:root{--ink:#2a2740;--muted:#7d7488;--paper:#fffaf0;--cream:#f7ecd6;--line:#e6d6b8;--sky:#7cc4f0;--pine:#2f7d4f;--sun:#ffd25e;--coral:#ef6f5e;--teal:#1fb5a8;--good:#5bb35f;--bad:#e2584d;--code:#1f2238;--shadow:0 5px 0 #d9c7a4;--radius:20px}
*{box-sizing:border-box}
html,body{margin:0}
body{color:var(--ink);font-family:'IBM Plex Sans Thai',system-ui,sans-serif;background-color:#f3e7cc;background-image:radial-gradient(#e4d2ac 1.2px,transparent 1.2px);background-size:20px 20px;min-height:100vh}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,.brand{font-family:'Mitr','IBM Plex Sans Thai',sans-serif;font-weight:500}
.hidden{display:none!important}
.muted{color:var(--muted)}
.card{background:var(--paper);border:3px solid var(--ink);border-radius:var(--radius);box-shadow:0 6px 0 var(--ink)}
.notice{font-size:12.5px;color:var(--muted);background:var(--cream);border-radius:12px;padding:10px 12px;line-height:1.6}

/* ปุ่ม */
.btn{border:3px solid var(--ink);background:var(--paper);border-radius:14px;padding:10px 16px;font-weight:700;box-shadow:0 4px 0 var(--ink);transition:transform .1s,box-shadow .1s}
.btn:hover{transform:translateY(-2px);box-shadow:0 6px 0 var(--ink)}
.btn:active{transform:translateY(3px);box-shadow:0 1px 0 var(--ink)}
.btn.primary{background:var(--sun)}
.btn.teal{background:var(--teal);color:#fff}
.btn.coral{background:var(--coral);color:#fff}
.btn.ghost{border-color:var(--line);box-shadow:0 3px 0 var(--line)}
.btn.wide{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:0 4px 0 var(--ink)}
.chip{border:2px solid var(--line);background:var(--paper);border-radius:99px;padding:7px 13px;font-weight:600}
.chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* แบรนด์ */
.brand{display:flex;align-items:center;gap:11px;font-size:24px;line-height:1.1}
.brand small{display:block;font-family:'IBM Plex Sans Thai',sans-serif;font-size:9.5px;letter-spacing:1.6px;color:var(--muted);font-weight:600}
.brandmark{width:46px;height:46px;display:grid;place-items:center;border:3px solid var(--ink);border-radius:14px;background:var(--sky);box-shadow:3px 3px 0 var(--ink);font-size:25px}
.brand.big{font-size:30px}

/* login */
.login{max-width:1100px;margin:auto;padding:32px 22px 40px;display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;min-height:100vh}
.login-hero h1{font-size:clamp(30px,4.4vw,48px);line-height:1.2;margin:22px 0 10px}
.login-hero p{color:#5d566b;font-size:16px;line-height:1.7;margin:0 0 20px;max-width:520px}
.login-postcard{border:3px solid var(--ink);border-radius:22px;overflow:hidden;box-shadow:0 7px 0 var(--ink);aspect-ratio:400/300;background:#9ed6f2;transform:rotate(-1.5deg)}
.login-postcard svg{width:100%;height:100%;display:block}
.login-card{padding:24px}
.login-card h2{margin:4px 0 12px;font-size:22px}
.login-card label{display:block;font-weight:600;font-size:14px;margin:12px 0 6px}
.login-card input,.login-card select{width:100%;padding:12px 14px;border:2px solid var(--line);border-radius:12px;background:#fff}
.login-card form .btn{margin-top:18px}
.avatar-pick{display:flex;flex-wrap:wrap;gap:7px}
.avatar-pick button{width:46px;height:46px;font-size:24px;border:2px solid var(--line);background:#fff;border-radius:13px}
.avatar-pick button.sel{border:3px solid var(--ink);background:var(--sun)}
.profiles{display:grid;gap:8px;margin-bottom:16px}
.profile-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border:2px solid var(--line);border-radius:14px;background:#fff;text-align:left;width:100%}
.profile-row:hover{border-color:var(--ink)}
.profile-row .av{font-size:28px}
.profile-row b{display:block}
.profile-row span{font-size:12.5px;color:var(--muted)}

/* layout หลัก */
#app{max-width:1280px;margin:auto;padding:16px 22px 40px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:10px}
.top-actions{display:flex;gap:8px;align-items:center}
.pill{display:flex;gap:6px;align-items:center;background:var(--paper);border:2px solid var(--line);border-radius:14px;padding:7px 11px;font-weight:600}
.pill.me{font-size:20px;padding:4px 9px}
.lang-chip{display:flex;align-items:center;gap:7px;border:2px solid var(--ink);box-shadow:0 3px 0 var(--ink)}
.lang-badge{display:inline-grid;place-items:center;min-width:34px;height:26px;padding:0 6px;border-radius:8px;color:#fff;font:700 11px 'JetBrains Mono',monospace;border:2px solid var(--ink);text-shadow:0 1px 0 rgba(0,0,0,.35)}
.layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:20px}
.sidebar{background:var(--paper);border:3px solid var(--ink);border-radius:var(--radius);box-shadow:0 6px 0 var(--ink);padding:12px;height:max-content;position:sticky;top:14px}
.nav{display:flex;align-items:center;gap:11px;width:100%;padding:11px 12px;border:0;border-radius:12px;background:transparent;text-align:left;margin:2px 0;font-weight:600;color:var(--muted)}
.nav b{font-size:20px;width:26px;text-align:center}
.nav.active{background:#ffeab0;color:var(--ink);outline:2px solid var(--ink)}
.side-tip{margin-top:12px;padding:12px;background:var(--cream);border-radius:14px;color:#5d566b;font-size:12.5px;line-height:1.65}
.main{min-width:0}
.page{display:none}
.page.active{display:block;animation:pagein .25s ease}
@keyframes pagein{from{opacity:0;transform:translateY(6px)}}
.mobilebar{display:none}
.head{display:flex;justify-content:space-between;align-items:end;gap:12px;margin:4px 0 14px;flex-wrap:wrap}
.head h2{margin:0;font-size:24px}
.head p{margin:3px 0 0;color:var(--muted);font-size:14px}

