.notification-viewport {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 2147483647;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.75rem;
    width: min(100vw - 2rem, 26rem);
    pointer-events: none;
}

.notification-viewport > * {
    pointer-events: auto;
}

.theme-notification {
    --notification-accent: #3f7b65;
    --notification-surface: rgba(255, 255, 255, 0.97);
    --notification-border: rgba(47, 107, 85, 0.2);
    --notification-text: #17181b;
    --notification-muted: #5e646d;
    --notification-duration: 5000ms;
    position: relative;
    width: 100%;
    border-radius: 1rem;
    border: 1px solid var(--notification-border);
    background: var(--notification-surface);
    color: var(--notification-text);
    box-shadow: 0 1rem 2rem rgba(18, 22, 20, 0.16);
    backdrop-filter: blur(12px);
    padding: 0.9rem 0.95rem 1rem;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 0.75rem;
    align-items: flex-start;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-0.4rem) scale(0.98);
    transition: opacity 180ms ease, transform 180ms ease;
}

.theme-notification.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.theme-notification__icon {
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    display: grid;
    place-items: center;
    font-weight: 800;
    color: #fff;
    background: var(--notification-accent);
}

.theme-notification__body {
    min-width: 0;
}

.theme-notification__title {
    margin: 0;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--notification-muted);
    font-weight: 800;
}

.theme-notification__message {
    margin: 0.2rem 0 0;
    font-size: 0.94rem;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.theme-notification__close {
    border: 0;
    background: transparent;
    color: var(--notification-muted);
    font-size: 1.2rem;
    line-height: 1;
    padding: 0.1rem 0.2rem;
    cursor: pointer;
}

.theme-notification__progress {
    position: absolute;
    inset: auto 0 0 0;
    height: 3px;
    background: var(--notification-accent);
    transform-origin: left;
    animation: notification-progress var(--notification-duration) linear forwards;
}

.theme-notification--success {
    --notification-accent: #2e7d57;
    --notification-border: rgba(46, 125, 87, 0.32);
}

.theme-notification--danger {
    --notification-accent: #b03a45;
    --notification-border: rgba(176, 58, 69, 0.3);
}

.theme-notification--warning {
    --notification-accent: #b0893a;
    --notification-border: rgba(176, 137, 58, 0.34);
}

.theme-notification--info {
    --notification-accent: #326999;
    --notification-border: rgba(50, 105, 153, 0.3);
}

.theme-notification--neutral {
    --notification-accent: #6b7280;
    --notification-border: rgba(107, 114, 128, 0.3);
}

@keyframes notification-progress {
    from {
        transform: scaleX(1);
    }
    to {
        transform: scaleX(0);
    }
}

html.mk-dark .theme-notification {
    --notification-surface: rgba(33, 32, 27, 0.95);
    --notification-border: rgba(124, 112, 91, 0.45);
    --notification-text: #f5f1e8;
    --notification-muted: #d2cab8;
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.35);
}

@media (max-width: 575px) {
    .notification-viewport {
        top: 0.75rem;
        right: 0.75rem;
        left: 0.75rem;
        width: auto;
    }
}