/* TuCalcu — minimal y sereno: papel cálido, líneas finas, un solo acento azul pizarra. Móvil primero, LTR. */
:root{
  --bg:#FBFAF7;--card:#FFFFFF;--fg:#1C2024;--accent:#2F5F73;--accent-ink:#244B5B;--on-accent:#fff;--accent-soft:#E6EEF1;
  --muted:#F1EFE9;--muted-fg:#646B72;--border:#E4E1D8;--danger:#B3261E;--ok:#2F6B4F;
  --sans:"Public Sans","Segoe UI",system-ui,sans-serif;--head:"Familjen Grotesk","Public Sans","Segoe UI",system-ui,sans-serif;--mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --radius:10px;--shadow:0 1px 2px rgba(28,32,36,.04),0 8px 24px -14px rgba(28,32,36,.14);
  color-scheme:light;
}
@media(prefers-color-scheme:dark){
  :root:not([data-theme=light]){
    --bg:#14171A;--card:#1B1F23;--fg:#E7E9EB;--accent:#86BCCD;--accent-ink:#A5D0DC;--on-accent:#0E1A1F;--accent-soft:#1F2C32;
    --muted:#1E2327;--muted-fg:#9BA3AA;--border:#2C3338;--danger:#FF8F82;--ok:#7CCBA2;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -14px rgba(0,0,0,.6);color-scheme:dark;
  }
}
:root[data-theme=dark]{
  --bg:#14171A;--card:#1B1F23;--fg:#E7E9EB;--accent:#86BCCD;--accent-ink:#A5D0DC;--on-accent:#0E1A1F;--accent-soft:#1F2C32;
  --muted:#1E2327;--muted-fg:#9BA3AA;--border:#2C3338;--danger:#FF8F82;--ok:#7CCBA2;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -14px rgba(0,0,0,.6);color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:400 17px/1.7 var(--sans);color:var(--fg);background:var(--bg);min-height:100vh;display:flex;flex-direction:column;overflow-wrap:break-word}
a{color:var(--accent-ink);text-underline-offset:3px;text-decoration-thickness:1px}a:hover{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.wrap{max-width:1080px;margin-inline:auto;padding-inline:20px}
@media(min-width:700px){.wrap{padding-inline:32px}}
h1,h2,h3{font-family:var(--head);color:var(--fg);font-weight:600;line-height:1.2;letter-spacing:-.02em}
h1{font-size:clamp(1.8rem,5vw,2.6rem);margin:.4em 0 .3em}
h2{font-size:clamp(1.25rem,3vw,1.6rem);margin:1.9em 0 .5em}
h3{font-size:1.08rem;margin:0}
h2 a{color:inherit;text-decoration:none}h2 a:hover{color:var(--accent)}
strong,b{font-weight:600}
.num,.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.eyebrow{display:inline-block;font:500 .78rem var(--sans);color:var(--accent-ink);background:var(--accent-soft);padding:4px 12px;border-radius:999px}

/* Cabecera */
.site-header{background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:30}
.bar{display:flex;align-items:center;min-height:66px;gap:16px;position:relative}
.brand{display:inline-flex;align-items:center;gap:9px;text-decoration:none;color:var(--fg);font:600 1.4rem/1 var(--head);letter-spacing:-.03em}
.brand:hover{color:var(--fg)}
.brand .logo{display:block;height:36px;width:auto}
.brand .logo-dark{display:none}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .brand .logo-light{display:none}:root:not([data-theme=light]) .brand .logo-dark{display:block}}
:root[data-theme=dark] .brand .logo-light{display:none}:root[data-theme=dark] .brand .logo-dark{display:block}
.brand .mark{display:inline-grid;place-items:center;width:28px;height:28px;background:var(--accent);color:var(--on-accent);border-radius:50%;font:500 1rem/1 var(--mono)}
.brand em{font-style:normal;color:var(--accent-ink)}
.nav{display:flex;gap:2px;flex-wrap:wrap;margin-inline-start:auto}
.nav a{color:var(--muted-fg);text-decoration:none;font-size:.95rem;font-weight:500;padding:8px 14px;min-height:44px;display:inline-flex;align-items:center;border-radius:999px}
.nav a:hover{color:var(--fg);background:var(--muted)}
.nav a[aria-current=page]{color:var(--accent-ink);background:var(--accent-soft)}
.tools{display:flex;gap:8px;align-items:center}
.theme-btn,.burger{background:transparent;border:1px solid var(--border);border-radius:999px;min-width:44px;height:44px;padding:0 14px;cursor:pointer;color:var(--fg);font:500 .9rem var(--sans);display:inline-flex;align-items:center;justify-content:center}
.theme-btn:hover,.burger:hover{background:var(--muted)}
.theme-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.theme-btn .i-sun{display:none}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .theme-btn .i-sun{display:block}:root:not([data-theme=light]) .theme-btn .i-moon{display:none}}
