:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --surface-2: #f3f1ec;
  --ink: #1c1b18;
  --ink-2: #57544c;
  --line: #e4e0d6;
  --accent: #1f6f4a;
  --accent-ink: #ffffff;
  --accent-soft: #e3f1ea;
  --warn: #a4561a;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(28, 27, 24, .06), 0 12px 32px rgba(28, 27, 24, .08);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --display: "Fraunces", Georgia, serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151513;
    --surface: #1e1e1b;
    --surface-2: #262622;
    --ink: #efede6;
    --ink-2: #b3afa4;
    --line: #34332e;
    --accent: #5fc596;
    --accent-ink: #0f2a1d;
    --accent-soft: #1d3428;
    --warn: #e9a46a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
img { max-width: 100%; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }

/* Cabecera */
.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px; background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-size: 15px;
}
.nav { display: flex; gap: 22px; margin-left: auto; font-size: 15px; }
.nav a { color: var(--ink-2); text-decoration: none; }
.nav a:hover { color: var(--ink); }

/* Botones */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  padding: 13px 22px; border-radius: 10px; font-weight: 600; font-size: 16px;
  text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .1s, filter .15s;
}
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-sm { padding: 8px 14px; font-size: 14px; }

/* Portada */
.hero { padding: 72px 0 56px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-soft); padding: 5px 10px; border-radius: 999px;
}
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; }
h1 { font-family: var(--display); font-weight: 600; font-size: clamp(34px, 5vw, 54px); letter-spacing: -.01em; margin-top: 16px; }
h2 { font-family: var(--display); font-weight: 600; font-size: clamp(28px, 3.6vw, 38px); }
h3 { font-size: 19px; }
.lead { font-size: 19px; color: var(--ink-2); max-width: 34em; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 14px; }
.fine { font-size: 14px; color: var(--ink-2); }

/* Ventana del programa (ilustración) */
.app {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow);
  overflow: hidden; font: 13px/1.4 "Segoe UI", system-ui, sans-serif;
}
.app-bar { display: flex; align-items: center; gap: 8px; padding: 9px 12px; background: var(--surface-2); border-bottom: 1px solid var(--line); color: var(--ink-2); }
.app-bar span { margin-right: auto; }
.app-body { padding: 16px; display: grid; gap: 10px; }
.app-title { display: flex; justify-content: space-between; align-items: baseline; }
.app-title b { font-size: 17px; }
.app-title small { color: var(--accent); font-weight: 600; }
.app-field { display: grid; grid-template-columns: 110px 1fr; gap: 8px; align-items: center; }
.app-field label { color: var(--ink-2); }
.app-input { border: 1px solid var(--line); border-radius: 5px; padding: 5px 8px; background: var(--bg); }
.app-row { display: flex; gap: 8px; align-items: center; }
.app-btn { background: var(--accent); color: var(--accent-ink); border-radius: 5px; padding: 6px 12px; font-weight: 600; }
.app-progress { height: 8px; background: var(--surface-2); border-radius: 4px; overflow: hidden; }
.app-progress i { display: block; width: 72%; height: 100%; background: var(--accent); }
.app-log {
  font: 12px/1.55 Consolas, ui-monospace, monospace; background: var(--bg); border: 1px solid var(--line);
  border-radius: 6px; padding: 8px 10px; color: var(--ink-2);
}
.app-log .ok { color: var(--accent); }
.app-log .no { color: var(--warn); }

/* Secciones */
section { padding: 72px 0; }
.alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 640px; margin-bottom: 40px; }
.section-head p { color: var(--ink-2); font-size: 18px; margin: 0; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.alt .card { background: var(--bg); }
.card p { color: var(--ink-2); margin: 0; font-size: 16px; }
.icon {
  width: 40px; height: 40px; border-radius: 10px; background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center; margin-bottom: 14px;
}
.icon svg { width: 22px; height: 22px; }

.steps { counter-reset: s; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: s; position: relative; padding-top: 52px; }
.steps li::before {
  content: counter(s); position: absolute; top: 0; left: 0; width: 38px; height: 38px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 700;
}
.steps p { color: var(--ink-2); margin: 0; }

.zip {
  font: 14px/1.7 Consolas, ui-monospace, monospace; background: var(--surface-2); border-radius: var(--radius);
  padding: 20px 22px; overflow-x: auto; white-space: pre; color: var(--ink);
}

.providers { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.chip { border: 1px solid var(--line); background: var(--surface); border-radius: 999px; padding: 7px 14px; font-size: 15px; }

/* Precio */
.pricing { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 820px; }
.plan { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; }
.plan.featured { border: 2px solid var(--accent); box-shadow: var(--shadow); }
.plan h3 { margin-bottom: 4px; }
.price { font-family: var(--display); font-size: 46px; font-weight: 600; line-height: 1; margin: 14px 0 4px; }
.price small { font: 500 17px var(--font); color: var(--ink-2); }
.plan ul { list-style: none; padding: 0; margin: 18px 0 24px; display: grid; gap: 8px; }
.plan li { padding-left: 26px; position: relative; font-size: 16px; }
.plan li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.plan .btn { margin-top: auto; }

/* Preguntas */
details { border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { cursor: pointer; font-weight: 600; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
details[open] summary::after { content: "–"; }
details p, details ol { color: var(--ink-2); margin: 12px 0 0; }

/* Pie */
footer { padding: 40px 0; border-top: 1px solid var(--line); font-size: 15px; color: var(--ink-2); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center; }
footer nav { display: flex; flex-wrap: wrap; gap: 18px; margin-left: auto; }
footer a { color: var(--ink-2); }

/* Páginas legales */
.legal { padding: 56px 0 72px; }
.legal h1 { font-size: clamp(30px, 4vw, 42px); }
.legal h2 { font-family: var(--font); font-size: 21px; font-weight: 700; margin-top: 36px; }
.legal p, .legal li { color: var(--ink-2); }
.todo { background: #fff3c4; color: #5a4300; padding: 0 4px; border-radius: 3px; }
@media (prefers-color-scheme: dark) { .todo { background: #4a3d0c; color: #ffe9a6; } }

@media (max-width: 860px) {
  .hero .wrap, .grid-3, .steps, .pricing { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
  .nav { display: none; }
  .top .btn { margin-left: auto; }
  section { padding: 56px 0; }
}