/* ==========================================================================
   Home page
   ========================================================================== */

/* ---------------- NAV ---------------- */
.nav{position:fixed;left:0;right:0;top:0;z-index:100;padding:16px var(--gut);color:#fff;
  transition:transform .7s var(--ease-out)}
.nav.is-hidden{transform:translateY(-130%)}
.nav-in{max-width:calc(var(--max) - 2*var(--gut) + 40px);margin:0 auto;display:flex;align-items:center;gap:24px;
  padding:9px 9px 9px 16px;border-radius:999px;border:1px solid transparent;color:inherit;
  transition:background .5s,border-color .5s,box-shadow .5s,color .4s}
/* scrolled over a light section: frosted white glass */
.nav.is-scrolled .nav-in{color:var(--ink);background:rgba(255,255,255,.58);border-color:rgba(255,255,255,.75);
  -webkit-backdrop-filter:blur(22px) saturate(180%);backdrop-filter:blur(22px) saturate(180%);
  box-shadow:0 14px 40px -18px rgba(11,18,34,.28),inset 0 1px 0 rgba(255,255,255,.9)}
/* scrolled over a dark section: clear glass */
.nav.is-scrolled.on-dark .nav-in{color:#fff;background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.16);
  -webkit-backdrop-filter:blur(22px) saturate(160%) brightness(.72);backdrop-filter:blur(22px) saturate(160%) brightness(.72);
  box-shadow:0 14px 40px -18px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.14)}
.nav.menu-open .nav-in{color:#fff;background:transparent;border-color:transparent;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}
.nav-links{display:flex;gap:2px;margin:0 auto}
.nav-links a{position:relative;padding:10px 14px;font-size:14px;font-weight:500;color:inherit;opacity:.74;
  border-radius:999px;transition:opacity .3s}
.nav-links a::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:1px;background:var(--ember);
  transform:scaleX(0);transform-origin:right;transition:transform .5s var(--ease-out)}
.nav-cta{display:flex;align-items:center;gap:8px}
.nav.is-scrolled:not(.on-dark):not(.menu-open) .btn-ghost-d{color:var(--ink);border-color:rgba(11,18,34,.14);background:rgba(255,255,255,.55)}
.nav.is-scrolled:not(.on-dark):not(.menu-open) .btn-ghost-d::before{background:var(--ink)}
.menu-btn{display:none;width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.08);border:1px solid var(--line-d);
  position:relative;color:inherit;transition:background .4s,border-color .4s}
.nav.is-scrolled:not(.on-dark):not(.menu-open) .menu-btn{background:rgba(11,18,34,.06);border-color:rgba(11,18,34,.1)}
.menu-btn i{position:absolute;left:15px;right:15px;height:1.6px;background:currentColor;border-radius:2px;transition:transform .5s var(--ease-out),top .5s var(--ease-out)}
.menu-btn i:first-child{top:18px}.menu-btn i:last-child{top:26px}
.menu-open .menu-btn i:first-child{top:22px;transform:rotate(45deg)}
.menu-open .menu-btn i:last-child{top:22px;transform:rotate(-45deg)}
.menu{position:fixed;inset:0;z-index:-1;background:var(--mid);visibility:hidden;clip-path:inset(0 0 100% 0);
  display:flex;flex-direction:column;justify-content:flex-end;padding:120px var(--gut) 40px}
.menu-link{display:block;overflow:hidden;font-family:var(--f-display);font-weight:600;font-size:clamp(40px,11vw,64px);
  letter-spacing:-.04em;line-height:1.08;color:#fff}
.menu-link span{display:inline-block}
.menu-link em{font-family:var(--f-mono);font-style:normal;font-size:12px;color:var(--ember);vertical-align:top;margin-right:10px;letter-spacing:.1em}
.menu-foot{display:flex;gap:10px;margin-top:40px;flex-wrap:wrap}

/* ---------------- HERO ---------------- */
.hero{position:relative;z-index:2;min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding:clamp(104px,13vh,140px) 0 clamp(44px,7vh,72px);background:var(--mid);color:#fff;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2;overflow:hidden;pointer-events:none}
.glow{position:absolute;border-radius:50%;will-change:transform}
.glow-a{width:62vw;height:62vw;right:-18vw;top:-22vw;background:radial-gradient(circle,rgba(255,90,31,.55),rgba(255,90,31,0) 65%)}
.glow-b{width:50vw;height:50vw;left:-20vw;bottom:-28vw;background:radial-gradient(circle,rgba(61,107,255,.45),rgba(61,107,255,0) 65%)}
.hero .glow-a{right:auto;left:-16vw;top:-30vw;width:56vw;height:56vw;background:radial-gradient(circle,rgba(255,90,31,.26),rgba(255,90,31,0) 64%)}
.hero .glow-b{left:-22vw;bottom:-34vw;opacity:.75}
.gridlines{position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:72px 72px;background-position:center top;
  -webkit-mask-image:radial-gradient(ellipse 60% 60% at 60% 40%,#000 20%,transparent 75%);
          mask-image:radial-gradient(ellipse 60% 60% at 60% 40%,#000 20%,transparent 75%)}
.hero .gridlines{-webkit-mask-image:radial-gradient(ellipse 46% 60% at 22% 42%,#000 10%,transparent 72%);mask-image:radial-gradient(ellipse 46% 60% at 22% 42%,#000 10%,transparent 72%)}

