/* YOLDAŞ — design tokens come from the project deck (HANDOFF.md).
   Concept: the Turkish provincial licence plate (il plakası). Every city is a plate code. */
:root{
  --ink:#0F2A3D; --ink-2:#173B54; --ink-3:#245173;
  --paper:#F6F3EC; --paper-2:#ECE7DB; --plate:#F7F4EC;
  --orange:#F28C5B; --orange-d:#C2410C; --sea:#5FB3C8;
  --text-d:#0F2A3D; --muted-d:#4D6577; --text-l:#F6F3EC; --muted-l:#9DB2C2;
  --f-head:"Rubik",system-ui,sans-serif; --f-body:"Inter",system-ui,sans-serif;
  --f-serif:"Instrument Serif",Georgia,serif; --f-mono:"JetBrains Mono",ui-monospace,monospace;
  --f-plate:"Barlow Condensed","Arial Narrow",sans-serif;
  --gut:clamp(20px,5vw,64px); --r:34px;
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font:400 17px/1.6 var(--f-body);background:var(--ink);color:var(--text-d);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{display:block}
a{color:inherit}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--orange);color:var(--ink);padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
.wrap{max-width:1180px;margin:0 auto;padding:0 var(--gut)}
.center{text-align:center}
.center .sub{margin-inline:auto}

/* ---------- type ---------- */
h1,h2,h3{font-family:var(--f-head);letter-spacing:-.035em;line-height:1.02;font-weight:700}
h1{font-size:clamp(46px,8.2vw,112px);font-weight:800;letter-spacing:-.05em;line-height:.96}
h2{font-size:clamp(36px,5.6vw,78px);font-weight:700;margin-bottom:22px;max-width:16ch}
.center h2{margin-inline:auto}
h3{font-size:22px;letter-spacing:-.02em;line-height:1.15}
em{font-family:var(--f-serif);font-style:italic;font-weight:400;letter-spacing:-.01em}
h1 em,h2 em{font-size:1.08em;color:var(--orange-d)}
.dark h2 em,.hero h1 em,.close h2 em,.play h2 em{color:var(--orange)}
.label{font:500 12px/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--orange);margin-bottom:22px}
.label.dark{color:var(--orange-d)}
.sub{font-size:clamp(17px,1.6vw,20px);color:var(--muted-d);max-width:60ch;margin-bottom:44px}
.dark .sub,.hero .lede{color:var(--muted-l)}
.fineprint{font:500 12px/1.5 var(--f-mono);color:var(--muted-d);margin-top:18px}
.fineprint.light{color:var(--muted-l)}
.closing-line{font:600 clamp(18px,2vw,24px)/1.3 var(--f-head);letter-spacing:-.02em;margin-top:44px;max-width:44ch}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font:600 16px/1 var(--f-head);padding:17px 28px;border-radius:999px;background:var(--orange);color:var(--ink);text-decoration:none;border:0;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s;box-shadow:0 10px 30px -10px rgba(242,140,91,.7)}
.btn:hover{transform:translateY(-2px);background:#FFA070}
.btn:active{transform:translateY(0) scale(.98)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-ghost{background:transparent;color:var(--text-l);box-shadow:inset 0 0 0 1.5px rgba(246,243,236,.35)}
.btn-ghost:hover{background:rgba(246,243,236,.1)}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.center .cta-row{justify-content:center}

/* ---------- licence plate (the core motif) ---------- */
.plate{display:inline-flex;align-items:stretch;background:var(--plate);color:#111;border:2px solid #111;border-radius:7px;overflow:hidden;height:38px;font-family:var(--f-plate);box-shadow:0 2px 0 rgba(0,0,0,.25);line-height:1}
.plate b{background:#1D3F9A;color:#fff;font:700 9px/1 var(--f-body);display:flex;align-items:flex-end;justify-content:center;padding:0 4px 4px;width:16px;letter-spacing:.02em}
.plate i{font-style:normal;font-weight:700;font-size:28px;letter-spacing:.06em;padding:0 10px 0 8px;display:flex;align-items:center}
.plate.big{height:56px;border-radius:9px}
.plate.big b{width:22px;font-size:11px}
.plate.big i{font-size:42px;padding:0 14px 0 10px}

