* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background: #0d0d0d;
    color: #fff;
    margin: 0;
    min-height: 100vh;
}

.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* main centralizado, mas sem brigar com o footer */
.login-container {
    background: #1a1a1a;
    padding: 40px;
    width: 350px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(255, 0, 0, 0.4);
    text-align: center;
    margin: auto; /* centraliza dentro do page-wrapper */
}

.login-container {
    background: #1a1a1a;
    padding: 40px;
    width: 350px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(255, 0, 0, 0.4);
    text-align: center;
}

h1 {
    color: #ff0000;
    margin-bottom: 10px;
}

h2 {
    margin-bottom: 25px;
    font-weight: 300;
}

.input-group {
    text-align: left;
    margin-bottom: 20px;
}

label {
    font-size: 14px;
    margin-bottom: 5px;
    display: block;
}

input {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: none;
    outline: none;
    background: #333;
    color: #fff;
}

.btn {
    width: 100%;
    padding: 12px;
    background: #ff0000;
    border: none;
    border-radius: 6px;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}

.btn:hover {
    background: #cc0000;
}

.erro {
    margin-top: 15px;
    color: #ff4d4d;
    font-size: 14px;
}

.modal-cadastro {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* footer sempre embaixo */
.footer {
    margin-top: auto;
    padding: 20px;
    text-align: center;
    color: #ccc;
    font-size: 14px;
    background: #111;
    border-top: 1px solid #333;
}

.footer a {
    color: #ff0000;
    text-decoration: none;
    font-weight: bold;
}

.footer a:hover {
    text-decoration: underline;
}

.footer .sobre {
    margin-top: 8px;
    font-size: 12px;
    color: #888;
}