/* ==========================================================================
   Components: buttons, badges, forms, price, product card, WhatsApp float,
   dev stub, style guide helpers.
   ========================================================================== */

/* Buttons ---------------------------------------------------------------- */
.btn {
  --btn-bg: transparent; --btn-fg: var(--color-primary); --btn-border: transparent;
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2xs);
  min-height: 48px; padding: 0 var(--space-m);
  border-radius: var(--radius-pill); border: 1.5px solid var(--btn-border);
  background: var(--btn-bg); color: var(--btn-fg);
  font-weight: 500; letter-spacing: .01em; text-decoration: none; white-space: nowrap;
  transition: background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .15s var(--ease);
}
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.btn--primary { --btn-bg: var(--color-primary); --btn-fg: var(--color-white); }
.btn--primary:hover:not(:disabled) { --btn-bg: var(--color-primary-dark); }
.btn--accent { --btn-bg: var(--color-accent-dark); --btn-fg: var(--color-white); }
.btn--accent:hover:not(:disabled) { --btn-bg: var(--color-primary); }
.btn--outline { --btn-border: var(--color-primary); }
.btn--outline:hover:not(:disabled) { --btn-bg: var(--color-primary); --btn-fg: var(--color-white); }
.btn--light { --btn-bg: var(--color-white); --btn-fg: var(--color-primary); }
.btn--light:hover { --btn-bg: var(--color-blush); }
.btn--outline-light { --btn-border: color-mix(in srgb, var(--color-white) 65%, transparent); --btn-fg: var(--color-white); }
.btn--outline-light:hover { --btn-bg: var(--color-white); --btn-fg: var(--color-primary); }
.btn--whatsapp { --btn-bg: var(--color-whatsapp); --btn-fg: var(--color-white); }
.btn--whatsapp:hover { --btn-bg: color-mix(in srgb, var(--color-whatsapp) 85%, black); }
.btn--sm { min-height: 40px; padding: 0 var(--space-s); font-size: var(--step--1); }
.btn--block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-xs); align-items: center; }

/* Badges ----------------------------------------------------------------- */
.badge {
  display: inline-block; padding: .2em .7em; border-radius: var(--radius-pill);
  font-size: .78rem; font-weight: 500; line-height: 1.5; letter-spacing: .02em;
  background: var(--color-white); color: var(--color-primary);
}
.badge--new { background: var(--color-primary); color: var(--color-white); }
.badge--sale { background: var(--color-accent); color: var(--color-white); }
.badge--best { background: var(--color-white); color: var(--color-accent-dark); box-shadow: inset 0 0 0 1px currentColor; }
.badge--out { background: var(--color-text); color: var(--color-white); }

/* Forms ------------------------------------------------------------------ */
.form { display: grid; gap: var(--space-m); }
.field { display: grid; gap: var(--space-3xs); }
.field label { font-weight: 500; font-size: var(--step--1); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 48px; padding: var(--space-2xs) var(--space-s);
  background: var(--color-white); border: 1.5px solid var(--color-line-strong);
  border-radius: var(--radius-m); transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 18%, transparent);
}
.field--error input, .field--error select, .field--error textarea { border-color: var(--color-error); }
.field__error { color: var(--color-error); font-size: var(--step--1); }
.field__help { color: var(--color-muted); font-size: var(--step--1); }

.check { display: flex; gap: var(--space-2xs); align-items: flex-start; font-size: var(--step--1); }
.check input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--color-primary); flex: none; }

/* Option pickers (sizes, volumes). Swatches get added in SIG-011. */
.option-group { display: flex; flex-wrap: wrap; gap: var(--space-2xs); }
.option { position: relative; }
.option input { position: absolute; opacity: 0; inset: 0; cursor: pointer; }
.option span {
  display: inline-grid; place-items: center; min-width: 56px; min-height: 44px; padding: 0 var(--space-s);
  border: 1.5px solid var(--color-line-strong); border-radius: var(--radius-pill);
  font-weight: 500; transition: all .2s var(--ease);
}
.option input:checked + span { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-white); }
.option input:focus-visible + span { outline: 2px solid var(--color-accent-dark); outline-offset: 2px; }
.option input:disabled + span { opacity: .4; text-decoration: line-through; cursor: not-allowed; }