/* แอตลาส */
.journey{display:flex;gap:16px;align-items:center;padding:16px 18px;margin-bottom:18px;background:linear-gradient(120deg,#bfe6f7,#fff3cf)}
.journey .big-badge{font-size:15px;min-width:64px;height:52px;border-radius:14px}
.journey h3{margin:0;font-size:19px}
.journey p{margin:2px 0 0;font-size:13px;color:#5d566b}
.journey .grow{flex:1;min-width:0}
.bar{height:12px;border:2px solid var(--ink);background:#fff;border-radius:99px;overflow:hidden;margin-top:8px}
.bar i{display:block;height:100%;background:var(--teal);border-radius:99px;transition:width .4s}
.atlas{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.postcard{position:relative;background:var(--paper);border:3px solid var(--ink);border-radius:18px;box-shadow:0 5px 0 var(--ink);overflow:hidden;text-align:left;padding:0;transition:transform .15s}
.postcard:hover{transform:translateY(-3px) rotate(-.6deg)}
.postcard .pic{aspect-ratio:1;border-bottom:3px solid var(--ink);background:#9ed6f2}
.postcard .pic svg{width:100%;height:100%;display:block}
.postcard .info{padding:10px 12px 12px}
.postcard .num{font:600 11px 'JetBrains Mono',monospace;color:var(--muted);letter-spacing:.5px}
.postcard h3{margin:2px 0 1px;font-size:16.5px}
.postcard .topic{font-size:12.5px;color:#5d566b}
.postcard .stars{font-size:12px;color:var(--muted);margin-top:6px;display:flex;justify-content:space-between}
.postcard.locked .pic{filter:grayscale(.55) brightness(.95)}
.postcard .stamp-mini{position:absolute;top:10px;right:10px;background:var(--sun);border:2px solid var(--ink);border-radius:99px;padding:2px 8px;font-size:12px;font-weight:700}

/* หน้าแผนที่ */
.mapwrap{display:grid;grid-template-columns:minmax(0,480px) minmax(0,1fr);gap:20px;align-items:start}
.mapframe{position:relative;border:3px solid var(--ink);border-radius:22px;box-shadow:0 6px 0 var(--ink);overflow:hidden;background:#9ed6f2}
.mapscroll{height:calc(100vh - 150px);min-height:480px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}
.mapscroll svg{width:100%;height:auto;display:block}
.maphead{position:absolute;top:10px;left:10px;right:10px;z-index:2;display:flex;align-items:center;gap:10px;padding:8px 10px;background:rgba(255,250,240,.94);border:2px solid var(--ink);border-radius:14px}
.maphead .flag{font-size:26px}
.maphead h3{margin:0;font-size:16px;line-height:1.2}
.maphead p{margin:0;font-size:12px;color:var(--muted)}
.maphead .back{margin-left:auto;padding:6px 10px;border-radius:10px;box-shadow:0 2px 0 var(--ink);border-width:2px}
.mapinfo .card{padding:18px;margin-bottom:16px}
.mapinfo h3{margin:0 0 6px}
.levelrow{display:flex;align-items:center;gap:12px;padding:10px 12px;border:2px solid var(--line);border-radius:14px;background:#fff;margin-bottom:8px;width:100%;text-align:left}
.levelrow:hover:not(:disabled){border-color:var(--ink)}
.levelrow:disabled{opacity:.55;cursor:not-allowed}
.levelrow .n{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;border:2px solid var(--ink);font-weight:700;background:var(--cream);flex:none}
.levelrow.done .n{background:var(--sun)}
.levelrow.cur .n{background:var(--teal);color:#fff}
.levelrow .t{flex:1;min-width:0}
.levelrow .t b{display:block;font-size:14px}
.levelrow .t span{font-size:12px;color:var(--muted)}
.pips{display:inline-flex;gap:3px;vertical-align:middle}
.pips i{width:8px;height:12px;border-radius:3px;background:#e9dfcc;border:1.5px solid var(--ink)}
.pips i.on{background:var(--coral)}
.scene .node{cursor:pointer}
.scene .node.locked{cursor:not-allowed}
.scene .node:not(.locked):hover>circle:nth-of-type(1),.scene .node:focus>circle{filter:brightness(1.1)}
.scene .node:focus{outline:none}

