:root{--bg:#fffaf0;--card:#fff;--ink:#1f2a44;--mut:#5b6785;--a:#ff6b4a;--b:#2e86ff;--c:#ffc93c;--ok:#2bb673;--line:#e8e1d0}
@media(prefers-color-scheme:dark){:root{--bg:#121a2e;--card:#1c2742;--ink:#f1f3fa;--mut:#a9b3cf;--line:#2c3a5e}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 "Trebuchet MS",system-ui,sans-serif}
.w{max-width:960px;margin:0 auto;padding:0 18px}
header{position:sticky;top:0;background:var(--bg);border-bottom:2px solid var(--line);z-index:5}
header .w{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap}
.logo{font-weight:900;font-size:1.5rem;color:var(--a);text-decoration:none}.logo span{color:var(--b)}
nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}nav a{color:var(--ink);text-decoration:none;font-weight:700;font-size:.95rem}
.lang{border:2px solid var(--b);background:none;color:var(--b);border-radius:20px;padding:4px 12px;font-weight:800;cursor:pointer}
.hero{text-align:center;padding:40px 0 20px}.hero h1{font-size:clamp(2rem,6vw,3.2rem);line-height:1.15;margin:0 0 12px}.hero p{color:var(--mut);max-width:560px;margin:0 auto 20px}
.btn{display:inline-block;background:var(--a);color:#fff;border:0;border-radius:26px;padding:10px 22px;font-weight:800;font-size:1rem;cursor:pointer;text-decoration:none;margin:4px 4px 4px 0}
.btn.b{background:var(--b)}h1,h2{margin:26px 0 12px}
.card{background:var(--card);border:2px solid var(--line);border-radius:18px;padding:18px;color:var(--ink);text-decoration:none;display:block}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.ad{margin:26px 0;min-height:90px;border:2px dashed var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--mut);font-size:.8rem}
.mem{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;max-width:380px;margin:12px 0}
.mem button{aspect-ratio:1;font-size:2rem;border-radius:14px;border:2px solid var(--b);background:var(--b);color:#fff;cursor:pointer}
.mem .up{background:var(--card);color:var(--ink)}.mem .ok{background:var(--ok);border-color:var(--ok);color:#fff}
.opts{display:grid;gap:8px;margin-top:10px}.opts button{text-align:left;padding:10px 14px;border-radius:12px;border:2px solid var(--line);background:var(--card);color:var(--ink);font:inherit;cursor:pointer}
.opts .good{background:var(--ok);color:#fff}.opts .bad{background:var(--a);color:#fff}
details{margin-bottom:10px}summary{cursor:pointer;font-weight:800}
.books{background:linear-gradient(135deg,var(--c),var(--a));color:#1f2a44;border-radius:18px;padding:22px;text-align:center}.books .btn{background:#1f2a44}
.sc{font-weight:800;color:var(--ok)}
footer{margin:44px 0 20px;border-top:2px solid var(--line);padding-top:18px;color:var(--mut);font-size:.88rem;text-align:center}footer a{color:var(--mut);margin:0 8px}
#ck{position:fixed;left:12px;right:12px;bottom:12px;background:var(--card);border:2px solid var(--line);border-radius:14px;padding:12px 16px;font-size:.85rem;display:none;gap:10px;align-items:center;justify-content:space-between;z-index:9;flex-wrap:wrap}
.tool textarea,.tool select{font:inherit;padding:8px;border-radius:10px;border:2px solid var(--line);background:var(--card);color:var(--ink);width:100%}
.tool label{font-weight:700;display:inline-block;margin:8px 12px 4px 0}.tool select{width:auto}
table.g{border-collapse:collapse;margin:14px auto;background:#fff;color:#000}
table.g td{border:1px solid #bbb;width:34px;height:34px;text-align:center;font:700 18px monospace;padding:0}
table.g td.hl{background:#ffd966}
table.s td{border:1px solid #999;width:42px;height:42px}table.s td.br{border-right:3px solid #000}table.s td.bb{border-bottom:3px solid #000}
table.s{border:3px solid #000}table.s input{width:100%;height:100%;border:0;text-align:center;font:700 20px monospace;background:none;color:#0645ad;padding:0}
table.s input[readonly]{color:#000}table.s input.wr{background:#ffc9c0}
.wl{display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;font-weight:700}
@media print{header,footer,.ad,#ck,.noprint{display:none!important}body{background:#fff;color:#000}.card{border:0}}
:root{box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
.lang{text-decoration:none;display:inline-block}.crumb{font-size:.85rem;color:var(--mut)}.crumb a{color:var(--mut)}
.art h4{margin:24px 0 6px;font-size:1.1rem}.art p{max-width:68ch}
