:root {
    --admin-bg: #f4f6f9;
    --sidebar-bg: #343a40;
    --sidebar-text: #c2c7d0;
    --sidebar-hover: #ffffff;
    --topbar-bg: #ffffff;
    --primary: #0C1FAC;
}

body, html { margin: 0; padding: 0; font-family: 'Segoe UI', sans-serif; background: var(--admin-bg); }

.admin-wrapper { display: flex; min-height: 100vh; }

/* SIDEBAR */
.admin-sidebar {
    width: 250px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    transition: 0.3s;
    display: flex;
    flex-direction: column;
}

.sidebar-logo {
    padding: 20px;
    background: #2b3035;
    display: flex;
    align-items: center;
    gap: 15px;
    color: white;
    font-weight: bold;
}
.sidebar-logo img { height: 40px; background: white; padding: 5px; border-radius: 5px;}

.sidebar-menu { list-style: none; padding: 0; margin: 20px 0; }
.sidebar-menu li a {
    display: flex; align-items: center; gap: 15px;
    color: var(--sidebar-text); text-decoration: none;
    padding: 12px 20px; transition: 0.2s;
}
.sidebar-menu li a:hover { background: rgba(255,255,255,0.1); color: var(--sidebar-hover); }
.sidebar-menu .divisor { height: 1px; background: #4f5962; margin: 15px 20px; }
.text-danger { color: #e74c3c !important; }

/* CONTENIDO PRINCIPAL */
.admin-main { flex: 1; display: flex; flex-direction: column; overflow-x: hidden; }

/* TOPBAR */
.admin-topbar {
    background: var(--topbar-bg);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.btn-toggle { background: none; border: none; font-size: 1.2rem; cursor: pointer; color: #333; }
.user-profile { display: flex; align-items: center; gap: 10px; font-weight: 600; }

/* AREA DE CONTENIDO */
.admin-content { padding: 30px; }

/* EJEMPLO DASHBOARD CARDS */
.dashboard-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin-top: 20px; }
.card { background: white; padding: 20px; border-radius: 10px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); border-left: 5px solid var(--primary); }
.card h3 { margin: 0 0 10px 0; font-size: 1rem; color: #666; }
.card h2 { margin: 0; font-size: 2rem; color: #333; }

/* RESPONSIVE MÓVIL */
@media (max-width: 768px) {
    .admin-sidebar {
        position: fixed;
        left: -250px; /* Oculto por defecto en móvil */
        height: 100vh;
        z-index: 9999;
    }
    .admin-sidebar.active { left: 0; }
}