:root {
    --primary: #ffffff;
    --hover: #3c1774;
    --secondary: #4c1d95;
    --text: #ffffff;
    --background: #0f172a;
}

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

body {
    font-family: 'Arial', sans-serif;
    background-color: var(--background);
    color: var(--text);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}
.presentation-link {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background-color: var(--secondary);
    color: var(--text);
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

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


#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.content {
    text-align: center;
    padding: 2rem;
    background-color: rgba(15, 23, 42, 0.8);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 100%;
}

header {
    margin-bottom: 2rem;
}

.logo {
    width: 80px;
    height: 80px;
    stroke: var(--primary);
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

form {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

input[type="email"] {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: none;
    border-radius: 5px 0 0 5px;
    width: 60%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text);
}

button {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    border: none;
    border-radius: 0 5px 5px 0;
    background-color: var(--primary);
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: var(--secondary);
}

footer {
    font-size: 0.9rem;
    color: rgba(226, 232, 240, 0.6);
}

@media (max-width: 768px) {
    .content {
        padding: 1.5rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    p {
        font-size: 1rem;
    }

    form {
        flex-direction: column;
        align-items: center;
    }

    input[type="email"] {
        width: 100%;
        border-radius: 5px;
        margin-bottom: 1rem;
    }

    button {
        width: 100%;
        border-radius: 5px;
    }
}