/* Gamath Travel Academy - self-contained CSS. No fonts, no CDN, no @import. */
:root{
  --bg:#fffaf6; --panel:#fffefd; --panel2:#fff5f1; --line:#eadbd6; --edge:#8c817d;
  --text:#382f3a; --muted:#5d5360; --white:#2e2633;
  --emerald:#17634f; --cyan:#0e6574; --amber:#85520e; --red:#a43d50;
  --pink:#b73d68; --rose:#fff0f3; --leaf:#eaf6ec;
  --on-accent:#ffffff;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 95% 7%,rgba(249,192,207,.2),transparent 28%),radial-gradient(circle at 4% 38%,rgba(170,222,195,.18),transparent 25%),var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.55;overflow-wrap:anywhere}
img,svg{max-width:100%}
a{color:var(--cyan);text-underline-offset:2px}
a:hover{color:#0a4554}
h1,h2,h3{color:var(--white);line-height:1.25;margin:0 0 .5em}
h1{font-size:1.65rem}
h2{font-size:1.25rem;margin-top:1.6em}
h3{font-size:1.05rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin-bottom:.4em}
code,pre,.mono{font-family:var(--mono)}
code{background:var(--panel2);padding:.1em .35em;border-radius:4px;font-size:.9em}
:focus{outline:none}
:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:4px}
main:focus{outline:none}
.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:8px;top:-60px;background:#fff1bf;color:#342613;padding:10px 14px;border-radius:6px;z-index:100;font-weight:600}
.skip:focus{top:8px}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px}
.hidden,[hidden]{display:none!important}

/* header */
.site-header{background:#fffdfb;border-bottom:1px solid #e8d8d6;position:sticky;top:0;z-index:20;box-shadow:0 5px 24px rgba(97,63,76,.06)}
.hdr{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:4px 16px;padding-top:6px;padding-bottom:6px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--white);min-height:44px}
.logo{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;border:1px solid var(--emerald);color:var(--emerald);font-family:var(--mono);font-weight:700;font-size:.8rem;background:linear-gradient(135deg,#e8f8ed,#ffe6ee)}
.brand-t{display:flex;flex-direction:column;line-height:1.15}
.brand-t small{color:var(--muted);font-size:.72rem}
.nav{display:flex;flex-wrap:wrap;gap:2px}
.nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;color:var(--text);text-decoration:none;border-radius:8px;font-size:.92rem}
.nav a:hover{background:var(--panel2);color:var(--white)}
.nav a[aria-current="page"]{color:var(--emerald);background:#eaf6ec;box-shadow:inset 0 -3px 0 var(--emerald)}
main{min-height:60vh;padding:20px 0 40px}

/* generic blocks */
.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:16px;margin-bottom:16px;box-shadow:0 8px 24px rgba(88,52,65,.045)}
.card.accent{border-color:#9ccfb9;background:radial-gradient(circle at top left,#e7f7eb,transparent 60%),var(--panel)}
.card h2:first-child,.card h3:first-child{margin-top:0}
.grid{display:grid;gap:12px}
.g2{grid-template-columns:1fr}
.g3{grid-template-columns:1fr}
.lead{font-size:1.1rem;color:var(--text)}
.muted{color:var(--muted)}
.kicker{font-family:var(--mono);font-size:.74rem;text-transform:uppercase;letter-spacing:.06em;color:var(--emerald);margin:0 0 6px}
.prose{max-width:760px}
.prose h2{margin-top:1.8em}
.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.between{justify-content:space-between}
.journey-layers{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:12px;margin:14px 0}
.journey-layers .card{margin:0}
.journey-gate{padding:12px;border-left:4px solid var(--amber);background:var(--panel2);border-radius:8px}
.journey-choice{display:flex!important;width:100%;justify-content:flex-start!important;text-align:left;margin:8px 0;white-space:normal}
.journey-choice[aria-pressed=true]{border-color:var(--emerald);background:var(--leaf)}