/* the photo */
.hero-media{position:absolute;top:0;right:0;bottom:0;width:58%;z-index:-1;overflow:hidden}
.hero-pan{position:absolute;inset:0;will-change:transform}
.hero-float{position:absolute;inset:0;z-index:3;pointer-events:none}
.hero-img{position:absolute;inset:0;width:100%;height:100%;max-width:none;object-fit:cover;object-position:42% 30%;will-change:transform}
.hero-veil{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,var(--mid) 0%,rgba(7,11,20,.9) 9%,rgba(7,11,20,.42) 27%,rgba(7,11,20,0) 46%),
             linear-gradient(0deg,var(--mid) 0%,rgba(7,11,20,.62) 11%,rgba(7,11,20,0) 33%),
             linear-gradient(180deg,rgba(7,11,20,.55) 0%,rgba(7,11,20,0) 17%)}
.lamp{position:absolute;right:-12%;top:30%;width:34%;aspect-ratio:1;pointer-events:none}
.lamp b{position:absolute;inset:0;border-radius:50%;mix-blend-mode:screen;
  background:radial-gradient(circle,rgba(255,200,140,.42),rgba(255,140,60,.14) 38%,rgba(255,120,40,0) 68%)}
.lamp i{position:absolute;width:3px;height:3px;border-radius:50%;background:#FFE4C2;opacity:0;box-shadow:0 0 6px rgba(255,210,160,.9);
  animation:dust 11s linear infinite}
.lamp i:nth-of-type(1){left:22%;top:62%}.lamp i:nth-of-type(2){left:34%;top:44%;animation-delay:-3s;animation-duration:13s}
.lamp i:nth-of-type(3){left:16%;top:30%;animation-delay:-6s}.lamp i:nth-of-type(4){left:40%;top:70%;animation-delay:-8s;animation-duration:9s}
.lamp i:nth-of-type(5){left:28%;top:24%;animation-delay:-1.5s;animation-duration:14s}.lamp i:nth-of-type(6){left:12%;top:52%;animation-delay:-10s}
@keyframes dust{0%{transform:translate(0,0);opacity:0}15%{opacity:.85}50%{transform:translate(-18px,-36px);opacity:.5}85%{opacity:.8}100%{transform:translate(-6px,-80px);opacity:0}}

.hero-grid{position:relative}
.hero-copy{position:relative;z-index:2;max-width:min(46vw,680px)}
.hero-kicker{display:inline-flex;align-items:center;gap:12px;height:40px;padding:0 16px 0 12px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid var(--line-d2);font-size:13.5px;font-weight:500;color:rgba(255,255,255,.85);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.hero-kicker .live{position:relative;width:8px;height:8px;border-radius:50%;background:var(--ember)}
.hero-kicker .live::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:1px solid var(--ember);animation:ping 2s var(--ease-out) infinite}
@keyframes ping{0%{transform:scale(.4);opacity:1}100%{transform:scale(1.8);opacity:0}}
.hero-kicker b{font-weight:600;color:#fff}
.hero-kicker .sep{width:1px;height:14px;background:var(--line-d2)}
.hero h1{margin:24px 0 22px;font-family:var(--f-si-d);font-weight:800;font-size:clamp(48px,min(5.6vw,10.6vh),100px);line-height:1.12;
  letter-spacing:0;color:#fff;text-shadow:0 2px 30px rgba(7,11,20,.35)}
.hero h1 .w{display:inline-block;overflow:hidden;vertical-align:top;padding:.2em .02em .16em;margin:-.2em -.02em -.16em}
.hero h1 .wi{display:inline-block;will-change:transform}
.hero h1 .w-wrap{position:relative;display:inline-block;vertical-align:top}
.hero h1 .grad{position:relative;background:linear-gradient(90deg,#FF5A1F 0%,#FF8A3D 28%,#FFC23D 52%,#FF8A3D 76%,#FF5A1F 100%);
  background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 6s linear infinite}
@keyframes shine{to{background-position:-200% 0}}
.hero h1 .squig{position:absolute;left:-2%;width:104%;bottom:-.02em;height:.2em;overflow:visible;pointer-events:none}
.hero h1 .squig path{fill:none;stroke:var(--ember);stroke-width:5;stroke-linecap:round}
.hero-sub{max-width:34em;margin:0;font-family:var(--f-si);font-size:clamp(16px,1.25vw,19px);line-height:1.85;color:rgba(255,255,255,.7)}
.hero-sub b{color:#fff;font-weight:500}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:32px 0 clamp(30px,4.6vh,44px)}
.hero-stats{display:flex;gap:0;flex-wrap:wrap;border-top:1px solid var(--line-d);padding-top:22px}
.hero-stats > div{padding-right:26px;margin-right:26px;border-right:1px solid var(--line-d)}
.hero-stats > div:last-child{border:0;margin:0;padding:0}
.hero-stats b{display:block;font-family:var(--f-display);font-size:28px;font-weight:600;letter-spacing:-.04em;line-height:1.1}
.hero-stats > div > span{font-size:13px;color:rgba(255,255,255,.52)}

/* floating glass cards */
.gcard{position:absolute;z-index:3;display:flex;align-items:center;gap:12px;padding:11px 18px 11px 11px;border-radius:20px;color:#fff;white-space:nowrap;
  background:linear-gradient(145deg,rgba(255,255,255,.17),rgba(255,255,255,.05));border:1px solid rgba(255,255,255,.22);
  -webkit-backdrop-filter:blur(16px) saturate(160%);backdrop-filter:blur(16px) saturate(160%);
  box-shadow:0 26px 50px -20px rgba(0,0,0,.65),inset 0 1px 0 rgba(255,255,255,.28)}
.gcard b{display:block;font-size:14px;font-weight:600;letter-spacing:-.01em}
.gcard span{font-size:12px;color:rgba(255,255,255,.62)}
.gcard i{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;flex:none;background:linear-gradient(135deg,var(--blue),var(--cyan))}
.gcard i svg{width:18px;height:18px;color:#fff}
.live-dot{position:relative;width:38px;height:38px;border-radius:12px;flex:none;background:rgba(255,59,59,.16)}
.live-dot::before{content:"";position:absolute;left:50%;top:50%;width:10px;height:10px;margin:-5px 0 0 -5px;border-radius:50%;background:#FF3B3B;animation:ping2 2s infinite}
@keyframes ping2{0%{box-shadow:0 0 0 0 rgba(255,59,59,.6)}80%,100%{box-shadow:0 0 0 12px rgba(255,59,59,0)}}
.gc-1{left:53%;top:69%}
.gc-2{right:6.5%;bottom:15%}
.gcard{animation:float 7s ease-in-out infinite}.gc-2{animation-delay:-3s}
@keyframes float{0%,100%{translate:0 0}50%{translate:0 -10px}}

/* the flask that falls into the next section */
.flask-home{position:absolute;z-index:4;left:86.5%;top:41%;width:clamp(56px,4.6vw,90px);aspect-ratio:100/130;pointer-events:none}
.flask,.flask-in,.flask-bob{width:100%;height:100%}
.flask{will-change:transform}
.flask-bob{animation:bob 5.5s ease-in-out infinite}
.flask.falling .flask-bob{animation-play-state:paused}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-4deg)}50%{transform:translateY(-10px) rotate(3deg)}}
.flask svg,.flask-slot svg{display:block;width:100%;height:100%;overflow:visible}
.fk-wave{animation:wave 2.2s linear infinite}
@keyframes wave{to{transform:translateX(-40px)}}
.fk-bubbles circle{opacity:0;animation:fkb 2.8s ease-in infinite}
.fk-bubbles circle:nth-child(2){animation-delay:-.9s}.fk-bubbles circle:nth-child(3){animation-delay:-1.7s}.fk-bubbles circle:nth-child(4){animation-delay:-2.3s}
@keyframes fkb{0%{transform:translateY(0);opacity:0}20%{opacity:.85}100%{transform:translateY(-30px);opacity:0}}

