/* Responsive Design - Mobile App First Approach (Indigo & Violet Theme) */

/* Mobile App Top Header */
.mobile-app-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 58px;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    color: white;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
    z-index: 1200;
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.2);
}

.mobile-menu-toggle-btn {
    background: transparent;
    border: none;
    color: white;
    font-size: 26px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    transition: background 0.2s;
}

.mobile-menu-toggle-btn:active {
    background: rgba(255,255,255,0.2);
}

.mobile-app-title {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mobile-profile-link {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.mobile-header-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.9);
}

/* Mobile Bottom Navigation Bar */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: calc(62px + env(safe-area-inset-bottom, 0px));
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    border-top: 1px solid #e2e8f0;
    z-index: 1200;
    justify-content: space-around;
    align-items: center;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    box-shadow: 0 -4px 16px rgba(15, 23, 42, 0.06);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    height: 100%;
    color: #64748b;
    text-decoration: none;
    background: transparent;
    border: none;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font-family, inherit);
    padding: 6px 0;
    transition: color 0.2s ease, transform 0.15s ease;
    cursor: pointer;
}

.bottom-nav-item i {
    font-size: 20px;
    margin-bottom: 3px;
}

.bottom-nav-item.active {
    color: #4f46e5;
    font-weight: 800;
}

.bottom-nav-item.active i {
    transform: translateY(-2px);
}

.bottom-nav-item:active {
    transform: scale(0.92);
}

/* Sidebar Close Button */
.sidebar-close-btn {
    display: none;
    background: transparent;
    border: none;
    color: white;
    font-size: 22px;
    cursor: pointer;
}

/* Mobile Floating Action Button (FAB) */
.fab-button {
    display: none;
    position: fixed;
    bottom: calc(78px + env(safe-area-inset-bottom, 0px));
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    color: white;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
    z-index: 1100;
    text-decoration: none;
    border: none;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.fab-button:active {
    transform: scale(0.9);
}

/* Mobile Viewport Styles (< 769px) */
@media (max-width: 768px) {
    .mobile-app-header {
        display: flex;
    }
    
    .mobile-bottom-nav {
        display: flex;
    }
    
    .fab-button {
        display: flex;
    }

    .sidebar-close-btn {
        display: block;
    }
    
    .sidebar-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    
    /* Sidebar Drawer */
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        width: 280px;
        z-index: 1500;
        top: 0;
        bottom: 0;
        height: 100vh;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(15, 23, 42, 0.65);
        backdrop-filter: blur(4px);
        z-index: 1400;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    
    .sidebar-overlay.active {
        display: block;
        opacity: 1;
    }
    
    /* Main Content Spacing */
    .main-content {
        margin-left: 0 !important;
        padding-top: 58px !important;
        padding-bottom: calc(78px + env(safe-area-inset-bottom, 0px)) !important;
        min-height: 100vh;
    }
    
    /* Content Header */
    .content-header {
        padding: 16px;
        background: white;
        border-bottom: 1px solid #f1f5f9;
    }
    
    .content-header h1 {
        font-size: 20px;
        font-weight: 800;
    }
    
    /* Content Body */
    .content-body {
        padding: 16px;
    }
    
    /* Card Component */
    .card {
        padding: 18px;
        margin-bottom: 16px;
        border-radius: 16px;
        box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
        border: 1px solid #e2e8f0;
    }
    
    .card-header {
        flex-direction: column;
        gap: 12px;
        align-items: stretch !important;
        margin-bottom: 16px;
        padding-bottom: 12px;
    }
    
    .card-header h2 {
        font-size: 18px;
    }

    .card-header .btn {
        width: 100%;
    }
    
    /* Stats Grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 14px;
        margin-bottom: 20px;
    }
    
    .stat-card {
        padding: 20px;
        border-radius: 16px;
    }
    
    .stat-card .stat-value {
        font-size: 30px;
    }
    
    /* Form Layouts */
    .form-row {
        grid-template-columns: 1fr !important;
        gap: 12px;
    }
    
    .form-group {
        margin-bottom: 14px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* Prevents auto-zoom on iOS */
        padding: 12px 14px;
        border-radius: 8px;
    }
    
