/* Zematra — hoja de estilo común
   Paleta: arena/gris claro, tinta y rojo */

:root {
  --bg: #f2f0ea;
  --bg-alt: #e5e2d9;
  --ink: #1a1c22;
  --muted: #6e6b64;
  --accent: #a82c26;
  --accent2: #2a4a6b;
  --line: #c9c4b6;
  --mono: ui-monospace, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --gap: 26px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  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; }
a:focus-visible,
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- Hoja (podložka) ---------- */

.sheet {
  max-width: 1180px;
  margin: 40px auto;
  border: 1px solid var(--accent);
  background: var(--bg);
  padding: 0 clamp(18px, 4vw, 54px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--gap);
  row-gap: 30px;
  align-items: start;
}

.c3 { grid-column: span 3; }
.c4 { grid-column: span 4; }
.right4 { grid-column: 9 / span 4; }
.right6 { grid-column: 7 / span 6; }
.left5 { grid-column: 1 / span 5; }
.c5 { grid-column: span 5; }
.c6 { grid-column: span 6; }
.c7 { grid-column: span 7; }
.c8 { grid-column: span 8; }
.c12 { grid-column: 1 / -1; }

/* ---------- Cabecera y navegación ---------- */

.masthead {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  align-items: baseline;
  justify-content: space-between;
  padding: 22px 0 18px;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .22em;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.wordmark span {
  display: block;
  font-size: 10.5px;
  letter-spacing: .18em;
  color: var(--muted);
  font-weight: 400;
  margin-top: 4px;
}

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

.nav a {
  font-family: var(--mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--ink);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid transparent;
}

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

/* ---------- Ritmo vertical ---------- */

.block { padding: 0; }

.rhythm > * + * { margin-top: 88px; }

/* Separador con marcas verticales en los extremos */
.rule {
  position: relative;
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}
.rule::before,
.rule::after {
  content: "";
  position: absolute;
  top: -5px;
  width: 1px;
  height: 11px;
  background: var(--accent2);
}
.rule::before { left: 0; }
.rule::after { right: 0; }

.rule-note {
  display: flex;
  justify-content: flex-end;
  margin-top: 10px;
}

.rule-note p {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent2);
  border: 1px solid var(--line);
  padding: 7px 12px;
  margin: 0;
  max-width: 340px;
  line-height: 1.6;
}

/* ---------- Tipografía ---------- */

h1, h2, h3, .label {
  font-family: var(--mono);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: .07em;
}

h1 {
  font-size: clamp(26px, 4.1vw, 44px);
  line-height: 1.22;
  letter-spacing: .03em;
  margin: 0;
}

h2 {
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.4;
  letter-spacing: .1em;
  margin: 0 0 16px;
}

h3 {
  font-size: 14px;
  letter-spacing: .13em;
  margin: 30px 0 10px;
  color: var(--ink);
}

.num {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--accent2);
  margin-bottom: 10px;
}

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

.lead { font-size: 19px; }

.label {
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
  display: block;
  margin-bottom: 9px;
}

strong { font-weight: 700; }

/* ---------- Fichas laterales ---------- */

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

.ficha + .ficha { margin-top: 20px; }

.ficha h3 {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--accent2);
}

.ficha dl {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}

.ficha dt {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 12px;
}
.ficha dt:first-child { margin-top: 0; }

.ficha dd { margin: 2px 0 0; }

.ficha p { font-size: 14px; line-height: 1.65; }

.ficha ul {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
}

/* ---------- Hero ---------- */

.hero { padding: 54px 0 46px; }

.hero .kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent2);
  margin: 0 0 18px;
}

.hero-intro { margin-top: 26px; }

.hero-figure { margin: 0; }

.hero-figure img { border: 1px solid var(--line); width: 100%; }

.sidecap {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .05em;
  color: var(--muted);
  margin: 0;
}

figcaption {
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: .07em;
  color: var(--muted);
  margin-top: 12px;
}

/* ---------- Listas ---------- */

ul.plain, ol.plain { padding-left: 20px; margin: 0 0 18px; }
ul.plain li, ol.plain li { margin-bottom: 9px; }
ul.plain li::marker { color: var(--accent); }
ol.plain li::marker { color: var(--accent); font-family: var(--mono); font-size: 14px; }

.check { list-style: none; padding: 0; margin: 0; }
.check li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 11px;
}
.check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 13px;
  height: 1px;
  background: var(--accent);
}

/* ---------- Bandas alternas ---------- */

.band-alt {
  background: var(--bg-alt);
  margin: 0 calc(-1 * clamp(18px, 4vw, 54px));
  padding: 54px clamp(18px, 4vw, 54px);
}

.band-dark {
  background: var(--ink);
  color: var(--bg);
  margin: 0 calc(-1 * clamp(18px, 4vw, 54px));
  padding: 64px clamp(18px, 4vw, 54px);
}

.band-dark h2, .band-dark h3 { color: var(--bg); }
.band-dark .num { color: #9db4cc; }
.band-dark .label { color: #a9a49a; }
.band-dark .sidecap {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .05em;
  color: var(--muted);
  margin: 0;
}

figcaption { color: #a9a49a; }
.band-dark a { color: #e8b3ae; }
.band-dark .ficha { border-color: #3a3d46; }
.band-dark .ficha h3 { color: #9db4cc; }
.band-dark .ficha dt { color: #a9a49a; }
.band-dark .check li::before { background: #e8b3ae; }
.band-dark img { border: 1px solid #3a3d46; }

.detail-figure { margin: 0; }

/* ---------- Contacto ---------- */

.contact-box {
  border: 1px solid var(--accent);
  padding: 22px 24px;
}

.contact-box p { font-size: 15px; }

.mail {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: .04em;
  word-break: break-word;
}

/* ---------- Pie ---------- */

.site-footer {
  max-width: 1180px;
  margin: 0 auto 48px;
  padding: 0 clamp(18px, 4vw, 54px);
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 16px;
}

.footer-top .wordmark { font-size: 14px; }

.footer-line { height: 1px; background: var(--line); }

.footer-bottom {
  display: grid;
  grid-template-columns: 1fr minmax(0, 380px);
  gap: 20px 40px;
  padding-top: 18px;
}

.footer-bottom p {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin: 0 0 12px;
  padding: 0;
}

.footer-nav a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

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

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  body { font-size: 16.5px; }
  .sheet { margin: 18px auto; }
  .c3, .c4, .c5, .c6, .c7, .c8,
  .right4, .right6, .left5 { grid-column: 1 / -1; }
  .rhythm > * + * { margin-top: 52px; }
  .hero { padding: 34px 0 30px; }
  .band-alt, .band-dark { padding-top: 40px; padding-bottom: 40px; }
  .footer-bottom { grid-template-columns: 1fr; }
  .rule-note { justify-content: flex-start; }
  .rule-note p { max-width: none; }
}

@media (max-width: 560px) {
  .masthead { padding: 18px 0 14px; }
  .nav ul { gap: 6px 16px; }
  .hero-figure { margin-top: 6px; }
}