/* ---------- announce + nav ---------- */
.announce{position:relative;z-index:30;display:flex;gap:14px;justify-content:center;align-items:center;background:var(--orange);color:var(--ink);font:500 12px/1.3 var(--f-mono);padding:9px var(--gut);text-align:center;flex-wrap:wrap}
.announce .dot{width:7px;height:7px;border-radius:50%;background:var(--ink);animation:pulse 1.6s infinite}
.announce a{font-weight:500;text-decoration:underline;text-underline-offset:3px}
@keyframes pulse{50%{opacity:.25}}
.nav{position:fixed;top:44px;left:50%;transform:translateX(-50%);z-index:40;display:flex;align-items:center;gap:26px;padding:9px 9px 9px 20px;border-radius:999px;background:rgba(15,42,61,.55);backdrop-filter:blur(18px) saturate(1.4);-webkit-backdrop-filter:blur(18px) saturate(1.4);border:1px solid rgba(246,243,236,.16);color:var(--text-l);transition:top .3s,background .3s;width:max-content;max-width:calc(100% - 24px)}
.nav.stuck{top:12px;background:rgba(15,42,61,.78)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:800 17px/1 var(--f-head);letter-spacing:-.02em}
.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--orange);color:var(--ink)}
.nav nav{display:flex;gap:22px}
.nav nav a{text-decoration:none;font:500 14px/1 var(--f-body);color:var(--muted-l);transition:color .2s}
.nav nav a:hover{color:#fff}
@media(max-width:860px){.nav nav{display:none}.nav{gap:14px}}

/* ---------- aurora + grain (scrolltide) ---------- */
.aurora{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.aurora i{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;animation:drift 18s ease-in-out infinite alternate}
.aurora i:nth-child(1){width:60vw;height:60vw;max-width:780px;max-height:780px;background:radial-gradient(circle,#E5612F,transparent 65%);left:-12%;top:-20%}
.aurora i:nth-child(2){width:50vw;height:50vw;max-width:640px;max-height:640px;background:radial-gradient(circle,#2A869F,transparent 65%);right:-10%;top:10%;animation-delay:-6s}
.aurora i:nth-child(3){width:40vw;height:40vw;max-width:520px;max-height:520px;background:radial-gradient(circle,#F28C5B,transparent 65%);left:40%;bottom:-25%;opacity:.35;animation-delay:-11s}
.aurora.small i{opacity:.35}
@keyframes drift{to{transform:translate(6%,8%) scale(1.15)}}
.grain{position:absolute;inset:0;pointer-events:none;opacity:.22;mix-blend-mode:overlay;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 .9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--ink);color:var(--text-l);padding:150px var(--gut) 0;min-height:100svh;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:30px;align-items:center;overflow:hidden;padding-bottom:110px}
.hero-inner{position:relative;z-index:2;max-width:760px;margin-left:max(0px,calc((100vw - 1180px)/2 - var(--gut)))}
.hero h1{margin-bottom:28px}
.lede{font-size:clamp(17px,1.7vw,21px);max-width:46ch;margin-bottom:34px}
.lede em{color:var(--text-l);font-size:1.12em}
.card-stage{position:relative;z-index:2;display:grid;place-items:center;perspective:1000px;padding:30px}
.ycard{position:relative;width:min(100%,430px);aspect-ratio:1.586;border-radius:24px;padding:24px 26px;background:linear-gradient(135deg,#1E5A7F 0%,#0F2A3D 55%,#0A1D2B 100%);border:1px solid rgba(246,243,236,.22);box-shadow:0 50px 80px -30px rgba(0,0,0,.7),inset 0 1px 0 rgba(255,255,255,.25);display:flex;flex-direction:column;justify-content:space-between;transform:rotateY(-14deg) rotateX(8deg) rotateZ(-4deg);transition:transform .15s ease-out;color:#FFF8F0;overflow:hidden}
.ycard::before{content:"";position:absolute;inset:0;background:radial-gradient(420px 220px at 85% -10%,rgba(242,140,91,.55),transparent 60%);pointer-events:none}
.ycard-top{display:flex;justify-content:space-between;align-items:center;position:relative}
.ycard-name{font:800 22px/1 var(--f-head);letter-spacing:-.02em}
.ycard-81{position:absolute;right:20px;bottom:36px;font:800 128px/.8 var(--f-head);letter-spacing:-.06em;color:var(--orange);opacity:.95}
.ycard-bot{position:relative;display:flex;flex-direction:column;gap:4px;font:500 12px/1.3 var(--f-mono);letter-spacing:.08em;color:#CFE0EA}
.float-plates .plate{position:absolute;left:var(--x);top:var(--y);transform:rotate(var(--r));animation:bob 5s ease-in-out infinite alternate}
.float-plates .plate:nth-child(2){animation-delay:-1.5s}.float-plates .plate:nth-child(3){animation-delay:-3s}.float-plates .plate:nth-child(4){animation-delay:-4s}
@keyframes bob{to{translate:0 -12px}}
.marquee{position:absolute;left:0;right:0;bottom:60px;overflow:hidden;border-block:1px solid rgba(246,243,236,.14);padding:12px 0;z-index:2}
.marquee-track{display:flex;gap:44px;width:max-content;animation:slide 40s linear infinite;font:500 13px/1 var(--f-mono);letter-spacing:.1em;color:var(--muted-l)}
.marquee-track span::after{content:"•";margin-left:44px;color:var(--orange)}
@keyframes slide{to{transform:translateX(-33.333%)}}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding-top:130px}.card-stage{order:2;padding-bottom:50px}.hero-inner{margin-left:0}}

