:root {
  /* Color Palette */
  --bg-main: #f8fafc;
  --text-main: #334155;
  --text-heading: #0f172a;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;

  /* Accents & Highlights */
  --accent-color: #2563eb;
  --accent-light: #eff6ff;
  --accent-text: #1d4ed8;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
  font-family:
    'Inter',
    system-ui,
    -apple-system,
    sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography elements */
h1,
h2,
h3 {
  color: var(--text-heading);
  line-height: 1.3;
}

ul {
  margin: 10px;
}

/* Layout container */
.container {
  max-width: 850px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

/* Header styling */
header {
  text-align: center;
  margin-bottom: 4rem;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
}

.subtitle {
  font-size: 1.125rem;
  color: #475569;
  max-width: 650px;
  margin: 0 auto;
}

/* Main Sections (Steps) */
.step-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 3rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 3rem;
  border: 1px solid var(--border-color);
  transition: box-shadow 0.3s ease;
}

.step-card:hover {
  box-shadow: var(--shadow-md);
}

.step-card h2 {
  font-size: 1.5rem;
  font-weight: 600;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--border-color);
}

.step-card p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

/* Highlighted Box styling */
.important-note {
  background-color: var(--accent-light);
  border-left: 4px solid var(--accent-color);
  border-radius: 0 8px 8px 0;
  padding: 1.5rem;
  margin: 2rem 0;
  color: var(--accent-text);
  font-size: 1rem;
  line-height: 1.6;
}

.important-note strong {
  color: var(--accent-color);
  font-weight: 600;
  display: inline-block;
  margin-bottom: 0.25rem;
}

/* Images inside steps */
.step-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  margin-bottom: 2.5rem;
}

/* Footer styling */
footer {
  text-align: center;
  margin-top: 5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: #94a3b8;
  font-size: 0.875rem;
}

/* Responsive adjustements */
@media screen and (max-width: 768px) {
  .container {
    padding: 2.5rem 1rem;
  }

  header h1 {
    font-size: 2rem;
  }

  .step-card {
    padding: 1.5rem;
  }
}

/* Print/PDF Export Styles */
@media print {
  body {
    background-color: white;
    color: black;
  }

  .container {
    max-width: 100%;
    padding: 0;
    margin: 0;
  }

  .step-card {
    box-shadow: none;
    border: none;
    padding: 1rem 0;
    margin-bottom: 2rem;
    page-break-inside: avoid;
  }

  .step-card h2 {
    color: black;
    border-bottom-color: #ddd;
  }

  .important-note {
    border-left-color: black;
    background-color: #f9f9f9;
    color: black;
  }

  .important-note strong {
    color: black;
  }

  /* Evitar que las fotos se corten entre páginas */
  .step-image {
    page-break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
    max-height: 800px; /* Prevenir imágenes demasiado grandes */
    width: auto;
    margin: 2rem auto;
  }

  footer {
    page-break-inside: avoid;
  }

  /* Ocultar elementos innecesarios al imprimir, si los hubiera */
  @page {
    margin: 2cm;
  }
}