/* Zapobraze — hoja de estilos común */

:root {
  --paper: #f2ebe0;
  --paper-alt: #e7d9c6;
  --ink: #241a14;
  --ink-soft: #6e5b4c;
  --dark: #4a2c1e;
  --accent: #c05a2b;
  --accent-2: #6b7a5a;
  --sans: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
  --rhythm: 76px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

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

.band--dark :focus-visible { outline-color: var(--paper); }

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

.wrap {
  width: min(1180px, 100% - 56px);
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 24px;
}

.col-main { grid-column: 2 / 8; }
.col-wide { grid-column: 2 / 10; }
.col-head { grid-column: 2 / 11; }
.col-full { grid-column: 1 / -1; }

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

.site-head {
  border-bottom: 1px solid rgba(36, 26, 20, 0.2);
}

.head-inner {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 28px;
  padding: 20px 0 16px;
}

.wordmark {
  font-family: var(--sans);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
}

.site-nav a {
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 2px solid transparent;
}

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

/* ---------- bandas y ritmo de página ---------- */

.band { padding: var(--rhythm) 0; }
.band--tint { background: var(--paper-alt); }
.band--dark { background: var(--dark); color: var(--paper); }
.band--dark h2, .band--dark h3 { color: var(--paper); }

.rubric {
  grid-column: 1 / -1;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent-2);
  border-bottom: 1px solid rgba(110, 91, 76, 0.4);
  padding-bottom: 8px;
  margin-bottom: 34px;
}

.band--dark .rubric {
  color: #b9c2a6;
  border-bottom-color: rgba(242, 235, 224, 0.28);
}

/* ---------- titulares ---------- */

h1, h2, h3 {
  font-family: var(--sans);
  font-weight: 800;
  margin: 0;
}

h1 {
  font-size: clamp(38px, 6.1vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.035em;
}

h1 .line { display: block; }

h2 {
  font-size: clamp(25px, 3.1vw, 36px);
  line-height: 1.06;
  letter-spacing: -0.022em;
  margin-bottom: 20px;
}

h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 30px 0 10px;
}

p { margin: 0 0 18px; }
p:last-child { margin-bottom: 0; }

.lead {
  grid-column: 2 / 10;
  font-size: 21px;
  line-height: 1.62;
  color: var(--ink);
}

.note { color: var(--ink-soft); font-size: 16.5px; }

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

.hero { padding: 64px 0 var(--rhythm); }

.spine {
  grid-column: 1 / 2;
  border-left: 1px solid rgba(36, 26, 20, 0.35);
  background-image: repeating-linear-gradient(
    to bottom,
    var(--accent) 0 2px,
    transparent 2px 17px
  );
  background-size: 22px 100%;
  background-repeat: no-repeat;
  background-position: 6px 6px;
  min-height: 100%;
}

.hero-title { grid-column: 2 / 11; }

.rule-double {
  grid-column: 2 / 11;
  margin: 26px 0 24px;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid rgba(36, 26, 20, 0.45);
  height: 5px;
}

.hero-lead { grid-column: 2 / 8; font-size: 20px; }

.fig-main {
  grid-column: 7 / 13;
  margin: 46px 0 0;
}

.fig-detail { grid-column: 2 / 7; margin: 0; }
.detail-text { grid-column: 8 / 13; }

figcaption {
  font-family: var(--sans);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink-soft);
  margin-top: 10px;
  max-width: 46ch;
}

.band--dark figcaption { color: rgba(242, 235, 224, 0.72); }

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

ul.marks {
  list-style: none;
  margin: 22px 0;
  padding: 0;
}

ul.marks li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
}

ul.marks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 16px;
  height: 2px;
  background: var(--accent);
}

ol.steps {
  list-style: none;
  counter-reset: paso;
  margin: 22px 0;
  padding: 0;
}

ol.steps li {
  counter-increment: paso;
  position: relative;
  padding-left: 42px;
  margin-bottom: 14px;
}

ol.steps li::before {
  content: counter(paso, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-2);
}

.band--dark ol.steps li::before { color: #b9c2a6; }

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

.sep {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 54px 0 0;
}

.sep span {
  width: 22px;
  height: 2px;
  background: var(--accent);
}

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

.page-head { padding: 58px 0 0; }
.page-head h1 { font-size: clamp(34px, 4.6vw, 56px); }
.page-head .rule-double { margin-top: 22px; }

.dropcap::first-letter {
  float: left;
  font-family: var(--sans);
  font-weight: 800;
  font-size: 62px;
  line-height: 0.82;
  color: var(--accent);
  padding: 6px 12px 0 0;
}

.mini-sep {
  display: flex;
  gap: 9px;
  margin: 36px 0 30px;
}

.mini-sep span { width: 18px; height: 2px; background: var(--accent-2); }

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

.site-foot {
  border-top: 1px solid rgba(36, 26, 20, 0.25);
  padding: 52px 0 62px;
  text-align: center;
}

.foot-inner { grid-column: 2 / 12; }

.foot-name {
  font-family: var(--sans);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.foot-nav ul {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 4px 0;
}

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

.foot-nav li + li::before {
  content: "";
  width: 1px;
  height: 14px;
  background: rgba(110, 91, 76, 0.55);
  margin: 0 14px;
}

.foot-nav a {
  font-family: var(--sans);
  font-size: 14.5px;
  color: var(--ink);
  text-decoration: none;
}

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

.foot-mail { font-size: 17px; margin-bottom: 12px; }

.foot-note {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0 auto;
}

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

@media (max-width: 900px) {
  .wrap { width: min(100% - 40px, 760px); column-gap: 18px; }
  .lead, .hero-title, .hero-lead, .rule-double,
  .col-main, .col-wide, .col-head,
  .fig-main, .fig-detail, .detail-text, .foot-inner { grid-column: 1 / -1; }
  .spine { display: none; }
  .fig-main { margin-top: 34px; }
  .detail-text { margin-top: 28px; }
}

@media (max-width: 560px) {
  :root { --rhythm: 46px; }
  body { font-size: 17px; }
  .wrap { width: calc(100% - 32px); }
  .hero { padding: 40px 0 var(--rhythm); }
  .page-head { padding: 38px 0 0; }
  .lead, .hero-lead { font-size: 18.5px; }
  .rubric { margin-bottom: 26px; }
  .sep { margin-top: 38px; }
  .foot-nav li + li::before { margin: 0 10px; }
}