.auth-container {
    max-width: 420px;
    margin: 60px auto;
    padding: 0 20px;
}

.auth-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.auth-card h2 {
    text-align: center;
    margin-bottom: 25px;
    color: #2c3e50;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: #2c3e50;
}

.btn-block {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    background: #2c3e50;
    color: #fff;
    font-weight: 500;
    transition: background 0.2s;
}

.btn-block:hover {
    background: #1a2a38;
}

.auth-error {
    background: #fdecea;
    border: 1px solid #f5c6cb;
    color: #721c24;
    border-radius: 4px;
    padding: 10px 14px;
    margin-bottom: 18px;
    font-size: 0.9rem;
}

.auth-link {
    text-align: center;
    margin-top: 20px;
}

.auth-link a {
    color: #2c3e50;
    font-weight: 500;
}

@media (max-width: 480px) {
    .auth-container {
        margin: 30px auto;
    }
    .auth-card {
        padding: 20px;
    }
}