:root{
  --bg:#f7f8fa; --surface:#ffffff; --text:#1c2230; --muted:#5b6475; --line:#e3e6ec;
  --brand:#0f6e5c; --brand-soft:#e3f2ee; --accent:#e0a82e; --ss:#6d7fcc; --irpf:#d9694f;
  --radius:12px; --max:1080px; --on-brand:#ffffff;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#11151c; --surface:#1a2029; --text:#e8ebf0; --muted:#a3acbb; --line:#2c3441;
    --brand:#3fbf9f; --brand-soft:#1c3530; --ss:#8f9fe6; --irpf:#ec8a72; --on-brand:#06201a; }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--brand)}
img{max-width:100%;height:auto}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}

/* Cabecera */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.logo{font-weight:800;font-size:1.2rem;text-decoration:none;color:var(--text);display:flex;align-items:center;gap:8px}
.logo span{color:var(--brand)}
.site-header .wrap{flex-wrap:nowrap}

/* Menú desplegable: botón con las tres barras del logotipo, que se convierten en una X al abrir */
.menu{position:relative;order:2;margin-left:auto}
.menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:9px;padding:8px 13px;border-radius:10px;background:var(--brand);color:var(--on-brand);font-weight:700;font-size:.95rem;user-select:none}
.menu summary::-webkit-details-marker{display:none}
.menu summary:hover{filter:brightness(1.08)}
.burger{position:relative;display:inline-block;width:18px;height:14px}
.burger i{position:absolute;left:0;height:2.5px;border-radius:2px;background:currentColor;transition:transform .25s,opacity .2s,top .25s}
.burger i:nth-child(1){top:0;width:18px}
.burger i:nth-child(2){top:5.75px;width:11px}
.burger i:nth-child(3){top:11.5px;width:18px}
.menu[open] .burger i:nth-child(1){top:5.75px;transform:rotate(45deg)}
.menu[open] .burger i:nth-child(2){opacity:0}
.menu[open] .burger i:nth-child(3){top:5.75px;transform:rotate(-45deg)}
.menu-panel{position:absolute;right:0;top:calc(100% + 10px);z-index:30;width:min(560px,calc(100vw - 32px));display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 40px rgba(0,0,0,.16);animation:menuIn .18s ease-out}
@keyframes menuIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.menu-panel a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;text-decoration:none;color:var(--text)}
.menu-panel a b{display:block;font-size:.98rem}
.menu-panel a small{display:block;color:var(--muted);font-size:.82rem;line-height:1.35}
.mi{flex:0 0 42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand)}
.menu-panel a:hover{background:var(--bg)}
.menu-panel a[aria-current=page]{background:var(--brand-soft)}
.menu-panel a[aria-current=page] .mi{background:var(--brand);color:var(--on-brand)}
.menu-panel a.menu-search{grid-column:1/-1;justify-content:center;gap:8px;border:1px dashed var(--line);color:var(--muted);font-size:.92rem}
.menu-panel a.menu-search:hover{border-color:var(--brand);color:var(--brand);background:none}
@media (max-width:560px){.menu-panel{position:fixed;left:16px;right:16px;top:70px;width:auto;grid-template-columns:1fr;max-height:calc(100vh - 90px);overflow-y:auto}}
@media (max-width:380px){.menu-txt{display:none}.logo{font-size:1.05rem}}

/* Selector de idioma */
.lang{position:relative;order:3;margin-left:28px}
@media (max-width:560px){.lang{margin-left:14px}}
.lang summary{list-style:none;cursor:pointer;padding:5px 10px;border:1px solid var(--line);border-radius:8px;font-size:.85rem;font-weight:700;color:var(--muted)}
.lang summary::-webkit-details-marker{display:none}
.lang summary::after{content:" ▾";font-weight:400}
.lang[open] summary,.lang summary:hover{color:var(--brand);border-color:var(--brand)}
.lang ul{position:absolute;right:0;top:calc(100% + 6px);z-index:20;margin:0;padding:6px;list-style:none;min-width:150px;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.12)}
.lang a{display:block;padding:7px 10px;border-radius:6px;text-decoration:none;color:var(--text);font-size:.95rem}
.lang a:hover,.lang a[aria-current]{background:var(--brand-soft);color:var(--brand)}
.lang a[aria-current]{font-weight:700}
/* Migas */
.crumbs{font-size:.85rem;color:var(--muted);margin:18px 0 0}
.crumbs a{color:var(--muted)}

