:root {
  color-scheme: dark;
  --font-sans: "Inter", "Plus Jakarta Sans", "Roboto", system-ui, sans-serif;

  --color-bg: #0c0c0c;
  --color-bg-elevated: #121212;
  --color-bg-panel: #161616;
  --color-bg-input: #1a1a1a;

  --color-text: #f5f5f5;
  --color-text-muted: #9ca3af;
  --color-text-subtle: #6b7280;

  --color-gold: #c5a880;
  --color-gold-dark: #b89765;
  --color-gold-light: #d4bc9a;
  --color-gold-muted: rgba(197, 168, 128, 0.12);
  --color-gold-border: rgba(197, 168, 128, 0.45);

  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.14);

  --radius-sm: 6px;
  --radius-md: 8px;

  --shadow-panel: 0 24px 48px rgba(0, 0, 0, 0.45);
  --transition-fast: 160ms ease;
  --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);

  font-family: var(--font-sans);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Layout ── */

.page-main {
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: 1rem;
}

@media (min-width: 640px) {
  .container {
    padding-inline: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: 2rem;
  }
}

/* ── Site header ── */

.site-header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 15px;
  padding-bottom: 5px;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
}

.header-logo-container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-link {
  display: block;
  line-height: 0;
}

.main-logo {
  height: auto;
  max-height: 110px;
  max-width: 90%;
  object-fit: contain;
  display: block;
  margin: 0 auto;
  transition: transform 0.2s ease;
}

.logo-link:hover .main-logo {
  transform: scale(1.03);
}

/* ── Hero ── */

.hero {
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(197, 168, 128, 0.08), transparent),
    var(--color-bg-elevated);
}

.hero-inner {
  display: grid;
  gap: 2.5rem;
  padding-top: 1rem;
  padding-bottom: 2.5rem;
}

@media (min-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 3rem;
    padding-block: 4rem;
  }
}

.hero-title {
  margin: 0;
  margin-top: 10px !important;
  max-width: 36rem;
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  margin: 0;
  max-width: 34rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

@media (min-width: 640px) {
  .hero-subtitle {
    font-size: 1.0625rem;
  }
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
  }
}

.text-gold {
  color: var(--color-gold-light);
}

.demo-slider-container {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-panel);
  box-shadow: var(--shadow-panel);
}

.demo-slider-wrapper {
  position: relative;
  overflow: hidden;
  user-select: none;
  touch-action: none;
  cursor: ew-resize;
  aspect-ratio: 4 / 3;
  min-height: 280px;
}

@media (min-width: 640px) {
  .demo-slider-wrapper {
    min-height: 420px;
    aspect-ratio: auto;
    height: 420px;
  }
}

.demo-img-after,
.demo-img-before {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.demo-before-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  z-index: 2;
}

.demo-before-wrap .demo-img-before {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  max-width: none;
  object-fit: cover;
}

.demo-slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 10;
  width: 0;
  transform: translateX(-50%);
  cursor: ew-resize;
}

.demo-handle-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  margin-left: -1.5px;
  background: var(--color-gold);
  box-shadow: 0 0 12px rgba(197, 168, 128, 0.5);
}

.demo-handle-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 2px solid var(--color-gold);
  background: rgba(12, 12, 12, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  color: var(--color-gold-light);
  font-size: 0.875rem;
  line-height: 1;
  pointer-events: none;
}

.demo-slider-caption {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.35);
}

.demo-slider-caption h3 {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.35;
}

.demo-slider-caption p {
  margin: 0.35rem 0 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ── Panels ── */

.glass-panel {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: rgba(22, 22, 22, 0.85);
  backdrop-filter: blur(12px);
}

.section-visualizer {
  padding-block: 2.5rem;
  overflow: visible;
}

@media (min-width: 1024px) {
  .section-visualizer {
    padding-block: 4rem;
  }
}