/* ---------- overlapping sheets (cta.gallery / scrolltide) ---------- */
.sheet{position:relative;border-radius:var(--r) var(--r) 0 0;margin-top:calc(var(--r) * -1);padding:clamp(70px,9vw,130px) 0 calc(clamp(70px,9vw,130px) + var(--r));overflow:hidden}
.sheet.light{background:var(--paper);color:var(--text-d)}
.sheet.paper{background:var(--paper-2);color:var(--text-d)}
.sheet.dark{background:var(--ink);color:var(--text-l)}
.sheet .wrap{position:relative;z-index:2}
#problem{margin-top:-34px;z-index:2}

/* ---------- problem ---------- */
.three-cards{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:14px;align-items:center;margin-bottom:6px}
.arrow{font:600 30px var(--f-head);color:var(--orange-d)}
.city-card{display:flex;flex-direction:column;gap:30px;aspect-ratio:1.586;border-radius:20px;padding:20px 22px;color:#fff;box-shadow:0 24px 40px -22px rgba(15,42,61,.55);transition:transform .3s}
.city-card:hover{transform:translateY(-6px) rotate(-1deg)}
.c1{background:linear-gradient(135deg,#2C7A5B,#16503A)}
.c2{background:linear-gradient(135deg,#2C5DB1,#173670)}
.c3{background:linear-gradient(135deg,#B8478E,#7A2459)}
.cc-label{font:500 11px/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;opacity:.8}
.city-card strong{font:700 clamp(20px,2.4vw,30px)/1 var(--f-head);letter-spacing:-.03em}
.cc-bal{margin-top:auto;font:700 20px/1 var(--f-head)}
.cc-bal small{font:500 11px var(--f-mono);opacity:.75;letter-spacing:.04em}
@media(max-width:760px){.three-cards{grid-template-columns:1fr}.arrow{transform:rotate(90deg);justify-self:center}.city-card{aspect-ratio:auto;min-height:150px}}
.pains,.feat,.pay{display:grid;gap:18px;margin-top:56px}
.pains,.pay{grid-template-columns:repeat(3,1fr)}
.feat{grid-template-columns:repeat(4,1fr);margin-top:44px}
.pains article,.feat article,.pay article{background:#fff;border-radius:26px;padding:26px 26px 30px;box-shadow:0 1px 0 rgba(15,42,61,.06),0 24px 40px -30px rgba(15,42,61,.35);transition:transform .3s}
.pains article:hover,.feat article:hover,.pay article:hover{transform:translateY(-6px)}
.paper .pay article,.paper .feat article{background:var(--paper)}
.ic{width:78px;height:78px;margin-bottom:18px;filter:drop-shadow(0 8px 10px rgba(15,42,61,.14))}
.pains h3,.feat h3,.pay h3{margin-bottom:8px}
.pains p,.feat p,.pay p{color:var(--muted-d);font-size:16px}
@media(max-width:980px){.feat{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.pains,.pay,.feat{grid-template-columns:1fr}}

