:root{
  --bg:#f6f7fb; --card:#fff; --ink:#18203a; --mute:#66708a; --line:#e3e7f0;
  --blue:#2346b0; --blue2:#3b63d9; --blue-soft:#e8eeff;
  --red:#e5483c; --red-soft:#fdeceb;
  --green:#14a06a; --green-soft:#e3f6ee;
  --gold:#f2b630; --gold-soft:#fff5dc;
  --purple:#7b4ce0; --purple-soft:#f0eaff;
  --teal:#0e9aa7; --teal-soft:#e0f5f7;
  --r:18px; --shadow:0 2px 0 rgba(24,32,58,.06),0 8px 24px rgba(24,32,58,.06);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:Nunito,system-ui,sans-serif;font-size:16px;line-height:1.5}
h1,h2,h3{font-family:Fraunces,Georgia,serif;margin:0 0 .4em;line-height:1.15;letter-spacing:-.01em}
h1{font-size:1.9rem}h2{font-size:1.4rem}h3{font-size:1.1rem}
a{color:var(--blue)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
.wrap{max-width:860px;margin:0 auto;padding:16px 16px 110px}
.muted{color:var(--mute)} .small{font-size:.86rem} .center{text-align:center}
.row{display:flex;gap:10px;align-items:center} .wrapflex{flex-wrap:wrap} .grow{flex:1}
.grid{display:grid;gap:12px} .g2{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))} .g3{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:18px;border:1px solid var(--line)}
.card.tap{cursor:pointer;transition:transform .12s, box-shadow .12s}
.card.tap:hover{transform:translateY(-2px)}
.card.tap:active{transform:translateY(1px)}
.pill{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:99px;font-weight:800;font-size:.78rem;background:var(--blue-soft);color:var(--blue)}
.pill.red{background:var(--red-soft);color:var(--red)} .pill.green{background:var(--green-soft);color:var(--green)}
.pill.gold{background:var(--gold-soft);color:#a77300} .pill.purple{background:var(--purple-soft);color:var(--purple)} .pill.teal{background:var(--teal-soft);color:var(--teal)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:14px;font-weight:900;letter-spacing:.02em;background:var(--blue);color:#fff;box-shadow:0 4px 0 #142c78;transition:transform .08s, box-shadow .08s;text-transform:uppercase;font-size:.92rem}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 #142c78}
.btn.green{background:var(--green);box-shadow:0 4px 0 #0b6e48} .btn.red{background:var(--red);box-shadow:0 4px 0 #a32b21}
.btn.gold{background:var(--gold);color:#3b2a00;box-shadow:0 4px 0 #b88410}
.btn.ghost{background:#fff;color:var(--ink);border:2px solid var(--line);box-shadow:0 4px 0 var(--line)}
.btn.block{width:100%} .btn:disabled{opacity:.45;pointer-events:none}
.btn.sm{padding:8px 14px;font-size:.8rem;border-radius:11px}

/* top bar */
.top{position:sticky;top:0;z-index:20;background:rgba(246,247,251,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .in{max-width:860px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:14px}
.logo{font-family:Fraunces,serif;font-weight:800;font-size:1.25rem;color:var(--blue);display:flex;align-items:center;gap:8px}
.logo img{width:30px;height:30px}
.stat{display:flex;align-items:center;gap:4px;font-weight:900}
.stat.fire{color:#f06a18} .stat.xp{color:#c58b00} .stat.lvl{color:var(--purple)}

/* bottom nav */
.nav{position:fixed;bottom:0;left:0;right:0;z-index:30;background:#fff;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
.nav .in{max-width:860px;margin:0 auto;display:flex}
.nav a{flex:1;text-align:center;padding:9px 2px 8px;text-decoration:none;color:var(--mute);font-weight:800;font-size:.72rem}
.nav a .ic{display:block;font-size:1.45rem;line-height:1.2;filter:grayscale(1);opacity:.7}
.nav a.on{color:var(--blue)} .nav a.on .ic{filter:none;opacity:1}

/* hero */
.hero{background:linear-gradient(135deg,#2346b0,#3b63d9 60%,#5b7cf0);color:#fff;border-radius:22px;padding:22px;position:relative;overflow:hidden}
.hero h1{color:#fff}
.hero:after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,.08)}
.bar{height:12px;background:rgba(24,32,58,.08);border-radius:99px;overflow:hidden}
.bar>i{display:block;height:100%;background:var(--gold);border-radius:99px;transition:width .6s}
.hero .bar{background:rgba(255,255,255,.25)}
.bar.green>i{background:var(--green)} .bar.blue>i{background:var(--blue2)}

