:root {
    --primary-color: #ffffff;
    --background-color: #000000;
    --accent-color: #005288;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--background-color);
    color: var(--primary-color);
    line-height: 1.6;
}

/* Header and Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 2rem;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

header.scrolled {
    background-color: rgba(0, 0, 0, 0.8);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.nav-links {
    display: flex;
    justify-content: space-around;
    width: 50%;
}

.nav-links li {
    list-style: none;
}

.nav-links a {
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: 2px;
    font-weight: bold;
    font-size: 14px;
}

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px;
    transition: all 0.3s ease;
}

/* Full Screen Sections */
.full-screen-section {
    height: 100vh;
    display: flex;
    justify-content: flex-end;
    align-items: flex-start;
    flex-direction: column;
    padding: 0 10%;
    background-size: cover;
    background-position: center;
    position: relative;
}

.full-screen-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.content {
    position: relative;
    z-index: 1;
    margin-bottom: 5rem;
}

.full-screen-section h2 {
    font-size: 1rem;
    font-weight: 300;
    margin-bottom: 1rem;
}

.full-screen-section h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 10px 20px;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

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

/* Fade-in effect */
.fade-in {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

/* Footer */
footer {
    background-color: var(--background-color);
    color: var(--primary-color);
    padding: 4rem 10%;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.footer-section {
    flex: 1;
    margin-right: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent-color);
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-links {
        position: absolute;
        right: 0px;
        height: 42vh;
        top: 8vh;
        background-color: var(--background-color);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 50%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
    }

    .nav-links li {
        opacity: 0;
    }

    .burger {
        display: block;
    }

    .nav-active {
        transform: translateX(0%);
    }

    @keyframes navLinkFade {
        from {
            opacity: 0;
            transform: translateX(50px);
        }
        to {
            opacity: 1;
            transform: translateX(0px);
        }
    }

    .toggle .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .toggle .line2 {
        opacity: 0;
    }

    .toggle .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }

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