/* ---------- idea ---------- */
.trio{display:flex;justify-content:center;gap:clamp(14px,4vw,56px);flex-wrap:wrap;margin:10px 0 56px}
.trio div{display:flex;flex-direction:column;align-items:center}
.trio b{font:800 clamp(80px,14vw,190px)/.9 var(--f-head);letter-spacing:-.07em;color:var(--ink)}
.trio div:nth-child(3) b{color:var(--orange-d)}
.trio span{font:500 13px/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted-d);margin-top:8px}
.slogan{font:600 clamp(28px,4.2vw,56px)/1.1 var(--f-head);letter-spacing:-.04em}
.slogan em{color:var(--orange-d);font-size:1.1em}

/* ---------- how ---------- */
.how{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,80px);align-items:center;margin-top:50px}
.steps{list-style:none;padding:0;display:flex;flex-direction:column;gap:6px}
.steps li{display:flex;gap:20px;padding:20px 22px;border-radius:20px;border:1px solid transparent;opacity:.45;transition:.35s}
.steps li span{font:500 13px/1.9 var(--f-mono);color:var(--orange)}
.steps li p{color:var(--muted-l);font-size:15px;margin-top:4px}
.steps li.on{opacity:1;background:rgba(246,243,236,.07);border-color:rgba(246,243,236,.16)}
.validator{background:linear-gradient(160deg,var(--ink-2),#0C2132);border:1px solid rgba(246,243,236,.16);border-radius:30px;padding:26px;display:flex;flex-direction:column;gap:18px;box-shadow:0 40px 70px -40px #000}
.v-screen{background:#06141D;border-radius:16px;padding:18px 20px;border:1px solid rgba(246,243,236,.1);display:flex;flex-direction:column;gap:6px;min-height:92px}
.v-state{font:600 26px/1 var(--f-head);color:var(--orange);letter-spacing:-.02em;transition:color .3s}
.v-line{font:500 13px var(--f-mono);color:var(--muted-l)}
.v-pad{align-self:center;display:grid;place-items:center;width:130px;height:130px;border-radius:50%;background:radial-gradient(circle,rgba(242,140,91,.28),rgba(242,140,91,.05) 70%);border:1.5px dashed rgba(242,140,91,.6);color:var(--orange)}
.validator.run .v-pad{animation:ring 1s ease-out}
@keyframes ring{0%{box-shadow:0 0 0 0 rgba(242,140,91,.7)}100%{box-shadow:0 0 0 46px rgba(242,140,91,0)}}
.v-flow{display:flex;gap:8px}
.v-flow i{flex:1;height:6px;border-radius:6px;background:rgba(246,243,236,.15);transition:background .3s}
.v-flow i.on{background:var(--orange)}
.switch{display:flex;align-items:center;gap:12px;font:500 14px var(--f-body);color:var(--muted-l);cursor:pointer}
.switch input{position:absolute;opacity:0}
.switch .track{width:44px;height:26px;border-radius:26px;background:rgba(246,243,236,.2);position:relative;transition:.25s;flex:none}
.switch .track::after{content:"";position:absolute;left:3px;top:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:.25s}
.switch input:checked + .track{background:var(--orange)}
.switch input:checked + .track::after{transform:translateX(18px)}
.switch input:focus-visible + .track{outline:3px solid var(--orange);outline-offset:3px}
.v-note{font:500 12px/1.5 var(--f-mono);color:var(--muted-l)}
@media(max-width:860px){.how{grid-template-columns:1fr}}

/* ---------- journey ---------- */
.route{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;position:relative;margin-bottom:26px}
.route::before{content:"";position:absolute;left:8%;right:8%;top:54px;border-top:3px dashed rgba(15,42,61,.25);z-index:0}
.stop{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:10px;background:transparent;border:0;padding:8px 4px 14px;border-radius:24px;cursor:pointer;color:var(--text-d);font:inherit;transition:background .25s,transform .25s}
.stop h3{font-size:20px}.stop p{font-size:13px;color:var(--muted-d)}
.stop .plate{transition:transform .25s,background .25s}
.stop:hover .plate{transform:translateY(-4px)}
.stop.on{background:#fff;box-shadow:0 20px 34px -24px rgba(15,42,61,.5)}
.stop.on .plate{background:var(--orange);transform:translateY(-4px) rotate(-2deg)}
@media(max-width:780px){.route{grid-template-columns:repeat(5,minmax(120px,1fr));overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}.stop{scroll-snap-align:center}.route::before{display:none}}
.city-detail{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;background:#fff;border-radius:28px;padding:clamp(22px,3vw,40px);box-shadow:0 30px 50px -36px rgba(15,42,61,.5)}
.city-detail h3{font-size:clamp(34px,4vw,52px);margin-bottom:12px}
.city-detail p{color:var(--muted-d)}
.city-detail .label{margin-bottom:14px}
.city-detail dl{display:flex;flex-direction:column;gap:2px}
.city-detail dl div{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid rgba(15,42,61,.1)}
.city-detail dl div:last-child{border:0}
.city-detail dt{font:500 12px/1.8 var(--f-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--orange-d);width:72px;flex:none}
.city-detail dd{font-weight:500}
@media(max-width:780px){.city-detail{grid-template-columns:1fr}}