.visualizer-grid {
  display: grid;
  gap: 2rem;
  overflow: visible;
}

@media (min-width: 1024px) {
  .visualizer-grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 2rem;
  }
}

.panel-form {
  position: relative;
  z-index: 20;
  padding: 1.75rem 1.5rem;
  overflow: visible;
}

@media (min-width: 640px) {
  .panel-form {
    padding: 2rem 2.25rem;
  }
}

.panel-heading {
  margin: 0 0 0.5rem;
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.panel-desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ── Form ── */

.visualizer-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
  overflow: visible;
}

.form-field {
  position: relative;
  z-index: 1;
  overflow: visible;
}

.form-field:has(.custom-variant-dropdown.is-open) {
  z-index: 30;
}

.form-field label,
.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-hint {
  margin: 0.5rem 0 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-text-subtle);
}

.form-input,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-input);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.875rem;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(197, 168, 128, 0.15);
}

.native-variant-select {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  opacity: 0;
  pointer-events: none;
}

.custom-variant-dropdown {
  position: relative;
  z-index: 1;
  width: 100%;
  overflow: visible;
}

.custom-variant-dropdown.is-open {
  z-index: 9999;
}

.dropdown-selected {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  min-height: 3.25rem;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gold-border);
  background: var(--color-bg-input);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.875rem;
  text-align: left;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast);
}

.dropdown-selected:hover,
.custom-variant-dropdown.is-open .dropdown-selected {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(197, 168, 128, 0.15);
}

.dropdown-selected-content {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}

.dropdown-placeholder {
  color: var(--color-text-muted);
}

.dropdown-arrow {
  flex-shrink: 0;
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid var(--color-gold-light);
  border-bottom: 2px solid var(--color-gold-light);
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
  margin-top: -0.2rem;
}

.custom-variant-dropdown.is-open .dropdown-arrow {
  transform: rotate(-135deg);
  margin-top: 0.2rem;
}

.dropdown-options {
  display: none;
  position: absolute;
  top: calc(100% + 0.35rem);
  left: 0;
  width: 100%;
  max-height: 250px;
  overflow-y: auto !important;
  -webkit-overflow-scrolling: touch;
  z-index: 9999 !important;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gold-border);
  background: #141414;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55);
}

.custom-variant-dropdown.is-open .dropdown-options {
  display: block;
}

.option-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 10px;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: transparent;
  color: var(--color-text);
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease;
}

.option-item:last-child {
  border-bottom: none;
}

.option-item:hover,
.option-item:focus-visible {
  background: rgba(197, 168, 128, 0.1);
  outline: none;
}

.option-item.is-active {
  background: rgba(197, 168, 128, 0.16);
}

.option-item-empty {
  cursor: default;
  pointer-events: none;
}

.option-thumb {
  width: 45px;
  height: 45px;
  flex-shrink: 0;
  border-radius: 4px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #0a0a0a;
}

.option-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.option-brand {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.option-color {
  font-size: 0.75rem;
  line-height: 1.35;
  color: var(--color-gold-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.upload-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.btn-upload {
  width: 100%;
  min-height: 3rem;
  padding: 0.7rem 0.85rem;
  cursor: pointer;
  user-select: none;
}

.btn-upload svg {
  width: 1.05rem;
  height: 1.05rem;
  flex-shrink: 0;
}

.btn-upload-camera {
  background: linear-gradient(135deg, var(--color-gold-dark), var(--color-gold));
  color: #0c0c0c;
  border-color: rgba(197, 168, 128, 0.35);
  box-shadow: 0 4px 14px rgba(197, 168, 128, 0.18);
}

.btn-upload-camera:hover {
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
}

.btn-upload-gallery {
  background: transparent;
  border-color: var(--color-gold-border);
  color: var(--color-gold-light);
}

