/* ---------- Home ---------- */
.hero{position:relative;background:var(--ember);color:var(--bone-2);overflow:hidden;padding:120px 0 0;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;background:var(--grain);opacity:.22;mix-blend-mode:multiply;z-index:-1}
.hero::after{content:"";position:absolute;width:780px;height:780px;right:-200px;top:-120px;border-radius:50%;background:radial-gradient(circle,var(--ember-glow),rgba(242,140,40,0) 65%);z-index:-1}
.hero-grid{display:grid;gap:28px;align-items:end}
.hero-copy{padding-bottom:8px;position:relative;z-index:2}
.hero h1{display:grid;gap:18px}
.hero h1 .tag{font-family:var(--display);font-weight:800;font-size:clamp(2.9rem,1.6rem + 7.2vw,6.6rem);line-height:.92;letter-spacing:-.045em}
.hero h1 .tag span{display:block}
.hero h1 .tag span:nth-child(2){color:var(--ink)}
.hero h1 .sub{font-family:var(--body);font-weight:500;font-size:clamp(1.05rem,.98rem + .45vw,1.3rem);line-height:1.45;letter-spacing:0;color:rgba(255,248,240,.92);max-width:34ch}
.codes{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 0;padding:0;list-style:none}
.codes li{font-family:var(--display);font-weight:700;font-size:.98rem;padding:7px 14px;border-radius:10px;border:2px solid var(--ink);background:var(--bone-2);color:var(--ink);box-shadow:3px 3px 0 var(--ink)}
.hero-ctas{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-visual{position:relative;min-height:440px;display:flex;justify-content:center;align-items:flex-end}
.hero-disc{position:absolute;bottom:-90px;left:50%;width:min(520px,112%);aspect-ratio:1;transform:translateX(-50%);border-radius:50%;background:radial-gradient(circle at 50% 30%,var(--ink-3),var(--ink) 70%);box-shadow:inset 0 0 0 14px rgba(255,255,255,.05)}
.hero-photo{position:relative;width:min(400px,86%);z-index:1;filter:drop-shadow(0 30px 40px rgba(26,20,16,.45))}
.sticker{position:absolute;z-index:3;width:clamp(104px,22vw,150px);aspect-ratio:1;border-radius:50%;background:var(--ember);border:4px solid var(--ink);box-shadow:5px 5px 0 var(--ink);top:6%;left:2%;display:grid;place-items:center;transform:rotate(-6deg);transition:transform .5s var(--ease)}
.sticker i{width:74%;height:82%;display:block}
.hero-card{position:absolute;z-index:4;border-radius:var(--r-md);padding:12px 14px;color:var(--bone-2);font-size:.85rem;line-height:1.35}
.hero-card b{display:block;font-family:var(--display);font-weight:700;font-size:.95rem;letter-spacing:-.01em}
.gc-admit{right:0;top:18%;max-width:210px}
.gc-admit .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(124,242,154,.25);margin-right:6px;vertical-align:1px}
.gc-score{left:0;bottom:22%;display:flex;align-items:center;gap:12px;max-width:290px}
.ring{--p:85;width:52px;height:52px;border-radius:50%;flex:none;display:grid;place-items:center;background:conic-gradient(var(--bone-2) calc(var(--p)*1%),rgba(255,255,255,.18) 0)}
.ring::before{content:"";grid-area:1/1;width:42px;height:42px;border-radius:50%;background:var(--ember-deep)}
.ring span{grid-area:1/1;position:relative;font-family:var(--display);font-weight:700;font-size:.8rem}
@media (max-width:899px){
  .hero-card{font-size:.76rem;padding:9px 11px}.hero-card b{font-size:.82rem}
  .gc-admit{top:8%;right:-4px;max-width:170px}
  .gc-score{bottom:14%;left:-4px}
  .ring{width:42px;height:42px}.ring::before{width:34px;height:34px}
}
@media (min-width:900px){
  .hero{padding-top:140px}
  .hero-grid{grid-template-columns:1.08fr .92fr;gap:24px}
  .hero-copy{padding-bottom:96px}
  .hero-visual{min-height:600px}
  .sticker{left:-8%;top:10%}
}
@media (prefers-reduced-motion:no-preference){
  .hero h1 .tag span{opacity:0;transform:translateY(40%) rotate(-2deg);animation:stamp .7s var(--ease) forwards}
  .hero h1 .tag span:nth-child(2){animation-delay:.12s}
  .hero h1 .tag span:nth-child(3){animation-delay:.24s}
  .hero .sub,.codes,.hero-ctas{opacity:0;animation:fade .6s var(--ease) .5s forwards}
