/* ============================================
   VARIABLES DE TEMA (modo claro por defecto)
   ============================================ */
:root {
  /* Paleta Base / Primitivas de Marca */
  --brand-plum: #221728;
  --brand-crimson: #ba124d;
  --brand-teal: #003f52;
  --brand-sage-light: #eaf0ee;
  --brand-rose-muted: #dfbdb9;

  /* Tema Claro (Por Defecto) */
  --bg-base: var(--brand-sage-light);
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f5f9f8;
  
  --text-primary: var(--brand-plum);
  --text-secondary: var(--brand-teal);
  --text-muted: rgba(34, 23, 40, 0.65);
  --text-on-accent: #ffffff;

  --btn-primary-bg: var(--brand-crimson);
  --btn-primary-hover: #9c0f40;
  --btn-secondary-bg: var(--brand-teal);
  --btn-secondary-hover: #002c3a;

  --badge-bg: var(--brand-rose-muted);
  --badge-text: var(--brand-plum);

  --border: rgba(0, 63, 82, 0.12);
  --shadow: 0 4px 20px -2px rgba(34, 23, 40, 0.08);
  --glow-animation: rgba(186, 18, 77, 0.25);

  /* Tipografía - se completará */
  --font-family-base: sans-serif;
  --font-size-base: 16px;

  /* Espaciados - se completarán */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
}

/* Modo oscuro */
[data-theme="dark"] {
  --bg-base: var(--brand-plum);
  --bg-surface: #2d2034;
  --bg-surface-elevated: #392842;

  --text-primary: var(--brand-sage-light);
  --text-secondary: var(--brand-rose-muted);
  --text-muted: rgba(234, 240, 238, 0.65);
  --text-on-accent: #ffffff;

  --btn-primary-bg: var(--brand-crimson);
  --btn-primary-hover: #d81a5c;
  --btn-secondary-bg: #0b5066;
  --btn-secondary-hover: #10637d;

  --badge-bg: rgba(223, 189, 185, 0.18);
  --badge-text: var(--brand-rose-muted);

  --border: rgba(234, 240, 238, 0.12);
  --shadow: 0 4px 24px -2px rgba(0, 0, 0, 0.45);
  --glow-animation: rgba(186, 18, 77, 0.45);
}

/* ============================================
   RESET BÁSICO
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body.menu-open {
  overflow: hidden;
  padding-right: var(--scrollbar-width, 0px);
}

main {
  flex: 1;
}

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

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

ul {
  list-style: none;
}

/* ============================================
   HEADER Y NAVEGACIÓN
   ============================================ */
.site-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: var(--spacing-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.main-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
  width: auto;
}

.logo-light {
  display: block;
}

.logo-dark {
  display: none;
}

[data-theme="dark"] .logo-light {
  display: none;
}

[data-theme="dark"] .logo-dark {
  display: block;
}

/* ============================================
   ESTILOS DE BARRA DE NAVEGACIÓN (BOTONES)
   ============================================ */

/* Contenedor general de acciones */
.nav-actions {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

/* Base común para botones (menú y tema) */
.menu-toggle,
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-size: 1rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.menu-toggle:hover,
.theme-toggle:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--text-primary);
}

/* ============================================
   SWITCH DE TEMA (ESPECÍFICO CON ANIMACIÓN)
   ============================================ */

/* Ajustes del botón contenedor para que sea relativo y un círculo */
.theme-toggle {
  padding: 0; /* Removemos el padding para controlar el centrado */
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%; /* Es más estético como un círculo */
  overflow: hidden; /* Mantiene la rotación dentro del botón */
  position: relative; /* Esencial para superponer los iconos */
}

/* Estilos base para los iconos SVG */
.theme-icon {
  width: 20px;
  height: 20px;
  display: block;
  position: absolute; /* Superponemos los iconos uno encima del otro */
  
