.auth-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

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

.auth-sheet {
  position: relative;
  background: rgba(8, 8, 20, 0.95);
  padding: 32px;
  border-radius: 16px;
  width: min(320px, 90vw);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  color: #f5f5ff;
}

#auth-close {
  position: absolute;
  top: 12px;
  right: 12px;
  border: none;
  background: transparent;
  color: #c8cffb;
  font-size: 18px;
  cursor: pointer;
}

.auth-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 18px;
}

.provider-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(200, 212, 255, 0.3);
  border-radius: 999px;
  background: rgba(21, 21, 48, 0.85);
  color: #ffffff;
  padding: 10px 18px;
  cursor: pointer;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.provider-btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

.provider-btn .icon {
  font-size: 18px;
  font-weight: 700;
}

.auth-legal {
  margin-top: 24px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(200, 212, 255, 0.65);
}

header#auth-banner {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
  background: rgba(12, 12, 40, 0.45);
  padding: 10px 14px;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  z-index: 200;
}

.sl-btn {
  border: 1px solid rgba(200, 212, 255, 0.3);
  border-radius: 999px;
  background: rgba(28, 28, 60, 0.85);
  color: #ffffff;
  padding: 6px 16px;
  cursor: pointer;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sl-btn[hidden] {
  display: none !important;
}

.sl-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}