.login-main-container {
    padding: 40px 20px;
    min-height: calc(100vh - 65px); /* ajusta si tu header/footer ocupan */
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-card {
    background: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
    width: 100%;
    max-width: 420px;
    text-align: center;
    border: 1px solid #eee;
}

.login-logo img {
    max-width: 200px;
    height: auto;
    margin-bottom: 20px;
}

.login-card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #444;
    margin-bottom: 25px;
}

.content-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.content-form input[type="text"],
.content-form input[type="password"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border 0.3s;
}

.content-form input:focus {
    border-color: #79c864;
    outline: none;
    box-shadow: 0 0 0 2px rgba(121, 200, 100, 0.2);
}

#btn_submit {
    background-color: #79c864;
    color: white;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
    margin-top: 5px;
}

#btn_submit:hover {
    background-color: #66b053;
}

.error {
    background-color: #fdecea;
    color: #d9534f;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 15px;
    font-size: 13px;
    border: 1px solid #f5c6cb;
}