/* ============================================================
   TodoCálculo · estilos base comunes · móvil primero
   ============================================================ */

:root{
  /* superficie — plantilla oscura: negro como base, naranja y verde como acento.
     Rampa de elevación: --bg (más oscuro) < --bg-tint < --card < --card-2 (más claro) */
  --bg:#0A0A0A; --bg-tint:#151210; --card:#1E1A16; --card-2:#26211B;
  --ink:#F4F0E8; --muted:#A79E90; --line:#332E28;
  /* marca */
  --sun:#F59E0B; --sun-2:#F97316;
  --leaf:#0F7B5A; --leaf-2:#12805C;      /* relleno (botones/insignias, con texto blanco encima) */
  --leaf-text:#34D399;                   /* verde vivo para texto/enlaces sobre fondo oscuro */
  --leaf-050:#12251D; --leaf-bd:#28493C;
  /* aviso */
  --warn-bg:#2A2013; --warn-line:#B9822A; --warn-ink:#F0C674; --warn-text:#CBA978;
  /* sombra / geometría */
  --shadow-sm:0 1px 2px rgba(0,0,0,.5), 0 3px 14px rgba(0,0,0,.45);
  --shadow-md:0 18px 40px -16px rgba(0,0,0,.75);
  --radius:16px; --radius-sm:12px; --maxw:640px;
  --display:"Fraunces",Georgia,"Times New Roman",serif;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;color-scheme:dark}
body{
  margin:0;font-family:var(--font);color:var(--ink);line-height:1.55;font-size:16px;
  background-color:var(--bg);
  background-image:
    radial-gradient(62% 42% at 100% -4%, rgba(245,158,11,.14), transparent 70%),
    radial-gradient(48% 30% at -8% 0%, rgba(15,123,90,.14), transparent 70%);
  background-repeat:no-repeat;
}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 18px}

h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:-.01em;line-height:1.16;margin:0}
h1{font-size:1.72rem}
h2{font-size:1.24rem}
h3{font-size:1rem}
p{margin:.45rem 0}
a{color:var(--leaf-text)}
.small{font-size:.85rem;color:var(--muted);line-height:1.5}

/* ---------- cabecera ---------- */
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(10,10,10,.78);backdrop-filter:saturate(1.3) blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .container{display:flex;align-items:center;min-height:58px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-size:1.05rem}
.brand .dot{
  width:13px;height:13px;border-radius:50%;
  background:radial-gradient(circle at 32% 30%, #FFD27A, var(--sun) 45%, var(--sun-2));
  box-shadow:0 0 0 4px rgba(245,158,11,.2);
}
.brand .name{font-weight:700}
.brand .name b{font-weight:800;color:var(--leaf-text)}

/* ---------- hero ---------- */
.hero{padding:14px 0 6px}
.hero-inner{display:flex;flex-direction:column-reverse;align-items:flex-start;gap:10px}
.hero-text{flex:1 1 auto}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;
  color:var(--sun-2);background:rgba(245,158,11,.12);
  border:1px solid rgba(245,158,11,.3);padding:5px 11px;border-radius:999px;
}
.hero h1{margin:.6rem 0 .4rem}
.hero .lead{color:var(--muted);font-size:1.02rem;max-width:46ch;margin:0}
.hero-art{width:64px;height:64px;flex:0 0 auto;align-self:flex-end;margin:0 4px -2px 0}

@media(min-width:520px){
  .hero-inner{flex-direction:row;align-items:center;gap:20px}
  .hero-art{width:110px;height:110px;align-self:center;margin:0}
}

/* ---------- tarjetas / pasos ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;margin:16px 0;box-shadow:var(--shadow-sm);
}
.step-head{display:flex;gap:12px;align-items:flex-start;margin-bottom:4px}
.step-n{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;display:grid;place-items:center;
  font-family:var(--display);font-weight:600;font-size:.95rem;color:#fff;
  background:linear-gradient(135deg,var(--leaf),var(--leaf-2));
  box-shadow:0 5px 12px -5px rgba(15,123,90,.55);
}
.step-n.done{background:linear-gradient(135deg,var(--sun),var(--sun-2));box-shadow:0 5px 12px -5px rgba(249,115,22,.5)}
.step-desc{margin:.2rem 0 0}

/* ---------- campos de formulario ---------- */
.field{display:flex;flex-direction:column;gap:5px;font-size:.8rem;font-weight:700;color:var(--muted)}
.field input,.field select{
  font:inherit;font-weight:500;font-size:.95rem;color:var(--ink);
  padding:11px 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--card);width:100%;
  transition:border-color .12s ease, box-shadow .12s ease;
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--leaf);box-shadow:0 0 0 3px var(--leaf-050);
}
.field select{
  appearance:none;-webkit-appearance:none;padding-right:36px;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23A79E90' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;
}

.check-line{display:flex;align-items:center;gap:9px;margin:12px 0 4px;font-size:.88rem;font-weight:600;color:var(--ink);cursor:pointer}
.check-line input{width:18px;height:18px;accent-color:var(--leaf);flex:0 0 auto}

/* ---------- botón ---------- */
.btn{
  display:block;width:100%;font:inherit;font-weight:700;font-size:1rem;color:#fff;
  border:0;border-radius:12px;padding:15px 20px;margin-top:16px;cursor:pointer;
  background:linear-gradient(135deg,var(--sun),var(--sun-2));
  box-shadow:0 8px 20px -8px rgba(249,115,22,.55);
  transition:transform .12s ease, box-shadow .12s ease, filter .12s ease;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 26px -8px rgba(249,115,22,.6);filter:saturate(1.05)}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--sun-2);outline-offset:3px}

