/* Import Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Variabel Desain */
:root {
    --sidebar-width: 260px;
    --topbar-height: 70px;
    --border-radius: 0.5rem;
    --shadow-sm: 0 .125rem .25rem rgba(0,0,0,.075);
    --shadow-lg: 0 1rem 3rem rgba(0,0,0,.175);
    --transition-speed: 0.3s;
    
    /* Light Theme */
    --bs-light-bg: #f8f9fa;
    --bs-white: #fff;
    --border-color: #dee2e6;
    --sidebar-bg: #212529;
    --sidebar-text: rgba(255, 255, 255, 0.75);
    --sidebar-text-active: #fff;
    --sidebar-header: rgba(255, 255, 255, 0.5);
}

/* Dark Theme */
[data-bs-theme="dark"] {
    --bs-light-bg: #1a1a1a;
    --bs-white: #2c2c2c;
    --border-color: #444;
    --sidebar-bg: #111;
    --sidebar-text: rgba(255, 255, 255, 0.6);
    --sidebar-text-active: #fff;
    --sidebar-header: rgba(255, 255, 255, 0.4);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bs-light-bg);
    transition: background-color var(--transition-speed);
}

/* --- Sidebar --- */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background-color: var(--sidebar-bg);
    padding: 1rem;
    transition: margin-left var(--transition-speed);
}

.sidebar-brand {
    text-align: center;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.sidebar-brand h3 {
    color: var(--sidebar-text-active);
    font-weight: 700;
}

.sidebar-nav {
    padding-left: 0;
}
.sidebar-nav .nav-item-header {
    padding: 0.75rem 0.5rem;
    font-size: 0.7rem;
    color: var(--sidebar-header);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: .5px;
}
.sidebar-nav .nav-link {
    color: var(--sidebar-text);
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}
.sidebar-nav .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--sidebar-text-active);
}
.sidebar-nav .nav-link.active {
    background-color: var(--bs-primary);
    color: var(--sidebar-text-active);
    font-weight: 500;
}
.sidebar-nav .nav-link .fa-fw {
    width: 20px;
    margin-right: 0.75rem;
    text-align: center;
}

/* --- Main Content --- */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.topbar {
    height: var(--topbar-height);
    background-color: var(--bs-white);
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}
.page-title {
    font-weight: 600;
    margin-bottom: 0;
}
.content-fluid {
    flex-grow: 1;
}

/* General component styling */
.card {
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    .sidebar {
        margin-left: calc(-1 * var(--sidebar-width));
    }
    .sidebar.active {
        margin-left: 0;
    }
    .topbar {
        padding: 0 1rem;
    }
}