/* Keyboard-only skip link, shared by home and error layouts. */
.skip_link {
    position: fixed;
    z-index: 999;
    inset-block-start: 16px;
    inset-inline-start: 16px;
    padding: 8px 16px;
    color: var(--text);
    background: var(--primary-green);
    border-radius: var(--button-radius-sm);
    transform: translateY(calc(-100% - 3rem));
}

    .skip_link:focus,
    .skip_link:focus-visible {
        transform: translateY(0);
    }

/* PWA UI, installed application and accessibility affordances. */
/**
 * INTERBET PWA — NOTIFICATION UI
 * ================================================
 * Styles for the existing pwa.js markup.
 * Requires global.css to load first.
 * Inherits typography, spacing, colour, radius,
 * shadow, layering, and animation design tokens.
 * Supports data-theme="light" and "dark".
 */

/* Fixed notification region, independent of app layout. */
.pwa_notifications {
    position: fixed;
    z-index: 999;
    inset-inline: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    max-width: 960px;
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    pointer-events: none;
}

    /* Shared update / installation / offline notification. */
    .pwa_notifications .pwa_banner {
        display: flex;
        flex-direction: column;
        gap: 16px;
        width: 100%;
        padding: 16px;
        color: var(--text);
        background-color: var(--surface-1);
        border: 1px solid var(--border-default);
        border-radius: 16px;
        pointer-events: auto;
        animation: all 0.3s ease-out;
    }

        .pwa_notifications .pwa_banner[hidden] {
            display: none !important;
        }

    .pwa_notifications .pwa_banner_copy {
        display: flex;
        flex-direction: column;
        gap: 8px;
        min-width: 0;
    }

    .pwa_notifications .pwa_banner_title {
        display: block;
        font-size: 16px;
        font-weight: 600;
        color: var(--text);
        overflow-wrap: break-word;
    }

    .pwa_notifications .pwa_banner_message {
        margin: 0;
        font-size: 14px;
        font-weight: 400;
        color: var(--text);
        overflow-wrap: break-word;
    }

    .pwa_notifications .pwa_banner_actions {
        display: flex;
        align-items: center;
        justify-content: flex-end;
        flex-wrap: wrap;
        gap: 8px;
    }

    .pwa_notifications .pwa_button {
        position: relative;
        min-height: 48px;
        padding: 0 16px;
        font-size: 16px;
        font-weight: 600;
        border: 1px solid transparent;
        border-radius: var(--button-radius-md);
        transform: var(--button-skew);
        cursor: pointer;
        transition: all 0.3s ease-out;
    }

    /* Secondary action: outlined and legible in both themes. */
    .pwa_notifications .pwa_button_secondary {
        color: var(--text);
        background-color: transparent;
        border-color: var(--border-default);
    }

        .pwa_notifications .pwa_button_secondary:hover:not(:disabled) {
            background-color: var(--surface-2);
        }

    /* Primary action uses the accessible accent and contrast pair. */
    .pwa_notifications .pwa_button_primary {
        color: var(--text);
        background-color: var(--primary-green);
    }

        .pwa_notifications .pwa_button_primary:hover:not(:disabled) {
            background-color: var(--primary-green-hover);
        }

    .pwa_notifications .pwa_button:active:not(:disabled) {
        transform: scale(0.98);
    }

    .pwa_notifications .pwa_button:disabled {
        opacity: 0.5;
        pointer-events: none;
        cursor: not-allowed;
    }

    /* Keep offline feedback aligned with standard notification styling. */
    .pwa_notifications .pwa_banner_offline {
        background-color: var(--surface-1);
        border-color: var(--border-default);
    }

@keyframes pwa-banner-enter {
    from {
        opacity: 0;
        transform: translateY(var(--space-sm));
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    .pwa_notifications {
        inset-inline: 8px;
        bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    }

        .pwa_notifications .pwa_banner {
            border-radius: 16px;
        }

        .pwa_notifications .pwa_banner_actions {
            flex-wrap: nowrap;
        }

        .pwa_notifications .pwa_button {
            flex: 1 1 0;
            min-width: 0;
        }
}

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

    .pwa_notifications .pwa_button {
        transition: none;
    }
}