/* LandoStack — landing v1
   Paleta ESTRICTA (regla del cliente): verde menta #5FD9B9 + blanco + negro-tinta
   para texto. Se permiten tintes/transparencias del propio menta (--mint-soft,
   --line) y del negro (--ink-soft); NINGÚN otro color.
   El menta NUNCA se usa como tinta sobre blanco (contraste 1.7:1, falla WCAG):
   cuando una palabra o número debe ir en menta, el menta va de RELLENO
   con texto en tinta encima — igual que botones y chips. */

:root {
  --mint: #5FD9B9;
  --mint-soft: #EAFBF5;
  --white: #FFFFFF;
  --ink: #0F1B17;
  --ink-soft: #45564F;
  --line: #DCEFE8;
  --radius: 14px;
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; letter-spacing: -0.02em; }
h1, h2 { text-wrap: balance; }

::selection { background: var(--mint); color: var(--ink); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 14px;
}
.eyebrow::before { content: "/"; color: var(--mint); font-weight: 700; margin-right: 1px; }

/* Accesibilidad: foco visible y skip-link */
a:focus-visible, .btn:focus-visible, button:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 3px;
}
.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--white);
  padding: 10px 18px; z-index: 100;
  font-family: var(--font-mono); font-size: 0.85rem;
  text-decoration: none;
}
.skip:focus { left: 0; }

/* ---------- Header ---------- */
header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; max-width: 1080px; margin: 0 auto;
}
.nav .logo img { height: 22px; width: auto; display: block; }
.nav-right { display: flex; align-items: center; gap: 20px; }
.lang { font-family: var(--font-mono); font-size: 0.8rem; }
.lang a { color: var(--ink-soft); text-decoration: none; }
.lang a:hover { color: var(--ink); }
.lang .active { color: var(--ink); font-weight: 700; }

/* ---------- Botones ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
  background: var(--mint);
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(95, 217, 185, 0.35); }
.btn-small { padding: 9px 18px; font-size: 0.88rem; }
.btn-note {
  display: block; margin-top: 12px;
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--ink-soft);
}

/* ---------- Hero ---------- */
.hero { padding: 96px 0 88px; position: relative; overflow: hidden; }
.hero h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); max-width: 17ch; }
/* Palabra-héroe: menta de marca como relleno (marcador), tinta encima — 4.5:1 */
.hero h1 .accent {
  background: var(--mint);
  color: var(--ink);
  padding: 0 0.18em;
  border-radius: 0.14em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
.hero p {
  margin: 26px 0 36px;
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 58ch;
}
/* El slash de marca como marca de agua del hero: presente, no protagonista */
.hero-slash {
  position: absolute;
  right: 2%;
  top: 50%;
  transform: translateY(-52%) rotate(8deg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(300px, 34vw, 480px);
  line-height: 1;
  color: var(--mint);
  opacity: 0.16;
  user-select: none;
  pointer-events: none;
}

/* ---------- Secciones ---------- */
section { padding: 76px 0; }
section.alt { background: var(--mint-soft); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-bottom: 18px; max-width: 24ch; }
.lead { color: var(--ink-soft); max-width: 62ch; }

/* Dos frentes */
.fronts { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 44px; }
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.card:hover {
  border-color: var(--mint);
  box-shadow: 0 6px 20px rgba(95, 217, 185, 0.18);
}
.card h3 { font-size: 1.25rem; margin-bottom: 12px; }
.card p { color: var(--ink-soft); font-size: 0.98rem; }
.card .tag {
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--ink); background: var(--mint);
  border-radius: 6px; padding: 3px 9px;
  display: inline-block; margin-bottom: 16px;
}

/* Método */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 44px; }
.step { position: relative; padding-top: 14px; border-top: 2px solid var(--mint); }
.step::before {
  counter-increment: step;
  content: "/0" counter(step);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink);
  background: var(--mint);
  font-weight: 700;
  display: inline-block;
  padding: 1px 7px;
  border-radius: 6px;
  margin-bottom: 8px;
}
.step h3 { font-size: 1rem; margin-bottom: 6px; }
.step p { font-size: 0.86rem; color: var(--ink-soft); line-height: 1.5; }

/* Stack */
.stack-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 44px; }
.tool {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.tool:hover {
  border-color: var(--mint);
  box-shadow: 0 6px 20px rgba(95, 217, 185, 0.18);
}
.tool h3 { font-family: var(--font-mono); font-size: 0.95rem; letter-spacing: 0; margin-bottom: 8px; }
.tool h3::before { content: "/"; color: var(--mint); font-weight: 700; }
.tool p { font-size: 0.88rem; color: var(--ink-soft); line-height: 1.5; }

/* Caso */
.stats { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 36px; }
.stat {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--mint);
  border-radius: var(--radius);
  padding: 20px 26px;
  min-width: 150px;
}
.stat b { font-family: var(--font-display); font-size: 1.9rem; display: block; color: var(--ink); }
.stat span { font-size: 0.85rem; color: var(--ink-soft); }

/* Fundador */
.founder { display: grid; grid-template-columns: 2fr 1fr; gap: 48px; align-items: center; }
.founder .mono-note { font-family: var(--font-mono); font-size: 0.85rem; color: var(--ink-soft); margin-top: 18px; }
.founder .mono-note b { color: var(--ink); }
.founder-mark {
  width: 100%;
  max-width: 220px;
  height: auto;
  background: var(--mint);
  border-radius: 24px;
  padding: 28px;
}

/* CTA final */
.cta-final { background: var(--ink); color: var(--white); text-align: center; padding: 96px 0; }
.cta-mark { width: 190px; height: auto; margin-bottom: 40px; }
.cta-final h2 { color: var(--white); margin: 0 auto 16px; }
.cta-final p { color: rgba(255, 255, 255, 0.75); max-width: 54ch; margin: 0 auto 36px; }
.cta-final .eyebrow { color: rgba(255, 255, 255, 0.6); }
.cta-final .eyebrow::before { color: var(--mint); }
.cta-final .btn-note { color: rgba(255, 255, 255, 0.55); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); padding: 36px 0; }
.foot {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
  max-width: 1080px; margin: 0 auto; padding: 0 24px;
}
.foot img { height: 18px; width: auto; display: block; }
.foot nav { display: flex; gap: 22px; }
.foot a { color: var(--ink-soft); text-decoration: none; font-size: 0.88rem; }
.foot a:hover { color: var(--ink); }
.foot .copy { font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-soft); }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .hero { padding: 64px 0 56px; }
  .hero-slash { display: none; }
  section { padding: 56px 0; }
  .fronts { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .stack-grid { grid-template-columns: 1fr 1fr; }
  .founder { grid-template-columns: 1fr; }
  .nav-right .btn-small { display: none; }
}
@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .card { transition: none; }
}