/* =========================================================
   Lens Try-On Studio (LTS) - FULL public.css
   - Premium UI
   - Mobile responsive (tablet + phones)
   - RTL support via .lts_rtl on wrapper
   - Two-layer image crossfade support (no flicker)
   ========================================================= */

.lts_wrap,
.lts_wrap * { box-sizing: border-box; }

.lts_wrap {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  font-family: inherit;
}

/* ---------- Layout ---------- */
.lts_wrap {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 24px;
  align-items: start;
}

/* ---------- Left Panel (Models) ---------- */
.lts_left {
  background: #0b3b8e;
  border-radius: 18px;
  padding: 18px 18px 20px;
  color: #fff;
  overflow: hidden;
}

.lts_left_header {
  text-align: center;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0.2px;
  margin: 6px 0 16px;
  position: relative;
}

.lts_left_header:before,
.lts_left_header:after {
  content: "";
  position: absolute;
  top: 50%;
  width: 32%;
  height: 1px;
  background: rgba(255, 255, 255, 0.35);
}
.lts_left_header:before { left: 0; }
.lts_left_header:after  { right: 0; }

.lts_model_grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.lts_model_btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 10px;
  cursor: pointer;
  text-align: center;
  transition: transform 0.08s ease, background 0.15s ease, border-color 0.15s ease;
  color: #fff;
}

.lts_model_btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.16);
}

.lts_model_btn.is-active {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.45);
}

.lts_model_btn img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 12px;
  display: block;
  background: rgba(255, 255, 255, 0.18);
}

.lts_model_name {
  margin-top: 9px;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.15;
}

/* ---------- Right Panel ---------- */
.lts_right {
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
}

.lts_preview_row {
  display: grid;
  grid-template-columns: 440px 1fr;
  gap: 20px;
  padding: 20px;
}

/* ---------- Image Frame + Stage ---------- */
.lts_image_frame {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  min-height: 560px;
}

/* Two-layer stage (crossfade) */
.lts_image_stage {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  touch-action: none;
}

.lts_main_image,
.lts_main_image_next {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  transform-origin: center center;
  will-change: transform, opacity;
  user-select: none;
  -webkit-user-drag: none;
}

.lts_main_image { opacity: 1; }
.lts_main_image_next {
  opacity: 0;
  transition: opacity 160ms ease;
}

.lts_wrap.lts_fade_in .lts_main_image_next { opacity: 1; }

/* Loading state */
.lts_wrap.lts_is_loading .lts_main_image { opacity: 0.75; }

/* ---------- Toolbar Tools ---------- */
.lts_toolbar {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  gap: 10px;
  z-index: 10;
}

.lts_tool {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: none;
  background: #ff2f7a;
  color: #fff;
  cursor: pointer;
  font-weight: 900;
  /*font-size: 18px;*/
  /*line-height: 44px;*/
  padding: unset !important;
  text-align: center;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18);
  transition: transform 0.08s ease, filter 0.15s ease;
}

.lts_tool:hover { filter: brightness(1.03); }
.lts_tool:active { transform: scale(0.98); }

/* ---------- Controls (Right side) ---------- */
.lts_controls { min-width: 0; }

.lts_controls_title {
  font-size: 18px;
  font-weight: 900;
  color: #0b3b8e;
  margin: 4px 0 12px;
}

/* Swatches */
.lts_swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.lts_swatch_btn {
  width: 64px;
  height: 64px;
  border-radius: 999px;
  border: 3px solid transparent;
  background: #fff;
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.08s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.lts_swatch_btn:hover { transform: translateY(-1px); }
.lts_swatch_btn.is-active {
  border-color: #0b3b8e;
  box-shadow: 0 8px 18px rgba(11, 59, 142, 0.18);
}

.lts_swatch_btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Selection */
.lts_selection_title {
  font-size: 16px;
  font-weight: 900;
  color: #0b3b8e;
  margin: 10px 0 12px;
}

.lts_selection_box {
  border-radius: 16px;
  border: 1px solid #efe7d5;
  background: #fbf7ee;
  padding: 16px;
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 14px;
  align-items: center;
}

.lts_selection_swatch {
  width: 64px;
  height: 64px;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  object-fit: cover;
  display: block;
  background: #fff;
}

