.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 2.5rem) 1rem 6.75rem;
}

.auth-overlay[hidden] {
  display: none !important;
}

.auth-overlay.is-open {
  display: grid;
}

.auth-overlay__veil {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, #0b1020 58%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.auth-overlay__dialog {
  position: relative;
  width: min(28.5rem, 100%);
  transform: translateY(18px);
  opacity: 0;
  transition:
    transform 700ms cubic-bezier(0.32, 0.72, 0, 1),
    opacity 700ms cubic-bezier(0.32, 0.72, 0, 1);
}

.auth-overlay.is-open .auth-overlay__dialog {
  transform: translateY(0);
  opacity: 1;
}

.auth-overlay__card {
  width: 100%;
  box-shadow:
    0 1px 0 color-mix(in srgb, #fff 55%, transparent) inset,
    0 28px 70px color-mix(in srgb, #121826 22%, transparent);
}

.auth-overlay__close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 0;
  border-radius: 999px;
  background: color-mix(in srgb, var(--text) 6%, var(--surface));
  color: var(--text);
  cursor: pointer;
  transition: transform 500ms cubic-bezier(0.32, 0.72, 0, 1);
}

.auth-overlay__close svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
}

.auth-overlay__close:hover {
  transform: scale(0.97);
}

.auth-guest {
  margin-top: 1rem;
  text-align: center;
}

.auth-guest button {
  border: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 0.92rem;
  text-decoration: underline;
  text-underline-offset: 0.2em;
  cursor: pointer;
}

.auth-guest button:hover {
  color: var(--brand-blue);
}

.auth-screen-toast {
  position: fixed;
  left: 50%;
  bottom: 1.35rem;
  z-index: 100;
  width: min(36rem, calc(100vw - 2rem));
  margin: 0;
  padding: 0.9rem 1.15rem;
  border-radius: 14px;
  background: var(--text);
  color: var(--surface);
  font-size: 0.92rem;
  line-height: 1.4;
  text-align: center;
  transform: translateX(-50%);
  box-shadow: 0 16px 40px color-mix(in srgb, #121826 28%, transparent);
}

.auth-screen-toast[hidden] {
  display: none !important;
}

body.is-auth-locked {
  overflow: hidden;
}