.scroll-cue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;
  font-family:var(--f-mono);font-size:10px;letter-spacing:.3em;text-transform:uppercase;color:rgba(255,255,255,.45)}
.scroll-cue i{width:1px;height:40px;background:rgba(255,255,255,.15);position:relative;overflow:hidden}
.scroll-cue i::after{content:"";position:absolute;left:0;top:-50%;width:1px;height:50%;background:var(--ember);animation:drip 2s var(--ease-io) infinite}
@keyframes drip{to{top:110%}}
@media (max-height:860px){.scroll-cue{display:none}}
@media (max-height:760px) and (min-width:901px){.hero{padding-top:92px;padding-bottom:36px}.hero h1{margin:16px 0 14px}.hero-actions{margin:22px 0 24px}.hero-stats{padding-top:16px}}

/* first paint: hidden until the intro plays (a timer shows them anyway if scripts fail) */
html.intro .hero-img,html.intro .lamp,html.intro [data-hero],html.intro .gcard,html.intro .flask-in{opacity:0}

/* ---------------- SECTION SHELL ---------------- */
.sec{position:relative;padding:clamp(54px,min(7.2vw,9.5vh),112px) 0}
.sec-head{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:end;margin-bottom:clamp(30px,3.4vw,52px)}
.h2{margin:16px 0 0;font-family:var(--f-display);font-weight:600;font-size:clamp(38px,4.7vw,78px);line-height:.98;letter-spacing:-.05em}
.lede{margin:0;font-size:clamp(16px,1.3vw,19px);line-height:1.65;color:var(--ink-2);max-width:32em}
.on-dark{color:#fff}
.on-dark .lede{color:rgba(255,255,255,.62)}

/* ---------------- A-PLAN ---------------- */
.aplan{background:var(--ivory);padding-top:clamp(50px,min(6.4vw,8vh),100px)}
.aplan-head{max-width:1000px;margin:0 auto clamp(22px,min(3vw,4vh),46px);text-align:center}
.aplan-head .lede{margin:16px auto 0;max-width:36em}
.aplan-title{position:relative}
.flask-slot{position:relative;display:inline-block;width:.66em;height:.86em;margin-left:.14em;vertical-align:-.1em}
.flask-slot svg{visibility:hidden}
html.reduce .flask-slot svg,html.no-js .flask-slot svg,.flask-slot.show svg{visibility:visible}
.aplan-title .hl{color:inherit;transition:color .5s}
.aplan-title.landed .hl,html.reduce .aplan-title .hl,html.no-js .aplan-title .hl{color:var(--ember)}

.ptable{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.tile{--c:var(--ember);position:relative;display:flex;flex-direction:column;min-height:clamp(220px,min(15.5vw,30vh),284px);padding:18px 20px 20px;
  background:var(--paper);border:1px solid var(--line-l);border-radius:26px;overflow:hidden;isolation:isolate;
  transition:transform .6s var(--ease-out),box-shadow .6s var(--ease-out),border-color .6s}
.tile::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(500px circle at var(--mx,50%) var(--my,0%),color-mix(in srgb,var(--c) 13%,transparent),transparent 42%);opacity:0;transition:opacity .5s}
.tile-meta{display:flex;justify-content:space-between;align-items:center;font-family:var(--f-mono);font-size:11.5px;color:var(--ink-3);letter-spacing:.06em}
.tile-cat{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-family:var(--f-body);font-size:11.5px;font-weight:700;letter-spacing:.01em;
  color:var(--c);background:color-mix(in srgb,var(--c) 12%,transparent)}
.tile-cat::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.tile h3{margin:12px 0 0;font-family:var(--f-display);font-weight:650;font-size:clamp(25px,1.85vw,32px);line-height:1.02;letter-spacing:-.04em}
.tile .art{flex:1;display:grid;place-items:center;min-height:clamp(66px,10vh,100px);margin:6px 0 10px}
.tile .art svg{width:100%;max-width:200px;height:auto;max-height:clamp(76px,11.6vh,112px);overflow:visible}
.tile p{margin:0;font-size:14px;line-height:1.5;color:var(--ink-2)}
.t-learn{--c:#FF5A1F}.t-prac{--c:#3D6BFF}.t-rev{--c:#0FB5D6}.t-exam{--c:#9B5CFF}
.tile.feature{background:var(--mid);color:#fff;border-color:transparent}
.tile.feature::after{content:"";position:absolute;z-index:-1;width:260px;height:260px;right:-110px;top:-120px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--c) 45%,transparent),transparent 65%)}
.tile.feature p{color:rgba(255,255,255,.62)}
.tile.feature .tile-meta{color:rgba(255,255,255,.45)}
.tile.feature .tile-cat{color:#fff;background:color-mix(in srgb,var(--c) 40%,transparent)}

