:root{
  --font:"Bricolage Grotesque", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-tile:"Archivo", "Arial Black", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  --bg:#E8ECF5; --surface:#FFFFFF; --surface-2:#F3F5FB; --ink:#131F49; --muted:#4B5684;
  --line:#C7CEE3; --line-strong:#6B76A3;
  --letras:#C13229; --letras-ink:#FFFFFF; --letras-soft:#F9DFDB; --letras-text:#B02B22;
  --cifras:#F1B322; --cifras-ink:#131F49; --cifras-soft:#FCEFC9; --cifras-text:#7A5000;
  --studio:#1B2A6B; --studio-ink:#FFFFFF; --sel:#1B2A6B;
  --ok:#1C7448; --ok-soft:#D9F0E3; --bad:#B42318; --bad-soft:#FBE1DE; --bad-ink:#FFFFFF;
  --focus:#2F6BFF; --qr-bg:#FFFFFF; --qr-fg:#131F49; color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme]){
    --bg:#0D1636; --surface:#16224D; --surface-2:#1C2A5C; --ink:#EEF1FA; --muted:#AFB8D8;
    --line:#2E3D75; --line-strong:#7483C2;
    --letras:#C9362D; --letras-ink:#FFFFFF; --letras-soft:#47202B; --letras-text:#FF8F86;
    --cifras:#F4BE3A; --cifras-ink:#131F49; --cifras-soft:#45391A; --cifras-text:#F4BE3A;
    --studio:#3048B0; --studio-ink:#FFFFFF; --sel:#8FA6FF;
    --ok:#5BD08F; --ok-soft:#173D2C; --bad:#FF8A80; --bad-soft:#4A1E26; --bad-ink:#2A0A0A;
    --focus:#8FB0FF; --qr-bg:#EEF1FA; --qr-fg:#0D1636; color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0D1636; --surface:#16224D; --surface-2:#1C2A5C; --ink:#EEF1FA; --muted:#AFB8D8;
  --line:#2E3D75; --line-strong:#7483C2;
  --letras:#C9362D; --letras-ink:#FFFFFF; --letras-soft:#47202B; --letras-text:#FF8F86;
  --cifras:#F4BE3A; --cifras-ink:#131F49; --cifras-soft:#45391A; --cifras-text:#F4BE3A;
  --studio:#3048B0; --studio-ink:#FFFFFF; --sel:#8FA6FF;
  --ok:#5BD08F; --ok-soft:#173D2C; --bad:#FF8A80; --bad-soft:#4A1E26; --bad-ink:#2A0A0A;
  --focus:#8FB0FF; --qr-bg:#EEF1FA; --qr-fg:#0D1636; color-scheme:dark;
}
:root[data-theme="bosque"]{
  --bg:#E5EEE7; --surface:#FFFFFF; --surface-2:#F0F6F1; --ink:#12301E; --muted:#456050;
  --line:#C3D5C8; --line-strong:#5F7F6B;
  --letras:#B5392B; --letras-ink:#FFFFFF; --letras-soft:#F7DDD8; --letras-text:#A02B1E;
  --cifras:#E9B22C; --cifras-ink:#12301E; --cifras-soft:#FBEDC4; --cifras-text:#6E4A00;
  --studio:#1E5A3A; --studio-ink:#FFFFFF; --sel:#1E5A3A;
  --ok:#1C7448; --ok-soft:#D6EFDF; --bad:#B42318; --bad-soft:#FBE1DE; --bad-ink:#FFFFFF;
  --focus:#1F6BFF; --qr-bg:#FFFFFF; --qr-fg:#12301E; color-scheme:light;
}
:root[data-theme="atardecer"]{
  --bg:#F5EADC; --surface:#FFFBF5; --surface-2:#FAF0E3; --ink:#3A2113; --muted:#6B4B38;
  --line:#E3CDB5; --line-strong:#8A6A52;
  --letras:#B83A22; --letras-ink:#FFFFFF; --letras-soft:#F8DDD2; --letras-text:#A3301A;
  --cifras:#EDA826; --cifras-ink:#3A2113; --cifras-soft:#FBE9C2; --cifras-text:#7A4A00;
  --studio:#8A3B12; --studio-ink:#FFFFFF; --sel:#8A3B12;
  --ok:#1C7448; --ok-soft:#DCEFD9; --bad:#B42318; --bad-soft:#FBE1DE; --bad-ink:#FFFFFF;
  --focus:#1F5BD6; --qr-bg:#FFFFFF; --qr-fg:#3A2113; color-scheme:light;
}
:root[data-theme="violeta"]{
  --bg:#150F2B; --surface:#1F1740; --surface-2:#271E50; --ink:#F0ECFB; --muted:#B9B0DB;
  --line:#3A2F70; --line-strong:#8A7CD0;
  --letras:#C9362D; --letras-ink:#FFFFFF; --letras-soft:#47202B; --letras-text:#FF9A90;
  --cifras:#F4BE3A; --cifras-ink:#1A1030; --cifras-soft:#45391A; --cifras-text:#F4BE3A;
  --studio:#6A4FE0; --studio-ink:#FFFFFF; --sel:#B7A8FF;
  --ok:#5BD08F; --ok-soft:#173D2C; --bad:#FF8A80; --bad-soft:#4A1E26; --bad-ink:#2A0A0A;
  --focus:#B7A8FF; --qr-bg:#F0ECFB; --qr-fg:#150F2B; color-scheme:dark;
}
:root[data-theme="contraste"]{
  --bg:#000000; --surface:#000000; --surface-2:#1A1A1A; --ink:#FFFFFF; --muted:#E6E6E6;
  --line:#9A9A9A; --line-strong:#FFFFFF;
  --letras:#C8102E; --letras-ink:#FFFFFF; --letras-soft:#3A0A10; --letras-text:#FF8C98;
  --cifras:#FFD400; --cifras-ink:#000000; --cifras-soft:#3A3000; --cifras-text:#FFD400;
  --studio:#FFD400; --studio-ink:#000000; --sel:#FFD400;
  --ok:#5BE08F; --ok-soft:#0A3A20; --bad:#FF8C98; --bad-soft:#4A0A12; --bad-ink:#000000;
  --focus:#00E5FF; --qr-bg:#FFFFFF; --qr-fg:#000000; color-scheme:dark;
}
:root{box-sizing:border-box; padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);}
html{scroll-padding-top:env(safe-area-inset-top,0px);}
*,*::before,*::after{box-sizing:inherit}
html,body{margin:0}
body{background:var(--bg); color:var(--ink); font-family:var(--font); font-size:1.0625rem; line-height:1.5; -webkit-text-size-adjust:100%;}
img,svg{max-width:100%}
button,input{font:inherit; color:inherit}
:focus-visible{outline:3px solid var(--focus); outline-offset:3px}
[hidden]{display:none!important}
.sr-only{position:absolute!important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0}
.skip{position:absolute; left:12px; top:-60px; background:var(--studio); color:var(--studio-ink); padding:10px 14px; border-radius:10px; z-index:10; text-decoration:none; font-weight:700}
.skip:focus{top:calc(env(safe-area-inset-top,0px) + 8px)}

