/* ───────── Alerts / flash messages ───────── */

.flash-container {
    padding-top: calc(var(--header-h) + var(--space-4));
    padding-bottom: 0;
    position: relative;
    z-index: 2;
}

.alert {
    padding: var(--space-4) var(--space-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    border: 1px solid transparent;
}

.alert-info {
    background: var(--accent-tint-subtle);
    color: var(--accent-text);
    border-color: var(--accent-line);
}

.alert-success {
    background: var(--success-tint);
    color: var(--success-text);
    border-color: var(--success-line);
}

.alert-warning {
    background: var(--warn-tint);
    color: var(--warn-text);
    border-color: var(--warn-line);
}

.alert-error {
    background: var(--danger-tint);
    color: var(--danger-text);
    border-color: var(--danger-line);
}

/* Page alert for failed HTMX requests (js/htmx-feedback.js). Fixed so it is
   seen wherever the user is scrolled. It is an error, so it stays until it
   is dismissed or the same action succeeds; it never times out. */
.request-alert {
    position: fixed;
    left: 50%;
    bottom: calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
    z-index: 90;
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    width: min(560px, calc(100% - 32px));
    margin: 0;
    padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
    background: var(--danger-raised);
    box-shadow: var(--elevation-4);
    transform: translateX(-50%);
    animation: request-alert-in var(--dur-base) var(--ease-decelerate);
}

.request-alert[hidden] {
    display: none;
}

.request-alert-body {
    flex: 1;
    min-width: 0;
    padding: var(--space-2) 0;
}

.request-alert-msg {
    margin: 0;
}

.request-alert-details {
    margin-top: var(--space-2);
    font-size: var(--font-size-sm);
}

.request-alert-details summary {
    cursor: pointer;
    font-weight: 600;
}

.request-alert-details code {
    display: block;
    margin-top: var(--space-1);
    font-size: var(--font-size-xs);
    overflow-wrap: anywhere;
    opacity: 0.85;
}

.request-alert-close {
    display: inline-flex;
    flex: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    border-radius: var(--radius-md);
    background: transparent;
    color: inherit;
    cursor: pointer;
}

@media (hover: hover) {
    .request-alert-close:hover {
        background: var(--surface-strong);
    }
}

.request-alert-close:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: -4px;
}

@keyframes request-alert-in {
    from {
        opacity: 0;
        transform: translate(-50%, 12px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .request-alert {
        animation: none;
    }
}

/* ───────── Toasts (js/toast.js, components.ToastRegion) ─────────
   Passive success, with Undo where the action can be reversed. Never for
   errors (those use .request-alert above). Elevation 4: the lightest
   surface, a hairline border and a layered shadow. Bottom-left of the
   content on desktop, full width on phones; lifted clear of the request
   alert when both show. */
.toast-region {
    position: fixed;
    left: calc(var(--app-sidebar-w, 0px) + var(--space-6));
    bottom: calc(var(--space-6) + env(safe-area-inset-bottom, 0px));
    z-index: 80;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    width: min(420px, calc(100% - var(--app-sidebar-w, 0px) - 48px));
    pointer-events: none;
}

body:has(.request-alert:not([hidden])) .toast-region {
    bottom: calc(112px + env(safe-area-inset-bottom, 0px));
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-1) var(--space-1) var(--space-4);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    background: var(--raised-strong);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    line-height: 1.45;
    pointer-events: auto;
    box-shadow: var(--elevation-4);
    animation: toast-in var(--dur-base) var(--ease-decelerate);
}

.toast-msg {
    flex: 1;
    min-width: 0;
    margin: 0;
    padding: var(--space-3) 0;
    overflow-wrap: anywhere;
}

.toast-undo {
    display: flex;
    margin: 0;
}

.toast-action {
    min-height: 44px;
    padding: 0 var(--space-3);
    border: 0;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--accent);
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    font-weight: 600;
    white-space: nowrap;
    cursor: pointer;
}

@media (hover: hover) {
    .toast-action:hover {
        background: var(--accent-tint);
    }
}

.toast-action:disabled {
    opacity: 0.6;
    cursor: progress;
}

.toast-close {
    display: inline-flex;
    flex: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
}

@media (hover: hover) {
    .toast-close:hover {
        background: var(--surface-strong);
        color: var(--text-primary);
    }
}

.toast-action:focus-visible,
.toast-close:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: -4px;
}

@media (max-width: 900px) {
    .toast-region {
        left: 16px;
        right: 16px;
        bottom: calc(16px + env(safe-area-inset-bottom, 0px));
        width: auto;
    }
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .toast {
        animation: none;
    }
}