/*
 * Premarathna Construction Rental Management System
 * Global Design System Stylesheet (Phase 01 - UI/UX Foundation)
 * Finalized Application Shell & Component Library Style Rules
 */

/* ==========================================================================
   1. Design Tokens & Variables
   ========================================================================== */
:root {
    /* Color Palette */
    --pc-primary: #D97706;
    /* Refined Warm Amber */
    --pc-primary-hover: #B45309;
    --pc-primary-light: #FEF3C7;
    --pc-primary-rgb: 217, 119, 6;

    --pc-secondary: #475569;
    /* Slate Gray */
    --pc-secondary-hover: #334155;
    --pc-secondary-light: #F1F5F9;

    --pc-dark: #0F172A;
    /* Deep Slate/Navy */
    --pc-dark-hover: #1E293B;
    --pc-light: #F8FAFC;
    /* Clean light grey background */
    --pc-card-bg: #FFFFFF;
    --pc-border-color: #E2E8F0;

    /* Typography Colors */
    --pc-text-main: #1E293B;
    --pc-text-muted: #64748B;
    --pc-text-light: #94A3B8;

    /* Status Colors */
    --pc-success: #10B981;
    /* Emerald */
    --pc-success-light: #D1FAE5;
    --pc-success-text: #065F46;

    --pc-warning: #F59E0B;
    /* Amber */
    --pc-warning-light: #FEF3C7;
    --pc-warning-text: #92400E;

    --pc-danger: #EF4444;
    /* Rose */
    --pc-danger-light: #FEE2E2;
    --pc-danger-text: #991B1B;

    --pc-info: #3B82F6;
    /* Sky Blue */
    --pc-info-light: #DBEAFE;
    --pc-info-text: #1E40AF;

    /* Border Radii */
    --pc-radius-sm: 6px;
    --pc-radius-md: 10px;
    --pc-radius-lg: 16px;
    --pc-radius-pill: 50rem;

    /* Shadows */
    --pc-shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
    --pc-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --pc-shadow-md: 0 10px 15px -3px rgba(15, 23, 42, 0.05), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
    --pc-shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.08);

    /* Sidebar Config */
    --pc-sidebar-width: 260px;
    --pc-header-height: 70px;
    --pc-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   2. General, Typography & Accessibility Resets
   ========================================================================== */
body {
    font-family: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--pc-light);
    color: var(--pc-text-main);
    min-height: 100vh;
    overflow-x: hidden;
    letter-spacing: -0.01em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    color: var(--pc-dark);
    letter-spacing: -0.02em;
}

a {
    color: var(--pc-primary);
    text-decoration: none;
    transition: var(--pc-transition);
}

a:hover {
    color: var(--pc-primary-hover);
}

/* Accessibility Focus Indicators */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--pc-primary) !important;
    outline-offset: 2px !important;
    box-shadow: none !important;
}

/* ==========================================================================
   3. Main Layout Structure
   ========================================================================== */
.app-wrapper {
    display: flex;
    min-height: 100vh;
    width: 100vw;
    position: relative;
}

/* Sidebar Styling */
.app-sidebar {
    width: var(--pc-sidebar-width);
    background-color: var(--pc-dark);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: var(--pc-transition);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-brand {
    height: var(--pc-header-height);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-brand-text {
    font-size: 1.15rem;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-brand-text span {
    color: var(--pc-primary);
}

.sidebar-menu-wrapper {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem 0.75rem;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.menu-header {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--pc-text-light);
    padding: 0.75rem 1rem 0.35rem;
    letter-spacing: 0.05em;
    opacity: 0.5;
}

.menu-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.8rem 1rem;
    color: #94A3B8;
    font-size: 0.925rem;
    font-weight: 600;
    border-radius: var(--pc-radius-md);
    transition: var(--pc-transition);
    border: none;
    background: none;
    text-align: left;
    width: 100%;
}

.menu-link i {
    font-size: 1.2rem;
    transition: var(--pc-transition);
}

.menu-link:hover {
    color: #FFFFFF;
    background-color: rgba(255, 255, 255, 0.04);
}

.menu-item.active>.menu-link {
    color: #FFFFFF;
    background-color: var(--pc-primary);
}

.menu-item.active>.menu-link i {
    color: #FFFFFF;
}

/* Nested Sidebar Submenus */
.sidebar-submenu {
    padding-left: 1.5rem;
    margin-top: 0.25rem;
    margin-bottom: 0.5rem;
}

