/* ===== SISTEMA DE INVENTARIO - CSS COMPLETO ===== */

/* VARIABLES CSS PRINCIPALES */
:root {
  /* Colores principales del sistema */
  --bg-color: linear-gradient(#1a1008, #000000);
  --card-bg: rgba(255, 255, 255, 0.1);
  --text-color: #ffffff;
  --heading-gradient: linear-gradient(45deg, #C4956A, #A0845C);
  --input-bg: rgba(255, 255, 255, 0.15);
  --input-border: rgba(255, 255, 255, 0.2);
  --button-gradient: linear-gradient(45deg, #C4956A, #A0845C);
  --table-header-bg: rgba(196, 149, 106, 0.2);
  --table-hover-bg: rgba(255, 255, 255, 0.1);
  --table-border: rgba(255, 255, 255, 0.1);

  /* Variables responsivas del menú */
  --mobile-menu-width: 60px;
  --tablet-menu-width: 70px;
  --desktop-menu-width: 85px;
  --mobile-expanded-width: 296px;
  --tablet-expanded-width: 326px;
  --desktop-expanded-width: 356px;

  /* Variables específicas para iPhone */
  --iphone-menu-width: 80px;
  --iphone-expanded-width: 316px;
  --iphone-menu-padding: 15px;

  /* Variables adicionales para responsividad completa */
  --menu-width: 280px;
  --menu-width-laptop: 250px;
  --card-padding: 15px;
  --card-margin: 10px;
  --border-radius: 12px;
  --text-size-small: 0.8rem;
  --text-size-medium: 1rem;
  --text-size-large: 1.2rem;

  /* Espaciado responsivo */
  --spacing-xs: 5px;
  --spacing-sm: 10px;
  --spacing-md: 15px;
  --spacing-lg: 20px;
  --spacing-xl: 30px;
}

/* RESET Y BASE */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

html::-webkit-scrollbar {
  display: none;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-color);
  min-height: 100vh;
  margin: 0;
  color: var(--text-color);
  overflow-x: hidden;
  /* Ocultar scrollbar */
  scrollbar-width: none;
  -ms-overflow-style: none;
}

body::-webkit-scrollbar {
  display: none;
}

/* ICONOS MATERIAL SYMBOLS EMBEBIDOS */
.material-symbols-outlined {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  flex-shrink: 0;
}

.material-symbols-outlined.inventory_2 {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M20 2H4c-1 0-2 .9-2 2v3.01c0 .72.43 1.34 1 1.69V20c0 1.1 1.1 2 2 2h14c.9 0 2-.9 2-2V8.7c.57-.35 1-.97 1-1.69V4c0-1.1-1-2-2-2zm-5 12H9v-2h6v2zm5-7H4V4h16v3z'/%3E%3C/svg%3E");
}

.material-symbols-outlined.assignment {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M19 3h-4.18C14.4 1.84 13.3 1 12 1c-1.3 0-2.4.84-2.82 2H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm-7 0c.55 0 1 .45 1 1s-.45 1-1 1-1-.45-1-1 .45-1 1-1zm2 14H7v-2h7v2zm3-4H7v-2h10v2zm0-4H7V7h10v2z'/%3E%3C/svg%3E");
}

.material-symbols-outlined.download {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M19 9h-4V3H9v6H5l7 7 7-7zM5 18v2h14v-2H5z'/%3E%3C/svg%3E");
}

.material-symbols-outlined.person_add {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M15 12c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm-9-2V7H4v3H1v2h3v3h2v-3h3v-2H6zm9 4c-2.67 0-8 1.34-8 4v2h16v-2c0-2.66-5.33-4-8-4z'/%3E%3C/svg%3E");
}

.material-symbols-outlined.logout {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M17 7l-1.41 1.41L18.17 11H8v2h10.17l-2.58 2.58L17 17l5-5zM4 5h8V3H4c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h8v-2H4V5z'/%3E%3C/svg%3E");
}

.material-symbols-outlined.swap_horiz {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M6.99 11L3 15l3.99 4v-3H14v-2H6.99v-3zM21 9l-3.99-4v3H10v2h7.01v3L21 9z'/%3E%3C/svg%3E");
}

.material-symbols-outlined.home {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M10 20v-6h4v6h5v-8h3L12 3 2 12h3v8z'/%3E%3C/svg%3E");
}

