/* David × MLVeda · estilos. Todo el diseño sale de las variables de :root; cambiar el look = cambiar tokens. */
:root {
  --bg: #f5f6f8; --surface: #ffffff; --surface-2: #eef1f5; --ink: #141a23; --soft: #3c4655; --muted: #66707f;
  --line: #d9dee6; --accent: #1f4fa3; --accent-ink: #ffffff; --accent-soft: #e2eaf7;
  --ok: #17803d; --ok-soft: #e1f3e7; --warn: #9a5b00; --warn-soft: #fbefd7;
  --f-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --f-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --radius: 12px; --col: 760px; --wide: 1080px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #0e1218; --surface: #151b24; --surface-2: #1b2330; --ink: #e7ecf3; --soft: #c3cbd7; --muted: #8f9aab;
  --line: #273140; --accent: #86aef5; --accent-ink: #0d1420; --accent-soft: #1b2944;
  --ok: #5fcb8b; --ok-soft: #13301f; --warn: #f0b552; --warn-soft: #33270f; color-scheme: dark; } }
:root[data-theme="dark"] {
  --bg: #0e1218; --surface: #151b24; --surface-2: #1b2330; --ink: #e7ecf3; --soft: #c3cbd7; --muted: #8f9aab;
  --line: #273140; --accent: #86aef5; --accent-ink: #0d1420; --accent-soft: #1b2944;
  --ok: #5fcb8b; --ok-soft: #13301f; --warn: #f0b552; --warn-soft: #33270f; color-scheme: dark; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.62 var(--f-body); }
a { color: var(--accent); text-underline-offset: 3px; }
main a { overflow-wrap: anywhere; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
img { max-width: 100%; height: auto; }

/* cabecera y navegación */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 92%, transparent);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line);
  padding-top: env(safe-area-inset-top, 0px); }
.top-in { max-width: var(--wide); margin: 0 auto; padding: 10px 16px 0; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.brand { font: 700 17px/1.2 var(--f-display); color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.brand span { color: var(--muted); font-weight: 600; }
.nav { max-width: var(--wide); margin: 0 auto; padding: 0 16px; display: flex; gap: 2px; overflow-x: auto; scrollbar-width: thin; }
.nav a { flex: none; padding: 10px 10px 9px; color: var(--soft); text-decoration: none; font: 600 14.5px var(--f-body);
  border-bottom: 3px solid transparent; white-space: nowrap; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }

/* columna */
main { max-width: var(--col); margin: 0 auto; padding: 28px 16px 120px; }
main.ancho { max-width: var(--wide); }
.eyebrow { font: 600 12.5px/1.4 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--accent); margin: 0 0 8px; }
h1, h2, h3 { font-family: var(--f-display); line-height: 1.15; letter-spacing: -.01em; text-wrap: balance; }
h1 { font-size: clamp(30px, 6vw, 44px); margin: 0 0 14px; }
h2 { font-size: clamp(22px, 3.6vw, 28px); margin: 40px 0 12px; }
h3 { font-size: 19px; margin: 28px 0 8px; }
p, li { max-width: 70ch; }
.lede { font-size: 19px; color: var(--soft); }
ul, ol { padding-left: 1.3em; }
li + li { margin-top: .3em; }
blockquote { margin: 18px 0; padding: 10px 16px; border-left: 4px solid var(--accent); background: var(--surface); border-radius: 0 var(--radius) var(--radius) 0; color: var(--soft); }
code { font: .88em var(--f-mono); background: var(--surface-2); padding: .1em .35em; border-radius: 4px; overflow-wrap: anywhere; }
pre { background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; overflow-x: auto; }
pre code { background: none; padding: 0; font-size: 13.5px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 32px 0; }
.tbl { overflow-x: auto; margin: 16px 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.tbl table { border-collapse: collapse; width: 100%; font-size: 15px; font-variant-numeric: tabular-nums; }
.tbl th, .tbl td { text-align: left; vertical-align: top; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.tbl th { font: 600 12.5px var(--f-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--muted); background: var(--surface-2); }
.tbl tr:last-child td { border-bottom: 0; }
figure { margin: 22px 0; }
figure img { display: block; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
figcaption { font-size: 14.5px; color: var(--muted); margin-top: 8px; }

/* tarjetas */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin: 20px 0; }
.card { display: grid; gap: 6px; align-content: start; padding: 18px; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); color: var(--ink); text-decoration: none; min-width: 0; }
a.card:hover { border-color: var(--accent); }
.card b { font: 700 18px/1.25 var(--f-display); }
.card span { color: var(--soft); font-size: 15px; }
.card small { color: var(--accent); font: 600 13px var(--f-mono); }
.card img { border-radius: 8px; border: 1px solid var(--line); aspect-ratio: 16 / 10; object-fit: cover; object-position: top; width: 100%; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 18px 0; }
.kpi { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; display: grid; gap: 6px; }
.kpi b { font: 700 26px/1.1 var(--f-display); color: var(--accent); font-variant-numeric: tabular-nums; }
.kpi span { font-size: 14px; color: var(--soft); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 16px; border-radius: 10px; background: var(--accent);
  color: var(--accent-ink); font: 600 15px var(--f-body); text-decoration: none; border: 0; }
.btn.sec { background: var(--surface); color: var(--ink); border: 1px solid var(--line); }
.acciones { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0; }
.draft { background: var(--warn-soft); color: var(--warn); border: 1px dashed var(--warn); border-radius: 10px; padding: 10px 14px; font-weight: 600; }
.marco { width: 100%; height: min(82vh, 980px); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.siguiente { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--line); }
.siguiente a { font-weight: 600; }
footer.pie { max-width: var(--wide); margin: 0 auto; padding: 0 16px 40px; color: var(--muted); font-size: 13.5px; }
@media (max-width: 640px) { body { font-size: 16.5px; } h2 { margin-top: 32px; } }
@media print { .top, .lector, .lector-sec { display: none !important; } main { padding-top: 0; } }