/* controls */
.btn,button.btn,.btn-ghost,button.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;min-width:44px;padding:8px 16px;border-radius:999px;font:inherit;font-weight:700;font-size:.92rem;cursor:pointer;text-decoration:none;border:1px solid var(--emerald);background:var(--emerald);color:var(--on-accent)}
.btn:hover{background:#0e4d3d;color:var(--on-accent)}
.btn-ghost,button.btn-ghost{background:var(--panel2);color:var(--text);border-color:var(--edge)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--white);background:#eaf5f1}
.btn[disabled],.btn-ghost[disabled]{opacity:.45;cursor:not-allowed}
.btn.warn{background:#ffe8a9;border-color:#a47723;color:#352916}
.btn.danger{background:transparent;color:var(--red);border-color:var(--red)}
label.f{display:block;font-size:.85rem;color:var(--muted);margin-bottom:4px}
input[type=text],input[type=search],input[type=number],select,textarea{width:100%;min-height:44px;padding:8px 12px;background:var(--panel2);color:var(--text);border:1px solid var(--edge);border-radius:10px;font:inherit}
label.chk{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px}
input[type=file]{width:100%;min-height:44px;padding:6px;color:var(--text);background:var(--panel2);border:1px solid var(--edge);border-radius:10px;font:inherit}
input[type=file]::file-selector-button{min-height:44px;min-width:44px;padding:0 14px;margin-right:12px;border:1px solid var(--edge);border-radius:8px;background:var(--panel);color:var(--text);font:inherit;cursor:pointer}
textarea{min-height:90px;font-family:var(--mono);font-size:.85rem}
select{appearance:auto}
input[type=range]{width:100%;min-height:44px;accent-color:var(--cyan)}
input[type=checkbox],input[type=radio]{width:22px;height:22px;accent-color:var(--emerald);flex:none;margin:0}
fieldset{border:0;margin:0;padding:0;min-inline-size:0}
.studio-case{margin-top:16px}
.studio-case h3{margin-top:0}
.studio-option{display:flex;align-items:flex-start;gap:8px;padding:12px;margin:8px 0;border:1px solid var(--edge);border-radius:12px;background:var(--panel2);cursor:pointer}
.studio-option input{margin-top:2px;flex:none}
.studio-case form>.row{margin-top:16px}
.account-page{max-width:760px}
.account-page .card{margin-top:18px}
.account-code input{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.03em}
legend{padding:0}

.chip{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:999px;border:1px solid var(--edge);font-size:.78rem;color:var(--text);background:var(--panel2);white-space:nowrap}
.chip.ok{border-color:var(--emerald);color:var(--emerald)}
.chip.tier{border-color:var(--cyan);color:var(--cyan)}
.chip.soon{border-color:var(--amber);color:var(--amber)}

/* progress bar */
.bar{height:12px;border-radius:999px;background:#f2e8e5;border:1px solid #ccbcb9;overflow:hidden}
.bar>span{display:block;height:100%;width:0;background:linear-gradient(90deg,#368b68,#d15d83)}
.bar-l{display:flex;justify-content:space-between;gap:8px;font-size:.82rem;color:var(--muted);margin:6px 0 4px;font-family:var(--mono)}