/* Cabecera */
.top{max-width:780px; margin:0 auto; padding:14px 18px 10px; display:flex; align-items:center; gap:12px; flex-wrap:wrap}
.brand{margin:0; font-size:1.3rem; font-weight:800; letter-spacing:-.01em; display:flex; align-items:center; gap:6px; line-height:1}
.brand .chip{display:inline-block; padding:7px 10px 8px; border-radius:8px; box-shadow:inset 0 -4px 0 rgba(0,0,0,.18)}
.brand .c{background:var(--cifras); color:var(--cifras-ink)}
.brand .l{background:var(--letras); color:var(--letras-ink)}
.brand .y{font-weight:500; color:var(--muted); font-size:1.05rem}
.top-actions{margin-left:auto; display:flex; gap:8px; flex-wrap:nowrap}
.btn.icon{width:40px; padding:0}
.btn.icon svg{display:block; width:22px; height:22px; max-width:none; flex:none}
.scores{list-style:none; margin:0; padding:0 18px 4px; max-width:780px; margin-inline:auto; display:flex; gap:8px; flex-wrap:wrap}
.scores li{display:flex; align-items:baseline; gap:8px; background:var(--surface); border:1px solid var(--line); border-radius:999px; padding:5px 12px 5px 14px; font-size:.95rem}
.scores li.turn{border-color:var(--sel); box-shadow:0 0 0 1px var(--sel)}
.scores .p{font-weight:800; font-variant-numeric:tabular-nums; font-size:1.05rem}