.lts_selection_name {
  font-size: 18px;
  font-weight: 1000;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: #0b3b8e;
}

.lts_selection_sub {
  margin-top: 4px;
  font-size: 12px;
  color: #6b7280;
  font-weight: 700;
}

.lts_add_to_cart {
  appearance: none;
  border: none;
  background: #a67c00;
  color: #fff;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 900;
  cursor: pointer;
  white-space: nowrap;
  min-width: 140px;
  transition: transform 0.08s ease, filter 0.15s ease;
}

.lts_add_to_cart:hover { filter: brightness(1.03); }
.lts_add_to_cart:active { transform: scale(0.99); }
.lts_add_to_cart:disabled { opacity: 0.6; cursor: not-allowed; }

.lts_cart_msg {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 800;
  color: #065f46;
  min-height: 16px;
}

.lts_hint {
  margin-top: 14px;
  font-size: 12px;
  color: #6b7280;
  line-height: 1.35;
}

/* ---------- Accessibility / focus ---------- */
.lts_model_btn:focus,
.lts_swatch_btn:focus,
.lts_add_to_cart:focus,
.lts_tool:focus {
  outline: 3px solid rgba(11, 59, 142, 0.35);
  outline-offset: 2px;
}

/* ---------- RTL Support ---------- */
.lts_wrap.lts_rtl { direction: rtl; }
.lts_wrap.lts_rtl .lts_preview_row { direction: rtl; }

.lts_wrap.lts_rtl .lts_toolbar { right: auto; left: 12px; }

.lts_wrap.lts_rtl .lts_selection_box { direction: rtl; grid-template-columns: auto 1fr 72px; }
.lts_wrap.lts_rtl .lts_selection_left  { order: 3; }
.lts_wrap.lts_rtl .lts_selection_mid   { order: 2; }
.lts_wrap.lts_rtl .lts_selection_right { order: 1; }

.lts_wrap.lts_rtl .lts_left_header:before { left: auto; right: 0; }
.lts_wrap.lts_rtl .lts_left_header:after  { right: auto; left: 0; }

.lts_wrap.lts_rtl .lts_selection_name { letter-spacing: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .lts_wrap { grid-template-columns: 320px 1fr; }
  .lts_preview_row { grid-template-columns: 420px 1fr; }
  .lts_image_frame { min-height: 520px; }
}

@media (max-width: 980px) {
  .lts_wrap { grid-template-columns: 1fr !important; gap: 16px; }
  .lts_model_grid { grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
  .lts_preview_row { grid-template-columns: 1fr !important; padding: 16px; }
  .lts_image_frame { min-height: 420px !important; }
  .lts_toolbar { right: 10px; }
  .lts_wrap.lts_rtl .lts_toolbar { right: auto; left: 10px; }
}

@media (max-width: 680px) {
  .lts_left { padding: 14px; }
  .lts_left_header { font-size: 16px; margin: 4px 0 12px; }
  .lts_model_btn img { height: 108px; }
  .lts_swatch_btn { width: 60px; height: 60px; }
  .lts_selection_box { padding: 14px; grid-template-columns: 64px 1fr; }
  .lts_selection_right { grid-column: 1 / -1; }
  .lts_add_to_cart { width: 100%; min-width: 0; }
}

@media (max-width: 480px) {
  .lts_model_grid { grid-template-columns: 1fr 1fr; }
  .lts_model_btn { padding: 9px; border-radius: 12px; }
  .lts_model_btn img { height: 104px; border-radius: 10px; }
  .lts_preview_row { padding: 14px; }
  .lts_image_frame { border-radius: 14px; min-height: 380px !important; }
  .lts_tool { width: 46px; height: 46px; font-size: 18px; }
  .lts_controls_title { font-size: 17px; }
  .lts_swatches { gap: 10px; }
  .lts_swatch_btn { width: 56px; height: 56px; }
  .lts_selection_name { font-size: 16px; }
}

@media (max-width: 360px) {
  .lts_swatch_btn { width: 52px; height: 52px; }
  .lts_tool { width: 44px; height: 44px; }
}

/* ---------- Print ---------- */
@media print {
  .lts_left, .lts_toolbar { display: none !important; }
  .lts_wrap { grid-template-columns: 1fr !important; }
  .lts_preview_row { grid-template-columns: 1fr !important; }
}