  .hero-photo{opacity:0;transform:translateY(30px);animation:rise .9s var(--ease) .2s forwards}
  .sticker{opacity:0;animation:pop .6s cubic-bezier(.34,1.56,.64,1) .75s forwards}
  .hero-card{opacity:0;animation:fade .6s var(--ease) 1s forwards}
  .gc-score{animation-delay:1.15s}
}
@keyframes stamp{to{opacity:1;transform:none}}
@keyframes fade{to{opacity:1}}
@keyframes rise{to{opacity:1;transform:none}}
@keyframes pop{0%{opacity:0;transform:scale(.4) rotate(-20deg)}100%{opacity:1;transform:scale(1) rotate(-6deg)}}

/* affiliations */
.affil{background:var(--paper);padding-top:clamp(96px,11vw,148px)}
.affil .section-head{margin-bottom:28px}
.logo-wall{--u:1.12px;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;list-style:none;margin:0;padding:0}
.logo-wall li{position:relative;display:grid;grid-template-rows:84px auto;align-content:start;justify-items:center;gap:6px;padding:10px 12px 14px;border-radius:18px;background:#fff;border:1px solid rgba(26,20,16,.07);text-align:center;
  box-shadow:0 1px 0 rgba(26,20,16,.03),0 18px 30px -28px rgba(26,20,16,.45);transition:transform .45s var(--ease-o),box-shadow .45s var(--ease-o),border-color .3s}
.logo-wall li:hover{transform:translateY(-4px);border-color:rgba(217,68,15,.28);box-shadow:0 26px 40px -28px rgba(184,54,10,.55)}
.logo-wall .lg{display:grid;place-items:center;width:100%;height:100%}
.logo-wall img{width:calc(var(--w) * var(--u));height:calc(var(--h) * var(--u));max-width:100%;object-fit:contain}
.logo-wall .mono{display:grid;place-items:center;width:calc(56 * var(--u));height:calc(56 * var(--u));border-radius:16px;font-family:var(--display);font-weight:800;font-size:calc(19 * var(--u));letter-spacing:-.03em;line-height:1;
  color:var(--c);background:color-mix(in srgb,var(--c) 9%,#fff);box-shadow:inset 0 0 0 1.5px color-mix(in srgb,var(--c) 28%,transparent)}
.logo-wall .nm{font-size:.78rem;font-weight:600;line-height:1.3;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.logo-wall li.extra{display:none}
.logo-wall.all li.extra{display:grid;animation:wallIn .5s var(--ease-o) both}
@keyframes wallIn{from{opacity:0;transform:translateY(8px)}}
@media (max-width:699px){
  .logo-wall{--u:.78px;grid-template-columns:repeat(3,1fr);gap:8px}
  .logo-wall li{grid-template-rows:64px auto;padding:8px 6px 10px;border-radius:14px}
  .logo-wall .nm{font-size:.7rem}
}
.affil-foot{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:18px;color:var(--muted);font-size:.92rem}

/* about */
.about{background:var(--bone);position:relative;overflow:hidden;isolation:isolate}
.about::before{content:"";position:absolute;width:520px;height:520px;right:-120px;top:10%;border-radius:50%;background:radial-gradient(circle,rgba(217,68,15,.18),transparent 65%);z-index:-1}
.about-grid{display:grid;gap:44px;align-items:center}
.about-photo{position:relative;justify-self:center;width:min(420px,100%);overflow:hidden;border-radius:0 0 var(--r-xl) var(--r-xl);padding-top:8px}
.about-photo .arch{position:absolute;inset:22% 0 0;border-radius:220px 220px var(--r-xl) var(--r-xl);background:var(--ember);overflow:hidden}
.about-photo .arch::after{content:"";position:absolute;inset:0;background:var(--grain);opacity:.25;mix-blend-mode:multiply}
.about-photo img{position:relative;width:84%;margin:0 auto}
.about-photo .yt{position:absolute;right:14px;bottom:18px;display:flex;align-items:center;gap:10px;padding:10px 14px 10px 10px;border-radius:var(--r-tag);color:var(--bone-2);text-decoration:none;font-weight:600;font-size:.88rem}
.about-photo .yt svg{width:30px;height:30px}
.about-copy{display:grid;gap:18px}
.about-copy p{max-width:58ch}
.method{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:12px;counter-reset:m}
@media (max-width:699px){.course{min-height:100%}.bento .tile{min-height:320px}}
