.login-container {
    max-width: 400px;
    margin: 60px auto;
    padding: 30px 25px;
    background-color: #f3fbf3;
    border: 1px solid #155923;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 51, 102, 0.15);
    text-align: center;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-container h1 {
    margin-bottom: 20px;
    color: #155923;
    font-size: 1.8rem;
}

.login-container label {
    display: block;
    text-align: left;
    margin: 10px 0 5px;
    font-weight: 600;
}

.login-container input[type="text"],
.login-container input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 15px;
    border: 1px solid #155923;
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
    background-color: #fff;
}

.login-container .btn {
    width: 100%;
    padding: 12px 0;
    background-color: #2ABF48;
    color: #fff;
    font-size: 1rem;
    font-weight: bold;
    border: 1px solid #155923;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.25s ease, transform 0.2s ease;
}

.login-container .btn:hover {
    background-color: #28a33f;
    transform: translateY(-2px);
}

.error-message {
    color: #c00;
    margin-bottom: 15px;
    font-size: 0.95rem;
}