.material-symbols-outlined.photo_library {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M22 16V4c0-1.1-.9-2-2-2H8c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2zm-11-4l2.03 2.71L16 11l4 5H8l3-4zM2 6v14c0 1.1.9 2 2 2h14v-2H4V6H2z'/%3E%3C/svg%3E");
}

/* Fondo personalizado de empresa */
.bg-empresa {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -1;
}

.bg-empresa::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
}

/* MENÚ LATERAL */
.menu {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--desktop-menu-width);
  height: 100%;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  background: var(--card-bg);
  backdrop-filter: blur(15px);
  box-shadow: 8px 0px 25px rgba(0, 0, 0, 0.3);
  z-index: 1000;
  padding: var(--spacing-md) 0;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.menu.iphone-device {
  width: var(--iphone-menu-width);
  padding: var(--iphone-menu-padding) 0;
}

.menu.iphone-device:hover {
  width: var(--iphone-expanded-width);
}

.menu:hover {
  width: var(--desktop-expanded-width);
}

.menu:hover .menu-text {
  opacity: 1;
  transform: translateX(0);
  visibility: visible;
}

/* LISTA DEL MENÚ */
.menu-content {
  padding: 0;
  margin: 0;
  list-style: none;
  height: 100%;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.menu-content::-webkit-scrollbar {
  display: none;
}

/* CATEGORÍAS DEL MENÚ */
.menu-category {
  margin: var(--spacing-lg) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: var(--spacing-sm);
}

.menu-category:last-child {
  border-bottom: none;
}

.category-title {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0 var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.menu:hover .category-title {
  opacity: 1;
}

/* ELEMENTOS DEL MENÚ */
.menu-content li {
  border-radius: 0 25px 25px 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin: var(--spacing-xs) 0 var(--spacing-xs) 0;
  margin-right: var(--spacing-md);
  overflow: hidden;
  position: relative;
}

.menu-content li:hover {
  background: linear-gradient(90deg, transparent, rgba(196, 149, 106, 0.15));
  transform: translateX(5px);
  box-shadow: 0 4px 20px rgba(196, 149, 106, 0.2);
}

.menu-content li:hover::before {
  width: 4px;
}

.menu-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0;
  background: linear-gradient(45deg, #C4956A, #A0845C);
  transition: width 0.3s ease;
  border-radius: 0 2px 2px 0;
}

/* ENLACES DEL MENÚ */
.menu-content li a {
  text-decoration: none;
  color: var(--text-color);
  display: flex;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: 'Poppins', sans-serif;
  min-height: 56px;
  position: relative;
  transition: all 0.3s ease;
}

/* ICONOS DEL MENÚ */
.menu-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: var(--spacing-md);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(76, 175, 80, 0.4), rgba(56, 142, 60, 0.25));
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(76, 175, 80, 0.2);
}

.menu.iphone-device .menu-icon {
  width: 36px;
  height: 36px;
  margin-right: var(--spacing-lg);
}

.menu-icon .material-symbols-outlined {
  width: 20px;
  height: 20px;
}

.menu.iphone-device .menu-icon .material-symbols-outlined {
  width: 22px;
  height: 22px;
}

.menu-content li:hover .menu-icon {
  transform: scale(1.1) rotate(5deg);
  background: linear-gradient(135deg, rgba(76, 175, 80, 0.5), rgba(56, 142, 60, 0.35));
  box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

/* TEXTO DEL MENÚ */
.menu-text {
  opacity: 0;
  transform: translateX(-20px);
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  font-weight: 500;
  font-size: 0.9rem;
}

/* ESTADO ACTIVO */

.menu-content li.active::before {
  width: 0;
}

.menu-content li.active .menu-icon {
  background: linear-gradient(135deg, rgba(76, 175, 80, 0.4), rgba(56, 142, 60, 0.25));
  box-shadow: 0 4px 15px rgba(76, 175, 80, 0.2);
}

/* CONTENIDO PRINCIPAL */
.main-content {
  margin-left: calc(var(--desktop-menu-width) + 20px);
  padding: var(--spacing-xl);
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 80px;
  transition: margin-left 0.3s ease;
}

.main-content.iphone-content {
  margin-left: calc(var(--iphone-menu-width) + 25px);
  padding: var(--spacing-lg);
  padding-top: 60px;
}

