:root{
  --bg:#F7F5EE;--surface:#FFFFFF;--surface-2:#FBFAF4;--ink:#1D2A21;--muted:#5C6A60;
  --brand:#1F4D2B;--brand-2:#2E6B3E;--on-brand:#F7F5EE;--accent:#B98A2E;--accent-soft:#F3E7C8;
  --line:#E2DFD2;--soft:#E7EFE4;--soft-2:#D5E4D2;--ok:#2E7D32;--ok-soft:#E3F1E1;--bad:#B3261E;--bad-soft:#FBE4E1;
  --shadow:0 1px 2px rgba(20,40,25,.06),0 6px 18px rgba(20,40,25,.07);
  --radius:14px;--serif:Georgia,"Iowan Old Style","Palatino Linotype",Palatino,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#0E1611;--surface:#15201A;--surface-2:#192620;--ink:#ECE8DA;--muted:#A2B3A6;
  --brand:#8FD19E;--brand-2:#B5E3BF;--on-brand:#0E1611;--accent:#E0C170;--accent-soft:#3A3320;
  --line:#26362C;--soft:#1B2A21;--soft-2:#23372A;--ok:#86D993;--ok-soft:#18301E;--bad:#FF8F85;--bad-soft:#3A1D1A;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 22px rgba(0,0,0,.35);color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;min-height:100vh;transition:background .3s,color .3s}
h1,h2,h3,h4{font-family:var(--serif);line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(1.6rem,4vw,2.3rem)}h2{font-size:clamp(1.3rem,3vw,1.7rem)}h3{font-size:1.15rem}
p{margin:0 0 .8em}
button{font:inherit;color:inherit;cursor:pointer}
input,select{font:inherit;color:var(--ink)}
.hidden{display:none!important}
a{color:var(--brand)}
b,strong{color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* ---------- Lock ---------- */
#lock{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;padding:16px;background:
 radial-gradient(1200px 600px at 10% -10%,var(--soft-2),transparent 60%),radial-gradient(900px 500px at 110% 110%,var(--accent-soft),transparent 60%),var(--bg);z-index:50}
.lock-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:32px 26px;box-shadow:var(--shadow);text-align:center}
.lock-card .emblem{width:74px;height:74px;margin:0 auto 14px}
.lock-card h1{font-size:1.6rem;margin-bottom:.2em}
.lock-card p.sub{color:var(--muted);font-size:.95rem;margin-bottom:22px}
.keyrow{display:flex;gap:8px;position:relative}
.keyrow input{flex:1;padding:13px 44px 13px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface-2);font-size:1rem;letter-spacing:.05em}
.keyrow input:focus{border-color:var(--brand);outline:none}
.eye{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:0;padding:6px;color:var(--muted)}
.lock-msg{min-height:1.4em;font-size:.9rem;margin-top:10px;color:var(--bad)}
.shake{animation:shake .45s}
@keyframes shake{20%,60%{transform:translateX(-8px)}40%,80%{transform:translateX(8px)}}

/* ---------- Splash / Loader ---------- */
#splash{position:fixed;inset:0;background:var(--brand);color:var(--on-brand);display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:60;text-align:center;padding:20px}
:root[data-theme="dark"] #splash{background:#0B120E;color:var(--ink)}
#splash .logo{width:130px;height:130px;margin-bottom:18px}
#splash h1{font-size:clamp(1.8rem,6vw,2.6rem);margin:0;color:inherit}
#splash .by{opacity:.85;margin-top:6px;font-size:1rem;letter-spacing:.04em}
#splash .bar{width:min(260px,70vw);height:6px;border-radius:6px;background:rgba(255,255,255,.18);margin-top:28px;overflow:hidden}
#splash .bar i{display:block;height:100%;width:0;background:var(--accent);border-radius:6px;transition:width .25s}
#splash .status{margin-top:10px;font-size:.85rem;opacity:.8;min-height:1.2em}
.fadeout{animation:fadeout .5s forwards}@keyframes fadeout{to{opacity:0;visibility:hidden}}
.orbit{transform-origin:65px 65px;animation:spin 3.2s linear infinite}
.orbit.o2{animation-duration:4.6s;animation-direction:reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.leafdraw{stroke-dasharray:400;stroke-dashoffset:400;animation:draw 1.6s ease forwards}
@keyframes draw{to{stroke-dashoffset:0}}

