/* Layout Administrativo Simples */

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    margin: 0;
    padding: 0;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 250px;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    z-index: 1000;
    overflow-y: auto;
}

.sidebar .navbar-brand-box {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.sidebar .navbar-brand-box h5 {
    color: white;
    margin: 0;
}

.sidebar .nav-link {
    color: rgba(255,255,255,0.8);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: all 0.2s ease;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: white;
    background: rgba(255,255,255,0.1);
}

.sidebar .nav-link i {
    margin-right: 0.75rem;
    width: 20px;
}

.topbar {
    position: fixed;
    top: 0;
    left: 250px;
    right: 0;
    height: 70px;
    background: white;
    border-bottom: 1px solid #e9ecef;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.main-content {
    margin-left: 250px;
    margin-top: 70px;
    padding: 2rem;
    min-height: calc(100vh - 70px);
}

.dropdown-menu {
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.alert {
    border-radius: 8px;
    border: none;
}

.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.mobile-menu-btn {
    display: none;
}

/* Mobile Responsivo */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .topbar {
        left: 0;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-btn {
        display: block;
        background: none;
        border: none;
        color: #495057;
        font-size: 1.2rem;
    }
}