.fig{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px;background:linear-gradient(135deg,rgba(46,134,255,.14),rgba(255,201,60,.22));border-radius:14px;padding:14px;margin:8px 0}
.st{text-align:center;width:96px}.st span{font-size:2.6rem;display:block;line-height:1.2}.st small{font-weight:700;font-size:.78rem;line-height:1.2;display:block}
.fig b{color:var(--a);font-size:1.3rem}.fact{background:rgba(255,201,60,.28);border-radius:10px;padding:8px 12px;font-weight:700}
.quote{text-align:center;font-style:italic;font-size:1.2rem;color:var(--a);font-weight:700;margin:20px 0}
.bk{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.bkc{text-align:center;transition:transform .2s}.bkc:hover{transform:translateY(-4px)}
.cov{aspect-ratio:3/4;max-width:190px;margin:0 auto 14px;border-radius:10px 18px 18px 10px;background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;box-shadow:6px 6px 0 rgba(0,0,0,.18),inset 8px 0 0 rgba(0,0,0,.15)}
.cov span{font-size:2.4rem}.cov b{font-size:1.8rem;line-height:1.1}.cov small{font-weight:800;letter-spacing:2px;text-transform:uppercase}
table.wsg{border-collapse:collapse;margin:14px auto;background:#fff;color:#000;user-select:none;-webkit-user-select:none}
table.wsg td{width:var(--c);height:var(--c);text-align:center;font:700 calc(var(--c)*.5) monospace;border:1px solid #ccc;cursor:pointer;padding:0}
table.wsg td.sel{background:#ffd966}table.wsg td.fd{background:#8fd9a8}.wl .done{text-decoration:line-through;color:var(--ok)}
.ctl{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:12px 0}.ctl label{margin:0}.ctl select{font:inherit;padding:8px;border-radius:10px;border:2px solid var(--line);background:var(--card);color:var(--ink)}
table.g.s td{width:var(--c,42px);height:var(--c,42px)}table.g.s input{font-size:calc(var(--c,42px)*.5)}
[hidden]{display:none!important}
/* ===== Nuevo diseño: limpio, tipografía grande, acento violeta ===== */
:root{--bg:#fff;--card:#fff;--ink:#0d0d17;--mut:#5f6b85;--a:#6d5ef0;--b:#6d5ef0;--ok:#16a34a;--line:#ebe9f5;--pill:#ecebff;--pilltx:#3730a3}
@media(prefers-color-scheme:dark){:root{--bg:#0f1020;--card:#171830;--ink:#f3f3fb;--mut:#a5abc4;--line:#262847;--pill:#25274d;--pilltx:#c7c9ff}}
body{font:18px/1.75 Inter,-apple-system,"Segoe UI",system-ui,Roboto,sans-serif;-webkit-font-smoothing:antialiased}
.w{max-width:760px}
header{border-bottom:1px solid var(--line)}
header .w{padding-top:14px;padding-bottom:14px}
.logo{color:var(--ink);font-weight:800;letter-spacing:-.02em;font-size:1.45rem}.logo span{color:var(--a)}
nav a{font-weight:600;color:var(--ink)}
.lang{border:1.5px solid var(--line);color:var(--ink);padding:5px 12px;font-weight:700}
h1{font-size:clamp(2.2rem,7vw,3.7rem);line-height:1.06;font-weight:800;letter-spacing:-.025em;margin:.5em 0 .4em}
h2{font-size:1.6rem;line-height:1.2;font-weight:800;letter-spacing:-.015em;margin:2em 0 .6em}
h3{font-weight:700}.art h4{font-size:1.2rem;font-weight:800;margin:1.8em 0 .3em}
.hero{padding:56px 0 20px;text-align:left}.hero p{margin:0 0 22px;max-width:560px}
.btn{background:var(--a);border-radius:999px;padding:12px 26px;font-weight:700}
.card{border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 1px 2px rgba(30,30,80,.04)}
a.card:hover{border-color:var(--a)}
.crumb{font-size:1rem;color:var(--mut);margin:34px 0 0}.crumb a{color:var(--ink);font-weight:700;text-decoration:none}.crumb span{color:var(--mut)}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}.tag{background:var(--pill);color:var(--pilltx);font-weight:700;padding:9px 18px;border-radius:999px;font-size:.95rem}
.art-hero{border-radius:24px;aspect-ratio:16/8;max-height:300px;display:flex;align-items:center;justify-content:center;margin:0 0 28px;border:1px solid var(--line)}.art-hero span{font-size:clamp(4rem,16vw,7rem);filter:drop-shadow(0 6px 10px rgba(60,40,120,.18))}
.fig{background:linear-gradient(135deg,#efecff,#fff4d6);border-radius:20px}
.fact{background:#fff6d9;color:#3b2f00;border-radius:14px}
.art p,.art li{font-size:1.08rem}.art a{color:var(--a);font-weight:600}
.quote{color:var(--a)}
footer{border-top:1px solid var(--line)}
.cov-img{display:block;width:100%;max-width:220px;height:auto;margin:0 auto 14px;border-radius:12px;box-shadow:0 8px 24px rgba(30,30,80,.18)}