.btn-upload-gallery:hover {
  background: var(--color-gold-muted);
  border-color: var(--color-gold);
  color: var(--color-gold-light);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Buttons ── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition:
    background var(--transition-smooth),
    border-color var(--transition-smooth),
    color var(--transition-smooth),
    transform var(--transition-fast),
    box-shadow var(--transition-smooth);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--color-gold-dark), var(--color-gold));
  color: #0c0c0c;
  border-color: rgba(197, 168, 128, 0.35);
  box-shadow: 0 4px 16px rgba(197, 168, 128, 0.2);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
  box-shadow: 0 6px 24px rgba(197, 168, 128, 0.28);
}

.btn-primary:disabled {
  cursor: not-allowed;
  background: #2a2a2a;
  color: var(--color-text-subtle);
  border-color: var(--color-border);
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover {
  border-color: var(--color-gold-border);
  color: var(--color-gold-light);
}

.btn-whatsapp {
  width: 100%;
  background: rgba(37, 211, 102, 0.08);
  border-color: rgba(37, 211, 102, 0.35);
  color: #86efac;
}

.btn-whatsapp:hover {
  background: rgba(37, 211, 102, 0.16);
  border-color: rgba(37, 211, 102, 0.55);
  color: #bbf7d0;
}

.btn-whatsapp svg {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
}

/* ── Preview panel ── */

.preview-column {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.panel-preview {
  padding: 1rem;
}

@media (min-width: 640px) {
  .panel-preview {
    padding: 1.5rem;
  }
}

.preview-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.status-badge {
  flex-shrink: 0;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.status-badge.is-ready {
  border-color: var(--color-gold-border);
  color: var(--color-gold-light);
  background: var(--color-gold-muted);
}

.status-badge.is-error {
  border-color: rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}

/* ── Comparison slider ── */

.comparison-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: #000;
}

.comparison-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 280px;
  padding: 2rem;
  text-align: center;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    #0a0a0a;
  background-size: 24px 24px;
}

@media (min-width: 640px) {
  .comparison-placeholder {
    min-height: 420px;
  }
}

.comparison-placeholder-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  font-size: 1.25rem;
}

.comparison-placeholder p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.comparison-slider {
  position: relative;
  user-select: none;
  touch-action: none;
  cursor: col-resize;
  aspect-ratio: 4 / 3;
  min-height: 280px;
}

@media (min-width: 640px) {
  .comparison-slider {
    min-height: 420px;
    aspect-ratio: auto;
    height: 420px;
  }
}

.comparison-slider.is-single .comparison-handle,
.comparison-slider.is-single .comparison-badge-after {
  display: none;
}

.comparison-slider.is-single .comparison-before-wrap {
  width: 100% !important;
}

.comparison-after,
.comparison-before {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.preview-image {
  pointer-events: auto;
  cursor: zoom-in;
}

.comparison-before-wrap {
  position: absolute;
  inset: 0;
  width: 50%;
  overflow: hidden;
  z-index: 2;
}

.comparison-before-wrap .comparison-before {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  max-width: none;
  object-fit: cover;
}

.comparison-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 4;
  width: 3px;
  margin-left: -1.5px;
  background: var(--color-gold);
  box-shadow: 0 0 12px rgba(197, 168, 128, 0.5);
  cursor: col-resize;
}

.comparison-handle-grip {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 2px solid var(--color-gold);
  background: rgba(12, 12, 12, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
}

.comparison-handle-grip::before,
.comparison-handle-grip::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.comparison-handle-grip::before {
  margin-right: 2px;
  border-right: 6px solid var(--color-gold);
}

.comparison-handle-grip::after {
  margin-left: 2px;
  border-left: 6px solid var(--color-gold);
}

.comparison-badge {
  position: absolute;
  top: 0.75rem;
  z-index: 5;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  pointer-events: none;
}

.comparison-badge-before {
  left: 0.75rem;
}

.comparison-badge-after {
  right: 0.75rem;
  border-color: var(--color-gold-border);
  color: var(--color-gold-light);
}

