:root{--navy:#2f3a52;--terra:#b5532f;--gold:#d39a4a;--paper:#f7f1e6;--ink:#2a2420;--soft:#6b6157;--chat:#ece5dd;--line:#ddd3c6}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:#141b2b}
html,body{touch-action:manipulation}
body{font-family:"DM Sans",system-ui,-apple-system,sans-serif;color:var(--ink);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}
.app{position:relative;max-width:520px;margin:0 auto;height:100vh;height:100dvh;display:flex;flex-direction:column;background:var(--chat);overflow:hidden}
@media (min-width:560px){.app{box-shadow:0 0 0 1px rgba(255,255,255,.06),0 20px 60px rgba(0,0,0,.4)}}

/* cabecera */
.head{background:var(--navy);color:#fff;padding:10px 12px;padding-top:calc(10px + env(safe-area-inset-top));display:flex;align-items:center;gap:10px;flex:none}
.avatar{width:40px;height:40px;flex:none}
.who{flex:1;min-width:0}
.who b{display:block;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.who small{font-size:12px;opacity:.75}
.who small.off{color:#ffcf7a;opacity:1}
.hbtn{background:rgba(255,255,255,.12);border:0;color:#fff;border-radius:50%;width:36px;height:36px;font-size:16px;cursor:pointer;flex:none}

/* pergamino */
.scroll{display:flex;align-items:center;gap:8px;padding:7px 12px;background:linear-gradient(180deg,#f4e3c3,#ecd6ac);border-bottom:1px solid #d8c29a;flex:none}
.scroll .sl{font-family:"Fraunces",Georgia,serif;font-size:11px;font-weight:600;color:#7a5a2a;letter-spacing:.06em;text-transform:uppercase}
.slots-bar{flex:1;display:flex;gap:5px;min-width:0}
.slot{flex:1;min-width:0;height:32px;border:1.5px dashed #b99a66;border-radius:8px;display:grid;place-items:center;font-family:"Fraunces",Georgia,serif;font-weight:700;color:#7a5a2a;font-size:13px;letter-spacing:.04em;overflow:hidden;white-space:nowrap;padding:0 3px}
.slot i{font-style:normal;opacity:.5;font-size:11px}
.slot.got{border-style:solid;border-color:var(--terra);background:#fff6e6;color:var(--terra)}
.slot.pop{animation:stamp .5s cubic-bezier(.2,1.6,.4,1)}
.slot.next{border-color:var(--terra)}
@keyframes stamp{0%{transform:scale(1.6) rotate(-8deg);opacity:0}100%{transform:none;opacity:1}}

/* mensajes */
.msgs{flex:1;overflow-y:auto;padding:14px 12px 10px;display:flex;flex-direction:column;gap:8px;-webkit-overflow-scrolling:touch}
.msg{max-width:86%;padding:9px 12px;border-radius:14px;font-size:15.5px;line-height:1.42;box-shadow:0 1px 0 rgba(0,0,0,.08);animation:pop .25s ease}
.msg.bot{background:#fff;align-self:flex-start;border-top-left-radius:4px}
.msg.me{background:#dcf3c8;align-self:flex-end;border-top-right-radius:4px}
.msg.sys{align-self:center;background:#f6edd8;color:#6b5a3a;font-size:12.5px;border-radius:10px;text-align:center;max-width:92%}
.msg.ok{background:#e3f1e5;color:#24502e}
.msg.bad{background:#f7e0da;color:#7a2d1c}
.msg .label{display:block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--terra);margin-bottom:3px}
.msg img.photo{display:block;max-width:220px;width:100%;border-radius:8px}
.typing{align-self:flex-start;background:#fff;border-radius:14px;padding:10px 14px;display:flex;gap:4px}
.typing i{width:6px;height:6px;border-radius:50%;background:#9a9a9a;animation:blink 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes blink{0%,100%{opacity:.3}50%{opacity:1}}
@keyframes pop{from{transform:translateY(6px);opacity:0}to{transform:none;opacity:1}}
.shake{animation:shake .4s}
@keyframes shake{0%,100%{transform:none}20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}

/* ilustraciones */
.illus{background:#fff;border-radius:14px;padding:6px;align-self:stretch;animation:pop .3s ease}
.illus svg,.illus img{display:block;width:100%;height:auto;border-radius:10px}
.illus .cap{font-size:12px;color:var(--soft);text-align:center;padding:4px 0 0}