main{max-width:780px; margin:0 auto; padding:8px 18px 48px}
main:focus{outline:none}
h2{font-size:1.75rem; line-height:1.15; margin:10px 0 6px; letter-spacing:-.015em}
h2:focus{outline:none}
h3{font-size:1.2rem; margin:24px 0 8px}
p{margin:0 0 12px; max-width:62ch}
.lead{font-size:1.15rem; color:var(--muted)}
.hint{color:var(--muted); font-size:.98rem}

/* Botones */
.btn{appearance:none; border:2px solid transparent; border-radius:12px; min-height:48px; padding:0 20px; font-weight:700; font-size:1.02rem; cursor:pointer; display:inline-flex; align-items:center; justify-content:center; gap:8px; background:var(--surface); color:var(--ink); border-color:var(--line-strong); text-decoration:none}
.btn:hover{background:var(--surface-2)}
.btn.primary{background:var(--studio); color:var(--studio-ink); border-color:var(--studio)}
.btn.primary:hover{filter:brightness(1.12)}
.btn.small{min-height:40px; padding:0 14px; font-size:.95rem}
.btn.danger{background:var(--bad); color:var(--bad-ink); border-color:var(--bad)}
.btn[disabled]{opacity:.45; cursor:not-allowed}
.row{display:flex; flex-wrap:wrap; gap:10px; align-items:center}
.row.end{justify-content:flex-end}
.spacer{flex:1}

/* Formulario de inicio */
fieldset{border:0; padding:0; margin:0 0 22px}
legend{font-weight:800; font-size:1.05rem; margin-bottom:10px; padding:0}
.modes{display:grid; grid-template-columns:repeat(auto-fit, minmax(170px, 1fr)); gap:10px}
.mode input, .seg input{position:absolute; opacity:0; width:1px; height:1px; margin:0}
.mode label{display:block; height:100%; background:var(--surface); border:2px solid var(--line); border-radius:16px; padding:14px 16px; cursor:pointer}
.mode label strong{display:block; font-size:1.15rem}
.mode label span{color:var(--muted); font-size:.95rem; display:block; margin-top:2px}
.mode input:checked + label{border-color:var(--sel); box-shadow:inset 0 0 0 2px var(--sel); background:var(--surface-2)}
.mode input:focus-visible + label, .seg input:focus-visible + label{outline:3px solid var(--focus); outline-offset:3px}
.seg{display:flex; flex-wrap:wrap; gap:8px}
.seg label{display:inline-flex; align-items:center; min-height:44px; padding:6px 16px; background:var(--surface); border:2px solid var(--line); border-radius:999px; cursor:pointer; font-weight:600}
.seg input:checked + label{background:var(--studio); color:var(--studio-ink); border-color:var(--studio)}
.team-list{list-style:none; margin:0 0 10px; padding:0; display:grid; gap:8px}
.team-list li{display:flex; gap:8px; align-items:center}
.team-list input{flex:1; min-width:0}
.field label{display:block; font-weight:700; margin-bottom:6px}
input[type=text]{width:100%; min-height:48px; border:2px solid var(--line-strong); border-radius:12px; background:var(--surface); padding:8px 14px; font-size:1.1rem}
input[type=text]:focus-visible{outline:3px solid var(--focus); outline-offset:1px; border-color:var(--focus)}
.check{display:flex; align-items:center; gap:10px; min-height:44px; font-weight:600; cursor:pointer}
.check input{width:22px; height:22px; accent-color:var(--studio)}
details.rules{background:var(--surface); border:1px solid var(--line); border-radius:16px; padding:4px 18px; margin-top:26px}
details.rules summary{cursor:pointer; font-weight:800; min-height:48px; display:flex; align-items:center}
details.rules h3{margin-top:14px}
details.rules ul{padding-left:20px; margin:0 0 12px}
details.rules li{margin-bottom:6px; max-width:62ch}
.status{font-size:.95rem; color:var(--muted); margin-top:14px}

