/* Estilos de /guias/. Autónomos: no dependen de styles.css ni de main.js.
   Tokens iguales a :root de styles.css. */
:root {
  --bg:      #070C18;
  --bg-2:    #0C1428;
  --ink:     #F2F6FC;
  --ink-2:   #AEBCD4;
  --ink-3:   #6F7F9C;
  --accent:  #4A90D9;
  --gold:    #C9A35B;
  --line:    rgba(242,246,252,.12);
  --display: "Bodoni Moda", Georgia, "Times New Roman", serif;
  --sans:    "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono:    "Space Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(ellipse 90% 40% at 50% 0%, #16244A 0%, transparent 70%),
    var(--bg);
  background-repeat: no-repeat;
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
a:focus-visible, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { max-width: 44rem; margin: 0 auto; padding: 0 1.25rem; }

/* Cabecera */
.g-top { border-bottom: 1px solid var(--line); }
.g-top .wrap {
  max-width: 64rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 4.5rem;
}
.g-top img { display: block; width: 132px; height: auto; }

.g-actions { display: flex; align-items: center; gap: .9rem; }
.g-back {
  display: inline-flex; align-items: center; gap: .45rem;
  font-size: .88rem; font-weight: 500; color: var(--ink-2); text-decoration: none;
  transition: color .25s;
}
.g-back:hover { color: var(--gold); }
.g-back .corta { display: none; }

/* Botones */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .7rem 1.3rem; border-radius: 100px;
  font-size: .9rem; font-weight: 600; text-decoration: none; line-height: 1.2;
  transition: transform .25s cubic-bezier(0.16,1,0.3,1), background-color .25s, border-color .25s;
}
.btn:hover { transform: translateY(-2px); }
.btn-gold { background: var(--gold); color: #14100A; }
.btn-gold:hover { background: #E0C48C; color: #14100A; }
.btn-ghost { border: 1px solid var(--line); color: var(--ink-2); }
.btn-ghost:hover { border-color: var(--accent); color: var(--ink); }

/* Migas */
.crumbs { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; color: var(--ink-3); margin: 2.5rem 0 1.5rem; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem; }
.crumbs li + li::before { content: "/"; margin-right: .4rem; color: var(--ink-3); }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--gold); }

/* Artículo */
.kicker { font-family: var(--mono); font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin: 0 0 1rem; }
h1 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(2rem, 6vw, 3rem); line-height: 1.12; letter-spacing: -.01em;
  margin: 0 0 1.25rem; text-wrap: balance;
}
.lede { color: var(--ink-2); font-size: 1.15rem; margin: 0 0 1.5rem; text-wrap: pretty; }
.meta { font-size: .85rem; color: var(--ink-3); margin: 0 0 2.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }

article h2 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(1.45rem, 4vw, 1.85rem); line-height: 1.25;
  margin: 3rem 0 1rem; text-wrap: balance;
}
article h3 { font-size: 1.1rem; font-weight: 700; margin: 2rem 0 .5rem; }
article p, article li { color: var(--ink-2); }
article strong { color: var(--ink); font-weight: 600; }
article ul, article ol { padding-left: 1.25rem; }
article li { margin: .35rem 0; }

.note {
  border-left: 3px solid var(--gold);
  background: var(--bg-2);
  padding: 1rem 1.25rem; margin: 1.75rem 0; border-radius: 0 10px 10px 0;
}
.note p { margin: 0; }
.note p + p { margin-top: .6rem; }

.formula {
  font-family: var(--mono); font-size: .9rem; color: var(--ink);
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px;
  padding: 1rem 1.25rem; margin: 1.25rem 0; overflow-x: auto; white-space: pre;
}

.table-wrap { overflow-x: auto; margin: 1.5rem 0; border: 1px solid var(--line); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 32rem; }
th, td { text-align: left; padding: .7rem .9rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); font-weight: 400; background: var(--bg-2); }
td { color: var(--ink-2); }
tr:last-child td { border-bottom: 0; }

/* Llamado final */
.cta {
  margin: 3.5rem 0 2rem; padding: 2rem 1.5rem; text-align: center;
  border: 1px solid var(--line); border-radius: 16px; background: var(--bg-2);
}
.cta h2 { margin-top: 0; }
.cta p { color: var(--ink-2); max-width: 32rem; margin: 0 auto 1.5rem; }
.cta .actions { display: flex; flex-wrap: wrap; gap: .75rem; justify-content: center; }

.related { margin: 2.5rem 0; }
.related h2 { font-size: 1.25rem; margin: 0 0 .75rem; font-family: var(--display); font-weight: 500; }
.related ul { list-style: none; padding: 0; margin: 0; }
.related li { border-top: 1px solid var(--line); padding: .8rem 0; }

/* Índice de guías */
.cards { list-style: none; padding: 0; margin: 2rem 0; display: grid; gap: 1rem; }
.card {
  display: block; text-decoration: none; color: inherit;
  border: 1px solid var(--line); border-radius: 14px; padding: 1.4rem 1.4rem 1.2rem; background: var(--bg-2);
  transition: border-color .25s, transform .25s cubic-bezier(0.16,1,0.3,1);
}
.card:hover { border-color: var(--gold); transform: translateY(-2px); color: inherit; }
.card .kicker { margin-bottom: .6rem; }
.card h2 { font-family: var(--display); font-weight: 500; font-size: 1.35rem; line-height: 1.25; margin: 0 0 .5rem; color: var(--ink); }
.card p { margin: 0; color: var(--ink-2); font-size: .95rem; }

/* Pie */
.g-foot { border-top: 1px solid var(--line); margin-top: 3rem; padding: 2rem 0 2.5rem; font-size: .85rem; color: var(--ink-3); }
.g-foot p { margin: .25rem 0; }
.g-foot a { color: var(--ink-2); }

@media (prefers-reduced-motion: reduce) {
  .btn, .card { transition: none; }
  .btn:hover, .card:hover { transform: none; }
}

@media (max-width: 560px) {
  /* En móvil no caben logo + "Volver al inicio" + botón: el texto se acorta */
  .g-back .larga { display: none; }
  .g-back .corta { display: inline; }
  .g-actions { gap: .6rem; }
}

@media (max-width: 480px) {
  .g-top .btn { padding: .6rem 1rem; font-size: .82rem; }
  .g-top img { width: 112px; }
  .g-back { font-size: .82rem; }
}