:root {
    --primary-color: #4f46e5;
    --sidebar-width: 260px;
    --sidebar-bg: #1e1e2f;
    --sidebar-color: #ffffff;
    --sidebar-active-bg: rgba(255, 255, 255, 0.1);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #f4f6f9;
    overflow-x: hidden;
}

/* Sidebar */
#sidebar {
    width: var(--sidebar-width);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    background: var(--sidebar-bg);
    color: var(--sidebar-color);
    transition: all 0.3s;
    z-index: 1000;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

#sidebar .sidebar-header {
    padding: 20px;
    background: rgba(0, 0, 0, 0.1);
    font-size: 1.2rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

#sidebar ul.components {
    padding: 20px 0;
}

#sidebar ul li {
    padding: 0;
    list-style: none;
}

#sidebar ul li a {
    padding: 12px 20px;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: 0.3s;
    border-left: 3px solid transparent;
}

#sidebar ul li a:hover,
#sidebar ul li a.active {
    color: #fff;
    background: var(--sidebar-active-bg);
    border-left-color: var(--primary-color);
}

#sidebar ul li a i {
    font-size: 1.1rem;
    width: 25px;
    text-align: center;
}

/* Content */
#content {
    width: calc(100% - var(--sidebar-width));
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

/* Navbar */
.navbar-custom {
    background: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    padding: 0.8rem 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    #sidebar {
        margin-left: calc(var(--sidebar-width) * -1);
    }

    #sidebar.active {
        margin-left: 0;
    }

    #content {
        width: 100%;
        margin-left: 0;
    }

    #content.active {
        margin-left: var(--sidebar-width);
        /* Push content or overlay? */
    }
}

/* Components */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1.2rem 1.5rem;
    font-weight: 600;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn:focus {
    box-shadow: none;
}

/* Utilities */
.text-muted {
    font-size: 0.9rem;
}