/* Trelilmeti — hoja de estilo común */

:root {
  --paper: #f7f3ea;
  --paper-mid: #eae4d8;
  --paper-deep: #ded5c4;
  --ink: #241b16;
  --ink-soft: #786b5d;
  --dark: #43221f;
  --accent: #8a2c25;
  --gold: #8a6a24;
  --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(--ink);
  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;
}

/* ---------- rejilla de 12 columnas ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 24px;
  max-width: 1240px;
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
}

.band { padding: 88px 0; }
.band-tight { padding: 52px 0; }

.tone-paper { background: var(--paper); }
.tone-mid { background: var(--paper-mid); }
.tone-deep { background: var(--paper-deep); }

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

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

.tone-dark .caption,
.tone-dark .note { color: #cbb9a6; }

.tone-dark a { color: #e6b98f; }

/* desplazamiento escalonado de las secciones */
.col { grid-column: 1 / span 6; }
.step-1 .col { grid-column: 2 / span 6; }
.step-2 .col { grid-column: 3 / span 6; }
.step-3 .col { grid-column: 4 / span 6; }

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

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  margin: 0;
}

h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.9rem);
  line-height: 1.07;
  letter-spacing: -0.01em;
  max-width: 15ch;
}

h2 {
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  line-height: 1.18;
  margin-bottom: 22px;
}

h3 {
  font-style: italic;
  font-size: 1.22rem;
  line-height: 1.35;
  margin: 34px 0 10px;
}

p { margin: 0 0 20px; }
p:last-child { margin-bottom: 0; }

.lead { font-size: 1.12rem; }

.label {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.18em;
  line-height: 1.6;
  color: var(--gold);
  margin: 0 0 14px;
}

.marker {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
  display: block;
  margin-bottom: 12px;
}

.caption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 12px 0 0;
}

.note {
  font-size: 14.5px;
  color: var(--ink-soft);
}

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

ul, ol { margin: 0 0 20px; padding-left: 20px; }
li { margin-bottom: 9px; }
li::marker { color: var(--accent); }

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

.plain li {
  padding-left: 20px;
  position: relative;
}

.plain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82em;
  width: 10px;
  height: 1px;
  background: var(--accent);
}

.topics {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  column-gap: 24px;
}

.topics li {
  padding: 7px 0;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--ink-soft);
  margin: 0;
}

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

.topbar { background: var(--paper-mid); }

.topbar .grid {
  padding-top: 20px;
  padding-bottom: 20px;
  align-items: baseline;
}

.brand {
  grid-column: 1 / span 3;
  font-family: var(--serif);
  font-size: 1.32rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}

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

.nav {
  grid-column: 4 / span 9;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 28px;
}

.nav a {
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

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

/* ---------- hero por capas ---------- */

.hero-title {
  background: var(--paper);
  padding-top: 118px;
  padding-bottom: 46px;
}

.hero-title .col {
  grid-column: 1 / span 9;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 210px;
}

.hero-intro {
  background: var(--paper-deep);
  padding: 64px 0 60px;
}

.hero-intro .col { grid-column: 1 / span 6; }

.hero-intro .side {
  grid-column: 8 / span 5;
  align-self: end;
}

/* ---------- imagen principal ---------- */

.figure-main {
  grid-column: 4 / span 9;
  margin: 0;
}

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

/* ---------- sección de contraste con imagen de detalle ---------- */

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

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

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

/* ---------- índice de contenidos ---------- */

.index-list {
  list-style: none;
  padding: 0;
  margin: 0;
  columns: 2;
  column-gap: 32px;
}

.index-list li {
  margin: 0 0 10px;
  break-inside: avoid;
}

.index-list a { color: var(--ink); }
.index-list a:hover { color: var(--accent); }

/* ---------- contacto ---------- */

.mail {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.6vw, 1.7rem);
}

/* ---------- pie de página ---------- */

.site-footer {
  background: var(--dark);
  color: var(--paper);
  margin-top: 0;
}

.footer-name {
  grid-column: 1 / -1;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 12.5vw, 9rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 0;
  padding-top: 64px;
  padding-bottom: 40px;
  color: var(--paper);
}

.footer-cols {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: 24px;
  row-gap: 32px;
  padding-bottom: 60px;
}

.footer-col::before {
  content: "";
  display: block;
  width: 46px;
  height: 1px;
  background: var(--gold);
  margin-bottom: 16px;
}

.footer-col h2 {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: #cbb9a6;
  margin: 0 0 12px;
  line-height: 1.6;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li { margin-bottom: 7px; }

.footer-col a {
  color: var(--paper);
  text-decoration: none;
  font-size: 15px;
}

.footer-col a:hover {
  color: #e6b98f;
  text-decoration: underline;
}

.footer-col p {
  font-size: 14.5px;
  color: #cbb9a6;
  margin: 0;
}

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

.page-head {
  background: var(--paper-mid);
  padding-top: 84px;
  padding-bottom: 52px;
}

.page-head .col { grid-column: 1 / span 8; }

.page-head h1 { max-width: 20ch; }

/* ---------- adaptación a pantallas medianas y estrechas ---------- */

@media (max-width: 1000px) {
  .grid { padding-left: 30px; padding-right: 30px; column-gap: 20px; }
  .band { padding: 68px 0; }
  .col,
  .step-1 .col,
  .step-2 .col,
  .step-3 .col { grid-column: 1 / span 8; }
  .hero-title .col { grid-column: 1 / -1; }
  .hero-intro .col { grid-column: 1 / span 7; }
  .hero-intro .side { grid-column: 1 / -1; margin-top: 34px; }
  .figure-main { grid-column: 3 / span 10; }
  .detail-figure { grid-column: 1 / span 6; }
  .detail-text { grid-column: 1 / -1; margin-top: 32px; }
  .page-head .col { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  body { font-size: 16.5px; }
  .grid { padding-left: 20px; padding-right: 20px; }
  .band { padding: 52px 0; }
  .band-tight { padding: 40px 0; }
  .col,
  .step-1 .col,
  .step-2 .col,
  .step-3 .col,
  .figure-main,
  .detail-figure,
  .brand,
  .nav { grid-column: 1 / -1; }
  .nav { justify-content: flex-start; margin-top: 12px; gap: 10px 20px; }
  .topbar .grid { padding-bottom: 16px; }
  .hero-title { padding-top: 56px; padding-bottom: 30px; }
  .hero-title .col { min-height: 0; }
  .hero-intro { padding: 44px 0 44px; }
  .index-list { columns: 1; }
  .footer-cols { grid-template-columns: 1fr; padding-bottom: 44px; }
  .footer-name { padding-top: 44px; padding-bottom: 28px; }
}