body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f9f9f9;
    color: #333;
}

.container {
    max-width: 600px;
    margin: 50px auto;
    background: #fff;
    padding: 2em;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    font-size: 1.8em;
    margin-bottom: 1em;
}

.logo {
    color: #1da1f2;
    font-weight: bold;
}

.form-box {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

input[type="url"] {
    padding: 10px;
    font-size: 1em;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    background-color: #1da1f2;
    color: white;
    border: none;
    padding: 12px;
    font-size: 1em;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #0d95e8;
}

.link-box {
    text-align: center;
    margin-top: 1.5em;
}

.link-box a {
    color: #1da1f2;
    text-decoration: none;
    font-weight: bold;
}

footer {
    margin-top: 2em;
    font-size: 0.85em;
    color: #777;
    text-align: center;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

table, th, td {
    border: 1px solid #ccc;
}

th, td {
    padding: 8px;
    text-align: center;
}

.back-link {
    display: inline-block;
    margin-bottom: 1em;
    color: #1da1f2;
    text-decoration: none;
}