/* home */
.hero{padding:8px 0 4px}
.hero h1{font-size:1.9rem}
.hero3d{position:relative;display:grid;gap:20px;align-items:center;margin:2px 0 28px;padding:clamp(18px,3vw,34px);overflow:hidden;border:1px solid #efcdd5;border-radius:30px;background:radial-gradient(circle at 90% 8%,#ffe5ec,transparent 34%),radial-gradient(circle at 8% 94%,#e5f5e9,transparent 38%),linear-gradient(125deg,#fffdf9,#fff1f4 58%,#f0f8ec);box-shadow:0 18px 44px rgba(119,71,90,.09)}
.hero-copy{position:relative;z-index:2}
.hero3d h1{font-size:clamp(1.9rem,4vw,3.2rem);max-width:14ch;letter-spacing:-.035em;line-height:1.08}
.hero3d .lead{max-width:62ch}
.bloom{position:absolute;z-index:0;width:120px;height:120px;pointer-events:none;opacity:.72}
.bloom-a{right:-26px;top:-32px;transform:rotate(15deg) scale(.86)}
.bloom-b{left:-48px;bottom:-55px;transform:rotate(-19deg) scale(1.15)}
.bloom .petal{position:absolute;left:50%;top:50%;width:35px;height:58px;margin:-54px 0 0 -17.5px;border-radius:60% 60% 48% 48%;transform-origin:50% 54px;background:linear-gradient(165deg,#f4a8bc,#e46a91);box-shadow:inset 4px 6px 10px rgba(255,255,255,.38)}
.bloom .petal:nth-child(1){transform:rotate(0deg)}.bloom .petal:nth-child(2){transform:rotate(60deg)}.bloom .petal:nth-child(3){transform:rotate(120deg)}.bloom .petal:nth-child(4){transform:rotate(180deg)}.bloom .petal:nth-child(5){transform:rotate(240deg)}.bloom .petal:nth-child(6){transform:rotate(300deg)}
.bloom .flower-center{position:absolute;left:50%;top:50%;width:25px;height:25px;margin:-12.5px;border-radius:50%;background:#f9d879;border:4px solid #fff5c9;box-shadow:0 2px 8px rgba(128,76,45,.16)}
.flight-stage{position:relative;z-index:1;isolation:isolate;overflow:hidden;min-height:290px;max-height:430px;aspect-ratio:1.15;border:1px solid #b7d8c4;border-radius:22px;background:radial-gradient(circle at 50% 44%,rgba(100,187,165,.22),transparent 37%),radial-gradient(circle at 82% 83%,rgba(245,157,183,.24),transparent 43%),#f7fff7;perspective:850px;contain:layout paint;box-shadow:inset 0 0 30px rgba(110,175,137,.1)}
.flight-stage::before{content:"";position:absolute;inset:0;background:linear-gradient(125deg,rgba(255,255,255,.7),transparent 28%,transparent 70%,rgba(228,154,177,.12));pointer-events:none}
.stage-grid{position:absolute;inset:0;opacity:.5;background-image:linear-gradient(rgba(64,134,117,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(64,134,117,.13) 1px,transparent 1px);background-size:28px 28px;mask-image:radial-gradient(circle at 50% 50%,#000,transparent 75%)}
.stage-assembly{position:absolute;width:270px;height:270px;left:50%;top:50%;margin:-135px 0 0 -135px;transform-style:preserve-3d;animation:stage-turn 18s ease-in-out infinite alternate}
.world{position:absolute;inset:43px;border-radius:50%;overflow:hidden;border:1px solid #6cbaa8;background:radial-gradient(circle at 27% 23%,#eaffea 0%,#a4dfce 16%,#58b7ae 42%,#318e91 72%,#1a657a 100%);box-shadow:inset -19px -15px 28px rgba(17,89,94,.37),inset 8px 8px 22px rgba(255,255,255,.5),0 13px 30px rgba(39,113,106,.22);transform:translateZ(18px)}
.world::before{content:"";position:absolute;inset:-10%;border-radius:50%;background:repeating-linear-gradient(90deg,transparent 0 27px,rgba(239,255,248,.4) 28px 29px,transparent 30px 52px),repeating-linear-gradient(0deg,transparent 0 24px,rgba(239,255,248,.32) 25px 26px,transparent 27px 48px);transform:rotate(-23deg) scale(.95);mask-image:radial-gradient(circle,#000 62%,transparent 73%)}
.world::after{content:"";position:absolute;inset:13%;border:1px solid rgba(255,255,255,.5);border-radius:50%;transform:rotate(-35deg) scaleX(.45)}
.orbit{position:absolute;border-radius:50%;pointer-events:none}
.orbit-a{inset:32px -3px;border:2px solid rgba(24,112,83,.72);box-shadow:0 0 14px rgba(45,138,101,.18);transform:rotate(-24deg) rotateX(62deg) translateZ(55px)}
.orbit-b{inset:15px 22px;border:1px dashed rgba(20,111,126,.75);transform:rotateY(69deg) rotateZ(23deg) translateZ(35px)}
.route-point{position:absolute;width:11px;height:11px;border-radius:50%;background:#b75b1a;box-shadow:0 0 0 5px rgba(242,175,73,.24),0 0 18px #dca24d;transform:translateZ(90px)}
.point-a{top:46px;left:37px}.point-b{right:33px;bottom:67px;background:var(--cyan);box-shadow:0 0 0 5px rgba(34,145,155,.15),0 0 18px #70bfc5}
.flight-marker{position:absolute;top:48px;right:41px;width:22px;height:26px;background:#fff;clip-path:polygon(50% 0,61% 39%,100% 65%,100% 76%,57% 62%,57% 85%,74% 95%,74% 100%,50% 92%,26% 100%,26% 95%,43% 85%,43% 62%,0 76%,0 65%,39% 39%);transform:translateZ(98px) rotate(42deg);filter:drop-shadow(0 0 4px rgba(34,78,75,.7))}
.stage-label{position:absolute;display:flex;flex-direction:column;gap:2px;min-width:122px;padding:9px 12px;border:1px solid #b9d8c7;border-radius:10px;background:rgba(255,255,255,.92);box-shadow:0 9px 24px rgba(95,116,104,.16);font-family:var(--mono);transform:translateZ(45px)}
.stage-label span{font-size:.64rem;letter-spacing:.12em;color:var(--cyan)}
.stage-label strong{font-size:.77rem;color:var(--white)}
.label-top{right:16px;top:19px;animation:label-float 5s ease-in-out infinite}
.label-bottom{left:16px;bottom:19px;animation:label-float 6s ease-in-out infinite reverse}
@keyframes stage-turn{from{transform:rotateX(-10deg) rotateY(-16deg) rotateZ(-3deg)}to{transform:rotateX(12deg) rotateY(30deg) rotateZ(6deg)}}
@keyframes label-float{0%,100%{transform:translateZ(45px) translateY(0)}50%{transform:translateZ(60px) translateY(-8px)}}
.track-card{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--text);margin:0;border-top:4px solid #d8698c}
.track-card:nth-child(3n+2){border-top-color:#3e9f7c}
.track-card:nth-child(3n){border-top-color:#54a5ad}
.track-card:hover{border-color:var(--cyan);color:var(--text)}
.track-card h3{margin:0}
.track-card p{margin:0;font-size:.9rem;color:var(--muted)}
.track-card.soon{opacity:.9;border-style:dashed}

