:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --ink: #16181d;
  --muted: #5d6270;
  --line: #e7e2d9;
  --accent: #d9481c;
  --accent-ink: #ffffff;
  --accent-soft: #fbe9e1;
  --note: #fff6dc;
  --note-line: #f0d98a;
  --radius: 14px;
  --font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121317;
    --surface: #1b1d22;
    --ink: #eceae6;
    --muted: #a3a7b2;
    --line: #2c2f36;
    --accent: #ff6a3d;
    --accent-ink: #1a0b05;
    --accent-soft: #3a2018;
    --note: #2b2615;
    --note-line: #5c4f22;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 17px; line-height: 1.6; }
a { color: inherit; }
img { max-width: 100%; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 760px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.hp { position: absolute; left: -9999px; }

/* Cabecera */
.top { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 5; }
.top-in { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; font-size: 18px; }
.logo-mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--accent); color: var(--accent-ink); font-size: 16px; }
.top nav { display: flex; gap: 18px; font-size: 15px; }
.top nav a { text-decoration: none; color: var(--muted); }
.top nav a:hover { color: var(--ink); }

/* Hero */
.hero { padding: 64px 0 32px; }
.hero-sm { padding: 40px 0 16px; }
.eyebrow { color: var(--accent); font-weight: 600; font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; margin: 0 0 12px; }
.hero h1 { font-size: clamp(32px, 5.4vw, 56px); margin: 0 0 16px; max-width: 18ch; }
.hero h1 em { font-style: normal; color: var(--accent); }
.lead { font-size: 19px; color: var(--muted); max-width: 62ch; margin: 0; }
.search { margin-top: 28px; max-width: 560px; }
.search input { width: 100%; padding: 15px 18px; font: inherit; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink); }
.search input:focus, .news-form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.crumbs { font-size: 14px; color: var(--muted); margin: 0 0 12px; }
.crumbs a { color: var(--muted); }

/* Filtros */
.chips { display: flex; gap: 8px; overflow-x: auto; padding: 8px 0 16px; scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chip { flex: none; border: 1px solid var(--line); background: var(--surface); color: var(--ink); padding: 8px 14px; border-radius: 999px; font: inherit; font-size: 14px; cursor: pointer; }
.chip span { color: var(--muted); margin-left: 4px; }
.chip.is-on { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.chip.is-on span { color: inherit; opacity: 0.7; }

/* Tarjetas */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.card { display: flex; flex-direction: column; gap: 8px; padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; transition: border-color 0.15s, transform 0.15s; }
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card h3 { margin: 0; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card-sector { font-size: 13px; font-weight: 600; color: var(--accent); }
.card-meta { margin-top: auto; padding-top: 8px; font-size: 13px; color: var(--muted); }
.empty { padding: 32px 0; color: var(--muted); }

/* Patrocinio */
.sponsor { display: flex; gap: 12px; align-items: center; padding: 12px 16px; margin: 0 0 16px; border: 1px dashed var(--line); border-radius: var(--radius); font-size: 15px; }
.sponsor a { text-decoration: none; color: var(--muted); }
.sponsor a strong { color: var(--ink); }
.sponsor-tag { flex: none; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); border: 1px solid var(--line); border-radius: 6px; padding: 2px 6px; }
.caso .sponsor { margin-top: 32px; }

/* Newsletter */
.news { margin: 56px 0; padding: 0 16px; }
.news-in { max-width: 760px; margin: 0 auto; padding: 36px 32px; background: var(--accent-soft); border-radius: 20px; }
.news h2 { margin: 0 0 8px; font-size: 28px; }
.news p { margin: 0 0 16px; }
.news-form { display: flex; gap: 8px; flex-wrap: wrap; }
.news-form input[type=email] { flex: 1 1 240px; padding: 14px 16px; font: inherit; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--ink); }
.news-form button, .btn { display: inline-block; padding: 14px 22px; font: inherit; font-weight: 600; border: 0; border-radius: 10px; background: var(--accent); color: var(--accent-ink); cursor: pointer; text-decoration: none; }
.news-form button:disabled { opacity: 0.6; cursor: wait; }
.news-msg { min-height: 1.6em; margin: 8px 0 0 !important; font-weight: 600; }

/* Sectores */
.sectors { margin-bottom: 64px; }
.sector-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.sector-link { display: flex; flex-direction: column; gap: 4px; padding: 16px; border-radius: var(--radius); border: 1px solid var(--line); text-decoration: none; }
.sector-link:hover { border-color: var(--accent); }
.sector-link span { color: var(--muted); font-size: 14px; }

/* Ficha de caso */
.caso { padding-top: 32px; padding-bottom: 16px; }
.caso h1 { font-size: clamp(28px, 4.4vw, 42px); margin: 0 0 20px; }
.caso h2 { font-size: 22px; margin: 36px 0 10px; }
.facts { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.facts li { padding: 12px 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; font-weight: 600; font-size: 15px; }
.facts span { display: block; font-weight: 400; font-size: 13px; color: var(--muted); }
.tools { padding-left: 20px; }
.steps { counter-reset: paso; list-style: none; padding: 0; }
.steps li { counter-increment: paso; position: relative; padding: 0 0 16px 48px; }
.steps li::before { content: counter(paso); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--ink); color: var(--bg); display: grid; place-items: center; font-weight: 700; font-size: 15px; }
.prompt { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.prompt pre { margin: 0; padding: 20px; padding-right: 96px; white-space: pre-wrap; word-wrap: break-word; font-family: var(--mono); font-size: 14.5px; line-height: 1.55; }
.copy { position: absolute; top: 12px; right: 12px; padding: 6px 12px; font: inherit; font-size: 13px; font-weight: 600; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); cursor: pointer; }
.note { margin-top: 28px; padding: 14px 16px; background: var(--note); border: 1px solid var(--note-line); border-radius: 10px; font-size: 15px; }
.steps-plain { padding-left: 20px; }
.related { margin-bottom: 64px; }

/* Pie */
.foot { border-top: 1px solid var(--line); padding: 32px 0; font-size: 14px; }
.foot p { margin: 0 0 6px; }

@media (max-width: 600px) {
  body { font-size: 16px; }
  .top nav { gap: 12px; font-size: 14px; }
  .top nav a:first-child { display: none; }
  .hero { padding: 40px 0 20px; }
  .news-in { padding: 28px 20px; }
  .grid { grid-template-columns: 1fr; }
  .facts { gap: 6px; }
  .facts li { padding: 10px; font-size: 14px; }
  .facts span { font-size: 12px; }
}