:root {
    --primary: #0044cc;
    --dark-bg: #050505;
}

body {
    margin: 0; padding: 0; font-family: 'Montserrat', sans-serif;
    background-color: var(--dark-bg);
    color: white; height: 100vh; display: flex; align-items: center; justify-content: center;
    background-image: url('../../img/bg-hero.jpg'); /* Verifique se essa imagem existe */
    background-size: cover; background-position: center;
    position: relative;
}

body::before {
    content:''; position: absolute; inset: 0;
    background: rgba(0,0,0,0.85); z-index: 0;
}

.btn-back {
    position: absolute; top: 30px; left: 30px; z-index: 10;
    color: #aaa; text-decoration: none; display: flex; align-items: center; gap: 10px;
    font-size: 0.9rem; transition: 0.3s;
}
.btn-back:hover { color: var(--primary); }

.login-container { position: relative; z-index: 1; width: 100%; max-width: 400px; padding: 20px; }

.login-box {
    background: rgba(20, 20, 20, 0.95);
    padding: 40px; border-radius: 15px;
    border: 1px solid #333; box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    text-align: center;
}

.logo-area img { height: 60px; margin-bottom: 10px; }
.logo-area h2 { font-size: 1.2rem; letter-spacing: 2px; margin-bottom: 30px; color: #fff; }

.input-group { text-align: left; margin-bottom: 20px; }
.input-group label { display: block; color: #888; font-size: 0.85rem; margin-bottom: 8px; }
.input-group input {
    width: 100%; padding: 12px; background: #0a0a0a; border: 1px solid #333;
    border-radius: 6px; color: white; outline: none; font-size: 1rem; box-sizing: border-box;
    transition: 0.3s;
}
.input-group input:focus { border-color: var(--primary); }

button {
    width: 100%; padding: 15px; background: var(--primary); color: white;
    border: none; border-radius: 6px; font-weight: 700; cursor: pointer;
    font-size: 1rem; transition: 0.3s; margin-top: 10px;
}
button:hover { background: #003399; }
button:disabled { background: #333; cursor: not-allowed; }

.error-msg { color: #ff4444; font-size: 0.9rem; margin-top: 15px; display: none; }