/* ── Reset & base ──────────────────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --yellow: #FFCD00;
  --yellow-hover: #FFD633;
  --dark: #1D1D1B;
  --gray-bg: #F5F5F3;
  --gray-light: #E8E6E1;
  --gray-text: #5A5A5A;
  --card-bg: #FFFFFF;
  --viewer-bg: linear-gradient(180deg, #FAFAF8 0%, #EDECE8 100%);
  --card-hover: #FAFAF8;
  --card-active-bg: #FFFDF5;
  --card-border-hover: #D5D3CE;
  --radius: 14px;
  --radius-sm: 10px;
  --icon-outline: #E1E1E1;
  --icon-box: #1D1D1D;
  --cta-text: #1D1D1B;
  --focus-ring: 0 0 0 3px rgba(255, 205, 0, 0.6);
}

[data-theme="dark"] {
  --dark: #F0F0F0;
  --gray-bg: #121212;
  --gray-light: #2A2A2A;
  --gray-text: #9A9A9A;
  --card-bg: #1E1E1E;
  --viewer-bg: linear-gradient(180deg, #1A1A1A 0%, #141414 100%);
  --card-hover: #252525;
  --card-active-bg: #2A2600;
  --card-border-hover: #3A3A3A;
  --icon-outline: #3A3A3A;
  --icon-box: #E0E0E0;
  --cta-text: #1D1D1B;
}

html {
  font-family: "Archivo", system-ui, -apple-system, sans-serif;
  color: var(--dark);
  background: var(--gray-bg);
  -webkit-tap-highlight-color: transparent;
}

body {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  height: 100vh;
  overflow: hidden;
}

/* ── Global focus ──────────────────────────────────────────────────── */
:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: 4px;
}

/* ── Header ────────────────────────────────────────────────────────── */
.header {
  position: relative;
  text-align: center;
  padding: 16px 16px 8px;
}

.lang {
  position: absolute;
  top: 14px;
  right: 12px;
  z-index: 20;
}

.lang__toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 8px;
  border: 1.5px solid var(--gray-light);
  border-radius: 6px;
  background: var(--card-bg);
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  transition: border-color 0.2s;
}
.lang__toggle:hover {
  border-color: var(--card-border-hover);
}
.lang__toggle:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: 6px;
}

.lang__menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 130px;
  padding: 4px 0;
  margin: 0;
  list-style: none;
  background: var(--card-bg);
  border: 1.5px solid var(--gray-light);
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.lang--open .lang__menu {
  display: block;
}

.lang__menu li {
  padding: 12px 14px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--dark);
  cursor: pointer;
  transition: background 0.15s;
}
.lang__menu li:hover {
  background: var(--gray-bg);
}
.lang__menu-item--active {
  font-weight: 700;
  color: var(--dark);
}

/* ── Theme toggle ──────────────────────────────────────────────────── */
.theme-toggle, .info-btn {
  position: absolute;
  top: 14px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--gray-light);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--dark);
  cursor: pointer;
  transition: border-color 0.2s;
}
.theme-toggle { left: 12px; }
.info-btn { left: 50px; }

.theme-toggle:hover, .info-btn:hover {
  border-color: var(--card-border-hover);
}
.theme-toggle:focus-visible, .info-btn:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: 8px;
}

/* Show sun in dark mode, moon in light mode */
.theme-toggle__moon { display: block; }
.theme-toggle__sun  { display: none; }
[data-theme="dark"] .theme-toggle__moon { display: none; }
[data-theme="dark"] .theme-toggle__sun  { display: block; }

/* Dark mode: invert logo */
[data-theme="dark"] .header__logo { color: #F0F0F0; }

/* Dark mode: AR dark button becomes light */
[data-theme="dark"] .cta--dark {
  background: #F0F0F0;
  color: #1D1D1B;
}
[data-theme="dark"] .cta--dark:hover {
  background: #DDD;
}

.header__title {
  display: flex;
  justify-content: center;
}

.header__logo {
  height: 22px;
  width: auto;
}

.header__subtitle {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--gray-text);
  margin-top: 2px;
}

