum{font-size:clamp(16px,1.3vw,19px);color:var(--ink2);max-width:58ch;margin:20px 0 0}
.csmeta{display:grid;grid-template-columns:repeat(4,1fr);margin-top:40px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.csmeta div{padding:20px 22px;border-inline-end:1px solid var(--line)}
.csmeta div:last-child{border-inline-end:0}
.csmeta h3{margin:0;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
body[dir="rtl"] .csmeta h3{letter-spacing:.02em}
.csmeta p{margin:9px 0 0;font-size:13.5px;line-height:1.5}
body[dir="rtl"] .csmeta div:last-child p{direction:ltr;text-align:right}
.csbody{max-width:720px;margin:0 auto;padding:8px 0 30px}
.csbody h3{font-size:clamp(20px,2.1vw,26px);margin:48px 0 14px}
.csbody h3:first-child{margin-top:0}
.csbody p{margin:0 0 16px;color:var(--ink2);font-size:16px}
.csbody ul{padding-inline-start:20px;color:var(--ink2);margin:0 0 16px}
.csbody li{margin-bottom:8px}
.csbody strong{color:var(--ink);font-weight:600}
.resgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:2px;
  background:var(--line);margin:30px 0 34px}
.res{background:var(--bg);padding:24px 20px}
.res b{display:block;font-weight:600;font-size:28px;line-height:1;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums}
body[dir="rtl"] .res b{direction:ltr;unicode-bidi:isolate;text-align:right}
.res span{display:block;font-size:12.5px;color:var(--muted);margin-top:8px;line-height:1.45}
.csfoot{border-top:1px solid var(--line);margin-top:56px;padding:32px 0 84px;display:flex;
  justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.confnote{display:flex;gap:11px;align-items:flex-start;margin:34px 0;padding:14px 16px;
  border:1px solid var(--line);border-inline-start:2px solid var(--accent);border-radius:0 6px 6px 0;
  background:var(--bg2);font-size:13px;color:var(--muted);line-height:1.6}
body[dir="rtl"] .confnote{border-radius:6px 0 0 6px}
.confnote svg{width:15px;height:15px;flex:0 0 auto;margin-top:2px;color:var(--accent)}
.metricnote{font-size:12.5px;color:var(--muted);margin:-4px 0 20px;display:flex;gap:18px;flex-wrap:wrap}

/* ---------- diagrams ---------- */
.flow{margin:26px 0 34px}
.flow h4{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  font-weight:600;margin:0 0 14px}
body[dir="rtl"] .flow h4{letter-spacing:.02em}
.flowsteps{display:flex;flex-wrap:wrap;border:1px solid var(--line);border-bottom:0;
  border-radius:8px;overflow:hidden;background:var(--surface)}
.fstep{flex:1 1 150px;padding:16px 14px;font-size:13px;line-height:1.4;color:var(--ink2);
  border-inline-end:1px solid var(--line);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:9px}
.fstep:last-child{border-inline-end:0}
.flowsteps.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr))}
.flowsteps.cols .fstep{flex-direction:column;align-items:flex-start;gap:8px;padding:18px 18px}
.flowsteps.cols .fstep strong{color:var(--ink);font-size:13.5px}
.fstep i{width:20px;height:20px;flex:0 0 auto;border-radius:6px;background:var(--accent-soft);
  color:var(--accent);display:grid;place-items:center;font-size:10.5px;font-weight:700;
  font-style:normal;font-variant-numeric:tabular-nums}
.fstep.hi{background:var(--accent-soft);color:var(--ink);font-weight:600}

