/* Lean · 薄肌 — official site
   Design language: deep-space black, ice-blue chrome, glass. Mirrors the app's liquid-metal L. */

:root{
  --bg:#04060a;
  --bg-2:#080c12;
  --ink:#eef6fb;
  --ink-2:#c9d6df;
  --mute:#7f8f9c;
  --line:rgba(184,227,245,.12);
  --ice:#76d5f8;
  --steel:#b8e3f5;
  --deep:#12334a;
  --lift:#ff8a4c;
  --sip:#4fb3ff;
  --sleep:#a68bff;
  --radius:28px;
  --ease:cubic-bezier(.22,1,.36,1);
  --ease-io:cubic-bezier(.65,0,.35,1);
  --pad:clamp(20px,5vw,80px);
  --font:"SF Pro Display","PingFang SC","HarmonyOS Sans SC","MiSans",-apple-system,BlinkMacSystemFont,"Inter","Segoe UI","Microsoft YaHei",sans-serif;
  --serif:"New York","Iowan Old Style","Songti SC","Noto Serif SC",Georgia,serif;
  --mono:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;text-rendering:optimizeLegibility}
img,svg,video,canvas{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--ice);color:#021018}
:focus-visible{outline:2px solid var(--ice);outline-offset:4px;border-radius:8px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:fixed;left:16px;top:-60px;z-index:999;background:var(--ice);color:#021018;padding:10px 16px;border-radius:12px;transition:top .3s}
.skip:focus{top:16px}

/* ───────── grain + ambient ───────── */
.grain{pointer-events:none;position:fixed;inset:-50%;z-index:90;opacity:.055;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain 1.2s steps(6) infinite}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}40%{transform:translate(2%,-3%)}60%{transform:translate(-2%,-1%)}80%{transform:translate(3%,3%)}100%{transform:translate(0,0)}}

/* ───────── cursor ───────── */
.cursor{position:fixed;left:0;top:0;z-index:95;pointer-events:none;mix-blend-mode:difference}
.cursor__dot{width:8px;height:8px;margin:-4px 0 0 -4px;border-radius:50%;background:#fff}
.cursor__ring{position:fixed;left:0;top:0;width:44px;height:44px;margin:-22px 0 0 -22px;border-radius:50%;border:1px solid rgba(255,255,255,.7);
  transition:width .45s var(--ease),height .45s var(--ease),margin .45s var(--ease),background .45s,border-color .45s}
.cursor.is-hover .cursor__ring{width:84px;height:84px;margin:-42px 0 0 -42px;background:#fff;border-color:#fff}
.cursor__label{position:fixed;left:0;top:0;transform:translate(-50%,-50%);font-size:12px;letter-spacing:.14em;color:#000;opacity:0;transition:opacity .3s;mix-blend-mode:normal;font-weight:600}
.cursor.has-label .cursor__label{opacity:1}
@media (hover:none),(pointer:coarse){.cursor{display:none}}

/* ───────── app launch animation ───────── */
.loader{position:fixed;inset:0;z-index:100;background:#04070a;display:grid;place-items:center;overflow:hidden}
.loader[hidden],.reduced .loader{display:none}
.loader__video{
  width:min(100vw,72svh,620px);max-height:100svh;aspect-ratio:3/4;object-fit:contain;
  -webkit-mask-image:radial-gradient(ellipse closest-side,#000 68%,transparent 100%);
  mask-image:radial-gradient(ellipse closest-side,#000 68%,transparent 100%);
}
.loader__skip{
  position:absolute;right:var(--pad);bottom:max(20px,env(safe-area-inset-bottom));min-height:44px;
  padding:6px 14px;border:1px solid var(--line);border-radius:999px;color:var(--ink-2);font-size:13px;
}

