:root{
  --bg:#0e0f12; --panel:#17191f; --panel2:#1f222a; --line:#2b2f3a;
  --text:#e9eaee; --muted:#9aa0ad; --acc:#ffb020; --acc2:#ff5a36; --ok:#3ccf7a;
  --r:14px;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);
  font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--acc);text-decoration:none} a:hover{text-decoration:underline}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}

/* header */
header{border-bottom:1px solid var(--line);background:rgba(14,15,18,.9);position:sticky;top:0;z-index:10;backdrop-filter:blur(6px)}
.logo{font-weight:900;letter-spacing:.5px;font-size:20px;color:var(--text)}
.logo span{color:var(--acc)}

/* hero */
.hero{padding:64px 0 40px}
.hero h1{font-size:clamp(32px,5vw,54px);line-height:1.1;margin:0 0 14px;font-weight:900}
.hero h1 em{font-style:normal;color:var(--acc)}
.hero p{color:var(--muted);font-size:18px;max-width:640px;margin:0 0 24px}
.btn{display:inline-block;padding:12px 20px;border-radius:10px;font-weight:700;background:var(--acc);color:#111;border:0;cursor:pointer;font-size:15px}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line);margin-left:8px}

/* grid & cards */
.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.card h2,.card h3{margin:0 0 8px}
.card p{color:var(--muted);margin:0}
section{padding:24px 0}
.section-title{font-size:24px;margin:0 0 16px}

/* wipe */
.wipe{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.count{display:flex;gap:10px}
.count div{background:var(--panel2);border:1px solid var(--line);border-radius:10px;padding:10px 14px;text-align:center;min-width:72px}
.count b{display:block;font-size:28px;color:var(--acc);font-variant-numeric:tabular-nums}
.count small{color:var(--muted);font-size:12px;text-transform:uppercase}

/* news */
.news{list-style:none;padding:0;margin:0}
.news li{border-left:3px solid var(--acc);padding:6px 0 6px 14px;margin-bottom:14px}
.news time{color:var(--muted);font-size:13px}
.news strong{display:block}
.news p{margin:2px 0 0;color:var(--muted)}

/* table / calc */
.notice{background:#3a2a0b;border:1px solid #7a5512;color:#ffd58a;padding:12px 16px;border-radius:10px;margin-bottom:18px}
.controls{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
select,input{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:9px 11px;font:inherit}
table{width:100%;border-collapse:collapse;background:var(--panel);border-radius:var(--r);overflow:hidden}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--panel2);color:var(--muted);font-size:13px;text-transform:uppercase;cursor:pointer;user-select:none}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tr.best td{background:rgba(255,176,32,.08)}
.tag{font-size:12px;padding:2px 8px;border-radius:99px;background:var(--panel2);border:1px solid var(--line)}
.big{font-size:20px;font-weight:800;color:var(--acc)}
.form{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));align-items:end}
.form label{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:4px}
.result{margin-top:14px;font-size:18px}
.tablewrap{overflow-x:auto}

/* article */
article{max-width:760px}
article h1{font-size:clamp(28px,4vw,42px);line-height:1.15}
article h2{margin-top:36px}
.todo{background:#1c2433;border:1px dashed #4a6aa0;color:#b9cdf0;padding:12px 16px;border-radius:10px;margin:14px 0}
.cta{background:linear-gradient(135deg,#2a1a08,#1a1410);border:1px solid #6b4a12;border-radius:var(--r);padding:22px;margin:30px 0}
.cta h3{margin:0 0 6px}

footer{border-top:1px solid var(--line);margin-top:48px;padding:24px 0;color:var(--muted);font-size:14px}



/* calculadora */
.calc-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(420px,1fr))}
@media (max-width:520px){.calc-grid{grid-template-columns:1fr}}
.act-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px}
.act-head h3{margin:0;font-size:18px}
.act>p{margin-bottom:14px;font-size:14px}
.act .result{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px;font-size:15px}
.act .result>div{background:var(--panel2);border-radius:10px;padding:10px 12px}
.act .result small{display:block;color:var(--muted);font-size:12px}
.act.best{border-color:var(--acc);box-shadow:0 0 0 1px var(--acc) inset}
.src{font-size:12px!important;margin-top:10px!important;font-style:italic}
.pos{color:var(--ok);font-weight:700}.neg{color:var(--acc2);font-weight:700}
.ranking{list-style:none;padding:0;margin:0}.ranking li{padding:6px 0;border-bottom:1px solid var(--line)}
.ranking .big{font-size:16px}
.toolbar{display:flex;gap:14px;align-items:end;flex-wrap:wrap;margin-bottom:18px}
.toolbar label{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:4px}
.muted{color:var(--muted)}
ul.clean{padding-left:20px}ul.clean li{margin-bottom:6px}