#loader{position:fixed;inset:0;background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:40;opacity:0;pointer-events:none;transition:opacity .2s}
#loader.on{opacity:1;pointer-events:all}
.ldr{display:flex;flex-direction:column;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--line);padding:26px 34px;border-radius:18px;box-shadow:var(--shadow)}
.ldr svg{width:72px;height:72px}
.ldr .msg{font-size:.95rem;color:var(--muted)}
.dots::after{content:"";animation:dots 1.2s steps(4) infinite}
@keyframes dots{0%{content:""}25%{content:"."}50%{content:".."}75%{content:"..."}}
.pulse{animation:pulse 1.2s ease-in-out infinite;transform-origin:36px 36px}
@keyframes pulse{50%{transform:scale(.82)}}

/* ---------- Layout ---------- */
header.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topin{max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:10px 16px}
.brand{display:flex;align-items:center;gap:10px;text-align:left;font-family:var(--serif);font-weight:700;font-size:1.1rem;background:none;border:0;padding:0;color:var(--ink)}
.brand svg{width:34px;height:34px}
.brand small{display:block;font-family:var(--sans);font-weight:500;font-size:.7rem;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
nav.tabs{display:flex;gap:4px;margin-left:auto}
nav.tabs button{border:0;background:none;padding:8px 13px;border-radius:10px;font-weight:600;color:var(--muted);font-size:.95rem}
nav.tabs button.on{background:var(--soft);color:var(--brand)}
nav.tabs button:hover{color:var(--brand)}
.iconbtn{border:1px solid var(--line);background:var(--surface);width:40px;height:40px;border-radius:11px;display:grid;place-items:center;color:var(--ink);flex:none}
.iconbtn svg{width:20px;height:20px}
main{max-width:1120px;margin:0 auto;padding:22px 16px 90px}
.bottomnav{display:none}
@media (max-width:760px){
  nav.tabs{display:none}
  .bottomnav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:25;background:var(--surface);border-top:1px solid var(--line);padding:6px 6px calc(6px + env(safe-area-inset-bottom))}
  .bottomnav button{flex:1;border:0;background:none;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0;font-size:.72rem;font-weight:600;color:var(--muted);border-radius:10px}
  .bottomnav button svg{width:22px;height:22px}
  .bottomnav button.on{color:var(--brand);background:var(--soft)}
  .topin .spacer{margin-left:auto}
  .brand small{display:none}
  .sectiontitle{flex-wrap:wrap}
}
footer.credit{text-align:center;color:var(--muted);font-size:.8rem;padding:20px 0 0}

/* ---------- Components ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(auto-fit,minmax(min(100%,400px),1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1.5px solid transparent;background:var(--brand);color:var(--on-brand);padding:11px 18px;border-radius:12px;font-weight:700;font-size:.95rem;transition:transform .08s,filter .15s;text-decoration:none}
.btn:hover{filter:brightness(1.08)}.btn:active{transform:scale(.98)}
.btn.ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn.soft{background:var(--soft);color:var(--brand)}
.btn.gold{background:var(--accent);color:#1D1A10}
.btn.sm{padding:7px 12px;font-size:.85rem;border-radius:10px}
.btn[disabled]{opacity:.45;pointer-events:none}
.btn svg{width:18px;height:18px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.between{justify-content:space-between}
.muted{color:var(--muted)}
.small{font-size:.87rem}
.tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--brand);background:var(--soft);padding:3px 9px;border-radius:999px}
.tag.gold{color:#6B4E12;background:var(--accent-soft)}
:root[data-theme="dark"] .tag.gold{color:var(--accent)}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;padding:4px 10px;border-radius:999px;border:1px solid var(--line);background:var(--surface-2)}
.bar{height:8px;background:var(--soft);border-radius:8px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--brand);border-radius:8px;transition:width .5s}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:8px;display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.crumbs button{border:0;background:none;color:var(--brand);padding:0;font-weight:600}
.sectiontitle{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:26px 0 12px}
.sectiontitle h2{margin:0}