/* ───────── nav ───────── */
.nav{position:fixed;inset:0 0 auto 0;z-index:80;display:flex;align-items:center;justify-content:space-between;padding:18px var(--pad);
  transition:transform .6s var(--ease),background .4s,backdrop-filter .4s}
.nav.is-scrolled{background:rgba(4,6,10,.55);backdrop-filter:saturate(160%) blur(18px);-webkit-backdrop-filter:saturate(160%) blur(18px);border-bottom:1px solid var(--line)}
.nav.is-hidden{transform:translateY(-110%)}
.brand{display:flex;align-items:center;gap:12px;font-weight:600;letter-spacing:.02em}
.brand img{width:34px;height:34px;border-radius:9px;box-shadow:0 0 0 1px rgba(255,255,255,.08),0 6px 24px rgba(118,213,248,.25)}
.brand small{font-weight:400;color:var(--mute);margin-left:2px}
.nav__links{display:flex;gap:6px;align-items:center}
.nav__links a{padding:8px 14px;border-radius:999px;font-size:14px;color:var(--ink-2);transition:color .3s,background .3s}
.nav__links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav__links .lang{font-family:var(--mono);font-size:12px;letter-spacing:.08em;border:1px solid var(--line)}
@media (max-width:860px){.nav__links a:not(.btn):not(.lang){display:none}}

/* ───────── buttons ───────── */
.btn{position:relative;display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:999px;font-weight:600;font-size:15px;letter-spacing:.01em;
  background:linear-gradient(180deg,#f4fbff,#b9dff2);color:#04131d;box-shadow:inset 0 1px 0 rgba(255,255,255,.9),0 10px 40px -10px rgba(118,213,248,.65);overflow:hidden;isolation:isolate;will-change:transform}
.btn::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.9) 50%,transparent 70%);transform:translateX(-120%);transition:transform .9s var(--ease)}
.btn:hover::after{transform:translateX(120%)}
.btn--ghost{background:rgba(255,255,255,.04);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line);backdrop-filter:blur(10px)}
.btn--sm{padding:9px 16px;font-size:13px}
.btn svg{width:18px;height:18px}

/* ───────── layout ───────── */
main{position:relative;z-index:1}
.section{position:relative;padding:clamp(100px,16vw,220px) var(--pad)}
.wrap{max-width:1320px;margin:0 auto}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--ice)}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor;opacity:.6}
.h-xl{font-size:clamp(56px,11vw,188px);line-height:.92;letter-spacing:-.045em;font-weight:650;margin:0}
.h-l{font-size:clamp(40px,6.4vw,104px);line-height:1;letter-spacing:-.035em;font-weight:620;margin:0}
.h-m{font-size:clamp(30px,3.8vw,58px);line-height:1.08;letter-spacing:-.025em;font-weight:600;margin:0}
.lead{font-size:clamp(18px,1.5vw,22px);color:var(--ink-2);max-width:40ch;line-height:1.65}
.serif{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.02em}
.chrome{background:linear-gradient(100deg,#6b8fa6 0%,#eef9ff 18%,#7fb4d2 34%,#f6fcff 50%,#4c7f9f 66%,#cdeefc 82%,#6b8fa6 100%);background-size:200% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;animation:sheen 8s linear infinite}
@keyframes sheen{to{background-position:-200% 0}}
.mute{color:var(--mute)}

/* split text helpers */
.split-line{display:block;overflow:hidden;padding-bottom:.08em;margin-bottom:-.08em}
.split-line>span{display:inline-block;will-change:transform}
.char{display:inline-block;will-change:transform,opacity}

/* ───────── hero ───────── */
.hero{position:relative;min-height:100svh;display:grid;align-items:end;padding:0 var(--pad) clamp(36px,6vw,80px);overflow:hidden}
.hero__gl{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero__fallback{position:absolute;inset:0;z-index:0;background:
  radial-gradient(60% 50% at 70% 40%,rgba(118,213,248,.28),transparent 60%),
  radial-gradient(40% 40% at 20% 80%,rgba(52,127,167,.35),transparent 60%),var(--bg)}
.hero__vignette{position:absolute;inset:0;z-index:1;background:radial-gradient(120% 80% at 50% 30%,transparent 40%,rgba(4,6,10,.85) 100%),linear-gradient(180deg,transparent 60%,var(--bg))}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:36px;width:100%;max-width:1440px;margin:0 auto}
.hero__title{max-width:62vw;font-size:clamp(64px,11.5vw,200px);line-height:.88;letter-spacing:-.055em;font-weight:680;margin:0}
.hero__title .serif{font-weight:400}
.hero__meta{display:grid;grid-template-columns:minmax(0,440px) auto;align-items:end;gap:24px 48px;max-width:58vw}
.hero__meta .hero__chips{grid-column:1/-1}
.hero__meta p{margin:0}
.hero__ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero__phone{position:absolute;z-index:2;right:clamp(24px,9vw,200px);top:50%;width:clamp(220px,21vw,330px);transform:translateY(-54%);perspective:1400px}
.hero__scroll{position:absolute;z-index:3;left:50%;bottom:22px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;font-family:var(--mono);font-size:11px;letter-spacing:.3em;color:var(--mute)}
.hero__scroll i{width:1px;height:46px;background:linear-gradient(var(--ice),transparent);animation:drip 2.2s var(--ease-io) infinite;transform-origin:top}
@keyframes drip{0%{transform:scaleY(0)}50%{transform:scaleY(1)}100%{transform:scaleY(1);opacity:0}}
.hero__chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;font-size:13px;color:var(--ink-2);background:rgba(255,255,255,.04);box-shadow:inset 0 0 0 1px var(--line);backdrop-filter:blur(12px)}
.chip b{width:7px;height:7px;border-radius:50%;background:var(--ice);box-shadow:0 0 12px var(--ice)}
@media (max-width:980px){
  .hero{align-items:end}
  .hero__title,.hero__meta{max-width:none}
  .hero__meta{grid-template-columns:1fr}
  .hero__phone{right:-14vw;top:30%;width:58vw;max-width:300px;opacity:.5}
}