/* ---- cabecera v2 ---- */
.logo{white-space:nowrap}
.top{display:flex;align-items:center;gap:18px;height:62px}
.search{position:relative;flex:1;max-width:420px}
.search input{width:100%;padding:9px 14px;border-radius:99px}
.search-res{position:absolute;top:44px;left:0;right:0;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 12px 30px rgba(0,0,0,.5);z-index:20}
.search-res a{display:block;padding:10px 14px;color:var(--text);border-bottom:1px solid var(--line)}
.search-res a:hover{background:var(--panel2);text-decoration:none}
.search-res small{display:block;color:var(--muted)}
.search-res a.all{color:var(--acc);font-weight:700}
.search-res .none{padding:12px 14px;color:var(--muted)}
.tools-nav{margin-left:auto;display:flex;gap:16px;white-space:nowrap}
.tools-nav a{color:var(--text);font-weight:700}
.tools-nav a.on{color:var(--acc)}
.cats{display:flex;gap:4px;overflow-x:auto;white-space:nowrap;scrollbar-width:none;padding-bottom:8px}
.cats a{color:var(--muted);font-weight:600;font-size:14px;padding:6px 10px;border-radius:8px}
.cats a:hover{color:var(--text);background:var(--panel);text-decoration:none}
.cats a.on{color:#111;background:var(--acc)}
.big-search{width:100%;max-width:640px;font-size:18px;padding:14px 18px;border-radius:12px}
@media (max-width:760px){
  .top{flex-wrap:wrap;height:auto;padding-top:10px;gap:10px}
  .search{order:3;flex-basis:100%;max-width:none}
  .tools-nav{gap:12px;font-size:14px}
  .btn.ghost{margin:8px 0 0}
}
/* ---- artículos ---- */
.crumbs{font-size:13px;color:var(--muted);padding-top:18px}
.crumbs a{color:var(--muted)} .crumbs span{margin:0 6px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start;padding-top:10px}
@media (max-width:960px){.article-layout{grid-template-columns:1fr}.side{display:none}}
article{max-width:none}
article h1{margin:10px 0 6px}
article h2{margin-top:36px;scroll-margin-top:120px}
article h3{scroll-margin-top:120px}
article p,article li{color:#d4d6dc}
.meta{color:var(--muted);font-size:14px;margin-top:0}
.toc{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:18px 0}
.toc ol{margin:8px 0 0;padding-left:20px}.toc li{margin:3px 0}
.tip{background:#1c2433;border-left:3px solid #5b8def;color:#c9d8f5;padding:12px 16px;border-radius:8px;margin:16px 0}
.side{position:sticky;top:130px;display:grid;gap:16px}
.side .card{padding:16px}.side ul{margin:8px 0 0;padding-left:18px;font-size:14px}
.side li{margin:5px 0}
.faq details{border-bottom:1px solid var(--line);padding:12px 0}
.faq summary{cursor:pointer;font-weight:700}
.faq details p{margin:8px 0 0;color:var(--muted)}
.prevnext{display:flex;justify-content:space-between;gap:12px;margin-top:20px;font-weight:600}
.prevnext .next{text-align:right;margin-left:auto}
code{background:var(--panel2);padding:1px 6px;border-radius:5px}
/* ---- portada / categorías ---- */
.small-hero{padding:24px 0 20px}
.small{font-size:13px}
a.card{color:var(--text);display:block;transition:border-color .15s,transform .15s}
a.card:hover{border-color:var(--acc);text-decoration:none;transform:translateY(-2px)}
a.card .tag{display:inline-block;margin-bottom:8px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media (max-width:860px){.two-col{grid-template-columns:1fr}}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.foot h4{color:var(--text);margin:0 0 8px}.foot ul{list-style:none;padding:0;margin:0 0 16px}.foot li{margin:4px 0}
.foot a{color:var(--muted)}
@media (max-width:760px){.foot{grid-template-columns:1fr}}