/* TARJETAS */
.welcome-card,
.auth-card {
  background: var(--card-bg);
  backdrop-filter: blur(15px);
  border-radius: 20px;
  padding: var(--spacing-xl) var(--spacing-lg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  max-width: 600px;
  width: 100%;
}

.auth-card {
  max-width: 450px;
}

.welcome-card h1,
.auth-card h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--spacing-lg);
  background: var(--heading-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 600;
  line-height: 1.2;
}

.auth-card h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
}

.welcome-card p,
.auth-card p {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

/* FORMULARIOS */
.form-group {
  margin-bottom: var(--spacing-lg);
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  font-size: 0.9rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: var(--spacing-md);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--border-radius);
  color: var(--text-color);
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: #C4956A;
  box-shadow: 0 0 15px rgba(196, 149, 106, 0.3);
}

.form-group input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.form-group select option {
  background: #1a1a2e;
  color: var(--text-color);
}

/* BOTONES */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--button-gradient);
  color: var(--text-color);
  border: none;
  border-radius: 25px;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  width: 100%;
  text-align: center;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(196, 149, 106, 0.4);
}

.btn:active {
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.3);
  margin-top: var(--spacing-md);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #C4956A;
}

/* ENLACES */
.auth-link {
  margin-top: var(--spacing-lg);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.auth-link a {
  color: #C4956A;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.auth-link a:hover {
  color: #D4A574;
  text-decoration: underline;
}

/* MENSAJES DE ERROR/ÉXITO */
.message {
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-lg);
  font-size: 0.9rem;
}

.message.error {
  background: rgba(244, 67, 54, 0.2);
  border: 1px solid rgba(244, 67, 54, 0.5);
  color: #ff6b6b;
}

.message.success {
  background: rgba(196, 149, 106, 0.2);
  border: 1px solid rgba(196, 149, 106, 0.5);
  color: #D4A574;
}

/* INFO DE USUARIO */
.user-info {
  background: rgba(255, 255, 255, 0.05);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-lg);
}

.user-info p {
  margin: var(--spacing-xs) 0;
  font-size: 0.95rem;
}

.user-info strong {
  color: #C4956A;
}

/* ========== RESPONSIVE DESIGN ========== */

/* iPhone específico */
@supports (-webkit-touch-callout: none) {
  .menu {
    width: var(--iphone-menu-width) !important;
    padding: var(--iphone-menu-padding) 0 !important;
  }

  .menu:hover {
    width: var(--iphone-expanded-width) !important;
  }

  .main-content {
    margin-left: calc(var(--iphone-menu-width) + 25px) !important;
    padding: var(--spacing-lg) !important;
    padding-top: 60px !important;
  }

  .menu-icon {
    width: 36px !important;
    height: 36px !important;
    margin-right: var(--spacing-lg) !important;
  }

  .menu-icon .material-symbols-outlined {
    width: 22px !important;
    height: 22px !important;
  }
}

/* Extra Small devices - ≤320px */
@media (max-width: 320px) {
  .menu {
    width: 40px;
    padding: var(--spacing-xs) 0;
  }
  .menu:hover {
    width: 236px;
  }
  .menu-content li a {
    padding: var(--spacing-xs) 6px;
    min-height: 40px;
  }
  .menu-icon {
    width: 20px;
    height: 20px;
    margin-right: 6px;
  }
  .menu-icon .material-symbols-outlined {
    width: 14px;
    height: 14px;
  }
  .main-content {
    margin-left: 50px;
    padding: 8px;
    padding-top: 40px;
  }
  .welcome-card,
  .auth-card {
    padding: 12px;
    border-radius: 8px;
    margin: 5px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 1.1rem;
    line-height: 1.1;
  }
  .category-title {
    font-size: 0.5rem;
    padding: 0 6px;
  }
}

/* Small Mobile - 321px a 480px */
@media (min-width: 321px) and (max-width: 480px) {
  .menu {
    width: 50px;
    padding: var(--spacing-xs) 0;
  }
  .menu:hover {
    width: 256px;
  }
  .menu-content li a {
    padding: var(--spacing-xs) var(--spacing-sm);
    min-height: 42px;
  }
  .menu-icon {
    width: 24px;
    height: 24px;
    margin-right: var(--spacing-xs);
  }
  .menu-icon .material-symbols-outlined {
    width: 16px;
    height: 16px;
  }
  .main-content {
    margin-left: 60px;
    padding: var(--spacing-sm);
    padding-top: 50px;
  }
  .welcome-card,
  .auth-card {
    padding: var(--spacing-sm);
    border-radius: 10px;
    margin: 8px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 1.3rem;
    line-height: 1.2;
  }
  .category-title {
    font-size: 0.6rem;
    padding: 0 8px;
  }
}