/* tile art — shared pieces */
.art .cf{fill:var(--c)}
.art .cf-s{fill:none;stroke:var(--c)}
.art .sh{fill:rgba(11,18,34,.07)}
.art .ink{fill:var(--ink)}
.art .ink2{fill:rgba(11,18,34,.18)}
.art .ln path,.art .ln{fill:none;stroke:rgba(11,18,34,.16);stroke-width:2.4;stroke-linecap:round}
.art .card{fill:#fff;stroke:rgba(11,18,34,.1);stroke-width:1.5}
.art .mono-t{font-family:var(--f-mono);font-size:10px;fill:var(--ink-3);letter-spacing:.06em}
.art .tick,.art .lf rect,.art .pulse,.art .stamp,.art .bub circle,.art .steam path,.art .spark path{transform-box:fill-box;transform-origin:center}
.art .flip,.art .fillbar,.art .prog{transform-box:fill-box;transform-origin:left center}
/* 01 book */
.a-book .pg{fill:#fff;stroke:color-mix(in srgb,var(--c) 40%,#fff);stroke-width:1.6}
.a-book .flip{animation:flip 4.4s var(--ease-io) infinite}
@keyframes flip{0%,22%{transform:scaleX(1);opacity:1}52%,84%{transform:scaleX(-1);opacity:1}92%,100%{transform:scaleX(-1);opacity:0}}
/* 02 quiz */
.a-quiz .opt{fill:rgba(11,18,34,.06)}
.a-quiz .fillbar{animation:optfill 3.6s var(--ease-out) infinite}
@keyframes optfill{0%,22%{transform:scaleX(0)}40%,86%{transform:scaleX(1)}96%,100%{transform:scaleX(0)}}
.a-quiz .tick{animation:tick 3.6s var(--ease-out) infinite}
@keyframes tick{0%,36%{transform:scale(0)}46%{transform:scale(1.25)}52%,86%{transform:scale(1)}96%,100%{transform:scale(0)}}
.a-quiz .streak .mono-t{fill:#fff;font-weight:600}
/* 03 mind map */
.a-map .br path{fill:none;stroke:var(--c);stroke-width:2.6;stroke-linecap:round;stroke-dasharray:70;stroke-dashoffset:0;animation:draw 4s var(--ease-out) infinite}
.a-map .br path:nth-child(2){animation-delay:.15s}.a-map .br path:nth-child(3){animation-delay:.3s}.a-map .br path:nth-child(4){animation-delay:.45s}
@keyframes draw{0%{stroke-dashoffset:70}30%,85%{stroke-dashoffset:0}100%{stroke-dashoffset:-70}}
.a-map .lf rect{fill:color-mix(in srgb,var(--c) 16%,#fff);stroke:color-mix(in srgb,var(--c) 45%,#fff);stroke-width:1.5;animation:pop 4s var(--ease-out) infinite}
.a-map .lf rect:nth-child(2){animation-delay:.15s}.a-map .lf rect:nth-child(3){animation-delay:.3s}.a-map .lf rect:nth-child(4){animation-delay:.45s}
@keyframes pop{0%,18%{transform:scale(0)}34%{transform:scale(1.12)}40%,86%{transform:scale(1)}98%,100%{transform:scale(0)}}
/* 04 recordings (dark) */
.a-rec .scr{fill:rgba(255,255,255,.06);stroke:rgba(255,255,255,.16);stroke-width:1.5}
.a-rec .pulse{opacity:.35;animation:pulse 2.4s ease-out infinite}
@keyframes pulse{0%{transform:scale(.8);opacity:.5}100%{transform:scale(1.7);opacity:0}}
.a-rec .trk{fill:rgba(255,255,255,.14)}
.a-rec .prog{animation:prog 7s linear infinite}
@keyframes prog{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.a-rec .rec{fill:#FF3B3B;animation:blinkr 1.4s steps(2,jump-none) infinite}
@keyframes blinkr{50%{opacity:.2}}
.a-rec .mono-t{fill:rgba(255,255,255,.6)}
/* 05 papers */
.a-paper .p1{fill:#fff;stroke:rgba(11,18,34,.12);stroke-width:1.5}
.a-paper .p2{fill:color-mix(in srgb,var(--c) 10%,#fff);stroke:rgba(11,18,34,.08)}
.a-paper .p3{fill:color-mix(in srgb,var(--c) 20%,#fff)}
.a-paper .ring1{fill:rgba(255,255,255,.85);stroke:#E0321F;stroke-width:2.6}
.a-paper .ring2{fill:none;stroke:#E0321F;stroke-width:1.2}
.a-paper .a-t{font-family:var(--f-serif);font-style:italic;font-size:24px;fill:#E0321F}
.a-paper .stamp{animation:stamp 4.2s var(--ease-out) infinite}
@keyframes stamp{0%,24%{transform:scale(1.9) rotate(-28deg);opacity:0}34%{transform:scale(.9) rotate(-12deg);opacity:1}40%,86%{transform:scale(1) rotate(-12deg);opacity:1}96%,100%{transform:scale(1) rotate(-12deg);opacity:0}}
.a-paper .yr{fill:var(--c);font-weight:600}
/* 06 practicals */
.a-lab .glass{fill:rgba(255,255,255,.55);stroke:rgba(11,18,34,.32);stroke-width:2.4;stroke-linejoin:round;stroke-linecap:round}
.a-lab .liq{opacity:.85}
.a-lab .liq2{fill:#3D6BFF;opacity:.75}
.a-lab .tickm{stroke:rgba(11,18,34,.3);stroke-width:2;stroke-linecap:round}
.a-lab .bub circle{fill:#fff;opacity:0;animation:bub 2.6s ease-in infinite}
.a-lab .bub circle:nth-child(2){animation-delay:-.6s}.a-lab .bub circle:nth-child(3){animation-delay:-1.2s}.a-lab .bub circle:nth-child(4){animation-delay:-1.7s}.a-lab .bub circle:nth-child(5){animation-delay:-2.2s}
@keyframes bub{0%{transform:translateY(0);opacity:0}20%{opacity:.9}100%{transform:translateY(-34px);opacity:0}}
.a-lab .steam path{fill:none;stroke:color-mix(in srgb,var(--c) 50%,#fff);stroke-width:2.2;stroke-linecap:round;opacity:0;animation:steam 3.2s ease-out infinite}
.a-lab .steam path:nth-child(2){animation-delay:-1.4s}
@keyframes steam{0%{transform:translateY(6px);opacity:0}40%{opacity:.8}100%{transform:translateY(-8px);opacity:0}}
/* 07 gauge (dark) */
.a-gauge .trk{fill:none;stroke:rgba(255,255,255,.12);stroke-width:10}
.a-gauge .arc{stroke-width:10;stroke-linecap:round;stroke-dasharray:251.3;stroke-dashoffset:25;animation:gauge 4.6s var(--ease-out) infinite;transform-box:view-box;transform-origin:100px 55px;transform:rotate(-90deg)}
@keyframes gauge{0%,10%{stroke-dashoffset:251.3}55%,88%{stroke-dashoffset:25}100%{stroke-dashoffset:251.3}}
.a-gauge .big-t{font-family:var(--f-display);font-weight:700;font-size:26px;fill:#fff;letter-spacing:-1px}
.a-gauge .lbl-t{fill:rgba(255,255,255,.5);font-size:8.5px}
.a-gauge .spark path{fill:var(--amber);animation:twinkle 2.4s ease-in-out infinite}
.a-gauge .spark path:nth-child(2){animation-delay:-1.2s}
@keyframes twinkle{0%,100%{transform:scale(.4);opacity:.3}50%{transform:scale(1);opacity:1}}
/* 08 paper class */
.a-clock .write{fill:none;stroke:var(--c);stroke-width:2.6;stroke-linecap:round;stroke-dasharray:60;stroke-dashoffset:0;animation:write 4s linear infinite}
.a-clock .write.w2{stroke-dasharray:36;animation-name:write2}
@keyframes write{0%{stroke-dashoffset:60}45%,90%{stroke-dashoffset:0}100%{stroke-dashoffset:60;opacity:0}}
@keyframes write2{0%,45%{stroke-dashoffset:36}72%,90%{stroke-dashoffset:0}100%{stroke-dashoffset:36;opacity:0}}
.a-clock .pen{transform:translate(74px,76px);animation:pen 4s linear infinite;transform-box:view-box;transform-origin:0 0}
@keyframes pen{0%{transform:translate(42px,56px)}45%{transform:translate(90px,56px)}46%{transform:translate(42px,76px)}72%{transform:translate(74px,76px)}90%{transform:translate(74px,76px)}100%{transform:translate(42px,56px)}}
.a-clock .face{fill:#fff;stroke:var(--c);stroke-width:4}
.a-clock .ticks path{stroke:rgba(11,18,34,.3);stroke-width:2.4;stroke-linecap:round}
.a-clock .hand{stroke:var(--ink);stroke-width:3;stroke-linecap:round;transform-box:view-box;transform-origin:150px 58px;animation:spin 4s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
/* art only moves while the section is on screen */
.ptable .art *{animation-play-state:paused}
.ptable.is-live .art *{animation-play-state:running}