/* Price ------------------------------------------------------------------ */
.price { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-2xs); }
.price__now { font-weight: 500; color: var(--color-text); }
.price__now--sale { color: var(--color-accent-dark); }
.price__was { color: var(--color-muted); font-size: var(--step--1); }
.price__request { color: var(--color-muted); font-style: italic; }

/* Product card ----------------------------------------------------------- */
.product-card { display: flex; flex-direction: column; gap: var(--space-xs); }
.product-card__media {
  position: relative; display: block; overflow: hidden;
  aspect-ratio: 4 / 5; border-radius: var(--radius-s); background: var(--color-surface);
}
.product-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease), opacity .4s var(--ease); }
.product-card__hover { position: absolute; inset: 0; opacity: 0; }
@media (hover: hover) {
  .product-card:hover .product-card__media img { transform: scale(1.03); }
  .product-card:hover .product-card__hover { opacity: 1; }
}
.product-card__body { display: flex; flex-direction: column; gap: var(--space-3xs); flex: 1; }
.product-card__category { font-size: var(--step--1); color: var(--color-muted); }
.product-card__name { font-family: var(--font-body); font-size: var(--step-0); font-weight: 500; color: var(--color-text); line-height: 1.35; }
.product-card__name a { text-decoration: none; }
.product-card__name a:hover { color: var(--color-primary); }
.product-card .price { margin-bottom: var(--space-2xs); }
.product-card .btn { margin-top: auto; }

/* Product card extras ------------------------------------------------------ */
.product-card { position: relative; }
.product-card__badges { position: absolute; top: var(--space-2xs); left: var(--space-2xs); display: flex; flex-wrap: wrap; gap: var(--space-3xs); list-style: none; padding: 0; z-index: 1; pointer-events: none; }
.price__from { color: var(--color-muted); font-size: var(--step--1); }
.price--lg { font-size: var(--step-2); }
.price--lg .price__was { font-size: var(--step-0); }
.price__save { font-size: var(--step--1); color: var(--color-accent-dark); font-weight: 500; }

/* Carousel ----------------------------------------------------------------- */
.carousel { position: relative; }
.carousel__track {
  display: flex; gap: var(--space-m); overflow-x: auto; scroll-snap-type: x mandatory;
  scrollbar-width: none; padding-bottom: var(--space-2xs); scroll-padding-inline: var(--gutter);
}
.carousel__track::-webkit-scrollbar { display: none; }
.carousel__item { flex: 0 0 min(220px, 62%); scroll-snap-align: start; }
.carousel__btn {
  position: absolute; top: 38%; background: var(--color-white); box-shadow: var(--shadow-soft);
  display: none;
}
.carousel__btn--prev { left: -18px; }
.carousel__btn--next { right: -18px; }
@media (hover: hover) and (min-width: 900px) { .carousel__btn { display: grid; } }

/* Option pickers (product page and order dialog) */
.picker { border: 0; padding: 0; min-width: 0; display: grid; gap: var(--space-2xs); }
.picker legend { font-weight: 500; margin-bottom: var(--space-2xs); padding: 0; }
.picker__chosen { color: var(--color-muted); font-weight: 400; }
.picker select { min-height: 48px; padding: 0 var(--space-s); background: var(--color-white); border: 1.5px solid var(--color-line-strong); border-radius: var(--radius-m); max-width: 320px; }
.picker--error .option span, .picker--error select { border-color: var(--color-error); }
.option--swatch span.swatch { min-width: 0; width: 40px; height: 40px; padding: 0; border-radius: 50%; background: var(--swatch); }
.option--swatch input:checked + span.swatch { background: var(--swatch); box-shadow: 0 0 0 3px var(--color-bg), 0 0 0 5px var(--color-primary); }

