/* RIV-105: calculadora rehecha. Autónoma, tema claro, móvil primero. */
:root{--bg:#f7f9fc;--card:#fff;--text:#0f1b2d;--muted:#52607a;--line:#e3e8f0;--accent:#0f766e;--danger:#b42318;--radius:16px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:-999px;top:0;background:#fff;padding:.6rem 1rem;z-index:9}
.skip-link:focus{left:.5rem;top:.5rem}
*:focus-visible{outline:3px solid #f59e0b;outline-offset:2px}
.calc-wrap{max-width:980px;margin:0 auto;padding:0 1rem}
.calc-top{background:#fff;border-bottom:1px solid var(--line)}
.calc-top-in{display:flex;justify-content:space-between;align-items:center;min-height:60px}
.calc-brand{font-weight:800;font-size:1.25rem;color:var(--accent);text-decoration:none}
.calc-top nav{display:flex;gap:1.25rem;align-items:center}
.calc-top nav a{color:var(--muted);text-decoration:none;font-size:.95rem;padding:.7rem 0}
.calc-top nav a.nav-cta{color:var(--accent);font-weight:700}
.calc-intro{padding:1.75rem 0 1rem}
.calc-intro h1{margin:0 0 .5rem;font-size:clamp(1.7rem,5.5vw,2.5rem);line-height:1.15;letter-spacing:-.01em}
.lead{margin:0;color:var(--muted);font-size:1.05rem;max-width:40rem}
.eyebrow{margin:0 0 .4rem;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:.75rem;font-weight:700}
.calc-main{display:grid;gap:1rem;margin-bottom:1rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;margin:0 0 1rem}
.card h2{margin:0 0 .75rem;font-size:1.15rem}
.calc-result{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem;box-shadow:0 10px 30px rgba(15,27,45,.08)}
.big{margin:0;font-size:clamp(3rem,15vw,4.8rem);font-weight:800;line-height:1;color:var(--danger);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.big-sub{margin:.35rem 0 0;color:var(--muted)}
.big-sub strong{color:var(--text)}
.bars{display:flex;height:10px;border-radius:99px;overflow:hidden;margin:1.1rem 0;background:var(--line)}
.bars span{display:block;height:100%}
.verdict{margin:0 0 1.1rem;font-size:1rem}
.tiny{margin:.75rem 0 0;color:var(--muted);font-size:.82rem}
.cta{display:inline-block;padding:.9rem 1.4rem;border-radius:12px;background:var(--accent);color:#fff;border:2px solid var(--accent);font:inherit;font-weight:700;text-decoration:none;text-align:center;cursor:pointer;min-height:48px}
.cta:hover{background:#0b5d56;border-color:#0b5d56}
.cta.secondary{background:#fff;color:var(--accent)}
.cta.secondary:hover{background:#e6f5f3}
.cta.large{display:block;width:100%;font-size:1.1rem;padding:1rem 1.4rem}
.cta:disabled{opacity:.6}
.field{margin:0 0 1rem}
.field label{display:block;margin-bottom:.3rem;font-size:.95rem;font-weight:600}
input,select{width:100%;min-height:48px;padding:.65rem .85rem;font:inherit;color:var(--text);background:#fff;border:1px solid #c5cfdd;border-radius:10px}
input:focus,select:focus{border-color:var(--accent)}
input[type=checkbox]{width:1.2rem;min-height:0;height:1.2rem;flex:none;margin-top:.2rem}
.muted{color:var(--muted)}
.tag{display:inline-block;margin-left:.2rem;padding:.05rem .5rem;border-radius:99px;background:#fef3c7;color:#92400e;font-size:.72rem;font-weight:600}
.recover{background:#e6f5f3;border-color:#a7d9d3}
.rec-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.rec-n{margin:0;font-size:1.6rem;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.15}
.rec-l{margin:.15rem 0 0;color:var(--muted);font-size:.85rem}
.fold>summary{cursor:pointer;font-weight:700;list-style:none;min-height:44px;display:flex;align-items:center;gap:.5rem}
.fold>summary::before{content:"+";display:inline-grid;place-items:center;width:1.5rem;height:1.5rem;border-radius:50%;background:#e6f5f3;color:var(--accent);flex:none}
.fold[open]>summary::before{content:"−"}
.fold>summary::-webkit-details-marker{display:none}
.breakdown{width:100%;border-collapse:collapse;margin-top:.5rem}
.breakdown th,.breakdown td{padding:.7rem .3rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.breakdown thead th{color:var(--muted);font-size:.75rem;text-transform:uppercase;letter-spacing:.06em}
.breakdown tbody th{font-weight:500}
.breakdown small{display:block;color:var(--muted);font-size:.82rem;margin-top:.15rem}
.breakdown .num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.breakdown tfoot th,.breakdown tfoot td{font-weight:800;border-bottom:0}
.dot{display:inline-block;width:.6rem;height:.6rem;border-radius:50%;margin-right:.5rem}
fieldset{border:0;border-top:1px solid var(--line);margin:1rem 0 0;padding:1rem 0 0}
legend{padding:0 .5rem 0 0;font-weight:700}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0 1.5rem}
.curve{margin-top:.5rem}.curve summary{cursor:pointer;color:var(--accent);min-height:44px}
.cta-cols{display:grid;gap:1.5rem}
.check{display:flex;gap:.6rem;align-items:flex-start;font-size:.85rem;color:var(--muted);margin:.5rem 0 1rem}
.maria{border-top:1px solid var(--line);padding-top:1.25rem}
.price{color:var(--muted);font-size:.85rem;margin-top:1rem}
.honeypot{display:none}
.contact-feedback{margin-top:.75rem;padding:.6rem .9rem;border-radius:10px;min-height:1.5rem;font-size:.92rem}
.contact-feedback:empty{display:none}
.contact-feedback.success{background:#e6f5f3;color:#0b5d56}
.contact-feedback.error{background:#fdecea;color:var(--danger)}
.sources ul{padding-left:1.1rem;color:var(--muted)}
.sources li{margin:.7rem 0;line-height:1.5}
.sources a,.check a,.maria a:not(.cta){display:inline-block;padding:.5rem .15rem}
.footer{text-align:center;padding:2rem 1rem;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;background:#fff}
.footer a{display:inline-block;padding:.6rem .3rem}
.cookies-aviso{margin:.5rem 0 0}
.container{max-width:980px;margin:0 auto}
@media(min-width:800px){
  .calc-main{grid-template-columns:1.25fr 1fr;align-items:start}
  .calc-result{grid-column:1;grid-row:1}
  .calc-quick{grid-column:2;grid-row:1}
  .rec-grid{grid-template-columns:repeat(4,1fr)}
  .cta-cols{grid-template-columns:1.2fr 1fr;gap:2rem}
  .maria{border-top:0;border-left:1px solid var(--line);padding:0 0 0 2rem}
  .cta.large{display:inline-block;width:auto}
}
@media(max-width:480px){.calc-top nav a:first-child{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}