:root {
  --color-primario: #0f4c81;
  --color-primario-oscuro: #0a2f52;
  --color-secundario: #6c7a89;
  --color-acento: #1f8ac0;
  --color-acento-suave: #d7eef8;
  --color-fondo: #f4f7fa;
  --color-fondo-claro: #ffffff;
  --color-panel: #eaf1f7;
  --color-texto: #1f2933;
  --color-texto-suave: #5f6b7a;
  --color-borde: #d8e1e8;
  --color-exito: #1e8f62;
  --color-alerta: #d17621;
  --color-error: #b73838;
  --sombra-suave: 0 10px 25px rgba(15, 76, 129, 0.08);
  --sombra-media: 0 18px 45px rgba(10, 47, 82, 0.14);
  --radio: 16px;
  --radio-lg: 24px;
  --contenedor: 1180px;
  --transicion: 0.48s ease;
  --color-toggle-track: rgba(15, 76, 129, 0.12);
  --color-toggle-border: rgba(15, 76, 129, 0.16);
  --color-toggle-knob: linear-gradient(135deg, #ffd46b, #ffb347);
  --color-toggle-icon: #0f4c81;
  --color-toggle-glow: rgba(255, 191, 73, 0.3);
}

html[data-theme="dark"] {
  --color-primario: #73b9ea;
  --color-primario-oscuro: #d9efff;
  --color-secundario: #94a3b8;
  --color-acento: #42b7ef;
  --color-acento-suave: #123550;
  --color-fondo: #071421;
  --color-fondo-claro: #0d1d2c;
  --color-panel: #102334;
  --color-texto: #e5edf5;
  --color-texto-suave: #9ab0c3;
  --color-borde: rgba(132, 167, 198, 0.18);
  --sombra-suave: 0 14px 34px rgba(0, 0, 0, 0.24);
  --sombra-media: 0 24px 54px rgba(0, 0, 0, 0.3);
  --color-toggle-track: rgba(117, 149, 178, 0.18);
  --color-toggle-border: rgba(135, 171, 201, 0.18);
  --color-toggle-knob: linear-gradient(135deg, #d7e8ff, #9ec5ff);
  --color-toggle-icon: #0a2f52;
  --color-toggle-glow: rgba(158, 197, 255, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Barlow", sans-serif;
  color: var(--color-texto);
  background:
    radial-gradient(circle at top right, rgba(31, 138, 192, 0.12), transparent 25%),
    linear-gradient(180deg, #f7f9fc 0%, #edf3f8 100%);
  line-height: 1.6;
  transition: background var(--transicion), color var(--transicion);
}

html[data-theme="dark"] body {
  background:
    radial-gradient(circle at top right, rgba(66, 183, 239, 0.16), transparent 24%),
    linear-gradient(180deg, #07111b 0%, #0b1a29 100%);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

p,
h1,
h2,
h3,
h4 {
  margin-top: 0;
}

h1,
h2,
h3,
.brand-wordmark {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.02em;
}

section {
  padding: 5rem 0;
}

.container {
  width: min(calc(100% - 2rem), var(--contenedor));
  margin: 0 auto;
}

.section-heading {
  display: grid;
  gap: 1rem;
  max-width: 760px;
  margin-bottom: 2.5rem;
}

.section-heading.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-acento);
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  width: 2.75rem;
  height: 1px;
  background: currentColor;
}

.lead {
  font-size: 1.15rem;
  color: var(--color-texto-suave);
}

.muted {
  color: var(--color-texto-suave);
}

.accent-text {
  color: var(--color-primario);
}

.surface {
  background: var(--color-fondo-claro);
  border: 1px solid rgba(216, 225, 232, 0.75);
  border-radius: var(--radio-lg);
  box-shadow: var(--sombra-suave);
  transition: background var(--transicion), border-color var(--transicion), box-shadow var(--transicion);
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.list-checks {
  display: grid;
  gap: 0.9rem;
}

.list-checks li {
  position: relative;
  padding-left: 1.6rem;
}

.list-checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-acento), var(--color-primario));
  box-shadow: 0 0 0 6px rgba(31, 138, 192, 0.12);
  animation: list-orb-pulse 3.6s ease-in-out infinite;
  transform-origin: center;
}

.list-checks li:nth-child(2)::before {
  animation-delay: 0.35s;
}

.list-checks li:nth-child(3)::before {
  animation-delay: 0.7s;
}

.list-checks li:nth-child(4)::before {
  animation-delay: 1.05s;
}

@keyframes list-orb-pulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 6px rgba(31, 138, 192, 0.12);
    filter: brightness(1);
  }

  50% {
    transform: scale(1.18);
    box-shadow: 0 0 0 10px rgba(31, 138, 192, 0.06);
    filter: brightness(1.08);
  }
}

.page-hero-offset {
  padding-top: 3.5rem;
}

.hidden {
  display: none !important;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.95s ease, transform 0.95s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}