/* Medium Mobile - 481px a 767px */
@media (min-width: 481px) and (max-width: 767px) {
  .menu {
    width: var(--mobile-menu-width);
    padding: var(--spacing-sm) 0;
  }
  .menu:hover {
    width: var(--mobile-expanded-width);
  }

  @supports (-webkit-touch-callout: none) {
    .menu {
      width: var(--iphone-menu-width) !important;
      padding: var(--iphone-menu-padding) 0 !important;
    }
    .menu:hover {
      width: var(--iphone-expanded-width) !important;
    }
    .main-content {
      margin-left: calc(var(--iphone-menu-width) + 15px) !important;
      padding: var(--spacing-md) !important;
      padding-top: 60px !important;
    }
  }

  .menu-content li a {
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 48px;
  }
  .menu-icon {
    width: 28px;
    height: 28px;
    margin-right: var(--spacing-sm);
  }
  .menu-icon .material-symbols-outlined {
    width: 18px;
    height: 18px;
  }
  .main-content {
    margin-left: calc(var(--mobile-menu-width) + 10px);
    padding: var(--spacing-md);
    padding-top: 60px;
  }
  .welcome-card,
  .auth-card {
    padding: var(--spacing-md);
    border-radius: 15px;
    margin: 10px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 1.6rem;
    line-height: 1.2;
  }
  .category-title {
    font-size: 0.65rem;
    padding: 0 var(--spacing-sm);
  }
}

/* Tablet Portrait - 768px a 834px */
@media (min-width: 768px) and (max-width: 834px) and (orientation: portrait) {
  .menu {
    width: 65px;
    padding: var(--spacing-sm) 0;
  }
  .menu:hover {
    width: 316px;
  }
  .menu-content li a {
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 50px;
  }
  .menu-icon {
    width: 30px;
    height: 30px;
    margin-right: var(--spacing-sm);
  }
  .menu-icon .material-symbols-outlined {
    width: 19px;
    height: 19px;
  }
  .main-content {
    margin-left: 75px;
    padding: var(--spacing-md);
    padding-top: 65px;
  }
  .welcome-card,
  .auth-card {
    padding: var(--spacing-md);
    margin: 15px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 1.8rem;
  }
}

/* Medium Tablet - 768px a 1023px */
@media (min-width: 768px) and (max-width: 1023px) {
  .menu {
    width: var(--tablet-menu-width);
  }
  .menu:hover {
    width: var(--tablet-expanded-width);
  }
  .menu-content li a {
    padding: var(--spacing-md) var(--spacing-md);
    min-height: 52px;
  }
  .menu-icon {
    width: 32px;
    height: 32px;
    margin-right: var(--spacing-md);
  }
  .menu-icon .material-symbols-outlined {
    width: 20px;
    height: 20px;
  }
  .main-content {
    margin-left: calc(var(--tablet-menu-width) + 15px);
    padding: var(--spacing-lg);
    padding-top: 70px;
  }
  .welcome-card,
  .auth-card {
    padding: var(--spacing-lg);
    margin: 20px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 2rem;
  }
  .category-title {
    font-size: 0.7rem;
  }
}

/* Large Tablet Landscape - 1024px a 1365px */
@media (min-width: 1024px) and (max-width: 1365px) and (orientation: landscape) {
  .menu {
    width: 80px;
  }
  .menu:hover {
    width: 346px;
  }
  .menu-content li a {
    padding: var(--spacing-md) var(--spacing-lg);
    min-height: 54px;
  }
  .menu-icon {
    width: 34px;
    height: 34px;
    margin-right: var(--spacing-md);
  }
  .menu-icon .material-symbols-outlined {
    width: 21px;
    height: 21px;
  }
  .main-content {
    margin-left: 90px;
    padding: var(--spacing-lg);
    padding-top: 75px;
  }
  .welcome-card,
  .auth-card {
    padding: var(--spacing-lg);
    margin: 25px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 2.2rem;
  }
}

