/*
 * Nekomiau — Components
 * =====================
 * Block layer (CUBE CSS): one conceptual component per block class. Class
 * names below are the ones already referenced in app/views/**/*.erb — no
 * markup/classes invented beyond what's listed as a to-do comment.
 *
 * State is expressed via modifier classes (--out, --placeholder) or plain
 * data-attributes (is-current, is-active, aria-current) that a future
 * Stimulus controller can toggle without any CSS changes.
 */

/* ==========================================================================
   Flash messages
   ========================================================================== */

/* Entrance animation: .flash has no wrapping id of its own, so it is always a
   freshly-mounted element whenever it appears (initial page render, or via
   Turbo Stream replacing #flash_messages) — a plain @keyframes here replays
   automatically with no JS. One subtle motion only: slide down + fade in. */
@keyframes flash-enter {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.flash {
  padding: var(--space-3) var(--space-6);
  margin: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  background-color: var(--feedback-notice-bg);
  color: var(--feedback-notice-text);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  animation: flash-enter var(--duration-base) var(--ease-out);
}

.flash--notice {
  background-color: var(--feedback-success-bg);
  color: var(--feedback-success-text);
}

.flash--alert,
.flash--error {
  background-color: var(--feedback-error-bg);
  color: var(--feedback-error-text);
}

/* ==========================================================================
   Buttons
   (bare <button>/submit already styled at the base layer in tokens.css;
   .button is the explicit class used by carts/_body.html.erb's "continue to
   checkout" link, which needs button styling despite being an <a>.)
   ========================================================================== */

.button {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-base);
  color: var(--text-on-brand);
  background-color: var(--brand-primary);
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-6);
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}

.button:hover {
  background-color: var(--brand-contrast);
  color: var(--text-on-brand);
}

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

/* ==========================================================================
   Forms
   ========================================================================== */

.field {
  margin-bottom: var(--space-4);
}

.field label {
  margin-bottom: var(--space-1);
}

.field-hint {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin-top: calc(var(--space-1) * -1 + var(--space-1));
  margin-bottom: var(--space-2);
}

.form-errors {
  background-color: var(--feedback-error-bg);
  color: var(--feedback-error-text);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
}

.form-errors ul {
  margin: 0;
  padding-left: var(--space-4);
}

/* ==========================================================================
   Auth (sessions/registrations "Continuar con Google", otp/* enrollment)
   ========================================================================== */

/* Google's own brand guidelines call for a neutral (not brand-red) button —
   white surface, visible border, multicolor "G" mark. */
.button--google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  width: 100%;
  max-width: 28rem;
  background-color: var(--surface-raised);
  color: var(--text-primary);
  border: 1px solid var(--border-color-strong);
}

.button--google:hover {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

.google-icon {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  max-width: 28rem;
  color: var(--text-secondary);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: var(--border-color);
}

.otp-qr {
  display: inline-block;
  background-color: var(--surface-raised);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
}

.otp-qr img {
  display: block;
  width: 12rem;
  height: 12rem;
}

/* ==========================================================================
   Product grid + card (products/index.html.erb, products/_product_card)
   ========================================================================== */

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  padding: 0 var(--space-6) var(--space-8);
}

@media (min-width: 640px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.product-card {
  position: relative;
  display: block;
  color: inherit;
  text-decoration: none;
  background-color: var(--surface-raised);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  transition: transform var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard);
}

.product-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: var(--border-color-strong);
}

.product-card__media {
  position: relative;
  margin-bottom: var(--space-2);
}

.product-card__photo {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
}

.product-card__photo--placeholder {
  display: flex;
}

/* "Ahorra %" ribbon for pack SKUs (research point 2) */
.product-card__badge {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  background-color: var(--brand-secondary);
  color: var(--text-primary);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  margin: 0;
}

.product-card__name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  margin: 0 0 var(--space-1);
  line-height: var(--leading-snug);
}

.product-card__presentation {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin: 0 0 var(--space-2);
}

.product-card__price {
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
  color: var(--brand-primary);
  margin: 0;
}

.product-card__pack-savings {
  font-size: var(--text-xs);
  color: var(--brand-natural);
  font-weight: var(--font-weight-semibold);
  margin: var(--space-1) 0 0;
}

.product-card__stock {
  font-size: var(--text-xs);
  margin: var(--space-1) 0 0;
}

.product-card__stock--out {
  color: var(--brand-primary);
  font-weight: var(--font-weight-semibold);
}

/* Stretched link: the whole card navigates to the detail page, while the
   add-to-cart button (higher z-index) stays independently clickable. */
.product-card__name {
  position: relative;
}