/* ── Credit overlay ────────────────────────────────────────────────── */
.credit-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.credit-overlay--visible {
  opacity: 1;
  pointer-events: auto;
}
.credit-overlay__card {
  background: var(--card-bg);
  border-radius: 18px;
  padding: 28px 24px;
  margin: 24px;
  max-width: 340px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  font-family: "Archivo", system-ui, -apple-system, sans-serif;
}

.credit-overlay__logo {
  height: 20px;
  width: auto;
  color: var(--dark);
}

.credit-overlay__desc {
  font-size: 0.78rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--gray-text);
}

.credit-overlay__divider {
  width: 100%;
  border: none;
  height: 1px;
  background: var(--gray-light);
}

.credit-overlay__qr-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray-text);
}

.credit-overlay__qr {
  width: 160px;
  height: 160px;
  border-radius: 8px;
}

.credit-overlay__url-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1.5px solid var(--gray-light);
  border-radius: 8px;
  background: var(--gray-bg);
}

.credit-overlay__url {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--gray-text);
  user-select: all;
}

.credit-overlay__copy {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: none;
  color: var(--gray-text);
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.2s;
}
.credit-overlay__copy:hover {
  color: var(--dark);
}

.credit-overlay__check-icon {
  color: #22c55e;
}

.credit-overlay__author {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--dark);
  opacity: 0.5;
}

.credit-overlay__close {
  width: 100%;
  padding: 12px;
  border: 1.5px solid var(--gray-light);
  border-radius: var(--radius-sm);
  background: none;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  transition: background 0.2s;
}
.credit-overlay__close:hover {
  background: var(--gray-bg);
}

/* ── Viewer AR button (on the 3D preview) ──────────────────────────── */
.viewer-ar-btn {
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: var(--card-bg);
  color: var(--dark);
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.viewer-ar-btn:hover {
  background: var(--card-hover);
}
.viewer-ar-btn:active {
  transform: scale(0.93);
}
.viewer-ar-btn:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: 50%;
}

/* ── 3D Viewer ─────────────────────────────────────────────────────── */
.viewer {
  flex: 1 1 0;
  min-height: 200px;
  padding: 0 12px 8px;
}

model-viewer {
  width: 100%;
  height: 100%;
  border-radius: var(--radius);
  background: var(--viewer-bg);
  --poster-color: transparent;
  transition: opacity 0.2s ease;
}

model-viewer.viewer--switching {
  opacity: 0.3;
}

/* Loading skeleton (poster slot) */
.poster-skeleton {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--viewer-bg);
}

.poster-skeleton__shimmer {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.5) 50%,
    transparent 100%
  );
  animation: shimmer 1.8s ease-in-out infinite;
}

@keyframes shimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.poster-skeleton__text {
  position: relative;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray-text);
}

/* ── Selektor gabarytów ────────────────────────────────────────────── */
.selector {
  padding: 12px 12px 0;
}

.selector__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 12px 6px;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  cursor: pointer;
  font-family: inherit;
  text-align: center;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.15s, background 0.25s;
}

.card:hover {
  background: var(--card-hover);
  border-color: var(--card-border-hover);
}

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

.card:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

.card--active {
  border-color: var(--yellow);
  box-shadow: 0 0 0 2px var(--yellow), 0 2px 12px rgba(255, 205, 0, 0.25);
  background: var(--card-active-bg);
}
.card--active:hover {
  background: var(--card-active-bg);
}

.card__icon {
  width: 40px;
  height: 40px;
  margin-bottom: 2px;
}

.card__name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--dark);
}

.card__dims {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--gray-text);
  letter-spacing: -0.01em;
}

.card__desc {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--dark);
}

.card__weight {
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--gray-text);
  margin-top: 2px;
}

/* ── Porównaj link ─────────────────────────────────────────────────── */
.compare-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  background: none;
  color: var(--gray-text);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s;
}
.compare-toggle:hover {
  color: var(--dark);
}
.compare-toggle:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: 8px;
}

/* ── Bottom sheet backdrop ─────────────────────────────────────────── */
.sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s;
  z-index: 90;
}
.sheet-backdrop--visible {
  opacity: 1;
  pointer-events: auto;
}