  /* === EL EFECTO: Transiciones suaves de opacidad y rotación === */
  transition: transform 0.5s ease, opacity 0.5s ease;
}

/* --- LÓGICA DE VISIBILIDAD Y ANIMACIÓN CON DATA-THEME --- */

/* 1. MODO CLARO (POR DEFECTO) O INICIAL */

/* Sol (oculto en modo claro, rotado 180 grados y transparente) */
[data-theme="light"] .icon-sun,
:root:not([data-theme="dark"]) .icon-sun {
  opacity: 0;
  transform: rotate(180deg);
  pointer-events: none; /* No interactuable */
}

/* Luna (visible en modo claro, posición normal y opaca) */
[data-theme="light"] .icon-moon,
:root:not([data-theme="dark"]) .icon-moon {
  opacity: 1;
  transform: rotate(0deg);
  pointer-events: auto; /* Interactuable */
}


/* 2. MODO OSCURO */

/* Sol (visible en modo oscuro, posición normal y opaco) */
[data-theme="dark"] .icon-sun {
  opacity: 1;
  transform: rotate(0deg);
  pointer-events: auto; /* Interactuable */
}

/* Luna (oculta en modo oscuro, rotada negativamente y transparente) */
[data-theme="dark"] .icon-moon {
  opacity: 0;
  transform: rotate(-180deg); /* Rota en dirección opuesta al sol */
  pointer-events: none; /* No interactuable */
}

/* ============================================
   MENÚ DESPLEGABLE (desde abajo)
   ============================================ */
.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 998;
}

.menu-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.fullscreen-menu {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50vh; /* Mitad del alto en desktop */
  background-color: var(--bg-surface);
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
  overflow-y: auto;
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: 0 -4px 20px -2px rgba(0, 0, 0, 0.15);
}

.fullscreen-menu.is-open {
  transform: translateY(0);
}

.menu-close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-md);
  background: none;
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 1.5rem;
  width: 40px;
  height: 40px;
  cursor: pointer;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.menu-close:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--text-primary);
}

.menu-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
  height: 100%;
  align-content: start;
}

.menu-column h3 {
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.menu-column ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.menu-column a {
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: color 0.3s ease;
  display: block;
  padding: 0.2rem 0;
}

.menu-column a:hover {
  color: var(--btn-primary-bg);
}

/* Columna 3 - Contacto y botones */
.menu-contact-info {
  margin-bottom: var(--spacing-sm);
}

.menu-contact-info p {
  margin-bottom: 0.25rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.menu-social {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-xs);
}

.menu-social a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
}

.btn-menu {
  display: block;
  padding: 0.6rem 1.2rem;
  text-align: center;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.btn-menu-primary {
  background-color: var(--btn-primary-bg);
  color: var(--text-on-accent);
}

.btn-menu-primary:hover {
  background-color: var(--btn-primary-hover);
}

.btn-menu-secondary {
  background-color: var(--btn-secondary-bg);
  color: var(--text-on-accent);
}

.btn-menu-secondary:hover {
  background-color: var(--btn-secondary-hover);
}

/* Responsive - Mobile */
@media (max-width: 768px) {
  .fullscreen-menu {
    height: 85vh; /* En mobile ocupa más espacio */
    padding: var(--spacing-md);
  }
  
  .menu-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .menu-column h3 {
    font-size: 1.1rem;
  }
  
  .menu-column a {
    font-size: 1rem;
  }
}

/* Pantallas muy pequeñas */
@media (max-width: 480px) {
  .fullscreen-menu {
    height: 90vh;
  }
}

/* ============================================
   SECCIONES BÁSICAS
   ============================================ */
main section {
  padding: var(--spacing-md) var(--spacing-sm);
  border-bottom: 1px dashed var(--border);
}

main section h2 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--spacing-md) var(--spacing-sm);
  margin-top: auto;
  background-color: var(--bg-surface);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

.footer-col h4 {
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--spacing-sm);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}