:root {
  --bg: #0e1014;
  --panel-bg: rgba(20, 22, 28, 0.92);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #e8eaf0;
  --text-dim: #9aa0ad;
  --accent: #9b539c;
  --accent-strong: #b469ba;
  --danger: #e06c6c;
}

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

html,
body {
  height: 100%;
  /* Sin rebote/pull-to-refresh: los gestos sobre el modelo son del visor */
  overscroll-behavior: none;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  overflow: hidden;
}

#app {
  position: relative;
  width: 100%;
  height: 100%;
}

model-viewer {
  width: 100%;
  height: 100%;
  /* Fondo oscuro mate sin reflejos - evita el look plástico */
  background: #0a0c10;
  /* Todos los gestos (girar, pinza, arrastrar) son del visor: sin scroll,
     sin zoom del navegador y sin "arrastrar desde arriba para actualizar". */
  touch-action: none;
}

/* Botón cerrar (vuelve a la ficha del producto) */

#close-config {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 25;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(20, 22, 28, 0.92);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  font-size: 1.3rem;
  line-height: 1;
  text-decoration: none;
  transition: background 0.15s ease;
}

#close-config:hover {
  background: rgba(40, 44, 54, 0.95);
}

/* ---------------- Panel ---------------- */

#panel {
  position: absolute;
  top: 16px;
  right: 16px;
  bottom: 16px;
  width: 330px;
  max-width: calc(100vw - 32px);
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  backdrop-filter: blur(14px);
  /* Sin padding inferior: el pie (sticky) cubre el borde del panel. Con el
     padding y un margen negativo en el pie, el sticky lo subía y tapaba la
     última fila de estampados cuando solo había una fila. */
  padding: 20px 20px 0;
  overflow-y: auto;
  z-index: 10;
}

.panel-head h1 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.panel-head .sub {
  margin-top: 4px;
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ---------------- Stepper ---------------- */

.stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 16px;
}

.step-btn {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 50%;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.step-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
}

.step-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

#step-dots {
  display: flex;
  flex-wrap: wrap;
  row-gap: 6px;
  gap: 8px;
  align-items: center;
  justify-content: center;
  flex: 1;
}

/* Producto de un solo paso: sin navegación de pasos */
.stepper.single {
  display: none;
}

.step-info.single {
  justify-content: flex-end;
}

.step-info.single #step-text {
  display: none;
}

.dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.dot:hover {
  background: rgba(255, 255, 255, 0.4);
}

.dot.active {
  background: var(--accent-strong);
  transform: scale(1.3);
}

.step-info {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  margin-top: 10px;
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* El texto del paso empuja los botones a la derecha */
.step-info #step-text {
  margin-right: auto;
}

.guide-btn {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border-radius: 50%;
  border: 1px solid var(--panel-border);
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1;
  padding: 0;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.guide-btn:hover {
  color: var(--text);
  border-color: var(--accent-strong);
}

.hide-btn {
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 0.7rem;
  padding: 4px 10px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.hide-btn:hover {
  color: var(--text);
  border-color: var(--accent-strong);
}

/* ---------------- Panel oculto: solo el modelo ---------------- */

/* El pie queda pegado abajo: con muchos estampados la rejilla se desplaza
   internamente y "Añadir al carrito" sigue siempre a la vista. */
.panel-footer {
  position: sticky;
  bottom: 0;
  z-index: 2;
  margin: 14px -20px 0;
  padding: 12px 20px 16px;
  background: var(--panel-bg);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--panel-border);
}

.footer-row {
  display: flex;
  gap: 8px;
}

.share-btn {
  flex: 0 0 42%;
  padding: 12px 6px;
  border: 1px solid var(--accent-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--accent-strong);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.share-btn:hover {
  background: rgba(200, 155, 106, 0.16);
}

#cart-btn {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

#cart-btn:hover {
  background: var(--accent-strong);
}

#cart-btn:active {
  transform: scale(0.98);
}

/* ---------------- Carrito (simulación) ---------------- */

#cart-modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(8, 10, 14, 0.65);
  backdrop-filter: blur(4px);
  padding: 16px;
}

#cart-modal.open {
  display: flex;
}

.cart-card {
  width: 100%;
  max-width: 420px;
  max-height: 90vh;
  overflow-y: auto;
  background: #15181f;
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 18px;
}

.cart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.cart-head h2 {
  font-size: 1rem;
  font-weight: 600;
}

.cart-dots {
  display: flex;
  gap: 6px;
  margin: 12px 0 2px;
}

.cart-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  transition: background 0.15s ease, transform 0.15s ease;
}

.cart-dot.active {
  background: var(--accent-strong);
  transform: scale(1.25);
}

.cart-step {
  display: none;
}

.cart-step.active {
  display: block;
}

.cart-step-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 10px;
}

.cart-step-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 3px;
}

/* Elección inicial: medidas ahora o más tarde */

.cart-choice {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.cart-choice-btn {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  text-align: left;
  padding: 13px 14px;
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.cart-choice-btn strong {
  font-size: 0.88rem;
  font-weight: 600;
}

