/* Celever · landing
   Reglas del manual de marca v0.1: fondo hueso, títulos Space Grotesk, texto Inter,
   menta solo como chispa (≤ 10 %), esquinas 8 px en interfaz y 12 px en tarjetas,
   sin degradados ni sombras fuertes. */

:root {
  --indigo: #1F2A6B;
  --menta: #3DDC97;
  --hueso: #F6F5F1;
  --carbon: #12141F;
  --blanco: #FFFFFF;

  --carbon-suave: #4B4E5E;            /* texto secundario sobre claro, 7,6:1 sobre hueso */
  --sobre-indigo: rgba(255, 255, 255, 0.8);
  --borde: rgba(31, 42, 107, 0.14);
  --borde-indigo: rgba(255, 255, 255, 0.18);

  --font-logo: "Sora", Arial, sans-serif;
  --font-titulo: "Space Grotesk", Arial, sans-serif;
  --font-texto: "Inter", Arial, system-ui, sans-serif;

  --radio-ui: 8px;
  --radio-card: 12px;
  --ancho: 1120px;
  --gutter: 24px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  background: var(--hueso);
  color: var(--carbon);
  font-family: var(--font-texto);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--font-titulo);
  color: var(--indigo);
  line-height: 1.15;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(40px, 5vw, 56px); font-weight: 700; }
h2 { font-size: clamp(28px, 3vw, 36px); font-weight: 700; }
h3 { font-size: 20px; font-weight: 500; }

p { margin: 0; }
a { color: inherit; }
img, svg { display: block; }

.container {
  width: 100%;
  max-width: var(--ancho);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 100;
  padding: 8px 16px; border-radius: var(--radio-ui);
  background: var(--indigo); color: var(--blanco); text-decoration: none;
}
.skip-link:focus { top: 16px; }

:focus-visible { outline: 2px solid var(--indigo); outline-offset: 3px; }
.band-indigo :focus-visible,
.site-footer :focus-visible { outline-color: var(--menta); }

/* Íconos: estilo de línea de 2 px, puntas redondeadas (familia Lucide) */
.icon {
  width: 20px; height: 20px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}
.icon-lg { width: 28px; height: 28px; color: var(--indigo); }

/* ---------- Logo ---------- */
.logo {
  position: relative;
  display: inline-block;
  font-family: var(--font-logo);
  font-weight: 600;
  font-size: 30px;
  line-height: 1;
  letter-spacing: -0.045em;
  color: var(--indigo);
  text-decoration: none;
}
.logo-e { position: relative; }
/* La chispa: círculo menta de 0,17 em sobre la primera «e» */
.logo-e::before {
  content: "";
  position: absolute;
  left: 0.12em;
  top: 0.04em;
  width: 0.17em;
  height: 0.17em;
  border-radius: 50%;
  background: var(--menta);
}
.logo-negative { color: var(--hueso); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border: 2px solid transparent;
  border-radius: var(--radio-ui);
  font: 600 16px/1 var(--font-texto);
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
/* Un solo botón primario por pantalla: menta con texto carbón */
.btn-primary { background: var(--menta); color: var(--carbon); }
.btn-primary:hover { background: #33C987; }
.btn-indigo { background: var(--indigo); color: var(--blanco); }
.btn-indigo:hover { background: #2A3785; }
.btn-outline { border-color: var(--indigo); color: var(--indigo); background: transparent; }
.btn-outline:hover { background: var(--indigo); color: var(--blanco); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--hueso);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--borde); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 76px;
}
.site-nav { display: flex; align-items: center; gap: 32px; }
.site-nav a:not(.btn) {
  font-weight: 500; color: var(--indigo); text-decoration: none;
}
.site-nav a:not(.btn):hover { text-decoration: underline; text-underline-offset: 6px; }
.site-nav .btn { min-height: 44px; }

.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  border: 1px solid var(--borde); border-radius: var(--radio-ui);
  background: var(--blanco); color: var(--indigo); cursor: pointer;
}

/* ---------- Hero ---------- */
.hero { padding: 72px 0 96px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  margin-bottom: 20px;
  font-size: 14px; font-weight: 500;
  color: var(--indigo);
}
.hero h1 { max-width: 12ch; }
.lead {
  margin-top: 20px;
  max-width: 54ch;
  font-size: 18px;
  color: var(--carbon-suave);
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-note { margin-top: 20px; font-size: 14px; color: var(--carbon-suave); }

.hero-visual {
  position: relative;
  overflow: hidden;
  min-height: 400px;
  padding: 40px;
  display: flex; align-items: flex-end;
  border-radius: var(--radio-card);
  background: var(--indigo);
}
.hero-arc {
  position: absolute;
  width: 420px; height: 420px;
  top: 56px; right: -150px;
  border: 1.5px solid rgba(61, 220, 151, 0.45);
  border-radius: 50%;
}
.spark {
  position: absolute;
  top: 66px; right: 166px;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--menta);
}
.mock {
  position: relative;
  width: 100%;
  max-width: 380px;
  padding: 20px;
  border-radius: var(--radio-card);
  background: var(--blanco);
  font-size: 14px;
}
.mock-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  padding-bottom: 12px; margin-bottom: 4px;
  border-bottom: 1px solid var(--borde);
}
.mock-head strong { font-family: var(--font-titulo); font-weight: 500; font-size: 16px; color: var(--indigo); }
.mock-head span { font-size: 12px; color: var(--carbon-suave); }
.mock-list { list-style: none; margin: 0; padding: 0; }
.mock-list li {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px; align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--borde);
}
.mock-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.mock-amount { font-variant-numeric: tabular-nums; color: var(--carbon-suave); }
.pill {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--hueso);
  color: var(--carbon);
  font-size: 12px; font-weight: 500;
}
/* Estado de éxito: menta con texto carbón */
.pill-ok { background: var(--menta); }

