/* ============================================================
   BRAINCHECK — DESIGN SYSTEM
   Base: near-black ink · Paper light mode
   Accent: signal lime (interaction only)
   Semantics: green success · red mistake · amber warning
   Type: Space Grotesk (display) / Inter (body) / JetBrains Mono (meta)
   ============================================================ */

:root{
  --bg:#0c0d10;
  --panel:#131418;
  --panel2:#1b1d23;
  --border:#272932;
  --border-strong:#34363f;
  --text:#f1f2ec;
  --muted:#8d9099;

  --accent:#c9f24f;
  --accent-ink:#151903;
  --accent-dim:rgba(201,242,79,.14);

  --good:#41e296;
  --bad:#ff4d6d;
  --warn:#ffc94d;

  --radius:16px;
  --radius-sm:10px;
  --font-display:'Space Grotesk',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono','Cascadia Mono',ui-monospace,Menlo,Consolas,monospace;
}
[data-theme="light"]{
  --bg:#f1f0ea;
  --panel:#fafaf6;
  --panel2:#ecebe3;
  --border:#d9d7cc;
  --border-strong:#c4c2b5;
  --text:#16170f;
  --muted:#686b60;
  --accent:#89b317;
  --accent-ink:#ffffff;
  --accent-dim:rgba(137,179,23,.13);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  min-height:100vh;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  transition:background .35s,color .35s;
}
/* faint structural grid — barely there, replaces decorative particles */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(var(--border) 1px,transparent 1px),
    linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.16;
  mask-image:radial-gradient(900px 600px at 50% 0%,#000 20%,transparent 80%);
  -webkit-mask-image:radial-gradient(900px 600px at 50% 0%,#000 20%,transparent 80%);
}

/* ---------- TYPE ---------- */
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.04;letter-spacing:-.02em;margin:0}
.mono{font-family:var(--mono)}
.kicker{
  font-family:var(--font);font-size:13.5px;font-weight:600;letter-spacing:.01em;
  color:var(--muted);display:flex;align-items:center;gap:10px;margin:0 0 18px;
}
.kicker::before{content:"";width:22px;height:2px;background:var(--accent);flex:none}
.muted{color:var(--muted)}

/* ---------- CHROME ---------- */
header{
  position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:16px;
  padding:0 clamp(14px,3vw,28px);height:60px;
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border);
}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;
  letter-spacing:.14em;font-size:15px;white-space:nowrap}
.logo .mark{width:12px;height:12px;background:var(--accent);flex:none;border-radius:3px;
  clip-path:polygon(0 0,100% 0,100% 65%,65% 100%,0 100%)}
#progressWrap{flex:1;display:flex;flex-direction:column;gap:6px;min-width:40px;position:relative}
#progressCount{font-family:var(--mono);font-variant-numeric:tabular-nums;font-weight:500;font-size:11px;
  letter-spacing:.15em;color:var(--muted);white-space:nowrap;display:none;text-align:right}
#progressBar{height:3px;border-radius:99px;background:var(--panel2);overflow:hidden;display:none;width:100%}
#progressBar.on,#progressCount.on{display:block}
#progressFill{height:100%;width:0%;background:var(--accent);transition:width .45s cubic-bezier(.2,.8,.2,1)}
#progressMsg{position:absolute;left:0;top:22px;font-size:11.5px;color:var(--muted);
  opacity:0;transition:opacity .4s;pointer-events:none;white-space:nowrap}
#progressMsg.show{opacity:1}
.controls{display:flex;gap:6px;margin-left:auto}
.iconbtn{width:38px;height:38px;border-radius:var(--radius-sm);border:1px solid var(--border);
  background:transparent;color:var(--text);cursor:pointer;display:grid;place-items:center;
  transition:background .2s,border-color .2s}
.iconbtn:hover{background:var(--panel2);border-color:var(--border-strong)}
.iconbtn.off{opacity:.4}
.iconbtn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round}
#soundBtn .ic-mut,#themeBtn .ic-sun{display:none}
#soundBtn.off .ic-wav{display:none}
#soundBtn.off .ic-mut{display:block}
[data-theme="light"] #themeBtn .ic-moon{display:none}
[data-theme="light"] #themeBtn .ic-sun{display:block}
main{max-width:1020px;margin:0 auto;padding:0 clamp(16px,4vw,32px) 90px;position:relative;z-index:1}
/* the test arena runs narrower and fully centered */
.inrun main{max-width:760px}

