:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #2980b9;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --font-family-sans-serif: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --card-border-radius: 0.5rem;
    --button-border-radius: 0.375rem;
    --transition-speed: 0.3s;
}

/* Base styling */
body {
    font-family: var(--font-family-sans-serif);
    /*background-color: #f5f7fa;*/
    color: var(--gray-800);
    line-height: 1.6;
}

/* Typography improvements */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--primary-color);
}

/* Navbar styling */
.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.navbar-brand {
    font-weight: 700;
    color: white !important;
    letter-spacing: 0.5px;
}

.navbar .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    transition: all 0.2s ease;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    margin: 0 0.25rem;
}

    .navbar .nav-link:hover,
    .navbar .nav-link:focus,
    .navbar .nav-link.active {
        color: white !important;
        background-color: rgba(255, 255, 255, 0.1);
    }

/* Card enhancements */
.card {
    border: none;
    border-radius: var(--card-border-radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

    .card:hover {
        box-shadow: 0 6px 25px rgba(0, 0, 0, 0.1);
    }

.card-header {
    background-color: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
}

    .card-header.h3 {
        font-size: 1.5rem;
        display: flex;
        align-items: center;
    }

.card-body {
    padding: 1.5rem;
}

/* Table improvements */
.table {
    margin-bottom: 0;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.02);
}

.table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    color: var(--gray-700);
    padding: 1rem;
}

.table td {
    padding: 1rem;
    vertical-align: middle;
}

.table-dark {
    background-color: var(--primary-color);
}

/* Button enhancements */
.btn {
    font-weight: 600;
    letter-spacing: 0.3px;
    border-radius: var(--button-border-radius);
    transition: all 0.2s ease;
    padding: 0.5rem 1.25rem;
}

.btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

    .btn-primary:hover {
        background-color: #2980b9;
        border-color: #2980b9;
        box-shadow: 0 4px 10px rgba(52, 152, 219, 0.3);
    }

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
}

    .btn-success:hover {
        background-color: #219a52;
        border-color: #219a52;
        box-shadow: 0 4px 10px rgba(39, 174, 96, 0.3);
    }

.btn-warning {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
}

    .btn-warning:hover {
        background-color: #e67e22;
        border-color: #e67e22;
        box-shadow: 0 4px 10px rgba(243, 156, 18, 0.3);
    }

.btn-danger {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

    .btn-danger:hover {
        background-color: #c0392b;
        border-color: #c0392b;
        box-shadow: 0 4px 10px rgba(231, 76, 60, 0.3);
    }

.btn-outline-primary {
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

    .btn-outline-primary:hover {
        background-color: var(--secondary-color);
        border-color: var(--secondary-color);
        box-shadow: 0 4px 10px rgba(52, 152, 219, 0.2);
    }

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.85rem;
}

/* Badge styling */
.badge {
    padding: 0.5em 0.75em;
    font-weight: 600;
    font-size: 75%;
    border-radius: 0.25rem;
}

/* Form control enhancements */
.form-control {
    border-radius: 0.375rem;
    border: 1px solid var(--gray-300);
    padding: 0.65rem 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

    .form-control:focus {
        border-color: var(--secondary-color);
        box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
    }

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

/* Modal improvements */
.modal-content {
    border: none;
    border-radius: var(--card-border-radius);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.modal-header {
    border-bottom: 1px solid var(--gray-200);
    padding: 1.25rem 1.5rem;
}

    .modal-header .modal-title {
        font-weight: 600;
    }

    .modal-header.bg-primary {
        background: linear-gradient(to right, var(--primary-color), var(--secondary-color)) !important;
    }

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--gray-200);
    padding: 1.25rem 1.5rem;
}

/* Pagination styling */
.pagination {
    margin-bottom: 0;
}

    .pagination .page-link {
        color: var(--secondary-color);
        border: 1px solid var(--gray-300);
        padding: 0.5rem 0.85rem;
        transition: all 0.2s ease;
    }

        .pagination .page-link:hover {
            background-color: var(--gray-100);
            color: var(--primary-color);
            z-index: 1;
        }

    .pagination .page-item.active .page-link {
        background-color: var(--secondary-color);
        border-color: var(--secondary-color);
    }

/* Alert improvements */
.alert {
    border: none;
    border-radius: var(--card-border-radius);
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
}

/* Responsive styling for mobile */
@media (max-width: 767.98px) {
    .card-header, .card-body {
        padding: 1rem;
    }

    .table th, .table td {
        padding: 0.75rem;
    }

    .btn-group .btn {
        padding: 0.375rem 0.5rem;
    }

        .btn-group .btn i {
            margin-right: 0;
        }

        .btn-group .btn span {
            display: none;
        }

    /* Improve mobile table experience */
    .table-responsive {
        border-radius: var(--card-border-radius);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Better spacing for mobile forms */
    .form-group {
        margin-bottom: 1rem;
    }
}

/* Action buttons styling */
.btn-group .btn {
    margin-right: 0.25rem;
}

    .btn-group .btn:last-child {
        margin-right: 0;
    }

/* Custom shop dashboard card styling */
.shop-stat-card {
    border-radius: var(--card-border-radius);
    padding: 1.5rem;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .shop-stat-card:hover {
        transform: translateY(-5px);
    }

.bg-gradient-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
}

.bg-gradient-success {
    background: linear-gradient(45deg, var(--success-color), #2ecc71);
}

.bg-gradient-warning {
    background: linear-gradient(45deg, var(--warning-color), #f1c40f);
}

.bg-gradient-info {
    background: linear-gradient(45deg, var(--info-color), #3498db);
}

/* Login page enhancements */
.login-container {
    /*min-height: 100vh;*/
    display: flex;
    /*align-items: center;*/
    justify-content: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 2rem;
}

.login-card {
    border-radius: var(--card-border-radius);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

    .login-card .card-header {
        background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
        color: white;
        text-align: center;
        padding: 2rem 1rem;
    }

    .login-card .card-body {
        padding: 2rem;
    }

/* Custom checkbox styling */
.form-check-input {
    width: 1.15em;
    height: 1.15em;
    margin-top: 0.2em;
    border-radius: 0.25em;
    border: 1px solid var(--gray-400);
}

    .form-check-input:checked {
        background-color: var(--secondary-color);
        border-color: var(--secondary-color);
    }

/* Footer styling */
.footer {
    background-color: var(--light-color);
    color: var(--gray-600);
    padding: 1rem 0;
    text-align: center;
    font-size: 0.875rem;
}