:root {
    --primary-bg: #050505;
    --accent-blue: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.4);
    --text-main: #ffffff;
    --text-dim: #a1a1aa;
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
    --primary-color: #4CAF50;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.bg-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background:
        radial-gradient(circle at 20% 30%, #001F1F 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, #0D47A1 0%, transparent 40%);
    opacity: 0.6;
    filter: blur(80px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInDown 1s ease-out;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #ffffff, var(--primary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

p.subtitle {
    font-size: 1.25rem;
    opacity: 0.8;
}

.app-showcase {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 2rem;
    padding: 3rem;
    max-width: 800px;
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-item {
    padding: 1rem;
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.cta-button {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 3rem;
    text-decoration: none;
    font-weight: 700;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-top: 2rem;
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

footer {
    margin-top: 6rem;
    padding: 4rem 2rem;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--text-dim);
}

.footer-links {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
}

@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);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .app-showcase {
        padding: 2rem;
    }
}