:root {
  --primary: #1f5fa8;
  --primary-ink: #ffffff;
  --accent: #9ec5ff;
  --bg: #fbfcff;
  --surface: #ffffff;
  --alt: #eef3fb;
  --text: #1a1c20;
  --muted: #5b6270;
  --line: #dde3ec;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(17, 40, 80, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #a7c8ff;
    --primary-ink: #003061;
    --accent: #5f8fd1;
    --bg: #111318;
    --surface: #1a1d24;
    --alt: #161a21;
    --text: #e3e5ea;
    --muted: #a6adba;
    --line: #2b313b;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

a { color: var(--primary); }

code, pre { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: 0.9em; }

.wrap { width: min(1100px, 100% - 32px); margin-inline: auto; }

/* Encabezado */
.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-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.brand img { border-radius: 9px; }
nav { display: flex; gap: 20px; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
nav a:hover { color: var(--text); }
.lang { padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--text); text-decoration: none; font-size: 0.88rem; }
.lang:hover { background: var(--alt); }
.top-row nav { margin-left: auto; }

/* Portada */
.hero { padding: 64px 0 48px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.eyebrow { margin: 0 0 12px; color: var(--primary); font-weight: 600; font-size: 0.9rem; letter-spacing: 0.02em; }
h1 { margin: 0 0 16px; font-size: clamp(2rem, 4.2vw, 3.1rem); line-height: 1.15; letter-spacing: -0.02em; }
h1 em { font-style: normal; color: var(--primary); }
.lead { margin: 0 0 28px; color: var(--muted); font-size: 1.12rem; max-width: 40ch; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; gap: 6px; padding: 14px 22px; border-radius: 999px; font-weight: 600; text-decoration: none; border: 1px solid transparent; }
.button.primary { background: var(--primary); color: var(--primary-ink); box-shadow: var(--shadow); }
.button.primary:hover { filter: brightness(1.08); }
.button.primary small { font-weight: 500; opacity: 0.8; }
.button.ghost { border-color: var(--line); color: var(--text); }
.button.ghost:hover { background: var(--alt); }
.fine { color: var(--muted); font-size: 0.88rem; }

/* Teléfono ilustrado */
.phone { margin: 0; justify-self: center; }
.screen { width: min(320px, 100%); border-radius: 36px; padding: 18px 16px; background: var(--surface); border: 8px solid #1d2230; box-shadow: var(--shadow); }
.bar { display: flex; align-items: center; gap: 8px; font-weight: 700; padding: 6px 4px 12px; border-bottom: 1px solid var(--line); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--primary); }
.note { padding: 8px 4px; font-size: 0.86rem; }
.note h3 { margin: 12px 0 4px; font-size: 0.9rem; }
.note p { margin: 0; }
.note ul { margin: 0; padding-left: 18px; }
.note li { margin: 4px 0; }
.note a { color: var(--primary); font-weight: 600; text-decoration: none; }
.player { display: flex; align-items: center; gap: 10px; margin-top: 10px; padding: 10px; border-radius: 14px; background: var(--alt); }
.play { width: 0; height: 0; border-left: 12px solid var(--primary); border-top: 8px solid transparent; border-bottom: 8px solid transparent; }
.track { flex: 1; height: 4px; border-radius: 2px; background: var(--line); overflow: hidden; }
.track span { display: block; width: 58%; height: 100%; background: var(--primary); }
.time { font-size: 0.8rem; color: var(--muted); }
.phone figcaption { margin-top: 10px; text-align: center; color: var(--muted); font-size: 0.8rem; }

/* Secciones */
.section { padding: 56px 0; }
.section.alt { background: var(--alt); }
h2 { margin: 0 0 24px; font-size: 1.9rem; letter-spacing: -0.01em; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { position: relative; padding: 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.card h3 { margin: 6px 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.badge { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--primary); color: var(--primary-ink); font-weight: 700; font-size: 0.85rem; }

.steps { margin: 0; padding-left: 0; list-style: none; counter-reset: step; display: grid; gap: 22px; }
.steps > li { counter-increment: step; position: relative; padding: 22px 22px 22px 70px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.steps > li::before { content: counter(step); position: absolute; left: 22px; top: 22px; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--primary); color: var(--primary-ink); font-weight: 700; }
.steps h3 { margin: 0 0 6px; }
.steps p { margin: 6px 0; }

table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 0.93rem; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
td a { overflow-wrap: anywhere; }

.checks { margin: 0 0 16px; padding: 0; list-style: none; display: grid; gap: 12px; }
.checks li { padding-left: 30px; position: relative; }
.checks li::before { content: "✓"; position: absolute; left: 4px; color: var(--primary); font-weight: 700; }

.privacy p { max-width: 70ch; }

.verify pre { overflow-x: auto; padding: 14px 16px; border-radius: 12px; background: var(--alt); border: 1px solid var(--line); }

.foot { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 28px 0 40px; color: var(--muted); font-size: 0.9rem; border-top: 1px solid var(--line); }
.foot img { border-radius: 6px; }
.foot a { margin-left: auto; }

/* Teléfonos */
@media (max-width: 860px) {
  .hero { padding-top: 36px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .cards { grid-template-columns: 1fr; }
  nav { display: none; }
  .steps > li { padding: 64px 16px 18px; }
  .steps > li::before { left: 16px; top: 18px; }
  table { font-size: 0.84rem; }
  th, td { padding: 8px 4px; }
  th:nth-child(3), td:nth-child(3) { white-space: nowrap; }
}