/* ───────── iPhone Air frame ───────── */
.phone{position:relative;aspect-ratio:720/1503;isolation:isolate;transform-style:preserve-3d}
.phone__screen{
  /* Display rectangle from 映刻's iPhone Air portrait catalog. */
  position:absolute;inset:2.4653% 4.2754%;overflow:hidden;border-radius:12%/5.5%;background:#0b1018;
  -webkit-mask:url(../img/iphone-air-screen-mask.webp) center/100% 100% no-repeat;
  mask:url(../img/iphone-air-screen-mask.webp) center/100% 100% no-repeat;
}
.phone__screen picture,.phone__screen img{width:100%;height:100%;display:block}
.phone__screen img{object-fit:contain}
.phone__screen img+img{position:absolute;inset:0}
.phone__frame{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.hero__phone .phone{filter:drop-shadow(0 24px 32px rgba(0,5,12,.62))}
.preview-image:not(.is-decoded){background:var(--preview) center/contain no-repeat}

/* ───────── marquee ───────── */
.marquee{position:relative;padding:clamp(28px,4vw,48px) 0;border-block:1px solid var(--line);overflow:hidden;background:linear-gradient(90deg,var(--bg),#07111a,var(--bg))}
.marquee__track{display:flex;width:max-content;will-change:transform}
.marquee__item{display:flex;align-items:center;gap:clamp(24px,4vw,60px);padding-right:clamp(24px,4vw,60px);font-size:clamp(44px,8vw,128px);font-weight:650;letter-spacing:-.04em;line-height:1;white-space:nowrap}
.marquee__item .o{-webkit-text-stroke:1.2px rgba(184,227,245,.55);color:transparent}
.marquee__item i{width:.32em;height:.32em;border-radius:50%;background:linear-gradient(135deg,#eef9ff,#3b86b3);flex:none}

/* ───────── manifesto ───────── */
.manifesto{font-size:clamp(30px,4.6vw,72px);line-height:1.16;letter-spacing:-.03em;font-weight:600;max-width:20ch}
.manifesto .w{opacity:.14;transition:none}
.manifesto em{font-style:normal;color:var(--ice)}

