/* ==========================================================================
   SARALBILL PREMIUM SAAS SIDEBAR DESIGN
   Brand Colors: Red #D91F3D | Dark #263238 | Muted #667085 | Tint #FFF3F5
   ========================================================================== */

:root {
    --sb-brand-red: #D91F3D;
    --sb-brand-red-dark: #B8142E;
    --sb-brand-active-bg: #FFF3F5;
    --sb-brand-hover-bg: #FFF7F8;
    --sb-brand-text-dark: #263238;
    --sb-brand-text-muted: #667085;
    --sb-brand-border: #EEF0F3;
    --sb-sidebar-width: 260px;
    --sb-sidebar-collapsed-width: 76px;
}

/* Sidebar Outer Container */
#sidebar {
    width: var(--sb-sidebar-width) !important;
    min-width: var(--sb-sidebar-width) !important;
    max-width: var(--sb-sidebar-width) !important;
    height: 100vh;
    position: sticky;
    top: 0;
    background: #FFFFFF !important;
    color: var(--sb-brand-text-dark) !important;
    font-family: 'Inter', system-ui, -apple-system, sans-serif !important;
    z-index: 1030;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.03) !important;
    border-right: 1px solid var(--sb-brand-border) !important;
    overflow-y: auto;
    overflow-x: hidden;
    transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
    scrollbar-width: thin;
    scrollbar-color: #E2E8F0 transparent;
}

#sidebar::-webkit-scrollbar {
    width: 4px;
}
#sidebar::-webkit-scrollbar-track {
    background: transparent;
}
#sidebar::-webkit-scrollbar-thumb {
    background: #E2E8F0;
    border-radius: 4px;
}
#sidebar::-webkit-scrollbar-thumb:hover {
    background: #CBD5E1;
}

/* Header Area */
#sidebar .sidebar-header {
    padding: 16px 16px !important;
    background: #FFFFFF !important;
    border-bottom: 1px solid var(--sb-brand-border) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    min-height: 72px;
}

#sidebar .sidebar-brand-wrapper {
    display: flex;
    align-items: center;
    text-decoration: none !important;
    overflow: hidden;
}

#sidebar .brand-logo-img {
    max-height: 38px;
    width: auto;
    display: block;
}

#sidebar .brand-subtext {
    font-family: 'Outfit', 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 600;
    color: var(--sb-brand-text-muted);
    letter-spacing: 0.2px;
    margin-top: 2px;
    white-space: nowrap;
}

.sidebar-toggle-btn,
#sidebar .sidebar-toggle-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--sb-brand-red, #D91F3D) !important;
    border: 1px solid var(--sb-brand-red-dark, #B8142E) !important;
    color: #FFFFFF !important;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 13px;
    flex-shrink: 0;
    padding: 0;
    box-shadow: 0 2px 8px rgba(217, 31, 61, 0.35);
}

.sidebar-toggle-btn:hover,
#sidebar .sidebar-toggle-btn:hover {
    background: var(--sb-brand-red-dark, #B8142E) !important;
    color: #FFFFFF !important;
    box-shadow: 0 4px 12px rgba(217, 31, 61, 0.45);
    transform: scale(1.08);
}

/* Section Headings */
#sidebar ul.components {
    padding: 0px 10px 24px 10px !important;
}

#sidebar .sidebar-section-header {
    padding: 14px 12px 6px 12px;
    margin-top: 6px;
    list-style: none;
}

#sidebar .sidebar-section-header span {
    font-size: 10.5px;
    font-weight: 700;
    color: #94A3B8;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    display: block;
}

/* Main Navigation Item Links */
#sidebar ul li {
    margin-bottom: 3px !important;
    list-style: none;
}

#sidebar ul li a {
    padding: 10px 14px !important;
    min-height: 44px;
    font-size: 14px !important;
    display: flex !important;
    align-items: center !important;
    color: var(--sb-brand-text-dark) !important;
    text-decoration: none !important;
    border-radius: 10px !important;
    font-weight: 500 !important;
    white-space: nowrap !important;
    transition: all 0.18s ease !important;
    position: relative !important;
    background: transparent;
}

#sidebar ul li a i:not(.chevron-icon) {
    margin-right: 12px !important;
    width: 22px !important;
    text-align: center !important;
    font-size: 1.05rem !important;
    color: #334155 !important;
    transition: all 0.18s ease !important;
}

