/* Soteme — hoja de estilo común */

:root {
  --paper: #f0f2e9;
  --paper-alt: #e3e7da;
  --dark: #2b1d1e;
  --ink: #1e2119;
  --ink-soft: #6c7264;
  --ink-light: #f0f2e9;
  --accent: #8c2f2c;
  --accent-2: #8a6f1e;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --rhythm: 76px;
  --gutter: 26px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
  overflow-x: hidden;
}

p { margin: 0 0 1.25em; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 47, 44, 0.4);
}

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

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

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

/* ---------- rejilla de 12 columnas con lomo ---------- */

.sheet {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 22px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--gutter);
}

.spine {
  grid-column: 1;
  position: relative;
  min-height: 100%;
}

.spine::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    var(--accent) 0,
    var(--accent) 9px,
    transparent 9px,
    transparent 20px
  );
}

.folio {
  grid-column: 1;
  font-size: 13px;
  line-height: 1.4;
  color: var(--accent-2);
  letter-spacing: 0.02em;
  padding-top: 6px;
}

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

.site-head {
  border-bottom: 1px solid rgba(30, 33, 25, 0.16);
  background: var(--paper);
}

.site-head .sheet {
  align-items: baseline;
  padding-top: 22px;
  padding-bottom: 20px;
  row-gap: 12px;
}

.brand {
  grid-column: 1 / span 4;
  font-family: var(--serif);
  font-size: 27px;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--ink);
  border-bottom: 0;
}

.brand span {
  display: block;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 7px;
}

.site-nav {
  grid-column: 5 / span 8;
  justify-self: end;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
}

.site-nav a {
  font-size: 14.5px;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

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

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

.hero {
  padding: calc(var(--rhythm) * 0.85) 0 var(--rhythm);
}

.hero-body { grid-column: 2 / span 10; }

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 55px;
  line-height: 1.05;
  margin: 0 0 24px;
  max-width: 15ch;
}

.rule-double {
  border: 0;
  border-top: 1px solid var(--ink);
  height: 4px;
  border-bottom: 1px solid rgba(30, 33, 25, 0.35);
  margin: 0 0 24px;
  max-width: 320px;
}

.hero-lead {
  grid-column: 2 / span 6;
  font-size: 19.5px;
  line-height: 1.7;
  color: var(--ink);
}

.hero-note {
  grid-column: 9 / span 4;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
  border-left: 1px solid rgba(138, 111, 30, 0.5);
  padding-left: 16px;
  align-self: end;
}

/* ---------- figura principal ---------- */

.figure-main {
  grid-column: 7 / span 6;
  margin: 0 0 var(--rhythm);
}

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

figcaption {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-top: 10px;
  text-align: left;
}

.figure-side {
  grid-column: 2 / span 4;
  align-self: end;
  margin-bottom: var(--rhythm);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- secciones ---------- */

.band { padding: var(--rhythm) 0; }
.band-alt { background: var(--paper-alt); }

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

.band-dark .folio { color: #c9a94a; }
.band-dark .spine::before { background: repeating-linear-gradient(to bottom, #c9a94a 0, #c9a94a 9px, transparent 9px, transparent 20px); }
.band-dark h2 { color: var(--ink-light); }
.band-dark figcaption { color: #b8bdaa; }
.band-dark a { color: #e0b46a; border-bottom-color: rgba(224, 180, 106, 0.45); }

.folio-line {
  grid-column: 2 / span 11;
  border-top: 1px solid rgba(30, 33, 25, 0.22);
  margin-bottom: 30px;
  height: 0;
}

.band-dark .folio-line { border-top-color: rgba(240, 242, 233, 0.28); }

h2 {
  grid-column: 2 / span 8;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 31px;
  line-height: 1.15;
  margin: 0 0 22px;
}

h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 21px;
  line-height: 1.25;
  margin: 34px 0 12px;
}

.col { grid-column: 2 / span 6; }
.col-wide { grid-column: 2 / span 8; }

.lead {
  grid-column: 2 / span 8;
  font-size: 19.5px;
  line-height: 1.7;
}

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

.col ul,
.col ol,
.col-wide ul,
.col-wide ol {
  margin: 0 0 1.4em;
  padding-left: 20px;
}