/* ---------- layer ---------- */
.layer{display:flex;flex-direction:column;align-items:stretch}
.layer-top{display:flex;flex-wrap:wrap;gap:10px;align-items:center;background:var(--ink);color:var(--text-l);border-radius:24px;padding:22px 26px}
.layer-top strong{font:700 22px var(--f-head);letter-spacing:-.02em;margin-right:auto;color:var(--orange)}
.layer-top span{font:500 13px var(--f-mono);border:1px solid rgba(246,243,236,.3);border-radius:999px;padding:8px 14px}
.layer-links{display:grid;grid-template-columns:repeat(5,1fr);height:44px}
.layer-links i{justify-self:center;width:3px;height:100%;background:repeating-linear-gradient(var(--orange-d) 0 6px,transparent 6px 11px)}
.layer-cities{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.layer-cities div{background:var(--paper);border-radius:20px;padding:18px;display:flex;flex-direction:column;gap:8px;align-items:flex-start;border:2px dashed rgba(15,42,61,.22)}
.layer-cities h3{font-size:19px}.layer-cities p{font-size:14px;color:var(--muted-d)}
@media(max-width:860px){.layer-cities{grid-template-columns:1fr 1fr}.layer-links{display:none}.layer-top{margin-bottom:12px}}

/* ---------- game ---------- */
.play{padding-bottom:calc(clamp(70px,9vw,130px) + var(--r))}
.game{max-width:760px;margin:0 auto;background:linear-gradient(170deg,rgba(23,59,84,.9),rgba(10,29,43,.95));border:1px solid rgba(246,243,236,.18);border-radius:32px;padding:22px;text-align:left;box-shadow:0 50px 90px -40px #000;backdrop-filter:blur(6px)}
.g-hud{display:flex;flex-direction:column;gap:16px;padding:4px 4px 20px;border-bottom:1px solid rgba(246,243,236,.12)}
.g-route{display:flex;align-items:center;justify-content:space-between;gap:4px;position:relative}
.g-route .plate{height:30px;opacity:.4;transition:.3s;transform:scale(.92)}
.g-route .plate i{font-size:21px;padding:0 7px 0 6px}
.g-route .plate b{width:12px;font-size:7px}
.g-route .plate.done{opacity:1;background:var(--orange)}
.g-route .plate.now{opacity:1;transform:scale(1.08);box-shadow:0 0 0 3px var(--orange)}
.g-route hr{flex:1;border:0;border-top:2px dashed rgba(246,243,236,.25)}
.g-route hr.done{border-color:var(--orange)}
.g-stats{display:flex;justify-content:space-between;font:500 12px var(--f-mono);color:var(--muted-l);text-transform:uppercase;letter-spacing:.06em;gap:8px;flex-wrap:wrap}
.g-stats b{color:#fff;font-size:16px;margin-left:6px;font-family:var(--f-head);letter-spacing:-.01em}
.g-screen{display:none;padding:26px 8px 8px;animation:fade .4s}
.g-screen.on{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}}
.g-screen h3{font-size:clamp(26px,3.4vw,38px);margin-bottom:18px}
.g-rules{list-style:none;padding:0;display:flex;flex-direction:column;gap:12px;margin-bottom:28px;color:var(--muted-l)}
.g-rules li{padding-left:20px;position:relative}
.g-rules li::before{content:"";position:absolute;left:0;top:.65em;width:8px;height:8px;border-radius:2px;background:var(--orange)}
.g-rules b{color:#fff;font-weight:600}
kbd{font:500 12px var(--f-mono);background:rgba(246,243,236,.14);border:1px solid rgba(246,243,236,.25);border-bottom-width:3px;padding:2px 8px;border-radius:6px;color:#fff}
.g-leg{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.g-leg div{display:flex;flex-direction:column}
.g-leg strong{font:700 24px/1 var(--f-head);letter-spacing:-.03em}
.g-leg span:not(.plate):not(.badge){font:500 13px var(--f-mono);color:var(--muted-l);margin-top:6px;text-transform:uppercase;letter-spacing:.06em}
.badge{margin-left:auto;font:500 11px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--sea);color:var(--sea);border-radius:999px;padding:7px 12px}
