/* AXIS home v2 — extends styles.css (Graph Paper Studio). Loaded after styles.css. */
.skip{position:absolute;left:-9999px;top:8px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px;z-index:100}
.skip:focus{left:12px}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:8px}
.nav-cta .btn-sm{padding:10px 18px}
.m-start{display:none}

/* shared paper */
.pp{background:#fff;border:1px solid var(--line);border-radius:9px;box-shadow:var(--shadow-lg);padding:16px 18px;font-size:12px;position:relative;color:var(--ink)}
.pp .sh-head{margin-bottom:10px;padding-bottom:8px}
.pp .sh-title{font-size:15px}
.pp .sh-meta{font-size:9.5px;letter-spacing:.02em}
.pp .sh-name{font-size:10px}
.pp .sh-name b{font-size:12.5px}
.pp .tag-ver{position:absolute;top:-11px;right:14px;font-family:var(--f-mono);font-size:10px;font-weight:700;background:var(--ink);color:#fff;padding:3px 8px;border-radius:6px;letter-spacing:.04em}
.pp .q{grid-template-columns:18px 1fr;gap:6px;padding:8px 0}
.qn{font-family:var(--f-mono);font-weight:700;font-size:11px;color:var(--ink-2)}
.pp .q .txt{font-size:12px}
.blank{display:inline-block;width:44px;border-bottom:1.2px solid var(--ink-3);height:14px;vertical-align:bottom;margin-left:3px}
.mixed{display:inline-flex;align-items:center;font-family:var(--f-mono);font-size:12px;gap:1px}
.kind{font-family:var(--f-mono);font-size:9.5px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--accent-d)}

/* hero */
.hero2{padding:80px 0 88px}
.hero2 .wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.hero2 h1{margin:0 0 24px;font-size:clamp(40px,5.2vw,68px)}
.hero2 .lead{font-size:clamp(19px,1.7vw,22px)}
.boldline{font-weight:700;font-size:clamp(18px,1.6vw,21px);margin-top:18px;color:var(--ink)}
.hero2 .hero-ctas{margin-top:34px}
.btn-lg{font-size:18px;padding:17px 28px;border-radius:14px}
.comp-wrap{--s:1;width:100%;height:calc(600px*var(--s));position:relative}
.comp{position:absolute;left:50%;top:0;width:600px;height:600px;transform:translateX(-50%) scale(var(--s));transform-origin:top center}
.comp>*{position:absolute}
.c-sheet{left:0;top:56px;width:300px;transform:rotate(-2.5deg);z-index:3}
.c-slide{right:0;top:0;width:330px;transform:rotate(2deg);z-index:2}
.c-plan{right:6px;top:222px;width:262px;transform:rotate(1deg);z-index:4}
.c-quiz{left:176px;top:418px;width:250px;transform:rotate(-1deg);z-index:5}

/* slide */
.slide{background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-lg);overflow:hidden}
.slide .sl-bar{height:22px;background:var(--paper-2);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:5px;padding:0 9px}
.slide .sl-bar i{width:7px;height:7px;border-radius:50%;background:var(--line-2)}
.slide .sl-bar span{margin-left:auto;font-family:var(--f-mono);font-size:9px;color:var(--ink-3)}
.slide .sl-body{aspect-ratio:16/9;padding:14px 18px;background:#fff;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:18px 18px;display:flex;flex-direction:column}
.sl-title{font-family:var(--f-display);font-weight:700;font-size:17px;line-height:1.1}
.sl-kicker{font-family:var(--f-mono);font-size:9px;font-weight:700;letter-spacing:.08em;color:var(--accent-d);text-transform:uppercase;margin-bottom:4px}
.thumbs{display:flex;gap:6px;padding:8px 10px;background:var(--paper-2);border-top:1px solid var(--line)}
.thumbs i{flex:1;aspect-ratio:16/9;background:#fff;border:1px solid var(--line);border-radius:3px;display:block}
.thumbs i.on{outline:2px solid var(--accent);outline-offset:1px}

/* lesson plan */
.plan .ph{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}
.plan .obj{background:var(--paper);border-radius:7px;padding:7px 9px;margin:9px 0;font-size:11.5px;line-height:1.4}
.plan .obj b{font-family:var(--f-mono);font-size:9px;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-3);display:block}
.plan ol{list-style:none;display:flex;flex-direction:column;gap:5px}
.plan li{display:grid;grid-template-columns:50px 1fr;gap:8px;align-items:center;font-size:11.5px}
.plan li span{font-family:var(--f-mono);font-size:10px;font-weight:700;background:var(--blue-soft);color:var(--blue);border-radius:5px;padding:3px 0;text-align:center}
.plan li:nth-child(2) span{background:var(--accent-soft);color:var(--accent-d)}
.plan li:nth-child(3) span{background:var(--green-soft);color:var(--green)}
.plan li:nth-child(4) span{background:var(--amber-soft);color:#9a6a08}
.plan .tot{font-family:var(--f-mono);font-size:10px;font-weight:700;color:var(--ink-2);background:var(--paper-2);padding:3px 7px;border-radius:5px;white-space:nowrap}