/* ---------- GENERIC UI ---------- */
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:clamp(20px,4vw,30px)}
.card h3{font-size:14.5px;font-weight:600;font-family:var(--font);letter-spacing:0;color:var(--text);
  margin:0 0 20px;display:flex;align-items:center;gap:10px}
.card h3::after{content:"";flex:1;height:1px;background:var(--border)}
.btn{
  appearance:none;border:1px solid transparent;cursor:pointer;font-family:var(--font-display);
  font-weight:600;border-radius:12px;padding:15px 28px;font-size:16px;letter-spacing:.01em;
  touch-action:manipulation;
  background:var(--accent);color:var(--accent-ink);
  transition:transform .12s cubic-bezier(.2,.8,.2,1),filter .15s,background .2s,border-color .2s;
}
.btn:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn.pressed{transform:scale(.94);filter:brightness(1.18)}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--border-strong)}
.btn.ghost:hover{background:var(--panel2);filter:none}
.btn.big{font-size:18px;padding:18px 38px;border-radius:14px}
.btn:focus-visible,.iconbtn:focus-visible,.ans:focus-visible,.cell:focus-visible,
.numKey:focus-visible,.targetBtn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
a.btn{text-decoration:none;display:inline-block}
.xLink{display:inline-flex;align-items:center;gap:10px}
.xLink svg{width:16px;height:16px;fill:currentColor;flex:none}

@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ============================================================
   LANDING
   ============================================================ */
.hero{padding:clamp(48px,9vh,96px) 0 clamp(40px,7vh,72px);animation:fadeUp .6s ease both}
.hero.centerScreen{min-height:calc(100vh - 60px);display:flex;align-items:center;padding-top:0}
.hero.centerScreen .qwrap{gap:16px}
.hero.centerScreen .kicker{justify-content:center}
.hero.centerScreen .sectionTitle{max-width:none;text-align:center;margin-left:auto;margin-right:auto}
.heroGrid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.85fr);gap:clamp(28px,6vw,72px);align-items:center}
.hero h1{
  font-size:clamp(44px,7.2vw,92px);font-weight:700;margin:0 0 20px;max-width:11ch;
}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .sub{font-size:clamp(17px,2.2vw,21px);line-height:1.55;color:var(--muted);margin:0 0 34px;max-width:42ch}
.heroCTA{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:14px}
.heroFine{font-size:13px;color:var(--muted);line-height:1.6;max-width:46ch;margin:18px 0 0}
.heroFine b{color:var(--text);font-weight:600}
.factRow{display:flex;gap:0;margin-top:36px;border-top:1px solid var(--border)}
.fact{padding:16px 22px 0 0;margin-right:22px;border-right:1px solid var(--border)}
.fact:last-child{border-right:none;margin-right:0}
.fact b{display:block;font-family:var(--font-display);font-size:22px;font-weight:700;line-height:1.1}
.fact span{font-family:var(--font);font-size:12.5px;letter-spacing:.01em;color:var(--muted)}

/* hero motif — a live memory-grid component from the test itself */
.heroVisual{display:grid;place-items:center;min-height:300px}
.demoPanel{
  width:min(340px,80vw);background:var(--panel);border:1px solid var(--border);
  border-radius:var(--radius);padding:clamp(20px,4vw,28px);
  display:flex;flex-direction:column;gap:20px;
  box-shadow:0 24px 60px -30px rgba(0,0,0,.5);
  transform:rotate(1.2deg);
}
.demoGrid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}
.demoCell{aspect-ratio:1;border-radius:10px;background:var(--panel2);border:1px solid var(--border)}
.demoCell.pulse{animation:demoCell 4.2s ease-in-out infinite}
.demoCell.d1{animation-delay:.35s}.demoCell.d2{animation-delay:1.25s}
.demoCell.d3{animation-delay:2.15s}.demoCell.d4{animation-delay:3.05s}
@keyframes demoCell{
  0%,100%{background:var(--panel2);border-color:var(--border)}
  4%,16%{background:var(--accent);border-color:var(--accent)}
}
.demoBar{height:3px;border-radius:99px;background:var(--panel2);overflow:hidden}
.demoBar i{display:block;height:100%;width:0;background:var(--accent);animation:demoFill 4.2s linear infinite}
@keyframes demoFill{from{width:0}to{width:100%}}
.demoMeta{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.demoMeta span{font-size:13px;color:var(--muted)}
.demoMeta b{font-family:var(--mono);font-size:12.5px;font-weight:500;
  font-variant-numeric:tabular-nums;color:var(--text)}

