:root {
    --navy: #001f3f;
    --orange: #ff851b;
    --white: #ffffff;
    --light-gray: #f4f4f4;
    --dark-gray: #333333;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--dark-gray);
    line-height: 1.6;
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--navy);
    color: var(--white);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--orange);
    text-transform: uppercase;
    letter-spacing: 1px;
}

nav ul {
    display: flex;
    list-style: none;
    align-items: center;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

nav ul li a:hover {
    color: var(--orange);
}

.cta-button {
    display: inline-block;
    background-color: var(--orange);
    color: var(--white);
    padding: 10px 25px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    border: 2px solid var(--orange);
}

.cta-button:hover {
    background-color: transparent;
    color: var(--orange);
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
#hero {
    background: linear-gradient(rgba(0, 31, 63, 0.8), rgba(0, 31, 63, 0.8)), url('https://images.unsplash.com/photo-1509391366360-2e959784a276?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    height: 80vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.cta-button.primary {
    font-size: 1.2rem;
    padding: 15px 40px;
}

/* Sections General */
section {
    padding: 80px 0;
}

section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--navy);
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--orange);
    margin: 10px auto 0;
}

/* How It Works */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    text-align: center;
}

.step-card {
    padding: 30px;
    border-radius: 10px;
    background: var(--light-gray);
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.icon-box {
    font-size: 3rem;
    color: var(--orange);
    margin-bottom: 20px;
}

.step-card h3 {
    margin-bottom: 15px;
    color: var(--navy);
}

/* Benefits */
#benefits {
    background-color: var(--navy);
    color: var(--white);
}

#benefits h2 {
    color: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.benefit-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
}

.benefit-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.benefit-card i {
    font-size: 3rem;
    color: var(--orange);
    margin-bottom: 20px;
}

.benefit-card h3 {
    margin-bottom: 15px;
    color: var(--orange);
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.testimonial-card {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    border-top: 5px solid var(--orange);
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.testimonial-card h4 {
    color: var(--navy);
    font-weight: 700;
}

/* Calculator */
#calculator {
    background-color: var(--light-gray);
}

.calculator-box {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--navy);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
}

.calculator-box button {
    width: 100%;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
}

#result {
    margin-top: 30px;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.result-hidden {
    display: none;
}

#savings-amount {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--orange);
    margin: 10px 0;
}

/* Footer */
footer {
    background-color: var(--navy);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.contact-info h3 {
    color: var(--orange);
    margin-bottom: 20px;
}

.contact-info p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.contact-info i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.social-links a {
    color: var(--white);
    font-size: 1.5rem;
    margin-left: 20px;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--orange);
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive */
@media (max-width: 768px) {
    header .container {
        position: relative;
    }

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--navy);
        padding: 20px;
        text-align: center;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    nav.active {
        display: block;
    }

    nav ul {
        flex-direction: column;
    }

    nav ul li {
        margin: 15px 0;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .social-links {
        margin-top: 20px;
    }

    .social-links a {
        margin: 0 10px;
    }
}