/* ---------------- LEARN YOUR WAY (three cards) ---------------- */
.ways{background:var(--ivory)}
.ways .sec-head{margin-bottom:clamp(24px,min(3vw,4.4vh),46px)}
.ways-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.way{position:relative;display:flex;flex-direction:column;border-radius:var(--r-lg);overflow:hidden;color:#fff;isolation:isolate;
  transition:transform .7s var(--ease-out),box-shadow .7s var(--ease-out)}
.way-art{position:relative;height:clamp(165px,min(15vw,24vh),262px);padding:20px 22px 0}
.way-art svg{width:100%;height:100%;transition:transform .9s var(--ease-out)}
.way-copy{position:relative;z-index:2;flex:1;display:flex;flex-direction:column;padding:14px clamp(20px,1.9vw,30px) clamp(22px,1.9vw,30px)}
.way-copy .num{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.14em;opacity:.7}
.way-copy h3{margin:10px 0 10px;font-family:var(--f-display);font-weight:600;font-size:clamp(27px,2.35vw,40px);line-height:1;letter-spacing:-.045em}
.way-copy p{margin:0 0 18px;font-size:clamp(14px,1.02vw,15.5px);line-height:1.58;opacity:.82}
.way-copy .tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}
.way-copy .tags span{height:30px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.18)}
.w1{background:radial-gradient(120% 120% at 100% 0%,#FF8A3D 0%,#FF5A1F 38%,#C9340A 100%)}
.w2{background:radial-gradient(120% 120% at 100% 0%,#6B8CFF 0%,#3D6BFF 40%,#1C3AB8 100%)}
.w3{background:radial-gradient(120% 120% at 100% 0%,#26324F 0%,#121A30 45%,#070B14 100%)}

/* ---------------- AI STUDY HELPER ---------------- */
.ai{position:relative;color:#fff;padding:clamp(56px,min(7.4vw,9.5vh),118px) 0;isolation:isolate;background:var(--ivory)}
.ai-bg{position:absolute;inset:0;z-index:-1;background:var(--mid);overflow:hidden}
.ai-bg .glow-a{right:-10vw;top:-10vw;width:50vw;height:50vw;background:radial-gradient(circle,rgba(61,107,255,.5),transparent 65%)}
.ai-bg .glow-b{left:-10vw;bottom:-20vw;width:50vw;height:50vw;background:radial-gradient(circle,rgba(255,90,31,.35),transparent 65%)}
.ai-bg .gridlines{-webkit-mask-image:radial-gradient(ellipse 60% 60% at 50% 50%,#000 10%,transparent 70%);mask-image:radial-gradient(ellipse 60% 60% at 50% 50%,#000 10%,transparent 70%)}
.ai-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(40px,6vw,100px);align-items:center}
.feat{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:32px}
.feat div{padding:18px;border-radius:18px;background:rgba(255,255,255,.04);border:1px solid var(--line-d);transition:background .4s,border-color .4s}
.feat svg{width:22px;height:22px;color:var(--cyan);margin-bottom:12px}
.feat b{display:block;font-size:15px;font-weight:600;margin-bottom:4px}
.feat span{font-size:13.5px;line-height:1.5;color:rgba(255,255,255,.55)}