/* path map */
.unitHead{margin:26px 0 10px;display:flex;align-items:center;gap:12px}
.unitHead .ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:1.5rem}
.path{display:flex;flex-direction:column;align-items:center;gap:6px;padding:8px 0}
.node{position:relative;width:76px;height:72px;border-radius:50%;display:grid;place-items:center;font-size:1.8rem;background:var(--blue);color:#fff;box-shadow:0 6px 0 #142c78;transition:transform .1s}
.node:active{transform:translateY(4px);box-shadow:0 2px 0 #142c78}
.node.locked{background:#d9deea;box-shadow:0 6px 0 #b9c0d2;color:#8b93a8}
.node.done{background:var(--gold);box-shadow:0 6px 0 #b88410}
.node.cur{animation:bob 1.6s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-5px)}}
.nodeWrap{display:flex;flex-direction:column;align-items:center;gap:4px;width:200px}
.nodeLbl{font-weight:800;font-size:.82rem;text-align:center;line-height:1.2}
.stars{font-size:.85rem;letter-spacing:1px;color:var(--gold)} .stars .off{color:#d4d9e5}

/* quiz */
.qtop{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.qtop .bar{flex:1;height:16px}
.qtop .bar>i{background:var(--green)}
.x{font-size:1.5rem;color:var(--mute);padding:4px 8px}
.qcard{background:#fff;border-radius:22px;padding:22px;border:1px solid var(--line);box-shadow:var(--shadow)}
.qtext{font-size:1.22rem;font-weight:800;margin:6px 0 18px;line-height:1.4}
.choices{display:grid;gap:10px}
.choice{text-align:left;padding:14px 16px;border-radius:14px;border:2px solid var(--line);background:#fff;font-weight:700;box-shadow:0 3px 0 var(--line);display:flex;gap:12px;align-items:center;font-size:1.02rem}
.choice .k{width:28px;height:28px;flex:none;border-radius:8px;border:2px solid var(--line);display:grid;place-items:center;font-size:.8rem;color:var(--mute)}
.choice:hover{border-color:#c6cee3}
.choice.sel{border-color:var(--blue2);background:var(--blue-soft);box-shadow:0 3px 0 var(--blue2)}
.choice.ok{border-color:var(--green);background:var(--green-soft);box-shadow:0 3px 0 var(--green)}
.choice.ko{border-color:var(--red);background:var(--red-soft);box-shadow:0 3px 0 var(--red)}
.feedback{position:fixed;left:0;right:0;bottom:0;z-index:40;padding:16px 16px calc(16px + env(safe-area-inset-bottom));animation:up .2s}
.feedback .in{max-width:860px;margin:0 auto}
.feedback.ok{background:#d7f5e6;color:#0b6e48} .feedback.ko{background:#fde0dd;color:#a32b21}
.feedback h3{font-family:Nunito;font-weight:900;font-size:1.25rem}
@keyframes up{from{transform:translateY(100%)}}
.passage{background:#fbfcff;border:1px solid var(--line);border-radius:14px;padding:16px;white-space:pre-wrap;max-height:42vh;overflow:auto;font-size:1rem;line-height:1.6;margin-bottom:14px}
.combo{font-weight:900;color:#f06a18;animation:pop .3s}
@keyframes pop{0%{transform:scale(.5)}70%{transform:scale(1.2)}}
.inputAns{width:100%;padding:14px 16px;border-radius:14px;border:2px solid var(--line);font-size:1.1rem;font-weight:700;outline:none}
.inputAns:focus{border-color:var(--blue2)}
.audioBtn{width:84px;height:84px;border-radius:24px;background:var(--blue);color:#fff;font-size:2.2rem;box-shadow:0 5px 0 #142c78;display:grid;place-items:center}
.audioBtn.slow{width:60px;height:60px;font-size:1.4rem;background:var(--blue-soft);color:var(--blue);box-shadow:0 4px 0 #c5d2fb}
.audioBtn:active{transform:translateY(3px)}