:root[data-theme=dark] .theme-btn .i-sun{display:block}:root[data-theme=dark] .theme-btn .i-moon{display:none}
.burger{display:none}
@media(max-width:860px){
  .nav{margin-inline-start:0}
  .tools{margin-inline-start:auto}
  .burger{display:inline-flex}
  .nav{display:none;position:absolute;top:100%;inset-inline:0;flex-direction:column;gap:0;background:var(--bg);border-bottom:1px solid var(--border);padding:8px 0;z-index:20}
  .nav.open{display:flex}
  .nav a{padding:13px 8px;font-size:1.02rem;border-radius:var(--radius);min-height:48px}
}
main.wrap{padding-block:28px 80px;flex:1 0 auto;width:100%}
.crumbs{font-size:.85rem;color:var(--muted-fg)}.crumbs a{color:var(--muted-fg);text-decoration:none}.crumbs a:hover{color:var(--accent-ink);text-decoration:underline}
.lead{font-size:1.1rem;color:var(--muted-fg);max-width:60ch;margin:0 0 .6em}
.meta{font-size:.86rem;color:var(--muted-fg);margin:0 0 24px}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin:-.1em 0 .9em}
.badge{display:inline-block;font:500 .78rem var(--sans);padding:3px 12px;border-radius:999px;background:var(--muted);color:var(--muted-fg)}
.badge.gold{background:var(--accent-soft);color:var(--accent-ink)}

/* Portada */
.hero{padding:56px 0 28px;max-width:760px}
@media(max-width:700px){.hero{padding-top:30px}}
.hero h1{font-size:clamp(2.3rem,7vw,4rem);line-height:1.06;letter-spacing:-.035em;margin:.5em 0 .35em;font-weight:600}
.hero h1 mark{background:none;color:var(--accent);font-style:italic;font-weight:500}
.hero p{color:var(--muted-fg);font-size:1.12rem;margin:0 0 28px;max-width:50ch}
.search{max-width:560px;position:relative}
.search::before{content:"";position:absolute;inset-inline-start:18px;top:50%;width:16px;height:16px;margin-top:-10px;border:2px solid var(--muted-fg);border-radius:50%;pointer-events:none}
.search::after{content:"";position:absolute;inset-inline-start:31px;top:50%;width:2px;height:7px;margin-top:3px;background:var(--muted-fg);transform:rotate(-45deg);pointer-events:none}
.search input{width:100%;height:56px;padding-inline:52px 18px;font:400 1.05rem var(--sans);color:var(--fg);background:var(--card);border:1px solid var(--border);border-radius:999px;box-shadow:var(--shadow)}
.search input::placeholder{color:var(--muted-fg)}
.search input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.search-empty{margin:16px 0 0;color:var(--muted-fg);font-size:.95rem}
.cat-grid{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.cat-card{display:inline-flex;align-items:center;gap:8px;padding:0 16px;border:1px solid var(--border);border-radius:999px;color:var(--fg);text-decoration:none;font-size:.93rem;font-weight:500;min-height:42px}
.cat-card span{font-size:.8rem;color:var(--muted-fg)}
.cat-card:hover{border-color:var(--accent);color:var(--accent-ink)}
.block{margin-top:52px}
.block>h2{margin:0 0 6px;font-size:1.05rem;font-weight:500;color:var(--muted-fg);letter-spacing:0}
.block>h2 a:hover{color:var(--accent)}

/* Lista de calculadoras: filas limpias, sin cajas */
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:48px}
@media(max-width:760px){.tiles{grid-template-columns:1fr}}
.tile{position:relative;display:block;padding:20px 36px 20px 0;text-decoration:none;color:var(--fg);border-top:1px solid var(--border);min-height:44px}
.tile::after{content:"→";position:absolute;inset-inline-end:4px;top:22px;color:var(--muted-fg);transition:transform .15s,color .15s}
.tile:hover{color:var(--fg)}
.tile:hover::after{color:var(--accent);transform:translateX(5px)}
.tile:hover h3{color:var(--accent-ink)}
.tile h3{margin:0 0 4px;font-size:1.18rem;transition:color .15s}
.tile p{margin:0;color:var(--muted-fg);font-size:.94rem;line-height:1.6}
.tile .country{display:block;font-size:.74rem;font-weight:600;color:var(--accent-ink);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}

/* Página de herramienta */
.tool-layout{display:grid;grid-template-columns:minmax(0,720px) minmax(0,1fr);gap:56px;margin-top:14px;align-items:start}
@media(max-width:980px){.tool-layout{grid-template-columns:minmax(0,1fr);gap:8px}}
.side{position:sticky;top:96px}
@media(max-width:980px){.side{position:static}}
.panel{background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);margin-bottom:24px;overflow:hidden}
