/* Zukiso — hoja de estilo común */

:root {
  --bg: #f7f2e2;
  --bg-alt: #ede5cd;
  --bg-dark: #17191a;
  --ink: #1b1a16;
  --ink-soft: #756f5c;
  --ink-inv: #f7f2e2;
  --accent: #1f7d78;
  --accent-2: #a8721c;
  --mono: ui-monospace, Consolas, 'Liberation Mono', 'Courier New', monospace;
  --sans: system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --gap: 28px;
  --pad: 40px;
}

* { 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;
}

/* ---------- rejilla ---------- */

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--pad);
}

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

/* anchos de columna usados en el documento */
.c1-8  { grid-column: 1 / 9; }
.c1-7  { grid-column: 1 / 8; }
.c1-6  { grid-column: 1 / 7; }
.c2-9  { grid-column: 2 / 10; }
.c2-8  { grid-column: 2 / 9; }
.c2-7  { grid-column: 2 / 8; }
.c3-9  { grid-column: 3 / 10; }
.c4-11 { grid-column: 4 / 12; }
.c5-12 { grid-column: 5 / 13; }
.c6-12 { grid-column: 6 / 13; }
.c7-12 { grid-column: 7 / 13; }

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

h1, h2, h3, .kicker, .brand, .nav a, .meta {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-weight: 600;
}

h1 {
  font-size: clamp(1.75rem, 4.1vw, 2.85rem);
  line-height: 1.2;
  letter-spacing: 0.02em;
  margin: 0;
}

h2 {
  font-size: clamp(1.02rem, 1.7vw, 1.22rem);
  line-height: 1.45;
  letter-spacing: 0.1em;
  margin: 0 0 18px;
}

h3 {
  font-size: 0.92rem;
  line-height: 1.5;
  letter-spacing: 0.11em;
  color: var(--accent);
  margin: 34px 0 10px;
}

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

.lead {
  font-size: 1.1rem;
  line-height: 1.7;
}

.kicker {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  color: var(--accent-2);
  margin: 0 0 14px;
}

.meta {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
  font-weight: 500;
}

.soft { color: var(--ink-soft); }

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;
}

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

.site-header {
  padding: 26px 0 0;
}

.site-header .grid { row-gap: 18px; align-items: baseline; }

.brand {
  grid-column: 1 / 5;
  font-size: 0.95rem;
  letter-spacing: 0.28em;
  color: var(--ink);
  text-decoration: none;
}
.brand:hover { color: var(--accent); }

.nav {
  grid-column: 5 / 13;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  justify-content: flex-end;
  padding: 0;
  margin: 0;
  list-style: none;
}

.nav a {
  font-size: 0.71rem;
  letter-spacing: 0.18em;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--accent); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent-2); }

.header-rule {
  grid-column: 1 / 6;
  height: 3px;
  background: var(--accent);
  margin-top: 22px;
}

/* ---------- portada: hero ---------- */

.hero { padding-top: 72px; }
.hero .grid { row-gap: 0; }

.hero h1 { grid-column: 1 / 8; }

.hero-mark {
  grid-column: 10 / 11;
  width: 14px;
  height: 2.4em;
  background: var(--accent-2);
  align-self: start;
  margin-top: 6px;
}

.hero-intro {
  grid-column: 1 / 6;
  margin-top: 34px;
}

.hero-note {
  grid-column: 7 / 12;
  margin-top: 34px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* ---------- ritmo de secciones ---------- */

.block { margin-top: 64px; }
.block-wide { margin-top: 112px; }

.rule {
  height: 3px;
  background: var(--accent);
  margin-bottom: 26px;
}
.rule--alt { background: var(--accent-2); }

.band {
  background: var(--bg-alt);
  padding: 72px 0;
  margin-top: 112px;
}

.dark {
  background: var(--bg-dark);
  color: var(--ink-inv);
  padding: 96px 0;
  margin-top: 112px;
}
.dark h2, .dark h3 { color: var(--ink-inv); }
.dark h3 { color: #79c9c3; }
.dark .kicker { color: var(--accent-2); }
.dark .meta { color: #9a927c; }
.dark a { color: #79c9c3; }

/* ---------- imágenes ---------- */

figure { margin: 0; }

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

.fig-main { grid-column: 1 / 9; }

.fig-main figcaption {
  margin-top: 14px;
  text-align: right;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

.fig-detail { grid-column: 8 / 13; }

.fig-detail figcaption {
  margin-top: 12px;
  font-size: 0.74rem;
  line-height: 1.6;
  color: #9a927c;
}

.detail-text { grid-column: 1 / 7; }

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

ul.marked, ol.marked {
  margin: 0 0 20px;
  padding: 0 0 0 24px;
}

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

ul.marked li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 12px;
}

ul.marked li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 12px;
  height: 3px;
  background: var(--accent);
}