/* hero */
.hero{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:var(--on-brand);border-radius:20px;padding:26px;position:relative;overflow:hidden}
:root[data-theme="dark"] .hero{background:linear-gradient(135deg,#1D3A26,#15291C);color:var(--ink)}
.hero h1{color:inherit;margin-bottom:.25em}
.hero p{opacity:.9;max-width:560px}
.hero .deco{position:absolute;right:-30px;top:-30px;width:220px;height:220px;opacity:.14}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:16px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px}
.stat .v{font-family:var(--serif);font-size:1.7rem;font-weight:700;color:var(--brand)}
.stat .l{font-size:.8rem;color:var(--muted)}

.unit{margin-top:22px}
.unit h3{display:flex;align-items:center;gap:10px}
.chcard{text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:15px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow);transition:transform .12s,border-color .12s;width:100%}
.chcard:hover{transform:translateY(-2px);border-color:var(--brand)}
.chcard .num{font-family:var(--serif);font-size:.85rem;color:var(--accent);font-weight:700}
.chcard .t{font-family:var(--serif);font-weight:700;font-size:1.08rem;line-height:1.25}
.chcard .m{font-size:.8rem;color:var(--muted)}

.lessonrow{display:flex;align-items:center;gap:12px;border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:12px 14px;width:100%;text-align:left}
.lessonrow:hover{border-color:var(--brand)}
.lessonrow .chk{width:26px;height:26px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;flex:none;font-size:.8rem}
.lessonrow .chk.done{background:var(--brand);border-color:var(--brand);color:var(--on-brand)}
.lessonrow .info{flex:1;min-width:0}
.lessonrow .info b{display:block;font-weight:650}
.lessonrow .mini{width:70px;flex:none}
.lessonrow .mini .small{text-align:right}
.probes{border:1.5px dashed var(--accent);background:var(--accent-soft)}
:root[data-theme="dark"] .probes{background:#221F14}

/* lesson */
.lessonhead{border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:18px}
.objectives{background:var(--soft);border-radius:14px;padding:14px 18px;margin-bottom:18px}
.objectives ul{margin:.3em 0 0;padding-left:1.2em}
.kcard h3{display:flex;gap:10px;align-items:center}
.kcard h3 .n{width:28px;height:28px;border-radius:9px;background:var(--brand);color:var(--on-brand);display:grid;place-items:center;font-family:var(--sans);font-size:.85rem;flex:none}
.kcard ul,.kcard ol{padding-left:1.2em;margin:.2em 0}
.kcard li{margin:.25em 0}
.tbl{border-collapse:collapse;width:100%;font-size:.9rem;margin-top:6px}
.tbl th,.tbl td{border:1px solid var(--line);padding:6px 8px;text-align:left}
.tbl th{background:var(--soft)}
.widget{margin:22px 0;border:1.5px solid var(--brand);border-radius:16px;padding:18px;background:var(--surface)}
.widget>.wt{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.widget>.wt h3{margin:0}
.widget svg{max-width:min(100%,600px);height:auto;display:block;margin:0 auto}
.flipgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.flip{perspective:800px;height:130px;border:0;background:none;padding:0}
.flip .in{position:relative;width:100%;height:100%;transition:transform .5s;transform-style:preserve-3d}
.flip.on .in{transform:rotateY(180deg)}
.flip .f,.flip .b{position:absolute;inset:0;backface-visibility:hidden;border-radius:12px;display:flex;align-items:center;justify-content:center;padding:12px;text-align:center;border:1px solid var(--line)}
.flip .f{background:var(--surface);font-family:var(--serif);font-weight:700;font-size:1.05rem;color:var(--brand)}
.flip .b{background:var(--brand);color:var(--on-brand);transform:rotateY(180deg);font-size:.88rem}
.example{border-left:4px solid var(--accent);background:var(--surface-2);padding:12px 14px;border-radius:0 12px 12px 0;margin-bottom:10px}
.example .ans{margin-top:8px}
.summary li{margin:.35em 0}
.lessonnav{display:flex;justify-content:space-between;gap:10px;margin-top:26px;flex-wrap:wrap}