/* sections */
.sectionBlock{margin-top:clamp(72px,12vh,120px);animation:fadeUp .6s ease both}
.sectionTitle{font-size:clamp(28px,4.5vw,44px);font-weight:700;margin:0 0 10px;max-width:22ch}
.sectionSub{color:var(--muted);font-size:16.5px;margin:0 0 40px;max-width:52ch;line-height:1.55}

/* WHAT WE TEST — an index, not a card grid */
.dimIndex{border-top:1px solid var(--border)}

/* EXPLORE THE TESTS — category cards linking concepts to real tests */
.exploreGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:860px){.exploreGrid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.exploreGrid{grid-template-columns:1fr}}
.exploreCard{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;transition:border-color .2s;
}
.exploreCard:hover{border-color:var(--border-strong)}
.exploreCard h3{font-family:var(--font-display);font-size:16px;font-weight:700;margin:0 0 8px;color:var(--text)}
.exploreCard p{margin:0 0 12px;font-size:13.5px;line-height:1.55;color:var(--muted)}
.exploreTests{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.exploreTests li{
  font-size:11.5px;font-weight:600;letter-spacing:.02em;color:var(--text);
  background:var(--panel2);border:1px solid var(--border);border-radius:8px;padding:4px 9px;
}
.exploreFine{margin-top:22px;text-align:left;line-height:1.6}
html[dir="rtl"] .exploreFine{text-align:right}
.dimRow{
  display:grid;grid-template-columns:52px minmax(0,1fr);gap:2px 18px;align-items:baseline;
  padding:24px 4px;border-bottom:1px solid var(--border);cursor:default;
  transition:background .2s,padding-left .25s;
}
.dimRow:hover{background:var(--panel);padding-left:14px}
.dimRow .idx{font-family:var(--font-display);font-size:13px;font-weight:600;color:var(--muted);
  letter-spacing:.06em;font-variant-numeric:tabular-nums;transition:color .2s}
.dimRow:hover .idx{color:var(--accent)}
.dimBody b{font-family:var(--font-display);font-size:20px;font-weight:700;display:block;margin-bottom:3px}
.dimBody small{display:block;color:var(--muted);font-size:14px;line-height:1.5}
@media(min-width:760px){
  .dimIndex{display:grid;grid-template-columns:1fr 1fr;column-gap:56px}
}

/* HOW IT WORKS — editorial numbers, no boxes */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
@media(max-width:760px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.steps{grid-template-columns:1fr}}
.step{border-top:2px solid var(--border-strong);padding-top:16px;transition:border-color .25s}
.step:hover{border-top-color:var(--accent)}
.step::before{counter-increment:s;content:"0" counter(s);display:block;
  font-family:var(--font-display);font-size:13px;font-weight:600;color:var(--accent);
  letter-spacing:.06em;font-variant-numeric:tabular-nums;margin-bottom:12px}
.step b{display:block;font-family:var(--font-display);font-size:19px;font-weight:700;
  letter-spacing:-.01em;margin-bottom:6px}
.step p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}

.disclaimer{margin-top:90px;font-size:12.5px;color:var(--muted);text-align:center;line-height:1.8;
  border-top:1px solid var(--border);padding-top:28px;max-width:62ch;margin-inline:auto}
.footerLinks{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin:0 0 16px;
  font-size:13px;max-width:70ch;margin-inline:auto}
.footerLinks a{color:var(--muted);text-decoration:none;border-bottom:1px solid var(--border-strong);
  padding-bottom:1px;transition:color .2s,border-color .2s}
.footerLinks a:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- LEGAL / STATIC PAGES ---------- */
.pageHeader{position:sticky;top:0;z-index:50;display:flex;align-items:center;height:60px;
  padding:0 clamp(14px,3vw,28px);background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
a.logo{text-decoration:none;color:inherit}
.doc{max-width:720px;margin:0 auto;padding:clamp(36px,6vh,64px) clamp(16px,4vw,32px) 80px;
  animation:fadeUp .5s ease both}
.doc .updated{color:var(--muted);font-size:13px;margin:0 0 26px}
.doc h2{font-size:19px;font-weight:700;margin:30px 0 10px}
.doc h2:first-of-type{margin-top:6px}
.doc p{margin:0 0 14px;font-size:15px;line-height:1.75;color:var(--text)}
.doc ul{margin:0 0 14px;padding-left:22px;font-size:15px;line-height:1.75;color:var(--text)}
.doc li{margin-bottom:6px}