/* ───────── pillars (sticky scrollytelling) ───────── */
/* Clip the decorative glow horizontally without creating a scroll container for the sticky stage. */
.pillars{position:relative;padding:0 var(--pad);overflow-x:clip}
.pillars__grid{display:grid;grid-template-columns:1.2fr minmax(260px,360px) .7fr;gap:clamp(24px,5vw,80px);max-width:1440px;margin:0 auto}
.pillars__steps{grid-column:1}
.pillar{min-height:100vh;display:flex;flex-direction:column;justify-content:center;gap:22px;max-width:520px}
.pillar__no{font-family:var(--mono);font-size:13px;letter-spacing:.2em;color:var(--mute)}
.pillar__big{font-size:clamp(120px,16vw,260px);line-height:.8;font-weight:700;letter-spacing:-.06em}
.pillar[data-tone=lift] .pillar__big{background:linear-gradient(180deg,#ffd2b6,var(--lift));-webkit-background-clip:text;background-clip:text;color:transparent}
.pillar[data-tone=sip] .pillar__big{background:linear-gradient(180deg,#d6f3ff,var(--sip));-webkit-background-clip:text;background-clip:text;color:transparent}
.pillar[data-tone=sleep] .pillar__big{background:linear-gradient(180deg,#e7defe,var(--sleep));-webkit-background-clip:text;background-clip:text;color:transparent}
.pillar ul{margin:0;padding:0;list-style:none;display:grid;gap:10px;color:var(--ink-2)}
.pillar li{display:flex;gap:12px;align-items:baseline}
.pillar li::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--ice);transform:translateY(-3px)}
.pillars__stage{grid-column:2;position:sticky;top:0;height:100vh;display:grid;place-items:center}
.pillars__stage .phone{width:100%}
.pillars__glow{position:absolute;width:140%;aspect-ratio:1;border-radius:50%;filter:blur(80px);opacity:.5;background:var(--lift);transition:background 1s var(--ease)}
.pillars__aside{grid-column:3;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;justify-content:center;gap:18px}
.meter{display:grid;gap:8px}
.meter span{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--mute);text-transform:uppercase}
.meter__bar{height:4px;border-radius:9px;background:rgba(255,255,255,.07);overflow:hidden}
.meter__bar i{display:block;height:100%;width:0;border-radius:inherit}
.meter[data-k=lift] i{background:var(--lift)}.meter[data-k=sip] i{background:var(--sip)}.meter[data-k=sleep] i{background:var(--sleep)}
@media (max-width:980px){
  .pillars__grid{grid-template-columns:1fr}
  .pillars__stage{grid-column:1;grid-row:1;position:sticky;top:0;height:100vh;z-index:0;opacity:.28}
  .pillars__stage .phone{width:min(56vw,260px)}
  .pillars__steps{grid-column:1;grid-row:1;position:relative;z-index:1}
  .pillars__aside{display:none}
  .pillar{min-height:90vh}
}

/* ───────── exam (pull-up counter) ───────── */
.exam{position:relative;height:300vh}
.exam__pin{position:sticky;top:0;height:100vh;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:clamp(24px,5vw,80px);padding:0 var(--pad);max-width:1440px;margin:0 auto;overflow:hidden}
.exam__copy .h-m{margin:18px 0 10px}
.exam__count{display:inline-flex;align-items:flex-start;gap:.06em;font-size:clamp(160px,24vw,380px);line-height:.8;font-weight:700;letter-spacing:-.08em;font-variant-numeric:tabular-nums}
.exam__count b{display:inline-block;min-width:.62em;font-weight:inherit}
.exam__count small{font-size:.14em;letter-spacing:0;font-weight:500;color:var(--mute);margin-top:.3em}
.exam.is-done .exam__count b{background:linear-gradient(180deg,#eafff5,#5fe3a8);-webkit-background-clip:text;background-clip:text;color:transparent}
.exam__ok{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(53,214,141,.14);color:#6ff0b1;font-weight:600;font-size:15px;box-shadow:inset 0 0 0 1px rgba(111,240,177,.35);opacity:0;transform:translateY(10px)}
.exam__visual{position:relative;justify-self:center;width:min(100%,370px,43svh)}
.exam__visual img{width:100%}
.exam__scan{position:absolute;left:8%;right:8%;top:6%;height:2px;border-radius:2px;background:#7ff3c0;box-shadow:0 0 18px 4px rgba(127,243,192,.55),0 0 60px 10px rgba(127,243,192,.25);opacity:0;pointer-events:none}
.exam__visual::after{content:"";position:absolute;inset:4% 6%;border-radius:40px;box-shadow:0 0 0 1px rgba(127,243,192,0);transition:box-shadow .6s var(--ease)}
.exam.is-done .exam__visual::after{box-shadow:0 0 0 2px rgba(127,243,192,.8),0 0 80px rgba(127,243,192,.35)}
.exam__note{font-size:14px;color:var(--mute);max-width:44ch}
.exam__feedback{margin:22px 0 14px}
.ticks{display:flex;gap:8px;margin-top:8px}
.ticks i{width:28px;height:6px;border-radius:9px;background:rgba(255,255,255,.08);transition:background .4s var(--ease),box-shadow .4s}
.ticks i.on{background:var(--ice);box-shadow:0 0 16px rgba(118,213,248,.7)}
@media (max-width:980px){.exam__pin{grid-template-columns:1fr;align-content:end;padding-bottom:10vh}.exam__visual{position:absolute;right:var(--pad);top:9vh;width:min(42vw,220px,23svh)}.exam__count{font-size:34vw}.exam .lead{font-size:16px}.exam__note{display:none}}