/* แอนิเมชันในฉาก */
.scene .drift{animation:drift var(--d,4s) ease-in-out infinite alternate}
.scene .bob{animation:bob var(--d,3s) ease-in-out infinite}
.scene .glide{animation:glide 6s ease-in-out infinite}
.scene .flow{animation:flow var(--d,.8s) linear infinite}
.scene .mist{animation:mist var(--d,3s) ease-in-out infinite}
.scene .shimmer{animation:shimmer var(--d,3s) ease-in-out infinite}
.scene .twinkle{animation:shimmer var(--d,2s) ease-in-out infinite}
.scene .glow{animation:glow var(--d,5s) ease-in-out infinite alternate}
.scene .ring{animation:ring 1.6s ease-out infinite;transform-box:fill-box;transform-origin:center}
.scene .hop{animation:hop 1.4s ease-in-out infinite}
@keyframes drift{to{transform:translateX(22px)}}
@keyframes bob{50%{transform:translateY(-3px) rotate(-2deg)}}
@keyframes glide{50%{transform:translate(18px,-10px) rotate(3deg)}}
@keyframes flow{to{stroke-dashoffset:-44}}
@keyframes mist{50%{transform:scale(1.15);opacity:.6}}
@keyframes shimmer{50%{opacity:.15}}
@keyframes glow{to{opacity:.12;transform:translateY(8px)}}
@keyframes ring{from{transform:scale(.9);opacity:1}to{transform:scale(1.35);opacity:0}}
@keyframes hop{50%{transform:translateY(-6px)}}
@media (prefers-reduced-motion:reduce){.scene *{animation:none!important}}

/* ภาษา */
.langgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.langcard{display:flex;gap:12px;align-items:flex-start;text-align:left;padding:13px;background:var(--paper);border:2px solid var(--line);border-radius:16px;transition:transform .12s}
.langcard:hover{transform:translateY(-2px);border-color:var(--ink)}
.langcard.cur{border:3px solid var(--ink);box-shadow:0 4px 0 var(--ink);background:#fff6d8}
.langcard .lang-badge{min-width:48px;height:40px;font-size:12px;border-radius:11px}
.langcard h3{margin:0;font-size:16px}
.langcard p{margin:2px 0 0;font-size:12px;color:var(--muted);line-height:1.5}
.langcard .bar{height:8px;border-width:1.5px;margin-top:7px}
.filters{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:14px}

/* แล็บ */
.labgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin-bottom:22px}
.proj{text-align:left;padding:15px;background:var(--paper);border:2px solid var(--line);border-radius:16px;position:relative}
.proj:hover{border-color:var(--ink)}
.proj .ico{font-size:30px}
.proj h3{margin:6px 0 3px;font-size:16px}
.proj p{margin:0;font-size:12.5px;color:var(--muted);line-height:1.55}
.proj .tag{display:inline-block;margin-top:9px;font-size:11px;font-weight:700;background:var(--cream);border-radius:99px;padding:3px 9px}
.proj .done{position:absolute;top:12px;right:12px;font-size:12px;font-weight:700;color:var(--pine)}
.editor{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px}
.editor textarea{width:100%;min-height:420px;resize:vertical;border:3px solid var(--ink);border-radius:16px;background:var(--code);color:#e8e6f5;font:13px/1.6 'JetBrains Mono',monospace;padding:14px;tab-size:2}
.preview{border:3px solid var(--ink);border-radius:16px;overflow:hidden;background:#fff;display:flex;flex-direction:column;min-height:420px}
.preview iframe{flex:1;border:0;width:100%;min-height:260px;background:#fff}
.console{background:#141625;color:#b9f6c9;font:12.5px/1.6 'JetBrains Mono',monospace;padding:10px 12px;max-height:170px;min-height:70px;overflow:auto;white-space:pre-wrap;border-top:3px solid var(--ink)}
.console .err{color:#ff9b91}
.steps{list-style:none;padding:0;margin:10px 0}
.steps li{display:flex;gap:10px;align-items:flex-start;padding:8px 0;border-bottom:1px dashed var(--line);font-size:14px}
.steps input{width:20px;height:20px;accent-color:var(--teal);flex:none;margin-top:2px}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}

/* โค้ด */
.code{background:var(--code);color:#e8e6f5;border:3px solid var(--ink);border-radius:14px;padding:12px 0;font:14px/1.7 'JetBrains Mono',monospace;overflow-x:auto;margin:12px 0}
.code .ln{display:flex;padding:0 14px;white-space:pre;min-width:max-content}
.code .ln::before{content:attr(data-n);width:26px;flex:none;color:#6c6a8c;user-select:none;text-align:right;margin-right:14px}
.code .s{color:#ffd27a}.code .n{color:#8fe3ff}.code .c{color:#8b89a8;font-style:italic}
.code .slot{display:inline-block;min-width:54px;padding:0 6px;border-bottom:3px solid var(--sun);color:var(--sun);text-align:center;border-radius:4px;background:rgba(255,210,94,.12)}
.code.pick .ln{cursor:pointer;border-left:4px solid transparent}
.code.pick .ln:hover{background:rgba(255,255,255,.06)}
.code.pick .ln.sel{background:rgba(255,210,94,.18);border-left-color:var(--sun)}
.code.pick .ln.right{background:rgba(91,179,95,.3)}
.code.pick .ln.wrong{background:rgba(226,88,77,.35)}

