/**
 * VenteBus v2 - Responsive CSS
 * Breakpoints: Mobile (<768px), Tablet (768-1024px), Desktop (>1024px)
 */

/* ==============================================
   TABLET (768px - 1024px)
   ============================================== */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 220px;
    }

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

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-actions {
        margin-left: 0;
        margin-top: var(--space-2);
    }
}

/* ==============================================
   MOBILE (<768px)
   ============================================== */
@media (max-width: 768px) {
    :root {
        --header-height: 56px;
    }

    /* Sidebar becomes overlay */
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        box-shadow: var(--shadow-xl);
    }

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

    /* Overlay backdrop */
    .sidebar-backdrop {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: calc(var(--z-fixed) - 1);
    }

    .sidebar-backdrop.show {
        display: block;
    }

    /* Main content full width */
    .main-content {
        margin-left: 0;
    }

    /* Header adjustments */
    .header {
        padding: 0 var(--space-4);
    }

    .header-title {
        font-size: var(--font-size-base);
    }

    .header-meta {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    /* Page content */
    .page-content {
        padding: var(--space-4);
    }

    /* Grid becomes single column */
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    /* KPI cards */
    .kpi-card {
        padding: var(--space-4);
    }

    .kpi-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-lg);
    }

    .kpi-value {
        font-size: var(--font-size-xl);
    }

    /* Cards */
    .card-header {
        padding: var(--space-3) var(--space-4);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    .card-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .card-body {
        padding: var(--space-4);
    }

    /* Filter bar */
    .filter-bar {
        padding: var(--space-4);
    }

    .filter-group {
        width: 100%;
    }

    .filter-group .form-control,
    .filter-group .form-select {
        width: 100%;
    }

    /* Tables */
    .table {
        font-size: var(--font-size-xs);
    }

    .table th,
    .table td {
        padding: var(--space-2) var(--space-3);
    }

    /* Charts */
    .chart-body {
        min-height: 250px;
        padding: var(--space-2);
    }

    .chart-header {
        padding: var(--space-3) var(--space-4);
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    /* Footer */
    .footer {
        flex-direction: column;
        height: auto;
        padding: var(--space-4);
        gap: var(--space-2);
        text-align: center;
    }
}

/* ==============================================
   SMALL MOBILE (<480px)
   ============================================== */
@media (max-width: 480px) {
    .header-breadcrumb {
        display: none;
    }

    .btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--font-size-xs);
    }

    .kpi-card {
        flex-direction: column;
        text-align: center;
    }

    .kpi-icon {
        margin: 0 auto;
    }
}

/* ==============================================
   DESKTOP LARGE (>1400px)
   ============================================== */
@media (min-width: 1400px) {
    .page-content {
        max-width: 1400px;
        margin: 0 auto;
        padding: var(--space-8);
    }
}

/* ==============================================
   PRINT STYLES
   ============================================== */
@media print {
    .sidebar,
    .header,
    .footer,
    .filter-bar,
    .btn,
    .card-actions {
        display: none !important;
    }

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

    .page-content {
        padding: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
        break-inside: avoid;
    }

    .chart-body {
        min-height: 200px;
    }

    body {
        background: white;
        color: black;
    }
}

/* ==============================================
   MOBILE MENU TOGGLE (Hidden by default on desktop)
   ============================================== */
.mobile-menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--gray-700);
    font-size: var(--font-size-xl);
    cursor: pointer;
    border-radius: var(--radius-md);
}

.mobile-menu-toggle:hover {
    background-color: var(--gray-100);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
}

/* ==============================================
   ACCESSIBILITY
   ============================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}