/* Container Utama */
.kh-container {
    display: flex;
    flex-direction: row;
    gap: 40px;
    background-color: #ffffff;
    border-radius: 16px;
    padding: 40px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    box-shadow: 0 10px 40px rgba(27, 117, 187, 0.08); /* Blue shadow */
    color: #1f2937;
    max-width: 1100px;
    margin: 40px auto;
    box-sizing: border-box;
    border: 1px solid #e6f0f9; /* Light blue border */
}

/* Kolom Kiri & Kanan */
.kh-form-column, .kh-result-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.kh-title {
    color: #135891; /* Dark blue */
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    border-bottom: 2px solid #e6f0f9;
    padding-bottom: 15px;
    letter-spacing: -0.02em;
}

/* Form Groups */
.kh-form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.kh-form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #4b5563;
}

.kh-container .kh-input {
    padding: 12px 16px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.95rem;
    color: #111827 !important; /* Paksa warna hitam */
    background-color: #ffffff !important; /* Paksa background putih */
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    width: 100%;
    box-sizing: border-box;
    font-family: inherit;
    opacity: 1 !important;
    -webkit-text-fill-color: #111827 !important;
}

.kh-container select.kh-input {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23111827%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: right 16px top 50% !important;
    background-size: 10px auto !important;
    padding-right: 40px !important;
}

.kh-container .kh-input:hover {
    border-color: #d1d5db;
}

.kh-container .kh-input:focus {
    outline: none;
    border-color: #1b75bb !important;
    box-shadow: 0 0 0 4px rgba(27, 117, 187, 0.1) !important;
}

/* Option List Color Fix */
.kh-container .kh-input option {
    color: #111827 !important;
    background-color: #ffffff !important;
}

/* Tombol Hitung */
.kh-btn {
    background: linear-gradient(135deg, #2080c9 0%, #135891 100%); /* Blue gradient */
    color: #ffffff !important;
    border: none;
    padding: 14px 24px;
    border-radius: 8px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 15px;
    box-shadow: 0 4px 12px rgba(27, 117, 187, 0.25);
    letter-spacing: 0.01em;
}

.kh-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(27, 117, 187, 0.35);
}

.kh-btn:active {
    transform: translateY(0);
}

/* Result Items */
.kh-result-column {
    background-color: #f4f9fd; /* Light blue bg */
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #e6f0f9;
}

.kh-result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px dashed #cce0f0;
    font-size: 0.95rem;
    color: #4b5563;
}

.kh-result-item span:last-child {
    font-weight: 700;
    color: #1b75bb; /* Brand blue */
}

.kh-divider {
    height: 1px;
    background-color: #cce0f0;
    margin: 20px 0;
}

.kh-result-total {
    display: flex;
    justify-content: space-between;
    font-size: 1.1rem;
    font-weight: 700;
    color: #374151;
    margin-bottom: 15px;
}

.kh-result-grandtotal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.4rem;
    font-weight: 800;
    color: #ffffff;
    background: linear-gradient(135deg, #1b75bb 0%, #135891 100%);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(19, 88, 145, 0.2);
}

.kh-result-grandtotal span:last-child {
    color: #ffffff;
}

/* Responsif Mobile */
@media (max-width: 768px) {
    .kh-container {
        flex-direction: column;
        padding: 25px;
        gap: 30px;
    }
    
    .kh-form-column, .kh-result-column {
        width: 100%;
    }
    
    .kh-result-grandtotal {
        font-size: 1.2rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}