/* quiz */
.quiz .qq{padding:6px 0;border-bottom:1px dashed var(--line)}
.quiz .qq:last-child{border-bottom:0}
.quiz .qq p{font-size:12px;font-weight:600}
.quiz .mc{grid-template-columns:repeat(4,1fr);gap:4px 8px;font-size:11px}
.score{font-family:var(--f-mono);font-size:10.5px;border:1.3px solid var(--ink);border-radius:6px;padding:3px 7px;white-space:nowrap}

/* gallery */
.gal-head{text-align:center;max-width:820px;margin:0 auto 56px}
.gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.tile{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-lg);height:440px;display:flex;align-items:center;justify-content:center;padding:22px 16px;overflow:hidden}
.tile .pp,.tile .slide-stack{width:100%;max-width:250px}
.tile:nth-child(odd) .pp{transform:rotate(-1deg)}
.tile:nth-child(even) .pp{transform:rotate(1deg)}

/* long division */
.ld{display:inline-flex;align-items:flex-end;font-family:var(--f-mono);font-size:13px;line-height:1;margin-top:16px}
.ld .dv{padding:3px 1px 2px 0}
.ld .dd{border-top:1.5px solid var(--ink);padding:3px 3px 2px 9px;letter-spacing:.12em;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 20' preserveAspectRatio='none'%3E%3Cpath d='M1 0 Q8 10 1.2 20' fill='none' stroke='%2315233F' stroke-width='1.5' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E") left top/7px 100% no-repeat}
.ld-grid{display:grid;grid-template-columns:repeat(5,11px);grid-auto-rows:15px;font-family:var(--f-mono);font-size:12.5px;text-align:center;line-height:15px;color:var(--ink)}
.ld-grid .w{color:#2C2C54;font-weight:700}
.ld-grid .ov{border-top:1.5px solid var(--ink)}
.ld-grid .br{background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 20' preserveAspectRatio='none'%3E%3Cpath d='M1 0 Q8 10 1.2 20' fill='none' stroke='%2315233F' stroke-width='1.5' vector-effect='non-scaling-stroke'/%3E%3C/svg%3E") left top/7px 100% no-repeat}
.ld-grid .ul{border-bottom:1.3px solid #2C2C54}
.ld-ex{display:flex;gap:14px;align-items:flex-start;background:var(--paper);border-radius:7px;padding:8px 10px;margin-bottom:6px}
.ld-row{display:grid;grid-template-columns:1fr 1fr;gap:4px 10px}
.ld-row>div{display:flex;gap:4px;align-items:flex-end;font-family:var(--f-mono);font-size:11px;font-weight:700;color:var(--ink-2);height:52px}

/* maze */
.maze{display:grid;grid-template-columns:repeat(5,1fr);gap:3px;margin-top:8px}
.maze span{aspect-ratio:1;display:grid;place-items:center;font-family:var(--f-mono);font-size:12px;font-weight:700;border:1.3px solid var(--ink);border-radius:5px;background:#fff}
.maze span.p{background:var(--hl);border-color:#C9A400}
.maze-ends{display:flex;justify-content:space-between;font-family:var(--f-mono);font-size:9px;font-weight:700;letter-spacing:.07em;margin-top:6px;color:var(--ink-2)}

/* exit ticket */
.exit{border-style:dashed;border-width:1.5px;border-color:var(--line-2)}
.faces{display:flex;gap:8px;margin-top:6px}
.faces svg{width:24px;height:24px}
.work{height:46px;border:1px dashed var(--line-2);border-radius:6px;margin-top:5px}