.panel-body{padding:24px}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:12px 24px;border-bottom:1px solid var(--border);font-size:.82rem;font-weight:500;color:var(--muted-fg)}
.field{margin-bottom:20px}
.field>label,.field>.lbl{display:block;font-size:.92rem;color:var(--fg);font-weight:600;margin-bottom:6px}
.field input[type=text],.field select{width:100%;height:50px;padding-inline:14px;font:400 1.08rem var(--mono);color:var(--fg);border:1px solid var(--border);border-radius:var(--radius);background:var(--bg)}
.field select{font-family:var(--sans);font-size:1rem}
.field input:focus,.field select:focus{outline:0;border-color:var(--accent);background:var(--card);box-shadow:0 0 0 4px var(--accent-soft)}
.field input[aria-invalid=true]{border-color:var(--danger)}
.check{display:flex!important;gap:10px;align-items:center;font-weight:400!important}
.check input{accent-color:var(--accent);width:20px;height:20px}
.field-error{color:var(--danger);font-size:.88rem;font-weight:500;margin:6px 0 0}.field-error:empty{display:none}
.field-hint{margin:5px 0 0;font-size:.86rem;color:var(--muted-fg)}
.date-trio{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1.5fr);gap:8px}.date-trio input{min-width:0;text-align:center!important}
.field,.panel,.main{min-width:0}
.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:var(--on-accent);border:1px solid var(--accent);border-radius:999px;padding:0 30px;min-height:50px;font:600 1rem var(--sans);cursor:pointer;text-decoration:none;transition:background .15s}
.btn:hover{background:var(--accent-ink);border-color:var(--accent-ink);color:var(--on-accent)}
form .btn{width:100%}
@media(min-width:700px){form .btn{width:auto;min-width:180px}}
.btn-ghost{background:transparent;color:var(--fg);border:1px solid var(--border);border-radius:999px;padding:0 16px;min-height:42px;font:500 .88rem var(--sans);cursor:pointer}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-ink)}
.btn-link{background:none;border:0;color:var(--accent-ink);font:500 .9rem var(--sans);cursor:pointer;padding:0 6px;min-height:44px;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.btn-link:hover{color:var(--accent)}
.panel-head .btn-link{min-height:32px;font-size:.82rem}
.result .placeholder{padding:30px 24px;margin:0;color:var(--muted-fg)}
.result-main{padding:24px 24px 18px}
.result-main span{display:block;font-size:.85rem;color:var(--muted-fg);margin-bottom:4px}
.result-main strong{display:inline-block;font:500 clamp(2rem,7.5vw,3rem)/1.15 var(--mono);color:var(--accent-ink);letter-spacing:-.02em}
.result-rows{margin:0;border-top:1px solid var(--border)}
.result-rows div{display:flex;align-items:baseline;gap:8px;padding:11px 24px;font-size:.95rem;border-bottom:1px solid var(--border)}
.result-rows div:last-child{border-bottom:0}
.result-rows dt{flex:1;color:var(--muted-fg)}
.result-rows dd{margin:0;font:500 .98rem var(--mono);white-space:nowrap;text-align:end}
.result-sentence{margin:0;padding:14px 24px;font-weight:500;border-top:1px solid var(--border)}
.result-foot{margin:0;padding:12px 24px;font-size:.88rem;color:var(--muted-fg);border-top:1px solid var(--border)}
.result-foot.warn{background:var(--accent-soft);color:var(--fg)}
.result-error{margin:0;padding:22px;color:var(--danger);font-weight:500}
.actions{display:flex;gap:8px;flex-wrap:wrap;padding:14px 24px;border-top:1px solid var(--border)}
.report-box{padding:14px 24px;border-top:1px solid var(--border)}
.report-box textarea{width:100%;min-height:90px;padding:10px 12px;font:400 1rem var(--sans);color:var(--fg);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);margin:8px 0}
.ad-slot{min-height:280px;margin:0 0 24px;border:1px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--muted-fg);font-size:.78rem}

/* Contenido */
.prose{max-width:68ch}
.prose h2:first-child{margin-top:0}
.prose table,.table-wrap table{border-collapse:collapse;width:100%;margin:1em 0;font-size:.95rem}
.prose table{display:block;overflow-x:auto}
.prose th,.prose td{border-bottom:1px solid var(--border);padding:10px 12px;text-align:start}
.prose th{font-size:.8rem;font-weight:600;color:var(--muted-fg);background:var(--muted)}
.prose td.n{font-family:var(--mono);text-align:end}
.prose blockquote{margin:1.2em 0;padding:2px 18px;border-inline-start:3px solid var(--accent);color:var(--muted-fg)}