.submenu-link {
    display: block;
    padding: 0.5rem 1rem;
    color: #94A3B8;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--pc-radius-sm);
    transition: var(--pc-transition);
}

.submenu-link:hover,
.submenu-link.active {
    color: #FFFFFF;
    background-color: rgba(255, 255, 255, 0.04);
}

/* Submenu Chevron Animations */
.menu-link .submenu-chevron {
    transition: transform 0.2s ease;
    font-size: 0.8rem;
}

.menu-link.collapsed .submenu-chevron {
    transform: rotate(0deg);
}

.menu-link:not(.collapsed) .submenu-chevron {
    transform: rotate(180deg);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Main Content Area */
.main-container {
    flex: 1;
    margin-left: var(--pc-sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
    /* Prevents flex items from breaking layout */
    transition: var(--pc-transition);
}

/* Header Styling */
.app-header {
    height: var(--pc-header-height);
    background-color: var(--pc-card-bg);
    border-bottom: 1px solid var(--pc-border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 1020;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.02);
}

/* Page Content Wrapper */
.content-body {
    flex: 1;
    padding: 2rem;
}

/* Footer Styling */
.app-footer {
    background-color: var(--pc-card-bg);
    border-top: 1px solid var(--pc-border-color);
    padding: 1.25rem 2rem;
    font-size: 0.875rem;
    color: var(--pc-text-muted);
}

/* ==========================================================================
   4. Responsive Grid & Sidebar Collapsing
   ========================================================================== */
@media (max-width: 991.98px) {
    .app-sidebar {
        transform: translateX(-100%);
    }

    .main-container {
        margin-left: 0;
    }

    /* When sidebar is opened via class on body */
    body.sidebar-open .app-sidebar {
        transform: translateX(0);
    }

    body.sidebar-open .sidebar-backdrop {
        display: block;
    }

    .app-header {
        padding: 0 1.25rem;
    }

    .content-body {
        padding: 1.25rem;
    }
}

/* Sidebar Backdrop overlay for mobile */
.sidebar-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    z-index: 1030;
    transition: var(--pc-transition);
}

/* Desktop Collapse (Toggle-able via sidebar-collapsed class on body) */
body.sidebar-collapsed .app-sidebar {
    width: 80px;
}

body.sidebar-collapsed .sidebar-brand-text {
    justify-content: center;
}

body.sidebar-collapsed .sidebar-brand-text span:not(.brand-logo-icon) {
    display: none;
}

body.sidebar-collapsed .menu-link {
    justify-content: center;
    padding: 0.8rem;
}

body.sidebar-collapsed .menu-link span:not(.menu-icon) {
    display: none;
}

body.sidebar-collapsed .menu-link .submenu-chevron {
    display: none !important;
}

body.sidebar-collapsed .sidebar-submenu {
    display: none !important;
}

body.sidebar-collapsed .menu-header {
    display: none;
}

body.sidebar-collapsed .main-container {
    margin-left: 80px;
}

/* ==========================================================================
   5. Design System Elements (Custom Overrides)
   ========================================================================== */

/* Cards */
.card {
    background-color: var(--pc-card-bg);
    border: 1px solid var(--pc-border-color);
    border-radius: var(--pc-radius-md);
    box-shadow: var(--pc-shadow);
    transition: var(--pc-transition);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: var(--pc-shadow-md);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--pc-border-color);
    padding: 1.25rem 1.5rem;
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background-color: var(--pc-secondary-light);
    border-top: 1px solid var(--pc-border-color);
    padding: 1rem 1.5rem;
}

/* Buttons */
.btn {
    font-weight: 600;
    padding: 0.6rem 1.25rem;
    border-radius: var(--pc-radius-md);
    font-size: 0.925rem;
    transition: var(--pc-transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-lg {
    padding: 0.75rem 1.75rem;
    font-size: 1rem;
    border-radius: var(--pc-radius-lg);
}

.btn-sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.825rem;
    border-radius: var(--pc-radius-sm);
}

/* Button Variants */
.btn-primary {
    background-color: var(--pc-primary);
    border-color: var(--pc-primary);
    color: #FFFFFF;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background-color: var(--pc-primary-hover) !important;
    border-color: var(--pc-primary-hover) !important;
    color: #FFFFFF !important;
    box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.15) !important;
}

.btn-secondary {
    background-color: var(--pc-secondary);
    border-color: var(--pc-secondary);
    color: #FFFFFF;
}

.btn-secondary:hover,
.btn-secondary:focus,
.btn-secondary:active {
    background-color: var(--pc-secondary-hover) !important;
    border-color: var(--pc-secondary-hover) !important;
    color: #FFFFFF !important;
    box-shadow: 0 0 0 4px rgba(71, 85, 105, 0.15) !important;
}

