/* ============================================
   ARTIC TEMPLATE - Main Styles
   ============================================ */

:root {
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --navbar-height: 60px;
    --sidebar-bg: #212529;
    --sidebar-hover: #343a40;
}

body {
    background-color: #f8f9fa;
}

.navbar-main {
    height: var(--navbar-height);
    background-color: var(--sidebar-bg);
}

.brand-logo {
    height: 28px;
    width: 28px;
}

.sidebar {
    width: var(--sidebar-width);
    height: calc(100vh - var(--navbar-height));
    background-color: var(--sidebar-bg);
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    z-index: 100;
    transition: transform 0.3s ease, width 0.3s ease;
    display: flex;
    flex-direction: column;
}

.sidebar-nav {
    padding: 1rem 0;
    flex: 1 1 auto;
    overflow-y: auto;
    overflow-x: hidden;
}

/* Scrollbar styling for sidebar */
.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: rgba(255,255,255,0.05);
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 3px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.3);
}

.sidebar-footer {
    padding: 0.75rem 1rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 0.75rem;
    flex-shrink: 0;
}

.sidebar-footer a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: color 0.2s;
}

.sidebar-footer a:hover {
    color: #fff;
}

.sidebar-footer .footer-logo {
    height: 16px;
    width: 16px;
    opacity: 0.8;
}

.sidebar-nav .nav-link {
    color: rgba(255,255,255,0.85);
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 3px solid transparent;
}

.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active {
    color: #fff;
    background-color: var(--sidebar-hover);
    border-left-color: #0d6efd;
}

.sidebar-heading {
    color: rgba(255,255,255,0.55);
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 1rem 1.25rem 0.5rem;
    text-transform: uppercase;
}

.sidebar-nav .collapse .nav-link {
    padding-left: 3rem;
    font-size: 0.9rem;
}

.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--navbar-height);
    padding: 1.5rem;
    min-height: calc(100vh - var(--navbar-height));
    transition: margin-left 0.3s ease;
}

.layout-navbar-only .main-content,
.layout-clean .main-content {
    margin-left: 0;
}

.layout-sidebar-only .main-content {
    margin-top: 0;
}

.layout-sidebar-only .sidebar {
    top: 0;
    height: 100vh;
}

.page-header {
    margin-bottom: 1.5rem;
}

.breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0;
}

pre {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 0.375rem;
    padding: 1rem;
}

@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
}

/* ============================================
   SIDEBAR COLLAPSE TOGGLE BUTTON
   ============================================ */

.sidebar-collapse-btn {
    padding: 0.5rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    flex-shrink: 0;
    justify-content: center;
}

.sidebar-collapse-btn button {
    background: none;
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.6);
    border-radius: 6px;
    width: 100%;
    padding: 0.4rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-collapse-btn button:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.sidebar-collapse-btn button i {
    transition: transform 0.3s ease;
}

/* ============================================
   SIDEBAR COLLAPSED STATE (Desktop Only)
   ============================================ */

@media (min-width: 992px) {
    /* Collapsed sidebar width */
    body.sidebar-collapsed .sidebar {
        width: var(--sidebar-collapsed-width);
    }

    body.sidebar-collapsed .main-content {
        margin-left: var(--sidebar-collapsed-width);
    }

    /* Hide text labels */
    body.sidebar-collapsed .sidebar .sidebar-text {
        display: none;
    }

    /* Section headings become thin separators */
    body.sidebar-collapsed .sidebar .sidebar-heading {
        font-size: 0;
        line-height: 0;
        letter-spacing: 0;
        padding: 0;
        margin: 0.4rem 0.85rem;
        height: 1px;
        background: rgba(255,255,255,0.15);
        text-indent: -9999px;
        overflow: hidden;
    }

    /* Center icons in nav links */
    body.sidebar-collapsed .sidebar .nav-link {
        justify-content: center;
        padding: 0.75rem;
        gap: 0;
    }

    body.sidebar-collapsed .sidebar .nav-link i {
        font-size: 1.15rem;
    }

    /* Sub-menu items also center */
    body.sidebar-collapsed .sidebar .collapse .nav-link {
        padding-left: 0.75rem;
    }

    /* Footer: show only logo */
    body.sidebar-collapsed .sidebar-footer a {
        justify-content: center;
    }

    /* Rotate toggle icon when collapsed */
    body.sidebar-collapsed .sidebar-collapse-btn button i {
        transform: rotate(180deg);
    }

    /* Collapsed toggle button: square shape */
    body.sidebar-collapsed .sidebar-collapse-btn button {
        width: auto;
        padding: 0.4rem 0.6rem;
    }
}