/* ===== POS System Main Styles ===== */

/* === Color Variables === */
:root {
    --primary-color: #28a745;
    --primary-light: #34ce57;
    --primary-dark: #1e7e34;
    --primary-darker: #155724;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

/* === Global Styles === */
body {
    font-family: 'Kanit', 'Sarabun', sans-serif;
    background-color: #f8f9fa;
}

/* === Login Page Styles === */
.login-page {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    max-width: 400px;
    width: 100%;
}

.login-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.login-body {
    padding: 2rem;
}

.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(255, 107, 107, 0.25);
}

.btn-login {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: none;
    border-radius: 10px;
    padding: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.4);
}

.input-group-text {
    background: transparent;
    border: 2px solid #e9ecef;
    border-right: none;
    border-radius: 10px 0 0 10px;
}

.input-group .form-control {
    border-left: none;
    border-radius: 0 10px 10px 0;
}

/* === Navbar Styles === */
.navbar-brand img {
    width: 30px;
    height: 30px;
    margin-right: 10px;
}

.navbar-custom {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
}

/* === Button Styles === */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: none;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(255, 107, 107, 0.3);
}

.btn-info {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: none;
    transition: all 0.3s ease;
}

.btn-info:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(255, 107, 107, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: none;
    transition: all 0.3s ease;
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(255, 107, 107, 0.3);
}

.btn-warning {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border: none;
    transition: all 0.3s ease;
}

.btn-warning:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-darker) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(255, 107, 107, 0.3);
}

/* === Button Group Styles === */
.btn-group .btn {
    border-radius: 0;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: white;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-group .btn:first-child {
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.btn-group .btn:last-child {
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
}

.btn-group .btn:hover {
    background: var(--primary-light);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn-group .btn.active {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.btn-group .btn:focus {
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
}

/* === Product Card States === */
.product-card {
    transition: transform 0.2s, box-shadow 0.3s ease, border-color 0.3s ease;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.product-card.has-items {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.2);
    background: linear-gradient(135deg, #f8fff9 0%, #f0fff4 100%);
}

.product-card.has-items .card-title {
    color: var(--primary-color);
    font-weight: 600;
}

.product-card.has-items .item-total {
    color: var(--primary-dark) !important;
    font-weight: 700;
}

/* === Product Image Styles === */
.product-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.product-image:hover {
    transform: scale(1.05);
}

/* === POS Page Specific Styles === */
.product-card {
    transition: transform 0.2s;
    border-radius: 10px;
    overflow: hidden;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.cart-item {
    border-bottom: 1px solid #eee;
    padding: 10px 0;
}

.quantity-control {
    width: 60px;
}

.receipt-preview {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 15px;
    max-height: 400px;
    overflow-y: auto;
}

.bg-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%) !important;
}

/* === Card Styles === */
.card {
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    border-radius: 10px 10px 0 0 !important;
}

/* === Table Styles === */
.table {
    border-radius: 8px;
    overflow: hidden;
}

.table thead th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    border: none;
}

/* === Modal Styles === */
.modal-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
}

.modal-header .btn-close {
    filter: invert(1);
}

/* === Responsive Design === */
@media (max-width: 768px) {
    .login-card {
        margin: 1rem;
        max-width: 100%;
    }
    
    .navbar-brand img {
        width: 25px;
        height: 25px;
    }
    
    .product-card {
        margin-bottom: 1rem;
    }
}

/* === Animation Effects === */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* === Loading Spinner === */
.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* === Custom Scrollbar === */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}