.badge[hidden]{display:none}
.reader{background:#06141D;border-radius:22px;border:1px solid rgba(246,243,236,.12);padding:28px 22px 22px;cursor:pointer;touch-action:manipulation;user-select:none;-webkit-user-select:none}
.reader.ok{animation:ok .45s}.reader.bad{animation:bad .4s}
@keyframes ok{0%{box-shadow:0 0 0 0 rgba(95,200,140,.7)}100%{box-shadow:0 0 0 30px rgba(95,200,140,0)}}
@keyframes bad{0%,100%{transform:none}25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
.track{position:relative;height:60px;border-radius:14px;background:repeating-linear-gradient(90deg,rgba(246,243,236,.06) 0 2px,transparent 2px 24px),#0E2535;border:1px solid rgba(246,243,236,.14);overflow:hidden}
.zone{position:absolute;top:0;bottom:0;background:linear-gradient(180deg,rgba(242,140,91,.5),rgba(242,140,91,.3));border-inline:2px solid var(--orange);transition:opacity .2s}
.zone.hide-half{-webkit-mask-image:linear-gradient(90deg,#000 0 50%,transparent 50%);mask-image:linear-gradient(90deg,#000 0 50%,transparent 50%);opacity:.8}
.needle{position:absolute;top:-4px;bottom:-4px;width:6px;margin-left:-3px;border-radius:6px;background:#fff;box-shadow:0 0 16px 3px rgba(255,255,255,.65)}
.g-msg{text-align:center;margin-top:18px;font:600 18px/1.2 var(--f-head);min-height:22px;letter-spacing:-.01em}
.g-msg.ok{color:#79D9A0}.g-msg.bad{color:#FF8A7A}
.btn-tap{width:100%;margin-top:16px;padding:22px;font-size:20px;letter-spacing:.08em}
.g-score{display:flex;align-items:baseline;gap:12px;margin-bottom:22px}
.g-score b{font:800 clamp(64px,10vw,104px)/.9 var(--f-head);letter-spacing:-.06em;color:var(--orange)}
.g-score span{font:500 13px var(--f-mono);text-transform:uppercase;color:var(--muted-l);letter-spacing:.08em}
.g-end-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:22px}
.g-end-stats div{background:rgba(246,243,236,.06);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:4px}
.g-end-stats b{font:700 24px var(--f-head);letter-spacing:-.03em}
.g-end-stats span{font:500 11px/1.3 var(--f-mono);color:var(--muted-l);text-transform:uppercase;letter-spacing:.05em}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.compare div{border-radius:18px;padding:16px 18px}
.compare h4{font:700 15px var(--f-head);margin-bottom:8px}
.compare p{font-size:14px;line-height:1.6}
.compare .old{background:rgba(255,138,122,.1);border:1px solid rgba(255,138,122,.3);color:#FFC9C0}
.compare .new{background:rgba(121,217,160,.1);border:1px solid rgba(121,217,160,.35);color:#C6F2D8}
#gAgain{margin-top:22px}
@media(max-width:560px){.g-end-stats,.compare{grid-template-columns:1fr}.badge{margin-left:0}}

/* ---------- model / chal ---------- */
.chal{margin-top:50px;border-top:1px solid rgba(15,42,61,.18)}
.chal details{border-bottom:1px solid rgba(15,42,61,.18)}
.chal summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:minmax(120px,.5fr) 1fr 24px;gap:20px;align-items:baseline;padding:24px 4px}
.chal summary::-webkit-details-marker{display:none}
.chal summary::after{content:"+";font:500 26px/1 var(--f-mono);color:var(--orange-d);transition:transform .25s;justify-self:end}
.chal details[open] summary::after{transform:rotate(45deg)}
.chal summary span{font:700 clamp(22px,3vw,34px) var(--f-head);letter-spacing:-.03em}
.chal summary em{font-size:20px;color:var(--muted-d)}
.chal details p{padding:0 4px 26px;font-size:18px;max-width:58ch}
@media(max-width:700px){.chal summary{grid-template-columns:1fr 24px}.chal summary em{grid-column:1}.chal summary::after{grid-row:1;grid-column:2}}

