body {
    background: #f4f6fb;
    font-family: 'Segoe UI', Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.form-container {
    max-width: 400px;
    margin: 60px auto;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 32px 24px 24px 24px;
}

h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 24px;
}

.form-grid {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-row {
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 6px;
    color: #34495e;
    font-size: 1rem;
}

input[type="text"],
input[type="password"] {
    padding: 10px;
    border: 1px solid #dbe2ef;
    border-radius: 5px;
    font-size: 1rem;
    background: #f7f9fc;
    transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus {
    border-color: #3f72af;
    outline: none;
}

.btn {
    background: #3f72af;
    color: #fff;
    border: none;
    border-radius: 5px;
    padding: 12px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 8px;
}

.btn:hover {
    background: #2c3e50;
}

.error-message {
    color: #e74c3c;
    background: #fbeee6;
    border-radius: 5px;
    padding: 8px;
    text-align: center;
    margin-top: 8px;
    font-size: 0.95rem;
    display: none;
}