* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #f5f7fb;
    color: #172033;
    font-family: Arial, sans-serif;
}

.login-wrapper {
    max-width: 420px;
    margin: 90px auto;
    padding: 32px;
    background: #ffffff;
    border-radius: 14px;
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.08);
}

.login-wrapper h2 {
    margin-top: 0;
}

.login-wrapper input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
}

.login-wrapper label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

.form-group {
    margin-bottom: 16px;
}

.login-error {
    background: #fee2e2;
    color: #991b1b;
    padding: 12px;
    margin-bottom: 16px;
    border-radius: 8px;
}

.btn {
    display: inline-block;
    border: 0;
    border-radius: 8px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 700;
    padding: 11px 16px;
    text-align: center;
}

.btn-success {
    background: #16a34a;
    color: #ffffff;
}

.btn-block {
    width: 100%;
}