/* Enhanced responsive layout for handheld devices */
@media (max-width: 767px) {
    .mobile-layout {
        --mobile-header-clearance: clamp(1.25rem, 5vw, 1.75rem);
        --mobile-footer-clearance: clamp(0.875rem, 4vw, 1.5rem);
        --mobile-safe-area-top: calc(var(--mobile-header-height, 4.5rem) + env(safe-area-inset-top));
        --mobile-safe-area-bottom: calc(var(--mobile-footer-height, 5rem) + env(safe-area-inset-bottom));
        --mobile-body-offset-top: calc(var(--mobile-safe-area-top) + var(--mobile-header-clearance));
        --mobile-body-offset-bottom: calc(var(--mobile-safe-area-bottom) + var(--mobile-footer-clearance));
        --mobile-body-padding: clamp(1rem, 4vw, 1.25rem);
        background: var(--app-background-gradient, var(--background-color));
        min-height: 100vh;
    }

    .mobile-layout .sidebar {
        width: var(--sidebar-width);
        max-width: var(--sidebar-width);
        position: fixed;
        height: 100%;
        z-index: 1000;
        box-shadow: 0 22px 45px var(--shadow-light);
        background: var(--surface-gradient, var(--surface-color));
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-right: 1px solid var(--divider-color);
    }

    .mobile-layout .mobile-fixed-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        display: grid;
        grid-template-columns: auto 1fr auto;
        align-items: center;
        gap: 0.75rem;
        padding: calc(0.65rem + env(safe-area-inset-top)) 1rem 0.65rem;
        background: var(--surface-gradient, var(--surface-color));
        border-bottom: 1px solid var(--divider-color);
        box-shadow: 0 20px 42px var(--shadow-light);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        z-index: 1100;
        transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
    }

    .mobile-layout .mobile-fixed-header .page-title {
        text-align: center;
        font-size: 1.05rem;
        font-weight: 700;
        letter-spacing: -0.02em;
        color: var(--text-primary);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-layout .mobile-fixed-header .header-left,
    .mobile-layout .mobile-fixed-header .header-right {
        display: flex;
        align-items: center;
    }

    .mobile-layout .mobile-fixed-header .header-right {
        justify-content: flex-end;
    }

    .mobile-layout .mobile-fixed-header button {
        border: none;
        background: none;
        color: var(--text-primary);
    }

    .mobile-layout .mobile-fixed-header .nav-menu-button,
    .mobile-layout .mobile-fixed-header .nav-back-button,
    .mobile-layout .mobile-fixed-header .page-action-button {
        width: 2.8rem;
        height: 2.8rem;
        border-radius: 1rem;
        display: grid;
        place-items: center;
        background: var(--surface-muted);
        border: 1px solid var(--frosted-border);
        box-shadow: 0 12px 28px var(--shadow-light);
        transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
    }

    .mobile-layout .mobile-fixed-header .nav-menu-button:hover,
    .mobile-layout .mobile-fixed-header .nav-back-button:hover,
    .mobile-layout .mobile-fixed-header .page-action-button:hover {
        background: var(--surface-color);
        border-color: rgba(120, 141, 196, 0.45);
        box-shadow: 0 16px 34px var(--shadow-medium);
    }

    .mobile-layout .mobile-fixed-header .nav-menu-button:active,
    .mobile-layout .mobile-fixed-header .nav-back-button:active,
    .mobile-layout .mobile-fixed-header .page-action-button:active {
        transform: scale(0.96);
        box-shadow: 0 6px 14px var(--shadow-light);
    }

    .mobile-layout .mobile-fixed-header .nav-menu-button:focus-visible,
    .mobile-layout .mobile-fixed-header .nav-back-button:focus-visible,
    .mobile-layout .mobile-fixed-header .page-action-button:focus-visible {
        outline: none;
        box-shadow: 0 0 0 0.25rem var(--focus-ring);
    }

    .mobile-layout .mobile-fixed-header .page-action-button i {
        font-size: 1.1rem;
    }

    .mobile-layout .mobile-fixed-header .user-chip {
        display: flex;
        align-items: center;
        gap: 0.65rem;
        padding: 0.4rem 0.75rem;
        border-radius: 999px;
        background: var(--favorite-surface, linear-gradient(135deg, rgba(33, 83, 200, 0.18), rgba(33, 83, 200, 0.08)));
        color: var(--text-primary);
        border: none;
        font-weight: 600;
        box-shadow: 0 18px 36px var(--shadow-medium);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        max-width: 10rem;
    }