/* plano */
.mapcard{background:#fff;border-radius:14px;padding:8px;align-self:stretch;animation:pop .3s ease}
.mapcard svg{display:block;width:100%;height:auto}
.mapcard .dist{font-size:14px;text-align:center;color:#444;padding:6px 0 2px}
.mapcard .dist b{color:var(--terra);font-size:17px}
.mapcard .gps{font-size:11.5px;text-align:center;color:#8b8073}
.mapcard .gps.warn{color:#a2461f}
.walkpath{animation:dash 1.2s linear infinite}
@keyframes dash{to{stroke-dashoffset:-20}}
.pulse{animation:pulse 1.6s ease-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes pulse{0%{transform:scale(.6);opacity:.7}100%{transform:scale(2.2);opacity:0}}

/* letras */
.tiles,.answer{display:flex;gap:4px;justify-content:center;flex-wrap:wrap;margin-top:8px}
.tiles button{width:34px;height:40px;border:0;border-radius:7px;background:var(--navy);color:#fff;font:700 17px "Fraunces",Georgia,serif;cursor:pointer;padding:0;box-shadow:0 2px 0 #1b2336}
.tiles button:disabled{opacity:.2;cursor:default}
.answer span{width:34px;height:40px;border-radius:7px;border:1.5px dashed #b99a66;display:grid;place-items:center;font:700 17px "Fraunces",Georgia,serif;color:var(--navy);background:#fffaf0;cursor:pointer}
.answer span.f{border-style:solid;border-color:var(--navy)}
.answer.win span{background:#e3f1e5;border-color:#5f9e6e;color:#24502e}

/* dock */
.dock{background:#f3eee8;border-top:1px solid var(--line);padding:10px;padding-bottom:calc(10px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:8px;flex:none;min-height:64px}
.dock .row{display:flex;gap:8px;width:100%}
.dock button{flex:1 1 0;min-width:0;border:0;border-radius:999px;padding:12px 14px;font:inherit;font-size:15px;font-weight:700;background:var(--navy);color:#fff;cursor:pointer}
.dock button.alt{background:#fff;color:var(--navy);border:1px solid #cfc4b5}
.dock button.speaking{background:var(--terra);color:#fff;border-color:var(--terra)}
.dock button:disabled{opacity:.45;cursor:default}
.dock a.btnlink{flex:1 1 0;text-align:center;text-decoration:none;border-radius:999px;padding:12px 14px;font-size:15px;font-weight:700;background:#fff;color:var(--navy);border:1px solid #cfc4b5}
.dock form{display:flex;gap:8px;width:100%}
.dock input{flex:1;min-width:0;border:1px solid #cfc4b5;border-radius:999px;padding:11px 14px;font:inherit;font-size:16px}
.dock form button{flex:0 0 auto}

/* superposiciones */
.overlay{position:absolute;inset:0;display:none;flex-direction:column;background:var(--paper);z-index:5;overflow-y:auto}
.overlay.on{display:flex;animation:pop .3s ease}
.ov-art svg{display:block;width:100%;height:auto}
.ov-body{padding:18px 20px 20px;padding-bottom:calc(20px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:11px;flex:1}
.ov-body h3{font-family:"Fraunces",Georgia,serif;font-size:25px;line-height:1.15;margin:0;color:var(--ink)}
.ov-body .kicker{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--terra);font-weight:700}
.ov-body p{font-size:15.5px;line-height:1.55;color:#3d352e;margin:0}
.ov-body .note{font-size:12px;color:#8b8073}
.ov-body .err{color:#a2461f;font-size:14px;min-height:1.2em}
.ov-body label{font-size:13px;font-weight:700;color:var(--soft);margin-top:4px}
.ov-body input{border:1px solid #cfc4b5;border-radius:12px;padding:13px 14px;font:inherit;font-size:17px;background:#fff;width:100%}
.ov-body input.code{text-transform:uppercase;letter-spacing:.12em;font-weight:700}
.ov-actions{display:flex;flex-direction:column;gap:8px;margin-top:auto;padding-top:8px}
.ov-actions button{border:0;border-radius:999px;padding:14px 16px;font:inherit;font-weight:700;font-size:16px;cursor:pointer;background:var(--navy);color:#fff}
.ov-actions button.alt{background:#fff;color:var(--navy);border:1px solid #cfc4b5}
.ov-actions button.speaking{background:var(--terra);color:#fff;border-color:var(--terra)}
.ov-actions button:disabled{opacity:.5}
.loading{text-align:center;margin:auto;color:var(--soft)}