/* ── Bottom sheet ──────────────────────────────────────────────────── */
.sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--card-bg);
  border-radius: 20px 20px 0 0;
  padding: 0 16px 24px;
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.32, 0.72, 0, 1);
  z-index: 100;
  max-height: 85dvh;
  overflow-y: auto;
}
.sheet--open {
  transform: translateY(0);
}

.sheet__handle {
  display: flex;
  justify-content: center;
  padding: 12px 0 4px;
  cursor: pointer;
}
.sheet__handle span {
  width: 36px;
  height: 4px;
  border-radius: 2px;
  background: var(--gray-light);
}

.sheet__title {
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
}

/* ── Compare items ─────────────────────────────────────────────────── */
.compare {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  align-items: end;
}

.compare__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 4px;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  transition: border-color 0.25s, background 0.25s;
}
.compare__item--active {
  border-color: var(--yellow);
  background: rgba(255, 205, 0, 0.08);
}

.compare__box-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  height: 150px;
}
.compare__box {
  width: 100%;
  max-width: 100px;
  height: auto;
}

.compare__name {
  font-size: 0.82rem;
  font-weight: 700;
  margin-top: 6px;
}
.compare__dims {
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--gray-text);
}
.compare__desc {
  font-size: 0.7rem;
  color: var(--gray-text);
}

.sheet__close {
  display: block;
  width: 100%;
  margin-top: 16px;
  padding: 14px;
  border: 2px solid var(--gray-light);
  border-radius: var(--radius);
  background: none;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  transition: background 0.2s;
}
.sheet__close:hover {
  background: var(--gray-bg);
}
.sheet__close:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius);
}

/* ── Divider ───────────────────────────────────────────────────────── */
.divider {
  border: none;
  height: 1px;
  background: var(--gray-light);
  margin: 0 12px;
}

/* ── AR fallback message ───────────────────────────────────────────── */
.ar-fallback {
  display: none;
  text-align: center;
  padding: 14px 12px;
  margin: 12px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--gray-text);
}

/* ── CTA button (sticky na dole) ───────────────────────────────────── */
.cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: sticky;
  bottom: 0;
  margin: 12px;
  padding: 16px;
  border-radius: var(--radius);
  background: var(--yellow);
  color: var(--cta-text);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: background 0.2s, transform 0.15s;
  box-shadow: 0 4px 20px rgba(255, 205, 0, 0.35);
}

.cta:hover {
  background: var(--yellow-hover);
}
.cta:active {
  transform: scale(0.98);
}
.cta:focus-visible {
  box-shadow: var(--focus-ring), 0 4px 20px rgba(255, 205, 0, 0.35);
  border-radius: var(--radius);
}

/* Secondary variant (InStore CTA) */
#cta {
  margin-bottom: 32px;
  background: transparent;
  color: var(--dark);
  border: 2px solid var(--gray-light);
  box-shadow: none;
}
#cta:hover {
  background: var(--card-hover);
  border-color: var(--card-border-hover);
}
#cta:focus-visible {
  box-shadow: var(--focus-ring);
}

/* Dark variant (AR button) */
.cta--dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--dark);
  color: #fff;
  border: none;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(29, 29, 27, 0.2);
}
.cta--dark:hover {
  background: #333;
}
.cta--dark:focus-visible {
  box-shadow: var(--focus-ring), 0 4px 20px rgba(29, 29, 27, 0.2);
  border-radius: var(--radius);
}

/* ── Responsywność ─────────────────────────────────────────────────── */

/* Małe telefony (SE, 320px) */
@media (max-width: 359px) {
  .card {
    padding: 10px 4px;
  }
  .card__name {
    font-size: 0.78rem;
  }
  .card__dims {
    font-size: 0.58rem;
  }
}

/* Większe ekrany / tablety */
@media (min-width: 600px) {
  .header {
    padding-top: 24px;
  }
  .viewer {
    max-width: 560px;
    margin: 0 auto;
  }
  .selector {
    max-width: 560px;
    margin: 0 auto;
  }
  .cta {
    max-width: 560px;
    margin: 12px auto;
  }
  .sheet {
    max-width: 560px;
    margin: 0 auto;
    left: 0;
    right: 0;
  }
  .compare__box {
    max-width: 140px;
  }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}