/* ============================================================
   TEST ARENA
   ============================================================ */
.stageWrap{min-height:calc(100vh - 60px);display:flex;flex-direction:column;justify-content:center;
  padding:20px 0 40px;animation:fadeIn .3s ease both}
.arenaTag{
  display:flex;align-items:center;justify-content:center;gap:12px;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:26px;user-select:none;
}
.arenaTag .dot{width:7px;height:7px;border-radius:50%;background:var(--dim,var(--accent));flex:none}
.arenaTag .sep{opacity:.4}
.stage{position:relative;min-height:340px;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:18px;width:100%}
.stageHead{text-align:center;margin-bottom:14px;animation:fadeUp .35s ease both;max-width:600px}
.stageHead h2{margin:0 0 8px;font-size:clamp(23px,4.4vw,32px);font-weight:700}
.stageHead p{margin:0;color:var(--muted);font-size:15px;line-height:1.5}
.qwrap{display:flex;flex-direction:column;align-items:center;width:100%;gap:14px}
.centerCol{display:flex;flex-direction:column;align-items:center;width:100%;gap:12px}

.arena{position:relative;width:min(92vw,540px);height:min(50vh,370px);background:var(--panel);
  border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;touch-action:manipulation}
.targetBtn{position:absolute;width:clamp(64px,14vmin,86px);height:clamp(64px,14vmin,86px);border-radius:50%;
  border:none;cursor:pointer;background:var(--accent);transition:transform .08s}
.targetBtn:active{transform:scale(.88)}

.bigWord{font-family:var(--font-display);font-size:clamp(48px,12vw,84px);font-weight:700;letter-spacing:4px}
.bigNum{font-family:var(--font-display);font-size:clamp(56px,14vw,96px);font-weight:700;font-variant-numeric:tabular-nums}

.ansGrid{display:grid;grid-template-columns:repeat(2,minmax(130px,1fr));gap:10px;width:min(92vw,460px)}
.ans{
  padding:18px 14px;font-size:18px;font-weight:600;font-family:var(--font-display);letter-spacing:.02em;
  border-radius:12px;border:1px solid var(--border);background:var(--panel);color:var(--text);
  cursor:pointer;min-height:58px;touch-action:manipulation;
  transition:transform .1s,background .15s,border-color .15s;
}
.ans:hover:not(:disabled){background:var(--panel2);border-color:var(--border-strong);transform:translateY(-1px)}
.ans.good{background:rgba(65,226,150,.14)!important;border-color:var(--good)!important;color:var(--good)}
[data-theme="light"] .ans.good{background:rgba(65,226,150,.18)!important}
.ans.bad{background:rgba(255,77,109,.12)!important;border-color:var(--bad)!important;color:var(--bad)}
[data-theme="light"] .ans.bad{background:rgba(255,77,109,.14)!important}
.ans.sel{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}

.gridCells{display:grid;gap:6px;width:min(88vw,330px)}
.cell{aspect-ratio:1;border-radius:var(--radius-sm);background:var(--panel);border:1px solid var(--border);
  cursor:pointer;transition:background .15s,border-color .15s;display:grid;place-items:center;
  font-size:clamp(16px,4vmin,25px);padding:0;font-family:inherit;color:var(--text)}
.cell:hover{border-color:var(--border-strong)}
.cell.lit{background:var(--accent);border-color:var(--accent)}
.cell.pick{background:var(--accent-dim);border-color:var(--accent)}