/* diploma */
.diploma{margin:16px;border:2px solid var(--terra);border-radius:14px;padding:18px 16px;text-align:center;background:#fffaf0;position:relative}
.diploma:before{content:"";position:absolute;inset:5px;border:1px solid #e0c7a0;border-radius:10px;pointer-events:none}
.diploma .seal{width:70px;height:70px;margin:2px auto 8px;animation:stamp .6s cubic-bezier(.2,1.6,.4,1)}
.diploma h3{font-family:"Fraunces",Georgia,serif;font-size:24px;margin:4px 0}
.diploma .team{font-family:"Fraunces",Georgia,serif;font-size:19px;color:var(--navy);margin:2px 0 6px}
.diploma .word{font-family:"Fraunces",Georgia,serif;letter-spacing:.2em;color:var(--terra);font-weight:800;font-size:16px;margin:8px 0;word-break:break-word}
.diploma .stats{display:flex;justify-content:center;gap:16px;font-size:13px;color:#5c5147;margin-top:8px}
.diploma .stats b{display:block;font-family:"Fraunces",Georgia,serif;font-size:20px;color:var(--ink)}
.diploma img{width:100%;max-width:240px;border-radius:10px;margin:8px auto 0;display:block}
.confetti{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:6}
.confetti i{position:absolute;top:-10px;width:7px;height:11px;border-radius:2px;animation:fall 1.4s ease-in forwards}
@keyframes fall{to{transform:translateY(105vh) rotate(540deg);opacity:.9}}