/* Ronda */
.round-head{display:flex; align-items:baseline; gap:12px; flex-wrap:wrap; margin-top:6px}
.round-head h2{margin:0; display:flex; align-items:baseline; gap:12px; flex-wrap:wrap}
.round-head .count{font-size:1rem}
.kind{display:inline-block; font-weight:800; padding:5px 12px 6px; border-radius:8px; font-size:1.05rem}
.kind.l{background:var(--letras); color:var(--letras-ink)}
.kind.c{background:var(--cifras); color:var(--cifras-ink)}
.count{color:var(--muted); font-weight:600}
.turn-msg{font-size:1.2rem; margin:18px 0 12px}
.pick{display:grid; grid-template-columns:repeat(4, 1fr); gap:10px; max-width:440px}
.pick.five{grid-template-columns:repeat(5, 1fr); max-width:520px}
.pick .btn{min-height:64px; font-size:1.6rem; font-weight:800}
.pick + .row{margin-top:12px}

.board{display:grid; grid-template-columns:auto 1fr; gap:18px; align-items:center; margin:16px 0 8px}
@media (max-width:600px){ .board{grid-template-columns:1fr; justify-items:center; gap:12px} }
.clock{position:relative; width:128px; height:128px; flex:none}
@media (max-width:600px){ .clock{width:96px; height:96px} .clock.free{width:auto; height:auto} }
.clock svg{width:100%; height:100%; transform:rotate(-90deg); display:block}
.clock .track{fill:var(--surface); stroke:var(--line); stroke-width:10}
.clock .arc{fill:none; stroke-width:10; stroke-linecap:round}
.round-l .clock .arc{stroke:var(--letras)}
.round-c .clock .arc{stroke:var(--cifras)}
.clock .num{position:absolute; inset:0; display:grid; place-items:center; font-weight:800; font-family:var(--font-tile); font-size:2.6rem; font-variant-numeric:tabular-nums; line-height:1}
@media (max-width:600px){ .clock .num{font-size:2rem} .clock.free .num{font-size:.98rem} }
.clock.low .num{color:var(--letras-text)}
.clock.free{width:auto; height:auto}
.clock.free svg{display:none}
.clock.free .num{position:static; display:inline-block; font-family:var(--font); font-size:.98rem; font-weight:700; color:var(--muted); background:var(--surface); border:1px solid var(--line); border-radius:999px; padding:8px 16px}
.clock-ctl{display:flex; gap:8px; justify-content:center; margin-top:8px}
.clock-col{display:flex; flex-direction:column; align-items:center}

