:root{
  --paper:#E9E7DC; --panel:#F3F1E8; --grid:#CFD3C4; --ink:#1A2620; --ink-soft:#5A655C;
  --rule:#BEC3B4; --seal:#C2382A; --jade:#2E6B5B; --amber:#9A6B12; --shadow:rgba(26,38,32,.14);
}
@media (prefers-color-scheme: dark){
  :root{
    --paper:#121815; --panel:#19211D; --grid:#232D28; --ink:#E6EBE5; --ink-soft:#9AA79E;
    --rule:#2C3630; --seal:#E1614B; --jade:#5DC0A4; --amber:#D9A441; --shadow:rgba(0,0,0,.45);
  }
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background-color:var(--paper); color:var(--ink);
  background-image:repeating-linear-gradient(0deg,var(--grid) 0 1px,transparent 1px 28px),
                   repeating-linear-gradient(90deg,var(--grid) 0 1px,transparent 1px 28px);
  font-family:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN",system-ui,sans-serif;
  font-size:16px; line-height:1.6;
}
.wrap{max-width:880px;margin:0 auto;padding-inline:18px;padding-block:26px 90px}
a{color:var(--jade)}
.eyebrow{font-family:"DM Mono",ui-monospace,monospace;font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 10px}
h1{font-family:"Dela Gothic One","Zen Kaku Gothic New",sans-serif;font-weight:400;font-size:clamp(30px,6.4vw,46px);line-height:1.06;margin:0 0 6px;text-wrap:balance;letter-spacing:-.01em}
h2{font-family:"Dela Gothic One",sans-serif;font-weight:400;font-size:19px;line-height:1.25;margin:0 0 4px}
.subtitle{margin:0 0 18px;color:var(--ink-soft);font-size:15px}
.mono{font-family:"DM Mono",ui-monospace,monospace}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:22px}
.topbar .who{font-family:"DM Mono",monospace;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft)}
.link{background:none;border:0;color:var(--ink-soft);font-family:"DM Mono",monospace;font-size:12px;letter-spacing:.1em;text-transform:uppercase;cursor:pointer;text-decoration:underline;padding:6px 0}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.tag{font-family:"DM Mono",monospace;font-size:11px;letter-spacing:.09em;text-transform:uppercase;border:1px solid var(--rule);padding:4px 9px;color:var(--ink-soft);background:var(--panel)}
.tag b{color:var(--ink);font-weight:500}
.howto{border:1px solid var(--rule);border-left:3px solid var(--jade);background:var(--panel);padding:12px 14px;margin:0 0 22px;font-size:14px;line-height:1.55;color:var(--ink-soft)}
.howto b{color:var(--ink)}

/* rail */
.rail{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-bottom:22px}
.step{border-top:3px solid var(--rule);padding-top:8px;font-family:"DM Mono",monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft)}
.step .k{font-family:"Dela Gothic One",sans-serif;font-size:17px;display:block;line-height:1;margin-bottom:5px;color:var(--rule)}
.step[data-state="active"]{border-top-color:var(--seal);color:var(--ink)}
.step[data-state="active"] .k{color:var(--seal)}
.step[data-state="done"]{border-top-color:var(--jade)}
.step[data-state="done"] .k{color:var(--jade)}

/* tarjetas */
.card{background:var(--panel);border:1px solid var(--rule);padding:22px;margin-bottom:18px;box-shadow:0 1px 0 var(--shadow);position:relative}
.card h2 .n{color:var(--seal);margin-right:9px}
.brief{color:var(--ink-soft);font-size:14.5px;margin:0 0 16px}
.card>h2,.card>h2+.brief{padding-right:64px}
.story{font-size:16.5px;line-height:1.78;border-left:3px solid var(--rule);padding-left:16px;margin:0 0 4px}
.story p{margin:0 0 14px}
.question{font-weight:700}
.hint{font-family:"DM Mono",monospace;font-size:11.5px;letter-spacing:.06em;color:var(--ink-soft);text-transform:uppercase;margin:18px 0 10px}
table.legs{border-collapse:collapse;margin:4px 0 16px;font-size:15px;min-width:280px}
table.legs caption{text-align:left;font-family:"DM Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);padding-bottom:6px}
table.legs th,table.legs td{border:1px solid var(--rule);padding:6px 12px;text-align:left}
table.legs td:last-child,table.legs th:last-child{text-align:right;font-variant-numeric:tabular-nums}
table.legs th{background:var(--paper);font-weight:500}
.tablewrap{overflow-x:auto}

/* japonés */
.jp{border:0;background:none;padding:0 1px;font:inherit;color:inherit;border-bottom:1px dotted var(--jade);cursor:pointer;position:relative}
.jp rt{font-size:.5em;color:var(--jade)}
.jp .tip{position:absolute;left:0;top:calc(100% + 6px);z-index:5;white-space:nowrap;background:var(--ink);color:var(--paper);font-family:"DM Mono",monospace;font-size:12px;padding:5px 9px;line-height:1.3}

