/* Kontelmo — hoja de estilo común */

:root {
  --bg: #f3ebe2;
  --bg-alt: #e7d9cb;
  --bg-dark: #1f4b4e;
  --ink: #2b201a;
  --ink-soft: #7b6b5d;
  --ink-inv: #f3ebe2;
  --acc: #b05a30;
  --acc2: #2f7275;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --gap: 28px;
  --step: 80px;
}

* { 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: 1.72;
  overflow-x: hidden;
}

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

a {
  color: var(--acc);
  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(--acc);
  outline-offset: 3px;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: normal;
  text-transform: none;
  color: inherit;
  margin: 0;
}

h1 { font-size: clamp(2rem, 4.4vw, 3.15rem); line-height: 1.14; letter-spacing: -0.005em; }
h2 { font-size: clamp(1.5rem, 2.5vw, 2rem); line-height: 1.24; }
h3 { font-size: 1.22rem; font-style: italic; line-height: 1.35; }

p { margin: 0 0 1.1em; max-width: 68ch; }

/* ---------- utilidades de costura ---------- */

.wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.g12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--gap);
}

.stitch { position: relative; }

.stitch::before {
  content: "";
  position: absolute;
  inset: var(--inset, 24px);
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, var(--sc, var(--acc)) 0 13px, transparent 13px 24px) left top / 100% 2px repeat-x,
    repeating-linear-gradient(90deg, var(--sc, var(--acc)) 0 13px, transparent 13px 24px) left bottom / 100% 2px repeat-x,
    repeating-linear-gradient(180deg, var(--sc, var(--acc)) 0 13px, transparent 13px 24px) left top / 2px 100% repeat-y,
    repeating-linear-gradient(180deg, var(--sc, var(--acc)) 0 13px, transparent 13px 24px) right top / 2px 100% repeat-y;
}

.stitch-l, .stitch-r { position: relative; }

.stitch-l::before, .stitch-r::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: repeating-linear-gradient(180deg, var(--acc) 0 13px, transparent 13px 24px);
}

.stitch-l::before { left: calc(var(--gap) / -2); }
.stitch-r::before { right: calc(var(--gap) / -2); }

.seam {
  height: 2px;
  border: 0;
  margin: 0;
  background: repeating-linear-gradient(90deg, var(--acc2) 0 11px, transparent 11px 21px);
}

.seam-double {
  height: 8px;
  border: 0;
  margin: 0;
  background:
    linear-gradient(var(--acc2), var(--acc2)) left top / 100% 1px no-repeat,
    repeating-linear-gradient(90deg, var(--acc) 0 11px, transparent 11px 21px) left 6px / 100% 2px repeat-x;
}

.label {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  line-height: 1.6;
  color: var(--acc2);
  margin: 0 0 10px;
}

.num {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--acc2);
  display: block;
  margin-bottom: 8px;
}

.caption {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 12px 0 0;
  max-width: 46ch;
}

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

.topbar { background: var(--bg-alt); }

.topbar-in {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 32px;
  padding-top: 20px;
  padding-bottom: 20px;
}

.brand {
  font-family: var(--serif);
  font-size: 1.45rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.brand:hover { text-decoration: underline; text-underline-offset: 5px; }

.brand span {
  display: block;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
}

.nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 26px;
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  padding-bottom: 3px;
  background: repeating-linear-gradient(90deg, var(--acc) 0 7px, transparent 7px 13px) left bottom / 100% 2px repeat-x;
}

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

.nav a[aria-current="page"] {
  color: var(--acc);
  background: linear-gradient(var(--acc), var(--acc)) left bottom / 100% 2px no-repeat;
}

/* ---------- hero ---------- */

.hero { padding: 44px 0 0; }

.hero-box {
  --inset: 24px;
  padding: 62px 52px 56px;
}

.hero-head { grid-column: 1 / 9; }

.hero-head h1 { max-width: 17ch; }

.hero-lead {
  grid-column: 9 / 13;
  padding-left: calc(var(--gap) / 2);
}

.hero-lead p { font-size: 15.5px; color: var(--ink-soft); max-width: 34ch; }

.hero-lead p:last-child { margin-bottom: 0; }

.hero-fig {
  grid-column: 7 / 13;
  margin: 52px 0 0;
  justify-self: end;
}

.framed { position: relative; --inset: -12px; }

.hero-fig img { width: 100%; }

/* ---------- secciones ---------- */

.band { padding: var(--step) 0; }

.band-alt { background: var(--bg-alt); }

.band-dark {
  background: var(--bg-dark);
  color: var(--ink-inv);
}

.band-dark .label,
.band-dark .num,
.band-dark .caption { color: #a9c8c6; }

.band-dark h2, .band-dark h3 { color: var(--ink-inv); }

.band-dark a { color: #e9b394; }

.band-dark .stitch::before { --sc: #5d8b8c; }

.block-wide { grid-column: 1 / 8; }
.block-narrow { grid-column: 8 / 13; }
.block-right { grid-column: 6 / 13; }
.block-left-5 { grid-column: 1 / 6; }
.block-8 { grid-column: 1 / 9; }
.block-7r { grid-column: 6 / 13; }