/* แผ่นด่าน */
.overlay{position:fixed;inset:0;background:rgba(30,26,46,.55);z-index:20;display:grid;place-items:center;padding:16px}
.sheet{width:min(460px,100%);padding:22px;max-height:92vh;overflow:auto}
.sheet h2{margin:2px 0 4px}
.sheet .meta{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0}
.sheet .meta div{background:var(--cream);border-radius:12px;padding:9px;text-align:center;font-size:12px;color:var(--muted)}
.sheet .meta b{display:block;color:var(--ink);font-size:17px}
.sheet .row{display:flex;gap:8px;margin-top:14px}
.sheet .row .btn{flex:1}

/* บทเรียน */
.lesson{position:fixed;inset:0;z-index:30;background:#fbf4e4;display:flex;flex-direction:column}
.lesson-top{display:flex;align-items:center;gap:12px;padding:14px max(16px,calc(50% - 360px))}
.lesson-top .x{border:0;background:var(--cream);border-radius:10px;width:38px;height:38px;font-size:18px}
.lesson-top .bar{flex:1;margin:0;height:16px}
.lesson-top .bar i{background:linear-gradient(90deg,var(--teal),#5fd3c3)}
.supplies{font-weight:700;white-space:nowrap}
.supplies.hit{animation:shake .3s linear 2}
@keyframes shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.lesson-body{flex:1;overflow-y:auto;padding:8px max(16px,calc(50% - 360px)) 24px}
.qtype{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.4px;background:var(--ink);color:#fff;border-radius:99px;padding:3px 10px}
.qprompt{font-family:'Mitr',sans-serif;font-weight:500;font-size:22px;line-height:1.45;margin:10px 0 4px}
.options{display:grid;gap:10px;margin-top:14px}
.opt{display:flex;gap:12px;align-items:center;text-align:left;background:#fff;border:2px solid var(--line);border-bottom-width:5px;border-radius:14px;padding:12px 14px;font-size:15.5px}
.opt:hover{border-color:#cdb68a}
.opt .k{width:26px;height:26px;flex:none;display:grid;place-items:center;border:2px solid var(--line);border-radius:8px;font:600 12px 'JetBrains Mono',monospace;color:var(--muted)}
.opt.mono span{font-family:'JetBrains Mono',monospace;font-size:14px;white-space:pre-wrap}
.opt.sel{border-color:var(--teal);background:#e6f8f5}
.opt.sel .k{border-color:var(--teal);color:var(--teal)}
.opt.right{border-color:var(--good);background:#e3f4e0}
.opt.wrong{border-color:var(--bad);background:#fbe3e0}
.answer-zone{min-height:64px;border:2px dashed #cdb68a;border-radius:14px;padding:8px;display:grid;gap:6px;background:#fff;margin-top:14px}
.answer-zone:empty::before{content:'แตะบรรทัดด้านล่างตามลำดับที่ถูกต้อง';color:var(--muted);font-size:13px;padding:10px}
.chips{display:grid;gap:6px;margin-top:12px}
.codechip{font:13.5px/1.5 'JetBrains Mono',monospace;white-space:pre;text-align:left;background:var(--code);color:#e8e6f5;border:2px solid var(--ink);border-bottom-width:4px;border-radius:10px;padding:7px 12px;overflow-x:auto}
.codechip.used{visibility:hidden}
.answer-zone .codechip{background:#2c3052}
.lesson-foot{border-top:3px solid var(--line);padding:16px max(16px,calc(50% - 360px));background:#fffaf0}
.lesson-foot.good{background:#dff3db;border-color:var(--good)}
.lesson-foot.bad{background:#fbe1dd;border-color:var(--bad)}
.feedback{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px}
.feedback .big{font-size:30px}
.feedback h3{margin:0;font-size:19px}
.feedback p{margin:3px 0 0;font-size:14px;line-height:1.55}
.foot-row{display:flex;justify-content:space-between;gap:10px}
.foot-row .btn{min-width:150px}
.result{max-width:520px;margin:6vh auto;text-align:center;padding:26px}
.result .big{font-size:70px}
.result .stars-big{font-size:44px;letter-spacing:6px;-webkit-text-stroke:1.5px var(--ink)}
.result .gain{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}
.result .gain div{background:var(--cream);border-radius:14px;padding:11px;font-size:12px;color:var(--muted)}
.result .gain b{display:block;font-size:20px;color:var(--ink)}

/* พาสปอร์ต */
.passgrid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:18px}
.passcard{padding:20px;background:linear-gradient(160deg,#2f4a7a,#22355c);color:#fff8e6}
.passcard .row{display:flex;gap:16px;align-items:center}
.passcard .photo{width:86px;height:100px;border-radius:12px;background:#fff8e6;display:grid;place-items:center;font-size:54px;border:3px solid var(--ink)}
.passcard h2{margin:0;color:#fff}
.passcard .mrz{font:12px 'JetBrains Mono',monospace;letter-spacing:2px;opacity:.65;margin-top:16px;word-break:break-all}
.statlist{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px}
.statlist div{background:rgba(255,255,255,.1);border-radius:12px;padding:10px;font-size:12px}
.statlist b{display:block;font-size:20px}
.stamps{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:12px;padding:18px}
.stamp{aspect-ratio:1;border-radius:50%;border:3px dashed #cbbd9f;display:grid;place-items:center;text-align:center;font-size:10.5px;line-height:1.25;color:#b5a88c;padding:8px}
.stamp .f{font-size:24px;filter:grayscale(1);opacity:.4}
.stamp.got{border:3px double var(--c);color:var(--c);transform:rotate(var(--r));background:rgba(255,255,255,.6)}
.stamp.got .f{filter:none;opacity:1}
.edit{padding:18px;margin-top:18px}
.edit input{padding:10px 12px;border:2px solid var(--line);border-radius:12px;width:min(260px,100%)}

