/* ==========================================
   ANDREA INTUITIVA - DESIGN SYSTEM (MD3)
   styles.css
   ========================================== */

/* 1. Variables de Diseño (Tokens de Color y Material Design) */
:root {
  /* Paleta Holística & Cálida */
  --md-sys-color-primary: #B85B3F;         /* Terracota */
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #F9EBE6;
  --md-sys-color-on-primary-container: #3D190E;

  --md-sys-color-secondary: #6B7C5F;       /* Verde Salvia */
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #EBF0E7;
  --md-sys-color-on-secondary-container: #1D2618;

  --md-sys-color-surface: #FDFBF7;         /* Crema base */
  --md-sys-color-surface-variant: #F2ECE1; /* Crema contenedor */
  --md-sys-color-on-surface: #2A2825;       /* Texto principal */
  --md-sys-color-on-surface-variant: #59554F; /* Texto secundario */

  /* Tipografía */
  --font-family-heading: 'Lora', Georgia, serif;
  --font-family-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;

  /* Elevaciones Material Design 3 */
  --md-elevation-1: 0px 1px 3px rgba(0, 0, 0, 0.08), 0px 1px 2px rgba(0, 0, 0, 0.12);
  --md-elevation-2: 0px 3px 6px rgba(0, 0, 0, 0.10), 0px 2px 4px rgba(0, 0, 0, 0.12);

  /* Bordes Redondeados Orgánicos MD3 */
  --radius-small: 8px;
  --radius-medium: 16px;
  --radius-large: 28px;
  --radius-full: 9999px;
}

/* 2. Reset Base y Tipografía General */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-body);
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--font-family-heading);
  color: var(--md-sys-color-on-surface);
  font-weight: 500;
  line-height: 1.2;
}

/* 3. Estructura y Layout */
.site-header {
  position: sticky;
  top: 0;
  background-color: rgba(253, 251, 247, 0.9);
  backdrop-filter: blur(8px);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--md-elevation-1);
  z-index: 100;
}

.nav-menu {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--md-sys-color-primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.section-block {
  padding: 4rem 0;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Layout con imagen para secciones de contenido */
.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .content-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* 4. Tarjetas y Modulos (Material Surface Cards) */
.surface-card {
  background-color: var(--md-sys-color-surface-variant);
  border-radius: var(--radius-medium);
  padding: 2rem;
  box-shadow: var(--md-elevation-1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.surface-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--md-elevation-2);
}

/* Contenedores de imagen con estilo suave */
.section-image-wrapper {
  width: 100%;
  border-radius: var(--radius-large);
  overflow: hidden;
  box-shadow: var(--md-elevation-1);
}

.section-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* 5. Componentes de Interacción (Botones MD3) */
.btn-primary {
  display: inline-block;
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  box-shadow: var(--md-elevation-1);
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
  background-color: #A04D33;
  box-shadow: var(--md-elevation-2);
}

.btn-secondary {
  display: inline-block;
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.btn-secondary:hover {
  background-color: #DDE5D7;
}

/* 6. Footer */
.site-footer {
  background-color: var(--md-sys-color-surface-variant);
  color: var(--md-sys-color-on-surface-variant);
  padding: 3rem 1.5rem;
  text-align: center;
  margin-top: 4rem;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* Alineación del contenedor del Logo */
.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem; /* Espacio entre la imagen y el texto */
}

/* Imagen del Logo en el Header */
.site-logo {
  height: 160px;          /* Altura adecuada para el header */
  width: auto;           /* Mantiene la proporción original */
  object-fit: contain;
  border-radius: 50%;    /* Opcional: da forma circular si es un isotipo cuadrado */
}

/* Texto del Logo */
.site-title {
  font-family: var(--font-family-heading);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
}