/* ───────── horizontal features ───────── */
.hscroll{position:relative;overflow:hidden}
.hscroll__head{padding:clamp(100px,14vw,180px) var(--pad) 40px;display:flex;justify-content:space-between;align-items:end;gap:40px;flex-wrap:wrap;max-width:1440px;margin:0 auto}
.hscroll__track{display:flex;gap:clamp(16px,2vw,28px);padding:20px var(--pad) clamp(80px,10vw,140px);width:max-content;will-change:transform}
.card{position:relative;flex:none;width:clamp(300px,34vw,520px);aspect-ratio:4/5;border-radius:var(--radius);overflow:hidden;isolation:isolate;
  background:linear-gradient(160deg,#0e1822,#070b10);box-shadow:inset 0 0 0 1px var(--line);display:flex;flex-direction:column;justify-content:space-between;padding:clamp(22px,2.4vw,34px);transform-style:preserve-3d}
.card::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(400px circle at var(--mx,50%) var(--my,0%),rgba(118,213,248,.18),transparent 45%);opacity:0;transition:opacity .4s}
.card:hover::before{opacity:1}
.card__k{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--ice)}
.card h3{font-size:clamp(26px,2.4vw,38px);line-height:1.1;letter-spacing:-.02em;margin:10px 0 10px;font-weight:620}
.card p{margin:0;color:var(--ink-2);font-size:15px;max-width:34ch}
.card__media{
  flex:none;align-self:center;width:min(46%,192px,23svh);margin-block-start:28px;
  transform:rotate(-8deg);transition:transform .9s var(--ease);
}
.card>div:first-child{position:relative;z-index:1}
.card:hover .card__media{transform:rotate(-4deg) translateY(-4%)}
.card__media .phone{filter:drop-shadow(0 14px 18px rgba(0,0,0,.45))}
.card--wide{width:clamp(320px,52vw,820px);aspect-ratio:16/10}
.card--wide .card__media{width:min(40%,192px,23svh)}
.card--accent{background:linear-gradient(160deg,#cfeefd 0%,#7fb6d6 40%,#1c3b52 100%);color:#03121c}
.card--accent p{color:#0b2333}.card--accent .card__k{color:#0b2333}
@media (min-width:861px){
  .hscroll__head{padding-block:clamp(26px,4.5svh,82px) 16px;gap:clamp(12px,2.5vw,40px)}
  .hscroll__head .h-l{font-size:clamp(36px,min(6.4vw,8.8svh),98px)}
  .hscroll__head>div{min-width:0;flex:1 1 55%}
  .hscroll__head .eyebrow{margin-block:0 12px}
  .hscroll__head .lead{flex:0 1 32%;max-width:40ch;margin:0}
  .hscroll__track{padding-block:12px 32px}
  .card,.card--wide{aspect-ratio:auto}
  .card__media,.card--wide .card__media{margin-block-start:22px}
}
@media (min-width:861px) and (max-height:760px){
  .card__media,.card--wide .card__media{width:min(40%,192px,19svh)}
  html[lang=en] .hscroll__head .h-l{font-size:clamp(32px,7.8svh,72px)}
  html[lang=en] .card{padding:clamp(18px,2.1vw,27px)}
  html[lang=en] .card h3{font-size:clamp(22px,1.85vw,30px)}
}
@media (min-width:861px) and (max-height:650px){
  .card__media,.card--wide .card__media{width:min(40%,192px,15svh)}
  .card__media,.card--wide .card__media{margin-block-start:16px}
  html[lang=en] .card{padding:18px}
  html[lang=en] .card h3{font-size:21px}
}
@media (max-width:860px){
  .hscroll__track{flex-direction:column;width:auto}
  .card,.card--wide{width:100%;aspect-ratio:auto}
  .card .card__media{width:min(60%,228px)}
}