.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);padding:12px 18px;background:var(--ink);color:#fff;border-radius:14px;z-index:50;box-shadow:0 4px 0 #120f22;font-weight:600;max-width:calc(100% - 32px);text-align:center}

@media (max-width:980px){.mapwrap{grid-template-columns:1fr}.mapinfo{display:none}.mapframe{max-width:520px;margin:auto}.editor{grid-template-columns:1fr}.passgrid{grid-template-columns:1fr}}
@media (max-width:860px){
  .layout{grid-template-columns:1fr}.sidebar{display:none}
  #app{padding:12px 14px 92px}
  .mobilebar{display:flex;position:fixed;z-index:10;bottom:0;left:0;right:0;justify-content:space-around;background:var(--paper);border-top:3px solid var(--ink);padding:7px 4px calc(8px + env(safe-area-inset-bottom))}
  .mobilebar button{background:none;border:0;display:grid;justify-items:center;color:var(--muted);font-size:11px;font-weight:600;padding:2px 10px;border-radius:12px}
  .mobilebar button b{font-size:21px}
  .mobilebar button.active{color:var(--ink);background:#ffeab0}
  .login{grid-template-columns:1fr;padding:20px 16px;min-height:auto}
  .login-postcard{display:none}
  .mapscroll{height:calc(100vh - 190px)}
}
@media (max-width:560px){
  .brand{font-size:19px}.brand small{display:none}.brandmark{width:38px;height:38px;font-size:20px}
  .top-actions{gap:5px}.pill{padding:6px 8px;font-size:13px}.lang-chip{padding:6px 9px}.lang-chip .nm{display:none}
  .atlas{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .postcard h3{font-size:14px}.postcard .topic{font-size:11.5px}
  .langgrid{grid-template-columns:1fr}
  .qprompt{font-size:19px}
  .code{font-size:12.5px}
  .foot-row .btn{min-width:0;flex:1}
  .journey{flex-wrap:wrap}.journey .grow{flex-basis:calc(100% - 82px)}.journey .btn{width:100%}
  .postcard .stars .pips{display:none}.postcard .num{font-size:10px}
  .result .gain b{font-size:17px}
  .maphead h3{font-size:14px}.maphead .back{white-space:nowrap;font-size:13px}
}
@media (max-width:420px){.topbar .brand>div{display:none}}

/* ===== เส้นทางแนวตั้ง ===== */
.btn.small{padding:7px 11px;font-size:13px;border-radius:11px;box-shadow:0 3px 0 var(--line)}
.postcard .pic{position:relative}
.photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.trek{position:relative;border:3px solid var(--ink);border-radius:24px;box-shadow:0 6px 0 var(--ink);overflow:hidden;max-width:620px;margin:auto;background:#eaf3f7}
.trek-bg{position:absolute;inset:0;opacity:.42;pointer-events:none}
.trek-bg svg,.trek-bg .photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.trek-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(rgba(255,250,240,.15),rgba(255,250,240,.55) 40%,rgba(255,250,240,.35))}
.unit{position:sticky;top:0;z-index:3;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:14px 16px;background:var(--accent);color:#fff;border-bottom:3px solid var(--ink)}
.unit small{opacity:.9;font-weight:600;font-size:12px}
.unit h2{margin:0;font-size:22px;color:#fff;text-shadow:0 2px 0 rgba(0,0,0,.25)}
.unit p{margin:0;font-size:13px;font-weight:600}
.unit-actions{display:flex;flex-direction:column;gap:6px}
.unit .btn.ghost{background:rgba(255,255,255,.92);color:var(--ink);border-color:var(--ink);box-shadow:0 3px 0 var(--ink)}
.ptrail{position:relative;z-index:1;padding:44px 0 30px;display:flex;flex-direction:column;align-items:center;gap:36px}
.prow{position:relative;transform:translateX(var(--x));display:flex;flex-direction:column;align-items:center}
.pnode{width:76px;height:70px;border-radius:50%;border:3px solid var(--ink);display:grid;place-items:center;font-size:30px;background:#c9c3b8;box-shadow:0 8px 0 #8f887c,0 8px 0 3px var(--ink);transition:transform .12s,box-shadow .12s;position:relative}
.pnode span{filter:grayscale(1);opacity:.55}
.pnode.done,.pnode.current{background:var(--accent);box-shadow:0 8px 0 color-mix(in srgb,var(--accent) 60%,#000),0 8px 0 3px var(--ink)}
.pnode.done span,.pnode.current span{filter:none;opacity:1}
.pnode.done{background:var(--sun);box-shadow:0 8px 0 #c99a2a,0 8px 0 3px var(--ink)}
.pnode:not([aria-disabled]):hover{transform:translateY(-2px)}
.pnode:not([aria-disabled]):active{transform:translateY(6px);box-shadow:0 2px 0 #8f887c,0 2px 0 3px var(--ink)}
.pnode[aria-disabled]{cursor:not-allowed}
.pnode.current::after{content:'';position:absolute;inset:-12px;border-radius:50%;border:4px solid var(--accent);opacity:.55;animation:ringp 1.6s ease-out infinite}
@keyframes ringp{from{transform:scale(.9);opacity:.8}to{transform:scale(1.25);opacity:0}}
.pnode.chest,.pnode.summit{width:88px;height:80px;font-size:36px}
.bubble{position:absolute;top:-34px;background:#fff;border:3px solid var(--ink);border-radius:12px;padding:3px 12px;font-weight:800;color:var(--accent);animation:hop 1.4s ease-in-out infinite;white-space:nowrap;z-index:2}
.bubble::after{content:'';position:absolute;left:50%;bottom:-9px;margin-left:-7px;border:7px solid transparent;border-top-color:var(--ink);border-bottom:0}
.pstars{margin-top:12px;font-size:15px;letter-spacing:2px;-webkit-text-stroke:.8px var(--ink)}
.pstars i{font-style:normal;color:#efe6d4}.pstars i.on{color:#ffd23f}
.deco{position:absolute;top:0;display:grid;place-items:center}
.deco.right{left:120px}.deco.left{right:120px}
.traveler{font-size:46px;animation:hop 1.4s ease-in-out infinite;filter:drop-shadow(0 4px 0 rgba(0,0,0,.2))}
.flagpost{display:grid;justify-items:center;font-size:30px;background:rgba(255,250,240,.9);border:2px solid var(--ink);border-radius:14px;padding:6px 10px;transform:rotate(-4deg)}
.flagpost small{font-size:11px;font-weight:700;white-space:nowrap}
.trail-end{margin-top:10px;background:rgba(255,250,240,.92);border:2px solid var(--ink);border-radius:14px;padding:8px 14px;font-weight:700;font-size:14px}