/* catalogue */
.filters{display:grid;gap:10px;grid-template-columns:1fr}
.lesson-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;grid-template-columns:1fr}
.lesson-list li{margin:0}
.lcard{display:block;height:100%;text-decoration:none;color:var(--text);background:var(--panel);border:1px solid var(--line);border-left:4px solid #de86a2;border-radius:15px;padding:14px;min-height:44px;box-shadow:0 7px 20px rgba(88,52,65,.04)}
.lcard:hover{border-color:var(--cyan)}
@media (hover:hover) and (prefers-reduced-motion:no-preference){
  .track-card,.lcard{transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;transform-origin:center bottom}
  .track-card:hover,.track-card:focus-visible,.lcard:hover,.lcard:focus-visible{transform:perspective(800px) rotateX(2deg) translateY(-5px);box-shadow:0 15px 30px rgba(0,0,0,.25)}
}
.lcard h3{margin:4px 0 6px;font-size:1rem}
.lcard p{margin:0 0 8px;font-size:.88rem;color:var(--muted)}
.lcard .row{gap:6px}
.trk{font-size:.75rem;color:var(--muted)}

/* lesson */
.lesson h1{margin-top:6px}
.crumbs{font-size:.88rem;margin-bottom:8px}
.sec{margin-top:1.4em}
.example{white-space:pre-wrap;background:var(--panel2);border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:8px;padding:12px 14px}
.kp li::marker{color:var(--emerald)}
.mistakes li::marker{color:var(--amber)}
.note{border:1px dashed var(--edge);border-radius:8px;padding:10px 12px;font-size:.9rem;color:var(--muted)}
.pager{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:20px}
.pathbar{border:1px solid var(--cyan);border-radius:10px;padding:10px 14px;margin-bottom:14px;background:rgba(14,101,116,.06)}

