/* ==========================================================================
   Layout — Container, Grid, Responsive Structure
   ========================================================================== */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

@media (min-width: 481px) {
  .container {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

/* Site wrapper */
.site {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site__content {
  flex: 1;
  padding-top: var(--header-height);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 481px) {
  .grid {
    gap: var(--space-lg);
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 769px) {
  .grid {
    gap: var(--space-lg);
    grid-template-columns: repeat(3, 1fr);
  }

  .grid--4col {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Section spacing */
.section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

@media (min-width: 769px) {
  .section {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }
}

/* Alternate background */
.section--surface {
  background-color: var(--color-surface);
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  transition: height 0.2s ease, box-shadow 0.2s ease;
}

.header.is-scrolled {
  height: var(--header-height-scrolled);
  box-shadow: var(--shadow-card);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo img {
  height: 32px;
  width: auto;
}

.header__menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-min);
  height: var(--touch-min);
  padding: 0;
  background: none;
  border: none;
  color: var(--color-text-body);
  cursor: pointer;
}

.header__icon {
  width: 24px;
  height: 24px;
}

/* Desktop nav — hidden on mobile */
.header__nav {
  display: none;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.header__nav-link {
  position: relative;
  color: var(--color-text-body);
  font-weight: 500;
  padding: var(--space-sm) 0;
  min-height: var(--touch-min);
  display: flex;
  align-items: center;
}

.header__nav-link:hover,
.header__nav-link.is-active {
  color: var(--color-cta);
}

.header__nav-link.is-active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-cta);
}

/* Dropdown nav */
.header__nav-item--has-dropdown {
  position: relative;
}

.header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: var(--space-xs) 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  list-style: none;
  margin: 0;
  z-index: 10;
}

.header__nav-item--has-dropdown:hover .header__dropdown,
.header__nav-item--has-dropdown:focus-within .header__dropdown {
  opacity: 1;
  visibility: visible;
}

.header__dropdown-link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text-body);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s ease;
}

.header__dropdown-link:hover,
.header__dropdown-link:focus {
  background: var(--color-surface);
  color: var(--color-brand-text);
}

.header__dropdown-separator {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-xs) 0;
  list-style: none;
}

/* Cart */
.header__cart {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-min);
  height: var(--touch-min);
  color: var(--color-text-body);
}

.header__cart:hover {
  color: var(--color-cta);
}

.header__cart-badge {
  position: absolute;
  top: 4px;
  right: 0;
}

/* Desktop: show nav, hide hamburger */
@media (min-width: 769px) {
  .header__menu-toggle {
    display: none;
  }

  .header__nav {
    display: block;
  }
}

/* ==========================================================================
   Mobile Navigation
   ========================================================================== */

.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  visibility: hidden;
  pointer-events: none;
}

.mobile-nav.is-open {
  visibility: visible;
  pointer-events: auto;
}

.mobile-nav__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-nav.is-open .mobile-nav__overlay {
  opacity: 1;
}

.mobile-nav__panel {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  max-width: 80vw;
  background: var(--color-background);
  padding: var(--space-lg);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.mobile-nav.is-open .mobile-nav__panel {
  transform: translateX(0);
}

.mobile-nav__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--touch-min);
  height: var(--touch-min);
  padding: 0;
  margin-bottom: var(--space-lg);
  background: none;
  border: none;
  color: var(--color-text-body);
  cursor: pointer;
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav__link {
  display: flex;
  align-items: center;
  min-height: var(--touch-min);
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text-body);
  font-size: var(--font-size-lg);
  font-weight: 500;
  border-radius: var(--border-radius-sm);
}

.mobile-nav__link:hover {
  background: var(--color-surface);
  color: var(--color-brand-text);
}

/* Mobile nav accordion */
.mobile-nav__toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  min-height: var(--touch-min);
  padding: var(--space-sm) var(--space-md);
  background: none;
  border: none;
  color: var(--color-text-body);
  font: inherit;
  font-size: var(--font-size-lg);
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--border-radius-sm);
}