.method li{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;padding:18px;border-radius:var(--r-md);background:linear-gradient(145deg,rgba(255,255,255,.88),rgba(255,255,255,.55));border:1px solid rgba(255,255,255,.95);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:inset 0 1px 0 #fff,0 1px 2px rgba(26,20,16,.06),0 22px 40px -30px rgba(26,20,16,.4)}
.method li::before{counter-increment:m;content:counter(m);grid-row:span 2;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--ink);color:var(--bone-2);font-family:var(--display);font-weight:700}
.method li p{color:var(--muted);font-size:.96rem}
@media (min-width:900px){.about-grid{grid-template-columns:.9fr 1.1fr;gap:72px}}

/* courses */
.courses{background:var(--ink);color:var(--bone-2);position:relative;overflow:hidden;isolation:isolate}
.courses::before{content:"";position:absolute;width:620px;height:620px;left:-180px;top:-160px;border-radius:50%;background:radial-gradient(circle,rgba(217,68,15,.5),transparent 65%);z-index:-1}
.courses::after{content:"";position:absolute;width:560px;height:560px;right:-160px;bottom:-200px;border-radius:50%;background:radial-gradient(circle,rgba(46,42,126,.75),transparent 65%);z-index:-1}
.courses .lede{color:rgba(246,242,234,.7)}
.course-grid{display:grid;gap:14px}
.course{display:grid;gap:14px;align-content:start;padding:24px;border-radius:var(--r-lg)}
.course.glass{background:linear-gradient(150deg,rgba(255,255,255,.1),rgba(255,255,255,.03))}
.course .code{font-family:var(--display);font-weight:800;font-size:2.4rem;line-height:1;letter-spacing:-.04em;color:var(--marigold)}
.course .level{font-size:.86rem;color:rgba(246,242,234,.6)}
.course h3{font-size:1.06rem}
.course ul{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:.92rem;color:rgba(246,242,234,.82)}
.course ul li{display:flex;gap:10px;align-items:flex-start}
.course ul li::before{content:"";flex:none;width:7px;height:7px;margin-top:8px;border-radius:2px;background:var(--ember-soft);transform:rotate(45deg)}
@media (min-width:640px){.course-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1080px){.course-grid{grid-template-columns:repeat(4,1fr)}}

/* explore bento */
.explore{background:var(--paper)}
.bento{display:grid;gap:14px}
.tile{position:relative;display:flex;flex-direction:column;gap:12px;padding:24px;border-radius:var(--r-lg);text-decoration:none;overflow:hidden;isolation:isolate;min-height:230px;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
a.tile:hover{transform:translateY(-4px);box-shadow:0 26px 50px -30px rgba(26,20,16,.6)}
.tile h3{font-size:1.2rem}
.tile p{font-size:.95rem;opacity:.82;max-width:40ch}
.tile .go{margin-top:auto;font-weight:600;font-size:.92rem;display:inline-flex;gap:8px;align-items:center}
.tile .go svg{width:16px;height:16px;transition:transform .25s var(--ease)}
a.tile:hover .go svg{transform:translateX(4px)}
.t-ai{background:var(--ember);color:var(--bone-2)}
.t-ai::before{content:"";position:absolute;inset:0;background:var(--grain);opacity:.2;mix-blend-mode:multiply;z-index:-1}
.t-ai .peek{position:absolute;right:22px;top:20px;width:92px;height:110px;transform:rotate(8deg);z-index:1;filter:drop-shadow(0 10px 12px rgba(26,20,16,.3));transition:transform .6s var(--ease-o)}
a.t-ai:hover .peek{transform:rotate(-4deg) translateY(-3px)}
.t-portal{background:var(--indigo);color:var(--bone-2)}
.t-papers{background:var(--ink);color:var(--bone-2)}
.t-books{background:var(--bone);color:var(--ink)}
.t-word{background:#fff;color:var(--ink);border:1px solid var(--line)}
.t-yt{background:var(--ink-2);color:var(--bone-2)}
.essay{margin-top:4px;padding:16px;border-radius:var(--r-md);font-size:.88rem;line-height:1.7;color:#fff}
.essay mark{background:none;color:inherit;padding:0 1px;border-bottom:2px solid #FFD84D}
.essay mark.bad{border-bottom:0;text-decoration:underline wavy var(--ink);text-decoration-thickness:2px;text-underline-offset:4px}
.essay-foot{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.mini-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.mini-list li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);font-size:.88rem}