.block + .block { margin-top: 56px; }

.pad-l { padding-left: 26px; }
.pad-r { padding-right: 26px; }

.sec-head { margin-bottom: 26px; }

.intro-note {
  font-size: 15.5px;
  color: var(--ink-soft);
}

/* listas */

ul.check, ol.steps {
  margin: 22px 0 0;
  padding: 0;
  max-width: 62ch;
}

ul.check { list-style: none; }

ul.check li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
}

ul.check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 13px;
  height: 2px;
  background: var(--acc);
}

ol.steps { padding-left: 22px; }
ol.steps li { margin-bottom: 10px; padding-left: 6px; }
ol.steps li::marker { color: var(--acc2); font-size: 14px; }

dl.gloss { margin: 22px 0 0; max-width: 62ch; }
dl.gloss dt { font-family: var(--serif); font-style: italic; font-size: 1.06rem; margin-top: 16px; }
dl.gloss dd { margin: 4px 0 0; color: var(--ink); }

/* sección oscura con imagen de detalle */

.dark-fig {
  grid-column: 2 / 6;
  --inset: -10px;
}

.dark-text {
  grid-column: 7 / 13;
  align-self: center;
}

/* ---------- páginas de texto ---------- */

.page-head { padding: 56px 0 0; }

.page-head h1 { max-width: 20ch; grid-column: 1 / 9; }

.page-head .intro-note { grid-column: 9 / 13; margin-top: 12px; }

.doc { padding: 40px 0 var(--step); }

.doc-body { grid-column: 1 / 9; }

.doc-side { grid-column: 9 / 13; }

.doc h2 { margin-top: 46px; }

.doc h3 { margin-top: 28px; }

.doc h2 + p, .doc h3 + p { margin-top: 12px; }

.side-card {
  --inset: 0px;
  padding: 26px 24px;
  font-size: 15px;
  color: var(--ink-soft);
  position: sticky;
  top: 28px;
}

.side-card p { max-width: none; }
.side-card p:last-child { margin-bottom: 0; }
.side-card strong { color: var(--ink); font-weight: 600; }

/* about: tres bloques de anchura desigual */

.about-b1 { grid-column: 1 / 9; }
.about-b2 { grid-column: 7 / 13; text-align: left; }
.about-b3 { grid-column: 1 / 8; }

.about-b1, .about-b3 { padding-right: 30px; }
.about-b2 { padding-left: 30px; }

.about-block + .about-block { margin-top: 64px; }

.about-block p:last-child { margin-bottom: 0; }

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

.footer {
  background: var(--bg-alt);
  padding: 54px 0 60px;
}

.footer-in {
  --inset: 16px;
  padding: 40px 34px 36px;
}

.footer-cols {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 30px 40px;
}

.footer-name {
  font-family: var(--serif);
  font-size: 1.3rem;
  margin: 0 0 8px;
}

.footer p { font-size: 15px; color: var(--ink-soft); max-width: 44ch; margin-bottom: 0.8em; }

.footer-nav ul {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
}

.footer-nav a { color: var(--ink); text-decoration: none; font-size: 15px; }
.footer-nav a:hover { color: var(--acc); text-decoration: underline; text-underline-offset: 3px; }

.footer-mail { font-size: 15px; }

.footer-bottom {
  margin-top: 26px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* ---------- responsive ---------- */

@media (max-width: 1000px) {
  :root { --step: 60px; --gap: 22px; }
  .hero-box { padding: 46px 34px 44px; }
  .hero-head, .hero-lead, .hero-fig { grid-column: 1 / 13; }
  .hero-lead { padding-left: 0; margin-top: 24px; }
  .hero-lead p { max-width: 60ch; }
  .stitch-l::before, .stitch-r::before { display: none; }
  .hero-fig { justify-self: stretch; margin-top: 40px; }
  .block-wide, .block-narrow, .block-right, .block-left-5,
  .block-8, .block-7r, .dark-fig, .dark-text,
  .doc-body, .doc-side, .page-head h1, .page-head .intro-note,
  .about-b1, .about-b2, .about-b3 { grid-column: 1 / 13; }
  .pad-l, .pad-r, .about-b1, .about-b2, .about-b3 { padding-left: 0; padding-right: 0; }
  .doc-side { margin-top: 40px; }
  .side-card { position: static; }
  .dark-fig { max-width: 380px; margin-bottom: 34px; }
  .about-block + .about-block { margin-top: 44px; }
}

@media (max-width: 640px) {
  :root { --step: 48px; }
  body { font-size: 16.5px; }
  .hero { padding-top: 26px; }
  .hero-box { --inset: 12px; padding: 34px 22px 32px; }
  .footer-in { --inset: 10px; padding: 28px 20px; }
  .footer-cols { grid-template-columns: 1fr; }
  .block + .block { margin-top: 40px; }
  .topbar-in { padding-top: 16px; padding-bottom: 16px; }
  .nav ul { gap: 4px 18px; }
}