/* Order dialog ------------------------------------------------------------------ */
.order-dialog {
  border: 0; padding: 0; width: min(480px, calc(100vw - 2rem)); max-height: calc(100dvh - 2rem);
  border-radius: var(--radius-l); background: var(--color-bg); color: var(--color-text);
  box-shadow: 0 30px 80px -20px rgb(0 0 0 / .4); margin: auto; overflow-y: auto;
}
.order-dialog::backdrop { background: color-mix(in srgb, var(--color-primary-dark) 55%, transparent); }
.order { padding: var(--space-m); display: grid; gap: var(--space-m); }
.order__head { display: flex; justify-content: space-between; align-items: start; gap: var(--space-s); }
.order__title { font-size: var(--step-2); }
.order__title:focus { outline: none; }
.order__product { display: grid; grid-template-columns: 72px 1fr; gap: var(--space-s); align-items: center; padding-bottom: var(--space-s); border-bottom: 1px solid var(--color-line); }
.order__product img { width: 72px; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--radius-s); background: var(--color-surface); }
.order__name { font-weight: 500; }
.order__options { font-size: var(--step--1); color: var(--color-muted); }
.link-btn { color: var(--color-accent-dark); text-decoration: underline; text-underline-offset: 3px; margin-left: var(--space-2xs); }
.order__actions { display: grid; gap: var(--space-xs); }
.order__thanks { font-family: var(--font-heading); font-size: var(--step-2); color: var(--color-primary); }
.form-alert { padding: var(--space-xs) var(--space-s); border-radius: var(--radius-m); background: color-mix(in srgb, var(--color-error) 10%, white); color: var(--color-error); font-size: var(--step--1); }
.stepper { display: inline-flex; align-items: center; gap: var(--space-2xs); }
.stepper input { width: 64px; text-align: center; min-height: 44px; border: 1.5px solid var(--color-line-strong); border-radius: var(--radius-m); background: var(--color-white); -moz-appearance: textfield; }
.stepper input::-webkit-outer-spin-button, .stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

@media (max-width: 599px) {
  .order-dialog { width: 100vw; max-width: 100vw; margin: auto 0 0; border-radius: var(--radius-l) var(--radius-l) 0 0; max-height: 92dvh; }
}
@media (prefers-reduced-motion: no-preference) {
  .order-dialog[open] { animation: sheet-in .28s var(--ease); }
  @keyframes sheet-in { from { opacity: 0; transform: translateY(16px); } }
}

/* Lightbox (product zoom and gallery) */
.lightbox { border: 0; padding: 0; background: transparent; max-width: 100vw; max-height: 100dvh; width: 100vw; height: 100dvh; }
.lightbox::backdrop { background: color-mix(in srgb, var(--color-primary-dark) 92%, black); }
.lightbox[open] { display: grid; place-items: center; }
.lightbox img { max-width: min(94vw, 1100px); max-height: 92dvh; object-fit: contain; }
.lightbox .icon-btn { position: fixed; color: var(--color-white); background: color-mix(in srgb, var(--color-white) 14%, transparent); }
.lightbox__close { top: var(--space-s); right: var(--space-s); }
.lightbox__prev { left: var(--space-s); top: 50%; }
.lightbox__next { right: var(--space-s); top: 50%; }

/* WhatsApp float --------------------------------------------------------- */
.wa-float {
  position: fixed; right: clamp(1rem, 3vw, 1.75rem); bottom: clamp(1rem, 3vw, 1.75rem); z-index: 50;
  display: grid; place-items: center; width: 58px; height: 58px; border-radius: var(--radius-pill);
  background: var(--color-whatsapp); color: var(--color-white);
  box-shadow: 0 10px 24px -8px rgb(0 0 0 / .35);
  transition: transform .2s var(--ease);
}
.wa-float:hover { transform: scale(1.06); }

/* Dev stub (DEBUG only) -------------------------------------------------- */
.dev-stub {
  display: flex; flex-wrap: wrap; gap: var(--space-2xs) var(--space-s); align-items: baseline;
  padding: var(--space-m); border: 1.5px dashed var(--color-line-strong); border-radius: var(--radius-m);
  color: var(--color-muted); font-size: var(--step--1);
}
.dev-stub strong { color: var(--color-primary); font-size: var(--step-0); }
.page-home .section:has(.dev-stub) { padding-block: var(--space-m); }

/* Style guide ------------------------------------------------------------ */
.styleguide { padding-bottom: var(--space-2xl); }
.sg-block { padding-block: var(--space-xl); border-top: 1px solid var(--color-line); }
.sg-block > h2 { font-size: var(--step-3); margin-bottom: var(--space-m); }
.sg-block > * + * { margin-top: var(--space-s); }
.sg-swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: var(--space-m); }
.sg-swatches li { display: grid; gap: var(--space-3xs); font-size: var(--step--1); }
.sg-swatch { height: 72px; border-radius: var(--radius-m); box-shadow: inset 0 0 0 1px var(--color-line); }
.sg-dark { background: var(--color-primary); padding: var(--space-m); border-radius: var(--radius-m); }
.sg-form { max-width: 420px; }
.sg-script { color: var(--color-accent-dark) !important; }