body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f4f6f8;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
.container {
    background: #24292a;
    padding: 50px 40px;
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
    width: 100%;
    max-width: 400px;
    text-align: center;
}
.logo {
    margin-bottom: 30px;
}
.logo img {
    width: 180px;
}
h2 { color: #ffffff; margin-bottom: 10px; }
p { color: #ffffff; font-size: 14px; margin-bottom: 30px; }
input[type="email"] {
    width: 100%;
    padding: 14px 15px;
    margin-bottom: 20px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-size: 16px;
    box-sizing: border-box;
}
input[type="submit"] {
    width: 100%;
    padding: 14px;
    background-color: #0066cc;
    color: #fff;
    font-size: 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}
input[type="submit"]:hover { background-color: #004a99; }
.footer { text-align: center; margin-top: 25px; font-size: 12px; color: #aaa; }
.footer a { color: #0066cc; text-decoration: none; margin: 0 5px; }
.footer a:hover { text-decoration: underline; }