.tiles{list-style:none; margin:0; padding:0; display:grid; gap:8px; width:100%}
.tiles.letters{grid-template-columns:repeat(5, minmax(0,1fr)); max-width:420px}
.tiles.numbers{grid-template-columns:repeat(3, minmax(0,1fr)); max-width:360px}
@media (min-width:601px){ .tiles.letters{grid-template-columns:repeat(5, minmax(0,1fr)); max-width:440px} .tiles.numbers{grid-template-columns:repeat(6, minmax(0,1fr)); max-width:none} }
.tile{appearance:none; position:relative; display:grid; place-items:center; width:100%; aspect-ratio:1/1.08; background:var(--surface); color:var(--ink); border:1px solid var(--line); border-radius:10px; font-weight:800; font-size:clamp(1.5rem, 7vw, 2.1rem); line-height:1; box-shadow:inset 0 -6px 0 var(--acc, var(--letras)); padding:0 0 6px; font-variant-numeric:tabular-nums; user-select:none; font-family:var(--font-tile)}
.tiles.numbers .tile{--acc:var(--cifras); font-size:clamp(1.4rem, 6.5vw, 1.9rem); aspect-ratio:1/.92}
button.tile{cursor:pointer}
button.tile:hover{background:var(--surface-2)}
.tile.used{opacity:.35; box-shadow:inset 0 -6px 0 var(--line)}
.tile.sel{background:var(--cifras-soft); border-color:var(--cifras-text); box-shadow:inset 0 -6px 0 var(--cifras), 0 0 0 2px var(--cifras-text)}
.tile.made{border-style:dashed; border-color:var(--line-strong)}
.tile.deal{animation:deal .32s cubic-bezier(.2,.8,.2,1.2) both}
@keyframes deal{from{transform:rotateX(90deg) translateY(-10px); opacity:0} to{transform:none; opacity:1}}
.target{display:flex; align-items:center; gap:14px; margin-top:12px}
.target .tile{--acc:var(--studio); width:auto; aspect-ratio:auto; min-width:150px; padding:10px 18px 16px; font-size:3rem; background:var(--cifras); color:var(--cifras-ink); border-color:transparent; box-shadow:inset 0 -8px 0 rgba(0,0,0,.2)}
.target span{font-weight:700; color:var(--muted)}
.board-main{width:100%; display:flex; flex-direction:column; align-items:flex-start}
@media (max-width:600px){ .board-main{align-items:center} .target{justify-content:center} }

.answer{margin-top:18px}
.word-row input, input.ans-input{font-family:var(--font-tile)!important; text-transform:uppercase; letter-spacing:.12em; font-weight:800; font-size:1.5rem}
.msg{margin:8px 0 12px; min-height:1.5em; font-weight:600}
.msg.bad{color:var(--bad)}
.msg.ok{color:var(--ok)}
.panel{background:var(--surface); border:1px solid var(--line); border-radius:16px; padding:16px 18px; margin:16px 0}
.panel h3{margin-top:0}

/* Constructor de operaciones */
.builder .b-tiles{margin-bottom:12px}
.ops{display:grid; grid-template-columns:repeat(4, minmax(0,1fr)); gap:8px; max-width:360px; margin-bottom:10px}
.ops .btn{min-height:56px; font-size:1.7rem; font-weight:800; padding:0; font-family:var(--font-tile)}
.ops .btn[aria-pressed="true"]{background:var(--studio); color:var(--studio-ink); border-color:var(--studio)}
.expr{font-weight:700; font-size:1.15rem; min-height:1.6em; margin:4px 0 4px; font-variant-numeric:tabular-nums}
.b-err:empty{min-height:0; margin:0}
.steps{margin:0 0 10px; padding-left:24px; font-variant-numeric:tabular-nums; font-size:1.1rem}
.steps li{margin-bottom:2px}
.current{font-weight:700; font-size:1.1rem}