    .mobile-layout .mobile-fixed-header .user-chip:active {
        transform: translateY(1px);
        box-shadow: 0 10px 20px var(--shadow-light);
    }

    .mobile-layout .mobile-fixed-header .user-avatar {
        width: 2.25rem;
        height: 2.25rem;
        border-radius: 0.85rem;
        background: var(--surface-color);
        color: var(--primary-color);
        display: grid;
        place-items: center;
        font-weight: 700;
        font-size: 0.95rem;
        border: 1px solid var(--frosted-border);
        box-shadow: 0 6px 14px rgba(33, 83, 200, 0.12);
    }

    .mobile-layout .mobile-fixed-header .user-name {
        font-size: 0.95rem;
        letter-spacing: -0.01em;
        overflow: hidden;
        white-space: nowrap;
        text-overflow: ellipsis;
    }

    .mobile-layout main {
        margin-top: 0;
        padding-top: var(--mobile-body-offset-top);
        padding-right: 1rem;
        padding-bottom: var(--mobile-body-offset-bottom);
        padding-left: 1rem;
        background: transparent;
        min-height: max(0px, calc(100vh - var(--mobile-body-offset-top) - var(--mobile-body-offset-bottom)));
        box-sizing: border-box;
        scroll-padding-top: var(--mobile-body-offset-top);
        scroll-padding-bottom: var(--mobile-body-offset-bottom);
    }

    @supports (height: 100dvh) {
        .mobile-layout main {
            min-height: max(0px, calc(100dvh - var(--mobile-body-offset-top) - var(--mobile-body-offset-bottom)));
        }
    }

    .mobile-layout .content {
        scroll-margin-top: var(--mobile-body-offset-top);
        padding-top: var(--mobile-body-padding);
        padding-bottom: max(var(--mobile-body-padding), var(--mobile-footer-clearance, 1rem));
        min-height: max(0px, calc(100vh - var(--mobile-body-offset-top) - var(--mobile-body-offset-bottom)));
        box-sizing: border-box;
    }

    @supports (height: 100dvh) {
        .mobile-layout .content {
            min-height: max(0px, calc(100dvh - var(--mobile-body-offset-top) - var(--mobile-body-offset-bottom)));
        }
    }

    .mobile-layout .mobile-fixed-footer {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 0.35rem 1rem calc(0.35rem + env(safe-area-inset-bottom));
        background: var(--surface-gradient, var(--surface-color));
        border-top: 1px solid var(--divider-color);
        box-shadow: 0 -18px 42px var(--shadow-light);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        z-index: 1100;
        transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
    }

    .mobile-layout .favorites-nav {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
        gap: 0.65rem;
        align-items: stretch;
    }

    .mobile-layout .favorite-button {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 0.45rem;
        border: none;
        background: var(--favorite-chip-background, rgba(15, 23, 42, 0.04));
        color: var(--text-primary);
        font-weight: 600;
        padding: 0.35rem 0.35rem;
        border-radius: 1.1rem;
        transition: transform 0.2s ease, color 0.2s ease, box-shadow 0.3s ease, background-color 0.3s ease;
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(148, 163, 184, 0.18);
        backdrop-filter: blur(6px);
        -webkit-backdrop-filter: blur(6px);
    }

    .mobile-layout .favorite-button:active {
        transform: translateY(1px);
    }

    .mobile-layout .favorite-button:focus-visible,
    .mobile-layout .favorite-button:hover {
        color: var(--favorite-icon-color, var(--primary-color));
        transform: translateY(-1px);
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 8px 18px rgba(15, 23, 42, 0.12);
    }

    .mobile-layout .favorite-button:focus-visible {
        outline: none;
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 0 0 3px rgba(255, 255, 255, 0.24), 0 0 0 4px var(--favorite-border, rgba(33, 83, 200, 0.24));
    }

    .mobile-layout .favorite-button .favorite-icon {
        position: relative;
        width: 2.75rem;
        height: 2.75rem;
        border-radius: 1rem;
        display: grid;
        place-items: center;
        background: var(--favorite-background, var(--favorite-surface, rgba(33, 83, 200, 0.18)));
        color: var(--favorite-icon-color, var(--primary-color));
        box-shadow: 0 12px 30px var(--favorite-icon-shadow, rgba(15, 23, 42, 0.14));
        font-size: 1.1rem;
        transition: box-shadow 0.3s ease, transform 0.3s ease;
        border: 1px solid var(--favorite-border, rgba(148, 163, 184, 0.28));
        overflow: hidden;
        isolation: isolate;
    }

