* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #0f172a; /* Deep Navy */
    color: #f8fafc;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    text-align: center;
}

.container {
    padding: 2rem;
    max-width: 600px;
}

.logo {
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 2rem;
    color: #38bdf8; /* Sky Blue accent */
}

.logo span {
    color: #fff;
    font-weight: 300;
}

h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

p {
    color: #94a3b8;
    margin-bottom: 2rem;
    line-height: 1.6;
}

form {
    display: flex;
    gap: 10px;
    justify-content: center;
}

input {
    padding: 12px 20px;
    border-radius: 5px;
    border: 1px solid #334155;
    background: #1e293b;
    color: white;
    width: 60%;
}

button {
    padding: 12px 24px;
    background-color: #38bdf8;
    border: none;
    border-radius: 5px;
    color: #0f172a;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background-color: #7dd3fc;
}

.hidden {
    display: none;
}

#message {
    color: #4ade80;
    margin-top: 1rem;
}

@media (max-width: 480px) {
    form {
        flex-direction: column;
    }
    input {
        width: 100%;
    }
}