/* Krilmandoga — hoja de estilos única para todo el sitio */

:root {
  --bg: #f4f0e8;
  --bg-alt: #e7e1d5;
  --bg-dark: #20242a;
  --ink: #22201b;
  --ink-soft: #776f62;
  --ink-inv: #f4f0e8;
  --accent: #2c4668;
  --accent-2: #a06a2c;
  --mono: ui-monospace, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --gap: 24px;
  --pad: 32px;
  --rhythm: 96px;
}

* { 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;
  text-decoration-thickness: 1px;
}

a:hover { text-decoration-thickness: 2px; }

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

.dark a:focus-visible { outline-color: var(--accent-2); }

/* ---------- retícula base de 12 columnas ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--gap);
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--pad);
}

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

.site-header {
  border-bottom: 1px solid rgba(44, 70, 104, 0.45);
  padding: 22px 0 18px;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 28px;
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--pad);
}

.brand {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover { color: var(--accent); }

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-family: var(--mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  text-decoration: none;
  color: var(--ink-soft);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

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

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

.hero { padding: 72px 0 var(--rhythm); }

.hero h1 {
  grid-column: 1 / 9;
  grid-row: 2;
  margin: 0;
  font-family: var(--mono);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.005em;
  line-height: 1.04;
  font-size: clamp(1.7rem, 7.2vw, 4.05rem);
  overflow-wrap: break-word;
}

.hero-kicker {
  grid-column: 1 / 9;
  grid-row: 1;
  align-self: start;
  margin: 0 0 20px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent-2);
}

.hero-lede {
  grid-column: 1 / 5;
  grid-row: 3;
  margin: 40px 0 0;
  color: var(--ink);
}

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

.hero-fig {
  grid-column: 9 / 13;
  grid-row: 3;
  margin: -4.6rem 0 0;
  max-width: 480px;
  justify-self: end;
}

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

figcaption {
  font-style: italic;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-top: 12px;
}

/* ---------- secciones de contenido ---------- */

.band { padding: var(--rhythm) 0; }
.band--alt { background: var(--bg-alt); }
.band--line { border-top: 1px solid rgba(44, 70, 104, 0.45); }

.sec-num {
  grid-column: 1 / 3;
  grid-row: 1;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--accent-2);
  padding-top: 8px;
}

.col-narrow { grid-column: 3 / 9; grid-row: 1; }
.col-wide { grid-column: 3 / 11; grid-row: 1; }
.col-full { grid-column: 1 / 13; grid-row: 1; }

h2 {
  margin: 0 0 22px;
  font-family: var(--mono);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.22;
  font-size: clamp(1.15rem, 2.5vw, 1.6rem);
  overflow-wrap: break-word;
}

h3 {
  margin: 34px 0 12px;
  font-family: var(--mono);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.85rem;
  color: var(--accent);
}

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

.lead-note {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* listas prácticas en dos columnas */

.checklist {
  grid-column: 2 / 12;
  grid-row: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 44px;
  list-style: none;
  margin: 40px 0 0;
  padding: 28px 0 0;
  border-top: 1px solid rgba(44, 70, 104, 0.45);
  counter-reset: chk;
}

.checklist li {
  position: relative;
  padding: 0 0 0 30px;
  margin: 0 0 14px;
  font-size: 0.97rem;
  line-height: 1.7;
  break-inside: avoid;
}

.checklist li::before {
  counter-increment: chk;
  content: counter(chk, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

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

.plain-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 12px;
}

.plain-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ---------- sección contrastada ---------- */

.dark {
  background: var(--bg-dark);
  color: var(--ink-inv);
  padding: var(--rhythm) 0;
}

.dark h2 { color: var(--ink-inv); }
.dark h3 { color: var(--accent-2); }
.dark .sec-num { color: var(--accent-2); grid-column: 1 / 2; }
.dark a { color: #cddaee; }

.dark-fig {
  grid-column: 2 / 6;
  grid-row: 1;
  margin: 0;
  align-self: start;
}

.dark-fig figcaption { color: #a9a294; }

.dark-text {
  grid-column: 7 / 13;
  grid-row: 1;
}

.dark .plain-list li::before { color: var(--accent-2); }

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

.page-head { padding: 64px 0 0; }

.page-head h1 {
  grid-column: 1 / 10;
  margin: 0;
  font-family: var(--mono);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.1;
  font-size: clamp(1.5rem, 5vw, 2.9rem);
  overflow-wrap: break-word;
}

