@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&family=Inter:wght@400;500;600&display=swap");

:root {
  /* ---- Colores: fondos oscuros ---- */
  --color-bg-dark: #0a1510; /* fondo principal oscuro (hero, footer) */
  --color-bg-dark-2: #0e1c15; /* paneles ligeramente más claros sobre el oscuro (tarjetas timeline) */
  --color-bg-dark-card: #10241a; /* fondo de íconos circulares oscuros */

  /* ---- Colores: fondos claros ---- */
  --color-bg-light: #f4f3ee; /* fondo hueso de secciones claras */
  --color-bg-card: #ffffff; /* tarjetas sobre fondo claro */

  /* ---- Verdes de marca ---- */
  --color-primary: #2f6b4f; /* verde botones sólidos */
  --color-primary-hover: #255a41;
  --color-accent: #4ade80; /* verde brillante: eyebrows, íconos, líneas */
  --color-accent-soft: #86e3a8; /* variante más suave para hover/detalles */

  /* ---- Texto ---- */
  --color-text-dark: #12190f; /* texto principal sobre fondo claro */
  --color-text-dark-muted: #4a534a;
  --color-text-light: #ffffff; /* texto principal sobre fondo oscuro */
  --color-text-light-muted: #b9c4bc;

  /* ---- Bordes ---- */
  --color-border-light: #e2e0d8;
  --color-border-dark: #22352a;

  /* ---- Tipografía ---- */
  --font-heading: "Poppins", sans-serif;
  --font-body: "Inter", sans-serif;

  /* ---- Layout ---- */
  --container-width: 1180px;
  --section-padding: 100px;
  --section-padding-mobile: 60px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;

  /* ---- Sombras ---- */
  --shadow-card: 0 4px 20px rgba(10, 21, 16, 0.06);
  --shadow-card-hover: 0 10px 30px rgba(10, 21, 16, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
}

/* ---- Layout utilities ---- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: var(--section-padding) 0;
}

.section--dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
}

.section--light {
  background-color: var(--color-bg-light);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.eyebrow-underline {
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-top: 8px;
}

/* ---- Botones ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn--solid {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.btn--solid:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
}

.btn--outline {
  background-color: transparent;
  border: 1.5px solid var(--color-accent);
  color: var(--color-text-light);
}

.btn--outline:hover {
  background-color: rgba(74, 222, 128, 0.1);
  transform: translateY(-2px);
}

.btn--outline-dark {
  background-color: transparent;
  border: 1.5px solid var(--color-primary);
  color: var(--color-text-dark);
}

.btn--outline-dark:hover {
  background-color: rgba(47, 107, 79, 0.08);
}

/* ---- Responsive ---- */
@media (max-width: 968px) {
  :root {
    --section-padding: var(--section-padding-mobile);
  }

  .container {
    padding: 0 20px;
  }
}