/* questions */
.qwrap{max-width:760px;margin:0 auto}
.qhead{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.qcard{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.qtype{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:6px}
.qtext{font-size:1.12rem;font-weight:600;margin-bottom:16px;line-height:1.45}
.opts{display:grid;gap:10px}
.opt{text-align:left;border:1.5px solid var(--line);background:var(--surface-2);border-radius:12px;padding:12px 14px;display:flex;gap:12px;align-items:flex-start;transition:border-color .12s,background .12s}
.opt:hover:not([disabled]){border-color:var(--brand)}
.opt .k{flex:none;width:26px;height:26px;border-radius:8px;background:var(--soft);color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:.85rem}
.opt.right{border-color:var(--ok);background:var(--ok-soft)}
.opt.wrong{border-color:var(--bad);background:var(--bad-soft)}
.opt[disabled]{cursor:default}
.tfrow{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tfrow .opt{justify-content:center;font-weight:700;font-size:1.05rem}
.inrow{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.inrow input{flex:1;min-width:160px;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface-2);font-size:1.05rem}
.inrow input:focus{outline:none;border-color:var(--brand)}
.inrow .unit{font-weight:700;color:var(--muted)}
.inrow input.right{border-color:var(--ok);background:var(--ok-soft)}
.inrow input.wrong{border-color:var(--bad);background:var(--bad-soft)}
.matchrow{display:grid;grid-template-columns:1fr 1fr;gap:8px;align-items:center;padding:8px 0;border-bottom:1px dashed var(--line)}
.matchrow select{width:100%;padding:9px 10px;border-radius:10px;border:1.5px solid var(--line);background:var(--surface-2)}
.matchrow.right select{border-color:var(--ok);background:var(--ok-soft)}
.matchrow.wrong select{border-color:var(--bad);background:var(--bad-soft)}
.matchrow .fix{grid-column:1/-1;font-size:.82rem;color:var(--ok)}
@media (max-width:520px){.matchrow{grid-template-columns:1fr}}
.sortitem{display:flex;flex-direction:column;gap:6px;padding:10px 0;border-bottom:1px dashed var(--line)}
.sortitem .lbl{font-weight:600}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg button{border:1.5px solid var(--line);background:var(--surface-2);border-radius:999px;padding:6px 12px;font-size:.85rem;font-weight:600}
.seg button.on{background:var(--brand);color:var(--on-brand);border-color:var(--brand)}
.sortitem.right .seg button.on{background:var(--ok);border-color:var(--ok)}
.sortitem.wrong .seg button.on{background:var(--bad);border-color:var(--bad);color:#fff}
.sortitem .fix{font-size:.82rem;color:var(--ok)}
.orderlist{display:flex;flex-direction:column;gap:8px}
.orderitem{display:flex;align-items:center;gap:10px;border:1.5px solid var(--line);background:var(--surface-2);border-radius:12px;padding:8px 10px;transition:transform .15s}
.orderitem .pos{width:26px;height:26px;border-radius:8px;background:var(--soft);color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:.85rem;flex:none}
.orderitem .txt{flex:1}
.orderitem .mv{display:flex;gap:4px}
.orderitem .mv button{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center}
.orderitem.right{border-color:var(--ok);background:var(--ok-soft)}
.orderitem.wrong{border-color:var(--bad);background:var(--bad-soft)}
.feedback{margin-top:16px;border-radius:14px;padding:14px 16px;display:flex;gap:12px;align-items:flex-start;animation:pop .25s}
.feedback.ok{background:var(--ok-soft);border:1px solid var(--ok)}
.feedback.no{background:var(--bad-soft);border:1px solid var(--bad)}
.feedback .ic{flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:800}
.feedback.ok .ic{background:var(--ok)}.feedback.no .ic{background:var(--bad)}
:root[data-theme="dark"] .feedback .ic{color:#0E1611}
.feedback b.h{display:block}
@keyframes pop{from{transform:scale(.97);opacity:0}}
.qactions{display:flex;justify-content:flex-end;gap:10px;margin-top:16px;flex-wrap:wrap}

