:root {
  --bg: #0B0F14;
  --panel: #141A22;
  --panel-2: #1B232D;
  --line: #243040;
  --text: #E9EEF3;
  --muted: #9AA6B2;
  --lime: #C6F432;
  --lime-ink: #0B0F14;
  color-scheme: dark;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

a { color: var(--lime); text-underline-offset: 3px; }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

/* Cabecera */
header.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
header.top .wrap { display: flex; align-items: center; gap: 12px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: -0.01em; }
.brand img { width: 32px; height: 32px; border-radius: 9px; }
nav.links { margin-left: auto; display: flex; gap: 4px; align-items: center; }
nav.links a { color: var(--muted); text-decoration: none; font-weight: 600; font-size: 15px; padding: 6px 10px; border-radius: 999px; }
nav.links a[aria-current="page"] { color: var(--text); background: var(--panel); }
.lang {
  display: inline-flex; background: var(--panel); border-radius: 999px; padding: 3px; margin-left: 6px;
}
.lang button {
  all: unset; cursor: pointer; font-weight: 700; font-size: 13px; color: var(--muted);
  padding: 4px 10px; border-radius: 999px;
}
.lang button[aria-pressed="true"] { background: var(--lime); color: var(--lime-ink); }
.lang button:focus-visible { outline: 2px solid var(--lime); outline-offset: 2px; }

/* Contenido */
main { padding: 36px 0 72px; }
h1 { font-size: clamp(28px, 6vw, 40px); line-height: 1.15; margin: 0 0 6px; letter-spacing: -0.02em; }
h1 .accent { color: var(--lime); }
h2 { font-size: 21px; margin: 36px 0 8px; letter-spacing: -0.01em; }
p, li { color: var(--text); }
ul { padding-left: 22px; }
li { margin: 6px 0; }
.muted { color: var(--muted); font-size: 15px; }
.card { background: var(--panel); border-radius: 22px; padding: 20px 22px; margin: 24px 0; }
.card.lime { border: 1px solid color-mix(in srgb, var(--lime) 40%, transparent); }

/* Portada */
.hero { text-align: center; padding: 40px 0 8px; }
.hero img { width: 128px; height: 128px; border-radius: 30px; box-shadow: 0 20px 60px -20px color-mix(in srgb, var(--lime) 45%, transparent); }
.hero h1 { margin-top: 22px; }
.hero p { color: var(--muted); font-size: 19px; max-width: 520px; margin: 8px auto 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin: 36px 0; }
.grid .card { margin: 0; }
.grid h3 { margin: 0 0 4px; font-size: 17px; }
.grid p { margin: 0; color: var(--muted); font-size: 15px; }
.pill {
  display: inline-block; background: var(--lime); color: var(--lime-ink); font-weight: 800;
  padding: 12px 22px; border-radius: 999px; text-decoration: none;
}
.actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }
.pill.ghost { background: var(--panel); color: var(--text); }

/* Preguntas */
details { background: var(--panel); border-radius: 18px; padding: 4px 20px; margin: 10px 0; }
details summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; color: var(--lime); font-weight: 800; }
details[open] summary::after { content: "–"; }
details p { margin: 0 0 16px; color: var(--muted); }

footer { border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); }

/* Idiomas: solo se ve el activo */
[data-lang] { display: none; }
html[lang="es"] [data-lang="es"], html[lang="en"] [data-lang="en"] { display: revert; }

@media (max-width: 520px) {
  nav.links a { padding: 6px 8px; font-size: 14px; }
  .brand span { display: none; }
}