/* Background Image */
.background {
    background-image: url('https://images.unsplash.com/photo-1517336714731-489689fd1ca8');
    background-size: cover;
    background-position: center;
    filter: brightness(0.55);
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* Form Container */
.form-container {
    padding-top: 40px;
    padding-bottom: 80px;
}

/* Glass Form Card */
.form-card {
    background: rgba(255,255,255,0.80);
    backdrop-filter: blur(12px);
    padding: 30px;
    border-radius: 18px;
    max-width: 700px;
    margin: auto;
    animation: fadeIn 0.9s ease;
}

@keyframes fadeIn {
    from { opacity:0; transform: translateY(20px); }
    to { opacity:1; transform: translateY(0); }
}

.laptop-img {
    width: 120px;
    display: block;
    margin: 0 auto 15px;
}

.required {
    font-weight: 600;
}

.required::after {
    content: " *";
    color: red;
    font-weight: bold;
}

.price-output {
    margin-top: 20px;
    font-size: 26px;
    font-weight: bold;
    color: #005eff;
}

/* Loader */
.loader {
    display: none;
    margin: 20px auto;
    border: 5px solid #ddd;
    border-top: 5px solid #0066ff;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    animation: spin 0.9s linear infinite;
}

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