/* Layout */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;margin:20px 0 48px}
@media (max-width:900px){.layout{grid-template-columns:1fr}.sidebar{order:2}}
h1{font-size:clamp(1.6rem,4vw,2.3rem);line-height:1.2;margin:.3em 0 .4em}
h2{font-size:1.4rem;margin:1.8em 0 .5em;line-height:1.3}
h3{font-size:1.12rem;margin:1.4em 0 .4em}
.lead{font-size:1.1rem;color:var(--muted);margin-top:0}

/* Calculadora */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px 18px}
.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:4px}
.field input,.field select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;background:var(--bg);color:var(--text)}
.field input:focus,.field select:focus{outline:2px solid var(--brand);border-color:transparent}
.field small{color:var(--muted);font-size:.8rem}
.check{display:flex;gap:8px;align-items:center;font-size:.92rem}
.btn{margin-top:16px;background:var(--brand);color:var(--on-brand);border:0;border-radius:8px;padding:12px 20px;font:inherit;font-weight:700;cursor:pointer;width:100%}
#resultado{margin-top:20px;scroll-margin-top:84px}
.big{background:var(--brand-soft);border-radius:var(--radius);padding:16px 18px;text-align:center}
.big span{display:block;color:var(--muted);font-size:.9rem}
.big strong{display:block;font-size:2.1rem;color:var(--brand);line-height:1.2}
.big small{color:var(--muted)}
.bar{display:flex;height:14px;border-radius:7px;overflow:hidden;margin:18px 0 6px;background:var(--line)}
.bar-neto{background:var(--brand)}.bar-irpf{background:var(--irpf)}.bar-ss{background:var(--ss)}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:.85rem;color:var(--muted)}
.dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:5px}
.dot.neto{background:var(--brand)}.dot.irpf{background:var(--irpf)}.dot.ss{background:var(--ss)}
table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.95rem}
th,td{padding:8px 6px;border-bottom:1px solid var(--line);text-align:left}
.desglose td{text-align:right;white-space:nowrap}
.desglose .sub th,.desglose .sub td{color:var(--muted);font-weight:400;font-size:.85rem;padding-left:18px}
.desglose .total th,.desglose .total td{font-weight:800;border-bottom:0}
.note{font-size:.85rem;color:var(--muted)}
.aviso{font-size:.85rem;color:var(--muted);border-left:3px solid var(--accent);padding:6px 12px;margin:16px 0}

/* Contenido */
.content{min-width:0}
.content p,.content li{max-width:70ch}
.faq details{border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin:8px 0;background:var(--surface)}
.faq summary{font-weight:600;cursor:pointer}
.tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:16px 0}
.tools a{display:block;padding:14px 16px;border:1px solid var(--line);border-radius:10px;background:var(--surface);text-decoration:none;color:var(--text)}
.tools a strong{display:block;color:var(--brand)}
.tools a span{font-size:.88rem;color:var(--muted)}
.posts{list-style:none;padding:0}
.posts li{padding:14px 0;border-bottom:1px solid var(--line)}
.posts a{font-weight:700;font-size:1.1rem;text-decoration:none}
.posts p{margin:4px 0 0;color:var(--muted)}
.meta{font-size:.85rem;color:var(--muted)}
.search{margin:20px 0 8px}
.search label{display:block;font-weight:600;font-size:.92rem;margin-bottom:6px}
.search input{scroll-margin-top:110px;width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;background:var(--surface);color:var(--text)}
.search input:focus{outline:2px solid var(--brand);border-color:transparent}
/* Sidebar */
.sidebar .box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.sidebar h2{font-size:1rem;margin:0 0 8px}
.sidebar ul{margin:0;padding-left:18px;font-size:.93rem}
.sidebar .sticky{position:sticky;top:80px}

/* Anuncios: los huecos vacíos no ocupan espacio */
.ad-slot{margin:24px 0;text-align:center;min-height:0}
.ad-slot:empty{display:none}

/* Pie */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:28px 0;font-size:.9rem;color:var(--muted)}
.site-footer nav{display:flex;flex-wrap:wrap;gap:6px 18px;margin-bottom:10px}
.site-footer a{color:var(--muted)}
.field.check input{width:auto;margin:0;accent-color:var(--brand)}
.field.check label{display:inline;font-weight:400;margin:0}
.field.check{align-self:end;padding-bottom:10px}
[hidden]{display:none!important}
a:focus-visible,summary:focus-visible,.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}