/* groups */
.grp-head{max-width:760px;margin:0 auto 56px;text-align:center}
.grp-head p{margin:18px auto 0;color:var(--ink-2);font-size:19px;max-width:680px}
.grp-head h3{margin-top:22px;font-size:22px}
.groups{display:grid;grid-template-columns:1fr 36px 1fr 36px 1fr;gap:12px;align-items:center}
.g-arrow{display:grid;place-items:center;color:var(--ink-3)}
.g-col{display:flex;flex-direction:column;gap:14px;align-items:stretch}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin:2px 0 8px}
.chips span{font-size:10.5px;font-weight:650;background:var(--blue-soft);color:var(--blue);border-radius:999px;padding:3px 9px}
.area{display:grid;border:1.5px solid var(--ink);border-radius:3px;font-family:var(--f-mono);font-size:11px;text-align:center;margin-top:6px}
.area div{padding:7px 2px;border-right:1.5px solid var(--ink)}
.area div:last-child{border-right:0}
.area-top{display:grid;font-family:var(--f-mono);font-size:10px;color:var(--ink-3);text-align:center;margin-top:6px}
.strip{padding:11px 14px}
.strip .sh-head{margin-bottom:6px;padding-bottom:6px}
.strip .two{display:grid;grid-template-columns:1fr 1fr;gap:10px;font-family:var(--f-mono);font-size:12px;font-weight:600}

/* cycle */
.cycle-sec{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cycle{list-style:none;position:relative;max-width:1100px;margin:0 auto;aspect-ratio:1100/760}
.cycle>svg{position:absolute;inset:0;width:100%;height:100%}
.cstep{position:absolute;width:252px;transform:translate(-50%,-50%);background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:20px 20px 18px;text-align:center}
.cstep .ic{width:52px;height:52px;border-radius:15px;background:var(--ink);display:grid;place-items:center;margin:0 auto 12px}
.cstep h3{font-size:21px;margin-bottom:6px}
.cstep p{color:var(--ink-2);font-size:15.5px;line-height:1.45}
.s-build{left:50%;top:14.5%}
.s-print{left:82.7%;top:50%}
.s-teach{left:50%;top:85.5%}
.s-check{left:17.3%;top:50%}
.s-back{left:20%;top:15.5%;width:270px;background:var(--hl);border-color:#E9C84A;text-align:left;display:grid;grid-template-columns:44px 1fr;gap:12px;align-items:start;padding:16px 18px}
.s-back .ic{width:44px;height:44px;border-radius:12px;background:var(--accent);margin:0}
.s-back h3{font-size:19px;margin-bottom:4px}
.s-back p{color:var(--ink);font-size:14.5px}
.cycle-center{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:112px;height:112px;border-radius:50%;background:var(--paper);border:1.5px dashed var(--line-2);display:grid;place-items:center}
.cycle-center .logo-mark{width:56px;height:56px;border-radius:16px}
.cycle-center .logo-mark svg{width:32px;height:32px}

/* math right */
.right{display:grid;grid-template-columns:1fr 64px 1fr 64px 1fr;align-items:center;max-width:1080px;margin:0 auto}
.r-arrow{display:grid;place-items:center}
.engine{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:24px 24px;box-shadow:var(--shadow-lg);font-family:var(--f-mono);position:relative}
.engine .row{display:flex;align-items:center;gap:8px;font-size:16px;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.engine .row:last-child{border-bottom:0}
.engine .row .eq{color:var(--hl);width:14px}
.engine .frac{font-size:15px}
.engine .mixed{font-size:16px}
.engine .row.fin{color:var(--hl);font-weight:700}
.engine .ok{margin-left:auto;width:26px;height:26px;border-radius:50%;background:var(--green);display:grid;place-items:center;color:#fff;font-size:14px;font-family:var(--f-body);font-weight:800}
.engine .gear{position:absolute;top:-16px;left:22px;width:34px;height:34px;border-radius:10px;background:var(--accent);display:grid;place-items:center}
.ws .q{align-items:center}
.ws .q.on,.key .kl.on{background:linear-gradient(transparent 8%,rgba(255,226,122,.85) 8%,rgba(255,226,122,.85) 92%,transparent 92%);border-radius:4px}
.key .kl{display:grid;grid-template-columns:20px 1fr 22px;align-items:center;padding:8px 4px;border-bottom:1px dashed var(--line);font-family:var(--f-mono);font-size:12.5px}
.key .kl:last-child{border-bottom:0}
.key .kl .qn{font-weight:700;color:var(--ink-2);font-size:11px}
.key .kl .t{color:var(--green);font-weight:800;text-align:right}
.big .q .txt,.big .mixed,.big .frac{font-size:13.5px}

/* faq */
.faq2 details{padding:22px 0}
.faq2 summary{font-size:21px;align-items:center}
.faq2 summary::-webkit-details-marker{display:none}
.faq2 details p{font-size:17px;line-height:1.6;margin-top:12px}
.faq2 .note{font-size:11px}

