.v-scroll-top {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right, 0px));
  bottom: max(1rem, env(safe-area-inset-bottom, 0px));
  z-index: 180;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: 999px;
  border: 1px solid var(--border, #e5e5e5);
  background: var(--surface, #fff);
  color: var(--muted, #525252);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
  transition:
    opacity 0.2s ease,
    transform 0.2s ease,
    color 0.15s ease,
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}

.v-scroll-top.is-visible {
  opacity: 0.88;
  pointer-events: auto;
  transform: translateY(0);
}

.v-scroll-top:hover {
  opacity: 1;
  color: var(--text, #171717);
  border-color: color-mix(in srgb, var(--v-brand-teal, #1375d9) 45%, var(--border, #e5e5e5));
  box-shadow: 0 4px 14px rgba(19, 117, 217, 0.18);
}

.v-scroll-top:focus-visible {
  outline: 2px solid var(--v-brand-teal, #1375d9);
  outline-offset: 2px;
}

body:has(.v-site-footer) .v-scroll-top {
  bottom: max(3.25rem, calc(env(safe-area-inset-bottom, 0px) + 2.5rem));
}