/* Estilo Kanagawa: Wave (oscuro) y Lotus (claro) según el sistema; data-theme="light"
   o "dark" lo fuerza. Paleta de rebelot/kanagawa.nvim (MIT). Títulos en P052 (clon libre
   de Palatino, AGPL con excepción de fuentes), texto en Source Sans 3 (OFL). Las fuentes
   viven en fonts/ con su licencia. */
@font-face {
  font-family: "P052";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/p052/P052-Roman.woff2") format("woff2");
}

@font-face {
  font-family: "P052";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/p052/P052-Italic.woff2") format("woff2");
}

@font-face {
  font-family: "P052";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("fonts/p052/P052-Bold.woff2") format("woff2");
}

@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/source-sans-3/source-sans-3-400-700.woff2") format("woff2");
}

:root {
  color-scheme: dark light;
  --bg: #1f1f28;
  --card: #2a2a37;
  --ink: #dcd7ba;
  --muted: #a6a69c;
  --line: #363646;
  --brand: #7e9cd8;
  --brand-ink: #a3b8e8;
  --on-brand: #1f1f28;
  --tint: #252535;
  --accent: #e6c384;
  --crit: #f08a94;
  --crit-bg: #43242b;
  --high: #ff9e3b;
  --high-bg: #49443c;
  --med: #98bb6c;
  --med-bg: #2b3328;
  --serif: "P052", Palatino, "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --sans: "Source Sans 3", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #f2ecbc;
    --card: #f9f5d7;
    --ink: #545464;
    --muted: #5a5a68;
    --line: #c9c18e;
    --brand: #486496;
    --brand-ink: #2f4a7a;
    --on-brand: #f9f5d7;
    --tint: #e5ddb0;
    --accent: #9a5000;
    --crit: #b4232f;
    --crit-bg: #f4d6cf;
    --high: #8a4a00;
    --high-bg: #f3dfae;
    --med: #4f6a3a;
    --med-bg: #dfe5b8;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f2ecbc;
  --card: #f9f5d7;
  --ink: #545464;
  --muted: #5a5a68;
  --line: #c9c18e;
  --brand: #486496;
  --brand-ink: #2f4a7a;
  --on-brand: #f9f5d7;
  --tint: #e5ddb0;
  --accent: #9a5000;
  --crit: #b4232f;
  --crit-bg: #f4d6cf;
  --high: #8a4a00;
  --high-bg: #f3dfae;
  --med: #4f6a3a;
  --med-bg: #dfe5b8;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}

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

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

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--brand);
  color: var(--on-brand);
  padding: 8px 14px;
  border-radius: 2px;
  z-index: 10;
}
.skip:focus { left: 8px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 32px; }

header.top {
  display: flex;
  align-items: center;
  gap: 6px 14px;
  padding: 18px 0;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 700 22px var(--serif);
  letter-spacing: 0;
  color: var(--ink);
  text-decoration: none;
}
.logo svg { flex: none; }

nav { margin-left: auto; display: flex; gap: 6px 20px; flex-wrap: wrap; font-weight: 600; font-size: 15px; align-items: center; }
nav a { text-decoration: none; padding: 8px 0; color: var(--ink); }
nav a[aria-current="page"] { box-shadow: inset 0 -3px 0 var(--brand); }
nav a:hover { color: var(--accent); }

main { display: flex; flex-direction: column; gap: 28px; padding: 40px 0 48px; }

section { display: flex; flex-direction: column; gap: 20px; padding: 20px 0 28px; }

.eyebrow {
  display: inline-block;
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 2px;
  background: var(--tint);
  color: var(--brand-ink);
}

h1, h2, h3 { font-family: var(--serif); line-height: 1.18; margin: 0; font-weight: 400; }
h1 { font-size: clamp(34px, 5.6vw, 54px); letter-spacing: -.01em; }
h1 em { font-style: normal; color: var(--brand); }
h2 { font-size: clamp(25px, 3.6vw, 32px); }
h3 { font-size: 21px; font-weight: 700; }