.comparison-clickable {
  cursor: zoom-in;
}

.comparison-clickable::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

.comparison-before-wrap.comparison-clickable {
  cursor: zoom-in;
}

.comparison-after.comparison-clickable {
  cursor: zoom-in;
}

.message-box {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.hidden {
  display: none !important;
}

/* ── Catalog ── */

.panel-catalog {
  padding: 1.25rem;
}

.catalog-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.catalog-brand-group {
  min-width: 0;
}

.catalog-brand-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}

.catalog-brand-title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.catalog-brand-meta {
  flex-shrink: 0;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
}

.catalog-brand-scroll {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.65rem;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  padding-bottom: 0.15rem;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.catalog-brand-scroll::-webkit-scrollbar {
  display: none;
}

.catalog-card {
  flex: 0 0 auto;
  width: 7.25rem;
  padding: 0.45rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.25);
  text-align: left;
  white-space: normal;
  cursor: pointer;
  scroll-snap-align: start;
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-smooth);
}

.catalog-card:hover {
  transform: translateY(-1px);
  border-color: var(--color-gold-border);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.catalog-card.is-active {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 1px rgba(197, 168, 128, 0.35);
}

.catalog-card img {
  width: 100%;
  height: 5.5rem;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.catalog-card-color {
  margin: 0.45rem 0 0.15rem;
  padding-inline: 0.15rem;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.35;
  color: var(--color-gold-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.catalog-empty {
  padding: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.25);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ── Loading overlay ── */

.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(6px);
}

.loading-card {
  width: 100%;
  max-width: 28rem;
  padding: 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-panel);
  text-align: center;
  box-shadow: var(--shadow-panel);
}

.ai-loading-spinner {
  width: 52px;
  height: 52px;
  margin-inline: auto;
  border-radius: 999px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--color-gold);
  animation: ai-loading-spin 0.9s linear infinite;
}

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

.loading-title {
  margin: 1.25rem 0 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gold-light);
}

.loading-status-text {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  transition:
    opacity 300ms ease,
    transform 300ms ease;
}

.loading-status-text.is-fading {
  opacity: 0;
  transform: translateY(4px);
}

.loading-progress-track {
  margin-top: 0.75rem;
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: #2a2a2a;
}

.loading-progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-gold-dark), var(--color-gold));
  transition: width 1s ease-out;
}

/* ── Lightbox ── */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(4px);
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 2;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(22, 22, 22, 0.9);
  color: var(--color-text);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast),
    background var(--transition-fast);
}

.lightbox-close:hover {
  border-color: var(--color-gold-border);
  color: var(--color-gold-light);
  background: rgba(30, 30, 30, 0.95);
}

.lightbox-image {
  max-width: min(96vw, 1400px);
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
}

.lightbox-caption {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.75);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-gold-light);
}

/* ── Tile Pattern Builder (admin) ── */

.tile-pattern-workspace {
  overflow: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    rgba(10, 10, 10, 0.85);
  background-size: 20px 20px;
  min-height: 320px;
  max-height: 520px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.tile-pattern-canvas {
  position: relative;
  margin: 0 auto;
  padding: 0;
}

.tile-pattern-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  pointer-events: none;
}

.tile-pattern-empty strong {
  color: var(--color-gold-light);
  font-weight: 600;
}

.tile-pattern-canvas.has-tiles .tile-pattern-empty {
  display: none;
}

.tile-box {
  position: absolute;
  width: var(--tile-px, 72px);
  height: var(--tile-px, 72px);
  border-radius: var(--radius-sm);
  border: 2px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(145deg, #222, #141414);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 10px 24px rgba(0, 0, 0, 0.45);
  transition:
    border-color 140ms ease,
    box-shadow 140ms ease;
  user-select: none;
  touch-action: none;
}

.tile-box.is-dragging {
  z-index: 20;
  cursor: grabbing;
  transition: none;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 16px 32px rgba(0, 0, 0, 0.5);
}

