/**
 * ============================================================
 * Espacio EcoNativo - Hoja de Estilos Principal
 * ============================================================
 * Estilo: Minimalista, Natural, Elegante
 * Paleta: Verde, Blanco, Transparencias, Glassmorphism
 * ============================================================
 */

/* ============================================================
 * 1. RESET Y CONFIGURACIÓN BASE
 * ============================================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* -- Colores principales -- */
  --color-verde-oscuro: #1b4332;
  --color-verde-medio: #2d6a4f;
  --color-verde-claro: #40916c;
  --color-verde-suave: #52b788;
  --color-verde-acento: #74c69d;
  --color-verde-pastel: #95d5b2;
  --color-blanco: #ffffff;
  --color-blanco-humo: #f8faf8;
  --color-negro: #111111;
  --color-gris-oscuro: #333333;
  --color-gris-medio: #666666;
  --color-gris-claro: #999999;

  /* -- Colores glassmorphism -- */
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.25);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  --glass-blur: blur(10px);
  -webkit-backdrop-filter: blur(10px);

  /* -- Tipografía -- */
  --font-family: 'Poppins', sans-serif;

  /* -- Transiciones -- */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* -- Bordes redondeados -- */
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --border-radius-xl: 50px;

  /* -- Sombras -- */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.15);

  /* -- Espaciado -- */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-blanco-humo);
  color: var(--color-gris-oscuro);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

/* ============================================================
 * 2. BANNER / HEADER
 * ============================================================ */

/* Contenedor principal del banner */
.banner {
  position: relative;
  width: 100%;
  height: 420px;
  background: url('../img/banner-principal.jpg') center / cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Overlay oscuro semitransparente sobre la imagen */
.banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.55) 0%,
    rgba(27, 67, 50, 0.60) 100%
  );
  z-index: 1;
}

/* Contenido interno del banner */
.banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--color-blanco);
  padding: var(--spacing-md);
}

/* Logo centrado en el banner */
.banner-logo {
  width: 260px;
  height: 105px;
  margin: 0 auto 12px auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.3));
}

/* Título principal */
.banner-title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 4px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

/* Subtítulo */
.banner-subtitle {
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 1px;
  opacity: 0.9;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
}

/* ---- Responsive Banner ---- */
@media (max-width: 768px) {
  .banner {
    height: 180px;
  }

  .banner-logo {
    width: 60px;
    height: 60px;
    margin-bottom: 8px;
  }

  .banner-title {
    font-size: 1.6rem;
    letter-spacing: 2px;
  }

  .banner-subtitle {
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .banner {
    height: 160px;
  }

  .banner-logo {
    width: 160px;
    height: 70px;
  }

  .banner-title {
    font-size: 1.3rem;
    letter-spacing: 1px;
  }

  .banner-subtitle {
    font-size: 0.8rem;
  }
}

/* ============================================================
 * 3. SECCIÓN DE BOTONES DE NAVEGACIÓN
 * ============================================================ */

/* Contenedor general de la sección de botones */
.nav-section {
  padding: var(--spacing-lg) var(--spacing-sm);
  background: linear-gradient(
    180deg,
    var(--color-verde-oscuro) 0%,
    var(--color-verde-medio) 100%
  );
}

/* Grid de botones - ahora en una sola columna centrada */
.nav-buttons {
  max-width: 450px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

/* Cada botón de navegación */
.nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px 30px;
  width: 100%;
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-align: center;
  border-radius: var(--border-radius-xl);
  border: 2px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: var(--color-blanco);
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--glass-shadow);
  user-select: none;
}

/* Icono dentro del botón */
.nav-btn i {
  font-size: 1.3rem;
  transition: transform var(--transition-normal);
}

/* Efecto hover: elevación y cambio de fondo */
.nav-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 6px 20px rgba(0, 0, 0, 0.15);
  color: var(--color-blanco);
}

/* Efecto hover en el icono */
.nav-btn:hover i {
  transform: scale(1.1);
}

/* Efecto al hacer click */
.nav-btn:active {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ---- Responsive botones ---- */
@media (max-width: 768px) {
  .nav-section {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .nav-buttons {
    max-width: 100%;
    padding: 0 var(--spacing-sm);
  }

  .nav-btn {
    padding: 16px 24px;
    font-size: 1rem;
  }
}

/* ============================================================
 * 4. FOOTER
 * ============================================================ */