/* ───────── degree certificate ───────── */
.degree{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,6vw,100px);align-items:center;max-width:1320px;margin:0 auto}
.cert{position:relative;aspect-ratio:3/2;perspective:1200px}
.cert__inner{
  position:absolute;inset:0;transform-style:preserve-3d;transition:transform .2s ease-out;
  box-shadow:0 50px 100px -30px rgba(0,0,0,.85);
}
.cert__inner img{width:100%;height:100%;object-fit:contain}
.cert__inner::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at var(--gx,30%) var(--gy,20%),rgba(255,255,255,.85),transparent 40%),
  linear-gradient(115deg,transparent 30%,rgba(118,213,248,.25) 45%,rgba(255,180,220,.2) 55%,transparent 70%);mix-blend-mode:overlay;pointer-events:none}
.levels{display:grid;gap:12px;margin-top:30px}
.level{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;padding:16px 20px;border-radius:18px;background:rgba(255,255,255,.03);box-shadow:inset 0 0 0 1px var(--line)}
.level b{font-family:var(--mono);color:var(--ice);font-size:13px}
.level span{color:var(--mute);font-size:14px}
@media (max-width:980px){.degree{grid-template-columns:1fr}}

/* ───────── stats ───────── */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);max-width:1440px;margin:0 auto}
.stat{padding:40px 24px 10px 0;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat__n{font-size:clamp(56px,7vw,116px);line-height:1;font-weight:650;letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.stat__n sup{font-size:.34em;color:var(--ice);vertical-align:top;margin-left:4px;letter-spacing:0}
.stat p{color:var(--mute);margin:14px 0 0;font-size:15px;max-width:24ch}
@media (max-width:860px){.stats{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:0}.stat{padding-left:0}}

/* ───────── pricing ───────── */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:1100px;margin:60px auto 0}
.plan{position:relative;border-radius:var(--radius);padding:clamp(28px,3vw,44px);background:rgba(255,255,255,.025);box-shadow:inset 0 0 0 1px var(--line);overflow:hidden}
.plan h3{margin:0;font-size:26px;letter-spacing:-.01em}
.plan__price{font-size:clamp(40px,4vw,64px);font-weight:650;letter-spacing:-.04em;margin:18px 0 6px}
.plan ul{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:12px;color:var(--ink-2);font-size:15px}
.plan li{display:flex;gap:12px}
.plan li::before{content:"✓";color:var(--ice);font-weight:700}
.plan--pro{background:linear-gradient(160deg,rgba(118,213,248,.14),rgba(18,51,74,.3) 60%,rgba(4,6,10,.2));box-shadow:inset 0 0 0 1px rgba(118,213,248,.35)}
.plan--pro::after{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:conic-gradient(from var(--a,0deg),transparent 0 70%,#eef9ff 80%,var(--ice) 85%,transparent 95%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:spin 6s linear infinite;pointer-events:none}
@property --a{syntax:"<angle>";inherits:false;initial-value:0deg}
@keyframes spin{to{--a:360deg}}
@media (max-width:860px){.plans{grid-template-columns:1fr}}

/* ───────── FAQ ───────── */
.faq{max-width:1000px;margin:60px auto 0;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:26px 0;font-size:clamp(18px,1.6vw,23px);font-weight:560;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary i{flex:none;width:30px;height:30px;border-radius:50%;box-shadow:inset 0 0 0 1px var(--line);position:relative;transition:transform .5s var(--ease),background .3s}
.faq summary i::before,.faq summary i::after{content:"";position:absolute;left:50%;top:50%;width:11px;height:1.5px;background:var(--ink);transform:translate(-50%,-50%)}
.faq summary i::after{transform:translate(-50%,-50%) rotate(90deg);transition:transform .5s var(--ease)}
.faq details[open] summary i{background:var(--ice)}
.faq details[open] summary i::before,.faq details[open] summary i::after{background:#021018}
.faq details[open] summary i::after{transform:translate(-50%,-50%) rotate(0)}
.faq .a{padding:0 0 28px;color:var(--ink-2);max-width:72ch}
.faq .a p{margin:0 0 10px}

