/* Kodeto — hoja de estilos común */

:root {
  --paper: #f6f1e7;
  --paper-alt: #ece4d6;
  --ink: #12182b;
  --ink-soft: #6b6858;
  --deep: #1a2340;
  --gold: #e2a93b;
  --clay: #b4472f;
  --hair: #cfc5b0;
  --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-alt);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
  overflow-x: hidden;
}

/* ---------- lámina ---------- */

.sheet {
  max-width: 1160px;
  margin: 44px auto;
  padding: 46px 48px 60px;
  background: var(--paper);
  border: 1px solid var(--gold);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 26px;
  row-gap: 26px;
}

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

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

h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0;
}

h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  line-height: 1.25;
  margin: 0 0 14px;
}

h3 {
  font-size: 1.12rem;
  line-height: 1.35;
  margin: 26px 0 8px;
}

p { margin: 0 0 16px; max-width: 68ch; }

.lead { font-size: 1.06rem; }

.num {
  display: block;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--clay);
  margin-bottom: 8px;
}

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

a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--gold); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

ul, ol { margin: 0 0 18px; padding-left: 20px; max-width: 66ch; }
li { margin-bottom: 7px; }
li::marker { color: var(--gold); }

/* ---------- cabecera ---------- */

.masthead { margin-bottom: 30px; }

.masthead-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hair);
}

.wordmark {
  font-family: var(--serif);
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.masthead-note { font-size: 12px; color: var(--ink-soft); }

.nav-main ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 12px 0 0;
  padding: 0;
  font-size: 14px;
}

.nav-main li { margin: 0; }
.nav-main a { text-decoration: none; padding-bottom: 2px; border-bottom: 1px solid transparent; }
.nav-main a:hover { border-bottom-color: var(--gold); }
.nav-main a[aria-current="page"] { border-bottom-color: var(--clay); }

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

.hero-title { grid-column: 1 / 9; }
.hero-title p { margin-top: 20px; }

.card {
  border: 1px solid var(--hair);
  padding: 16px 18px;
  background: transparent;
}

.card dl { margin: 0; font-size: 13px; line-height: 1.65; }
.card dt { color: var(--clay); font-size: 11.5px; letter-spacing: 0.1em; }
.card dd { margin: 0 0 12px; color: var(--ink); }
.card dd:last-child { margin-bottom: 0; }
.card p { font-size: 13px; line-height: 1.7; margin: 0 0 10px; }
.card p:last-child { margin-bottom: 0; }
.card h3, .card-h { margin: 0 0 10px; font-size: 1rem; font-family: var(--serif); font-weight: 400; }

.hero-card { grid-column: 9 / 13; align-self: start; }

.hero-figure { grid-column: 1 / 6; margin: 0; }
.hero-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--hair); }

.hero-aside { grid-column: 7 / 12; align-self: end; }
.hero-aside p { font-size: 12px; color: var(--ink-soft); line-height: 1.7; }

/* ---------- ritmo y separadores ---------- */

.rule {
  position: relative;
  height: 1px;
  background: var(--hair);
  border: 0;
  margin: 88px 0;
}

.rule::before, .rule::after {
  content: "";
  position: absolute;
  top: -6px;
  width: 1px;
  height: 13px;
  background: var(--clay);
}

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

.rule-tabbed { margin-bottom: 34px; }

.tab-out {
  grid-column: 9 / 13;
  border: 1px solid var(--hair);
  border-left: 2px solid var(--gold);
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
  align-self: start;
}

.tab-out strong { color: var(--ink); font-weight: 600; }

.block { margin: 0; }
.prose { grid-column: 1 / 8; }
.side { grid-column: 9 / 13; align-self: start; }

.band { background: var(--paper-alt); margin: 0 -48px; padding: 52px 48px; }
.band + .rule { margin-top: 0; }

/* ---------- sección de contraste ---------- */

.deep {
  background: var(--deep);
  color: var(--paper);
  margin: 0 -48px;
  padding: 64px 48px 66px;
}

.deep h2, .deep h3 { color: var(--paper); }
.deep .num { color: var(--gold); }
.deep .caption { color: #b9b6a6; }
.deep li::marker { color: var(--gold); }
.deep a { color: var(--paper); text-decoration-color: var(--gold); }
.deep a:focus-visible { outline-color: var(--gold); }

.deep-figure { grid-column: 2 / 6; margin: 0; }
.deep-figure img { display: block; width: 100%; height: auto; border: 1px solid #3a4362; }
.deep-figure figcaption { margin-top: 10px; }
.deep-text { grid-column: 7 / 13; }
.deep-text p { color: #ded9c9; }
.deep-text li { color: #ded9c9; }

/* ---------- listas de trabajo ---------- */

.checklist { list-style: none; padding-left: 0; }
.checklist li { position: relative; padding-left: 22px; }
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 10px;
  height: 1px;
  background: var(--gold);
}

.index-list { list-style: none; padding-left: 0; }
.index-list li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--hair);
}
.index-list li:first-child { border-top: 1px solid var(--hair); }
.index-list span { color: var(--clay); font-size: 12px; padding-top: 4px; }

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

.site-footer {
  max-width: 1160px;
  margin: 0 auto 54px;
  padding: 0 48px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  padding-bottom: 14px;
}

.footer-name { font-family: var(--serif); font-size: 1.2rem; }
.footer-mail { font-size: 14px; }

.footer-line { height: 1px; background: var(--hair); border: 0; margin: 0 0 16px; }

.nav-footer ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 24px;
  margin: 0 0 14px;
  padding: 0;
  font-size: 14px;
}

.nav-footer li { margin: 0; }
.nav-footer a { text-decoration: none; border-bottom: 1px solid transparent; }
.nav-footer a:hover { border-bottom-color: var(--gold); }

.footer-note { font-size: 12px; color: var(--ink-soft); max-width: 74ch; margin: 0; }

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

.page-head { grid-column: 1 / 9; }
.page-head p { margin-top: 18px; }
.page-card { grid-column: 9 / 13; align-self: start; }
.stack { grid-column: 9 / 13; align-self: start; display: grid; gap: 18px; }

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

@media (max-width: 900px) {
  body { font-size: 16.5px; }
  .sheet { margin: 18px; padding: 26px 20px 36px; }
  .grid { grid-template-columns: 1fr; column-gap: 0; row-gap: 22px; }
  .hero-title, .hero-card, .hero-figure, .hero-aside,
  .prose, .side, .tab-out, .deep-figure, .deep-text,
  .page-head, .page-card, .stack { grid-column: 1 / -1; }
  .hero-figure { max-width: 420px; }
  .deep-figure { max-width: 420px; }
  .rule { margin: 52px 0; }
  .band, .deep { margin: 0 -20px; padding-left: 20px; padding-right: 20px; }
  .band { padding-top: 34px; padding-bottom: 34px; }
  .deep { padding-top: 42px; padding-bottom: 44px; }
  .site-footer { padding: 0 18px; margin-bottom: 34px; }
  p, ul, ol { max-width: none; }
}

@media (max-width: 520px) {
  .nav-main ul { gap: 6px 18px; }
  h1 { font-size: 2.05rem; }
}