.etk-ui-layer {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

.etk-ui-layer.open {
  opacity: 1;
  pointer-events: auto;
}

.etk-ui-card {
  width: 100%;
  max-width: 360px;
  background: rgba(12, 12, 12, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.55);
  overflow: hidden;
  transform: translateY(12px) scale(0.98);
  transition: transform 0.22s ease;
}

.etk-ui-layer.open .etk-ui-card {
  transform: translateY(0) scale(1);
}

.etk-ui-brand {
  padding: 14px 18px 0;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: #ff3333;
}

.etk-ui-title {
  padding: 6px 18px 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}

.etk-ui-message {
  padding: 10px 18px 16px;
  font-size: 0.88rem;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.78);
  white-space: pre-wrap;
}

.etk-ui-input {
  display: block;
  width: calc(100% - 36px);
  margin: 0 18px 16px;
  padding: 11px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font-size: 0.88rem;
  font-family: inherit;
  outline: none;
}

.etk-ui-input[hidden] {
  display: none !important;
  margin: 0;
  padding: 0;
  border: 0;
  height: 0;
  overflow: hidden;
}

.etk-ui-input:focus {
  border-color: rgba(255, 51, 51, 0.55);
  box-shadow: 0 0 0 2px rgba(255, 51, 51, 0.15);
}

.etk-ui-actions {
  display: flex;
  gap: 8px;
  padding: 0 18px 18px;
}

.etk-ui-btn {
  flex: 1;
  border: none;
  border-radius: 999px;
  padding: 11px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.15s ease;
}

.etk-ui-btn:active {
  opacity: 0.75;
}

.etk-ui-btn.secondary {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.85);
}

.etk-ui-btn.primary {
  background: #ff3333;
  color: #fff;
  box-shadow: 0 0 14px rgba(255, 51, 51, 0.25);
}

.etk-ui-toast-wrap {
  position: fixed;
  top: calc(env(safe-area-inset-top, 12px) + 12px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2100;
  width: min(92vw, 380px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.etk-ui-toast {
  pointer-events: auto;
  background: rgba(12, 12, 12, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-left: 3px solid #ff3333;
  border-radius: 12px;
  padding: 12px 14px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.84rem;
  line-height: 1.4;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  animation: etkToastIn 0.25s ease;
}

.etk-ui-toast.success { border-left-color: #3ecf6e; }
.etk-ui-toast.error { border-left-color: #ff3333; }
.etk-ui-toast.warn { border-left-color: #d4af37; }

@keyframes etkToastIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}