:root {
    --primary: #ff781f;
    --primary-hover: #e66a1a;
    --primary-light: #fff8f4;
    --secondary: #2d3436;
    --text-dark: #2d3436;
    --text-muted: #636e72;
    --white: #ffffff;
    --gray-bg: #f0f2f5;
    --border-color: #eee;
}

body {
    margin: 0;
    background: var(--gray-bg);
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--text-dark);
}

.main-container {
    display: grid;
    grid-template-columns: 1fr 450px;
    min-height: 100vh;
    gap: 25px;
    padding: 25px;
    box-sizing: border-box;
}

/* --- FORM SECTION --- */
.form-section {
    background: var(--white);
    padding: 35px;
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.04);
}

.header-kasir h1 {
    font-size: 28px;
    color: var(--primary);
    margin: 0 0 8px 0;
    font-weight: 800;
}

.header-kasir p {
    color: var(--text-muted);
    margin: 0;
    font-size: 15px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin: 30px 0;
}

/* Radio Button */
.product-card input[type="radio"] {
    display: none;
}

.card-content {
    border: 2px solid var(--border-color);
    padding: 14px 15px;
    border-radius: 18px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--white);
}

/* Efek Hover & Checked */  

.product-card input[type="radio"]:not(:checked) + .card-content:hover {
    border-color: var(--primary-hover);
    transform: translateY(-3px);
}

.product-card input[type="radio"]:checked + .card-content {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 8px 20px rgba(255, 120, 31, 0.15);
    cursor: default;
}

.p-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--secondary);
    display: block;
    line-height: 1.4;
}

.p-price {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    display: block;
}

/* --- INPUT & BUTTON --- */
.qty-section {
    margin-bottom: 25px;
}

.qty-section label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.qty-section input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    font-family: inherit;
    outline: none;
    transition: 0.3s;
    box-sizing: border-box;
}

.qty-section input:focus {
    border-color: var(--primary);
}

.btn-beli {
    width: 100%;
    padding: 16px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 14px;
    font-weight: 800;
    font-size: 16px;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: background 0.3s;
}

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

/* --- RECEIPT SECTION --- */
.receipt-paper {
    background: var(--white);
    padding: 40px;
    border-radius: 24px;
    border-top: 10px solid var(--primary);
    box-shadow: 0 10px 40px rgba(0,0,0,0.06);
    position: sticky;
    top: 25px;
}

.receipt-paper h2 {
    margin: 0 0 15px 0;
    font-size: 20px;
    text-align: center;
}

.receipt-details p {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-muted);
    margin: 12px 0;
}

.receipt-details p strong, .receipt-details p span {
    color: var(--text-dark);
}

.total-bayar {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    margin-top: 25px;
    padding-top: 20px;
    border-top: 2px dashed var(--border-color);
    text-align: right;
}

.btn-reset {
    width: 100%;
    margin-top: 25px;
    padding: 12px;
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    color: var(--text-muted);
}

.btn-reset:hover {
    background: #f8f9fa;
}

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
    .main-container {
        grid-template-columns: 1fr;
    }
    .receipt-paper {
        position: static;
    }
}

@media (max-width: 600px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}