.tile-box.is-selected {
  border-color: var(--color-gold);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 0 0 1px rgba(197, 168, 128, 0.35),
    0 12px 28px rgba(0, 0, 0, 0.35);
  z-index: 2;
}

.tile-box-surface {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: inherit;
  overflow: hidden;
  cursor: grab;
}

.tile-box.is-dragging .tile-box-surface {
  cursor: grabbing;
}

.tile-box-arrow {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(245, 245, 245, 0.92);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.65);
  transform: rotate(var(--tile-rotation, 0deg));
  transition: transform 160ms ease;
}

.tile-box-controls {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.45rem);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms ease;
  z-index: 5;
}

.tile-box:hover .tile-box-controls,
.tile-box.is-selected .tile-box-controls {
  opacity: 1;
  pointer-events: auto;
}

.tile-box-nav {
  display: grid;
  grid-template-columns: repeat(3, 1.65rem);
  grid-template-rows: repeat(3, 1.65rem);
  gap: 0.2rem;
}

.tile-box-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: rgba(22, 22, 22, 0.95);
  color: var(--color-text);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  transition:
    border-color 120ms ease,
    background-color 120ms ease,
    color 120ms ease;
}

.tile-box-btn:hover {
  border-color: var(--color-gold-border);
  background: var(--color-gold-muted);
  color: var(--color-gold-light);
}

.tile-box-btn.is-danger:hover {
  border-color: rgba(239, 68, 68, 0.55);
  background: rgba(190, 18, 60, 0.25);
}

.tile-box-btn.is-rotate {
  width: auto;
  min-width: 2.2rem;
  padding: 0 0.35rem;
}

.tile-box-nav .tile-box-btn[data-move="up"] {
  grid-column: 2;
  grid-row: 1;
}

.tile-box-nav .tile-box-btn[data-move="left"] {
  grid-column: 1;
  grid-row: 2;
}

.tile-box-nav .tile-box-btn[data-move="right"] {
  grid-column: 3;
  grid-row: 2;
}

.tile-box-nav .tile-box-btn[data-move="down"] {
  grid-column: 2;
  grid-row: 3;
}

.tile-pattern-card {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.25);
  padding: 0.9rem 1rem;
}

.tile-pattern-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.tile-pattern-card-meta {
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: var(--color-text-subtle);
}

/* ── Public tile pattern live preview ── */

.tile-pattern-preview {
  margin-top: 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: #050505;
  padding: 0.85rem;
}

.tile-pattern-preview-label {
  margin-bottom: 0.55rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gold-light);
}

.tile-pattern-preview-grid {
  position: relative;
  display: inline-block;
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    #000;
  background-size: 20px 20px;
}

.tile-preview-cell {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(145deg, #1a1a1a, #0d0d0d);
}

.tile-preview-arrow {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-gold-light);
  transform: rotate(var(--rotation, 0deg));
}

.tile-pattern-preview-empty {
  font-size: 0.75rem;
  color: var(--color-text-subtle);
  text-align: center;
}

/* ── Admin Dashboard (compact Premium Dark/Gold) ── */
.admin-page {
  min-height: 100vh;
  background: #121212;
  color: #f5f5f5;
}

.admin-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 10px 12px 20px;
}

.admin-login {
  min-height: calc(100vh - 24px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-login-card {
  width: 100%;
  max-width: 360px;
}

.admin-login-head {
  text-align: center;
  margin-bottom: 12px;
}

.admin-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: rgba(26, 26, 26, 0.92);
  backdrop-filter: blur(10px);
}

.admin-topbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.admin-topbar-brand strong {
  font-size: 13px;
  font-weight: 650;
  color: #ffffff;
}

.admin-topbar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.admin-tabs {
  display: inline-flex;
  gap: 4px;
  padding: 3px;
  border-radius: 6px;
  background: #1a1a1a;
  border: 1px solid var(--color-border);
}

