.spviet-ulc-switcher,
.spviet-ulc-switcher * {
  box-sizing: border-box;
}

.spviet-ulc-floating {
  position: fixed;
  left: calc(14px + env(safe-area-inset-left));
  right: auto;
  bottom: calc(18px + env(safe-area-inset-bottom));
  z-index: 2147483000;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, "Noto Sans", sans-serif;
  pointer-events: auto;
}

.spviet-ulc-pos-safe-left,
.spviet-ulc-pos-left,
.spviet-ulc-pos-bottom-left {
  left: calc(14px + env(safe-area-inset-left));
  right: auto;
}

.spviet-ulc-pos-safe-right,
.spviet-ulc-pos-right,
.spviet-ulc-pos-smart-right,
.spviet-ulc-pos-bottom-right {
  right: calc(14px + env(safe-area-inset-right));
  left: auto;
}

body.admin-bar .spviet-ulc-floating {
  bottom: calc(18px + env(safe-area-inset-bottom));
}

.spviet-ulc-inline {
  display: inline-flex;
  vertical-align: middle;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, "Noto Sans", sans-serif;
}

.spviet-ulc-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.spviet-ulc-toggle {
  isolation: isolate;
  min-width: 58px;
  height: 44px;
  border: 1px solid rgba(15, 23, 42, .14);
  border-radius: 999px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: rgba(255,255,255,.96);
  color: #111827;
  cursor: pointer;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .01em;
  line-height: 1;
  box-shadow: 0 12px 35px rgba(15,23,42,.18), 0 2px 7px rgba(15,23,42,.10);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  -webkit-tap-highlight-color: transparent;
}

.spviet-ulc-toggle:hover,
.spviet-ulc-wrap.spviet-ulc-open .spviet-ulc-toggle {
  isolation: isolate;
  transform: translateY(-1px);
  border-color: rgba(37, 99, 235, .42);
  box-shadow: 0 16px 38px rgba(37,99,235,.20), 0 5px 12px rgba(15,23,42,.12);
}

.spviet-ulc-globe { font-size: 18px; }
.spviet-ulc-caret { opacity: .7; font-size: 13px; margin-left: -2px; }
.spviet-ulc-current { white-space: nowrap; }

.spviet-ulc-menu {
  position: absolute;
  left: 0;
  right: auto;
  bottom: calc(100% + 10px);
  min-width: 210px;
  display: none;
  padding: 8px;
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, .12);
  background: rgba(255,255,255,.98);
  box-shadow: 0 22px 60px rgba(15,23,42,.24), 0 6px 16px rgba(15,23,42,.12);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.spviet-ulc-pos-safe-right .spviet-ulc-menu,
.spviet-ulc-pos-right .spviet-ulc-menu,
.spviet-ulc-pos-smart-right .spviet-ulc-menu,
.spviet-ulc-pos-bottom-right .spviet-ulc-menu {
  right: 0;
  left: auto;
}

.spviet-ulc-wrap.spviet-ulc-open .spviet-ulc-menu { display: grid; gap: 5px; }

.spviet-ulc-option {
  width: 100%;
  border: 0;
  border-radius: 13px;
  padding: 10px 11px;
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #0f172a;
  text-align: left;
  cursor: pointer;
  font-size: 14px;
  font-weight: 750;
}

.spviet-ulc-option:hover { background: rgba(15,23,42,.06); }
.spviet-ulc-option.spviet-ulc-active { background: rgba(37,99,235,.11); color: #1d4ed8; }
.spviet-ulc-flag { font-size: 20px; line-height: 1; }
.spviet-ulc-label { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.spviet-ulc-short { opacity: .72; font-size: 12px; font-weight: 900; }

@media (max-width: 782px) {
  .spviet-ulc-floating {
    left: calc(10px + env(safe-area-inset-left));
    right: auto;
    bottom: calc(12px + env(safe-area-inset-bottom));
  }
  .spviet-ulc-pos-safe-right,
  .spviet-ulc-pos-right,
  .spviet-ulc-pos-smart-right,
  .spviet-ulc-pos-bottom-right {
    right: calc(10px + env(safe-area-inset-right));
    left: auto;
  }
  .spviet-ulc-toggle {
  isolation: isolate;
    height: 42px;
    min-width: 52px;
    padding: 0 10px;
    font-size: 12px;
  }
  .spviet-ulc-current { max-width: 52px; overflow: hidden; text-overflow: ellipsis; }
  .spviet-ulc-menu { min-width: 190px; bottom: calc(100% + 8px); }
}

@media print {
  .spviet-ulc-switcher { display: none !important; }
}


/* v1.1.0: stronger collision-safe left dock and admin polish */
.spviet-ulc-pos-safe-left.spviet-ulc-floating,
.spviet-ulc-pos-left.spviet-ulc-floating,
.spviet-ulc-pos-bottom-left.spviet-ulc-floating { left: max(10px, calc(14px + env(safe-area-inset-left))); right: auto !important; }
.spviet-ulc-pos-safe-right.spviet-ulc-floating,
.spviet-ulc-pos-right.spviet-ulc-floating,
.spviet-ulc-pos-bottom-right.spviet-ulc-floating { right: max(10px, calc(14px + env(safe-area-inset-right))); left: auto !important; }
.spviet-ulc-switcher[data-spviet-ulc-switcher] { user-select: none; }
.spviet-ulc-switcher .spviet-ulc-toggle:focus-visible,
.spviet-ulc-switcher .spviet-ulc-option:focus-visible { outline: 3px solid rgba(37,99,235,.36); outline-offset: 2px; }
.spviet-ulc-admin textarea { max-width: 1180px; }
@media (max-width: 480px) { .spviet-ulc-menu { min-width: min(230px, calc(100vw - 24px)); } .spviet-ulc-option { min-height: 42px; } }


/* v1.2.2 Checkout/Member/Shop Deep Dictionary Closeout Pack: keep the switcher above app chrome but away from chat widgets. */
body.spviet-ulc-adapter-retail .spviet-ulc-floating,
body.spviet-ulc-adapter-restaurant .spviet-ulc-floating {
  z-index: 2147483000;
}
body.spviet-ulc-adapter-retail .spviet-ulc-pos-safe-left.spviet-ulc-floating,
body.spviet-ulc-adapter-restaurant .spviet-ulc-pos-safe-left.spviet-ulc-floating {
  left: max(10px, calc(14px + env(safe-area-inset-left))) !important;
  right: auto !important;
}
@media (max-width: 782px) {
  body.spviet-ulc-adapter-retail .spviet-ulc-floating,
  body.spviet-ulc-adapter-restaurant .spviet-ulc-floating {
    bottom: max(10px, calc(12px + env(safe-area-inset-bottom))) !important;
  }
}


/* v1.2.3 ASEAN Language Visibility Manager: 12-language menu safe scroll. */
.spviet-ulc-menu {
  max-height: min(72vh, 520px);
  overflow-y: auto;
  overscroll-behavior: contain;
}
@media (max-width: 480px) {
  .spviet-ulc-menu { max-height: min(68vh, 440px); }
}