/* Small Desktop/Laptop - 1024px a 1365px */
@media (min-width: 1024px) and (max-width: 1365px) {
  .menu {
    width: var(--desktop-menu-width);
  }
  .menu:hover {
    width: var(--desktop-expanded-width);
  }
  .main-content {
    margin-left: calc(var(--desktop-menu-width) + 15px);
    padding: var(--spacing-lg);
    padding-top: 80px;
  }
  .welcome-card,
  .auth-card {
    padding: var(--spacing-lg);
    margin: 20px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 2.3rem;
  }
}

/* Medium Desktop - 1366px a 1919px */
@media (min-width: 1366px) and (max-width: 1919px) {
  .menu {
    width: var(--desktop-menu-width);
  }
  .menu:hover {
    width: var(--desktop-expanded-width);
  }
  .main-content {
    margin-left: calc(var(--desktop-menu-width) + 20px);
    padding: var(--spacing-xl);
    padding-top: 80px;
  }
  .welcome-card,
  .auth-card {
    padding: var(--spacing-xl);
    margin: 30px;
    max-width: 700px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 2.5rem;
  }
}

/* Large Desktop - 1920px a 2559px */
@media (min-width: 1920px) and (max-width: 2559px) {
  .menu {
    width: 90px;
  }
  .menu:hover {
    width: 376px;
  }
  .menu-content li a {
    padding: var(--spacing-lg) var(--spacing-xl);
    min-height: 60px;
  }
  .menu-icon {
    width: 36px;
    height: 36px;
  }
  .menu-icon .material-symbols-outlined {
    width: 22px;
    height: 22px;
  }
  .main-content {
    margin-left: 110px;
    padding: 50px;
    padding-top: 80px;
  }
  .welcome-card,
  .auth-card {
    padding: 50px;
    margin: 40px;
    max-width: 800px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 3rem;
  }
  .category-title {
    font-size: 0.75rem;
  }
}

/* Extra Large Desktop (4K+) - ≥2560px */
@media (min-width: 2560px) {
  .menu {
    width: 100px;
  }
  .menu:hover {
    width: 320px;
  }
  .menu-content li a {
    padding: 20px 25px;
    min-height: 65px;
  }
  .menu-icon {
    width: 40px;
    height: 40px;
  }
  .menu-icon .material-symbols-outlined {
    width: 24px;
    height: 24px;
  }
  .main-content {
    margin-left: 120px;
    padding: 60px;
    padding-top: 80px;
  }
  .welcome-card,
  .auth-card {
    padding: 60px;
    margin: 50px;
    max-width: 900px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 3.5rem;
  }
  .category-title {
    font-size: 0.8rem;
  }
}

/* Landscape Mobile */
@media (max-width: 767px) and (orientation: landscape) {
  .menu {
    width: 45px;
  }
  .menu:hover {
    width: 170px;
  }
  .main-content {
    margin-left: 55px;
    padding: var(--spacing-sm);
    padding-top: 40px;
  }
  .welcome-card,
  .auth-card {
    padding: var(--spacing-sm);
    margin: 8px;
  }
  .welcome-card h1,
  .auth-card h1 {
    font-size: 1.4rem;
    margin-bottom: 8px;
  }
}

/* Tablet Portrait */
@media (min-width: 768px) and (max-width: 1023px) and (orientation: portrait) {
  .menu {
    width: 65px;
  }
  .menu:hover {
    width: 240px;
  }
  .main-content {
    margin-left: 75px;
    padding: var(--spacing-md);
  }
}

/* Touch optimizations */
@media (hover: none) and (pointer: coarse) {
  .menu-content li:hover {
    transform: none;
  }

  .menu-content li:active {
    background: rgba(196, 149, 106, 0.2);
    transform: scale(0.98);
  }

  .menu-icon {
    min-width: 44px;
    min-height: 44px;
  }

  .menu.touch-active {
    width: var(--iphone-expanded-width) !important;
  }

  .menu.touch-active .menu-text {
    opacity: 1 !important;
    transform: translateX(0) !important;
    visibility: visible !important;
  }

  .menu {
    transition: width 0.4s ease;
  }

  @supports (-webkit-touch-callout: none) {
    .menu-content li a {
      min-height: 48px !important;
      padding: 12px 18px !important;
    }