/* ---------- huecos de PUBLICIDAD de display (reservados) ---------- */
.ad-slot{width:100%;max-width:var(--maxw);margin:18px auto;padding:0 18px}
.ad-label{
  display:block;margin:0 0 4px 2px;
  font-size:.6rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
}
.ad-slot>div{
  border:1.5px dashed var(--line);border-radius:14px;min-height:96px;
  display:grid;place-items:center;background:rgba(255,255,255,.03);
  color:#5A5449;font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;
}
@media(max-width:560px){.ad-slot>div{min-height:64px}}

/* ---------- pie ---------- */
.site-footer{margin-top:34px;border-top:1px solid var(--line);background:rgba(21,18,16,.6)}
.site-footer .container{padding:18px 18px 32px}
.legal{display:flex;gap:9px;font-size:.8rem;color:var(--muted);margin:0}
.legal::before{content:"⚖️";flex:0 0 auto}

/* ---------- hub ---------- */
.hub-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:14px}
.hub-list .card{margin:0;transition:transform .12s ease, box-shadow .12s ease}
.hub-list .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.hub-list h2{margin-bottom:.25rem}
.hub-list h2 a{text-decoration:none;color:var(--ink)}
.hub-list h2 a::after{content:" →";color:var(--sun-2)}

/* ---------- rejilla de campos a 2 columnas (reutilizable) ---------- */
.grid2{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:520px){.grid2{grid-template-columns:1fr 1fr}}

/* ---------- herramienta independiente (forma + resultado, sin pasos) ---------- */
.tool{margin:22px 0}
.tool:first-child{margin-top:4px}
.tool-head{display:flex;align-items:center;gap:11px;margin-bottom:4px}
.tool-ico{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-size:1.15rem;background:var(--leaf-050);border:1px solid var(--leaf-bd);
}
.tool-head h2{font-size:1.1rem}
.tool-desc{margin:.2rem 0 0}
hr.tool-sep{border:0;border-top:1px solid var(--line);margin:22px 0}

/* ---------- tarjetas de métrica (resultado, reutilizable) ---------- */
.metric-grid{display:grid;grid-template-columns:1fr;gap:12px;margin-top:14px}
@media(min-width:520px){.metric-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}}
.metric{
  position:relative;overflow:hidden;background:var(--card);
  border:1px solid var(--line);border-radius:14px;padding:14px 15px 14px 17px;
}
.metric::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;
  background:linear-gradient(var(--leaf),var(--leaf-2))}
.metric.sun::before{background:linear-gradient(var(--sun),var(--sun-2))}
.metric h3{
  font-family:var(--font);font-weight:800;font-size:.74rem;text-transform:uppercase;
  letter-spacing:.06em;color:var(--muted);margin-bottom:.35rem;
}
.metric .v{font-family:var(--display);font-size:1.4rem;font-weight:600;color:var(--leaf-text);line-height:1.16}
.metric.sun .v{color:var(--sun-2)}
.metric .metric-exp{font-size:.8rem;color:var(--muted);margin:.3rem 0 0}

.tool-note{
  margin-top:14px;background:var(--warn-bg);border:1px solid var(--warn-line);
  border-left:5px solid var(--warn-line);border-radius:12px;padding:12px 14px;
  font-size:.85rem;color:var(--warn-text);
}

/* ---------- entrada suave ---------- */
@media (prefers-reduced-motion:no-preference){
  .hero,main>.card{animation:rise .42s cubic-bezier(.2,.7,.3,1) both}
  main>.card:nth-of-type(2){animation-delay:.05s}
  main>.card:nth-of-type(3){animation-delay:.1s}
  @keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
}

.noscript{background:var(--warn-bg);border:1px solid var(--warn-line);padding:12px;border-radius:12px}

/* ---------- oculto visualmente, presente para lectores de pantalla / SEO ---------- */
.visually-hidden{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* ---------- páginas de texto (legal, contacto) ---------- */
.prose{padding:22px 0 8px}
.prose h1{font-size:1.6rem;margin-bottom:.5rem}
.prose h2{font-size:1.1rem;margin:1.7rem 0 .4rem}
.prose p,.prose li{font-size:.94rem;color:var(--ink);line-height:1.65}
.prose ul{padding-left:1.2rem;margin:.4rem 0}
.prose a{word-break:break-word}
.prose .upd{font-size:.8rem;color:var(--muted)}
.prose .plantilla{
  background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:12px;
  padding:12px 14px;font-size:.85rem;color:var(--warn-ink);margin:0 0 18px;
}
.prose .plantilla::before{content:"⚠️ ";}

/* ---------- nav del pie ---------- */
.foot-nav{display:flex;flex-wrap:wrap;gap:6px 16px;margin-bottom:10px}
.foot-nav a{font-size:.82rem;font-weight:600;color:var(--leaf-text);text-decoration:none}
.foot-nav a:hover{text-decoration:underline}

/* ---------- banner de consentimiento (provisional, no es una CMP certificada) ---------- */
.cmp-bar{
  position:fixed;left:12px;right:12px;bottom:12px;z-index:60;
  max-width:var(--maxw);margin:0 auto;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-md);padding:14px 16px;
  display:flex;flex-direction:column;gap:10px;
}
.cmp-txt{margin:0;font-size:.85rem;color:var(--ink)}
.cmp-btns{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.cmp-link{margin-right:auto;font-size:.8rem;font-weight:600}
.cmp-b{font:inherit;font-weight:700;font-size:.85rem;border-radius:9px;padding:9px 16px;
  cursor:pointer;border:1.5px solid var(--line);background:var(--card);color:var(--ink)}
.cmp-yes{border-color:transparent;color:#fff;background:linear-gradient(135deg,var(--leaf),var(--leaf-2))}
@media(min-width:520px){.cmp-bar{flex-direction:row;align-items:center}.cmp-txt{flex:1 1 auto}}