body {
    margin: 0;
    background: #E3E3E3;
    font-family: "Montserrat", sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    display: flex;
    justify-content: center;
    width: 100%;
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    width: 380px;
    text-align: center;
    box-shadow: 0 3px 12px rgba(0,0,0,0.12);
}

.logo {
    width: 160px;
    margin-bottom: 20px;
}

h2 {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
}

.subtitle {
    margin-top: 4px;
    margin-bottom: 25px;
    color: gray;
}

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

.form-group label {
    font-weight: 600;
    font-size: 14px;
}

input {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1.4px solid #ccc;
    font-size: 15px;
    margin-top: 6px;
    background: #fafafa;
}

input:focus {
    outline: none;
    border-color: #C7A437;
    box-shadow: 0 0 0 2px rgba(199,164,55,0.35);
}

.btn {
    width: 100%;
    padding: 14px;
    background: #C7A437;
    border: none;
    color: white;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: .25s;
}

.btn:hover {
    opacity: .8;
}

.erro {
    margin-top: 15px;
    color: red;
    font-weight: 600;
}