/* ---------- Bandas índigo ---------- */
.band { padding: 88px 0; }
.band-indigo { background: var(--indigo); color: var(--blanco); }
.band-indigo h2 { color: var(--blanco); }
.band-indigo .lead { color: var(--sobre-indigo); }

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.pain-list { list-style: none; margin: 0; padding: 0; }
.pain-list li {
  position: relative;
  padding: 16px 0 16px 28px;
  border-bottom: 1px solid var(--borde-indigo);
  font-size: 18px;
}
.pain-list li:first-child { padding-top: 0; }
.pain-list li::before {
  content: "";
  position: absolute; left: 4px; top: 27px;
  width: 8px; height: 8px;
  border-radius: 50%;
  border: 2px solid var(--menta);
}
.pain-list li:first-child::before { top: 11px; }
.pain-close { margin-top: 24px; max-width: 48ch; color: var(--sobre-indigo); }

/* ---------- Secciones ---------- */
.section { padding: 96px 0; }
.section-white { background: var(--blanco); }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head p { margin-top: 16px; font-size: 18px; color: var(--carbon-suave); }

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.card {
  padding: 28px;
  border: 1px solid var(--borde);
  border-radius: var(--radio-card);
  background: var(--blanco);
}
.card h3 { margin-top: 20px; }
.card p { margin-top: 10px; color: var(--carbon-suave); }

.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.steps li { padding-top: 20px; border-top: 2px solid var(--indigo); }
.step-num {
  font-family: var(--font-titulo); font-weight: 700; font-size: 14px;
  color: var(--indigo);
}
.steps h3 { margin-top: 12px; }
.steps p { margin-top: 8px; color: var(--carbon-suave); }

.card-wide {
  display: flex; align-items: center; gap: 24px;
}
.card-wide > div { flex: 1; }
.card-wide h3 { margin-top: 0; }
.card-wide p { margin-top: 6px; }

/* ---------- Nosotros ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-grid > div > p { margin-top: 16px; max-width: 56ch; font-size: 18px; color: var(--carbon-suave); }
.founders {
  list-style: none; margin: 32px 0 0; padding: 0;
  display: grid; gap: 16px;
}
.founders li { display: flex; align-items: center; gap: 16px; color: var(--carbon-suave); font-size: 14px; }
.founders strong { color: var(--carbon); font-size: 16px; font-weight: 600; }
.avatar {
  display: grid; place-items: center;
  width: 52px; height: 52px; flex: none;
  border-radius: 50%;
  background: var(--indigo); color: var(--blanco);
  font-family: var(--font-titulo); font-weight: 500;
}

.values { margin: 0; display: grid; gap: 16px; }
.values > div {
  padding: 24px 28px;
  border: 1px solid var(--borde);
  border-radius: var(--radio-card);
  background: var(--hueso);
}
.values dt { font-family: var(--font-titulo); font-weight: 700; font-size: 20px; color: var(--indigo); }
.values dd { margin: 6px 0 0; color: var(--carbon-suave); }

/* ---------- Contacto ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-direct { display: flex; align-items: center; gap: 10px; margin-top: 28px; }
.contact-direct a { font-weight: 600; text-underline-offset: 4px; }

.contact-form {
  padding: 32px;
  border-radius: var(--radio-card);
  background: var(--blanco);
  color: var(--carbon);
}
.field + .field { margin-top: 18px; }
.field label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 500; }
.optional { color: var(--carbon-suave); font-weight: 400; }
.field input,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #C9CAD3;
  border-radius: var(--radio-ui);
  background: var(--blanco);
  color: var(--carbon);
  font: 16px/1.5 var(--font-texto);
}
.field textarea { resize: vertical; }
.field input:focus,
.field textarea:focus { outline: 2px solid var(--indigo); outline-offset: 0; border-color: var(--indigo); }
.field [aria-invalid="true"] { border-color: #C62828; }
.form-error {
  margin-top: 16px; padding: 10px 14px;
  border-radius: var(--radio-ui);
  background: #C62828; color: var(--blanco);
  font-size: 14px;
}
.contact-form .btn { width: 100%; margin-top: 24px; }
.form-note { margin-top: 12px; font-size: 14px; color: var(--carbon-suave); text-align: center; }

/* ---------- Footer ---------- */
.site-footer { padding: 56px 0; background: var(--carbon); color: var(--hueso); }
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px 48px;
  align-items: start;
}
.footer-tagline { margin-top: 12px; font-size: 14px; color: rgba(246, 245, 241, 0.75); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 12px 28px; }
.footer-nav a { font-size: 14px; text-decoration: none; }
.footer-nav a:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-meta {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid rgba(246, 245, 241, 0.14);
  font-size: 14px; color: rgba(246, 245, 241, 0.75);
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .menu-toggle { display: inline-flex; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    display: none;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 8px var(--gutter) 24px;
    background: var(--hueso);
    border-bottom: 1px solid var(--borde);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a:not(.btn) { padding: 14px 0; border-bottom: 1px solid var(--borde); }
  .site-nav .btn { margin-top: 16px; }

  .hero { padding: 40px 0 64px; }
  .hero-grid,
  .problem-grid,
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { min-height: 320px; padding: 24px; }
  .band, .section { padding: 64px 0; }
  .card-wide { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  :root { --gutter: 16px; }
  .cards, .steps { grid-template-columns: 1fr; }
  .actions .btn { flex: 1 1 100%; }
  .mock-head { flex-direction: column; gap: 2px; }
  .mock-list li { grid-template-columns: 1fr auto; }
  .mock-amount { grid-row: 2; font-size: 13px; }
  .contact-form { padding: 24px; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}