.numPad{display:grid;grid-template-columns:repeat(5,62px);gap:8px}
.numKey{height:56px;font-size:21px;font-weight:600;font-family:var(--mono);border-radius:12px;
  border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer;
  transition:background .15s,border-color .15s}
.numKey:hover{background:var(--panel2);border-color:var(--border-strong)}

.seqDots{display:flex;gap:10px;min-height:52px;align-items:center;flex-wrap:wrap;justify-content:center}
.pulseDot{width:24px;height:24px;border-radius:50%;background:var(--panel2);border:1px solid var(--border);
  transition:all .1s}
.pulseDot.hot{background:var(--accent);border-color:var(--accent);transform:scale(1.3)}

.shapeBox{display:grid;grid-template-columns:repeat(3,26px);grid-template-rows:repeat(3,26px);gap:3px;
  padding:10px;border-radius:12px;background:var(--panel);border:1px solid var(--border)}
.sc{border-radius:4px}.sc.f{background:var(--accent)}

.toast{position:absolute;left:50%;bottom:-8px;transform:translateX(-50%) translateY(8px);
  padding:9px 18px;border-radius:10px;font-weight:600;font-size:14px;font-family:var(--mono);
  opacity:0;transition:all .25s;pointer-events:none;white-space:nowrap;max-width:94vw;
  text-overflow:ellipsis;overflow:hidden;z-index:5}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.ok{background:var(--panel);color:var(--good);border:1px solid var(--good)}
.toast.no{background:var(--panel);color:var(--bad);border:1px solid var(--bad)}

.hint{font-size:13.5px;color:var(--muted);text-align:center;font-family:var(--font);letter-spacing:0}

/* immediate per-action timing feedback inside the test area */
.rtFeedback{min-height:30px;display:flex;align-items:flex-start;justify-content:center;
  width:min(92vw,460px);font-family:var(--mono);font-size:clamp(17px,3vmin,22px);
  font-weight:600;letter-spacing:.04em;font-variant-numeric:tabular-nums;
  color:var(--text);pointer-events:none;user-select:none}
.rtFeedback.pop{animation:rtPop .2s ease-out both}
@keyframes rtPop{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.rtFeedback.arenaRt{position:absolute;left:0;right:0;bottom:10px;width:auto;z-index:3}

/* MULTITASK MADNESS */
.mtJob{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:16px 18px;width:min(92vw,460px);text-align:left}
.mtJob p{margin:8px 0 0;font-size:14.5px;line-height:1.55}
.mtJob .hint{margin-top:8px}
.mtJobTag{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--muted)}
.mtBoard{display:grid;grid-template-columns:repeat(2,minmax(130px,220px));gap:12px}
.mtPanel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:14px 10px;display:flex;flex-direction:column;align-items:center;gap:12px;min-height:168px}
.mtPanelTag{font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:var(--muted)}
.mtLight{width:76px;height:76px;border-radius:50%;border:2px solid var(--bad);
  background:rgba(255,77,109,.12);display:grid;place-items:center;margin:auto 0;
  font-family:var(--font-display);font-weight:700;font-size:13px;letter-spacing:.08em;color:var(--bad);
  transition:background .15s,border-color .15s,color .15s,transform .1s}
.mtLight.go{border-color:var(--good);background:rgba(65,226,150,.16);color:var(--good)}
.mtLight.hit{transform:scale(1.07)}
.mtSym{font-family:var(--font-display);font-size:46px;line-height:1;margin:auto 0;color:var(--text)}
.mtTap{min-width:190px}

/* SOUNDLESS RHYTHM */
.stateTag{font-family:var(--mono);font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--accent)}
.rhythmLight{width:clamp(120px,28vmin,160px);aspect-ratio:1;border-radius:50%;
  background:var(--panel2);border:2px solid var(--border-strong);
  display:grid;place-items:center;user-select:none;-webkit-user-select:none;
  touch-action:manipulation;
  transition:transform .09s cubic-bezier(.2,.8,.2,1),background .09s,border-color .09s}
.rhythmLight.on{background:var(--accent);border-color:var(--accent);transform:scale(1.07)}
.rhythmLight.live{cursor:pointer;border-color:var(--accent)}
.rhythmLight.live:active{transform:scale(.95)}
.accNum{font-family:var(--font-display);font-weight:700;font-size:clamp(48px,11vw,68px);
  color:var(--text);line-height:1;font-variant-numeric:tabular-nums}
.accNum small{font-size:.35em;color:var(--muted);letter-spacing:.1em}
.timerbar{height:3px;width:min(88vw,420px);border-radius:99px;background:var(--panel2);overflow:hidden}
.timerfill{height:100%;background:var(--accent);width:100%}
.shake{animation:shake .35s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-7px)}75%{transform:translateX(7px)}}