.admin-tab {
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: #8a8a8a;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  cursor: pointer;
}

.admin-tab:hover {
  color: var(--color-gold-light);
}

.admin-tab.is-active {
  background: var(--color-gold-muted);
  color: var(--color-gold-light);
}

.admin-panel {
  display: none;
}

.admin-panel.is-active {
  display: block;
}

.admin-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.admin-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--color-gold-border);
  background: var(--color-gold-muted);
  color: var(--color-gold-light);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.admin-badge-muted {
  border-color: var(--color-border);
  background: rgba(255, 255, 255, 0.04);
  color: #b3b3b3;
}

.admin-title {
  margin: 6px 0 0;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.25;
}

.admin-subtitle {
  margin: 4px 0 0;
  max-width: 36rem;
  font-size: 12px;
  line-height: 1.4;
  color: #b3b3b3;
}

.admin-status {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #1a1a1a;
  color: #b3b3b3;
  font-size: 11px;
  font-weight: 500;
}

.admin-notice {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  align-items: baseline;
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid var(--color-gold-border);
  background: var(--color-gold-muted);
  font-size: 13px;
  color: var(--color-gold-light);
}

.admin-notice-compact {
  margin-bottom: 8px;
  padding: 6px 10px;
  font-size: 11px;
  line-height: 1.35;
}

.admin-notice strong {
  color: #ffffff;
  font-weight: 600;
}

.admin-grid {
  display: grid;
  gap: 10px;
}

@media (min-width: 1024px) {
  .admin-grid {
    grid-template-columns: minmax(280px, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }
}

.admin-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.admin-card {
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: #242424;
  padding: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

.admin-collapse {
  padding: 0;
  overflow: hidden;
}

.admin-collapse-summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 650;
  color: #ffffff;
  user-select: none;
}

.admin-collapse-summary::-webkit-details-marker {
  display: none;
}

.admin-collapse-summary::after {
  content: "+";
  color: var(--color-gold-light);
  font-weight: 700;
}

.admin-collapse[open] > .admin-collapse-summary::after {
  content: "−";
}

.admin-collapse .admin-form {
  padding: 0 12px 12px;
}

.admin-card-stretch {
  min-height: 100%;
}

.admin-card-head {
  margin-bottom: 10px;
}

.admin-card-head h2 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 650;
  color: #ffffff;
}

.admin-card-head p {
  margin: 3px 0 0;
  font-size: 11px;
  line-height: 1.35;
  color: #b3b3b3;
}

.admin-card-head-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.admin-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.admin-field label {
  font-size: 11px;
  font-weight: 550;
  color: #d4d4d4;
}

.admin-field-row {
  display: grid;
  gap: 8px;
}

@media (min-width: 640px) {
  .admin-field-row {
    grid-template-columns: 1fr 1fr;
  }
}

.admin-input {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 5px;
  background: #1a1a1a;
  color: #f5f5f5;
  font: inherit;
  font-size: 13px;
  line-height: 1.3;
  padding: 8px 10px;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.admin-input::placeholder {
  color: #6b7280;
}

.admin-input:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 1px rgba(197, 168, 128, 0.25);
}

textarea.admin-input {
  resize: vertical;
  min-height: 56px;
}

select.admin-input {
  cursor: pointer;
}

.admin-file {
  padding: 6px;
  font-size: 11px;
}

.admin-file::file-selector-button {
  margin-right: 8px;
  border: 0;
  border-radius: 4px;
  background: var(--color-gold);
  color: #121212;
  font-weight: 600;
  font-size: 11px;
  padding: 5px 8px;
  cursor: pointer;
}

.admin-hint {
  margin: 0;
  font-size: 11px;
  line-height: 1.35;
  color: #8a8a8a;
}

