/* Estilos del sitio de presentación. Mismos colores que la app (src/styles.css). */
:root {
  --bg: #f6f6f4; --surface: #fcfcfb; --border: #e3e2dc; --text: #0b0b0b; --text-2: #52514e;
  --accent: #1f5fae; --accent-ink: #ffffff; --positive: #006300;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111110; --surface: #1a1a19; --border: #2e2e2c; --text: #ffffff; --text-2: #c3c2b7;
    --accent: #3987e5; --accent-ink: #ffffff; --positive: #4cc94c;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 system-ui, -apple-system, 'Segoe UI', sans-serif; }
a { color: var(--accent); }
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 20px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); text-decoration: none; }
.brand img { width: 32px; height: 32px; }
h1 { font-size: clamp(1.9rem, 6vw, 2.8rem); line-height: 1.15; margin: 48px 0 16px; letter-spacing: -0.01em; }
h2 { font-size: 1.25rem; margin: 40px 0 12px; }
h3 { font-size: 1.05rem; margin: 0 0 4px; }
.lead { font-size: 1.15rem; color: var(--text-2); margin: 0 0 24px; max-width: 36em; }
.muted { color: var(--text-2); }
.small { font-size: 0.9rem; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 12px; font-weight: 600; text-decoration: none;
  background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); }
.btn.ghost { background: transparent; color: var(--accent); }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 8px 0; padding: 0; list-style: none; }
.features li, section.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 16px; }
.features p { margin: 0; color: var(--text-2); font-size: 0.95rem; }
section.card { margin-top: 16px; }
.checks { padding-left: 0; list-style: none; }
.checks li { padding-left: 1.6em; position: relative; margin: 6px 0; }
.checks li::before { content: '✓'; position: absolute; left: 0; color: var(--positive); font-weight: 700; }
footer { margin-top: 56px; padding-top: 16px; padding-bottom: 32px; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 0.9rem; color: var(--text-2); }
.doc h1 { font-size: 1.7rem; margin-top: 32px; }
.doc h2 { font-size: 1.1rem; margin-top: 28px; }