/* ---------- TRANSITION OVERLAY ---------- */
#overlay{position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:14px;background:color-mix(in srgb,var(--bg) 93%,transparent);
  backdrop-filter:blur(8px);opacity:0;pointer-events:none;transition:opacity .3s;text-align:center;padding:24px}
#overlay.on{opacity:1;pointer-events:auto}
#ovNum{font-family:var(--mono);font-size:12px;font-weight:500;letter-spacing:.3em;color:var(--accent)}
#ovName{font-size:clamp(30px,7vw,54px);font-weight:700;margin:0;max-width:16ch}
#ovQuip{color:var(--muted);font-size:15.5px;max-width:420px;margin:0;line-height:1.55}

/* ---------- INTERMISSION ---------- */
.vsCard{max-width:480px;text-align:center}
.vsCard .rank{font-family:var(--font-display);font-size:clamp(26px,6vw,36px);font-weight:700;color:var(--accent);margin:12px 0}
.vsCard .note{font-size:12px;color:var(--muted)}

/* ============================================================
   RESULTS
   ============================================================ */
.revealSeq{text-align:center;font-family:var(--font);font-size:clamp(16px,3.4vw,19px);font-weight:500;
  min-height:60vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;
  color:var(--muted)}

.resultHero{text-align:center;padding:clamp(40px,8vh,72px) 0 30px;animation:fadeUp .6s ease both}
.resultHero .kicker{justify-content:center}
.resultHero .kicker::before{display:none}
.scoreBig{font-family:var(--font-display);font-weight:700;line-height:.95;letter-spacing:-.03em;
  font-size:clamp(110px,24vw,190px);font-variant-numeric:tabular-nums;color:var(--text)}
.scoreBig small{display:block;font-family:var(--font);font-size:12.5px;font-weight:600;
  letter-spacing:.08em;color:var(--muted);margin-top:10px}
.tierName{text-align:center;font-size:clamp(28px,6vw,44px);font-weight:700;margin:26px 0 8px;color:var(--accent)}
.tierQuote{text-align:center;color:var(--muted);font-size:16.5px;margin:0 0 14px;font-style:normal;max-width:48ch;margin-inline:auto;line-height:1.55}

.bars{display:flex;flex-direction:column;gap:16px}
.barRow{display:grid;grid-template-columns:140px 1fr 44px;align-items:center;gap:14px}
.barRow label{font-family:var(--font);font-weight:600;font-size:13px;letter-spacing:.01em;
  color:var(--text)}
.barTrack{height:6px;border-radius:99px;background:var(--panel2);overflow:hidden}
.barFill{height:100%;width:0;border-radius:99px;background:var(--accent);transition:width 1.1s cubic-bezier(.2,.8,.2,1)}
.barRow output{font-family:var(--mono);font-weight:700;font-variant-numeric:tabular-nums;font-size:13px;text-align:right}
.summary{font-size:16.5px;line-height:1.7;text-align:center;margin:28px auto 0;max-width:520px;color:var(--text)}

.roastBox{border-color:var(--warn)}
.roastLine{padding:11px 0;border-bottom:1px dashed var(--border);font-size:15px;line-height:1.55}
.roastLine:last-child{border:none}

.cmpCols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:22px;margin-top:4px}
.cmpCol h4{margin:0 0 12px;font-family:var(--font);font-size:13px;font-weight:600;letter-spacing:.01em;
  color:var(--text)}
.cmpCol ul{list-style:none;margin:0;padding:0}
.cmpCol li{padding:8px 0;font-size:14.5px;border-bottom:1px dashed var(--border);line-height:1.5}
.cmpCol li:last-child{border:none}
.cmpCol li::before{content:"— ";color:var(--accent)}