.cart-choice-btn span {
  font-size: 0.74rem;
  color: var(--text-dim);
  line-height: 1.35;
}

.cart-choice-btn:hover {
  background: rgba(255, 255, 255, 0.09);
}

.cart-choice-btn:active {
  transform: scale(0.98);
}

.cart-choice-btn.recommended {
  border-color: var(--accent-strong);
  background: rgba(200, 155, 106, 0.14);
}

.cart-choice-btn.recommended:hover {
  background: rgba(200, 155, 106, 0.22);
}

.cart-choice-btn:disabled {
  opacity: 0.45;
  cursor: default;
}

.measure-desc {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.measure-input {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.measure-input input {
  flex: 1;
  min-width: 0;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  padding: 12px;
  outline: none;
  transition: border-color 0.15s ease;
}

.measure-input input:focus {
  border-color: var(--accent-strong);
}

.measure-input span {
  font-size: 0.85rem;
  color: var(--text-dim);
  min-width: 24px;
}

.review-list {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.review-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  font-size: 0.8rem;
}

.review-row strong {
  color: var(--text);
}

.cart-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 10px;
}

.cart-field label {
  font-size: 0.72rem;
  color: var(--text-dim);
}

.cart-field input,
.cart-field select,
.cart-field textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
  padding: 10px;
  outline: none;
  transition: border-color 0.15s ease;
}

.cart-field input:focus,
.cart-field select:focus,
.cart-field textarea:focus {
  border-color: var(--accent-strong);
}

.cart-field textarea {
  resize: vertical;
}

.cart-summary {
  display: grid;
  gap: 6px;
  margin-top: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.35;
}

.cart-summary b {
  color: var(--text);
}

#cart-error {
  min-height: 15px;
  margin-top: 8px;
  font-size: 0.72rem;
  color: var(--danger);
}

.cart-nav {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.cart-btn {
  flex: 1;
  padding: 11px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.cart-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.cart-btn.primary {
  background: var(--accent);
  border-color: var(--accent-strong);
  color: #1a140c;
  font-weight: 600;
}

.cart-btn.primary:hover {
  background: var(--accent-strong);
}

.cart-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.cart-note {
  margin-top: 12px;
  text-align: center;
  font-size: 0.66rem;
  color: var(--text-dim);
}

#cart-success {
  text-align: center;
  padding: 22px 6px 8px;
}

#cart-success[hidden] {
  display: none;
}

.check {
  width: 54px;
  height: 54px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: rgba(129, 199, 132, 0.15);
  border: 2px solid #81c784;
  color: #a5d6a7;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

#cart-success h2 {
  font-size: 1.1rem;
  font-weight: 600;
}

.cart-success-text {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

#cart-success .cart-btn {
  width: 100%;
  margin-top: 16px;
}

#panel.hidden {
  display: none;
}

#show-btn {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  z-index: 12;
  cursor: pointer;
  background: rgba(20, 22, 28, 0.92);
  border: 1px solid var(--accent-strong);
  border-radius: 999px;
  color: var(--accent-strong);
  font-family: inherit;
  font-size: 0.78rem;
  padding: 9px 16px;
  backdrop-filter: blur(14px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

#show-btn:hover {
  background: rgba(200, 155, 106, 0.18);
}

/* ---------------- Grupos (uno visible por paso) ---------------- */

#groups {
  margin-top: 16px;
}

.group {
  display: none;
}

.group.active {
  display: block;
}

.group h2 {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 8px;
}

/* Rejilla de estampados: se ven las primeras filas y el resto se desplaza.
   La altura se limita para que "Añadir al carrito" quede siempre a mano
   aunque la biblioteca tenga 100 estampados. Las miniaturas se cargan
   solo cuando entran en pantalla (lazy load en configurator.js). */

.swatch-count {
  margin-bottom: 8px;
  font-size: 0.7rem;
  color: var(--text-dim);
}

.swatches-empty {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.swatches {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  max-height: 46vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: 2px;
}

.swatch {
  cursor: pointer;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 8px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.72rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.1s ease;
}

.swatch:hover {
  background: rgba(255, 255, 255, 0.08);
}

.swatch:active {
  transform: scale(0.97);
}

.swatch.active {
  border-color: var(--accent-strong);
  background: rgba(200, 155, 106, 0.14);
  box-shadow: 0 0 0 1px var(--accent-strong) inset;
}

.thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 8px;
  overflow: hidden;
  background: #171a21;
  display: flex;
  align-items: center;
  justify-content: center;
}

.thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  /* La miniatura no debe poder descargarse: sin hit-test en la imagen el
     navegador no ofrece "Descargar/Guardar imagen" (clic derecho o pulsación
     larga); el clic sigue llegando al botón .swatch. */
  pointer-events: none;
  -webkit-user-drag: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

/* ---------------- Menú de compartir ---------------- */

.dc-share-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(8, 10, 14, 0.65);
  backdrop-filter: blur(4px);
  padding: 16px;
}

.dc-share-overlay.open {
  display: flex;
}

.dc-share-card {
  width: 100%;
  max-width: 340px;
  background: #15181f;
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 18px;
}

.dc-share-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.dc-share-head h3 {
  font-size: 0.95rem;
  font-weight: 600;
}