/* ───────── CTA ───────── */
.cta{position:relative;min-height:100svh;display:grid;place-items:center;text-align:center;overflow:hidden;padding:120px var(--pad)}
.cta__bg{position:absolute;inset:-10%;background:url(../img/metal-ribbon.webp) center/cover;filter:saturate(1.1) brightness(.7);opacity:.55;will-change:transform}
.cta__bg::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 60% at 50% 50%,rgba(4,6,10,.2),var(--bg) 85%)}
.cta__inner{position:relative;z-index:1;display:grid;justify-items:center;gap:30px}
.cta__icon{width:120px;height:120px;border-radius:27px;box-shadow:0 30px 80px -10px rgba(118,213,248,.6),0 0 0 1px rgba(255,255,255,.15)}
.qr{display:flex;gap:14px;align-items:center;color:var(--mute);font-size:13px}

/* ───────── footer ───────── */
.footer{padding:60px var(--pad) 40px;border-top:1px solid var(--line);color:var(--mute);font-size:14px}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;max-width:1440px;margin:0 auto}
.footer h4{color:var(--ink);font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin:0 0 14px;font-weight:600}
.footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer a:hover{color:var(--ink)}
.footer__base{max-width:1440px;margin:50px auto 0;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px}
.footer__word{font-size:clamp(80px,22vw,360px);font-weight:700;letter-spacing:-.07em;line-height:.8;margin:60px auto 0;max-width:1440px;text-align:center;
  background:linear-gradient(180deg,rgba(184,227,245,.22),rgba(184,227,245,0) 85%);-webkit-background-clip:text;background-clip:text;color:transparent;user-select:none}
@media (max-width:860px){.footer__grid{grid-template-columns:1fr 1fr}}

/* ───────── article / guide pages ───────── */
.page-hero{padding:clamp(140px,18vw,220px) var(--pad) 40px;max-width:1100px;margin:0 auto}
.page-hero h1{font-size:clamp(38px,5.6vw,80px);line-height:1.05;letter-spacing:-.035em;margin:18px 0 22px;font-weight:640}
.crumbs{font-size:13px;color:var(--mute);display:flex;gap:8px;flex-wrap:wrap}
.crumbs a:hover{color:var(--ink)}
.article{max-width:760px;margin:0 auto;padding:0 var(--pad) 120px;font-size:18px;line-height:1.85;color:var(--ink-2)}
.article h2{color:var(--ink);font-size:clamp(26px,2.6vw,36px);letter-spacing:-.02em;line-height:1.2;margin:2.2em 0 .7em;font-weight:620}
.article h3{color:var(--ink);font-size:21px;margin:1.8em 0 .5em}
.article a{color:var(--ice);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article strong{color:var(--ink)}
.article table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;display:block;overflow-x:auto}
.article th,.article td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article th{color:var(--ink);font-weight:600;background:rgba(255,255,255,.03)}
.article blockquote{margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--ice);background:rgba(118,213,248,.06);border-radius:0 14px 14px 0;color:var(--ink)}
.article ul,.article ol{padding-left:1.3em}
.article li{margin:.35em 0}
.tldr{margin:0 0 2em;padding:22px 26px;border-radius:20px;background:linear-gradient(160deg,rgba(118,213,248,.1),rgba(255,255,255,.02));box-shadow:inset 0 0 0 1px rgba(118,213,248,.25);color:var(--ink)}
.tldr b{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--ice);margin-bottom:8px}
.meta-row{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--mute)}
.article-cta{margin:3em 0 0;padding:28px;border-radius:24px;display:flex;gap:20px;align-items:center;background:rgba(255,255,255,.03);box-shadow:inset 0 0 0 1px var(--line);flex-wrap:wrap}
.article-cta img{width:64px;height:64px;border-radius:15px}
.article-cta div{flex:1;min-width:200px}
.article-cta p{margin:0;font-size:15px}
.guide-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:18px;max-width:1320px;margin:0 auto;padding:0 var(--pad) 140px}
.guide-card{display:flex;flex-direction:column;gap:12px;padding:30px;border-radius:24px;background:rgba(255,255,255,.025);box-shadow:inset 0 0 0 1px var(--line);transition:transform .6s var(--ease),background .4s}
.guide-card:hover{transform:translateY(-6px);background:rgba(118,213,248,.06)}
.guide-card h2{margin:0;font-size:22px;line-height:1.3;letter-spacing:-.01em;color:var(--ink)}
.guide-card p{margin:0;color:var(--mute);font-size:15px}
.guide-card span{font-family:var(--mono);font-size:12px;color:var(--ice);letter-spacing:.14em}