    .mobile-layout .favorite-button .favorite-icon::before {
        content: "";
        position: absolute;
        inset: 0;
        border-radius: inherit;
        background: radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.55), transparent 65%);
        opacity: 0.6;
        transition: opacity 0.35s ease, transform 0.35s ease;
        pointer-events: none;
    }

    .mobile-layout .favorite-button .favorite-icon::after {
        content: "";
        position: absolute;
        inset: -40%;
        border-radius: 50%;
        background: radial-gradient(circle, var(--favorite-highlight, rgba(255, 255, 255, 0.35)) 0%, transparent 60%);
        opacity: 0;
        transform: scale(0.6);
        transition: opacity 0.4s ease, transform 0.4s ease;
        pointer-events: none;
    }

    .mobile-layout .favorite-button:focus-visible .favorite-icon,
    .mobile-layout .favorite-button:hover .favorite-icon {
        transform: translateY(-3px);
        box-shadow: 0 18px 36px var(--favorite-icon-shadow, rgba(15, 23, 42, 0.2));
    }

    .mobile-layout .favorite-button:focus-visible .favorite-icon::before,
    .mobile-layout .favorite-button:hover .favorite-icon::before {
        opacity: 0.85;
        transform: scale(1.05);
    }

    .mobile-layout .favorite-button:focus-visible .favorite-icon::after,
    .mobile-layout .favorite-button:hover .favorite-icon::after {
        opacity: 0.9;
        transform: scale(1);
    }

    .mobile-layout .favorite-button .favorite-icon i {
        position: relative;
        z-index: 1;
        filter: drop-shadow(0 8px 18px var(--favorite-icon-glow, rgba(15, 23, 42, 0.28)));
    }

    .mobile-layout .favorite-button .favorite-label {
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 0.12em;
        color: var(--text-secondary);
        text-align: center;
        transition: color 0.3s ease;
    }

    .mobile-layout .favorite-button:focus-visible .favorite-label,
    .mobile-layout .favorite-button:hover .favorite-label {
        color: var(--favorite-icon-color, var(--primary-color));
    }

    body.nav-open .mobile-layout .mobile-fixed-header,
    body.nav-open .mobile-layout .mobile-fixed-footer {
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
    }

    body.nav-open .mobile-layout .mobile-fixed-header {
        transform: translateY(-12px);
    }

    body.nav-open .mobile-layout .mobile-fixed-footer {
        transform: translateY(12px);
    }
}

/* Responsive page container */
.responsive-page {
    --responsive-page-max-width: 56rem;
    --responsive-page-padding-inline: clamp(1.25rem, 4vw, 1.75rem);
    padding-inline: var(--responsive-page-padding-inline);
    width: 100%;
}

.responsive-page__inner {
    width: min(100%, var(--responsive-page-max-width));
    margin: 0 auto;
    padding-block: clamp(1.5rem, 3vw, 2rem);
}

.responsive-page[data-layout="fluid"] .responsive-page__inner {
    width: 100%;
    max-width: none;
}

.responsive-page[data-layout="expanded"] {
    --responsive-page-max-width: 68rem;
}

.responsive-page[data-layout="wide"] {
    --responsive-page-max-width: 74rem;
}

@media (min-width: 768px) {
    .responsive-page {
        --responsive-page-max-width: 64rem;
        --responsive-page-padding-inline: clamp(2rem, 5vw, 3rem);
    }

    .responsive-page__inner {
        padding-block: clamp(2rem, 3vw, 2.5rem);
    }
}

@media (min-width: 1200px) {
    .responsive-page {
        --responsive-page-max-width: 76rem;
    }

    .responsive-page__inner {
        padding-block: 2.75rem;
    }
}

/* Organization tree responsive adjustments */
.organization-node .toggle-icon {
    cursor: pointer;
}

@media (max-width: 576px) {
    .organization-node .node-content {
        flex-direction: column;
        align-items: flex-start;
    }
    .organization-node .node-actions {
        width: 100%;
        justify-content: flex-start;
        margin-top: 0.25rem;
    }
}