.phone-wrap{position:relative;display:grid;place-items:center}
.phone{position:relative;width:min(306px,80vw,36vh);aspect-ratio:9/18.6;border-radius:48px;padding:11px;
  background:linear-gradient(145deg,#2A3350,#0B1020);box-shadow:0 60px 120px -30px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.1) inset,0 0 80px -20px rgba(61,107,255,.5)}
.phone::before{content:"";position:absolute;top:24px;left:50%;transform:translateX(-50%);width:100px;height:28px;border-radius:20px;background:#000;z-index:3}
.screen{position:relative;width:100%;height:100%;border-radius:38px;overflow:hidden;background:#F5F7FB;color:var(--ink);display:flex;flex-direction:column}
.scr-top{padding:54px 18px 12px;background:#fff;border-bottom:1px solid var(--line-l)}
.scr-top .t{font-weight:700;font-size:15px;letter-spacing:-.01em}
.scr-top .m{font-size:11.5px;color:var(--ink-3)}
.scr-seg{display:flex;gap:4px;margin-top:12px;padding:4px;background:#EEF1F6;border-radius:12px}
.scr-seg span{flex:1;text-align:center;font-size:11.5px;font-weight:600;padding:7px 0;border-radius:9px;color:var(--ink-3)}
.scr-seg .on{background:#fff;color:var(--ink);box-shadow:0 2px 8px rgba(11,18,34,.08)}
.chat{flex:1;padding:16px;display:flex;flex-direction:column;gap:10px;overflow:hidden}
.bub{max-width:86%;padding:11px 14px;border-radius:18px;font-size:13px;line-height:1.55;opacity:0;transform:translateY(12px)}
.bub.me{align-self:flex-end;background:var(--ink);color:#fff;border-bottom-right-radius:6px}
.bub.ai-b{align-self:flex-start;background:#fff;border:1px solid var(--line-l);border-bottom-left-radius:6px;box-shadow:0 6px 20px -10px rgba(11,18,34,.2)}
.bub .eq{display:block;margin:8px 0;padding:8px 10px;border-radius:10px;background:#EEF4FF;color:#1F46D8;font-weight:600;font-size:12.5px}
.bub .ts{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:5px 10px;border-radius:999px;background:#FFF1EA;color:var(--ember);font-size:11.5px;font-weight:600}
.bub .ts svg{width:10px;height:10px}
.typing{display:inline-flex;gap:4px;padding:4px 0}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--ink-3);animation:blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}
.compose{margin:10px 12px 18px;padding:10px 10px 10px 16px;border-radius:18px;background:#fff;border:1px solid var(--line-l);
  display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}
.compose i{width:32px;height:32px;border-radius:11px;background:var(--ember);display:grid;place-items:center}
.fcard{position:absolute;display:flex;align-items:center;gap:12px;padding:12px 16px 12px 12px;border-radius:18px;color:#fff;font-size:13px;
  background:rgba(20,28,50,.6);border:1px solid rgba(255,255,255,.14);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:0 30px 60px -20px rgba(0,0,0,.6);white-space:nowrap}
.fcard i{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;flex:none}
.fcard i svg{width:18px;height:18px}
.fcard b{display:block;font-weight:600;font-size:13.5px}
.fcard span{color:rgba(255,255,255,.55);font-size:12px}
.fc-1{left:-10%;top:20%}.fc-2{right:-8%;top:46%}.fc-3{left:-6%;bottom:14%}

/* ---------------- TIMETABLE ---------------- */
.tt{background:var(--ivory)}
.grades{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-bottom:14px}
.grade{position:relative;height:96px;border-radius:20px;border:1px solid var(--line-l2);background:transparent;text-align:left;padding:14px 16px;
  display:flex;flex-direction:column;justify-content:space-between;transition:background .5s var(--ease-out),color .5s,border-color .5s,transform .5s var(--ease-out)}
.grade small{font-family:var(--f-mono);font-size:11px;color:var(--ink-3);letter-spacing:.1em;transition:color .5s}
.grade b{font-family:var(--f-display);font-weight:700;font-size:44px;letter-spacing:-.05em;line-height:.9}
.grade[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.grade[aria-pressed="true"] small{color:var(--ember)}
.tt-card{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,2fr);border-radius:var(--r-lg);overflow:hidden;background:var(--paper);border:1px solid var(--line-l)}
.tt-side{position:relative;padding:34px;background:var(--mid);color:#fff;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;min-height:270px}
.tt-side .big{font-family:var(--f-display);font-weight:700;font-size:clamp(110px,11vw,170px);letter-spacing:-.07em;line-height:.8}
.tt-side .fee small{display:block;font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.5);text-transform:uppercase}
.tt-side .fee b{font-family:var(--f-display);font-size:32px;font-weight:600;letter-spacing:-.03em;white-space:nowrap}
.tt-side::after{content:"";position:absolute;width:340px;height:340px;right:-160px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.55),transparent 65%)}
.tt-rows{padding:10px 34px}
.tt-row{display:grid;grid-template-columns:200px 1fr auto;gap:20px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line-l)}
.tt-row:last-child{border:0}
.tt-row .mode{display:flex;align-items:center;gap:12px;font-weight:600}
.tt-row .mode i{width:42px;height:42px;border-radius:13px;display:grid;place-items:center}
.tt-row .mode svg{width:20px;height:20px}
.tt-row .day{font-family:var(--f-display);font-size:26px;font-weight:600;letter-spacing:-.03em}
.tt-row .time{font-family:var(--f-mono);font-size:15px;color:var(--ink-2)}
.i-o{background:#FFEDE4;color:var(--ember)}.i-b{background:#E8EEFF;color:var(--blue)}.i-k{background:#EEF0F4;color:var(--ink)}

/* ---------------- JOIN ---------------- */
.join{background:var(--ivory-2)}
.join-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(30px,5vw,80px);align-items:center}
.join-main .h2{font-size:clamp(36px,3.9vw,72px)}
.join-main .lede{margin:20px 0 clamp(18px,2.2vw,32px);max-width:34em}
.steps{position:relative;padding-left:0}
.steps-line{position:absolute;left:31px;top:40px;bottom:40px;width:2px;background:var(--line-l2)}
.steps-line i{position:absolute;inset:0;background:linear-gradient(var(--ember),var(--amber));transform-origin:top;transform:scaleY(0)}
.step{position:relative;display:grid;grid-template-columns:64px 1fr;gap:24px;padding:14px 0}
.step .n{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:var(--paper);border:1px solid var(--line-l2);
  font-family:var(--f-mono);font-size:14px;position:relative;z-index:1;transition:background .5s,color .5s,border-color .5s}
.step.on .n{background:var(--ember);border-color:var(--ember);color:#fff;box-shadow:0 12px 30px -10px rgba(255,90,31,.7)}
.step h3{margin:6px 0 6px;font-family:var(--f-display);font-weight:600;font-size:clamp(24px,2.2vw,34px);letter-spacing:-.035em}
.step p{margin:0;color:var(--ink-2);max-width:30em}
.fees{position:relative;padding:34px 34px 32px;border-radius:var(--r-lg);background:var(--mid);color:#fff;overflow:hidden}
.fees::before{content:"";position:absolute;width:420px;height:420px;left:-200px;bottom:-240px;border-radius:50%;background:radial-gradient(circle,rgba(61,107,255,.45),transparent 65%)}
.fees h3{position:relative;margin:0 0 6px;font-family:var(--f-display);font-weight:600;font-size:30px;letter-spacing:-.03em}
.fees > p{position:relative;margin:0 0 20px;color:rgba(255,255,255,.55);font-size:14px}
.fee{position:relative;display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:15px 0;border-bottom:1px dashed rgba(255,255,255,.14)}
.fee:last-of-type{border-bottom:0}
.fee span{color:rgba(255,255,255,.78);font-size:15px;line-height:1.35}
.fee b{font-family:var(--f-display);font-weight:600;font-size:22px;letter-spacing:-.02em;white-space:nowrap}
.fee b small{font-size:12px;color:rgba(255,255,255,.45);font-weight:500;margin-right:4px}
.fees .btn{position:relative;width:100%;margin-top:22px}

