/* ---------- Learn & explore ---------- */
.lhead{display:flex;gap:16px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.lhead .lead{max-width:760px}
.ltabs{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 18px;padding:6px;border:1px solid var(--line);border-radius:16px;background:var(--card2)}
.ltabs button{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:12px;border:1px solid transparent;background:none;color:var(--muted);font:inherit;font-weight:600;cursor:pointer}
.ltabs button:hover{color:var(--ink);background:var(--card)}
.ltabs button.on{background:var(--card);color:var(--ink);border-color:var(--line2);box-shadow:var(--glow)}
.ltabs .ic2{width:18px;height:18px}
.tiny{font-size:11.5px;line-height:1.45}
.xrband{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.xrband .seg{flex-wrap:wrap}
.studio{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,1fr);gap:18px;align-items:start}
@media(max-width:900px){.studio{grid-template-columns:1fr}}
.stage3d{position:relative;aspect-ratio:4/3;border-radius:22px;overflow:hidden;border:1px solid var(--line2);
  background:radial-gradient(120% 90% at 50% 35%,var(--card) 0%,var(--card2) 55%,var(--bg2) 100%)}
.stage3d canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;cursor:grab;outline:none}
.stage3d canvas:active{cursor:grabbing}
.stage3d canvas:focus-visible{box-shadow:inset 0 0 0 3px var(--mint)}
.stage3d video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:none}
.stage3d.ar.cam video{display:block}
.stage3d.ar{background:linear-gradient(180deg,#d9d2c6 0%,#cfc6b6 58%,#a98f72 58.2%,#9a805f 100%)}
.stage3d.ar.cam{background:#000}
.stage3d.ar::after{content:"";position:absolute;inset:14px;border-radius:16px;pointer-events:none;
  background:linear-gradient(var(--mint),var(--mint)) top left/26px 3px no-repeat,linear-gradient(var(--mint),var(--mint)) top left/3px 26px no-repeat,
  linear-gradient(var(--mint),var(--mint)) top right/26px 3px no-repeat,linear-gradient(var(--mint),var(--mint)) top right/3px 26px no-repeat,
  linear-gradient(var(--mint),var(--mint)) bottom left/26px 3px no-repeat,linear-gradient(var(--mint),var(--mint)) bottom left/3px 26px no-repeat,
  linear-gradient(var(--mint),var(--mint)) bottom right/26px 3px no-repeat,linear-gradient(var(--mint),var(--mint)) bottom right/3px 26px no-repeat}
.stage3d.vr{background:#0c1416;aspect-ratio:2/1}
.xrbar{position:absolute;top:10px;inset-inline:10px;display:flex;gap:6px;flex-wrap:wrap;z-index:2}
.xrbar button,.xrctl button{display:inline-flex;align-items:center;gap:6px;padding:7px 11px;border-radius:999px;border:1px solid var(--line2);background:var(--hdr);color:var(--ink);font:inherit;font-size:13px;font-weight:600;cursor:pointer;backdrop-filter:blur(8px)}
.xrbar button.on,.xrctl button.on{background:var(--mint);color:var(--mintink);border-color:var(--mint)}
.xrbar .ic2,.xrctl .ic2{width:16px;height:16px}
.xrctl{position:absolute;bottom:10px;inset-inline:10px;display:flex;gap:6px;flex-wrap:wrap;justify-content:center;z-index:2}
.xrctl button[data-act=x3z]{width:34px;justify-content:center;font-size:17px;padding:5px 0}
.xrnote{position:absolute;top:56px;inset-inline:14px;z-index:2;padding:8px 12px;border-radius:12px;background:var(--hdr);border:1px solid var(--line2);font-size:12.5px;color:var(--text2);backdrop-filter:blur(8px)}
.hsl{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.hsl button{display:inline-flex;align-items:center;gap:7px;padding:6px 11px 6px 6px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;font-size:13px;cursor:pointer}
.hsl button i{font-style:normal;display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--mint);color:var(--mintink);font-weight:700;font-size:12px}
