:root {
    --primary-color: #00aeff;
    --background-color: #0a192f;
    --card-background: #112240;
    --text-color: #ccd6f6;
    --heading-color: #e6f1ff;
    --subtle-text-color: #8892b0;
    --border-color: #233554;
    --hover-color: #00c6ff;
    --font-family: 'Roboto', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* Header */
header {
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    width: 100%;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

nav.container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--heading-color);
}

.logo img {
    width: 40px;
    height: 40px;
    margin-right: 10px;
}

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

/* Hero Section */
.hero-section {
    text-align: center;
}

.hero-section h1 {
    font-size: 3.5rem;
    color: var(--heading-color);
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.coming-soon-banner {
    background: var(--primary-color);
    color: #fff;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    display: inline-block;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

.subscription-form form {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 1rem;
}

.subscription-form input {
    padding: 0.75rem;
    width: 300px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background: var(--card-background);
    color: var(--text-color);
}

.btn {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 700;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background: var(--hover-color);
}

#form-message {
    margin-top: 1rem;
    color: var(--primary-color);
    min-height: 20px;
}

/* Footer */
footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--subtle-text-color);
}

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in-down {
    animation: fadeInDown 1s ease-out forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 1s ease-out 0.5s forwards;
    opacity: 0; /* Start hidden */
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Simple hiding for mobile, can be replaced with a burger menu */
    }

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

    .subscription-form form {
        flex-direction: column;
    }

    .subscription-form input {
        width: 100%;
    }
}