.mini-list li span:last-child{font-size:.78rem;opacity:.7}
.timer{font-family:var(--display);font-weight:700;font-size:clamp(2.2rem,6vw,3rem);letter-spacing:-.03em;color:var(--marigold);line-height:1}
.quit{font-size:.84rem;padding:10px 12px;border-radius:12px;border:1px dashed rgba(255,255,255,.3);color:rgba(246,242,234,.8)}
.quit q{color:#fff;font-weight:600}
.covers{display:flex;gap:10px;margin:2px 0}
.covers img{width:46%;max-width:150px;border-radius:6px;box-shadow:0 18px 30px -16px rgba(26,20,16,.6)}
.covers img:first-child{transform:rotate(-4deg)}
.covers img:last-child{transform:rotate(3deg) translateY(8px)}
.price{font-family:var(--display);font-weight:700;font-size:1.3rem}
.price small{font-family:var(--body);font-weight:500;font-size:.85rem;opacity:.7;margin-left:4px}
.word{font-family:var(--display);font-weight:700;font-size:1.7rem;letter-spacing:-.02em;color:var(--ember-deep)}
.word-meta{font-size:.85rem;color:var(--muted)}
.word-eg{font-size:.95rem;border-left:3px solid var(--ember);padding-left:12px;color:var(--ink-3)}
.yt-mark{width:56px;height:40px}
@media (max-width:699px){.t-ai .peek{width:56px;height:66px;right:16px;top:16px}}
@media (min-width:700px){.bento{grid-template-columns:repeat(2,1fr)}.t-ai{grid-column:span 2}}
@media (min-width:1080px){
  .bento{grid-template-columns:repeat(6,1fr);grid-auto-rows:minmax(240px,auto)}
  .t-ai{grid-column:1/4;grid-row:span 2}
  .t-portal,.t-papers{grid-column:4/7}
  .t-books{grid-column:1/3}.t-word{grid-column:3/5}.t-yt{grid-column:5/7}
}

/* register */
.register{background:var(--ember);color:var(--bone-2);position:relative;overflow:hidden;isolation:isolate}
.register::before{content:"";position:absolute;inset:0;background:var(--grain);opacity:.22;mix-blend-mode:multiply;z-index:-1}
.register::after{content:"";position:absolute;width:700px;height:700px;left:-260px;bottom:-320px;border-radius:50%;background:var(--ember-deep);z-index:-1}
.reg-grid{display:grid;gap:40px;align-items:start}
.reg-copy{display:grid;gap:18px;position:relative}
.reg-copy .lede{color:rgba(255,248,240,.88)}
.steps{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:10px;counter-reset:s}
.steps li{display:flex;gap:14px;align-items:flex-start;font-size:.97rem}
.steps li::before{counter-increment:s;content:counter(s);flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:var(--bone-2);font-weight:700;font-size:.85rem}
.form-shell{position:relative;padding-top:96px}
.reg-mascot{position:absolute;z-index:4;top:0;right:28px;width:96px;height:116px;transform:rotate(10deg);transform-origin:bottom center;filter:drop-shadow(0 10px 12px rgba(26,20,16,.35))}
.reg-form{z-index:3;padding:clamp(20px,3vw,32px);border-radius:var(--r-xl)}
.reg-form .field input,.reg-form .field select,.reg-form .field textarea{border-color:rgba(255,255,255,.4)}
.reg-form .btn{width:100%;margin-top:6px;min-height:54px;font-size:1rem}
.form-note{font-size:.82rem;opacity:.8;margin-top:10px;text-align:center}
.form-done{display:none;text-align:center;gap:12px;padding:30px 10px;justify-items:center}
.reg-form.sent .form-grid,.reg-form.sent .form-note{display:none}
.reg-form.sent .form-done{display:grid}
.form-done .mascot{width:110px;height:130px}
@media (min-width:960px){.reg-grid{grid-template-columns:.85fr 1.15fr;gap:64px}.form-shell{padding-top:116px}.reg-mascot{width:118px;height:140px;right:40px}}

/* ---------- 3D XA coin (courses section) ---------- */
.courses .wrap{position:relative}
.coin-stage{position:absolute;right:var(--gut);top:0;width:clamp(110px,16vw,190px);aspect-ratio:1;perspective:900px;pointer-events:none}
.coin{position:relative;width:100%;height:100%;transform-style:preserve-3d;animation:coinSpin 8s cubic-bezier(.65,0,.35,1) infinite}
.coin i{position:absolute;inset:0;border-radius:50%}
.coin .rim{background:linear-gradient(90deg,#7a2205,var(--ember-deep) 30%,var(--marigold) 50%,var(--ember-deep) 70%,#7a2205)}