/* fichas */
.sentence{font-size:17px;line-height:2.4;margin:6px 0 2px}
.slot{display:inline-block;min-width:150px;min-height:38px;line-height:34px;border:1px dashed var(--rule);border-bottom:2px solid var(--seal);text-align:center;padding:0 10px;font-weight:500;cursor:pointer;background:var(--paper);vertical-align:middle;font:inherit;color:inherit}
.slot.empty{color:var(--ink-soft);font-family:"DM Mono",monospace;font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.slot.on{border-color:var(--seal);background:color-mix(in srgb,var(--seal) 14%,var(--panel));box-shadow:0 0 0 3px color-mix(in srgb,var(--seal) 18%,transparent)}
.slot.empty.on{animation:breathe 1.6s ease-in-out infinite}
.slot.num{min-width:64px;font-family:"DM Mono",monospace;font-size:17px}
@keyframes breathe{0%,100%{box-shadow:0 0 0 3px color-mix(in srgb,var(--seal) 18%,transparent)}50%{box-shadow:0 0 0 7px color-mix(in srgb,var(--seal) 8%,transparent)}}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin:12px 0 4px}
.chip{font-family:inherit;font-size:14.5px;min-height:42px;border:1px solid var(--rule);background:var(--paper);color:var(--ink);padding:6px 13px;cursor:pointer}
.chip:hover{border-color:var(--ink-soft)}
.chip.used{opacity:.35}
.chip[aria-pressed="true"]{border-color:var(--seal);background:color-mix(in srgb,var(--seal) 12%,var(--panel))}
.chip.num{font-family:"DM Mono",monospace;font-size:16px;min-width:56px}
.equation{font-family:"DM Mono",monospace;font-size:19px;line-height:2.6;margin:8px 0}
.equation .tok{padding:0 4px}

.schemas{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:10px;margin:8px 0 4px}
.schema{border:1px solid var(--rule);background:var(--paper);padding:12px;cursor:pointer;text-align:left;font-family:inherit;color:var(--ink)}
.schema:hover{border-color:var(--ink-soft)}
.schema[aria-pressed="true"]{border-color:var(--seal);background:color-mix(in srgb,var(--seal) 10%,var(--panel))}
.schema .nm{font-family:"DM Mono",monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;display:block;margin-bottom:8px}
.schema .ln{display:block;font-size:13px;color:var(--ink-soft);margin-top:7px;line-height:1.4}
.bar{display:flex;height:24px;border:1px solid var(--ink);font-family:"DM Mono",monospace;font-size:10px}
.bar+.bar{margin-top:4px}
.bar span{display:flex;align-items:center;justify-content:center;overflow:hidden;white-space:nowrap;border-left:1px dashed var(--ink)}
.bar span:first-child{border-left:0}
.bar .fill{background:color-mix(in srgb,var(--jade) 38%,transparent)}
.bar .q{background:color-mix(in srgb,var(--seal) 24%,transparent)}
.whole{font-family:"DM Mono",monospace;font-size:10px;color:var(--ink-soft);text-align:center;border-top:1px solid var(--ink-soft);margin-top:4px;padding-top:2px}

.row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:8px 0}
input[type="text"],input[type="number"],input[type="password"],input[inputmode]{
  font-family:"DM Mono",monospace;font-size:18px;background:var(--paper);color:var(--ink);
  border:1px solid var(--rule);border-bottom:2px solid var(--seal);padding:9px 11px;width:150px;
}
input.wide{width:100%;max-width:360px;font-family:"Zen Kaku Gothic New",sans-serif}
input[data-mark="right"]{border-color:var(--jade);border-bottom-color:var(--jade)}
input[data-mark="wrong"]{border-color:var(--seal)}
.fix{font-family:"DM Mono",monospace;font-size:13px;color:var(--jade)}
input:focus-visible,button:focus-visible{outline:2px solid var(--jade);outline-offset:2px}

.act{font-family:"DM Mono",monospace;font-size:12px;letter-spacing:.14em;text-transform:uppercase;background:var(--ink);color:var(--paper);border:1px solid var(--ink);padding:12px 20px;cursor:pointer;margin-top:16px;min-height:44px}
.act:disabled{opacity:.35;cursor:not-allowed}
.act.ghost{background:transparent;color:var(--ink)}
.error{color:var(--seal);font-size:14px;margin-top:10px}