/* Primary Operational Modules: Red Icons by Default */
#sidebar ul li a[href="#clients"] i,
#sidebar ul li a[data-bs-target="#clientsSubmenu"] i,
#sidebar ul li a[href="#vendors"] i,
#sidebar ul li a[data-bs-target="#vendorsSubmenu"] i,
#sidebar ul li a[href="#items"] i,
#sidebar ul li a[data-bs-target="#itemsSubmenu"] i,
#sidebar ul li a[href="#sales"] i,
#sidebar ul li a[data-bs-target="#salesSubmenu"] i,
#sidebar ul li a[href="#purchases"] i,
#sidebar ul li a[data-bs-target="#purchasesSubmenu"] i,
#sidebar ul li a[href="#expenses"] i,
#sidebar ul li a[data-bs-target="#expensesSubmenu"] i,
#sidebar ul li a[href="#payments"] i,
#sidebar ul li a[data-bs-target="#paymentsSubmenu"] i,
#sidebar ul li a[href="#reportsSubmenu"] i,
#sidebar ul li a[data-bs-target="#reportsSubmenu"] i {
    color: var(--sb-brand-red) !important;
}

/* Utility / Settings Items & Dashboard: Dark Slate Icons by default */
#sidebar ul li a[href="#dashboard"] i,
#sidebar ul li a[href="#home"] i,
#sidebar ul li a[href="#company-setup"] i,
#sidebar ul li a[href="#contact"] i,
#sidebar ul li a[href="#policy"] i,
#sidebar ul li a[href="#subscriptions"] i,
#sidebar ul li a[href="#sub-admins"] i,
#sidebar ul li a[data-bs-target="#subAdminsSubmenu"] i,
#sidebar ul li a[href="#settings"] i {
    color: #334155 !important;
}

/* Logout Button: Red Icon & Text */
#sidebar .logout-link,
#sidebar .logout-link i {
    color: #EF4444 !important;
}

#sidebar .chevron-icon,
#sidebar .dash-chevron-icon {
    font-size: 0.75rem !important;
    color: #94A3B8 !important;
    transition: transform 0.25s ease, color 0.18s ease !important;
    margin-left: auto !important;
}

/* Hover State */
#sidebar ul li a:hover {
    color: var(--sb-brand-red) !important;
    background: var(--sb-brand-hover-bg) !important;
    transform: none !important;
}

#sidebar ul li a:hover i:not(.chevron-icon) {
    color: var(--sb-brand-red) !important;
}

/* Active State (Main Menu) */
#sidebar ul li a.active,
#sidebar ul li a.dash-active {
    color: var(--sb-brand-red) !important;
    background: var(--sb-brand-active-bg) !important;
    font-weight: 600 !important;
}

#sidebar ul li a.active i:not(.chevron-icon),
#sidebar ul li a.dash-active i:not(.chevron-icon) {
    color: var(--sb-brand-red) !important;
}

/* Active Left Indicator Bar */
#sidebar ul li a.active::before,
#sidebar ul li a.dash-active::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 7px;
    bottom: 7px;
    width: 4px;
    border-radius: 0 4px 4px 0;
    background: var(--sb-brand-red);
}

/* Expanded Submenus (Tree Connector Line Style) */
#sidebar ul.collapse {
    border-left: none !important;
    margin-left: 0 !important;
    padding-left: 0 !important;
    position: relative;
    margin-top: 4px;
    margin-bottom: 4px;
}

/* Vertical Connecting Line */
#sidebar ul.collapse::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 6px;
    bottom: 12px;
    width: 1.5px;
    background: #EEF0F3;
    border-radius: 2px;
}

#sidebar ul.collapse li {
    position: relative;
    padding-left: 36px;
}

/* Submenu Tree Node Dot (Matching reference screenshot) */
#sidebar ul.collapse li::before {
    content: '';
    position: absolute;
    left: 21.5px;
    top: 50%;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #CBD5E1;
    transform: translateY(-50%);
    transition: all 0.2s ease;
}

#sidebar ul.collapse li:hover::before,
#sidebar ul.collapse li:has(a.active)::before,
#sidebar ul.collapse li:has(a.dash-active)::before {
    background: var(--sb-brand-red);
    box-shadow: 0 0 0 3px rgba(217, 31, 61, 0.18);
}

#sidebar ul.collapse li a {
    font-size: 13px !important;
    color: var(--sb-brand-text-muted) !important;
    padding: 8px 12px !important;
    min-height: 38px;
    border-radius: 8px !important;
    font-weight: 500 !important;
}

#sidebar ul.collapse li a i {
    font-size: 0.85rem !important;
    color: var(--sb-brand-text-muted) !important;
    margin-right: 8px !important;
    width: 18px !important;
}

#sidebar ul.collapse li a:hover {
    color: var(--sb-brand-red) !important;
    background: var(--sb-brand-hover-bg) !important;
}

#sidebar ul.collapse li a:hover i {
    color: var(--sb-brand-red) !important;
}

/* Submenu Active State */
#sidebar ul.collapse li a.active,
#sidebar ul.collapse li a.dash-active {
    color: var(--sb-brand-red) !important;
    background: var(--sb-brand-active-bg) !important;
    font-weight: 600 !important;
}

#sidebar ul.collapse li a.active i,
#sidebar ul.collapse li a.dash-active i {
    color: var(--sb-brand-red) !important;
}

