/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow: hidden;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0fdf4;
}

/* Menu lateral */
#menu {
    width: 240px;
    background-color: #111111;
    color: #00FF66;
    float: left;
    height: 100vh;
    padding-top: 20px;
    position: fixed;
    left: 0;
    top: 0;
    overflow-y: auto;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.2);
}

#menu a {
    display: block;
    padding: 12px 20px;
    color: #00FF66;
    text-decoration: none;
    border-bottom: 1px solid rgba(0,255,102,0.1);
    transition: background 0.3s;
}

#menu a:hover {
    background-color: #00ff6650;
}

/* Submenus deslizantes */
.submenu {
    display: none;
    padding-left: 20px;
}

.menu-item.active + .submenu {
    display: block;
}

.menu-item {
    cursor: pointer;
    font-weight: bold;
    padding: 12px 20px;
}

/* Conteúdo */
#conteudo {
    margin-left: 240px;
    height: 100vh;
    overflow: hidden;
    background-color: white;
    padding: 0;
}

/* Iframe dashboard */
iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

/* Logomarca */
.logo-empresa {
    width: 100%;
    padding: 10px;
    text-align: center;
    border-bottom: 1px solid #00ff6620;
}
.logo-empresa img {
    max-width: 160px;
    max-height: 80px;
}

/* Rodapé */
footer {
    text-align: center;
    font-size: 12px;
    color: #666;
    position: absolute;
    bottom: 10px;
    width: 100%;
}