:root {
    --bg-dark: #121212;
    --bg-card: #1e1e1e;
    --primary-color: #ffca28; /* Dourado / Amarelo Tech */
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --sidebar-width: 250px;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-card);
    height: 100vh;
    position: fixed;
    border-right: 1px solid #333;
}

.main-content {
    margin-left: var(--sidebar-width);
    padding: 30px;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid #333;
    color: var(--text-main);
    border-radius: 10px;
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    color: #000;
    font-weight: bold;
}

.btn-primary:hover {
    background-color: #ffd54f;
    color: #000;
}

.form-control {
    background-color: #2d2d2d;
    border: 1px solid #444;
    color: #fff;
}

.form-control:focus {
    background-color: #333;
    color: #fff;
    border-color: var(--primary-color);
    box-shadow: none;
}

.logo-area {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #333;
}

.logo-area img {
    max-width: 150px; /* Ajuste conforme seu logo */
}