/* challenge */
.hud{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.hud .box{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:8px 12px;display:flex;align-items:center;gap:8px;font-weight:700}
.hearts span{font-size:1.2rem;color:var(--bad);transition:opacity .3s,transform .3s}
.hearts span.gone{opacity:.2;transform:scale(.8)}
.timer{flex:1;min-width:140px;height:10px;background:var(--soft);border-radius:10px;overflow:hidden}
.timer i{display:block;height:100%;background:var(--brand);transition:width .25s linear}
.timer i.low{background:var(--bad)}
.streak{color:var(--accent)}
.choice{border:1.5px solid var(--line);background:var(--surface);border-radius:14px;padding:14px;text-align:left;width:100%}
.choice.on{border-color:var(--brand);background:var(--soft)}
.choice b{display:block;font-family:var(--serif);font-size:1.05rem}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1.5px solid var(--line);background:var(--surface);border-radius:999px;padding:7px 13px;font-size:.87rem;font-weight:600}
.chip.on{background:var(--brand);border-color:var(--brand);color:var(--on-brand)}
.bigscore{font-family:var(--serif);font-size:3.2rem;font-weight:700;color:var(--brand);line-height:1}
.result{text-align:center}
.ring{width:150px;height:150px;margin:0 auto 10px}
.review{margin-top:16px;text-align:left}
.review .it{border-left:4px solid var(--bad);background:var(--surface-2);padding:10px 12px;border-radius:0 10px 10px 0;margin-bottom:8px;font-size:.92rem}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;font-weight:600;opacity:0;transition:.25s;z-index:70;pointer-events:none;font-size:.92rem}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

/* widgets */
.wctl{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:8px 0}
.wctl label{font-size:.88rem;font-weight:600}
.wctl input[type=range]{flex:1;min-width:150px;accent-color:var(--brand)}
.wout{background:var(--soft);border-radius:12px;padding:10px 14px;margin-top:10px;font-size:.95rem}
.wout b{color:var(--brand)}
.seltabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.seltabs button{border:1.5px solid var(--line);background:var(--surface-2);border-radius:10px;padding:7px 12px;font-weight:600;font-size:.87rem}
.seltabs button.on{background:var(--brand);color:var(--on-brand);border-color:var(--brand)}
.svgtxt{font-family:var(--sans);fill:var(--ink)}
.hot{cursor:pointer}
.hot:hover{opacity:.8}
.phbar{height:34px;border-radius:10px;background:linear-gradient(90deg,#d7263d,#f46036,#f3a712,#e8d33f,#a1c349,#3fa34d,#2a9d8f,#277da1,#3d5a80,#5e4b8b,#7b2d8e);position:relative;margin:18px 0 30px}
.phbar .tick{position:absolute;top:100%;font-size:.72rem;color:var(--muted);transform:translateX(-50%)}
.phbar .mk{position:absolute;top:-10px;width:4px;height:54px;background:var(--ink);border-radius:2px;transform:translateX(-50%);transition:left .4s}
.chain{display:flex;flex-wrap:wrap;gap:6px;align-items:center;min-height:46px;border:1.5px dashed var(--line);border-radius:12px;padding:8px}
.chain .arrow{color:var(--muted);font-weight:700}
.layer{cursor:pointer;transition:filter .15s}
.layer:hover{filter:brightness(1.1)}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}
@media print{header.top,.bottomnav,#loader{display:none}}