.product-card__link {
  color: inherit;
  text-decoration: none;
}

.product-card__link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
}

.product-card__link:hover {
  text-decoration: none;
}

/* 1-click "Comprar ahora" — primary purchase action, above the stretched link. */
.product-card__buy-now {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;   /* 44px touch target */
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-body);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-sm);
  color: var(--text-on-brand);
  background-color: var(--brand-primary);
  border-radius: var(--radius-sm);
  text-align: center;
  text-decoration: none;
  transition: background-color var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}

.product-card__buy-now:hover {
  background-color: var(--brand-contrast);
  text-decoration: none;
}

.product-card__buy-now:active {
  transform: translateY(1px);
}

/* Add-to-cart FAB (products index) — floats over the photo's lower-right.
   Three stacked icons; the active one is revealed by state classes the
   add-to-cart Stimulus controller toggles on the form. */
.add-to-cart {
  position: absolute;
  right: var(--space-2);
  bottom: var(--space-2);
  margin: 0;
  z-index: 2;
}

.add-to-cart__btn {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.75rem;   /* 44px — touch target minimum */
  height: 2.75rem;
  padding: 0;
  border-radius: var(--radius-full);
  background-color: var(--brand-primary);
  color: var(--text-on-brand);
  box-shadow: var(--shadow-md);
  transition: background-color var(--duration-base) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}

.add-to-cart__btn:hover {
  background-color: var(--brand-contrast);
}

.add-to-cart__btn:active {
  transform: scale(0.92);
}

.add-to-cart__btn:disabled {
  cursor: progress;
  background-color: var(--brand-primary);
  transform: none;
}

.add-to-cart__ic {
  grid-area: 1 / 1;   /* stack all three icons in the same cell */
  width: 1.35rem;
  height: 1.35rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0;
  transform: scale(0.6);
  transition: opacity var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
}

.add-to-cart__track {
  opacity: 0.3;
}

/* idle → plus */
.add-to-cart .add-to-cart__ic--plus {
  opacity: 1;
  transform: scale(1);
}

.add-to-cart.is-loading .add-to-cart__ic--plus,
.add-to-cart.is-success .add-to-cart__ic--plus {
  opacity: 0;
  transform: scale(0.6);
}

/* loading → spinner */
.add-to-cart.is-loading .add-to-cart__ic--spin {
  opacity: 1;
  transform: scale(1);
  animation: add-to-cart-spin 0.7s linear infinite;
}

/* success → check + calm the button to the "natural/success" green */
.add-to-cart.is-success .add-to-cart__btn {
  background-color: var(--brand-natural);
}

.add-to-cart.is-success .add-to-cart__ic--check {
  opacity: 1;
  transform: scale(1);
}

@keyframes add-to-cart-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .add-to-cart__ic {
    transition: opacity var(--duration-fast) linear;
    transform: none;
  }
  .add-to-cart .add-to-cart__ic--plus,
  .add-to-cart.is-loading .add-to-cart__ic--spin,
  .add-to-cart.is-success .add-to-cart__ic--check {
    transform: none;
  }
  .add-to-cart.is-loading .add-to-cart__ic--spin {
    animation: none;
  }
  .add-to-cart__btn:active {
    transform: none;
  }
}

/* ==========================================================================
   Product detail (products/show.html.erb)
   ========================================================================== */

.product-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  padding: var(--space-6);
  max-width: var(--container-lg);
  margin-inline: auto;
}

@media (min-width: 768px) {
  .product-detail {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
    padding: var(--space-8);
  }
}

.product-detail__photos {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.product-detail__photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-md);
  background-color: var(--bg-secondary);
}

.product-detail__photo--placeholder {
  display: flex;
}

.product-detail__info {
  display: flex;
  flex-direction: column;
}

.product-detail__badge {
  display: inline-block;
  align-self: flex-start;
  background-color: var(--brand-secondary);
  color: var(--text-primary);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  margin: 0 0 var(--space-2);
}

.product-detail__name {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-1);
}

.product-detail__category {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-3);
}

.product-detail__presentation,
.product-detail__contents {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

.product-detail__price {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--brand-primary);
  margin: var(--space-3) 0 0;
}

.product-detail__pack-savings {
  font-size: var(--text-sm);
  color: var(--brand-natural);
  font-weight: var(--font-weight-semibold);
  margin: var(--space-1) 0 0;
}

.product-detail__description {
  font-weight: var(--font-weight-light);
  color: var(--text-secondary);
  margin: var(--space-4) 0;
}

.product-detail__stock {
  font-size: var(--text-sm);
  margin: var(--space-2) 0;
}

