@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --secondary: #10B981;
    --dark: #111827;
    --dark-surface: #1F2937;
    --light: #F9FAFB;
    --gray: #6B7280;
    --border: #E5E7EB;
    --glass: rgba(255, 255, 255, 0.7);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--light);
    color: var(--dark);
    margin: 0;
    padding: 0;
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--dark);
    color: white;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    position: fixed;
    height: 100vh;
    box-sizing: border-box;
    right: 0;
}

.sidebar-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: #D1D5DB;
    text-decoration: none;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-link:hover, .nav-link.active {
    background-color: var(--primary);
    color: white;
    transform: translateX(-5px); /* RTL hover */
}

/* Main Content */
.main-content {
    flex: 1;
    margin-right: 260px;
    padding: 2rem;
    background-color: var(--light);
    min-height: 100vh;
    box-sizing: border-box;
}

/* Topbar */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1rem 2rem;
    background: var(--glass);
    backdrop-filter: blur(10px);
    border-radius: 1rem;
    box-shadow: var(--shadow);
}

.page-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
}

/* Cards */
.card {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
    font-family: 'Outfit', sans-serif;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

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

.btn-secondary:hover {
    filter: brightness(1.1);
}

/* Tables */
.table-container {
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem 1.5rem;
    text-align: right;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: #F3F4F6;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

tr:hover {
    background-color: #F9FAFB;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-surface);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-family: 'Outfit', sans-serif;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* POS Specific */
.pos-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    height: calc(100vh - 120px);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    overflow-y: auto;
    padding-left: 0.5rem;
}

.product-card {
    background: white;
    border-radius: 1rem;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

.product-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
}

.cart-panel {
    background: white;
    border-radius: 1rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.cart-summary {
    padding: 1.5rem;
    background: var(--dark-surface);
    color: white;
    border-radius: 0 0 1rem 1rem;
}

/* Responsive Design / Mobile */
@media (max-width: 768px) {
    body {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: static;
        padding: 1rem;
    }
    
    .sidebar-logo {
        margin-bottom: 1rem;
        justify-content: center;
    }
    
    nav {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        justify-content: center;
    }
    
    .nav-link {
        margin-bottom: 0;
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .main-content {
        margin-right: 0;
        padding: 1rem;
        min-height: auto;
    }
    
    .topbar {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
        padding: 1rem;
    }
    
    .pos-grid {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    table {
        min-width: 600px; /* Ensure table scrolls on small screens instead of squishing */
    }
}