.lead { font-size: 20px; color: var(--muted); max-width: 700px; margin: 0; }
.note { font-size: 14px; color: var(--muted); margin: 0; }
.src { font: 13px var(--sans); color: var(--muted); overflow-wrap: anywhere; }

.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

.btn {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 2px;
  background: var(--brand);
  color: var(--on-brand);
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
}
.btn:hover { color: var(--on-brand); filter: brightness(1.1); }
.btn.alt { background: var(--card); color: var(--ink); border-color: var(--line); font-weight: 600; }
.btn.alt:hover { color: var(--ink); border-color: var(--brand); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .k { font: 700 12px var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--brand-ink); }

code { font-family: var(--mono); font-size: .9em; overflow-wrap: anywhere; }

pre {
  margin: 0;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow-x: auto;
  font: 14px/1.5 var(--mono);
}

.status-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--card);
  font-size: 14px;
  color: var(--muted);
}
.status-strip strong { color: var(--ink); }
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}

.tag {
  display: inline-block;
  font: 700 11px var(--sans);
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
  border: 1px solid var(--line);
  color: var(--muted);
}
.tag.crit { color: var(--crit); background: var(--crit-bg); border-color: transparent; }
.tag.high { color: var(--high); background: var(--high-bg); border-color: transparent; }
.tag.med { color: var(--med); background: var(--med-bg); border-color: transparent; }

footer {
  border-top: 1px solid var(--line);
  padding: 24px 0 44px;
  display: flex;
  gap: 10px 24px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
  align-items: center;
}
footer a { color: var(--muted); }
footer a:hover { color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* Selector de idioma y bloques Concepto / Analogía / Mecánica */
.lang { display: flex; gap: 4px; margin-left: 8px; padding-left: 14px; border-left: 1px solid var(--line); }
nav .lang a { padding: 8px 6px; font-size: 13px; letter-spacing: .08em; color: var(--muted); }
nav .lang a[aria-current="true"] { color: var(--ink); box-shadow: inset 0 -3px 0 var(--accent); }

.concept { display: grid; gap: 16px; }
.concept .block { background: var(--card); border: 1px solid var(--line); border-radius: 2px; padding: 20px; }
.concept .block h3 { margin: 0 0 8px; font: 700 12px var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--brand-ink); }
.concept .block h3 code { text-transform: none; letter-spacing: 0; font-size: 13px; }
.concept .block p { margin: 0; }
.concept .block p + p { margin-top: 8px; }
.concept ul { margin: 0; padding-left: 20px; display: grid; gap: 8px; }
.concept li strong { color: var(--ink); }

/* Móvil: márgenes cortos, cabecera en dos filas y controles a todo el ancho. */
@media (max-width: 640px) {
  .wrap { padding: 0 18px; }

  header.top { padding: 14px 0; gap: 4px 12px; }
  .logo { font-size: 20px; }

  nav {
    margin-left: 0;
    width: 100%;
    gap: 2px 16px;
    font-size: 14px;
  }
  nav a { padding: 8px 0; }
  nav .lang {
    margin-left: auto;
    padding-left: 0;
    border-left: 0;
  }

  main { gap: 20px; padding: 26px 0 36px; }
  section { gap: 16px; padding: 16px 0 22px; }

  h1 { font-size: clamp(30px, 9vw, 40px); }
  .lead { font-size: 18px; }

  .card, .concept .block { padding: 16px; }

  .status-strip { align-items: flex-start; }
  .status-dot { margin-top: 7px; }

  .scroller {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
  }

  footer { padding-bottom: 32px; }
}

@media (max-width: 420px) {
  .wrap { padding: 0 14px; }
  .grid { grid-template-columns: 1fr; }
  .row .btn { flex: 1 1 100%; justify-content: center; }
}