/* Gigeri — hoja de estilo común
   Paleta: azul carbón, limón y gris */

:root {
  --bg: #161a20;
  --bg-alt: #1e232b;
  --bg-contrast: #eef1f4;
  --fg: #e4e8ec;
  --fg-dim: #8c95a0;
  --fg-contrast: #161a20;
  --accent: #d6c02a;
  --accent-2: #6f8fa8;
  --line: rgba(140, 149, 160, 0.32);
  --pad: 56px;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.72;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover { text-decoration-thickness: 2px; }

a:focus-visible,
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- estructura general ---------- */

.page {
  max-width: 1220px;
  margin: 0 auto;
  padding: 40px 40px 0;
}

.slab {
  background: var(--bg-alt);
  border: 1px solid rgba(214, 192, 42, 0.38);
  padding: var(--pad);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0 24px;
  align-items: start;
}

.band + .band { margin-top: 88px; }

.col-text { grid-column: 1 / 8; }
.col-side { grid-column: 9 / 13; }
.col-wide { grid-column: 1 / 10; }
.hero-head { grid-column: 1 / 9; }
.hero-card { grid-column: 9 / 13; }
.col-full { grid-column: 1 / 13; }

/* ---------- navegación superior ---------- */

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 28px;
  padding-bottom: 26px;
}

.wordmark {
  font-family: var(--serif);
  font-size: 21px;
  letter-spacing: 0.04em;
  color: var(--fg);
  text-decoration: none;
}

.wordmark:hover { color: var(--accent); }

.topnav ul,
.footnav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 0;
  padding: 0;
}

.topnav a,
.footnav a {
  font-size: 14px;
  color: var(--fg-dim);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
}

.topnav a:hover,
.footnav a:hover { color: var(--fg); border-bottom-color: var(--accent); }

.topnav [aria-current='page'],
.footnav [aria-current='page'] {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

/* ---------- tipografía ---------- */

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  text-transform: none;
}

h1 {
  font-size: clamp(32px, 4.6vw, 52px);
  line-height: 1.14;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(24px, 2.6vw, 31px);
  line-height: 1.24;
  margin: 0 0 16px;
}

h3 {
  font-style: italic;
  font-size: 21px;
  line-height: 1.35;
  margin: 30px 0 10px;
}

p { margin: 0 0 18px; max-width: 68ch; }

.lead { font-size: 19px; color: var(--fg); }

.meta {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--accent-2);
  margin: 0 0 14px;
  line-height: 1.5;
}

.caption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--fg-dim);
  margin: 12px 0 0;
  max-width: 34ch;
}

/* ---------- listas ---------- */

ul.marked, ol.steps {
  margin: 0 0 20px;
  padding-left: 20px;
  max-width: 66ch;
}

ul.marked { list-style: square; }
ul.marked li::marker { color: var(--accent); }
ol.steps li::marker { color: var(--accent-2); font-size: 14px; }
ul.marked li, ol.steps li { margin-bottom: 9px; padding-left: 4px; }

/* ---------- fichas laterales ---------- */

.card {
  border: 1px solid rgba(111, 143, 168, 0.45);
  padding: 16px 18px 6px;
  margin-bottom: 22px;
}

.card h2, .card h3 { font-size: 18px; margin: 0 0 10px; font-style: normal; }

.card dl { margin: 0; }

.card dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent-2);
  margin-bottom: 2px;
}

.card dd {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.55;
}

.card p { font-size: 14.5px; line-height: 1.6; margin-bottom: 12px; }

.card--hero { margin-bottom: 0; }

/* ---------- separadores ---------- */

.rule {
  position: relative;
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

.rule::before,
.rule::after {
  content: '';
  position: absolute;
  top: -5px;
  width: 1px;
  height: 11px;
  background: var(--accent-2);
}

.rule::before { left: 0; }
.rule::after { right: 0; }

.band > .rule { margin-bottom: 40px; }

.rule-card .rule { grid-column: 1 / 8; grid-row: 1; }
.rule-card .col-text { grid-column: 1 / 8; grid-row: 2; }
.rule-card .card { grid-column: 9 / 13; grid-row: 1 / span 2; margin-bottom: 0; }

/* ---------- imágenes ---------- */

.figure-main { grid-column: 1 / 6; margin: 0; }
.figure-main img { border: 1px solid rgba(228, 232, 236, 0.22); }
.figure-note { grid-column: 7 / 11; }

.plate {
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 28px 30px;
}

.plate p:last-child { margin-bottom: 0; }

/* ---------- sección contrastada ---------- */

.invert {
  background: var(--bg-contrast);
  color: var(--fg-contrast);
  margin-left: calc(-1 * var(--pad));
  margin-right: calc(-1 * var(--pad));
  padding: 64px var(--pad);
}

.invert h2, .invert h3 { color: var(--fg-contrast); }
.invert .meta { color: #4d5b68; }
.invert .caption { color: #55606c; }
.invert a { color: #7a6a00; }
.invert .card { border-color: rgba(22, 26, 32, 0.28); }
.invert .card dt { color: #4d5b68; }
.invert ul.marked li::marker { color: #8a7a10; }
.invert .rule { background: rgba(22, 26, 32, 0.22); }
.invert .rule::before, .invert .rule::after { background: #6f8fa8; }

.invert .figure-detail { grid-column: 8 / 13; margin: 0; }
.invert .figure-detail img { border: 1px solid rgba(22, 26, 32, 0.25); }
.invert .detail-text { grid-column: 1 / 7; }
.invert .caption { max-width: 40ch; }

/* ---------- pie ---------- */

.footer {
  max-width: 1220px;
  margin: 0 auto;
  padding: 64px 40px 56px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px 24px;
  padding-bottom: 16px;
}

.footer-name { font-family: var(--serif); font-size: 20px; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px 40px;
  padding-top: 18px;
}

.footer-note {
  font-size: 13px;
  color: var(--fg-dim);
  max-width: 46ch;
  margin: 0;
}

/* ---------- adaptación a pantallas estrechas ---------- */

@media (max-width: 900px) {
  :root { --pad: 28px; }

  .page { padding: 20px 16px 0; }
  .footer { padding: 40px 16px 44px; }

  .grid { grid-template-columns: 1fr; gap: 0; }

  .col-text, .col-side, .col-wide, .col-full, .hero-head, .hero-card,
  .figure-main, .figure-note,
  .rule-card .rule, .rule-card .card,
  .invert .figure-detail, .invert .detail-text { grid-column: auto; }

  .band + .band { margin-top: 52px; }
  .band > .rule { margin-bottom: 28px; }
  .rule-card .rule, .rule-card .col-text, .rule-card .card { grid-row: auto; }
  .rule-card .card { margin-top: 24px; }
  .hero-card { margin-top: 26px; }

  .figure-main { margin-bottom: 20px; }
  .invert { padding: 40px var(--pad); }
  .invert .figure-detail { margin-bottom: 22px; }

  .col-side .card:last-child { margin-bottom: 0; }

  h3 { font-size: 19px; }
  body { font-size: 16.5px; }
  .caption, .footer-note { max-width: none; }
}

@media (max-width: 520px) {
  .topbar { flex-direction: column; align-items: flex-start; }
  .topnav ul, .footnav ul { gap: 4px 18px; }
}