/* Ziburvo — hoja de estilos común
   Retícula tejida: celdas con borde visible, dobles filetes, tipografía serif */

:root {
  --bg: #f5ece6;
  --bg-alt: #eaddd3;
  --bg-dark: #25304d;
  --ink: #241c19;
  --ink-soft: #7d6c62;
  --ink-inv: #f5ece6;
  --accent: #2f3d63;
  --accent-2: #b05a3c;
  --line: #cbb8ab;
  --line-dark: #4a5573;
  --serif: Georgia, 'Times New Roman', Times, serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --gap-section: 72px;
  --pad-cell: 22px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.65;
  overflow-x: hidden;
}

.wrap {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Retícula de 12 columnas con celdas visibles ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
}

.cells {
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.cells > * {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: var(--pad-cell);
  min-width: 0;
}

.c3  { grid-column: span 3; }
.c4  { grid-column: span 4; }
.c5  { grid-column: span 5; }
.c6  { grid-column: span 6; }
.c7  { grid-column: span 7; }
.c8  { grid-column: span 8; }
.c9  { grid-column: span 9; }
.c12 { grid-column: span 12; }

.cell-empty { background: transparent; }

/* ---------- Cabecera y navegación ---------- */

.site-head {
  border-bottom: 2px solid var(--accent);
  padding: 18px 0 0;
}

.head-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 26px;
  padding-bottom: 14px;
}

.brand {
  font-size: 26px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 2px solid var(--accent-2);
  padding-bottom: 2px;
}

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

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- Hero tejido ---------- */

.hero { padding: 46px 0 0; }

.hero-rule-top,
.hero-rule-bottom {
  border-top: 2px solid var(--accent);
  height: 0;
}

.hero h1 {
  grid-column: span 9;
  font-size: 46px;
  line-height: 1.14;
  font-weight: normal;
  margin: 0;
  padding: 26px 0 28px;
  letter-spacing: -0.01em;
}

.hero-kicker {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 10px;
}

.hero-cells { margin-top: 30px; }

.hero-cells .lead {
  margin: 0;
  font-size: 19px;
}

.hero-list {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 16px;
  color: var(--ink);
}

.hero-list li {
  padding-left: 18px;
  position: relative;
  margin-bottom: 6px;
}

.hero-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--accent);
}

/* ---------- Separadores de doble filete ---------- */

.weave {
  margin: var(--gap-section) 0;
}

.weave::before,
.weave::after {
  content: "";
  display: block;
}

.weave::before {
  border-top: 2px solid var(--accent);
  margin-bottom: 6px;
}

.weave::after {
  border-top: 1px solid var(--accent-2);
}

/* ---------- Bloques de texto ---------- */

section { margin-bottom: var(--gap-section); }

h2 {
  font-size: 29px;
  font-weight: normal;
  line-height: 1.22;
  margin: 0 0 18px;
  max-width: 22em;
}

h3 {
  font-style: italic;
  font-size: 21px;
  font-weight: normal;
  margin: 30px 0 10px;
}

p { margin: 0 0 22px; }

.text-col { max-width: 40em; }

.sec-num {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--accent-2);
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}

a { color: var(--accent); }

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

.band { background: var(--bg-alt); padding: 52px 0; margin-bottom: var(--gap-section); }

/* ---------- Imagen principal ---------- */

.figure-grid { align-items: stretch; }

.figure-grid .img-cell { padding: 12px; }

.figure-grid img {
  display: block;
  width: 100%;
  height: auto;
}

.caption {
  font-family: var(--sans);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0;
}

.caption strong {
  display: block;
  color: var(--accent-2);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 11.5px;
  font-weight: normal;
  margin-bottom: 8px;
}

/* ---------- Listas prácticas / checklists ---------- */

.check {
  list-style: none;
  margin: 0;
  padding: 0;
}

.check li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 12px;
  font-size: 17px;
}