    .menu-icon {
      min-width: 40px !important;
      min-height: 40px !important;
    }

    .category-title {
      font-size: 0.7rem !important;
      padding: 0 12px !important;
    }
  }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .menu-icon .material-symbols-outlined {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }

  .welcome-card,
  .auth-card {
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.25);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .menu,
  .menu-content li,
  .menu-icon,
  .menu-text,
  .welcome-card,
  .auth-card,
  .btn {
    transition: none;
    animation: none;
  }

  .menu-content li:hover .menu-icon {
    transform: none;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .menu {
    border-right: 3px solid #ffffff;
    background: rgba(0, 0, 0, 0.9);
  }

  .menu-content li {
    border: 2px solid rgba(255, 255, 255, 0.5);
    margin: 3px;
  }

  .welcome-card,
  .auth-card {
    border: 3px solid rgba(255, 255, 255, 0.5);
    background: rgba(0, 0, 0, 0.8);
  }
}

/* Print styles */
@media print {
  .menu {
    display: none;
  }

  .main-content {
    margin-left: 0;
    padding: 20px;
    color: #000000;
    padding-top: 40px;
  }

  .welcome-card,
  .auth-card {
    background: #ffffff;
    border: 2px solid #000000;
    box-shadow: none;
    backdrop-filter: none;
  }

  .welcome-card h1,
  .auth-card h1 {
    color: #000000;
    -webkit-text-fill-color: #000000;
  }
}

/* Safe area para dispositivos con notch */
@supports (padding-top: env(safe-area-inset-top)) {
  .main-content {
    padding-top: max(20px, env(safe-area-inset-top));
  }

  .menu {
    padding-top: max(10px, env(safe-area-inset-top));
  }
}

/* ========== ESTILOS PARA PÁGINAS DE AUTH (SIN MENÚ) ========== */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.auth-container .auth-card {
  margin: 0 auto;
}

/* ========== TOAST DE ACTUALIZACIÓN PWA ========== */
.update-toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #C4956A 0%, #A0845C 100%);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 12px;
  display: flex;
  gap: 15px;
  align-items: center;
  z-index: 10000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  animation: slideUp 0.3s ease-out;
  max-width: 90%;
}

.update-toast.hidden {
  display: none;
}

.update-toast-content {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
}

.update-toast-icon {
  font-size: 20px;
  animation: spin 2s linear infinite;
}

.update-toast-btn {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  transition: background 0.2s ease;
}

.update-toast-btn:hover {
  background: rgba(255, 255, 255, 0.4);
}

.update-toast-close {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  font-size: 18px;
  padding: 0 5px;
  line-height: 1;
}

.update-toast-close:hover {
  color: #ffffff;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Responsive para móviles */
@media (max-width: 480px) {
  .update-toast {
    bottom: 70px; /* Evitar el menú inferior si existe */
    padding: 10px 15px;
    gap: 10px;
  }

  .update-toast-content {
    font-size: 13px;
  }

  .update-toast-btn {
    padding: 6px 12px;
    font-size: 12px;
  }
}

/* ========== BANNER DE ACTUALIZACIÓN PWA ========== */
.update-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(90deg, #C4956A, #A0845C);
  padding: 12px 20px;
  z-index: 10000;
  transform: translateY(-100%);
  transition: transform 0.3s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.update-banner.show {
  transform: translateY(0);
}

.update-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  max-width: 600px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.update-icon {
  font-size: 1.3rem;
  line-height: 1;
}

.update-text {
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 500;
}

.update-btn {
  background: #ffffff;
  color: #A0845C;
  border: none;
  padding: 8px 20px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  font-family: 'Poppins', sans-serif;
  transition: all 0.2s ease;
}

.update-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

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

.update-close {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0 5px;
  line-height: 1;
  transition: color 0.2s ease;
}

.update-close:hover {
  color: #ffffff;
}

/* Responsive para móviles */
@media (max-width: 480px) {
  .update-banner {
    padding: 10px 15px;
  }

  .update-content {
    gap: 10px;
  }

  .update-text {
    font-size: 0.85rem;
    flex: 1;
    text-align: center;
  }

  .update-btn {
    padding: 6px 15px;
    font-size: 0.85rem;
  }

  .update-icon {
    display: none;
  }
}