.hsl button.on{border-color:#F0BE46;box-shadow:0 0 0 2px rgba(240,190,70,.35)}
.hsl button.on i{background:#F0BE46;color:#3A2A00}
.guide{position:sticky;top:86px;display:flex;flex-direction:column;gap:12px}
.ghead{display:flex;align-items:center;gap:12px}
.ghead>div{flex:1;display:flex;flex-direction:column}
.gav{width:54px;height:54px;flex:none}
.gav.sm{width:40px;height:40px}
.gav .g1{fill:rgba(var(--accrgb),.12);stroke:var(--mint);stroke-width:2}
.gav .g2{fill:none;stroke:rgba(var(--accrgb),.4);stroke-width:1.5;stroke-dasharray:3 4}
.gav .g3{fill:var(--card)}
.gav .gn{transform-origin:32px 32px;animation:gneedle 6s ease-in-out infinite}
.gav .gn path{fill:var(--mint)}.gav .gn path.s{fill:var(--sand)}
.gav.talk .g1{animation:gpulse .9s ease-in-out infinite}
@keyframes gneedle{0%,100%{transform:rotate(-14deg)}50%{transform:rotate(16deg)}}
@keyframes gpulse{0%,100%{stroke-width:2;r:29}50%{stroke-width:4;r:27}}
.bubble{position:relative;padding:14px 16px;border-radius:16px;background:var(--card2);border:1px solid var(--line2);line-height:1.6;min-height:96px;animation:bin .35s ease}
.bubble::before{content:"";position:absolute;top:-8px;inset-inline-start:22px;width:14px;height:14px;background:var(--card2);border-inline-start:1px solid var(--line2);border-top:1px solid var(--line2);transform:rotate(45deg)}
[dir=rtl] .bubble::before{transform:rotate(-45deg)}
@keyframes bin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.gnav{display:flex;align-items:center;gap:8px;justify-content:space-between}
.gdots{display:flex;gap:5px;flex-wrap:wrap;justify-content:center}
.gdots i{width:8px;height:8px;border-radius:50%;background:var(--line2)}
.gdots i.done{background:rgba(var(--accrgb),.5)}.gdots i.on{background:var(--mint);width:20px;border-radius:4px}
.gask{display:flex;gap:6px}
.gask input{flex:1;min-width:0;padding:9px 12px;border-radius:12px;border:1px solid var(--line2);background:var(--card);color:var(--ink);font:inherit}
.btn[disabled]{opacity:.45;pointer-events:none}
.lnotes{margin-top:18px}
/* guides */
.bands{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin-bottom:16px}
@media(max-width:900px){.bands{grid-template-columns:repeat(3,minmax(0,1fr))}}
.bandc{display:flex;flex-direction:column;gap:4px;padding:14px;border-radius:16px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;text-align:start;cursor:pointer;transition:transform .2s}
.bandc:hover{transform:translateY(-2px)}
.bandc.on{border-color:var(--mint);box-shadow:var(--glow)}
.bandc .bage{font-size:22px;font-weight:800;color:var(--mint)}
.mods{display:grid;gap:8px}
.mod{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:14px;border:1px solid var(--line);background:var(--card2);color:var(--ink);font:inherit;text-align:start;cursor:pointer}
.mod:hover{border-color:var(--mint)}
.mod .mn{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:rgba(var(--accrgb),.14);color:var(--mint);font-weight:700;flex:none}
.mod>span:last-child{display:flex;flex-direction:column}
.mod small{color:var(--muted)}
.qz{padding:10px 0;border-top:1px solid var(--line)}
.qzb{display:flex;gap:8px}
.qzr{margin:8px 0 0;padding:8px 12px;border-radius:10px;font-size:14px}
.qzr.ok{background:rgba(var(--greenrgb),.12);color:var(--green)}.qzr.no{background:rgba(var(--coralrgb),.12);color:var(--coral)}
/* leaflets */
.lfilt{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.leafs{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.leafc{display:flex;flex-direction:column;gap:6px;padding:16px;border-radius:18px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;text-align:start;cursor:pointer;transition:transform .2s,border-color .2s}
.leafc:hover{transform:translateY(-3px);border-color:var(--mint)}
