/* ==========================================================================
   Variables y Configuración Base
   ========================================================================== */
:root {
  --primary-color: #0f62fe;
  --primary-hover: #0043ce;
  --secondary-color: #e0e0e0;
  --secondary-hover: #c6c6c6;
  --danger-color: #da1e28;
  --danger-hover: #ba1b23;
  --success-color: #24a148;

  --bg-color: #f4f7fa;
  --surface-color: #ffffff;
  --text-main: #161616;
  --text-muted: #6f6f6f;
  --border-color: #e0e0e0;

  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 12px;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
}

/* ==========================================================================
   Layout y Contenedores
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ==========================================================================
   Barra de Navegación (Header)
   ========================================================================== */
.navbar {
  background-color: var(--surface-color);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 0.875rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
}

.brand-icon {
  font-size: 1.6rem;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

/* Menú de Navegación Central */
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--border-radius);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-color);
  background-color: rgba(15, 98, 254, 0.08);
}

/* Buscador General */
.search-box {
  flex: 1;
  max-width: 480px;
}

.search-box input {
  width: 100%;
  padding: 0.65rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  background-color: var(--bg-color);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.search-box input:focus {
  border-color: var(--primary-color);
  background-color: var(--surface-color);
  box-shadow: 0 0 0 3px rgba(15, 98, 254, 0.15);
}

/* Botón Carrito */
.cart-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  padding: 0.65rem 1.15rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.cart-btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

.badge {
  background-color: #fff;
  color: var(--primary-color);
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 700;
  min-width: 1.35rem;
  height: 1.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-inline: 0.25rem;
}

/* ==========================================================================
   Sección Hero (Banner Principal)
   ========================================================================== */
.hero-banner {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #ffffff;
  scroll-margin-top: 4.5rem;
}

.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 15, 30, 0.92) 0%,
    rgba(15, 25, 45, 0.78) 60%,
    rgba(10, 15, 30, 0.5) 100%
  );
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 720px;
  padding-block: 4rem;
}

.hero-tag {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.8px;
  margin-bottom: 1.25rem;
  text-wrap: balance;
}

.hero-description {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.6;
  margin-bottom: 2rem;
  max-width: 580px;
}

.btn-hero {
  background-color: var(--primary-color);
  color: #ffffff;
  text-decoration: none;
  padding: 0.85rem 1.75rem;
  border-radius: 9999px;
  font-size: 1.05rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  box-shadow: 0 4px 16px rgba(15, 98, 254, 0.4);
  transition: all var(--transition-fast);
}

.btn-hero:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(15, 98, 254, 0.55);
}

.hero-arrow {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
}

.btn-hero:hover .hero-arrow {
  transform: translateY(3px);
}

/* ==========================================================================
   Botones Generales
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), opacity var(--transition-fast);
}

.btn-primary {
  background-color: var(--primary-color);
  color: #ffffff;
}

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

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--text-main);
}

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

/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 1000;
}

.toast {
  background-color: #161616;
  color: #ffffff;
  padding: 0.85rem 1.25rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: slideInToast 0.25s ease-out forwards;
}

@keyframes slideInToast {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ==========================================================================
   Responsividad de Navegación
   ========================================================================== */
@media (max-width: 680px) {
  .nav-container {
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-block: 0.75rem;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 0.5rem;
    padding-top: 0.35rem;
    border-top: 1px solid var(--border-color);
  }

  .nav-link {
    font-size: 0.85rem;
    padding: 0.35rem 0.65rem;
  }
}