/* RUN BREAKDOWN — per-test metrics */
.tmList{display:flex;flex-direction:column}
.tmRow{padding:14px 0;border-bottom:1px dashed var(--border)}
.tmRow:first-child{padding-top:2px}
.tmRow:last-child{border:none;padding-bottom:0}
.tmHead{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:8px}
.tmHead b{font-family:var(--font-display);font-size:16px;font-weight:700}
.tmScore{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;white-space:nowrap}
.tmChips{display:flex;gap:8px;flex-wrap:wrap}
.tmChip{font-family:var(--mono);font-size:11.5px;letter-spacing:.04em;color:var(--text);
  background:var(--panel2);border:1px solid var(--border);border-radius:8px;
  padding:5px 10px;display:inline-flex;gap:7px;font-variant-numeric:tabular-nums}
.tmChip .tml{color:var(--muted)}

.shareRow{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:36px 0 10px}
.susp{border-color:var(--warn)!important}
.susp h3{color:var(--warn)}
.riskTag{display:inline-block;padding:6px 14px;border-radius:10px;background:var(--panel2);
  border:1px solid var(--border);font-family:var(--mono);font-weight:500;font-size:12px;
  letter-spacing:.06em;margin-top:18px}
.spokenLine{text-align:center;font-family:var(--font);font-size:13px;letter-spacing:.01em;
  color:var(--muted);margin:6px 0 0}

/* ---------- PRE-TEST ---------- */
.nameInput{
  font-family:var(--font-display);font-size:clamp(24px,5.5vw,32px);font-weight:700;
  text-align:center;color:var(--text);background:transparent;
  border:none;border-bottom:2px solid var(--border-strong);
  padding:8px 4px;width:min(86vw,340px);outline:none;letter-spacing:-.01em;
  transition:border-color .2s;
}
.nameInput:focus{border-color:var(--accent)}
.nameInput::placeholder{color:var(--muted);opacity:.55;font-weight:500}
.nameErr{color:var(--bad);min-height:1.2em;margin:2px 0 0}
.readyFacts{display:flex;gap:0;flex-wrap:wrap;justify-content:center;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:14px 0;margin:0 0 26px}
.readyFacts span{font-family:var(--font);font-size:12.5px;letter-spacing:.01em;
  color:var(--muted);padding:2px 18px}
.readyFacts span+span{border-left:1px solid var(--border)}

/* countdown reuses the overlay, minus quip/button */
#overlay.count #ovQuip,#overlay.count #ovGo{display:none}
#overlay.count #ovName{font-variant-numeric:tabular-nums}

/* ---------- RESPONSIVE ---------- */
@media(max-width:860px){
  .heroGrid{grid-template-columns:1fr}
  .heroVisual{min-height:0;margin-top:28px}
  .demoPanel{transform:none}
  .hero h1{max-width:none}
  .factRow{flex-wrap:wrap;gap:0 24px}
  .fact{padding-right:16px;margin-right:0}
}
@media(max-width:560px){
  main{padding:0 14px 70px}
  .card{padding:18px 16px}
  .barRow{grid-template-columns:96px 1fr 34px;gap:10px}
  .numPad{grid-template-columns:repeat(5,minmax(44px,58px))}
  .logo span.wordmark{display:none}
  .factRow .fact:nth-child(n+4){display:none}
  .timerbar{height:4px} /* slightly more visible countdown on small screens */
}
/* small phones (320–430px): keep tap targets ≥48px, prevent edge overflow */
@media(max-width:400px){
  .ansGrid{gap:8px;width:min(94vw,460px)}
  .ans{padding:15px 10px;font-size:17px;min-height:52px}
  .ansGrid[style*="minmax(90px"]{grid-template-columns:repeat(3,1fr)!important}
  .btn{padding:14px 22px;font-size:15.5px}
  .btn.big{font-size:17px;padding:16px 30px}
  .numPad{gap:6px}
  .numKey{height:52px;font-size:19px}
  .stageHead p{font-size:14px}
  .toast{max-width:92vw;font-size:13px}
  #progressMsg{max-width:56vw;overflow:hidden;text-overflow:ellipsis}
  .mtBoard{grid-template-columns:1fr 1fr;gap:8px}
  .mtPanel{min-height:140px;padding:10px 6px}
  .mtSym{font-size:38px}
  .scoreBig{font-size:clamp(88px,26vw,110px)}
  .tmChip{padding:4px 8px;font-size:11px}
}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}
body.reduce-motion *{animation-duration:.01ms!important;transition-duration:.01ms!important}
.srOnly{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ============================================================
   BILINGUAL SUPPORT (ar / rtl)
   ============================================================ */