#sidebar ul.collapse li a.active::before,
#sidebar ul.collapse li a.dash-active::before {
    display: none; /* Hide main left bar inside nested submenus */
}

/* Active Node Dot on Tree Line */
#sidebar ul.collapse li:has(a.active)::before,
#sidebar ul.collapse li:has(a.dash-active)::before {
    background: var(--sb-brand-red);
}

/* Smart Purchase AI Special Styling (Matching screenshot crop) */
#sidebar .smart-purchase-link {
    background: #FFF5F7 !important;
    color: #D91F3D !important;
    font-weight: 600 !important;
    border: 1px solid rgba(217, 31, 61, 0.22) !important;
    border-radius: 12px !important;
}

#sidebar .smart-purchase-link i {
    color: #D91F3D !important; /* Red Icon matching reference screenshot */
}

#sidebar .smart-purchase-link span:not(.sidebar-ai-badge) {
    color: #D91F3D !important; /* Red text matching reference screenshot */
    font-weight: 600 !important;
}

#sidebar .sidebar-ai-badge {
    background: #D91F3D !important;
    color: #FFFFFF !important;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 8px;
    margin-left: auto;
    letter-spacing: 0.5px;
    line-height: 1.2;
    box-shadow: 0 2px 8px rgba(217, 31, 61, 0.3);
}

/* Logout Button */
#sidebar .logout-link {
    background: #FEF2F2 !important;
    color: #EF4444 !important;
    margin-top: 14px !important;
    border-radius: 10px !important;
}

#sidebar .logout-link i {
    color: #EF4444 !important;
}

#sidebar .logout-link:hover {
    background: #FEE2E2 !important;
    color: #DC2626 !important;
}

/* ==========================================================================
   COLLAPSED SIDEBAR STATE
   ========================================================================== */
#sidebar.collapsed {
    width: var(--sb-sidebar-collapsed-width) !important;
    min-width: var(--sb-sidebar-collapsed-width) !important;
    max-width: var(--sb-sidebar-collapsed-width) !important;
}

#sidebar.collapsed .sidebar-header {
    padding: 12px 6px !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 8px !important;
    min-height: 80px;
}

#sidebar.collapsed .sidebar-brand-wrapper {
    justify-content: center !important;
    width: 100% !important;
}

#sidebar.collapsed .logo-full,
#sidebar.collapsed .brand-subtext,
#sidebar.collapsed .sidebar-section-header,
#sidebar.collapsed ul li a span,
#sidebar.collapsed .chevron-icon,
#sidebar.collapsed .dash-chevron-icon,
#sidebar.collapsed .sidebar-ai-badge,
#sidebar.collapsed ul.collapse {
    display: none !important;
}

#sidebar.collapsed .logo-collapsed {
    display: block !important;
    max-height: 36px !important;
    width: auto !important;
    margin: 0 auto !important;
}

#sidebar.collapsed .sidebar-toggle-btn {
    display: flex !important;
    width: 32px !important;
    height: 32px !important;
    font-size: 12px !important;
    margin: 0 auto !important;
    background: var(--sb-brand-red, #D91F3D) !important;
    border: 1px solid var(--sb-brand-red-dark, #B8142E) !important;
    color: #FFFFFF !important;
    box-shadow: 0 2px 8px rgba(217, 31, 61, 0.35) !important;
}

#sidebar.collapsed .sidebar-toggle-btn:hover {
    background: var(--sb-brand-red-dark, #B8142E) !important;
    color: #FFFFFF !important;
    box-shadow: 0 4px 12px rgba(217, 31, 61, 0.45) !important;
    transform: scale(1.08) !important;
}

#sidebar.collapsed ul.components {
    padding: 12px 6px !important;
}

#sidebar.collapsed ul li a {
    justify-content: center !important;
    padding: 12px 0 !important;
    margin: 4px 4px !important;
}

#sidebar.collapsed ul li a i:not(.chevron-icon) {
    margin-right: 0 !important;
    font-size: 1.2rem !important;
}

#sidebar.collapsed ul li a.active::before,
#sidebar.collapsed ul li a.dash-active::before {
    left: 0;
    top: 8px;
    bottom: 8px;
}

/* Desktop Main Content Shift when Collapsed */
#content {
    transition: margin-left 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* ==========================================================================
   MOBILE OFF-CANVAS DRAWER
   ========================================================================== */
@media (max-width: 768px) {
    #sidebar {
        position: fixed !important;
        top: 0;
        left: -280px;
        width: 270px !important;
        min-width: 270px !important;
        max-width: 270px !important;
        height: 100% !important;
        z-index: 1055 !important;
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15) !important;
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
        display: flex !important;
        flex-direction: column !important;
        overflow-y: auto !important;
        background: #FFFFFF !important;
    }

    #sidebar.sb-reveal-drawer {
        left: 0 !important;
    }
}