/* ===== v2 ===== */
button,a,input{touch-action:manipulation}
/* tarjeta de camino */
.walkcard{background:#fff;border-radius:16px;align-self:stretch;overflow:hidden;animation:pop .3s ease;box-shadow:0 1px 0 rgba(0,0,0,.08)}
.wc-top{padding:10px 12px 8px;display:flex;flex-direction:column;gap:2px}
.wc-step{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#5f9e6e}
.wc-go{font-size:17px;line-height:1.25;color:var(--ink)}
.wc-hint{font-size:13px;color:var(--soft);line-height:1.35}
.wc-map{position:relative;background:#efe2c6}
.wc-map>svg{display:block;width:100%;height:auto;min-height:200px}
.wc-tools{position:absolute;top:8px;right:8px;display:flex;flex-direction:column;gap:6px}
.wc-btn{border:0;border-radius:999px;background:rgba(255,255,255,.95);color:var(--navy);font:inherit;font-size:12.5px;font-weight:700;padding:7px 11px;box-shadow:0 1px 4px rgba(0,0,0,.18);cursor:pointer}
.wc-btn.on{background:var(--navy);color:#fff}
.wc-compass{position:absolute;left:8px;bottom:8px;width:76px;text-align:center}
.wc-compass svg{width:60px;height:60px;display:block;margin:0 auto;filter:drop-shadow(0 1px 3px rgba(0,0,0,.25))}
.wc-compass .needle{transition:transform .25s ease;transform-origin:30px 30px}
.wc-compass small{display:block;font-size:10.5px;font-weight:700;color:var(--navy);background:rgba(255,255,255,.85);border-radius:6px;margin-top:3px;padding:1px 3px}
.wc-bottom{padding:8px 12px 11px;text-align:center;display:flex;flex-direction:column;gap:1px}
.wc-bottom .dval{font-family:"Fraunces",Georgia,serif;font-size:30px;line-height:1.1;color:#3f7d50}
.wc-bottom .near{font-size:14px;font-weight:700;color:#3f7d50;min-height:0}
.wc-bottom .near:empty{display:none}
.wc-bottom .gps{font-size:11.5px;color:#8b8073}
.wc-bottom .gps.warn{color:#a2461f}
/* mensajes anchos (pruebas) */
.msg.wide{max-width:96%;align-self:stretch}
.cipher{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:18px;letter-spacing:.12em;background:#f4ead6;border-radius:8px;padding:10px;text-align:center;word-break:break-word;color:var(--navy);margin-top:4px}
.ckey{display:block;margin-top:6px;font-size:12.5px;color:var(--soft)}
/* ordenar */
.seq{display:flex;flex-direction:column;gap:5px;margin-top:4px}
.seq em{font-size:13px;color:var(--soft);text-align:center}
.seq span{display:flex;align-items:center;gap:8px;background:#fffaf0;border:1.5px solid var(--navy);border-radius:9px;padding:7px 10px;font-weight:600}
.seq span b{width:22px;height:22px;border-radius:50%;background:var(--navy);color:#fff;font-size:12px;display:grid;place-items:center;flex:none}
.seq.win span{background:#e3f1e5;border-color:#5f9e6e}
.seq.win span b{background:#5f9e6e}
.opts{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;justify-content:center}
.opts button,.pairs button{border:0;border-radius:9px;background:var(--navy);color:#fff;font:inherit;font-size:14.5px;font-weight:600;padding:9px 12px;cursor:pointer;box-shadow:0 2px 0 #1b2336}
.opts button:disabled{opacity:.2;cursor:default}
/* emparejar */
.pairs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:6px}
.pairs .col{display:flex;flex-direction:column;gap:6px}
.pairs .r button{background:#fff;color:var(--navy);border:1.5px solid var(--navy);box-shadow:none}
.pairs button.sel{background:var(--terra);color:#fff;box-shadow:0 2px 0 #7a3520}
.pairs button.ok{background:#e3f1e5;color:#24502e;border:1.5px solid #5f9e6e;box-shadow:none}
/* foto antigua */
.illus.old img{filter:sepia(.35) contrast(1.05)}
/* valoración */
.stars{display:flex;justify-content:center;gap:6px}
.dock .stars button{flex:0 0 auto;width:48px;height:48px;padding:0;border-radius:50%;background:#fff;color:#d8cbb8;border:1px solid #cfc4b5;font-size:26px;line-height:1}
.dock .stars button.on{color:#d39a4a;border-color:#d39a4a;background:#fff8ea}
/* premio */
.premio{margin:0 16px 14px;border:2px dashed var(--gold);border-radius:14px;padding:14px;text-align:center;background:#fff8ea;display:flex;flex-direction:column;gap:6px}
.premio b{font-size:16px}
.premio .pc{font-size:14px;color:var(--navy);font-weight:700}
.premio small{font-size:12px;color:var(--soft)}
.premio .pcode{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:22px;font-weight:700;letter-spacing:.15em;color:var(--terra)}
.premio .canjeado{font-weight:700;color:#7a2d1c;background:#f7e0da;border-radius:8px;padding:6px}
.premio button{border:1px solid #cfc4b5;border-radius:999px;padding:11px 14px;font:inherit;font-weight:700;background:#fff;color:var(--navy);cursor:pointer}
.premio button.warn{background:var(--terra);color:#fff;border-color:var(--terra)}
.ovlink{display:block;text-align:center;text-decoration:none;border-radius:999px;padding:14px 16px;font-weight:700;font-size:16px;background:var(--terra);color:#fff}
.inline-link{color:var(--terra);font-weight:700}
.msgs>*{flex-shrink:0}
.wc-tools{position:static;flex-direction:row;justify-content:center;gap:8px;padding:8px 10px 0;background:#fff}
.wc-btn{box-shadow:none;border:1px solid #cfc4b5;padding:8px 14px}
.wc-compass{top:8px;bottom:auto}
/* demo */
.demo-tag{display:inline-block;margin-left:8px;font:800 10px "DM Sans",sans-serif;letter-spacing:.1em;background:#d39a4a;color:#2a2420;border-radius:6px;padding:2px 6px;vertical-align:2px}
.demo-map{height:260px;background:#efe2c6}
.demo-map .leaflet-control-attribution{font-size:9px}
.dm{width:100%;height:100%;box-sizing:border-box;border-radius:50%;display:grid;place-items:center;font:800 13px "DM Sans",sans-serif;border:2.5px solid #b5532f;background:#fff;color:#b5532f;box-shadow:0 1px 4px rgba(0,0,0,.35)}
.dm.done{background:#b5532f;color:#fff}
.dm.next{background:#5f9e6e;border:3px solid #fff;color:#fff;font-size:16px;box-shadow:0 0 0 6px rgba(95,158,110,.3),0 2px 6px rgba(0,0,0,.35)}
.msg.nota{background:#fff8e8;border:1px dashed #d39a4a}
.ov-body .note.demo-note{color:#b3261e;font-size:14.5px;font-weight:700;line-height:1.45}
.msg.destacado{background:#fff1ef;color:#b3261e;font-weight:700;border:1px solid #f0c4bc}