/* =====================================================================================
   msg_aletr UI (toast notifications) - optimized
   - No framework required
   - Accessible (aria-live), responsive, reduced-motion friendly
   ===================================================================================== */

:root {
  --msg-aletr-z: 10000;
  --msg-aletr-gap: 10px;
  --msg-aletr-pad: 10px;
  --msg-aletr-radius: 12px;
  --msg-aletr-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);

  --msg-aletr-font: 14px;
  --msg-aletr-line-height: 1.25;

  --msg-aletr-bg-success: #d1fae5; /* light green */
  --msg-aletr-bg-error:   #fee2e2; /* light red */
  --msg-aletr-bg-warning: #ffedd5; /* light orange */

  --msg-aletr-border-success: #10b981;
  --msg-aletr-border-error:   #ef4444;
  --msg-aletr-border-warning: #f59e0b;

  --msg-aletr-text: #111827;
}

/* Container */
#msg_aletr_container {
  position: fixed;
  right: var(--msg-aletr-gap);
  bottom: var(--msg-aletr-gap);
  z-index: var(--msg-aletr-z);

  display: none; /* hidden until first toast */
  flex-direction: column;
  gap: var(--msg-aletr-gap);

  padding: var(--msg-aletr-pad);
  background: rgba(192, 192, 192, 0.35);
  border-radius: var(--msg-aletr-radius);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);

  max-width: min(420px, calc(100vw - (var(--msg-aletr-gap) * 2)));
  pointer-events: none; /* allow clicks through except on toasts */
}

/* Toast line */
.msg_aletr_line {
  width: 400px;
  max-width: 100%;

  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: var(--msg-aletr-shadow);

  padding: 8px 14px;
  color: var(--msg-aletr-text);
  font-size: var(--msg-aletr-font);
  line-height: var(--msg-aletr-line-height);

  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 2px 10px;

  pointer-events: auto; /* clickable */

  /* Animation */
  transform: translateX(12px);
  opacity: 0;
  transition: transform 180ms ease, opacity 180ms ease;
}

.msg_aletr_line.is-visible {
  transform: translateX(0);
  opacity: 1;
}

.msg_aletr_line [msg] {
  grid-column: 1 / 2;
  grid-row: 1 / 2;
  font-weight: 600;
}

.msg_aletr_line [msg2] {
  grid-column: 1 / 2;
  grid-row: 2 / 3;
  opacity: 0.9;
}

.msg_aletr_close {
  grid-column: 2 / 3;
  grid-row: 1 / 3;

  border: none;
  background: rgba(255, 255, 255, 0.55);
  color: rgba(17, 24, 39, 0.9);

  width: 28px;
  height: 28px;
  border-radius: 999px;

  cursor: pointer;
  font-size: 16px;
  line-height: 1;

  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.msg_aletr_close:focus {
  outline: 2px solid rgba(59, 130, 246, 0.7);
  outline-offset: 2px;
}

/* Types */
.msg_aletr_bc_g {
  background-color: var(--msg-aletr-bg-success);
  border-left: 6px solid var(--msg-aletr-border-success);
}

.msg_aletr_bc_r {
  background-color: var(--msg-aletr-bg-error);
  border-left: 6px solid var(--msg-aletr-border-error);
}

.msg_aletr_bc_o {
  background-color: var(--msg-aletr-bg-warning);
  border-left: 6px solid var(--msg-aletr-border-warning);
}

/* Responsive */
@media (max-width: 720px) {
  #msg_aletr_container {
    left: var(--msg-aletr-gap);
    right: var(--msg-aletr-gap);
    max-width: none;
  }

  .msg_aletr_line {
    width: 100%;
    border-radius: 14px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .msg_aletr_line {
    transition: none;
  }
}