/* quiz */
.quiz{margin-top:8px}
.q{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:12px}
.q legend{font-weight:600;color:var(--white);margin-bottom:10px;display:block;width:100%}
.q .qn{display:block;font-family:var(--mono);font-size:.74rem;color:var(--muted);font-weight:400;margin-bottom:2px}
.opt{display:flex;gap:10px;align-items:flex-start;min-height:44px;padding:10px 12px;margin-bottom:8px;border:1px solid var(--edge);border-radius:10px;cursor:pointer;background:var(--panel2)}
.opt:hover{border-color:var(--cyan)}
.opt .ol{font-family:var(--mono);font-weight:700;color:var(--cyan);flex:none;width:1.4em}
.opt .ot{flex:1}
.opt .tag{display:block;font-size:.8rem;font-weight:700;margin-top:2px}
.opt.right{border-color:var(--emerald);background:rgba(23,99,79,.09)}
.opt.right .tag{color:var(--emerald)}
.opt.wrong{border-color:var(--red);background:rgba(164,61,80,.09)}
.opt.wrong .tag{color:var(--red)}
.q.done .opt{cursor:default}
.fb{margin-top:6px;padding:10px 12px;border-radius:8px;background:var(--panel2);border-left:4px solid var(--edge)}
.fb.ok{border-left-color:var(--emerald)}
.fb.no{border-left-color:var(--red)}
.fb strong{display:block}
.result{border:2px solid var(--edge);border-radius:12px;padding:14px;margin-top:8px}
.result.pass{border-color:var(--emerald)}
.result.fail{border-color:var(--amber)}
.result h3{margin-top:0}

/* ranks */
.ladder{list-style:none;padding:0;margin:0 0 16px;display:grid;gap:8px;grid-template-columns:1fr}
.ladder li{margin:0;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--panel2)}
.ladder li.cur{border-color:var(--emerald);background:rgba(23,99,79,.1)}
.ladder li.got{border-color:var(--edge)}
.ladder strong{color:var(--white)}
.reqs{list-style:none;padding:0}
.reqs li{display:flex;gap:8px;align-items:flex-start}
.reqs .m{font-family:var(--mono);font-weight:700;flex:none;width:5.6em}
.reqs .met .m{color:var(--emerald)}
.reqs .open .m{color:var(--amber)}
table.t{width:100%;border-collapse:collapse;font-size:.9rem}
table.t th,table.t td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
table.t th{color:var(--muted);font-weight:600;font-size:.8rem}
.tscroll{overflow-x:auto}

/* rank card */
.rankcard{border:2px solid #86bca2;border-radius:20px;padding:20px;background:radial-gradient(circle at top right,#ffe9f0,transparent 40%),radial-gradient(circle at bottom left,#e7f7e9,transparent 48%),var(--panel)}
.rankcard h2{margin:0 0 4px;font-size:1.4rem}
.rankcard .rk{font-size:1.9rem;font-weight:800;color:var(--emerald);margin:6px 0}
.rankcard dl{display:grid;grid-template-columns:1fr;gap:8px;margin:12px 0}
.rankcard dt{font-size:.78rem;color:var(--muted)}
.rankcard dd{margin:0;color:var(--white)}
.hash{font-family:var(--mono);font-size:.78rem;word-break:break-all;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:8px;color:var(--cyan)}
.disc{font-size:.85rem;border-top:1px solid var(--line);padding-top:12px;margin-top:12px;color:var(--text)}

/* advisor */
.opts-grid{display:grid;gap:8px;grid-template-columns:1fr}
.choice{display:flex;gap:10px;align-items:center;min-height:44px;padding:8px 12px;border:1px solid var(--edge);border-radius:10px;background:var(--panel2);cursor:pointer}
.choice:hover{border-color:var(--cyan)}
.choice.sel{border-color:var(--emerald);background:rgba(23,99,79,.09)}
.path-list{padding-left:0;list-style:none;counter-reset:p}
.path-list li{counter-increment:p;border:1px solid var(--line);border-radius:10px;padding:10px 12px 10px 48px;position:relative;background:var(--panel2)}
.path-list li::before{content:counter(p);position:absolute;left:12px;top:10px;width:26px;height:26px;border-radius:50%;border:1px solid var(--cyan);color:var(--cyan);display:grid;place-items:center;font-family:var(--mono);font-size:.8rem}
.path-list a{font-weight:600}
.path-list .why{display:block;font-size:.85rem;color:var(--muted)}
.badge-rules{display:inline-block;border:1px solid var(--amber);color:var(--amber);border-radius:6px;padding:2px 8px;font-size:.78rem;font-family:var(--mono)}