.admin-btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.admin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 5px;
  border: 1px solid transparent;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  padding: 8px 11px;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.admin-btn-sm {
  font-size: 11px;
  padding: 5px 8px;
}

.admin-btn-icon {
  width: 28px;
  height: 28px;
  padding: 0;
  font-size: 13px;
  line-height: 1;
}

.admin-btn-block {
  width: 100%;
}

.admin-btn-primary {
  background: linear-gradient(135deg, var(--color-gold-dark), var(--color-gold));
  color: #121212;
}

.admin-btn-primary:hover {
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
}

.admin-btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: #d4d4d4;
}

.admin-btn-ghost:hover {
  border-color: var(--color-gold-border);
  color: var(--color-gold-light);
}

.admin-btn-danger {
  background: transparent;
  border-color: rgba(244, 63, 94, 0.35);
  color: #fda4af;
}

.admin-btn-danger:hover {
  border-color: rgba(244, 63, 94, 0.55);
  background: rgba(244, 63, 94, 0.08);
}

.admin-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
}

.admin-message {
  margin-top: 10px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: #1a1a1a;
  padding: 8px 10px;
  font-size: 12px;
  color: #b3b3b3;
}

.admin-message-inline {
  margin-top: 0;
  margin-bottom: 8px;
}

.admin-message.is-error {
  border-color: rgba(244, 63, 94, 0.35);
  background: rgba(244, 63, 94, 0.08);
  color: #fecdd3;
}

.admin-table-wrap {
  overflow: auto;
  max-height: min(70vh, 720px);
  border-radius: 6px;
  border: 1px solid var(--color-border);
}

.admin-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  text-align: left;
  font-size: 12px;
}

.admin-table thead {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #1a1a1a;
}

.admin-table th {
  padding: 6px 8px;
  border-bottom: 1px solid var(--color-border);
  color: #8a8a8a;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.admin-table td {
  padding: 6px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  vertical-align: middle;
  color: #e5e5e5;
}

.admin-table tbody tr:last-child td {
  border-bottom: 0;
}

.admin-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.admin-table-empty {
  text-align: center;
  color: #8a8a8a !important;
  padding: 16px 8px !important;
}

.admin-product-name {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  color: #ffffff;
}

.admin-product-desc {
  margin: 2px 0 0;
  font-size: 10px;
  line-height: 1.35;
  color: #8a8a8a;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.admin-product-meta {
  margin: 3px 0 0;
  font-size: 10px;
  color: var(--color-gold-light);
}

.admin-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 999px;
  border: 1px solid var(--color-gold-border);
  background: var(--color-gold-muted);
  color: var(--color-gold-light);
  font-size: 10px;
  font-weight: 600;
  white-space: nowrap;
}

.admin-variant-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.admin-variant-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 4px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: #1a1a1a;
}

.admin-variant-main {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.admin-variant-thumb {
  width: 28px;
  height: 28px;
  border-radius: 3px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}

.admin-variant-text {
  min-width: 0;
}

.admin-variant-text p {
  margin: 0;
  font-size: 11px;
  font-weight: 550;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.admin-variant-text span {
  display: block;
  margin-top: 1px;
  font-size: 10px;
  color: #8a8a8a;
}

.admin-muted {
  color: #8a8a8a;
  font-size: 11px;
}

.admin-tile-section {
  margin-top: 0;
}

.admin-tile-toolbar {
  display: grid;
  gap: 8px;
  margin-bottom: 10px;
}

@media (min-width: 900px) {
  .admin-tile-toolbar {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    align-items: start;
  }
}

.admin-saved-patterns {
  margin-top: 12px;
}

.admin-section-label {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  color: #e5e5e5;
}

.admin-pattern-grid {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}

@media (min-width: 640px) {
  .admin-pattern-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .admin-pattern-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.admin-page .tile-pattern-card {
  padding: 8px 10px;
  background: #1a1a1a;
}

.admin-page .tile-pattern-workspace {
  margin-top: 0;
}