/* Responsive Design */

/* Mobile First Approach */

/* Small devices (phones, 640px and up) */
@media (max-width: 639px) {
    .main-content {
        margin-left: 0;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: repeat(1, minmax(0, 1fr));
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }

    .modal {
        padding: var(--space-6);
    }

    .table-container {
        overflow-x: auto;
    }

    .content-area {
        padding: var(--space-4);
    }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 640px) and (max-width: 1023px) {

    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Large devices (desktops, 1024px and up) */
@media (min-width: 1024px) {
    .container {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
}

/* Hide/Show based on screen size */
@media (max-width: 639px) {
    .hide-mobile {
        display: none !important;
    }
}

@media (min-width: 640px) {
    .show-mobile {
        display: none !important;
    }
}

@media (max-width: 1023px) {
    .hide-tablet {
        display: none !important;
    }
}

@media (min-width: 1024px) {
    .show-tablet {
        display: none !important;
    }
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }

    .sidebar,
    .header,
    .btn,
    .pagination {
        display: none !important;
    }

    .main-content {
        margin-left: 0;
        padding-top: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid var(--gray-200);
    }
}

/* Sidebar Overlay & Mobile Improvements */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 95;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(2px);
}

.sidebar-overlay.show {
    opacity: 1;
    visibility: visible;
}

.sidebar-close {
    display: none;
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: var(--gray-100);
    color: var(--gray-500);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    z-index: 101;
}

.sidebar-close:hover {
    background: var(--gray-200);
    color: var(--danger);
}

@media (max-width: 1023px) {
    .sidebar-close {
        display: flex;
    }
}