:root {
    --primary-color: #001f5c;
    --secondary-color: #f0f0f0;
    --text-color: #333333;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--secondary-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Back Button */
.back-btn {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    z-index: 9999;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    border: 2px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.back-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 31, 92, 0.4);
    background: linear-gradient(135deg, var(--primary-color), #000f3d);
}

.back-btn::before {
    content: '←';
    font-size: 1.2rem;
}

/* Brand Palette */
.brand-palette {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
}

.palette-toggle {
    width: 60px;
    height: 60px;
    background: rgba(0, 31, 92, 0.2);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.palette-toggle:hover {
    background: rgba(0, 31, 92, 0.4);
    transform: scale(1.1);
}

.palette-swatches {
    display: none;
    position: absolute;
    bottom: 70px;
    right: 0;
    background: white;
    border-radius: 15px;
    padding: 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    gap: 0.8rem;
    flex-direction: column;
    animation: slideUp 0.3s ease;
}

.palette-swatches.active {
    display: flex;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}



.swatch {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 3px solid transparent;
}

.swatch:hover {
    transform: scale(1.15);
    border-color: #333;
}

/* Navigation Bar */
.navbar {
    background-color: var(--primary-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.nav-menu a:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color) 100%);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.contact-cta {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: white;
    color: var(--primary-color);
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.contact-cta:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

/* Services Section */
.services {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.services h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-item {
    background-color: white;
    padding: 2rem;
    border-radius: 5px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* About Section */
.about {
    background-color: white;
    padding: 4rem 2rem;
    text-align: center;
}

.about h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.about p {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-color);
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 3rem 2rem;
}

.footer-content {
    margin-bottom: 2rem;
}

.footer-content h3 {
    margin-bottom: 1rem;
}

.footer-content p {
    margin-bottom: 0.5rem;
}

.footer-content a {
    color: white;
    text-decoration: none;
}

.footer-content a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

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

    .services h2 {
        font-size: 2rem;
    }

    .back-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}