.mobile-nav__toggle:hover {
  background: var(--color-surface);
  color: var(--color-brand-text);
}

.mobile-nav__submenu {
  list-style: none;
  padding: 0 0 0 var(--space-md);
  margin: 0;
}

.mobile-nav__submenu[hidden] {
  display: none;
}

.mobile-nav__submenu .mobile-nav__link {
  font-size: var(--font-size-base);
  font-weight: 400;
}

.chevron-icon {
  transition: transform 0.2s ease;
}

.mobile-nav__toggle[aria-expanded="true"] .chevron-icon {
  transform: rotate(180deg);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer__columns {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-xl);
}

@media (min-width: 769px) {
  .footer__columns {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer__heading {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-body);
  margin-bottom: var(--space-md);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__links a {
  color: var(--color-text-body);
  font-size: var(--font-size-sm);
  min-height: var(--touch-min);
  display: flex;
  align-items: center;
}

.footer__links a:hover {
  color: var(--color-brand-text);
}

/* Social */
.footer__social {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: var(--touch-min);
  color: var(--color-text-body);
  font-size: var(--font-size-sm);
}

.footer__social-link:hover {
  color: var(--color-brand-text);
}

.footer__social-link svg {
  flex-shrink: 0;
}

/* Trust */
.footer__trust {
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-border);
  margin-bottom: var(--space-md);
}

.trust-badges__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-body);
  margin-right: var(--space-sm);
}

/* Copyright */
.footer__copyright {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-body);
  opacity: 0.7;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  text-align: center;
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, #F3F0F7 0%, #F8F6F4 50%, #FDF5F4 100%);
}

.hero__content {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.hero__title {
  font-size: 28px;
  color: var(--color-brand-text);
  margin-bottom: var(--space-md);
}

.hero__lead {
  font-size: var(--font-size-lg);
  color: var(--color-text-body);
  margin-bottom: var(--space-xl);
}

.hero__cta {
  width: 100%;
}

@media (min-width: 481px) {
  .hero__title {
    font-size: 32px;
  }

  .hero__cta {
    width: auto;
  }
}

@media (min-width: 769px) {
  .hero__title {
    font-size: 32px;
  }

  .hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
  }
}

/* ==========================================================================
   Product Grid
   ========================================================================== */

/* Offset anchor for fixed header */
#productos {
  scroll-margin-top: calc(var(--header-height) + var(--space-md));
}

.product-grid__heading {
  color: var(--color-brand-text);
  margin-bottom: var(--space-lg);
}

.product-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(2, 1fr);
}

.product-grid__empty {
  text-align: center;
  color: var(--color-text-body);
  opacity: 0.7;
  padding: var(--space-2xl) 0;
}

@media (min-width: 481px) {
  .product-grid {
    gap: var(--space-lg);
  }
}

@media (min-width: 769px) {
  .product-grid {
    gap: var(--space-lg);
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1025px) {
  .product-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ==========================================================================
   Product Detail
   ========================================================================== */

.product-detail {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding-top: var(--space-lg);
  padding-bottom: var(--space-2xl);
}

.product-detail__gallery {
  width: 100%;
}

.product-detail__info {
  width: 100%;
}

@media (min-width: 769px) {
  .product-detail {
    flex-direction: row;
    gap: var(--space-2xl);
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-3xl);
  }

  .product-detail__gallery {
    flex: 1;
    max-width: 50%;
  }

  .product-detail__info {
    flex: 1;
  }
}

/* ==========================================================================
   404 Page
   ========================================================================== */

.error-404 {
  text-align: center;
  min-height: 60vh;
  display: flex;
  align-items: center;
}

.error-404__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.error-404__illustration img {
  width: 150px;
  height: auto;
}

@media (min-width: 769px) {
  .error-404__illustration img {
    width: 200px;
  }
}

.error-404 h1 {
  color: var(--color-brand-text);
}

.error-404 p {
  font-size: var(--font-size-lg);
  max-width: 400px;
}

.error-404 .btn--primary {
  width: auto;
}