body {
    background: #181a1b;
    color: #f1f1f1;
    font-family: "Segoe UI", Arial, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.container {
    background: #23272a;
    padding: 40px 32px;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: #61dafb;
}

p {
    font-size: 1.2rem;
    color: #b0b3b8;
}

.btn {
    margin-top: 24px;
    padding: 12px 32px;
    background: #61dafb;
    color: #181a1b;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
}

.btn:hover {
    background: #21a1f3;
}