/* ===== บทเรียนเขียนโค้ด ===== */
.lesson-body{padding-top:12px}
.lesson-top,.lesson-body,.lesson-foot{padding-left:max(16px,calc(50% - 560px));padding-right:max(16px,calc(50% - 560px))}
.readcard{max-width:760px;margin:6px auto;padding:22px}
.readcard .lead{font-size:18px;line-height:1.75;margin:12px 0}
.readcard h3{margin:16px 0 0}
.outbox{background:#141625;color:#b9f6c9;border:3px solid var(--ink);border-radius:12px;padding:8px 12px;margin:10px 0}
.outbox b{color:#fff;font-size:12px;letter-spacing:.5px}
.outbox pre,pre.mini{margin:4px 0 0;font:13px/1.55 'JetBrains Mono',monospace;white-space:pre-wrap}
pre.mini{background:rgba(255,255,255,.6);border-radius:8px;padding:6px 10px}
.workspace{display:grid;gap:14px}
.workspace.has-preview{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}
.taskcard{padding:16px 18px;margin-bottom:12px}
.taskcard .qprompt{font-size:19px}
.checklist{list-style:none;padding:0;margin:10px 0 4px;display:grid;gap:5px}
.checklist li{display:flex;gap:8px;font-size:14px;align-items:flex-start}
.checklist li.ok{color:var(--pine)}.checklist li.no{color:var(--bad);font-weight:600}
.hintbox{margin-top:10px;background:#fff6d8;border:2px dashed #e0b84a;border-radius:12px;padding:8px 12px}
.hintbox .code{margin:6px 0 0}
.editorwrap{border:3px solid var(--ink);border-radius:16px;overflow:hidden;background:var(--code)}
.ed-head{display:flex;align-items:center;gap:8px;padding:7px 12px;background:#2c3052;color:#cfcde6;font:600 12.5px 'JetBrains Mono',monospace}
.editorwrap textarea{display:block;width:100%;min-height:230px;resize:vertical;border:0;outline:0;background:var(--code);color:#e8e6f5;font:14px/1.65 'JetBrains Mono',monospace;padding:12px 14px;tab-size:2}
.workspace .preview{min-height:300px}
.ptitle{padding:7px 12px;background:var(--cream);border-bottom:3px solid var(--ink);font-weight:700;font-size:13px}
.fbline{margin:0 0 10px;font-weight:600;color:var(--bad)}
.foot-left{display:flex;gap:8px}
@media (max-width:860px){.workspace.has-preview{grid-template-columns:1fr}.workspace .preview{min-height:220px}}
@media (max-width:560px){

  .prow{transform:translateX(calc(var(--x) * .7))}
  .deco.right{left:96px}.deco.left{right:96px}
  .traveler{font-size:38px}
  .flagpost small{display:none}
  .unit h2{font-size:19px}
  .foot-left .btn{padding:9px 10px;font-size:13px}
  #checkBtn{flex:1}
}