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

.btn-outline-primary:hover,
.btn-outline-primary:focus,
.btn-outline-primary:active {
    background-color: var(--pc-primary) !important;
    border-color: var(--pc-primary) !important;
    color: #FFFFFF !important;
}

.btn-light {
    background-color: var(--pc-secondary-light);
    border-color: var(--pc-border-color);
    color: var(--pc-text-main);
}

.btn-light:hover {
    background-color: var(--pc-border-color);
    color: var(--pc-dark);
}

.btn-success {
    background-color: var(--pc-success);
    border-color: var(--pc-success);
    color: #FFFFFF;
}

.btn-success:hover,
.btn-success:focus {
    background-color: var(--pc-success-text) !important;
    border-color: var(--pc-success-text) !important;
    color: #FFFFFF !important;
}

.btn-danger {
    background-color: var(--pc-danger);
    border-color: var(--pc-danger);
    color: #FFFFFF;
}

.btn-danger:hover,
.btn-danger:focus {
    background-color: var(--pc-danger-text) !important;
    border-color: var(--pc-danger-text) !important;
    color: #FFFFFF !important;
}

.btn-warning {
    background-color: var(--pc-warning);
    border-color: var(--pc-warning);
    color: var(--pc-warning-text);
}

.btn-warning:hover,
.btn-warning:focus {
    background-color: var(--pc-warning-text) !important;
    border-color: var(--pc-warning-text) !important;
    color: #FFFFFF !important;
}

/* Forms & Inputs */
.form-label {
    font-weight: 600;
    color: var(--pc-dark);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.form-control,
.form-select {
    padding: 0.65rem 1rem;
    border: 1px solid var(--pc-border-color);
    border-radius: var(--pc-radius-md);
    background-color: #FFFFFF;
    color: var(--pc-text-main);
    font-size: 0.95rem;
    transition: var(--pc-transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--pc-primary);
    box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.1);
    color: var(--pc-dark);
}

.form-control::placeholder {
    color: var(--pc-text-light);
}

/* Floating labels */
.form-floating>.form-control:focus~label,
.form-floating>.form-control:not(:placeholder-shown)~label,
.form-floating>.form-select~label {
    color: var(--pc-primary);
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

/* Custom Checkbox & Radio */
.form-check-input {
    width: 1.15em;
    height: 1.15em;
    margin-top: 0.2em;
    border: 1px solid var(--pc-border-color);
    transition: var(--pc-transition);
}

.form-check-input:focus {
    box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.1);
    border-color: var(--pc-primary);
}

.form-check-input:checked {
    background-color: var(--pc-primary);
    border-color: var(--pc-primary);
}

/* iOS Style Switch overrides */
.form-switch .form-check-input {
    width: 2em;
    border-radius: var(--pc-radius-pill);
    background-position: left center;
}

.form-switch .form-check-input:checked {
    background-position: right center;
    background-color: var(--pc-primary);
    border-color: var(--pc-primary);
}

/* Input group icons */
.input-group-text {
    background-color: var(--pc-secondary-light);
    border: 1px solid var(--pc-border-color);
    color: var(--pc-text-muted);
    padding: 0.65rem 1rem;
    border-radius: var(--pc-radius-md);
}

/* Tables */
.table-responsive {
    border-radius: var(--pc-radius-md);
    border: 1px solid var(--pc-border-color);
    background: #FFFFFF;
}

.table {
    margin-bottom: 0;
    vertical-align: middle;
}

.table th {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--pc-text-muted);
    background-color: var(--pc-secondary-light);
    border-bottom: 1px solid var(--pc-border-color);
    padding: 1rem 1.25rem;
}

.table td {
    padding: 1rem 1.25rem;
    font-size: 0.925rem;
    color: var(--pc-text-main);
    border-bottom: 1px solid var(--pc-border-color);
}

.table-hover tbody tr:hover {
    background-color: rgba(248, 250, 252, 0.75);
}

/* Sticky Header Table Option */
.table-sticky th {
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: inset 0 -1px 0 var(--pc-border-color);
}

/* Badges */
.badge {
    padding: 0.45em 0.75em;
    font-weight: 600;
    font-size: 0.75rem;
    border-radius: var(--pc-radius-pill);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.badge-success {
    background-color: var(--pc-success-light);
    color: var(--pc-success-text);
}

.badge-danger {
    background-color: var(--pc-danger-light);
    color: var(--pc-danger-text);
}