/* final */
.final2{text-align:center;padding:112px 0}
.final2 .papers{display:flex;justify-content:center;margin-bottom:40px}
.final2 .papers i{display:block;width:78px;height:100px;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:var(--shadow);margin:0 -10px;position:relative;background-image:linear-gradient(var(--line) 2px,transparent 2px);background-size:100% 14px;background-position:0 26px;background-clip:content-box;padding:0 12px}
.final2 .papers i:nth-child(1){transform:rotate(-10deg) translateY(8px)}
.final2 .papers i:nth-child(2){transform:translateY(-6px);z-index:1;border-top:6px solid var(--accent)}
.final2 .papers i:nth-child(3){transform:rotate(10deg) translateY(8px)}

/* footer v2 */
.foot2{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.foot2 nav{display:flex;gap:28px;flex-wrap:wrap}
.foot2 nav a{color:#B5BCB3;font-weight:550}
.foot2 nav a:hover{color:#fff}
footer.f2{padding:44px 0}

/* responsive */
@media (max-width:1180px){
  .comp-wrap{--s:.82}
  .cycle{aspect-ratio:auto;display:flex;flex-direction:column;gap:44px;max-width:560px;padding-left:56px}
  .cycle>svg,.cycle-center{display:none}
  .cstep,.s-back{position:relative;left:auto;top:auto;transform:none;width:auto;text-align:left;display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:center}
  .cstep .ic{margin:0}
  .cstep:not(.s-back)::after{content:"";position:absolute;left:50%;bottom:-38px;width:2.5px;height:30px;background:var(--ink-3);transform:translateX(-50%)}
  .cstep:not(.s-back)::before{content:"";position:absolute;left:50%;bottom:-40px;transform:translateX(-50%);border:6px solid transparent;border-top:8px solid var(--ink-3);border-bottom:0}
  .s-back{order:5}
  .cycle::before{content:"";position:absolute;left:14px;top:62px;bottom:60px;width:34px;border:3px solid var(--accent);border-right:0;border-radius:18px 0 0 18px}
  .cycle::after{content:"";position:absolute;left:44px;top:55px;border:8px solid transparent;border-left:11px solid var(--accent);border-right:0}
}
@media (max-width:980px){
  .hero2 .wrap{grid-template-columns:1fr;gap:48px}
  .gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
  .groups{grid-template-columns:1fr;max-width:420px;margin:0 auto}
  .g-arrow{transform:rotate(90deg);height:28px}
  .right{grid-template-columns:1fr;max-width:400px;gap:6px}
  .r-arrow{transform:rotate(90deg);height:56px}
  .m-start{display:inline-flex;margin-left:auto}
  .burger{margin-left:10px}
}
@media (max-width:640px){
  .hero2{padding:48px 0 56px}
  .comp-wrap{--s:.58}
  .gallery{grid-template-columns:minmax(0,1fr);max-width:340px;margin:0 auto}
  .tile{height:auto;min-height:0;padding:28px 18px}
  .hero2 .hero-ctas .btn{width:100%}
  .final2 .btn{width:100%}
  .cycle{padding-left:48px}
  .cycle::before{left:6px;width:30px}
  .cycle::after{left:32px}
  .cstep{grid-template-columns:44px 1fr;padding:16px;gap:14px}
  .cstep .ic{width:44px;height:44px;border-radius:12px}
  .cstep h3{font-size:19px}
  .faq2 summary{font-size:18px}
  .foot2{flex-direction:column;align-items:flex-start}
  .foot2 nav{gap:14px 22px}
  .nav .wrap{gap:10px}
}
@media (max-width:380px){.comp-wrap{--s:.54}}

.pp .sh-head{gap:10px}
.pp .sh-head>div:first-child{flex:1;min-width:0}
.pp .sh-name{flex:none;white-space:nowrap}
.tile .pp .sh-name b{width:auto}
.quiz .mc{display:flex;flex-wrap:wrap;gap:4px 12px;font-size:11px}
.quiz .mc span{white-space:nowrap}
.comp{width:640px;height:610px}
.c-sheet{left:0;top:60px;width:292px}
.c-slide{right:0;top:0;width:318px}
.c-plan{right:0;top:212px;width:276px}
.c-quiz{left:190px;top:436px;width:262px}
.comp-wrap{height:calc(610px*var(--s))}
@media (max-width:640px){.comp-wrap{--s:.55}}
@media (max-width:380px){.comp-wrap{--s:.5}}
.c-plan{top:196px}
.c-quiz{left:136px;top:452px}
.comp,.comp-wrap{height:650px}
.comp-wrap{height:calc(650px*var(--s))}
.quiz .mc{gap:4px 9px;font-size:10.5px}
.quiz .mc{flex-wrap:nowrap;justify-content:space-between;gap:4px;font-size:10px}
.quiz .mc span{gap:4px}
.quiz .mc span::before{width:9px;height:9px}
.c-quiz{width:270px}
.tile .pp .sh-name b{width:auto}