.dc-share-close {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 50%;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
}

.dc-share-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.dc-share-action {
  padding: 11px 10px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.15s ease;
}

.dc-share-action:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* ---------------- Guía para quien entra por primera vez ---------------- */

.dc-guide {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  /* Con la guía abierta los gestos tampoco son del navegador */
  touch-action: none;
}

.dc-guide.open {
  display: block;
}

/* En los pasos que hablan del modelo la guía deja pasar los toques: así el
   cliente puede girarlo y tocar piezas mientras se lo explican. */
.dc-guide.pass-through {
  pointer-events: none;
}

.dc-guide.pass-through .dc-guide-card {
  pointer-events: auto;
}

/* Foco sobre la parte de la interfaz de la que habla cada paso */
.dc-guide-hole {
  position: absolute;
  border-radius: 16px;
  box-shadow: 0 0 0 9999px rgba(6, 8, 12, 0.74), 0 0 0 3px rgba(180, 105, 186, 0.85) inset;
  transition: left 0.22s ease, top 0.22s ease, width 0.22s ease, height 0.22s ease;
  pointer-events: none;
}

.dc-guide-card {
  position: absolute;
  width: 320px;
  max-width: calc(100vw - 24px);
  background: #191c23;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.55);
  text-align: center;
}

.dc-guide-icon {
  width: 46px;
  height: 46px;
  margin: 0 auto 10px;
  border-radius: 50%;
  background: rgba(180, 105, 186, 0.16);
  color: #d9a6e0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dc-guide-icon svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.dc-guide-title {
  font-size: 1rem;
  font-weight: 700;
}

.dc-guide-text {
  margin-top: 6px;
  font-size: 0.86rem;
  line-height: 1.45;
  color: var(--text-dim);
}

.dc-guide-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin: 14px 0 10px;
}

.dc-guide-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
}

.dc-guide-dot.active {
  background: var(--accent-strong);
}

.dc-guide-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dc-guide-skip {
  flex: 0 0 auto;
  background: none;
  border: none;
  padding: 6px 4px;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 0.78rem;
  text-decoration: underline;
  cursor: pointer;
}

.dc-guide-skip[hidden] {
  display: none;
}

.dc-guide-next {
  flex: 1;
  padding: 11px;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: #1a140c;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease;
}

.dc-guide-next:hover {
  background: var(--accent-strong);
}

/* ---------------- Estado ---------------- */

#status {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(129, 199, 132, 0.12);
  border: 1px solid rgba(129, 199, 132, 0.35);
  font-size: 0.75rem;
  color: #a5d6a7;
}

#status.error {
  background: rgba(224, 108, 108, 0.12);
  border-color: rgba(224, 108, 108, 0.4);
  color: var(--danger);
}

/* ---------------- Carga ---------------- */

#loading {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: var(--bg);
}

#loading[hidden] {
  display: none;
}

.spinner {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.12);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}

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

#progress-text {
  font-size: 0.8rem;
  color: var(--text-dim);
}

#progress-bar {
  width: 220px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

#progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.2s ease;
}

/* ---------------- Móvil ---------------- */

@media (max-width: 820px) {
  #panel {
    top: auto;
    right: 10px;
    left: 10px;
    bottom: 10px;
    width: auto;
    /* La rejilla está limitada a 2 filas, así que la altura real del panel la
       marca el contenido (~275 px). El tope evita que tape el modelo en
       pantallas muy pequeñas (donde sí desplaza internamente). */
    max-height: 56%;
    padding: 10px 10px 0;
    border-radius: 14px;
  }
  .panel-head {
    display: none;
  }
  /* Móvil: sin navegación de pasos. Se cambia de paso tocando la pieza en el
     modelo (el título del grupo ya dice en qué paso estás). */
  .stepper {
    display: none;
  }
  /* "Ocultar interfaz" sube a la fila del título del grupo: no gasta fila propia
     y deja libre la zona de estampados. */
  .step-info {
    position: absolute;
    top: 8px;
    right: 10px;
    margin: 0;
    z-index: 3;
  }
  .step-info #step-text {
    display: none;
  }
  .hide-btn {
    background: rgba(20, 22, 28, 0.85);
  }
  #groups {
    margin-top: 0;
  }
  /* La fila del título reserva la altura de los controles flotantes («?» y
     «Ocultar interfaz», 26 px) para que no pisen la primera fila de estampados. */
  .group h2 {
    display: flex;
    align-items: center;
    min-height: 30px;
    padding-right: 150px;
    margin-bottom: 6px;
  }
  .swatch {
    padding: 5px;
  }
  /* Solo 2 filas de estampados a la vista (el resto se desplaza) */
  .swatches {
    max-height: 176px;
  }
  .swatch-count {
    display: none;
  }
  .thumb {
    aspect-ratio: auto;
    height: 52px;
  }
  .panel-footer {
    margin: 6px -10px 0;
    padding: 6px 10px 10px;
  }
  #cart-btn {
    padding: 11px;
    font-size: 0.92rem;
  }
  #show-btn {
    bottom: 12px;
    padding: 8px 14px;
  }
}