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

body {
    background: #0b0b0b;
    color: #f5f5f5;
    font-family: Arial, Helvetica, sans-serif;
    min-height: 100vh;
    font-size: 15px;
}

.container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

.card {
    background: #151515;
    border: 1px solid #292929;
    border-radius: 10px;
    padding: 24px;
    margin-bottom: 18px;
}

h1, h2, h3 {
    color: #fff;
    font-weight: 600;
    margin-bottom: 18px;
}

p {
    color: #aaa;
    line-height: 1.6;
}

input, select, textarea {
    width: 100%;
    background: #101010;
    color: #fff;
    border: 1px solid #333;
    border-radius: 7px;
    padding: 12px 14px;
    margin: 8px 0 16px;
    outline: none;
    font-size: 14px;
}

input:focus, select:focus, textarea:focus {
    border-color: #777;
}

button, .btn {
    display: inline-block;
    background: #f2f2f2;
    color: #111;
    border: none;
    border-radius: 7px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}

button:hover, .btn:hover {
    background: #d8d8d8;
}

a {
    color: #ddd;
    text-decoration: none;
}

a:hover {
    color: #fff;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 13px;
    text-align: left;
    border-bottom: 1px solid #292929;
}

th {
    color: #999;
    font-weight: 500;
}

td {
    color: #eee;
}

.status {
    color: #aaa;
    font-size: 13px;
}

@media (max-width: 600px) {
    .container {
        padding: 24px 14px;
    }

    .card {
        padding: 18px;
    }

    table {
        font-size: 12px;
    }
}