/* Page alerts are reduced to compact, semantic icon buttons. */
.alert-popover {
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
}

.alert-popover__trigger,
.alert-popover__close,
.toast__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0;
    cursor: pointer;
}

.alert-popover__trigger {
    width: 2.15rem;
    height: 2.15rem;
    border: 1px solid currentColor;
    background-image: none !important;
    transition: transform 160ms ease, filter 160ms ease;
}

.alert-popover__trigger:hover {
    transform: translateY(-1px);
    filter: brightness(0.97);
}

.alert-popover__trigger:focus-visible,
.alert-popover__close:focus-visible,
.toast__close:focus-visible {
    outline: 2px solid rgba(29, 78, 216, 0.3);
    outline-offset: 2px;
}

.alert-popover--info .alert-popover__trigger {
    background: var(--ui-primary-soft) !important;
    color: var(--ui-primary);
}

.alert-popover--success .alert-popover__trigger {
    background: var(--ui-success-soft) !important;
    color: var(--ui-success);
}

.alert-popover--warning .alert-popover__trigger {
    background: var(--ui-warning-soft) !important;
    color: var(--ui-warning);
}

.alert-popover--danger .alert-popover__trigger {
    background: var(--ui-danger-soft) !important;
    color: var(--ui-danger);
}

.alert-popover__icon {
    width: 1rem;
    height: 1rem;
}

.alert-popover__panel[popover] {
    position: fixed;
    inset: 50% auto auto 50%;
    width: min(30rem, calc(100vw - 2rem));
    max-height: min(72vh, 34rem);
    margin: 0;
    overflow: auto;
    border: 1px solid var(--ui-border-strong);
    border-left: 4px solid var(--ui-primary);
    border-radius: var(--ui-radius);
    padding: 0;
    background: #ffffff;
    color: var(--ui-ink);
    box-shadow: 0 18px 55px rgba(15, 23, 42, 0.22);
    opacity: 0;
    transform: translate(-50%, -48%) scale(0.97);
    transition: opacity 160ms ease, transform 160ms ease;
}

.alert-popover__panel[popover]:popover-open {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.alert-popover__panel[popover]::backdrop {
    background: rgba(15, 23, 42, 0.18);
}

.alert-popover__panel--success { border-left-color: var(--ui-success) !important; }
.alert-popover__panel--warning { border-left-color: var(--ui-warning) !important; }
.alert-popover__panel--danger { border-left-color: var(--ui-danger) !important; }

.alert-popover__header {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.7rem;
    padding: 0.8rem 0.9rem;
    border-bottom: 1px solid var(--ui-border);
    background: var(--ui-surface-muted);
}

.alert-popover__symbol,
.toast__symbol {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    flex: 0 0 auto;
}

.alert-popover__panel--info .alert-popover__symbol,
.toast--info .toast__symbol {
    background: var(--ui-primary-soft);
    color: var(--ui-primary);
}

.alert-popover__panel--success .alert-popover__symbol,
.toast--success .toast__symbol {
    background: var(--ui-success-soft);
    color: var(--ui-success);
}

.alert-popover__panel--warning .alert-popover__symbol,
.toast--warning .toast__symbol {
    background: var(--ui-warning-soft);
    color: var(--ui-warning);
}

.alert-popover__panel--danger .alert-popover__symbol,
.toast--danger .toast__symbol {
    background: var(--ui-danger-soft);
    color: var(--ui-danger);
}

.alert-popover__panel-icon,
.toast__icon {
    width: 1rem;
    height: 1rem;
}

.alert-popover__heading,
.toast__content {
    min-width: 0;
}

.alert-popover__eyebrow,
.toast__eyebrow {
    margin: 0;
    color: var(--ui-ink-muted);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    line-height: 1.15;
    text-transform: uppercase;
}

.alert-popover__title,
.toast__title {
    margin: 0.15rem 0 0;
    font-size: 0.82rem;
    font-weight: 800;
    line-height: 1.3;
}

.alert-popover__close,
.toast__close {
    width: 1.85rem;
    height: 1.85rem;
    border: 0;
    background: transparent !important;
    color: var(--ui-ink-muted);
}

.alert-popover__close:hover,
.toast__close:hover {
    background: rgba(15, 23, 42, 0.07) !important;
    color: var(--ui-ink);
}

.alert-popover__close-icon,
.toast__close-icon {
    width: 0.9rem;
    height: 0.9rem;
}

.alert-popover__content {
    padding: 0.9rem;
    font-size: 0.82rem;
    line-height: 1.45;
}

.alert-popover__content > :last-child,
.toast__message {
    margin-bottom: 0;
}

/* Action feedback appears temporarily in the middle of the viewport. */
.toast-viewport {
    position: fixed;
    top: 50%;
    left: 50%;
    z-index: 140;
    display: grid;
    gap: 0.65rem;
    width: min(31rem, calc(100vw - 2rem));
    pointer-events: none;
    transform: translate(-50%, -50%);
}

.toast {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
    gap: 0.75rem;
    border: 1px solid var(--ui-border-strong);
    border-left: 4px solid var(--ui-primary);
    border-radius: var(--ui-radius);
    padding: 0.8rem 0.85rem;
    background: #ffffff;
    color: var(--ui-ink);
    box-shadow: 0 18px 55px rgba(15, 23, 42, 0.22);
    opacity: 0;
    pointer-events: auto;
    transform: translateY(0.7rem) scale(0.97);
    transition: opacity 180ms ease, transform 180ms ease;
}

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

.toast.is-leaving {
    opacity: 0;
    transform: translateY(-0.45rem) scale(0.98);
}

.toast--success { border-left-color: var(--ui-success); }
.toast--warning { border-left-color: var(--ui-warning); }
.toast--danger { border-left-color: var(--ui-danger); }

.toast__message {
    margin-top: 0.22rem;
    font-size: 0.82rem;
    line-height: 1.4;
    overflow-wrap: anywhere;
}

@media (max-width: 640px) {
    .alert-popover__panel[popover],
    .toast-viewport {
        width: calc(100vw - 1rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    .alert-popover__trigger,
    .alert-popover__panel[popover],
    .toast {
        transition: none;
    }
}