/* reformacalculada.com — estilos globales */
:root {
  --ink: #1d2730;
  --muted: #5e6c76;
  --line: #d9e1e6;
  --bg: #ffffff;
  --soft: #f3f6f7;
  --teal: #0f5767;
  --teal-dark: #0b3b47;
  --teal-soft: #e7f1f3;
  --accent: #c8572a;
  --accent-soft: #fcefe6;
  --radius: 12px;
  --max: 1080px;
  --text: 720px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
}
img, svg { max-width: 100%; height: auto; }
a { color: var(--teal); text-underline-offset: 2px; }
a:hover { color: var(--teal-dark); }
h1, h2, h3 { line-height: 1.25; color: var(--teal-dark); letter-spacing: -0.01em; }
h1 { font-size: clamp(1.8rem, 4.5vw, 2.5rem); margin: 0 0 .6rem; }
h2 { font-size: 1.45rem; margin: 2.2rem 0 .7rem; }
h3 { font-size: 1.12rem; margin: 1.6rem 0 .4rem; color: var(--ink); }
p { margin: 0 0 1rem; }
ul, ol { padding-left: 1.3rem; margin: 0 0 1rem; }
li { margin-bottom: .35rem; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 1rem; top: 1rem; background: #fff; padding: .5rem 1rem; z-index: 10; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.prose { max-width: var(--text); }

/* Cabecera */
.site-header { border-bottom: 1px solid var(--line); background: #fff; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .55rem; text-decoration: none; color: var(--teal-dark); font-weight: 700; font-size: 1.08rem; }
.brand svg { width: 34px; height: 34px; flex: none; }
.brand span b { color: var(--accent); font-weight: 700; }
.nav { display: flex; gap: 1.1rem; flex-wrap: wrap; font-size: .95rem; }
.nav a { text-decoration: none; color: var(--ink); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--teal); text-decoration: underline; }

/* Migas */
.crumbs { font-size: .88rem; color: var(--muted); margin: 1.2rem 0 .8rem; }
.crumbs a { color: var(--muted); }

main { padding-bottom: 3rem; }

/* Portada */
.hero { background: var(--teal-soft); border-bottom: 1px solid var(--line); padding: 3rem 0 2.6rem; margin-bottom: 2rem; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 640px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1rem; margin: 1rem 0 2rem; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.2rem 1rem; background: #fff; }
.card h3 { margin-top: 0; }
.card h3 a { text-decoration: none; }
.card p { color: var(--muted); font-size: .96rem; }
.card .tag { display: inline-block; font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--accent); margin-bottom: .3rem; }
.card.soon { background: var(--soft); }

/* Respuesta directa */
.answer { background: var(--teal-soft); border-left: 4px solid var(--teal); border-radius: 0 var(--radius) var(--radius) 0; padding: 1rem 1.2rem; margin: 1rem 0 1.6rem; }
.answer p:last-child { margin: 0; }

/* Calculadora */
.calc { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.3rem; background: #fff; box-shadow: 0 2px 10px rgba(15, 87, 103, .06); margin: 1.4rem 0 2rem; }
.calc h2 { margin-top: 0; font-size: 1.25rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: .9rem 1rem; }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: .25rem; }
.field .hint { display: block; font-size: .8rem; color: var(--muted); margin-top: .2rem; line-height: 1.35; }
.field input, .field select {
  width: 100%; font: inherit; font-size: 1rem; padding: .55rem .65rem;
  border: 1px solid #b9c6cd; border-radius: 8px; background: #fff; color: var(--ink);
}
.field input:focus, .field select:focus { border-color: var(--teal); outline: 2px solid var(--teal-soft); }
.check { display: flex; align-items: center; gap: .5rem; font-weight: 600; font-size: .92rem; margin-top: 1rem; }
.check input { width: 18px; height: 18px; accent-color: var(--teal); }
.btn { display: inline-block; font: inherit; font-weight: 600; background: var(--teal); color: #fff; border: 0; border-radius: 8px; padding: .7rem 1.3rem; cursor: pointer; margin-top: 1.1rem; }
.btn:hover { background: var(--teal-dark); }
.error { color: #b3261e; font-size: .92rem; margin-top: .8rem; }

.result { margin-top: 1.4rem; border-top: 1px solid var(--line); padding-top: 1.2rem; }
.result[hidden] { display: none; }
.big { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: .8rem; margin-bottom: 1rem; }
.stat { background: var(--soft); border-radius: 10px; padding: .8rem 1rem; }
.stat strong { display: block; font-size: 1.6rem; color: var(--teal-dark); line-height: 1.2; }
.stat span { font-size: .86rem; color: var(--muted); }
.stat.main { background: var(--accent-soft); }
.stat.main strong { color: var(--accent); }
.result .explain { font-size: .96rem; }

/* Tablas */
.table-wrap { overflow-x: auto; margin: 0 0 1.4rem; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; padding: .55rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--teal); color: #fff; font-weight: 600; }
tr:nth-child(even) td { background: var(--soft); }

/* FAQ */
details { border: 1px solid var(--line); border-radius: 10px; padding: .75rem 1rem; margin-bottom: .6rem; }
details summary { font-weight: 600; cursor: pointer; }
details[open] summary { margin-bottom: .5rem; }

.meta { font-size: .88rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 1rem; margin-top: 2.4rem; }
.note { font-size: .9rem; color: var(--muted); }
.todo { background: #fff6d6; padding: 0 .25rem; border-radius: 4px; }

/* Pie */
.site-footer { background: var(--teal-dark); color: #cfe3e7; font-size: .92rem; padding: 2rem 0; }
.site-footer a { color: #fff; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  .nav { gap: .8rem; font-size: .9rem; }
  .calc { padding: 1rem; }
  .hero { padding: 2rem 0 1.8rem; }
}