/* Tuseliko — hoja de estilos común
   Retícula de 12 columnas con margen izquierdo pautado */

:root {
  --paper: #f0f2e9;
  --paper-alt: #e3e7da;
  --ink-dark: #2b1d1e;
  --text: #1e2119;
  --text-soft: #6c7264;
  --accent: #8c2f2c;
  --ochre: #8a6f1e;
  --rule: rgba(30, 33, 25, 0.16);
  --rule-dark: rgba(240, 242, 233, 0.24);
  --g: 28px;
  --step: 72px;
  --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(--paper);
  color: var(--text);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.9;
  overflow-x: hidden;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 47, 44, 0.45);
  padding-bottom: 1px;
}

a:hover { border-bottom-color: var(--accent); }

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

/* ---------- estructura de banda y retícula ---------- */

.band {
  padding-inline: clamp(20px, 5vw, 44px);
  padding-block: var(--step);
}

.band--alt { background: var(--paper-alt); }

.band--dark {
  background: var(--ink-dark);
  color: var(--paper);
}

.band--dark h2,
.band--dark h3 { color: var(--paper); }

.band--dark .mark { color: #c9a44a; }

.band--dark .caption { color: rgba(240, 242, 233, 0.68); }

.band--dark a { color: #e0b7a6; border-bottom-color: rgba(224, 183, 166, 0.5); }

.grid {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--g);
}

.grid::before {
  content: "";
  position: absolute;
  left: calc(25% - var(--g) / 4);
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(140, 47, 44, 0.38);
}

.band--dark .grid::before { background: rgba(201, 164, 74, 0.5); }

/* columnas */
.col { grid-column: 4 / 10; }       /* texto principal, 6 columnas */
.col-wide { grid-column: 4 / 12; }  /* listas insertadas, 8 columnas */
.mark { grid-column: 1 / 4; }       /* campo izquierdo: iniciales, números, pies */

.mark {
  justify-self: end;
  text-align: right;
  padding-right: 18px;
  font-family: var(--serif);
  color: var(--ochre);
  font-size: 26px;
  line-height: 1.3;
}

.mark--note {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-soft);
}

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

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: normal;
  line-height: 1.3;
  margin: 0;
}

h1 {
  grid-column: 1 / 13;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--g);
  font-size: clamp(30px, 4.4vw, 46px);
  margin-bottom: 36px;
}

h1 .h1-text { grid-column: 4 / 12; }

h2 {
  grid-column: 4 / 10;
  font-size: clamp(23px, 2.6vw, 29px);
  margin-bottom: 18px;
}

h3 {
  grid-column: 4 / 10;
  font-size: 20px;
  margin: 36px 0 10px;
}

.initial {
  grid-column: 1 / 4;
  justify-self: end;
  padding-right: 18px;
  font-family: var(--serif);
  font-size: clamp(60px, 8vw, 92px);
  line-height: 1;
  color: var(--accent);
}

p { margin: 0 0 26px; }

p.lead { font-size: 19px; }

.caption {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-soft);
}

/* ---------- reglas y separadores ---------- */

.hrule {
  grid-column: 4 / 10;
  height: 1px;
  background: var(--rule);
  margin: 0 0 26px;
}

.hrule--wide { grid-column: 4 / 12; }

h2 + .hrule { margin-top: -4px; }

.band--dark .hrule { background: var(--rule-dark); }

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

ul.checks, ol.steps {
  grid-column: 4 / 12;
  margin: 0 0 26px;
  padding-left: 22px;
}

ul.checks { list-style: none; padding-left: 0; }

ul.checks li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
}

ul.checks li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

ol.steps li { margin-bottom: 10px; }

ol.steps li::marker { color: var(--ochre); }

dl.gloss { grid-column: 4 / 12; margin: 0 0 26px; }

dl.gloss dt {
  font-family: var(--serif);
  font-size: 19px;
  margin-top: 22px;
}

dl.gloss dd { margin: 4px 0 0; }

/* ---------- cabecera y navegación ---------- */

.site-header {
  padding: 26px clamp(20px, 5vw, 44px) 0;
  border-bottom: 1px solid var(--rule);
}