/* ───────── reveal defaults (JS enhances) ───────── */
.js [data-reveal]{opacity:0;transform:translateY(40px)}
.reduced [data-reveal]{opacity:1!important;transform:none!important}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .grain{display:none}
}

/* fixes */
.nav__links a.btn{color:#04131d}
.nav__links a.btn:hover{background:linear-gradient(180deg,#fff,#cdeaf8)}
html[lang=en] .hero__title{font-size:clamp(52px,8.2vw,150px);max-width:66vw}
html[lang=en] .pillar__big{font-size:clamp(90px,11vw,190px)}
@media (max-width:980px){html[lang=en] .hero__title{font-size:12.5vw;max-width:none}}
.article a.btn{color:#04131d;text-decoration:none}

/* Keep the full screenshots in view at the existing mobile breakpoint. */
@media (max-width:860px){
  .hero{
    grid-template-columns:minmax(0,1fr);grid-template-rows:auto auto auto;align-content:center;
    align-items:start;gap:clamp(20px,3svh,30px);padding-block:clamp(80px,11svh,112px) 24px;
  }
  .hero__inner{grid-row:1;gap:clamp(18px,2.8svh,28px)}
  .hero__title{font-size:clamp(42px,13vw,76px);line-height:.96}
  html[lang=en] .hero__title{font-size:clamp(33px,10.3vw,68px)}
  .hero__meta{gap:16px}
  .hero__meta .lead{font-size:clamp(16px,3.9vw,19px);line-height:1.55}
  .hero__chips{gap:6px}
  .hero__chips .chip{padding:4px 9px;font-size:12px}
  .hero__ctas{gap:8px}
  .hero__ctas .btn{min-height:44px;padding:9px 14px;font-size:14px}
  .hero__phone{
    position:relative;inset:auto;grid-row:2;justify-self:center;
    width:min(50vw,28svh,238px);max-width:none;opacity:1;transform:none;
  }
  .hero__scroll{position:relative;inset:auto;grid-row:3;justify-self:center;transform:none;gap:5px}
  .hero__scroll i{height:22px}
  .hero__vignette{background:linear-gradient(180deg,rgba(4,6,10,.52) 0%,rgba(4,6,10,.45) 39%,transparent 75%,var(--bg))}

  .exam__pin{
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-areas:"label label" "title title" "count photo" "lead lead" "note note";
    align-content:center;align-items:center;gap:10px 16px;height:auto;min-height:100svh;
    padding-block:clamp(30px,6svh,56px) 24px;
  }
  .exam__copy{display:contents}
  .exam__copy .eyebrow{grid-area:label;margin:0}
  .exam__copy .h-m{grid-area:title;margin:0;font-size:clamp(26px,6.4vw,42px)}
  .exam__progress{grid-area:count;min-width:0}
  .exam__count{font-size:clamp(56px,22vw,116px)}
  .exam__feedback{margin:14px 0 0}
  .exam__ok{padding:6px 10px;font-size:13px}
  .exam .ticks{gap:5px}
  .exam .ticks i{width:clamp(9px,3.3vw,19px)}
  .exam__visual{grid-area:photo;position:relative;inset:auto;width:min(44vw,26svh,218px)}
  .exam .lead{grid-area:lead;margin:2px 0 0;font-size:16px;line-height:1.5}
  .exam__note{display:block;grid-area:note;margin:0;font-size:13px;line-height:1.5}

  .hscroll__head{padding-block:64px 22px;gap:16px}
  .hscroll__head .lead{margin:0}
  .hscroll__track{padding-block:12px 64px}
  .card .card__media{width:min(57%,28svh,210px);margin-block-start:22px}
  .degree{grid-template-columns:minmax(0,1fr);gap:24px}
  .degree .cert{width:min(100%,560px);justify-self:center}
  .level{padding:12px;gap:8px;grid-template-columns:auto minmax(0,1fr) minmax(0,1.4fr)}
  .level span{text-align:right}
}
@media (max-width:860px) and (max-height:640px){
  .hero__phone{width:min(50vw,25svh)}
  .exam__pin{gap:8px 12px;padding-block:24px 18px}
  .exam__visual{width:min(42vw,21svh)}
}