@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #4F46E5;
    --primary-hover: #4338CA;
    --bg-color: #F3F4F6;
    --card-bg: #FFFFFF;
    --text-dark: #111827;
    --text-light: #6B7280;
    --border-color: #E5E7EB;
    --success-color: #10B981;
    --danger-color: #EF4444;
    --sidebar-bg: #1E293B;
    --sidebar-text: #F8FAFC;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-dark);
    height: 100vh;
    overflow: hidden;
}

/* Master Layout */
.app-layout {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease, min-width 0.3s ease;
    overflow: hidden;
    white-space: nowrap;
}

    .sidebar.collapsed {
        width: 0px;
        min-width: 0px;
    }

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

    .sidebar-header h2 {
        font-size: 20px;
        font-weight: 700;
        letter-spacing: 0.5px;
    }

.nav-links {
    list-style: none;
    padding: 20px 0;
}

    .nav-links li a {
        display: block;
        padding: 16px 24px;
        color: #CBD5E1;
        text-decoration: none;
        font-weight: 500;
        transition: all 0.2s;
    }

        .nav-links li a:hover, .nav-links li a.active {
            background-color: rgba(255,255,255,0.1);
            color: white;
            border-left: 4px solid var(--primary-color);
        }

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
}

.main-content-body {
    flex: 1;
    overflow-y: auto;
    position: relative;
}

.sidebar-toggle-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 10px;
    cursor: pointer;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    transition: background-color 0.2s;
}

    .sidebar-toggle-btn:hover {
        background-color: var(--border-color);
    }

/* POS Specific */
.pos-container {
    display: flex;
    height: 100%;
}

.product-catalog {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
    background-color: var(--bg-color);
}

.catalog-header {
    margin-bottom: 24px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
}

.product-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

    .product-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        border-color: var(--primary-color);
    }

.product-img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 12px;
}

.product-name {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.product-price {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-color);
}

/* Cart Specific */
.cart-section {
    width: 400px;
    background-color: var(--card-bg);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: -4px 0 15px rgba(0, 0, 0, 0.05);
    z-index: 10;
}

.cart-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.cart-items-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-size: 14px;
    font-weight: 600;
}

.cart-item-price {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 4px;
}

.cart-item-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-qty {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

    .btn-qty:hover {
        background: var(--bg-color);
        border-color: var(--text-light);
    }

.btn-remove {
    color: var(--danger-color);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 4px;
}

.cart-summary {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    background-color: #F8FAFC;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-light);
}

.summary-total {
    display: flex;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px dashed var(--border-color);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
}

.btn-checkout {
    width: 100%;
    padding: 16px;
    margin-top: 24px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

    .btn-checkout:hover {
        background-color: var(--primary-hover);
    }

.empty-cart-msg {
    text-align: center;
    color: var(--text-light);
    margin-top: 40px;
    font-size: 14px;
}

/* Status Messages */
.status-message {
    padding: 16px;
    margin-bottom: 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
}

.status-success {
    background-color: #D1FAE5;
    color: #065F46;
    border: 1px solid #34D399;
}

.status-error {
    background-color: #FEE2E2;
    color: #991B1B;
    border: 1px solid #F87171;
}

/* General Pages (Products, Vendors, Receiving) */
.page-container {
    padding: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

    .page-header h1 {
        font-size: 28px;
        color: var(--text-dark);
    }

/* Forms */
.form-panel {
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

    .form-panel h3 {
        margin-bottom: 20px;
        font-size: 18px;
        color: var(--text-dark);
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 10px;
    }

.form-group {
    margin-bottom: 16px;
}

    .form-group label {
        display: block;
        font-size: 14px;
        font-weight: 500;
        margin-bottom: 8px;
        color: var(--text-dark);
    }

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s;
}

    .form-control:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    }

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    font-size: 14px;
}

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

    .btn-primary:hover {
        background: var(--primary-hover);
    }

/* Data Grids */
.data-table-wrapper {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.gridview {
    width: 100%;
    border-collapse: collapse;
}

    .gridview th {
        background-color: #F8FAFC;
        padding: 16px;
        text-align: left;
        font-weight: 600;
        font-size: 14px;
        color: var(--text-light);
        border-bottom: 2px solid var(--border-color);
    }

    .gridview td {
        padding: 16px;
        border-bottom: 1px solid var(--border-color);
        font-size: 14px;
        color: var(--text-dark);
    }

    .gridview tr:hover td {
        background-color: #F8FAFC;
    }

.aspNetHidden {
    display: none;
}