/* ---------------- TUTES (3D ring) ---------------- */
.tutes{background:var(--mid);color:#fff;overflow:hidden}
.tutes .glow-a{right:auto;left:50%;top:40%;transform:translate(-50%,-50%);width:70vw;height:40vw;background:radial-gradient(ellipse,rgba(255,90,31,.35),transparent 65%)}
.ring-stage{position:relative;height:clamp(380px,40vw,540px);perspective:1700px;perspective-origin:50% 30%;margin-top:10px}
.ring{position:absolute;left:50%;top:50%;width:0;height:0;transform-style:preserve-3d;will-change:transform}
.book{position:absolute;left:calc(var(--bw) / -2);top:calc(var(--bh) / -2);width:var(--bw);height:var(--bh);transform-style:preserve-3d}
.ring-stage{--bw:clamp(150px,13vw,204px);--bh:calc(var(--bw) * 1.38);--bd:26px}
/* one flat layer per cover (no see-through children), so the 3D ring never hides part of a cover */
.book .face{position:absolute;inset:0;border-radius:4px 12px 12px 4px;overflow:hidden;backface-visibility:hidden;isolation:isolate;
  padding:18px 16px;display:flex;flex-direction:column;justify-content:space-between;color:#fff;
  box-shadow:inset 6px 0 10px -6px rgba(0,0,0,.45),inset -1px 0 0 rgba(255,255,255,.2)}
.book .spine{position:absolute;top:0;left:calc(var(--bd) / -2);width:var(--bd);height:100%;transform:rotateY(-90deg) translateZ(calc(var(--bd) / 2));
  filter:brightness(.7)}
.book .back{position:absolute;inset:0;transform:rotateY(180deg) translateZ(var(--bd));border-radius:12px 4px 4px 12px;filter:brightness(.55)}
.cov-top{display:flex;justify-content:space-between;font-family:var(--f-mono);font-size:10px;letter-spacing:.12em;color:color-mix(in srgb,currentColor 82%,transparent)}
.cov-mid .u{font-family:var(--f-display);font-weight:700;font-size:clamp(46px,4vw,64px);letter-spacing:-.06em;line-height:.85}
.cov-mid .t{margin-top:8px;font-family:var(--f-display);font-weight:600;font-size:clamp(15px,1.3vw,19px);letter-spacing:-.02em;line-height:1.05}
.cov-bot{font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;line-height:1.35;color:color-mix(in srgb,currentColor 78%,transparent)}
.cov-art{position:absolute;z-index:-1;right:-18%;top:22%;width:78%}

/* ---------------- FREE LESSONS ---------------- */
.free{background:var(--ivory);display:flex;align-items:center;min-height:min(90svh,880px)}
.free > .wrap{width:100%}
.free-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(30px,4vw,64px);align-items:center}
.free .lede{font-size:clamp(17px,1.45vw,21px)}
.big-count{font-family:var(--f-display);font-weight:700;font-size:clamp(120px,min(16.5vw,29vh),280px);letter-spacing:-.07em;line-height:.8;
  background:linear-gradient(180deg,var(--ink) 40%,#9097AA);-webkit-background-clip:text;background-clip:text;color:transparent}
.big-count sup{font-size:.4em;color:var(--ember);-webkit-text-fill-color:var(--ember);vertical-align:.9em}
.socials{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
.social{display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 20px 0 9px;border-radius:999px;border:1px solid var(--line-l2);
  font-size:14px;font-weight:600;transition:background .4s,color .4s,border-color .4s}
.social i{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#fff}
.social i svg{width:16px;height:16px}
.video{position:relative;display:block;border-radius:var(--r-lg);overflow:hidden;background:var(--mid);color:#fff;aspect-ratio:16/11.6;isolation:isolate}
.video-art{position:absolute;inset:0;z-index:-1}
.video .play{position:absolute;left:69%;top:47%;width:96px;height:96px;margin:-48px 0 0 -48px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:transform .6s var(--ease-out),background .4s}
.video .play::before{content:"";position:absolute;inset:-14px;border-radius:50%;border:1px solid rgba(255,255,255,.2);animation:ping 2.4s var(--ease-out) infinite}
.video .play svg{width:30px;height:30px;margin-left:4px}
.video-meta{position:absolute;left:0;right:0;bottom:0;padding:24px 28px;display:flex;justify-content:space-between;align-items:flex-end;gap:16px;
  background:linear-gradient(transparent,rgba(7,11,20,.85))}
.video-meta b{display:block;font-family:var(--f-display);font-weight:600;font-size:clamp(20px,2vw,28px);letter-spacing:-.03em}
.video-meta span{font-size:13px;color:rgba(255,255,255,.6)}
.yt-badge{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border-radius:999px;background:#FF0033;font-size:12px;font-weight:700;flex:none}

/* ---------------- CTA ---------------- */
.cta{position:relative;background:var(--mid);color:#fff;overflow:hidden;padding:clamp(64px,min(8.6vw,11vh),136px) 0 clamp(48px,6vw,90px);isolation:isolate}
.cta .glow-a{right:auto;left:50%;top:-10%;transform:translateX(-50%);width:80vw;height:60vw;background:radial-gradient(ellipse,rgba(255,90,31,.45),transparent 62%)}
.cta-title{text-align:center;margin:0;font-family:var(--f-display);font-weight:600;font-size:clamp(56px,9.4vw,168px);line-height:.88;letter-spacing:-.065em}
.cta-title .hl{color:var(--ember)}
.cta-sub{text-align:center;max-width:34em;margin:30px auto 0;color:rgba(255,255,255,.6);font-size:clamp(16px,1.3vw,19px)}
.cta-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin:40px 0 0}
.contact{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:clamp(46px,5.6vw,84px)}
.contact a,.contact div.c{display:block;padding:26px;border-radius:24px;background:rgba(255,255,255,.04);border:1px solid var(--line-d);transition:background .4s,border-color .4s,transform .6s var(--ease-out)}
.contact small{display:block;font-family:var(--f-mono);font-size:11px;letter-spacing:.14em;color:var(--ember);text-transform:uppercase;margin-bottom:14px}
.contact b{display:block;font-family:var(--f-display);font-weight:600;font-size:22px;letter-spacing:-.025em;margin-bottom:4px}
.contact span{color:rgba(255,255,255,.55);font-size:14px}

