body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #111315;
    color: white;
}

.auth-card {
    max-width: 420px;
    margin: 80px auto;
    background: #15181f;
    padding: 32px;
    border-radius: 16px;
}

.auth-card h2 {
    text-align: center;
    margin-bottom: 24px;
}

input {
    width: 100%;
    padding: 14px;
    margin-bottom: 14px;
    background: #222733;
    color: white;
    border: 0;
    border-radius: 8px;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 14px;
    background: #2196f3;
    color: white;
    border: 0;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
}

a {
    color: #00bfa5;
    display: inline-block;
    margin: 8px 0;
    text-decoration: none;
}

.error {
    color: #ff6b6b;
    text-align: center;
}

.dashboard {
    max-width: 700px;
    margin: 60px auto;
    background: #15181f;
    padding: 32px;
    border-radius: 16px;
}