.product-detail__stock--out {
  color: var(--brand-primary);
  font-weight: var(--font-weight-semibold);
}

/* Add-to-cart form: sticky on mobile while scrolling the PDP (research point
   3), reverts to normal in-flow placement from tablet up. Achieved purely
   with CSS on the existing .add-to-cart-form class — no new markup. */
.add-to-cart-form {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin-top: var(--space-4);
}

.add-to-cart-form__quantity {
  width: 5rem;
  max-width: 5rem;
  margin: 0;
}

.add-to-cart-form input[type="submit"] {
  flex: 1;
  margin: 0;
}

@media (max-width: 767px) {
  .add-to-cart-form {
    position: sticky;
    bottom: 0;
    z-index: 10;
    background-color: var(--surface-raised);
    border-top: 1px solid var(--border-color);
    padding: var(--space-3) var(--space-4);
    margin: var(--space-6) calc(var(--space-4) * -1) 0;
    box-shadow: var(--shadow-md);
  }
}

/* ==========================================================================
   Cart badge (carts/_cart_badge.html.erb, in .site-header__nav)
   ========================================================================== */

.cart-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
}

/* Pulse on add-to-cart: cart_badge is replaced wholesale via Turbo Stream
   (the root <a id="cart_badge"> is re-rendered by carts/_cart_badge on every
   mutation, so this element is genuinely re-mounted, not just patched) — a
   mount-triggered @keyframes here replays automatically, no JS needed. */
@keyframes cart-badge-pulse {
  0% {
    transform: scale(0);
    background-color: var(--brand-contrast);
  }
  60% {
    transform: scale(1.15);
  }
  100% {
    transform: scale(1);
    background-color: var(--brand-primary);
  }
}

.cart-badge__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  margin-left: var(--space-1);
  padding: 0 var(--space-1);
  border-radius: var(--radius-full);
  background-color: var(--brand-primary);
  color: var(--text-on-brand);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  animation: cart-badge-pulse var(--duration-base) var(--ease-out);
}

/* ==========================================================================
   Cart (carts/show, _body, _cart_item)
   ========================================================================== */

/* El carrito usa el contenedor estándar .page (layout.css); los bloques
   internos ya no traen padding/max-width propios. */
.cart-items {
  padding: 0;
}

.cart-item {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border-color);
}

.cart-item__photo {
  flex: 0 0 auto;
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
}

.cart-item__photo--placeholder {
  display: flex;
}

.cart-item__info {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-1) var(--space-4);
}

.cart-item__name {
  grid-column: 1 / -1;
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: var(--text-md);
  margin: 0;
}

.cart-item__unit-price {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin: 0;
}

.cart-item__quantity-form {
  margin: 0;
}

.cart-item__quantity-form input {
  width: 4.5rem;
  margin: 0;
}

.cart-item__subtotal {
  grid-column: 1 / -1;
  font-weight: var(--font-weight-semibold);
  color: var(--brand-primary);
  margin: 0;
}

.cart-item__remove {
  grid-column: 1 / -1;
  justify-self: start;
  background: none;
  color: var(--text-secondary);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-regular);
  text-decoration: underline;
  padding: 0;
}

.cart-item__remove:hover {
  background: none;
  color: var(--brand-primary);
}

.cart-total {
  padding: var(--space-4) 0;
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-lg);
}

.cart-empty {
  color: var(--text-secondary);
}

/* ==========================================================================
   Order tracking (orders/trackings/show.html.erb)
   ========================================================================== */

.tracking-status {
  font-weight: var(--font-weight-semibold);
}

.tracking-cancelled {
  color: var(--brand-primary);
  font-weight: var(--font-weight-semibold);
}

/* ==========================================================================
   Reduced motion — the mount-triggered pulse/entrance animations above are
   decorative, not load-bearing, so users who prefer reduced motion get the
   end state instantly instead.
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .cart-badge__count,
  .flash {
    animation: none;
  }
}

.tracking-timeline {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0;
}

.tracking-timeline li {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
}

.tracking-timeline li.is-current {
  background-color: var(--brand-primary);
  color: var(--text-on-brand);
}

.tracking-items {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-4);
}

.tracking-items li {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border-color);
}

/* orders/payments/show.html.erb: "pago en revisión" notice */
.payment-notice {
  background-color: var(--feedback-notice-bg);
  color: var(--feedback-notice-text);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  font-weight: var(--font-weight-semibold);
}

/* ==========================================================================
   Admin: product photo manager (admin/products/edit.html.erb)
   ========================================================================== */

.admin-product__photos ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  list-style: none;
  padding: 0;
}

.admin-product__photos li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.admin-product__photos img {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
}