/* ---------- charts ---------- */
.chart{margin:0 0 34px}
.chart figcaption{font-size:12.5px;color:var(--muted);margin-bottom:16px;font-weight:500;line-height:1.5}
.bars{display:flex;flex-direction:column;gap:8px}
.brow{display:grid;grid-template-columns:minmax(110px,190px) 1fr 62px;gap:14px;align-items:center;
  font-size:13px;padding:4px 6px;margin:0 -6px;border-radius:5px;transition:background .2s}
.brow:hover{background:var(--bg2)}
.blabel{color:var(--ink2);text-align:end;line-height:1.3}
.brow.ours .blabel{color:var(--ink);font-weight:600}
.btrack{height:13px;position:relative;background:var(--bg2);border-radius:3px}
.bfill{position:absolute;inset-block:0;inset-inline-start:0;width:var(--w);background:var(--bar);
  border-start-end-radius:4px;border-end-end-radius:4px;min-width:3px}
.brow.ours .bfill{background:var(--accent)}
.bval{font-variant-numeric:tabular-nums;color:var(--muted);font-size:12.5px;direction:ltr;text-align:start}
.brow.ours .bval{color:var(--ink);font-weight:600}
.chart .note{font-size:12px;color:var(--muted);margin-top:16px;padding-top:12px;
  border-top:1px solid var(--line);line-height:1.6}
.chart .note a{color:var(--accent)}

/* ---------- drawing reading card ---------- */
.dcard{margin:40px 0 10px;display:grid;grid-template-columns:230px 1fr;
  border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--surface)}
.dimg{background:#F4F3EF;display:grid;place-items:center;padding:22px;border-inline-end:1px solid var(--line)}
.dimg img{width:100%;height:auto;border-radius:4px;box-shadow:0 1px 3px rgba(0,0,0,.10)}
.dread{padding:26px 28px;display:flex;flex-direction:column;justify-content:center}
.dtag{font-size:10.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
body[dir="rtl"] .dtag{letter-spacing:.02em}
.dread h4{margin:11px 0 0;font-size:21px}
.dread p{margin:12px 0 0;font-size:14.5px;color:var(--ink2);line-height:1.65}
.dnote{margin-top:16px;padding-top:13px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(20px)}
.rv.in{opacity:1;transform:none;
  transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  .rv{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- responsive ---------- */
@media(max-width:1024px){
  .hgrid{grid-template-columns:1fr;gap:40px}
  .skills{grid-template-columns:repeat(2,1fr)}
  .abody{columns:1;max-width:64ch}
  .site-nav{gap:18px}
  .site-nav a{font-size:13px}
}
@media(max-width:900px){
  .rmark{display:none}
  .site-nav{display:none}
  .site-nav.open{display:flex;position:absolute;top:100%;inset-inline:0;flex-direction:column;gap:0;
    background:var(--surface);border-block:1px solid var(--line);padding:8px 28px 16px}
  .site-nav.open a{padding:11px 0;font-size:15px;border-bottom:1px solid var(--line)}
  .site-nav.open a:last-child{border-bottom:0}
  .navtoggle{display:grid}
  .proj{grid-template-columns:1fr;gap:24px;padding:38px 0}
  .proj.flip .pimg{order:0}
  .cgrid{grid-template-columns:1fr;gap:36px}
  .csmeta{grid-template-columns:repeat(2,1fr)}
  .csmeta div:nth-child(2){border-inline-end:0}
  .row{grid-template-columns:150px 1fr;gap:24px}
}
@media(max-width:640px){
  .wrap{padding:0 20px}
  .hero{padding:118px 0 56px}
  section{padding:60px 0}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid var(--line);padding:22px 18px}
  .stat:nth-child(2n){border-inline-end:0}
  .stat b{font-size:28px}
  .skills,.other,.mini{grid-template-columns:1fr}
  .row{grid-template-columns:1fr;gap:10px}
  .rlogo{width:48px;height:48px;border-radius:11px}
  .shead{flex-direction:column;gap:10px}
  .shead p{text-align:start}
  .brow{grid-template-columns:minmax(84px,116px) 1fr 54px;gap:10px;font-size:12px}
  .dcard{grid-template-columns:1fr}
  .dimg{border-inline-end:0;border-bottom:1px solid var(--line);padding:18px 60px}
  .fstep{flex:1 1 100%;border-inline-end:0;border-bottom:1px solid var(--line)}
  .fstep:last-child{border-bottom:0}
  .csbar .wrap{height:54px}
  .cshero{padding:36px 0 28px}
  .btn-cv span{display:none}
  .btn-cv{padding:8px 11px}
}