/* ===== แอปมือถือ: เส้นทางเดียว + เมนูล่าง ===== */
#app{max-width:560px;padding:12px 14px 96px}
.main{min-width:0}
.mobilebar{display:flex;position:fixed;z-index:10;bottom:0;left:50%;transform:translateX(-50%);width:min(560px,100%);justify-content:space-around;background:var(--paper);border:3px solid var(--ink);border-bottom:0;border-radius:20px 20px 0 0;padding:7px 4px calc(8px + env(safe-area-inset-bottom))}
.mobilebar button{background:none;border:0;display:grid;justify-items:center;color:var(--muted);font-size:11px;font-weight:600;padding:3px 10px;border-radius:12px}
.mobilebar button b{font-size:22px}
.mobilebar button.active{color:var(--ink);background:#ffeab0}
.topbar{position:sticky;top:0;z-index:8;background:#f3e7cc;margin:-12px -14px 14px;padding:10px 14px;border-bottom:2px solid var(--line)}
.topbar .brand>div{display:none}
.journey{margin-bottom:14px}
.journey-line .trek{border-radius:0;box-shadow:none;border-top:0;border-bottom:0;max-width:none}
.journey-line .trek:first-child{border-top:3px solid var(--ink);border-radius:24px 24px 0 0}
.journey-line .trek:last-child{border-bottom:3px solid var(--ink);border-radius:0 0 24px 24px;box-shadow:0 6px 0 var(--ink)}
.journey-line .trek+.trek .unit{border-top:3px solid var(--ink)}
.trek.locked .trek-bg{filter:grayscale(.75)}
.trek.locked .unit{filter:saturate(.35)}
.editor{grid-template-columns:1fr}
.labgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:420px){.labgrid{grid-template-columns:1fr}}
.embed .mobilebar{display:none}.embed #app{padding-bottom:20px}

/* ===== ไอคอน SVG แทนอิโมจิ + พื้นแผนที่เรียบ ===== */
.ic{width:1.15em;height:1.15em;vertical-align:-.2em;flex:none}
.brandmark .ic{width:26px;height:26px;color:var(--ink)}
.pill .ic{color:var(--coral)}
.mobilebar b .ic{width:24px;height:24px}
.pnode .ic{width:32px;height:32px;stroke-width:2.4;color:#fff}
.pnode.locked .ic{color:#8f887c}
.pnode.chest .ic,.pnode.summit .ic{width:38px;height:38px}
.pstars{display:flex;gap:2px}
.pstars .ic,.stars-big .ic{fill:#efe6d4;stroke:var(--ink);stroke-width:1.6}
.pstars .ic{width:17px;height:17px}
.pstars .ic.on,.stars-big .ic.on{fill:#ffd23f}
.stars-big{display:flex;justify-content:center;gap:6px}.stars-big .ic{width:44px;height:44px}
.bigicon{display:grid;place-items:center;width:84px;height:84px;margin:0 auto 6px;border-radius:50%;background:var(--sun);border:3px solid var(--ink)}
.bigicon .ic{width:44px;height:44px}
.checklist li .ic{margin-top:2px}.checklist li.ok .ic{color:var(--pine)}.checklist li.no .ic{color:var(--bad)}.checklist li .ic{color:var(--muted)}
.feedback .big .ic{width:34px;height:34px;color:var(--pine)}
.lesson-top .x .ic{width:20px;height:20px}
.supplies{display:flex;align-items:center;gap:6px}
.proj .ico .ic{width:30px;height:30px;color:var(--teal)}
.flagpost .ic{width:26px;height:26px;color:var(--accent)}
.unit .btn .ic,.trail-end .ic{width:18px;height:18px}
.stamp .f .ic{width:26px;height:26px}
.avatar{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;border:3px solid var(--ink);color:#fff;font:700 16px 'Mitr',sans-serif;line-height:1}
.pill.me{padding:2px}
.avatar.traveler{width:48px;height:48px;font-size:22px;animation:hop 1.4s ease-in-out infinite;box-shadow:0 4px 0 rgba(0,0,0,.2)}
.avatar.photo{width:86px;height:100px;border-radius:12px;font-size:44px}
.avatar.av{width:40px;height:40px;font-size:18px}
.avatar-pick button{border:3px solid transparent;border-radius:50%}
.avatar-pick button.sel{border-color:var(--ink);box-shadow:0 0 0 3px #fff inset}
/* แผนที่เป็นพื้นเรียบ ไม่มีภาพด้านหลัง */
.trek{background:#f6efdf}
.journey-line .trek:nth-child(even){background:#f1e8d3}
.trek-bg{display:none}
/* หมุดด่านแสดงเลขด่านแทนไอคอน */
.pnum{font:700 28px 'Mitr',sans-serif;color:#fff;text-shadow:0 2px 0 rgba(0,0,0,.25)}
.pnode.locked .pnum{color:#8f887c;text-shadow:none}
.pnode.done .pnum{color:var(--ink);text-shadow:none}
.plabel{margin-top:12px;font-weight:700;font-size:13px;background:rgba(255,250,240,.95);border:2px solid var(--ink);border-radius:10px;padding:1px 9px}
.pnode.locked+.plabel{opacity:.6}
/* หมุดด่านเป็นสี่เหลี่ยมมุมมน */
.pnode{border-radius:18px;width:74px;height:70px}
.pnode.chest,.pnode.summit{border-radius:20px;width:84px;height:78px}
.pnode.current::after{border-radius:24px}
/* หมุดด่านเป็นสี่เหลี่ยมจัตุรัส */
.pnode{border-radius:6px;width:72px;height:72px}
.pnode.chest,.pnode.summit{border-radius:6px;width:82px;height:82px}
.pnode.current::after{border-radius:10px}
/* ทุกกล่อง ปุ่ม และขอบ เป็นมุมเหลี่ยม */
*,*::before,*::after{border-radius:4px!important}
.bubble::after{border-radius:0!important}