/* results */
.big{font-size:3.2rem;font-weight:900;font-family:Fraunces,serif;line-height:1}
.chest{font-size:4.5rem;animation:pop .5s}
.kpi{background:#fff;border:2px solid var(--line);border-radius:16px;padding:12px;text-align:center;flex:1}
.kpi b{display:block;font-size:1.4rem}
.kpi.gold{border-color:var(--gold);color:#a77300} .kpi.green{border-color:var(--green);color:var(--green)} .kpi.blue{border-color:var(--blue2);color:var(--blue)}

/* misc */
.tabs{display:flex;gap:8px;overflow:auto;padding-bottom:4px;margin-bottom:12px}
.tab{padding:8px 14px;border-radius:99px;border:2px solid var(--line);font-weight:800;white-space:nowrap;background:#fff;font-size:.86rem}
.tab.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.badge{text-align:center;padding:14px 8px;border-radius:16px;background:#fff;border:2px solid var(--line)}
.badge .e{font-size:2.2rem;display:block}
.badge.off{opacity:.38;filter:grayscale(1)}
.badge b{display:block;font-size:.85rem;line-height:1.2;margin-top:4px}
textarea.write{width:100%;min-height:280px;border-radius:14px;border:2px solid var(--line);padding:14px;font-size:1.02rem;line-height:1.6;resize:vertical;outline:none}
textarea.write:focus{border-color:var(--blue2)}
details{border:1px solid var(--line);border-radius:14px;padding:12px 14px;background:#fff;margin-top:10px}
details summary{cursor:pointer;font-weight:800}
.model{white-space:pre-wrap;line-height:1.65;background:#fbfcff;border-radius:12px;padding:12px;margin-top:8px}
ul.tight{margin:.3em 0;padding-left:1.2em} ul.tight li{margin:.15em 0}
.err{border-left:4px solid var(--red);background:var(--red-soft);border-radius:10px;padding:8px 12px;margin:6px 0}
.err s{color:var(--red)} .err b{color:var(--green)}
.timer{font-variant-numeric:tabular-nums;font-weight:900;font-size:1.1rem;padding:6px 12px;border-radius:12px;background:var(--blue-soft);color:var(--blue)}
.timer.warn{background:var(--red-soft);color:var(--red)}
.login{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at 20% 10%,#dfe7ff,transparent 50%),radial-gradient(circle at 90% 90%,#ffe8e5,transparent 45%),var(--bg)}
.login .card{max-width:420px;width:100%;padding:28px}
.field{width:100%;padding:14px;border-radius:14px;border:2px solid var(--line);font-size:1.05rem;font-weight:700;margin:6px 0 12px;outline:none;background:#fff}
.field:focus{border-color:var(--blue2)}
#toast{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:100;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
#toast div{background:var(--ink);color:#fff;padding:10px 18px;border-radius:14px;font-weight:800;box-shadow:var(--shadow);animation:pop .3s}
#confetti{position:fixed;inset:0;pointer-events:none;z-index:99;width:100%;height:100%}
.flag{display:inline-block;width:22px;height:15px;border-radius:3px;background:linear-gradient(90deg,#2346b0 33%,#fff 33% 66%,#e5483c 66%);vertical-align:-2px;box-shadow:0 0 0 1px var(--line)}
.sectionTitle{display:flex;justify-content:space-between;align-items:end;margin:24px 0 10px}
.mod-ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:1.6rem;flex:none}
.heat{display:grid;grid-template-columns:repeat(14,1fr);gap:4px}
.heat i{aspect-ratio:1;border-radius:4px;background:#e9edf5}
.heat i.l1{background:#ffe3a3}.heat i.l2{background:#f9c34a}.heat i.l3{background:#e59a00}
table.t{width:100%;border-collapse:collapse;font-size:.92rem} table.t td,table.t th{padding:8px 6px;border-bottom:1px solid var(--line);text-align:left}
.mic{width:96px;height:96px;border-radius:50%;background:var(--red);color:#fff;font-size:2.4rem;box-shadow:0 5px 0 #a32b21}
.mic.on{animation:pulse 1.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(229,72,60,.5)}100%{box-shadow:0 0 0 22px rgba(229,72,60,0)}}
.flash{white-space:pre-wrap;font-size:1.1rem;font-weight:800;min-height:120px;display:grid;place-items:center;text-align:center}
@media (max-width:520px){h1{font-size:1.55rem}.qtext{font-size:1.1rem}.hide-sm{display:none}}