/* ---------- roadmap ---------- */
.phases{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:40px 0 34px}
.phases button{text-align:left;font:inherit;color:inherit;background:#fff;border:2px solid transparent;border-radius:24px;padding:22px 24px;display:flex;flex-direction:column;gap:8px;cursor:pointer;transition:.25s}
.phases button:hover{transform:translateY(-3px)}
.phases button.on{border-color:var(--orange-d);box-shadow:0 24px 40px -28px rgba(194,65,12,.6)}
.phases small{font:500 12px var(--f-mono);color:var(--orange-d);text-transform:uppercase;letter-spacing:.07em}
.phases strong{font:700 24px/1.1 var(--f-head);letter-spacing:-.03em}
.phases span{color:var(--muted-d);font-size:15px}
.grid81-wrap{background:var(--ink);border-radius:30px;padding:clamp(18px,3vw,36px);color:var(--text-l)}
.grid81{display:grid;grid-template-columns:repeat(9,1fr);gap:clamp(4px,.9vw,10px)}
.grid81 span{aspect-ratio:1.5;display:grid;place-items:center;border-radius:6px;border:1.5px solid rgba(246,243,236,.18);font:700 clamp(11px,1.9vw,22px)/1 var(--f-plate);letter-spacing:.06em;color:rgba(246,243,236,.35);transition:background .4s,color .4s,border-color .4s,transform .4s}
.grid81 span.on{background:var(--plate);color:#111;border-color:var(--plate)}
.grid81 span.pop{transform:scale(1.14)}
.grid81 span.hero-c{background:var(--orange);border-color:var(--orange);color:var(--ink)}
.grid-count{margin-top:22px;font:500 14px var(--f-mono);color:var(--muted-l)}
.grid-count b{font:800 40px var(--f-head);letter-spacing:-.04em;color:var(--orange);margin-right:6px}
@media(max-width:760px){.phases{grid-template-columns:1fr}.grid81{grid-template-columns:repeat(9,1fr)}}

/* ---------- close + footer ---------- */
.close{padding-bottom:calc(clamp(90px,12vw,170px) + var(--r))}
.close h2{max-width:14ch;font-size:clamp(44px,8vw,112px)}
.close .sub{margin-bottom:36px}
.footer{background:var(--ink-2);color:var(--text-l);margin-top:calc(var(--r) * -1);border-radius:var(--r) var(--r) 0 0;position:relative;z-index:3;overflow:hidden;padding-top:70px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:30px;align-items:start}
.foot-grid strong{font:800 22px var(--f-head);letter-spacing:-.02em;display:block;margin-bottom:10px}
.foot-grid p{color:var(--muted-l);font-size:15px}
.footer nav{display:flex;gap:22px;flex-wrap:wrap}
.footer nav a{text-decoration:none;font:500 14px var(--f-body);color:var(--muted-l)}
.footer nav a:hover{color:#fff}
.legal{grid-column:1/-1;font:500 12px var(--f-mono)!important;border-top:1px solid rgba(246,243,236,.14);padding-top:22px;margin-top:20px}
.wordmark{font:800 clamp(90px,25.5vw,420px)/.78 var(--f-head);letter-spacing:-.06em;text-align:center;color:var(--ink);margin-top:20px;transform:translateY(22%);white-space:nowrap;user-select:none}
@media(max-width:700px){.foot-grid{grid-template-columns:1fr}}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s,transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .rv{opacity:1;transform:none}
}

/* ---------- iOS / touch safety: lighter GPU load ----------
   Large animated blurs + full-bleed blend modes + backdrop-filter can crash iOS Safari. */
@media (max-width:900px), (hover:none){
  .aurora i{filter:blur(40px);animation:none;width:420px!important;height:420px!important}
  .grain{mix-blend-mode:normal;opacity:.06}
  .nav,.nav.stuck{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(15,42,61,.92)}
  .game{-webkit-backdrop-filter:none;backdrop-filter:none}
  .card-stage{perspective:none}
  .ycard{transform:rotateZ(-4deg)!important}
  .float-plates .plate{animation:none}
}