/* Footer principal */
.footer {
  background: var(--color-verde-oscuro);
  color: var(--color-blanco);
  padding: var(--spacing-md) var(--spacing-sm);
  text-align: center;
  margin-top: auto;
}

/* Logo en el footer */
.footer-logo {
  width: 120px;
  height: 50px;
  margin: 0 auto 8px auto;
  object-fit: contain;
  filter: brightness(1.2);
}

/* Nombre en el footer */
.footer-name {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 4px;
}

/* Copyright */
.footer-copy {
  font-size: 0.65rem;
  opacity: 0.7;
  margin-bottom: 12px;
}

/* Iconos de redes sociales */
.footer-social {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 8px;
}

/* Cada enlace de red social */
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--color-blanco);
  font-size: 1.2rem;
  transition: all var(--transition-normal);
}

/* Hover en redes sociales */
.footer-social a:hover {
  background: var(--color-verde-claro);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ============================================================
 * 5. MODAL (Agenda tu Evento)
 * ============================================================ */

/* Fondo del modal con glassmorphism */
.modal-content {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(46, 106, 79, 0.2);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
}

/* Cabecera del modal */
.modal-header {
  background: linear-gradient(135deg, var(--color-verde-oscuro), var(--color-verde-medio));
  color: var(--color-blanco);
  border-bottom: none;
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
  padding: 20px 24px;
}

.modal-header .modal-title {
  font-weight: 600;
  letter-spacing: 1px;
  font-size: 1.3rem;
}

.modal-header .btn-close {
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

/* Cuerpo del modal */
.modal-body {
  padding: 24px;
}

/* Footer del modal */
.modal-footer {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  padding: 16px 24px;
}

/* Etiquetas del formulario */
.modal-body .form-label {
  font-weight: 500;
  color: var(--color-gris-oscuro);
  font-size: 0.9rem;
  margin-bottom: 4px;
}

/* Campos del formulario */
.modal-body .form-control,
.modal-body .form-select {
  border: 1px solid rgba(46, 106, 79, 0.25);
  border-radius: var(--border-radius-sm);
  padding: 10px 14px;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  background: rgba(255, 255, 255, 0.8);
}

/* Foco en campos */
.modal-body .form-control:focus,
.modal-body .form-select:focus {
  border-color: var(--color-verde-claro);
  box-shadow: 0 0 0 3px rgba(64, 145, 108, 0.15);
  background: var(--color-blanco);
  outline: none;
}

/* Botón de envío */
.btn-enviar {
  background: linear-gradient(135deg, var(--color-verde-claro), var(--color-verde-medio));
  color: var(--color-blanco);
  border: none;
  border-radius: var(--border-radius-xl);
  padding: 12px 40px;
  font-weight: 600;
  letter-spacing: 1px;
  font-size: 1rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
  width: 100%;
}

.btn-enviar:hover {
  background: linear-gradient(135deg, var(--color-verde-medio), var(--color-verde-oscuro));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-blanco);
}

.btn-enviar:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-enviar:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

/* Spinner dentro del botón */
.btn-enviar .spinner-border {
  width: 1.2rem;
  height: 1.2rem;
  margin-right: 8px;
}

/* ============================================================
 * 6. ANIMACIONES
 * ============================================================ */

/* Fade In al cargar la página */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Clase aplicada con JavaScript al cargar */
.fade-in {
  animation: fadeInUp 0.8s ease forwards;
}

/* Delays escalonados para cada botón */
.fade-in-delay-1 { animation-delay: 0.05s; }
.fade-in-delay-2 { animation-delay: 0.10s; }
.fade-in-delay-3 { animation-delay: 0.15s; }
.fade-in-delay-4 { animation-delay: 0.20s; }
.fade-in-delay-5 { animation-delay: 0.25s; }
.fade-in-delay-6 { animation-delay: 0.30s; }
.fade-in-delay-7 { animation-delay: 0.35s; }

/* Efecto hover de elevación suave (clase utilitaria) */
.hover-elevate {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-elevate:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ============================================================
 * 7. UTILIDADES
 * ============================================================ */

/* Texto centrado */
.text-center { text-align: center; }

/* Margen inferior */
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* Texto con color verde */
.text-verde { color: var(--color-verde-claro); }

/* Contenedor principal para sticky footer */
.main-content {
  flex: 1;
}