/* ---------------- FOOTER ---------------- */
.foot{background:var(--mid);color:#fff;padding:0 0 30px;overflow:hidden}
.foot-word{font-family:var(--f-display);font-weight:800;font-size:clamp(48px,12.2vw,220px);letter-spacing:-.07em;line-height:.84;white-space:nowrap;
  text-align:center;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.22);margin:30px 0 40px;user-select:none}
.foot-word span{display:inline-block;transition:color .5s,-webkit-text-stroke-color .5s}
.foot-row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--line-d);font-size:13px;color:rgba(255,255,255,.45)}
.foot-row nav{display:flex;gap:18px;flex-wrap:wrap}

/* ---------------- RESPONSIVE ---------------- */
@media (max-width:1100px){
  .nav-links{display:none}
  .menu-btn{display:block}
  .nav-cta .btn-ghost-d{display:none}
  .ptable{grid-template-columns:repeat(2,1fr)}
  .feat{grid-template-columns:1fr 1fr}
  .gc-1{left:auto;right:40%;top:auto;bottom:30%}
}
@media (max-width:900px){
  .hero{display:block;min-height:0;padding:0 0 40px;--mh:min(112vw,66svh)}
  .hero-media{top:58px;left:0;right:0;bottom:auto;width:auto;height:var(--mh);border-radius:0}
  .hero-img{object-position:52% 0%}
  .hero-veil{background:linear-gradient(0deg,var(--mid) 0%,rgba(7,11,20,.72) 16%,rgba(7,11,20,0) 44%),linear-gradient(180deg,var(--mid) 0%,rgba(7,11,20,0) 12%),linear-gradient(90deg,rgba(7,11,20,.35),rgba(7,11,20,0) 30%)}
  .lamp{right:-22%;top:26%;width:44%}
  .hero-grid{padding-top:calc(58px + var(--mh) - 110px)}
  .hero-copy{max-width:none}
  .gcard{display:none}
  .flask-home{left:auto;right:7%;top:calc(58px + var(--mh) * .5);width:50px}
  .scroll-cue{display:none}
  .sec-head,.ai-grid,.join-grid,.free-grid{grid-template-columns:1fr}
  .ways-grid{grid-template-columns:1fr;gap:14px}
  .way-art{height:230px}
  .phone-wrap{margin-top:20px}
  .fc-1{left:-2%}.fc-2{right:-2%}
  .grades{grid-template-columns:repeat(3,1fr)}
  .tt-card{grid-template-columns:1fr}
  .tt-side{min-height:0;flex-direction:row;align-items:flex-end}
  .tt-side .big{font-size:96px}
  .tt-row{grid-template-columns:1fr auto;gap:6px 14px}
  .tt-row .time{grid-column:1/-1;padding-left:54px}
  .contact{grid-template-columns:1fr}
}
@media (max-width:560px){
  .hero-kicker .sep,.hero-kicker .k2{display:none}
  .tt-side{justify-content:space-between;align-items:flex-end;padding:24px}
  .tt-side .big{font-size:84px}
  .tt-side .fee{text-align:right}
  .tt-side .fee b{font-size:26px}
  .fee span{font-size:14px}
  .hero h1{font-size:clamp(44px,12.4vw,62px);margin:18px 0 16px}
  .hero-stats > div{padding-right:16px;margin-right:16px}
  .hero-stats b{font-size:22px}
  .hero-actions{margin:26px 0 30px}
  .hero-actions .btn{flex:1 1 auto}
  .ptable{grid-template-columns:1fr 1fr;gap:10px}
  .tile{min-height:0;padding:14px 14px 16px;border-radius:22px}
  .tile h3{font-size:21px;margin-top:10px}
  .tile .art{min-height:70px;margin:8px 0}
  .tile .art svg{max-height:78px}
  .tile p{font-size:12.5px}
  .tile-cat{height:22px;padding:0 8px;font-size:10.5px}
  .feat{grid-template-columns:1fr}
  .fcard{display:none}
  .grade{height:84px}
  .grade b{font-size:32px}
  .tt-rows{padding:4px 20px}
  .tt-row .day{font-size:21px}
  .ring-stage{--bw:130px;--bd:18px}
}

/* reduced motion: show the finished chat */
html.reduce .bub{opacity:1;transform:none}
html.reduce [data-typing]{display:none!important}
html.reduce [data-answer]{display:inline!important}
@media (max-width:560px){
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px 16px}
  .hero-stats > div{border:0;margin:0;padding:0}
}

/* reduced motion: no falling flask (a still one sits in the heading); tile art stays still */
html.reduce .flask-home{display:none}
html.reduce .ptable .art *{animation:none!important}

/* hover effects only where a real mouse exists */
@media (hover:hover){
.nav-links a:hover{opacity:1}
.nav-links a:hover::after{transform:scaleX(1);transform-origin:left}
.tile:hover{transform:translateY(-6px);box-shadow:0 30px 60px -30px rgba(11,18,34,.35);border-color:color-mix(in srgb,var(--c) 40%,transparent)}
.tile:hover::before{opacity:1}
.way:hover{transform:translateY(-8px);box-shadow:0 40px 70px -40px rgba(11,18,34,.6)}
.way:hover .way-art svg{transform:scale(1.05)}
.feat div:hover{background:rgba(255,255,255,.07);border-color:var(--line-d2)}
.grade:hover{transform:translateY(-3px);border-color:var(--ink)}
.social:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.video:hover .play{transform:scale(1.1);background:var(--ember)}
.contact a:hover{background:rgba(255,255,255,.08);border-color:var(--line-d2);transform:translateY(-4px)}
.foot-word span:hover{color:var(--ember);-webkit-text-stroke-color:var(--ember)}
.foot-row a:hover{color:#fff}
}

/* ---------------- signed in: "My LMS" + profile picture in the top bar ---------------- */
.nav-cta .pm-btn{width:44px;height:44px;border-radius:50%;font-size:14px;box-shadow:0 0 0 2px rgba(255,255,255,.22)}
.nav-cta .pm-pop{top:calc(100% + 16px)}
.my-lms .arr{background:rgba(255,255,255,.2)}
@media (max-width:1100px){
  html.is-in .nav-cta .pm.in-only{display:none!important}
  .my-lms .arr{display:none}
}
/* phones: the AI section stays light, so the page never stutters or feels stuck while it comes in */
@media (max-width:900px){
  .ai-bg{clip-path:none!important}
  .phone{pointer-events:none}
  .fcard{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(20,28,50,.92)}
}