.col li,
.col-wide li { margin-bottom: 9px; }

.col ul li::marker,
.col-wide ul li::marker { color: var(--accent); }

.col ol li::marker,
.col-wide ol li::marker {
  color: var(--accent-2);
  font-family: var(--serif);
}

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

.check li {
  position: relative;
  padding-left: 26px;
}

.check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 13px;
  height: 2px;
  background: var(--accent);
}

/* ---------- separador tipográfico ---------- */

.sep {
  grid-column: 2 / span 11;
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 46px 0;
}

.sep span {
  width: 16px;
  height: 2px;
  background: var(--accent);
  display: block;
}

.band-dark .sep span { background: #c9a94a; }

/* ---------- bloque oscuro con imagen vertical ---------- */

.detail-figure {
  grid-column: 2 / span 4;
  margin: 0;
}

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

.detail-text { grid-column: 7 / span 6; }

/* ---------- glosario ---------- */

.glossary {
  grid-column: 2 / span 8;
  margin: 0;
}

.glossary dt {
  font-family: var(--serif);
  font-size: 19px;
  margin-top: 24px;
  color: var(--ink);
}

.glossary dd {
  margin: 6px 0 0;
  color: var(--ink);
}

/* ---------- tabla de referencia ---------- */

.table-wrap {
  grid-column: 2 / span 8;
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 15.5px;
  min-width: 420px;
}

th, td {
  text-align: left;
  padding: 11px 14px 11px 0;
  border-bottom: 1px solid rgba(30, 33, 25, 0.18);
  vertical-align: top;
}

th {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- páginas interiores ---------- */

.page-head { padding: calc(var(--rhythm) * 0.8) 0 12px; }

.page-head h1 {
  grid-column: 2 / span 9;
  font-family: var(--serif);
  font-weight: 400;
  font-size: 42px;
  line-height: 1.08;
  margin: 0 0 20px;
}

.page-head .rule-double { grid-column: 2 / span 9; }

.dropcap::first-letter {
  float: left;
  font-family: var(--serif);
  font-size: 62px;
  line-height: 0.82;
  padding: 6px 10px 0 0;
  color: var(--accent);
}

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

.site-foot {
  border-top: 1px solid rgba(30, 33, 25, 0.2);
  padding: 54px 0 60px;
  text-align: center;
}

.foot-inner {
  grid-column: 2 / span 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.foot-name {
  font-family: var(--serif);
  font-size: 24px;
  line-height: 1;
}

.foot-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.foot-nav li { display: flex; align-items: center; }

.foot-nav li + li::before {
  content: "";
  width: 1px;
  height: 13px;
  background: rgba(30, 33, 25, 0.3);
  margin: 0 14px;
}

.foot-nav a {
  font-size: 14.5px;
  color: var(--ink);
  border-bottom: 1px solid transparent;
}

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

.foot-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0;
}

/* ---------- adaptación ---------- */

@media (max-width: 900px) {
  :root { --rhythm: 56px; --gutter: 18px; }

  .hero h1 { font-size: 42px; }
  .page-head h1 { font-size: 34px; }
  h2 { font-size: 27px; }

  .brand { grid-column: 1 / span 12; }
  .site-nav { grid-column: 1 / span 12; justify-self: start; }

  .hero-body,
  .hero-lead,
  .hero-note,
  .figure-main,
  .figure-side,
  .folio-line,
  h2,
  .col,
  .col-wide,
  .lead,
  .glossary,
  .table-wrap,
  .detail-figure,
  .detail-text,
  .sep,
  .foot-inner,
  .page-head h1,
  .page-head .rule-double {
    grid-column: 1 / span 12;
  }

  .folio {
    grid-column: 1 / span 12;
    padding-top: 0;
    margin-bottom: 8px;
  }

  .spine { display: none; }

  .figure-main,
  .figure-side { margin-bottom: 34px; }

  .detail-figure { max-width: 340px; margin-bottom: 30px; }

  .hero-note {
    border-left: 0;
    border-top: 1px solid rgba(138, 111, 30, 0.5);
    padding: 14px 0 0;
    margin-top: 10px;
  }
}

@media (max-width: 560px) {
  :root { --rhythm: 46px; }
  body { font-size: 16.5px; }
  .hero h1 { font-size: 33px; }
  .page-head h1 { font-size: 28px; }
  h2 { font-size: 24px; }
  .hero-lead, .lead { font-size: 18px; }
  .site-nav ul { gap: 4px 16px; }
}