/* Enhanced Stylesheet for High-Tech Design */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    color: #333;
    background: #ffffff;
    line-height: 1.6;
    opacity: 0;
    transition: opacity 1s ease-in-out, background 0.5s ease;
}

body.loaded {
    opacity: 1;
}

header {
    background-color: transparent;
    color: white;
    padding: 1.5rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 10;
}

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

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.nav-links li a:hover {
    color: #ff9900;
}

.hero {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background-image: url('images/hero-background.jpg');
    background-size: cover;
    background-position: center;
    color: #fff;
}

.hero-content {
    max-width: 600px;
}

.cta-button {
    padding: 1rem 2rem;
    background-color: #ff9900;
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: #ff7700;
}

#fluid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle, #003366, #001f3f, #000000);
    animation: fluid-motion 20s infinite alternate ease-in-out;
}

@keyframes fluid-motion {
    0% { transform: scale(1.1) translate(0, 0); }
    100% { transform: scale(1.2) translate(-50px, -50px); }
}

#toggle-dark-mode {
    cursor: pointer;
}

body.dark-mode {
    background: #181818;
    color: #e0e0e0;
}

body.dark-mode .nav-links li a {
    color: #e0e0e0;
}

body.dark-mode .cta-button {
    background-color: #0055cc;
}

body.dark-mode .cta-button:hover {
    background-color: #0033aa;
}