/* ---------- LANGUAGE SELECTION ---------- */
.langRow{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:8px}
.langOpt{
  min-width:170px;font-size:17px;display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border:2px solid var(--border-strong);border-radius:14px;padding:18px 26px;background:var(--panel);
  color:var(--text);cursor:pointer;font-family:var(--font-display);font-weight:600;
  transition:border-color .15s,background .15s,transform .12s;
}
.langOpt:hover{background:var(--panel2)}
.langOpt.sel{border-color:var(--accent);background:var(--accent-dim)}
.langOpt .flag{font-size:20px}

/* static-page language toggle */
#langToggle{
  margin-left:auto;border:1px solid var(--border-strong);border-radius:10px;background:transparent;
  color:var(--text);cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;
  padding:8px 14px;transition:background .2s,border-color .2s;
}
#langToggle:hover{background:var(--panel2)}

/* ---------- ARABIC TYPOGRAPHY ---------- */
/* Noto Sans Arabic is loaded from Google Fonts on every page; system Arabic
   fonts act as offline fallback. Overriding the CSS variables keeps the whole
   design system intact — only the typeface adapts. */
html[lang="ar"]{
  --font:'Noto Sans Arabic','Segoe UI',Tahoma,'Noto Kufi Arabic',system-ui,sans-serif;
  --font-display:'Noto Sans Arabic','Space Grotesk',system-ui,sans-serif;
}

/* ---------- RTL LAYOUT ADAPTATIONS ---------- */
html[dir="rtl"] #progressCount{text-align:left}
html[dir="rtl"] #progressMsg{left:auto;right:0}
html[dir="rtl"] header .controls{margin-left:0;margin-right:auto}
html[dir="rtl"] .fact{padding:16px 22px 0 0;margin-right:16px;margin-left:0;border-right:none;border-left:1px solid var(--border)}
html[dir="rtl"] .fact:last-child{border-left:none;margin-right:16px;margin-left:0}
html[dir="rtl"] .readyFacts span+span{border-left:none;border-right:1px solid var(--border)}
html[dir="rtl"] .barRow output{text-align:left}
html[dir="rtl"] .mtJob{text-align:right}
html[dir="rtl"] .doc ul{padding-left:0;padding-right:22px}
html[dir="rtl"] .dimRow:hover{padding-left:4px;padding-right:14px}
/* letter-spacing breaks Arabic script shaping — neutralize decorative tracking */
html[dir="rtl"] .logo,
html[dir="rtl"] .kicker,
html[dir="rtl"] .arenaTag,
html[dir="rtl"] .mtJobTag,
html[dir="rtl"] .mtPanelTag,
html[dir="rtl"] .stateTag,
html[dir="rtl"] .toast,
html[dir="rtl"] .tmChip,
html[dir="rtl"] #ovNum,
html[dir="rtl"] #progressCount,
html[dir="rtl"] .btn,
html[dir="rtl"] .ans,
html[dir="rtl"] .step::before,
html[dir="rtl"] .dimRow .idx,
html[dir="rtl"] .scoreBig small,
html[dir="rtl"] .accNum small,
html[dir="rtl"] h1,html[dir="rtl"] h2,html[dir="rtl"] h3,html[dir="rtl"] h4{letter-spacing:0}
html[dir="rtl"] .hero h1{line-height:1.25}
html[dir="rtl"] .sectionTitle,html[dir="rtl"] .stageHead h2{line-height:1.3}
/* numeric keypad stays in familiar calculator/dialer order under RTL */
html[dir="rtl"] .numPad{direction:ltr}
/* grids whose cells carry positional meaning stay physically anchored */
html[dir="rtl"] .gridCells{direction:ltr}

/* ---------- MOBILE SAFETY (both directions; Arabic-aware) ---------- */
@media(max-width:560px){
  .langRow{width:100%}
  .langOpt{min-width:min(86vw,240px);width:100%;justify-content:center}
  html[dir="rtl"] .toast{white-space:normal;text-align:center;line-height:1.5}
  .toast{white-space:normal;text-align:center;line-height:1.5}
}