/* Resultados */
.res{width:100%; border-collapse:collapse; margin:6px 0 4px; font-size:1rem}
.res th,.res td{text-align:left; padding:10px 8px; border-bottom:1px solid var(--line); vertical-align:top}
.res th{font-size:.92rem; color:var(--muted); font-weight:700}
.res tbody th{color:var(--ink); font-size:1rem}
.res td.pts{text-align:right; font-weight:800; font-size:1.25rem; font-variant-numeric:tabular-nums; white-space:nowrap}
.res th.pts{text-align:right}
.word{font-family:var(--font-tile); font-weight:800; letter-spacing:.06em; text-transform:uppercase; font-size:1.1rem}
.badge{display:inline-block; font-size:.88rem; font-weight:700; padding:2px 8px; border-radius:6px; margin-top:4px}
.badge.ok{background:var(--ok-soft); color:var(--ok)}
.badge.bad{background:var(--bad-soft); color:var(--bad)}
.badge.neutral{background:var(--surface-2); color:var(--muted)}
.res .actions{display:flex; gap:8px; flex-wrap:wrap; margin-top:8px}
.res .ops-list{margin:4px 0 0; padding-left:18px; color:var(--muted); font-size:.95rem; font-variant-numeric:tabular-nums}
.best-list{list-style:none; padding:0; margin:8px 0 0; display:flex; flex-wrap:wrap; gap:8px}
.best-list a{display:inline-block; font-family:var(--font-tile); font-weight:800; letter-spacing:.06em; text-transform:uppercase; padding:8px 12px; border-radius:10px; background:var(--letras-soft); color:var(--ink); text-decoration:none; border:1px solid transparent}
.best-list a:hover{border-color:var(--letras)}
.sol-steps{margin:8px 0; padding-left:24px; font-size:1.15rem; font-weight:700; font-variant-numeric:tabular-nums}
.link{color:var(--ink); font-weight:700}
.next-row{margin-top:22px}

/* Final */
.ranking{list-style:none; padding:0; margin:12px 0 18px; display:grid; gap:8px}
.ranking li{display:flex; align-items:center; gap:14px; background:var(--surface); border:1px solid var(--line); border-radius:14px; padding:12px 16px}
.ranking .pos{font-weight:800; font-size:1.3rem; width:1.6em; color:var(--muted)}
.ranking .nm{flex:1; font-weight:700; font-size:1.1rem}
.ranking .p{font-weight:800; font-size:1.5rem; font-variant-numeric:tabular-nums}
.ranking li.win{border-color:var(--sel); box-shadow:inset 0 0 0 1px var(--sel)}
.table-wrap{overflow-x:auto; margin:8px 0 18px; border:1px solid var(--line); border-radius:14px; background:var(--surface)}
.hist{border-collapse:collapse; width:100%; font-size:.98rem}
.hist th,.hist td{padding:9px 12px; border-bottom:1px solid var(--line); text-align:left; white-space:nowrap}
.hist td.n, .hist th.n{text-align:right; font-variant-numeric:tabular-nums}
.hist tr:last-child td{border-bottom:0}
@media (max-width:600px){ .hist{font-size:.86rem} .hist th,.hist td{white-space:normal; padding:8px 5px} .hist th:first-child{white-space:nowrap} .hist .tag{font-size:.78rem; padding:1px 5px} }
.hist .tag{font-weight:800; padding:1px 7px; border-radius:6px; font-size:.85rem}
.hist .tag.l{background:var(--letras); color:var(--letras-ink)}
.hist .tag.c{background:var(--cifras); color:var(--cifras-ink)}

dialog{border:1px solid var(--line); border-radius:18px; padding:22px; max-width:min(92vw, 420px); background:var(--surface); color:var(--ink); box-shadow:0 20px 60px rgba(0,0,0,.35)}
dialog::backdrop{background:rgba(8,12,30,.55)}
dialog h2{font-size:1.4rem; margin-top:0}

/* Varios móviles */
.room-code{display:flex; gap:8px; margin:14px 0 12px}
.room-code .tile{width:64px; aspect-ratio:1/1.1; font-size:2.2rem; --acc:var(--studio)}
.plist{list-style:none; margin:8px 0 16px; padding:0; display:grid; gap:8px}
.plist li{display:flex; align-items:center; gap:10px; flex-wrap:wrap; background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:10px 14px}
.plist .nm{font-weight:700; font-size:1.05rem; margin-right:auto}
.scores li.off{opacity:.55}
.btn[aria-disabled="true"]{opacity:.5}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms!important; animation-iteration-count:1!important; transition-duration:.001ms!important}
}