/* ===== ขั้นลองปรับ / ทายผล ===== */
.tkgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:12px 0}
.tk{display:grid;gap:5px;font-size:13px;font-weight:700;color:var(--muted)}
.tk select,.tk input:not([type=range]){padding:9px 10px;border:2px solid var(--line);background:#fff;font-weight:600;color:var(--ink)}
.tkrow{display:flex;align-items:center;gap:8px}
.tkrow input[type=range]{flex:1;accent-color:var(--teal);height:28px}
.tkrow b{min-width:42px;text-align:center;background:var(--ink);color:#fff;padding:3px 6px;font:600 14px 'JetBrains Mono',monospace}
.viz{margin:10px 0}
.viz:empty{display:none}
.vscreen{background:#141625;color:#b9f6c9;font:15px/1.6 'JetBrains Mono',monospace;padding:12px 14px;border:3px solid var(--ink)}
.vbox{display:inline-grid;justify-items:center;border:3px solid var(--ink);background:#fff6d8;padding:6px 18px;box-shadow:0 4px 0 var(--ink)}
.vbox small{font:600 12px 'JetBrains Mono',monospace;color:var(--muted)}
.vbox b{font:700 24px 'JetBrains Mono',monospace}
.varrow{margin-left:12px;font-weight:700;color:var(--pine)}
.vsteps{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font:600 16px 'JetBrains Mono',monospace}
.vsteps span{background:#fff;border:2px solid var(--ink);padding:5px 10px}
.vsteps span:last-child{background:var(--sun)}
.vsteps i{font-style:normal;color:var(--muted)}
.vnote{margin:8px 0 0;font-size:13px;color:var(--muted)}
.vchips{display:flex;flex-wrap:wrap;gap:6px}
.vchips span{display:grid;justify-items:center;min-width:64px;border:2px solid var(--line);background:#fff;padding:5px 8px}
.vchips span.on{border-color:var(--ink);background:#e3f4e0}
.vchips small{font-size:11px;color:var(--muted)}
.vchips b{font:600 15px 'JetBrains Mono',monospace}
.vfork{display:grid;gap:8px}
.vcond{font:600 16px 'JetBrains Mono',monospace}
.vbranch{display:flex;gap:8px}
.vbranch span{flex:1;text-align:center;border:2px dashed var(--line);padding:8px;color:var(--muted);font-weight:700}
.vbranch span.on{border:2px solid var(--ink);background:#e3f4e0;color:var(--ink)}
.tkprev{margin-top:10px;min-height:200px}
.tkprev iframe{min-height:180px}
.fbline.ok{color:var(--pine)}
.fbline.muted{color:var(--muted);font-weight:500}
.avatar.navav{width:26px;height:26px;font-size:13px;border-width:2px}
/* หน้าเข้าสู่ระบบแบบเรียบ */
.login{display:grid;place-items:center;grid-template-columns:1fr;min-height:100vh;padding:20px 16px}
.login .login-card{width:min(400px,100%);padding:28px}
.login .login-card .brand{justify-content:center;margin-bottom:6px}
.login .login-card h2{text-align:center;margin:10px 0 16px}
/* ป้าย Beta ข้างชื่อแอป และแสดงชื่อแอปบนแถบด้านบน */
.beta{display:inline-block;font:700 11px 'IBM Plex Sans Thai',sans-serif;letter-spacing:.5px;text-transform:uppercase;background:var(--coral);color:#fff;border:2px solid var(--ink);padding:1px 6px;vertical-align:middle}
.topbar .brand>div{display:block;font-size:18px;white-space:nowrap}
@media (max-width:400px){.topbar .brand>div{font-size:15px}.topbar .lang-chip .nm{display:none}}

/* ===== บทเรียนแบบคอร์ส: เนื้อหา, test case ===== */
.mdcard h2{margin:8px 0 6px;font-size:22px}
.mdcard p{font-size:16px;line-height:1.75;margin:10px 0}
.mdcard code,.chprompt code{font:600 14px 'JetBrains Mono',monospace;background:#efe6d4;padding:1px 6px}
.mdl{margin:8px 0;padding-left:22px;line-height:1.8}
.mdt{border-collapse:collapse;margin:10px 0;width:100%}
.mdt th,.mdt td{border:2px solid var(--line);padding:6px 10px;text-align:left}
.mdt th{background:var(--cream)}
.chtitle{margin:8px 0 2px}
.chprompt{white-space:pre-line;font-size:17px}
.tcases{display:grid;gap:8px;padding:10px;max-height:340px;overflow:auto}
.tcase{border:2px solid var(--line);background:#fff;padding:8px 10px;font-size:13px}
.tcase.ok{border-color:var(--good);background:#eef8ec}
.tcase.no{border-color:var(--bad);background:#fdeeec}
.tcase b{display:flex;align-items:center;gap:4px}
.tcase small{color:var(--muted);font-weight:700}
.tcase pre{margin:2px 0 4px;font:13px/1.5 'JetBrains Mono',monospace;white-space:pre-wrap;background:#f6f1e6;padding:4px 8px}
.guide{line-height:1.9;padding-left:22px}