.dark ul.marked li::before { background: var(--accent-2); }

ol.marked { list-style: none; counter-reset: paso; padding-left: 0; }

ol.marked li {
  position: relative;
  padding-left: 44px;
  margin-bottom: 14px;
  counter-increment: paso;
}

ol.marked li::before {
  content: counter(paso, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.1em;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--accent-2);
}

dl.terms { margin: 0; }
dl.terms dt {
  font-family: var(--mono);
  text-transform: uppercase;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-top: 22px;
}
dl.terms dd { margin: 6px 0 0; }

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

.page-head { padding-top: 68px; }
.page-head h1 { grid-column: 1 / 9; }
.page-head .page-intro { grid-column: 1 / 7; margin-top: 26px; }

.prose { grid-column: 2 / 9; }
.prose-right { grid-column: 5 / 13; }

/* about: columna de 6 desplazada, plaquitas en el margen izquierdo */

.about-row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--gap);
  margin-top: 56px;
}

.about-row .tab {
  grid-column: 1 / 2;
  height: 3px;
  background: var(--accent);
  margin-top: 14px;
}
.about-row:nth-of-type(2) .tab { background: var(--accent-2); }
.about-row:nth-of-type(3) .tab { background: var(--accent); }

.about-row .col { grid-column: 3 / 9; }

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

.site-footer {
  background: var(--bg-alt);
  margin-top: 112px;
  padding: 56px 0 48px;
}

.footer-rule {
  grid-column: 1 / 5;
  height: 6px;
  background: var(--accent);
  margin-bottom: 34px;
}

.footer-brand {
  grid-column: 1 / 8;
  font-family: var(--mono);
  text-transform: uppercase;
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  letter-spacing: 0.22em;
  margin: 0;
}

.footer-mail {
  grid-column: 9 / 13;
  align-self: end;
  text-align: right;
  font-size: 0.9rem;
}

.footer-nav {
  grid-column: 1 / 9;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.footer-nav a {
  font-family: var(--mono);
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.17em;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}
.footer-nav a:hover { color: var(--ink); border-bottom-color: var(--accent); }

.footer-note {
  grid-column: 1 / 9;
  margin-top: 30px;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

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

@media (max-width: 900px) {
  :root { --gap: 20px; --pad: 28px; }

  .hero h1 { grid-column: 1 / 12; }
  .hero-mark { grid-column: 12 / 13; }
  .hero-intro, .hero-note { grid-column: 1 / 11; }
  .hero-note { margin-top: 24px; }

  .c1-8, .c1-7, .c1-6, .c2-9, .c2-8, .c2-7, .c3-9,
  .c4-11, .c5-12, .c6-12, .c7-12,
  .prose, .prose-right,
  .page-head h1, .page-head .page-intro { grid-column: 1 / 12; }

  .fig-main { grid-column: 1 / 12; }
  .fig-detail { grid-column: 3 / 13; }
  .detail-text { grid-column: 1 / 12; }

  .about-row .col { grid-column: 2 / 13; }
  .about-row .tab { grid-column: 1 / 2; }

  .footer-brand, .footer-nav, .footer-note { grid-column: 1 / 13; }
  .footer-mail { grid-column: 1 / 13; text-align: left; margin-top: 12px; }
  .footer-rule { grid-column: 1 / 6; }
}

@media (max-width: 620px) {
  :root { --pad: 20px; }

  body { font-size: 16px; }

  .site-header .grid { row-gap: 12px; }
  .brand { grid-column: 1 / 13; }
  .nav { grid-column: 1 / 13; justify-content: flex-start; gap: 8px 18px; }
  .header-rule { grid-column: 1 / 9; margin-top: 18px; }

  .hero { padding-top: 44px; }
  .hero h1 { grid-column: 1 / 13; }
  .hero-mark { display: none; }
  .hero-intro, .hero-note { grid-column: 1 / 13; }

  .block { margin-top: 40px; }
  .block-wide { margin-top: 64px; }
  .band { margin-top: 64px; padding: 48px 0; }
  .dark { margin-top: 64px; padding: 56px 0; }
  .site-footer { margin-top: 64px; padding: 40px 0 36px; }

  .c1-8, .c1-7, .c1-6, .c2-9, .c2-8, .c2-7, .c3-9,
  .c4-11, .c5-12, .c6-12, .c7-12,
  .prose, .prose-right, .fig-main, .fig-detail, .detail-text,
  .page-head h1, .page-head .page-intro { grid-column: 1 / 13; }

  .about-row { margin-top: 36px; }
  .about-row .tab { grid-column: 1 / 4; margin-bottom: 14px; }
  .about-row .col { grid-column: 1 / 13; }

  .fig-main figcaption { text-align: left; }
}