.badge-warning {
    background-color: var(--pc-warning-light);
    color: var(--pc-warning-text);
}

.badge-info {
    background-color: var(--pc-info-light);
    color: var(--pc-info-text);
}

.badge-neutral {
    background-color: var(--pc-secondary-light);
    color: var(--pc-secondary);
}

/* Soft Color Utility Helpers (Design System Mapped) */
.bg-primary-light {
    background-color: var(--pc-primary-light) !important;
}

.bg-success-light {
    background-color: var(--pc-success-light) !important;
}

.bg-warning-light {
    background-color: var(--pc-warning-light) !important;
}

.bg-danger-light {
    background-color: var(--pc-danger-light) !important;
}

.bg-info-light {
    background-color: var(--pc-info-light) !important;
}

.text-primary {
    color: var(--pc-primary) !important;
}

.text-success {
    color: var(--pc-success) !important;
}

.text-warning {
    color: var(--pc-warning) !important;
}

.text-danger {
    color: var(--pc-danger) !important;
}

.text-info {
    color: var(--pc-info) !important;
}

/* Pagination */
.pagination {
    margin-bottom: 0;
    gap: 0.25rem;
}

.page-item .page-link {
    border: 1px solid var(--pc-border-color);
    color: var(--pc-text-main);
    padding: 0.5rem 0.85rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--pc-radius-md);
    transition: var(--pc-transition);
}

.page-item .page-link:hover {
    background-color: var(--pc-secondary-light);
    border-color: var(--pc-border-color);
    color: var(--pc-primary);
}

.page-item.active .page-link {
    background-color: var(--pc-primary);
    border-color: var(--pc-primary);
    color: #FFFFFF;
}

.page-item.disabled .page-link {
    color: var(--pc-text-light);
    background-color: transparent;
    border-color: var(--pc-border-color);
}

/* Modals */
.modal-content {
    border-radius: var(--pc-radius-lg);
    border: 1px solid var(--pc-border-color);
    box-shadow: var(--pc-shadow-lg);
    overflow: hidden;
}

.modal-header {
    border-bottom: 1px solid var(--pc-border-color);
    padding: 1.25rem 1.5rem;
}

.modal-title {
    font-weight: 700;
    font-size: 1.15rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--pc-border-color);
    background-color: var(--pc-secondary-light);
    padding: 1rem 1.5rem;
}

/* Alerts */
.alert {
    border-radius: var(--pc-radius-md);
    padding: 1rem 1.25rem;
    border: 1px solid transparent;
    font-size: 0.925rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--pc-shadow-sm);
}

.alert-success {
    background-color: var(--pc-success-light);
    border-color: rgba(16, 185, 129, 0.2);
    color: var(--pc-success-text);
}

.alert-danger {
    background-color: var(--pc-danger-light);
    border-color: rgba(239, 68, 68, 0.2);
    color: var(--pc-danger-text);
}

.alert-warning {
    background-color: var(--pc-warning-light);
    border-color: rgba(245, 158, 11, 0.2);
    color: var(--pc-warning-text);
}

.alert-info {
    background-color: var(--pc-info-light);
    border-color: rgba(59, 130, 246, 0.2);
    color: var(--pc-info-text);
}

.alert .alert-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    font-size: 1.1rem;
    opacity: 0.5;
    transition: var(--pc-transition);
    color: inherit;
    padding: 0;
    line-height: 1;
}

.alert-close:hover {
    opacity: 1;
}

/* Breadcrumbs */
.breadcrumb {
    margin-bottom: 0;
}

.breadcrumb-item {
    font-size: 0.875rem;
    font-weight: 600;
}

.breadcrumb-item a {
    color: var(--pc-text-muted);
}

.breadcrumb-item a:hover {
    color: var(--pc-primary);
}

.breadcrumb-item.active {
    color: var(--pc-text-light);
}

.breadcrumb-item+.breadcrumb-item::before {
    color: var(--pc-text-light);
    content: "\F285";
    /* Bootstrap Icons chevron-right */
    font-family: "bootstrap-icons";
    font-size: 0.75rem;
}

/* ==========================================================================
   6. Custom Layout Components
   ========================================================================== */

/* Search bar in header */
.header-search {
    max-width: 380px;
    width: 100%;
}

.header-search .form-control {
    background-color: var(--pc-light);
    border-color: transparent;
    padding-left: 2.5rem;
    font-size: 0.875rem;
}

.header-search .form-control:focus {
    background-color: #FFFFFF;
    border-color: var(--pc-primary);
}