.prose code{font-family:var(--mono);background:var(--muted);padding:1px 6px;border-radius:4px;font-size:.9em}
.steps-list{list-style:none;padding:0;margin:.6em 0;counter-reset:s;max-width:68ch}
.steps-list li{counter-increment:s;display:grid;grid-template-columns:34px 1fr;gap:14px;padding:12px 0;border-bottom:1px solid var(--border)}
.steps-list li::before{content:counter(s);display:grid;place-items:center;width:28px;height:28px;background:var(--accent-soft);color:var(--accent-ink);font:500 .85rem var(--mono);border-radius:50%}
.summary{background:var(--accent-soft);border-radius:var(--radius);padding:14px 20px 16px;margin:24px 0;max-width:68ch}
.summary strong{font-size:.8rem;font-weight:600;color:var(--accent-ink);text-transform:uppercase;letter-spacing:.08em}.summary p{margin:.3em 0 0}
.source-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 20px;margin:28px 0;max-width:68ch}
.source-box h3{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--ok);margin-bottom:6px}.source-box p{margin:.3em 0;font-size:.95rem}.source-box ul{margin:.4em 0;padding-inline-start:1.2em}
.method{font-size:.93rem;color:var(--muted-fg);margin:.4em 0}
.faq-title{margin-top:1.6em}
.faq{border-bottom:1px solid var(--border);max-width:68ch}
.faq:first-of-type{border-top:1px solid var(--border)}
.faq summary{cursor:pointer;font-weight:600;min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:300 1.4rem var(--sans);color:var(--muted-fg)}
.faq[open] summary::after{content:"−"}
.faq p{margin:0;padding:0 0 16px;color:var(--muted-fg)}
.cards-mini{display:flex;flex-direction:column}
.cards-mini a{border-top:1px solid var(--border);padding:12px 4px;text-decoration:none;color:var(--fg);font-weight:500;min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.cards-mini a:last-child{border-bottom:1px solid var(--border)}
.cards-mini a::after{content:"→";color:var(--muted-fg);transition:transform .15s}
.cards-mini a:hover{color:var(--accent-ink)}.cards-mini a:hover::after{transform:translateX(4px);color:var(--accent)}
.cta{margin:20px 0}
.disclaimer{font-size:.88rem;color:var(--muted-fg);border-top:1px solid var(--border);padding-top:14px;margin-top:34px;max-width:68ch}
.byline{font-size:.88rem;color:var(--muted-fg)}.byline p{margin:2px 0}
.avatar{width:96px;height:96px;border-radius:50%;object-fit:cover}

/* Pie */
.site-footer{border-top:1px solid var(--border);color:var(--muted-fg);padding:48px 0 0;margin-top:20px;background:var(--muted)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;padding-bottom:34px}
.foot-about p{max-width:44ch;margin:14px 0 0;font-size:.93rem;line-height:1.75}
.foot-col{display:flex;flex-direction:column;gap:2px}
.foot-col h2{font:600 .78rem var(--sans);text-transform:uppercase;letter-spacing:.1em;color:var(--fg);margin:0 0 10px}
.foot-col a{color:var(--muted-fg);text-decoration:none;font-size:.95rem;min-height:36px;display:flex;align-items:center}.foot-col a:hover{color:var(--accent-ink)}
.foot-col button{background:none;border:0;padding:0;color:var(--muted-fg);font:400 .95rem var(--sans);text-align:start;cursor:pointer;min-height:36px;text-decoration:underline}
.foot-col button:hover{color:var(--accent-ink)}
.foot-copy{margin:0;padding:18px 0;border-top:1px solid var(--border);font-size:.82rem}
@media(max-width:700px){.foot-grid{grid-template-columns:1fr 1fr;gap:28px 16px}.foot-about{grid-column:1/-1}}
.cookie-banner{position:fixed;inset-inline:12px;bottom:12px;z-index:50;max-width:720px;margin-inline:auto;background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:0 12px 40px -12px rgba(0,0,0,.3);padding:12px 18px;display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center}
.cookie-banner p{margin:0;flex:1 1 280px;font-size:.88rem;line-height:1.5;color:var(--fg)}
.cookie-actions{display:flex;gap:8px}
.err{text-align:start;padding:56px 0 24px}.err .code{font:500 clamp(5rem,18vw,9rem)/1 var(--mono);color:var(--accent);margin-bottom:.1em}
.err p{color:var(--muted-fg);max-width:46ch;margin:0 0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{body{background:#fff}.cookie-banner,.site-header,.site-footer,.actions,.report-box,#calc-form,.crumbs,.side,.ad-slot,.btn-link,.prose,.faq,.panel-head button,.summary,.steps-list,.source-box{display:none!important}.tool-layout{display:block}.panel{box-shadow:none}}