.site-header .grid::before { display: none; }

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px 32px;
  padding-bottom: 20px;
}

.wordmark {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--text);
  border-bottom: none;
}

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

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 0;
  padding: 0;
  font-size: 16px;
}

.site-nav a { color: var(--text); border-bottom-color: transparent; }

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

/* ---------- portada ---------- */

.hero { padding-top: calc(var(--step) - 18px); }

.hero .lead-block {
  grid-column: 4 / 10;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 26px 0 0;
}

.figure-main {
  grid-column: 6 / 13;
  margin: 0;
}

.figure-main img { width: 100%; }

.figure-detail {
  grid-column: 4 / 8;
  margin: 0;
}

.figure-detail img { width: 100%; }

.detail-text { grid-column: 8 / 13; }

.band--dark .detail-text h2,
.band--dark .detail-text h3,
.band--dark .detail-text p,
.band--dark .detail-text ul { grid-column: auto; }

.band--dark .detail-text ul.checks { padding-left: 0; }

.band--dark ul.checks li::before { color: #c9a44a; }

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

.site-footer {
  background: var(--paper-alt);
  border-top: 1px solid var(--rule);
  padding: 48px clamp(20px, 5vw, 44px);
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  border-left: 1px solid rgba(140, 47, 44, 0.38);
  padding-left: 24px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--g);
  row-gap: 20px;
  align-items: start;
}

.footer-name {
  grid-column: 1 / 5;
  font-family: var(--serif);
  font-size: 20px;
}

.footer-name span {
  display: block;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.6;
}

.footer-nav { grid-column: 5 / 10; }

.footer-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  font-size: 16px;
  gap: 6px 0;
}

.footer-nav li + li::before {
  content: "/";
  color: var(--ochre);
  padding: 0 10px;
}

.footer-nav a { color: var(--text); border-bottom-color: transparent; }

.footer-nav a:hover { color: var(--accent); border-bottom-color: var(--accent); }

.footer-mail {
  grid-column: 10 / 13;
  text-align: right;
  font-size: 16px;
}

/* ---------- tablet ---------- */

@media (max-width: 1000px) {
  :root { --g: 20px; --step: 60px; }

  .col, h2, h3, .hrule, .hero .lead-block { grid-column: 4 / 12; }
  ul.checks, ol.steps, dl.gloss, .col-wide, .hrule--wide { grid-column: 4 / 13; }
  h1 .h1-text { grid-column: 4 / 13; }
  .figure-main { grid-column: 4 / 13; }
  .figure-detail { grid-column: 4 / 9; }
  .detail-text { grid-column: 9 / 13; }
}

/* ---------- móvil ---------- */

@media (max-width: 720px) {
  :root { --step: 44px; }

  body { font-size: 17px; }

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

  .grid::before { left: 0; }

  .grid > *, h1 .h1-text { grid-column: 1 !important; }
  h1 { display: block; }
  h1 .initial { display: block; }

  .band { padding-inline: 20px; }
  .band > .grid { padding-left: 18px; }

  .mark,
  .initial {
    justify-self: start;
    text-align: left;
    padding-right: 0;
    margin-bottom: 6px;
  }

  .initial { font-size: 54px; line-height: 1.1; }

  .mark { font-size: 20px; }

  h1 { font-size: 28px; margin-bottom: 28px; }

  .figure-detail, .detail-text { grid-column: 1; }

  .figure-detail { margin-bottom: 26px; }

  .footer-inner { grid-template-columns: 1fr; padding-left: 18px; }

  .footer-name, .footer-nav, .footer-mail { grid-column: 1; text-align: left; }

  .footer-nav ul { flex-direction: column; }

  .footer-nav li + li::before { content: none; }
}