.verdict{margin-top:16px;border-top:1px solid var(--rule);padding-top:14px;font-size:15px;line-height:1.6}
.verdict .head{font-family:"DM Mono",monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase;margin-bottom:7px}
.verdict.good .head{color:var(--jade)}
.verdict.warn .head{color:var(--amber)}
.verdict.bad .head{color:var(--seal)}
.verdict ul{margin:8px 0 0;padding-left:18px}
.verdict li{margin-bottom:5px}

.seal{position:absolute;top:14px;right:16px;width:54px;height:54px;border:2.5px solid var(--seal);border-radius:50%;color:var(--seal);display:grid;place-items:center;transform:rotate(-11deg);font-family:"Dela Gothic One",sans-serif;font-size:20px;line-height:1;opacity:.9;animation:stamp .32s cubic-bezier(.2,1.5,.4,1)}
@keyframes stamp{from{transform:rotate(-11deg) scale(1.7);opacity:0}to{transform:rotate(-11deg) scale(1);opacity:.9}}
@media (prefers-reduced-motion:reduce){.seal,.slot.empty.on{animation:none}}

/* declarar */
.declare{border:1px dashed var(--rule);padding:14px 16px;margin:6px 0 18px;background:color-mix(in srgb,var(--panel) 70%,transparent)}
.declare p{margin:0 0 8px;font-size:14px;color:var(--ink-soft)}
.declare .chips{margin:0}
.declare .chip{font-size:13.5px}
.confirm{margin-top:10px;font-size:14px}

/* bitácora */
.log{border:1px solid var(--rule);background:var(--panel);padding:20px;margin-bottom:18px}
.log h2{margin-bottom:12px}
.logrow{display:grid;grid-template-columns:1fr auto;gap:14px;padding:7px 0;border-bottom:1px dashed var(--rule);font-size:14px}
.logrow:last-child{border-bottom:0}
.logrow .v{font-family:"DM Mono",monospace;font-variant-numeric:tabular-nums;font-size:13.5px;text-align:right}
.v.ok{color:var(--jade)} .v.no{color:var(--seal)}

/* consola */
.missions{display:grid;gap:10px}
.mission{display:grid;grid-template-columns:44px 1fr auto;gap:14px;align-items:center;border:1px solid var(--rule);background:var(--panel);padding:14px 16px;text-decoration:none;color:var(--ink)}
.mission .num{font-family:"Dela Gothic One",sans-serif;font-size:22px;color:var(--ink-soft)}
.mission .t{font-weight:700;font-size:16px}
.mission .w{font-family:"DM Mono",monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}
.pill{font-family:"DM Mono",monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;padding:4px 9px;border:1px solid var(--rule);white-space:nowrap}
.pill.done{border-color:var(--jade);color:var(--jade)}
.pill.next,.pill.in_progress{border-color:var(--seal);color:var(--seal)}
.pill.locked{color:var(--ink-soft)}
.mission[data-status="locked"]{opacity:.5;pointer-events:none}
.mission[data-status="next"],.mission[data-status="in_progress"]{border-color:var(--seal);box-shadow:inset 3px 0 0 var(--seal)}
.progress{height:8px;border:1px solid var(--ink);margin:10px 0 18px;background:var(--paper)}
.progress span{display:block;height:100%;background:var(--jade)}
.craft{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;margin-top:10px}
.craft div{border-top:2px solid var(--rule);padding-top:6px;font-size:13px;color:var(--ink-soft)}
.craft b{font-family:"Dela Gothic One",sans-serif;font-weight:400;color:var(--ink);font-size:15px;margin-right:6px}

/* login */
.login{max-width:420px;margin:12vh auto 0}
.login label{display:block;font-family:"DM Mono",monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin:14px 0 6px}
.login input{width:100%}

/* hoja del relato */
dialog{border:1px solid var(--rule);background:var(--panel);color:var(--ink);max-width:760px;width:calc(100% - 32px);padding:22px;max-height:85vh}
dialog::backdrop{background:rgba(0,0,0,.45)}

/* admin */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;margin-bottom:18px}
.kpi{border:1px solid var(--rule);background:var(--panel);padding:14px}
.kpi .l{font-family:"DM Mono",monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft)}
.kpi .n{font-family:"Dela Gothic One",sans-serif;font-size:26px;line-height:1.2}
.kpi .s{font-size:13px;color:var(--ink-soft)}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th,.tbl td{border-bottom:1px solid var(--rule);padding:8px 6px;text-align:left;vertical-align:top}
.tbl th{font-family:"DM Mono",monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);font-weight:400}
pre.ev{white-space:pre-wrap;font-size:12px;background:var(--paper);border:1px solid var(--rule);padding:10px;max-height:340px;overflow:auto}

@media (max-width:560px){
  .step{font-size:0} .step .k{font-size:15px;margin-bottom:0}
  .card{padding:17px}
  .mission{grid-template-columns:34px 1fr}
  .mission .pill{grid-column:2;justify-self:start}
}