```css
/* Scrap Car Newport - Custom Styles */
/* Color Scheme: Black (#000000) and Amber (#FFC107) */

:root {
    --primary-black: #000000;
    --primary-amber: #FFC107;
    --secondary-dark: #1a1a1a;
    --light-gray: #f8f9fa;
    --text-gray: #666666;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
}

.brand-text {
    margin-left: 0.5rem;
}

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-amber) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    padding: 100px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y="50" font-size="80" opacity="0.05" fill="%23FFC107">🚗</text></svg>') repeat;
    opacity: 0.1;
}

.min-vh-75 {
    min-height: 75vh;
}

.feature-badge {
    background: rgba(255, 193, 7, 0.2);
    color: var(--primary-amber);
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* How It Works Section */
.step-icon {
    width: 100px;
    height: 100px;
    background: var(--primary-amber);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2.5rem;
    color: white;
    transition: transform 0.3s ease;
}

.step-icon:hover {
    transform: scale(1.1);
}

/* Form Section */
.card {
    border-radius: 15px;
    overflow: hidden;
}

.card-header {
    border-bottom: 3px solid var(--primary-amber);
}

.form-label {
    font-weight: 500;
    color: #333;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-amber);
    box-shadow: 0 0 0 0.2rem rgba(255, 193, 7, 0.25);
}

.btn-warning {
    background-color: var(--primary-amber);
    border-color: var(--primary-amber);
    color: #000;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-warning:hover {
    background-color: #ffb300;
    border-color: #ffb300;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 193, 7, 0.3);
}

/* Why Choose Us Section */
.feature-box {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.feature-box:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.feature-box i {
    font-size: 3rem;
    margin-bottom: 15px;
}

/* Contact Section */
.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.contact-info i {
    margin-right: 10px;
    font-size: 1.3rem;
}

/* Footer */
footer {
    border-top: 3px solid var(--primary-amber);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Form Messages */
#form-messages {
    margin-bottom: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0 40px;
        text-align: center;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .feature-badge {
        font-size: 0.9rem;
        padding: 8px 15px;
    }

    .step-icon {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }

    .card-body {
        padding: 20px !important;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 1.75rem;
    }

    .display-4 {
        font-size: 2rem;
    }

    .lead {
        font-size: 1rem;
    }

    .btn-lg {
        padding: 12px 30px;
        font-size: 1rem;
    }
}

/* Loading Spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}

/* Validation Styles */
.was-validated .form-control:valid,
.was-validated .form-select:valid {
    border-color: #28a745;
}

.was-validated .form-control:invalid,
.was-validated .form-select:invalid {
    border-color: #dc3545;
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Accessibility */
.form-control:focus,
.form-select:focus,
.btn:focus {
    outline: 2px solid var(--primary-amber);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    .hero-section,
    #how-it-works,
    #why-us,
    footer {
        display: none;
    }
}
```