/* lab */
.simbanner{border:1px solid var(--amber);border-left-width:6px;border-radius:10px;padding:10px 14px;background:rgba(133,82,14,.07);margin-bottom:14px;font-size:.92rem}
.tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.tab{min-height:44px;padding:6px 12px;border-radius:10px;border:1px solid var(--edge);background:var(--panel2);color:var(--text);font:inherit;font-size:.85rem;cursor:pointer;font-family:var(--mono)}
.tab[aria-selected="true"]{background:var(--emerald);color:var(--on-accent);border-color:var(--emerald);font-weight:700}
.tab .dn{margin-left:4px}
.lab{display:grid;gap:14px;grid-template-columns:1fr}
.ws,.wire-pane{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;min-width:0}
.wire{margin:0;min-height:220px;max-height:480px;overflow:auto;white-space:pre-wrap;font-family:var(--mono);font-size:.82rem;line-height:1.5;background:#f2faf5;border:1px solid #a9cfb9;border-radius:10px;padding:10px;color:#184d43}
.wirecap{font-family:var(--mono);font-size:.75rem;color:var(--muted);margin:6px 0 0}
.term{display:flex;gap:6px;align-items:center}
.term .pr{font-family:var(--mono);color:var(--emerald);font-weight:700}
.term input{font-family:var(--mono);color:#184d43;flex:1;min-width:0;width:auto}
.term button{flex:none;white-space:nowrap}
.syllabus-week{margin:18px 0}
.syllabus-pair{display:grid;gap:20px;grid-template-columns:1fr}
.syllabus-days{padding-left:1.6rem;line-height:1.65}
.syllabus-days li{padding:3px 0}
@media(min-width:760px){.syllabus-pair{grid-template-columns:1fr 1fr}}
.msg{border:1px solid var(--edge);border-radius:8px;padding:8px 10px;font-size:.88rem;margin:8px 0;background:var(--panel2)}
.msg.ok{border-color:var(--emerald)}
.msg.warn{border-color:var(--amber)}
.msg.bad{border-color:var(--red)}
.cards5{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin:10px 0}
.pc{border:1px solid var(--edge);border-radius:8px;padding:8px 2px;text-align:center;font-family:var(--mono);font-size:.7rem;background:var(--panel2)}
.pc.on{border-color:var(--emerald);color:var(--emerald);background:rgba(23,99,79,.08)}
.rack{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:10px 0}
.room{min-height:56px;border:1px solid var(--edge);border-radius:8px;background:var(--panel2);color:var(--text);font:inherit;font-family:var(--mono);cursor:pointer;padding:4px 2px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:.72rem}
.room b{font-size:.85rem}
.room.Dirty{border-color:var(--amber);color:var(--amber)}
.room.Clean{border-color:var(--cyan);color:var(--cyan)}
.room.Inspected{border-color:var(--emerald);color:var(--emerald)}
.room.Occupied{border-color:#71418f;color:#71418f}
.room.OOO{border-color:var(--red);color:var(--red);border-style:dashed}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:10px 0}
.kpi{border:1px solid var(--line);border-radius:8px;padding:8px;text-align:center;background:var(--panel2)}
.kpi small{display:block;color:var(--muted);font-family:var(--mono);font-size:.68rem}
.kpi b{font-family:var(--mono);font-size:1.05rem;color:var(--white)}
.env{position:relative;height:44px;border-radius:8px;background:#f4e8e9;overflow:hidden;border:1px solid var(--edge)}
.env .safe{position:absolute;top:0;bottom:0;left:30%;width:40%;background:rgba(23,99,79,.2);border-left:2px solid var(--emerald);border-right:2px solid var(--emerald)}
.env .mk{position:absolute;top:0;bottom:0;width:4px;background:var(--cyan);left:50%}
.steps{display:grid;grid-template-columns:1fr;gap:6px}
.step{min-height:44px;text-align:left;font-family:var(--mono);font-size:.82rem;padding:8px 12px;border-radius:8px;border:1px solid var(--edge);background:var(--panel2);color:var(--text);cursor:pointer}
.step.done{border-color:var(--emerald);color:var(--emerald)}
.step.next{border-color:var(--cyan);color:var(--cyan);font-weight:700}
.step[disabled]{opacity:.5;cursor:not-allowed}
.layers{display:grid;gap:10px;grid-template-columns:1fr}
.layer h3{font-family:var(--mono);font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px}
.node{display:block;width:100%;min-height:44px;text-align:left;margin-bottom:6px;padding:8px 12px;border-radius:10px;border:1px solid var(--edge);background:var(--panel2);color:var(--text);font:inherit;font-family:var(--mono);font-size:.82rem;cursor:pointer}
.node[aria-pressed="true"]{border-color:var(--cyan);color:var(--cyan);font-weight:700}
.node.c-emerald{border-left:5px solid var(--emerald)}
.node.c-cyan{border-left:5px solid var(--cyan)}
.node.c-amber{border-left:5px solid var(--amber)}
.node.c-red{border-left:5px solid var(--red)}
.pick{display:flex;gap:10px;align-items:flex-start;min-height:44px;padding:8px 12px;border:1px solid var(--edge);border-radius:10px;margin-bottom:6px;background:var(--panel2);cursor:pointer;font-size:.88rem}
button.pick{width:100%;text-align:left;font:inherit;font-size:.88rem;color:var(--text)}
.pick.sel{border-color:var(--emerald);background:rgba(23,99,79,.09)}
.pick.good{border-color:var(--emerald)}
.pick.bad{border-color:var(--red)}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--panel);padding:20px 0 28px;font-size:.88rem;color:var(--muted)}
.foot{display:grid;gap:16px;grid-template-columns:1fr}
.foot p{margin:0 0 8px}
.foot-links{display:flex;flex-wrap:wrap;gap:4px 16px}
.foot-links a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px}
.foot-support{display:flex;gap:12px;align-items:center}
.qr{width:96px;height:96px;flex:none;border-radius:10px}
.qr-ph{border:2px dashed var(--edge);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;font-family:var(--mono);font-size:.7rem;color:var(--muted);gap:2px}
.qr-ph span:first-child{font-size:1.6rem;line-height:1}
.banner{border:1px solid var(--amber);background:rgba(133,82,14,.08);border-radius:10px;padding:10px 14px;margin-bottom:14px}
dialog{background:var(--panel);color:var(--text);border:1px solid var(--edge);border-radius:12px;padding:20px;max-width:min(92vw,440px)}
dialog::backdrop{background:rgba(0,0,0,.7)}