.check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--accent);
  background: transparent;
}

.check-title {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 14px;
}

/* Tabla de colores de caliente en celdas */
.rowline {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.rowline > * { padding: 12px 14px; }

/* ---------- Sección oscura de contraste ---------- */

.dark {
  background: var(--bg-dark);
  color: var(--ink-inv);
  padding: 64px 0;
  margin-bottom: var(--gap-section);
}

.dark h2 { color: var(--ink-inv); }
.dark p { color: #dccfc5; }
.dark .sec-num { color: #d79878; }
.dark a { color: #cdd6ee; }

.dark .cells,
.dark .cells > * { border-color: var(--line-dark); }

.dark .detail-cell { padding: 10px; }

.dark .detail-cell img {
  display: block;
  width: 100%;
  height: auto;
}

.dark .caption { color: #b3a99f; }
.dark .caption strong { color: #d79878; }

.dark .check li { color: #dccfc5; }
.dark .check li::before { border-color: #8e9cc4; }

/* ---------- Composición de About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 3fr 1px 8fr;
  gap: 0 34px;
}

.about-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: sticky;
  top: 24px;
  align-self: start;
}

.about-rail li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 14px;
}

.about-rail li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  background: var(--accent-2);
}

.about-divider { background: var(--line); }

.about-body { max-width: 42em; }

/* ---------- Páginas legales ---------- */

.page-head { padding: 44px 0 0; }

.page-head h1 {
  font-size: 38px;
  font-weight: normal;
  line-height: 1.18;
  margin: 0;
  padding: 22px 0 26px;
  border-top: 2px solid var(--accent);
  border-bottom: 1px solid var(--accent-2);
  max-width: 20em;
}

.legal { max-width: 44em; margin-bottom: var(--gap-section); }

.legal ul { padding-left: 20px; }
.legal li { margin-bottom: 9px; }

.updated {
  font-family: var(--sans);
  font-size: 12.5px;
  color: var(--ink-soft);
}

/* ---------- Pie ---------- */

.site-foot {
  border-top: 2px solid var(--accent);
  padding-top: 6px;
  margin-top: var(--gap-section);
}

.foot-thin {
  border-top: 1px solid var(--accent-2);
  padding-top: 30px;
  padding-bottom: 44px;
}

.foot-grid .fcell { padding: 20px; }

.foot-grid h2 {
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 12px;
  font-weight: normal;
}

.foot-grid p { margin: 0; font-size: 15.5px; }

.foot-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 15.5px;
}

.foot-grid li { margin-bottom: 6px; }

.foot-grid a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line); }
.foot-grid a:hover { color: var(--accent); border-bottom-color: var(--accent); }

.foot-name {
  font-size: 22px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.foot-note {
  font-family: var(--sans);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ---------- Adaptación ---------- */

@media (max-width: 900px) {
  :root { --gap-section: 52px; }
  .hero h1 { font-size: 38px; }
  .about-grid { grid-template-columns: 1fr; gap: 0; }
  .about-divider { display: none; }
  .about-rail {
    position: static;
    border-bottom: 1px solid var(--line);
    padding-bottom: 16px;
    margin-bottom: 26px;
  }
}

@media (max-width: 720px) {
  :root { --gap-section: 44px; --pad-cell: 16px; }
  body { font-size: 17px; }
  .hero { padding-top: 30px; }
  .hero h1 { font-size: 30px; padding: 20px 0 22px; }
  h2 { font-size: 24px; }
  h3 { font-size: 19px; }
  .page-head h1 { font-size: 28px; }
  .c3, .c4, .c5, .c6, .c7, .c8, .c9 { grid-column: span 12; }
  .cell-empty { display: none; }
  .rowline { grid-template-columns: 1fr; }
  .dark, .band { padding: 38px 0; }
  .head-row { flex-direction: column; align-items: flex-start; }
  .site-nav ul { gap: 8px 16px; }
}