/* ================= Explorer Hub additions ================= */
.field{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}
.field label{font-weight:650;font-size:.9rem}
.field input,.field select,.field textarea{padding:11px 13px;border-radius:11px;border:1.5px solid var(--line);background:var(--surface-2);font-size:1rem;color:var(--ink);font-family:inherit;width:100%}
.field textarea{min-height:90px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand)}
.field .hint{font-size:.8rem;color:var(--muted)}
.form2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media (max-width:620px){.form2{grid-template-columns:1fr}}
.authwrap{max-width:460px;margin:20px auto}
.errbox{background:var(--bad-soft);border:1px solid var(--bad);color:var(--ink);border-radius:11px;padding:10px 12px;margin-bottom:12px;font-size:.92rem}
.okbox{background:var(--ok-soft);border:1px solid var(--ok);border-radius:11px;padding:10px 12px;margin-bottom:12px;font-size:.92rem}
.status{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:700;padding:3px 10px;border-radius:999px;letter-spacing:.02em}
.st-pending{background:var(--accent-soft);color:#6B4E12}
:root[data-theme="dark"] .st-pending{color:var(--accent)}
.st-approved,.st-unlocked{background:var(--ok-soft);color:var(--ok)}
.st-rejected{background:var(--bad-soft);color:var(--bad)}
.st-free{background:var(--soft);color:var(--brand)}
.appcard{display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.appcard .icon{width:52px;height:52px}
.appcard h3{margin:0;font-size:1.25rem}
.appcard .meta{font-size:.85rem;color:var(--muted)}
.tierlist{list-style:none;padding:0;margin:4px 0 0;font-size:.88rem}
.tierlist li{display:flex;gap:8px;align-items:flex-start;padding:3px 0}
.tierlist li span.d{flex:none;width:9px;height:9px;border-radius:50%;margin-top:7px}
.modal-bg{position:fixed;inset:0;background:rgba(10,20,14,.55);display:flex;align-items:center;justify-content:center;padding:16px;z-index:45;animation:fadein .2s}
@keyframes fadein{from{opacity:0}}
.modal{background:var(--surface);border:1px solid var(--line);border-radius:20px;max-width:560px;width:100%;max-height:calc(100vh - 32px);overflow:auto;padding:24px;box-shadow:0 20px 60px rgba(0,0,0,.35);animation:pop .25s}
.modal h2{margin-top:0}
.paybox{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin:12px 0}
.paybox .pm{border:1.5px solid var(--line);border-radius:14px;padding:12px 14px;background:var(--surface-2)}
.paybox .pm .k{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700}
.paybox .pm .v{font-weight:700;font-size:1.05rem;word-break:break-word}
.paybox .pm .n{font-size:.88rem}
.copy{border:1px solid var(--line);background:var(--surface);border-radius:8px;font-size:.75rem;padding:2px 8px;margin-left:6px;font-weight:700;color:var(--brand)}
.qrimg{max-width:200px;width:100%;border-radius:12px;border:1px solid var(--line);background:#fff;padding:6px;display:block}
.drop{border:2px dashed var(--line);border-radius:14px;padding:18px;text-align:center;cursor:pointer;background:var(--surface-2);transition:border-color .15s}
.drop:hover,.drop.over{border-color:var(--brand)}
.drop img{max-width:100%;max-height:260px;border-radius:10px;display:block;margin:0 auto 8px}
.upbar{height:10px;background:var(--soft);border-radius:10px;overflow:hidden;margin-top:10px}
.upbar i{display:block;height:100%;width:0;background:var(--brand);transition:width .2s}
.lockrow{opacity:.78}
.lockrow .chk{border-style:dashed}
.lockbadge{display:inline-flex;align-items:center;gap:4px;font-size:.72rem;font-weight:800;color:var(--accent);letter-spacing:.04em;text-transform:uppercase}
.lockbadge svg{width:13px;height:13px}
.chcard.locked{opacity:.85;border-style:dashed}
.usermenu{display:flex;align-items:center;gap:6px}
.usermenu .who{font-size:.85rem;font-weight:650;color:var(--muted);max-width:140px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (max-width:760px){.usermenu .who{display:none}}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.dtable{width:100%;border-collapse:collapse;font-size:.88rem}
.dtable th,.dtable td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.dtable th{background:var(--soft);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;position:sticky;top:0}
.dtable tr:last-child td{border-bottom:0}
.paycard{display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:start}
.paycard img{width:120px;height:150px;object-fit:cover;border-radius:10px;border:1px solid var(--line);cursor:zoom-in;background:var(--surface-2)}
@media (max-width:520px){.paycard{grid-template-columns:1fr}.paycard img{width:100%;height:220px}}
.kv{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;font-size:.88rem}
.kv span:nth-child(odd){color:var(--muted)}
.admintabs{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0 16px}
.admintabs button{border:1.5px solid var(--line);background:var(--surface);border-radius:11px;padding:8px 14px;font-weight:700;font-size:.9rem}
.admintabs button.on{background:var(--brand);color:var(--on-brand);border-color:var(--brand)}
.admintabs .count{display:inline-block;min-width:20px;padding:0 6px;border-radius:999px;background:var(--bad);color:#fff;font-size:.72rem;margin-left:6px}
.zoom img{max-width:100%;max-height:80vh;display:block;margin:0 auto;border-radius:12px}
.hub-hero .tierlist li{color:inherit}
.footer-links{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:6px}
@media (max-width:620px){#nav .btn{padding:6px 9px;font-size:.78rem;border-radius:9px}#nav{gap:4px}.topin{gap:6px}.brand span small{display:none}}
@media (max-width:420px){#nav .btn.soft{padding:5px 7px}.brand #siteName{font-size:.95rem}}
@media (max-width:620px){body:not(.appbody) .topin{flex-wrap:wrap}body:not(.appbody) #nav{order:3;width:100%;justify-content:flex-end;padding-bottom:2px}}
.appcard .status{align-self:flex-start}