@media (min-width:640px){
  .g2{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .filters{grid-template-columns:2fr 1fr 1fr 1fr}
  .lesson-list{grid-template-columns:repeat(2,1fr)}
  .opts-grid{grid-template-columns:repeat(2,1fr)}
  .rack{grid-template-columns:repeat(6,1fr)}
  .rankcard dl{grid-template-columns:repeat(2,1fr)}
  .ladder{grid-template-columns:repeat(5,1fr)}
  .layers{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:900px){
  .hero3d{grid-template-columns:minmax(0,1.1fr) minmax(350px,.9fr);gap:32px}
  .g3{grid-template-columns:repeat(3,1fr)}
  .lesson-list{grid-template-columns:repeat(3,1fr)}
  .lab{grid-template-columns:1fr 1fr}
  .foot{grid-template-columns:2fr 1fr}
  .layers{grid-template-columns:repeat(4,1fr)}
  .rack{grid-template-columns:repeat(6,1fr)}
}
@media (max-width:420px){
  h1{font-size:1.4rem}
  .hero h1{font-size:1.55rem}
  .cards5{gap:4px}
  .pc{font-size:.62rem}
  .flight-stage{min-height:270px;height:270px;min-width:0;width:100%;aspect-ratio:auto}
  .stage-assembly{transform:scale(.86);animation:stage-turn-small 18s ease-in-out infinite alternate}
  @keyframes stage-turn-small{from{transform:scale(.86) rotateX(-10deg) rotateY(-16deg) rotateZ(-3deg)}to{transform:scale(.86) rotateX(12deg) rotateY(30deg) rotateZ(6deg)}}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* print: the Rank Card only, on white */
@media print{
  body{background:#fff;color:#000}
  .site-header,.site-footer,.skip,.noprint,#live,.nav{display:none!important}
  main{padding:0}
  .wrap{max-width:none;padding:0}
  .print-hide{display:none!important}
  .rankcard{border:2px solid #000;background:#fff;color:#000;border-radius:0;break-inside:avoid;padding:16px}
  .rankcard h2,.rankcard dd,.rankcard .rk{color:#000}
  .rankcard *{color:#000!important}
  .rankcard dt,.disc{color:#000}
  .hash{background:#fff;border-color:#000;color:#000}
  a{color:#000;text-decoration:none}
}