.page-head .hero-kicker {
  grid-column: 1 / 10;
  grid-row: auto;
  align-self: auto;
}

/* composición de "Sobre el proyecto": columna de texto a la derecha */

.about-marks {
  grid-column: 1 / 5;
  grid-row: 1;
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  border-top: 1px solid rgba(44, 70, 104, 0.45);
}

.about-marks li {
  border-bottom: 1px solid rgba(44, 70, 104, 0.45);
  padding: 14px 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.about-body {
  grid-column: 6 / 13;
  grid-row: 1;
}

.doc-body {
  grid-column: 3 / 11;
  grid-row: 1;
}

.doc-body h2 { margin-top: 48px; }
.doc-body h2:first-child { margin-top: 0; }

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

.site-footer {
  background: var(--bg-dark);
  color: var(--ink-inv);
  padding: 64px 0 52px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 4fr 3fr 3fr;
  column-gap: 44px;
  row-gap: 32px;
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--pad);
}

.footer-brand {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: clamp(1.3rem, 3.4vw, 2rem);
  line-height: 1.15;
  margin: 0 0 14px;
  overflow-wrap: break-word;
}

.footer-note {
  color: #a9a294;
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
  max-width: 34ch;
}

.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav li { margin-bottom: 10px; }

.footer-nav a,
.footer-contact a {
  color: var(--ink-inv);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid rgba(160, 106, 44, 0.85);
  padding-bottom: 2px;
}

.footer-nav a:hover,
.footer-contact a:hover { border-bottom-color: var(--ink-inv); }

.footer-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin: 0 0 14px;
}

.footer-contact p { margin: 0 0 10px; }

.footer-bottom {
  width: 100%;
  max-width: 1180px;
  margin: 46px auto 0;
  padding: 22px var(--pad) 0;
  border-top: 1px solid rgba(160, 106, 44, 0.5);
  font-size: 0.82rem;
  color: #a9a294;
}

/* ---------- tablet ---------- */

@media (max-width: 900px) {
  :root { --rhythm: 68px; --pad: 26px; }

  .hero-lede { grid-column: 1 / 7; }
  .hero-fig { grid-column: 8 / 13; margin-top: -2.4rem; }
  .col-narrow { grid-column: 3 / 13; }
  .col-wide { grid-column: 3 / 13; }
  .checklist { grid-column: 1 / 13; column-gap: 32px; }
  .dark .sec-num { grid-column: 1 / 13; grid-row: 1; padding: 0 0 16px; }
  .dark-fig { grid-column: 1 / 6; grid-row: 2; }
  .dark-text { grid-column: 6 / 13; grid-row: 2; }
  .about-marks { grid-column: 1 / 4; }
  .about-body { grid-column: 5 / 13; }
  .doc-body { grid-column: 2 / 13; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- móvil ---------- */

@media (max-width: 640px) {
  :root { --rhythm: 56px; --pad: 20px; --gap: 16px; }

  body { font-size: 16.5px; }

  .header-inner { flex-direction: column; align-items: flex-start; }
  .site-nav ul { gap: 8px 18px; }

  .hero { padding: 44px 0 var(--rhythm); }
  .hero h1,
  .hero-kicker,
  .hero-lede,
  .hero-fig,
  .sec-num,
  .col-narrow,
  .col-wide,
  .col-full,
  .checklist,
  .dark-fig,
  .dark-text,
  .about-marks,
  .about-body,
  .doc-body,
  .page-head h1,
  .page-head .hero-kicker {
    grid-column: 1 / 13;
    grid-row: auto;
  }

  .hero h1 { margin-top: 0; }
  .hero-lede { margin-top: 28px; }

  .hero-fig {
    margin: 32px 0 0;
    max-width: 320px;
    justify-self: start;
  }

  .sec-num { padding: 0 0 10px; }

  .checklist {
    grid-template-columns: 1fr;
    margin-top: 28px;
  }

  .dark-fig { margin-bottom: 32px; max-width: 320px; }

  .about-marks { margin-bottom: 34px; }

  .footer-grid { grid-template-columns: 1fr; row-gap: 30px; }
}