.coin .face{display:grid;place-items:center;backface-visibility:hidden;-webkit-backface-visibility:hidden;box-shadow:inset 0 0 0 6px rgba(255,255,255,.35),inset 0 -14px 24px rgba(26,20,16,.18)}
.coin .front{background:radial-gradient(circle at 35% 30%,#fff,var(--bone) 70%);transform:translateZ(9px)}
.coin .front::after{content:"";width:62%;height:58%;background:url("../img/xa-mark.svg") center/contain no-repeat}
.coin .back{background:radial-gradient(circle at 35% 30%,var(--ember-soft),var(--ember-deep) 75%);transform:rotateY(180deg) translateZ(9px)}
.coin .back::after{content:"";width:64%;height:74%;background:url("../img/mascot.svg") center/contain no-repeat}
.coin .face::before{content:"";position:absolute;inset:0;border-radius:50%;background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.55) 45%,transparent 60%);background-size:250% 100%;animation:coinShine 5s ease-in-out infinite}
.coin-shadow{position:absolute;left:15%;right:15%;bottom:-18%;height:14%;border-radius:50%;background:radial-gradient(ellipse,rgba(0,0,0,.55),transparent 70%);animation:coinShadow 8s cubic-bezier(.65,0,.35,1) infinite}
@keyframes coinSpin{0%{transform:rotateX(8deg) rotateY(-22deg)}38%{transform:rotateX(8deg) rotateY(22deg)}50%{transform:rotateX(8deg) rotateY(158deg)}88%{transform:rotateX(8deg) rotateY(202deg)}100%{transform:rotateX(8deg) rotateY(338deg)}}
@keyframes coinShine{0%,100%{background-position:120% 0}50%{background-position:-20% 0}}
@keyframes coinShadow{0%,38%,50%,88%,100%{transform:scaleX(1)}44%,94%{transform:scaleX(.4)}}
@media (max-width:899px){.coin-stage{top:-14px;width:84px}.courses .section-head h2{padding-right:92px}}
@media (prefers-reduced-motion:reduce){.coin,.coin-shadow,.coin .face::before{animation:none}}

.slip-link{display:flex;align-items:center;gap:12px;margin-top:22px;padding:14px 16px 14px 14px;border-radius:18px;text-decoration:none;color:#fff;background:rgba(26,20,16,.26);border:1px solid rgba(255,255,255,.24);font-size:.92rem;line-height:1.4;max-width:520px;transition:background .3s,border-color .3s}
.slip-link:hover{background:rgba(26,20,16,.4);border-color:rgba(255,255,255,.45)}
.slip-link b{display:block;font-weight:700}
.slip-link .as-ic{width:40px;height:40px;flex:none;display:grid;place-items:center;border-radius:12px;background:var(--bone-2);color:var(--ember-deep)}
.slip-link .as-ic svg{width:19px;height:19px}
.slip-link .as-go{width:18px;height:18px;flex:none;margin-left:auto;transition:transform .35s var(--ease-o)}
.slip-link:hover .as-go{transform:translateX(3px)}

/* phones: explore cards sit two to a column, big cards span both, nothing stretches */
@media (max-width:699px){
  .bento.swipe-m{grid-template-rows:auto auto;grid-auto-columns:min(78vw,300px);align-items:stretch}
  .bento.swipe-m>.tile{min-height:0;padding:18px;gap:8px;border-radius:20px}
  .bento.swipe-m>.t-ai,.bento.swipe-m>.t-yt{grid-row:span 2!important}
  .bento .tile h3{font-size:1.02rem}
  .bento .tile p{font-size:.88rem}
  .bento .tile .go{font-size:.88rem;padding-top:4px}
  .t-ai .essay{padding:12px;font-size:.82rem;line-height:1.6}
  .t-ai .essay-foot{gap:6px;margin-top:8px}.t-ai .essay-foot .chip{font-size:.72rem;padding:4px 8px}
  .t-portal .mini-list{gap:6px}.t-portal .mini-list li{padding:8px 10px;font-size:.8rem}
  .t-papers .timer{font-size:1.9rem}
  .t-papers .quit{font-size:.76rem;padding:8px 10px}
  .t-books .covers{gap:8px}.t-books .covers img{width:38%;max-width:96px}
  .t-books .price{font-size:1.1rem}
  .t-word .word{font-size:1.4rem}.t-word .word-eg{font-size:.86rem}
  .bento.swipe-m>.t-yt{justify-content:flex-end;background:radial-gradient(120% 70% at 100% 0%,rgba(255,0,0,.28),transparent 60%),var(--ink-2)}
  .t-yt .yt-mark{width:84px;height:60px;margin-bottom:auto;filter:drop-shadow(0 14px 24px rgba(255,0,0,.35))}
  .t-yt h3{font-size:1.3rem!important}
}