/* Pantalla grande (tele, portátil o proyector): el anfitrión enseña el tablero y no juega */
body.pantalla{font-size:clamp(1.15rem, 1.7vw, 2rem)}
body.pantalla .top, body.pantalla .scores, body.pantalla main{max-width:min(1400px, 94vw)}
body.pantalla main{padding-bottom:64px}
body.pantalla h2{font-size:clamp(2rem, 3.4vw, 3.6rem)}
body.pantalla p{max-width:none}
body.pantalla .btn{min-height:3.2rem; font-size:1em; padding:0 1.4em}
body.pantalla .btn.small{min-height:2.6rem; font-size:.85em}
body.pantalla :focus-visible{outline-width:5px; outline-offset:5px}
body.pantalla .scores li{font-size:1em; padding:.3em .9em .3em 1em}
body.pantalla .scores .p{font-size:1.2em}
body.pantalla .kind{font-size:1.1em}
body.pantalla .tiles.letters{grid-template-columns:repeat(5, minmax(0,1fr)); max-width:min(48vw, 800px); gap:1vw}
body.pantalla .round-head .count{font-size:1.1em}
body.pantalla .tiles.numbers{grid-template-columns:repeat(6, minmax(0,1fr)); max-width:min(80vw, 1200px); gap:1vw}
body.pantalla .tile{font-size:clamp(2rem, 4.4vw, 5.2rem); border-radius:14px; box-shadow:inset 0 -10px 0 var(--acc, var(--letras))}
body.pantalla .tiles.numbers .tile{font-size:clamp(2rem, 4.6vw, 4.8rem)}
body.pantalla .target .tile{font-size:clamp(3rem, 7vw, 7rem); min-width:0; padding:.1em .5em .25em}
body.pantalla .clock{width:clamp(150px, 15vw, 280px); height:clamp(150px, 15vw, 280px)}
body.pantalla .clock .num{font-size:clamp(3rem, 6vw, 6rem)}
body.pantalla .clock.free{width:auto; height:auto}
body.pantalla .clock.free .num{font-size:1em}
body.pantalla .board{gap:3vw}
body.pantalla .turn-msg{font-size:1.6em}
body.pantalla .pick{max-width:none}
body.pantalla .pick .btn{min-height:4rem; font-size:2rem}
body.pantalla .res{font-size:1.1em}
body.pantalla .word{font-size:1.3em}
body.pantalla .ranking .p{font-size:1.8em}
body.pantalla .hist{font-size:1em}
body.pantalla .panel{padding:1em 1.4em}
body.pantalla .room-code .tile{width:clamp(80px, 8vw, 150px); font-size:clamp(3rem, 5.5vw, 6rem)}
.lobby-screen{display:grid; grid-template-columns:minmax(0,1fr) minmax(220px, 30vw); gap:4vw; align-items:start}
.lobby-qr{background:var(--qr-bg); padding:16px; border-radius:22px; border:3px solid var(--sel); box-shadow:0 10px 34px rgba(0,0,0,.28); align-self:center}
:root[data-theme="dark"] .lobby-qr, :root[data-theme="violeta"] .lobby-qr, :root[data-theme="contraste"] .lobby-qr{box-shadow:0 0 0 4px var(--line), 0 10px 40px rgba(0,0,0,.55)}
@media (prefers-color-scheme: dark){ :root:not([data-theme]) .lobby-qr{box-shadow:0 0 0 4px var(--line), 0 10px 40px rgba(0,0,0,.55)} }
.lobby-qr .qr{display:block; width:100%; height:auto; border-radius:8px}
.qr .qr-bg{fill:var(--qr-bg)}
.qr .qr-fg{fill:var(--qr-fg)}
@media (max-width:760px){ .lobby-screen{grid-template-columns:1fr} .lobby-qr{max-width:320px} }

