:root {
  --notification-bg: #4279EF;
  --notification-success: #2e7d32; 
  --notification-error: #d32f2f;   
  --notification-info: #1976d2;
  --notification-color: #fff;
  --indicator-color: #FFD700;
  --border-radius: 10px;
  --shadow: 0 4px 18px rgba(0, 0, 0, 0.18);
  --speed: .25s ease-in-out;
}

/* Контейнеры */
.notification__container {
  position: fixed;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px;
  pointer-events: none;
}

.notification__container--top-left   { top: 0;    left: 0;    align-items: flex-start; }
.notification__container--top-right  { top: 0;    right: 0;   align-items: flex-end; }
.notification__container--bottom-left{ bottom: 0; left: 0;    align-items: flex-start; }
.notification__container--bottom-right{bottom: 0; right: 0;   align-items: flex-end; }
.notification__container--top-center {
  top: 0; left: 50%;
  transform: translateX(-50%);
  align-items: center;
}
.notification__container--bottom-center {
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  align-items: center;
}

/* Карточка */
.notification {
  background-color: var(--notification-bg);
  color: var(--notification-color);
  min-width: 240px;
  max-width: 320px;
  width: 100%;
  padding: 12px 32px 12px 12px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .4s ease, transform .4s ease;
  pointer-events: auto;
  will-change: transform, opacity;
}

.notification--show {
  opacity: 1;
  transform: translateY(0);
}

/* Типы */
.notification--success { background-color: var(--notification-success); }
.notification--error   { background-color: var(--notification-error); }
.notification--info    { background-color: var(--notification-info); }

/* Контент */
.notification__header {
  font-weight: 700;
  font-size: 14px;
  margin: 0 0 4px;
  line-height: 1.25;
}
.notification__content {
  font-size: 14px;
  margin: 0;
  line-height: 1.35;
}

/* Индикатор жизни */
.notification__indicator {
  position: absolute;
  bottom: 0; left: 0;
  height: 3px; width: 100%;
  background-color: var(--indicator-color);
  border-bottom-left-radius: var(--border-radius);
  border-bottom-right-radius: var(--border-radius);
}

/* Кнопка закрытия */
.notification__close {
  position: absolute;
  top: 6px; right: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: none;
  border: none;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  color: #fff;
  width: 22px; height: 22px;
  padding: 0;
  border-radius: 999px;
  z-index: 10;
}
.notification__close:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
@media (hover: hover) {
  .notification__close:hover {
    background: rgba(255,255,255,.15);
  }
}

/* Снижение анимаций */
@media (prefers-reduced-motion: reduce) {
  .notification {
    transition: none !important;
    transform: none !important;
  }
  .notification__indicator {
    display: none !important;
  }
}

/* Тёмная тема (опционально) */
[data-theme="dark"] .notification {
  box-shadow: 0 6px 26px rgba(0,0,0,.35);
}