/* ---- brand: credit footer + intro splash ---- */
footer.credit{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px}
footer.credit .dev{display:inline-flex;align-items:center;gap:5px;color:var(--ink)}
footer.credit .dev svg{width:22px;height:22px}
html.intro-on,html.intro-on body{overflow:hidden}
#intro{position:fixed;inset:0;z-index:90;cursor:pointer;-webkit-tap-highlight-color:transparent;transition:opacity .6s ease}
#intro.out{opacity:0;pointer-events:none}
#intro .sc{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:opacity .55s ease;padding:24px}
#intro .sc .lg svg{width:min(76vw,420px);height:auto;display:block}
#intro .sc-ll{background:radial-gradient(900px 600px at 50% 40%,#16284A 0%,#0B1424 62%);}
#intro .sc-ll .pres{color:#9FB0C8;font-size:.78rem;letter-spacing:.42em;text-transform:uppercase;margin-top:26px;opacity:0;animation:introFade .6s ease 2.45s forwards}
#intro .sc-eh{background:radial-gradient(900px 600px at 50% 40%,#FFFFFF 0%,#F7F5EE 60%);opacity:0}
#intro .sc-eh.dk{background:radial-gradient(900px 600px at 50% 40%,#18261C 0%,#0E1611 62%)}
#intro .sc-eh .lg svg{width:min(80vw,460px)}
#intro.two .sc-eh{opacity:1}#intro.two .sc-ll{opacity:0}
#intro .skip{position:absolute;left:0;right:0;bottom:max(22px,env(safe-area-inset-bottom));text-align:center;font-size:.78rem;letter-spacing:.06em;color:#9FB0C8;opacity:.75;transition:color .5s}
#intro.two .skip{color:#5C6A60}
@keyframes introFade{to{opacity:1}}
@media (prefers-reduced-motion:reduce){#intro .sc-ll .pres{animation-delay:0s}}