/* Floating contact — shared home + landing */
.uc-icon-zalo {
  display: inline-block;
  flex-shrink: 0;
  vertical-align: middle;
}
.uc-icon-zalo path {
  fill: currentColor;
}

.floating-contact {
  position: fixed;
  left: max(12px, env(safe-area-inset-left, 0px));
  right: auto;
  bottom: max(16px, env(safe-area-inset-bottom, 0px));
  z-index: 1080;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 8px 7px;
  border-radius: 999px;
  background: rgba(10, 12, 22, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px) saturate(1.15);
  -webkit-backdrop-filter: blur(14px) saturate(1.15);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.floating-contact a,
.floating-contact-toggle {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: none;
  font-size: 15px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}

.floating-contact a::after {
  content: attr(data-tip);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%) translateX(-4px);
  white-space: nowrap;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #1a1200;
  background: linear-gradient(135deg, #f0c45a, #e8b84b);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.floating-contact a:hover,
.floating-contact a:focus-visible {
  transform: translateX(2px) scale(1.04);
  border-color: rgba(254, 185, 56, 0.55);
  background: rgba(254, 185, 56, 0.18);
  color: #fff;
  box-shadow: 0 0 0 3px rgba(254, 185, 56, 0.12);
}

.floating-contact a:hover::after,
.floating-contact a:focus-visible::after {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

.floating-contact .phone {
  background: linear-gradient(145deg, var(--sun-orange, #feb938), var(--sun-orange-soft, #fdc54f));
  color: #1a1200;
  border-color: rgba(254, 185, 56, 0.55);
  box-shadow: 0 6px 18px rgba(254, 185, 56, 0.35);
}

.floating-contact .phone:hover,
.floating-contact .phone:focus-visible {
  color: #1a1200;
  background: linear-gradient(145deg, #ffc85a, #feb938);
}

.floating-contact .zalo,
.floating-contact .mess,
.floating-contact .mail,
.floating-contact .support {
  background: rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.95);
}

.floating-contact .zalo .uc-icon-zalo {
  width: 18px;
  height: 18px;
  color: #7eb6ff;
}

.floating-contact .mess { color: #8ab4ff; }
.floating-contact .mail { color: #7dd3c0; }
.floating-contact .support { color: #ffc85a; }

.floating-contact .back-to-top {
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.7);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

.floating-contact .back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.floating-contact .back-to-top:hover,
.floating-contact .back-to-top:focus-visible {
  color: #fff;
}

.floating-contact-toggle {
  border: 1px solid rgba(254, 185, 56, 0.35);
  background: linear-gradient(145deg, rgba(254, 185, 56, 0.2), rgba(255, 255, 255, 0.06));
  color: #ffc85a;
  cursor: pointer;
  display: none;
}

/* P12: nhường chỗ sticky CTA dưới (≤1023px) */
@media (max-width: 1023px) {
  body.btd .floating-contact {
    bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  }
}

@media (max-width: 767.98px) {
  .floating-contact {
    left: max(12px, env(safe-area-inset-left, 0px));
    right: auto;
    bottom: calc(76px + env(safe-area-inset-bottom, 0px));
    gap: 7px;
    z-index: 1080;
    pointer-events: none;
    align-items: flex-start;
  }

  body.btd .floating-contact {
    bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  }

  .floating-contact-toggle,
  .floating-contact a {
    pointer-events: auto;
  }

  .floating-contact-toggle {
    display: inline-flex;
    width: 44px;
    height: 44px;
    font-size: 15px;
  }

  .floating-contact a {
    width: 42px;
    height: 42px;
    font-size: 14px;
  }

  .floating-contact a::after {
    display: none;
  }

  .floating-contact .zalo .uc-icon-zalo {
    width: 17px;
    height: 17px;
  }

  .floating-contact:not(.is-open) a:not(.back-to-top) {
    display: none;
    opacity: 0;
    pointer-events: none;
    transform: none;
  }

  .floating-contact a:not(.back-to-top) {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-6px) scale(0.92);
  }

  .floating-contact.is-open a:not(.back-to-top) {
    display: flex;
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0) scale(1);
  }

  .floating-contact .back-to-top {
    display: flex;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .floating-contact .back-to-top:not(.is-visible) {
    display: none;
    opacity: 0;
    pointer-events: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .floating-contact a,
  .floating-contact-toggle,
  .floating-contact .back-to-top {
    transition: none;
  }
}