.lic{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;background:rgba(var(--accrgb),.12);color:var(--mint)}
.ltags{display:flex;gap:4px;flex-wrap:wrap;margin-top:auto}
.ltags i,.pfor i{font-style:normal;font-size:11.5px;padding:2px 8px;border-radius:999px;background:var(--card2);border:1px solid var(--line);color:var(--muted)}
.lmodal{position:fixed;inset:0;z-index:50;background:rgba(5,12,14,.55);display:grid;place-items:center;padding:20px;overflow:auto;animation:bin .25s ease}
.paper{width:min(860px,100%);background:#fffdf8;color:#1b2624;border-radius:18px;padding:28px 30px;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.paper .phd{display:flex;justify-content:space-between;align-items:center;border-bottom:2px solid #24506C;padding-bottom:10px;color:#24506C}
.pbrand{display:flex;align-items:center;gap:8px;font-weight:800}
.paper h2{margin:16px 0 4px;color:#1C3A50}
.plead{font-size:17px;color:#3B4C5A;margin:0 0 14px}
.pgrid{display:grid;grid-template-columns:1.2fr 1fr;gap:22px}
@media(max-width:700px){.pgrid{grid-template-columns:1fr}}
.paper h3{font-size:15px;margin:14px 0 6px;color:#1C3A50;display:flex;align-items:center;gap:6px}
.paper ul{margin:0;padding-inline-start:20px}.paper li{margin:4px 0}
.pdoc{background:#fff1ea;border:1px solid #f3c7b2;border-radius:14px;padding:4px 14px 12px}
.pmyth{margin-top:12px;background:#EEF5F8;border:1px solid #C9DCE6;border-radius:14px;padding:4px 14px}
.pfor{margin-top:12px;display:flex;gap:4px;flex-wrap:wrap;align-items:center}
.psrc{font-size:12px;color:#5B6B78;border-top:1px solid #e3e7e4;margin-top:18px;padding-top:10px}
.pact{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.paper .btn.ghost{color:#1C3A50;border-color:#c2d0cc}
@media print{body *{visibility:hidden!important}.paper,.paper *{visibility:visible!important}.lmodal{position:absolute;inset:0;background:none;padding:0;display:block}
  .paper{box-shadow:none;width:100%;padding:0}.pact{display:none}}
/* culture */
.cgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
@media(max-width:900px){.cgrid{grid-template-columns:1fr}}
.cdim{position:relative}
.cdim .cn{position:absolute;top:12px;inset-inline-end:14px;font-size:28px;font-weight:800;color:rgba(var(--accrgb),.25)}
.cdim h3{display:flex;align-items:center;gap:8px}
.cp{font-weight:600;color:var(--mint);margin:8px 0}
.planr{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
@media(max-width:900px){.planr{grid-template-columns:1fr}}
.msg{margin-top:12px}
.msg blockquote{margin:8px 0;padding:10px 14px;border-inline-start:4px solid var(--mint);background:var(--card2);border-radius:10px;font-size:15.5px}
.picto{width:100%;max-width:320px;color:var(--mint);margin-top:6px}
.aplan{margin:10px 0 0;padding-inline-start:22px}
.aplan li{margin:8px 0;line-height:1.5}
.aplan .tag{display:inline-block;margin-inline-end:8px;font-size:11px;padding:2px 8px;border-radius:999px;background:rgba(var(--accrgb),.12);color:var(--mint);font-weight:700}
.proc{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:18px 0 8px}
@media(max-width:800px){.proc{grid-template-columns:repeat(2,minmax(0,1fr))}}
.proc div{position:relative;padding:12px;border-radius:14px;background:var(--card);border:1px solid var(--line);display:flex;flex-direction:column;gap:2px}
.proc i{font-style:normal;display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--mint);color:var(--mintink);font-weight:700;font-size:12px;margin-bottom:4px}
/* visuals */
.vlay{display:grid;grid-template-columns:250px minmax(0,1fr);gap:16px;align-items:start}
@media(max-width:800px){.vlay{grid-template-columns:1fr}}
.vlist{display:flex;flex-direction:column;gap:6px}
.vlist button{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:14px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;text-align:start;cursor:pointer}