    /* Buttons */
    .btn {
        padding: 12px 18px;
        font-size: 14px;
        border-radius: 8px;
        width: 100%;
        margin-bottom: 8px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 44px;
    }

    .btn-group .btn {
        width: auto;
        margin-bottom: 0;
    }
    
    .btn-small {
        padding: 8px 12px;
        font-size: 12px;
        width: auto;
        margin: 0;
        min-height: 38px;
    }
    
    /* Vendor Cards Grid on Mobile */
    .vendors-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    
    .vendor-card {
        padding: 18px;
        border-radius: 14px;
    }
    
    .vendor-photo img {
        width: 90px;
        height: 90px;
    }
    
    .vendor-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
    }

    .vendor-actions .btn {
        flex: 1;
        min-width: 70px;
        margin-bottom: 0;
    }
    
    /* Search Forms */
    .search-form {
        flex-direction: column;
        width: 100%;
        gap: 8px;
    }
    
    .search-form input {
        width: 100%;
        min-width: 0;
        margin-bottom: 0;
    }
    
    /* Pagination */
    .pagination {
        flex-wrap: wrap;
        justify-content: center;
        gap: 4px;
    }
    
    .pagination-btn {
        padding: 8px 12px;
        font-size: 13px;
        min-height: 40px;
        display: inline-flex;
        align-items: center;
    }
    
    /* Profile Section */
    .profile-section {
        grid-template-columns: 1fr !important;
    }
    
    /* Modal */
    .modal-content {
        margin: 15px auto;
        padding: 24px;
        max-width: calc(100% - 24px);
        border-radius: 16px;
    }

    /* Mobile Responsive Cards for Data Tables */
    .mobile-card-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .mobile-card-item {
        background: #ffffff;
        border: 1px solid #e2e8f0;
        border-radius: 14px;
        padding: 16px;
        box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .mobile-card-header {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .mobile-card-avatar {
        width: 52px;
        height: 52px;
        border-radius: 50%;
        object-fit: cover;
        border: 2.5px solid #4f46e5;
        flex-shrink: 0;
    }

    .mobile-card-title-group {
        flex: 1;
        min-width: 0;
    }

    .mobile-card-title {
        font-size: 16px;
        font-weight: 700;
        color: #0f172a;
        margin: 0 0 2px 0;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .mobile-card-subtitle {
        font-size: 13px;
        color: #4f46e5;
        margin: 0;
        font-weight: 600;
    }

    .mobile-card-body {
        font-size: 13px;
        color: #475569;
        display: flex;
        flex-direction: column;
        gap: 6px;
        padding-top: 8px;
        border-top: 1px dashed #e2e8f0;
    }

    .mobile-card-info-row {
        display: flex;
        align-items: center;
        gap: 8px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .mobile-card-info-row i {
        color: #4f46e5;
        width: 16px;
        text-align: center;
    }

    .mobile-card-actions {
        display: flex;
        align-items: center;
        gap: 6px;
        padding-top: 10px;
        border-top: 1px solid #f1f5f9;
        flex-wrap: wrap;
    }

    .mobile-card-actions .btn {
        flex: 1;
        min-width: 60px;
        padding: 8px 10px;
        font-size: 12px;
        margin-bottom: 0;
        min-height: 38px;
    }

    /* Hide standard desktop tables on phone screens if responsive cards enabled */
    .desktop-table-view {
        display: none !important;
    }
}

/* Tablet Styles (769px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }
    
    .main-content {
        margin-left: 240px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .vendors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }

    .mobile-card-list {
        display: none;
    }
}

@media (min-width: 769px) {
    .mobile-card-list {
        display: none !important;
    }
}

/* Small Mobile Viewports (< 480px) */
@media (max-width: 480px) {
    .content-header h1 {
        font-size: 18px;
    }
    
    .card-header h2 {
        font-size: 16px;
    }
    
    .stat-card .stat-value {
        font-size: 24px;
    }

    .mobile-card-actions .btn {
        font-size: 11px;
        padding: 6px 8px;
    }
}

/* Touch-friendly Accessibility Defaults */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .nav-item,
    .bottom-nav-item {
        min-height: 44px;
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .mobile-app-header,
    .mobile-bottom-nav,
    .fab-button,
    .btn,
    .table-actions {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }
}