/* Cómo jugar */
.btn.icon{font-weight:800; font-size:1.1rem}
dialog#dlg-help{padding:0; max-width:min(94vw, 680px); width:100%; max-height:88vh}
dialog#dlg-help[open]{display:flex; flex-direction:column}
.help-head{display:flex; align-items:center; justify-content:space-between; gap:12px; padding:16px 22px 10px}
.help-head h2{margin:0}
.help-body{overflow:auto; padding:0 22px 22px; flex:1}
#help-panel{outline-offset:4px}
.tabs{display:flex; gap:8px; flex-wrap:wrap; margin:4px 0 6px}
.tab{appearance:none; min-height:44px; padding:6px 13px; font-size:.97rem; background:var(--surface); border:2px solid var(--line); border-radius:999px; cursor:pointer; font-weight:700}
.tab[aria-selected="true"]{background:var(--studio); color:var(--studio-ink); border-color:var(--studio)}
#help-panel h3{margin:18px 0 6px; font-size:1.1rem}
.help-steps{margin:0 0 10px; padding-left:22px}
.help-steps li, .help-list li{margin-bottom:6px; max-width:62ch}
.help-list{margin:0 0 10px; padding-left:20px}
.help-example{background:var(--surface-2); border:1px solid var(--line); border-radius:14px; padding:12px 16px 4px; margin:12px 0}
.help-example .sol-steps{margin:6px 0 10px; font-size:1.05rem}
.help-cap{margin:0 0 6px; font-size:.85rem; font-weight:800; color:var(--muted); text-transform:uppercase; letter-spacing:.06em}
.demo-row{list-style:none; margin:6px 0 10px; padding:0; display:flex; flex-wrap:wrap; gap:6px}
.demo-row .tile{width:42px; aspect-ratio:1/1.08; font-size:1.3rem; padding:0 0 4px; box-shadow:inset 0 -5px 0 var(--letras)}
.demo-target .demo-row .tile{width:auto; min-width:44px; height:46px; aspect-ratio:auto; padding:0 10px 4px; box-shadow:inset 0 -5px 0 var(--cifras)}
.demo-goal{display:flex; align-items:center; gap:10px; margin:0 0 10px; font-weight:700; color:var(--muted)}
.demo-goal .tile{--acc:var(--studio); width:auto; aspect-ratio:auto; padding:6px 14px 10px; font-size:1.7rem; background:var(--cifras); color:var(--cifras-ink); border-color:transparent; box-shadow:inset 0 -6px 0 rgba(0,0,0,.2)}
kbd{font-family:var(--font-tile); font-weight:800; font-size:.9em; padding:1px 7px; border:1px solid var(--line-strong); border-bottom-width:3px; border-radius:6px; background:var(--surface)}
.panel.intro{display:flex; align-items:center; justify-content:space-between; gap:14px 20px; flex-wrap:wrap}
.panel.intro p{margin:0}
body.pantalla #help-btn{display:none}
@media (max-width:480px){ .demo-target .demo-row .tile{min-width:38px; padding:0 6px 4px; font-size:1.15rem} .demo-target .demo-row{gap:5px} }

/* Elegir tema */
dialog#dlg-theme{padding:0; max-width:min(94vw, 460px); width:100%; max-height:88vh}
dialog#dlg-theme[open]{display:flex; flex-direction:column}
.theme-list{margin:0}
.theme-opt{margin-bottom:8px}
.theme-opt input{position:absolute; opacity:0; width:1px; height:1px; margin:0}
.theme-opt label{display:flex; align-items:center; gap:14px; background:var(--surface); border:2px solid var(--line); border-radius:14px; padding:10px 14px; cursor:pointer}
.theme-opt label:hover{background:var(--surface-2)}
.theme-opt input:checked + label{border-color:var(--sel); box-shadow:inset 0 0 0 2px var(--sel); background:var(--surface-2)}
.theme-opt input:focus-visible + label{outline:3px solid var(--focus); outline-offset:3px}
.theme-opt .sw{display:flex; flex:none; border-radius:8px; overflow:hidden; border:1px solid rgba(128,128,128,.55)}
.theme-opt .sw i{display:block; width:18px; height:34px}
.theme-opt .tx{display:flex; flex-direction:column; min-width:0}
.theme-opt strong{font-size:1.05rem}
.theme-opt small{color:var(--muted); font-size:.9rem; line-height:1.3}