.vlist button.on{border-color:var(--mint);box-shadow:var(--glow)}
.vsvg svg{width:100%;height:auto;display:block;margin:10px 0}
.vguide{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:14px;background:var(--card2);border:1px solid var(--line)}
.vguide p{margin:0;flex:1;line-height:1.6}
.vt{fill:var(--ink);font:13px Arial,sans-serif;text-anchor:middle}
.vt.b{font-weight:700}.vt.s{fill:var(--muted);font-size:12px}.vt.l{text-anchor:start}.vt.o{fill:#C08A12}
.vax{stroke:var(--line2);stroke-width:1.5}.vg{stroke:var(--line2);stroke-dasharray:3 4}
.varea{fill:rgba(var(--rosergb),.14);animation:vfade 1.4s ease both}
.vline{fill:none;stroke:var(--rose);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.vline.draw{stroke-dasharray:1400;stroke-dashoffset:1400;animation:vdraw 2.2s ease forwards}
.vdot{fill:var(--card);stroke:var(--rose);stroke-width:3}
.vpop{animation:vpop .6s cubic-bezier(.2,1.4,.4,1) both;animation-delay:1.2s;transform-box:fill-box;transform-origin:center}
@keyframes vdraw{to{stroke-dashoffset:0}}@keyframes vfade{from{opacity:0}}@keyframes vpop{from{opacity:0;transform:scale(.6)}}
circle.w{fill:var(--card2);stroke:var(--line2);stroke-width:2;animation:vpop .5s both}
circle.w.on{fill:var(--mint);stroke:var(--mint)}
.vbar{fill:rgba(var(--lilacrgb),.22);stroke:var(--lilac)}.vbar2{fill:rgba(var(--accrgb),.18);stroke:var(--mint)}
.sp{fill:var(--sky);animation:spgo 5.4s linear infinite;opacity:0}
@keyframes spgo{0%{transform:translateX(0);opacity:0}5%{opacity:1}92%{opacity:1}100%{transform:translateX(520px);opacity:0}}
.pc{stroke-width:2}.pc.ok{fill:rgba(var(--greenrgb),.16);stroke:var(--green)}.pc.cr{fill:rgba(var(--sandrgb),.2);stroke:var(--sand)}.pc.af{fill:rgba(var(--rosergb),.16);stroke:var(--rose)}
.cd{animation:vpop .4s both}.cd.m{fill:var(--rose)}.cd.f{fill:rgba(var(--accrgb),.55)}.cd.o{fill:#F0BE46}.cd.l{fill:rgba(var(--lilacrgb),.45)}.cd.n{fill:var(--line2)}
.fwin{fill:none;stroke:var(--mint);stroke-width:2.5;stroke-dasharray:6 5}
.mover{fill:var(--ink);animation:mv 7s linear infinite}
@keyframes mv{from{transform:translateX(0)}to{transform:translateX(540px)}}
.mb{animation:vfade 1s both}.mb.r{fill:rgba(var(--accrgb),.2)}.mb.p{fill:rgba(var(--sandrgb),.35)}.mb.q{fill:rgba(var(--lilacrgb),.25)}
.flag{stroke:var(--coral);stroke-width:3;stroke-linecap:round}
.llinks{margin-top:14px}.llinks h3{display:flex;align-items:center;gap:8px}
@media(prefers-reduced-motion:reduce){.vline.draw,.varea,.vpop,circle.w,.sp,.cd,.mover,.mb,.gav .gn,.bubble{animation:none!important;stroke-dashoffset:0}.sp{opacity:1}}
.pillars{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
@media (min-width:721px){nav a{padding:8px 9px;font-size:13.5px}}
.hwrap{max-width:1360px}
/* studio toolbars sit outside the 3D view so nothing covers the model */
.xrbar{position:static;display:flex;flex-wrap:nowrap;overflow-x:auto;gap:6px;margin:0 0 8px;padding-bottom:2px;scrollbar-width:none}
.xrbar::-webkit-scrollbar{display:none}
.xrbar button{flex:none;white-space:nowrap;backdrop-filter:none;background:var(--card)}
.xrctl{position:static;display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin:8px 0 0}
.xrctl button{backdrop-filter:none;background:var(--card)}
.xrnote{position:static;margin:8px 0 0;backdrop-filter:none;background:var(--card2)}
@media (max-width:640px){.stage3d{aspect-ratio:1/1}.stage3d.vr{aspect-ratio:16/10}.xrband .seg{flex-wrap:nowrap;overflow-x:auto}.xrband .seg button{white-space:nowrap}}
@media (max-width:900px){.guide{position:static}}
@media (max-width:900px){.studio{grid-template-columns:minmax(0,1fr)}.studio>*{min-width:0}}
@media (max-width:720px){header{position:relative}}