.header-search-wrapper {
    position: relative;
}

.header-search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--pc-text-muted);
    pointer-events: none;
}

/* Notification and Profile Dropdowns */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.action-btn-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--pc-border-color);
    background-color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pc-text-main);
    position: relative;
    transition: var(--pc-transition);
}

.action-btn-circle:hover {
    background-color: var(--pc-light);
    color: var(--pc-primary);
}

.action-btn-circle .badge-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 8px;
    height: 8px;
    background-color: var(--pc-danger);
    border-radius: 50%;
    border: 1px solid #FFFFFF;
}

.profile-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--pc-radius-pill);
    transition: var(--pc-transition);
}

.profile-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--pc-primary-light);
    color: var(--pc-primary-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
}

/* Avatar Sizing variations */
.avatar-sm {
    width: 28px !important;
    height: 28px !important;
    font-size: 0.8rem !important;
}

.avatar-md {
    width: 38px !important;
    height: 38px !important;
    font-size: 0.95rem !important;
}

.avatar-lg {
    width: 56px !important;
    height: 56px !important;
    font-size: 1.25rem !important;
}

.profile-details {
    line-height: 1.2;
}

.profile-name {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--pc-dark);
}

.profile-role {
    font-size: 0.75rem;
    color: var(--pc-text-muted);
    font-weight: 500;
}

/* Premium Dropdown animations */
.dropdown-menu {
    display: block !important;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.18s cubic-bezier(0.4, 0, 0.2, 1), transform 0.18s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.18s;
    border-radius: var(--pc-radius-md);
    border: 1px solid var(--pc-border-color);
    box-shadow: var(--pc-shadow-md);
    padding: 0.5rem;
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--pc-radius-sm);
    color: var(--pc-text-main);
    transition: var(--pc-transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dropdown-item:hover {
    background-color: var(--pc-light);
    color: var(--pc-primary);
}

.dropdown-item.text-danger:hover {
    background-color: var(--pc-danger-light);
    color: var(--pc-danger-text);
}

/* Page Header component */
.page-header-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.page-header-title {
    margin-bottom: 0.25rem;
    font-size: 1.75rem;
}

.page-header-subtitle {
    color: var(--pc-text-muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Loader overlay */
.pc-loader-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    border-radius: inherit;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.pc-loader-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.pc-spinner {
    width: 2.5rem;
    height: 2.5rem;
    border: 3px solid var(--pc-border-color);
    border-top-color: var(--pc-primary);
    border-radius: 50%;
    animation: pc-spin 0.8s linear infinite;
}

@keyframes pc-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Empty State component */
.empty-state {
    padding: 3rem 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.empty-state-icon {
    font-size: 3rem;
    color: var(--pc-text-light);
    margin-bottom: 1.25rem;
    width: 70px;
    height: 70px;
    background-color: var(--pc-secondary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.empty-state-description {
    color: var(--pc-text-muted);
    max-width: 400px;
    margin-bottom: 1.5rem;
    font-size: 0.925rem;
}

/* ==========================================================================
   7. Extended UI Component Library Styles
   ========================================================================== */

/* Premium Drag-and-Drop File Upload Area */
.pc-file-upload-zone {
    border: 2px dashed var(--pc-border-color);
    border-radius: var(--pc-radius-md);
    background-color: #FFFFFF;
    position: relative;
    transition: var(--pc-transition);
    cursor: pointer;
    overflow: hidden;
}

.pc-file-upload-zone:hover,
.pc-file-upload-zone.dragover {
    border-color: var(--pc-primary);
    background-color: var(--pc-primary-light);
}

.pc-file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}

.pc-file-upload-zone.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: var(--pc-secondary-light);
}

.pc-file-upload-zone.disabled .pc-file-input {
    cursor: not-allowed;
    pointer-events: none;
}

/* Skeleton Loader Shimmer */
.pc-skeleton {
    background: #E2E8F0;
    background: linear-gradient(90deg, #E2E8F0 25%, #EDF2F7 50%, #E2E8F0 75%);
    background-size: 200% 100%;
    animation: pc-shimmer 1.5s infinite linear;
    border-radius: var(--pc-radius-sm);
}

.pc-skeleton-text {
    height: 12px;
}

.pc-skeleton-circle {
    border-radius: 50%;
}

@keyframes pc-shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* Accordion Custom Overrides */
.accordion-item {
    background-color: #FFFFFF;
    border: 1px solid var(--pc-border-color);
}

.accordion-button {
    background-color: #FFFFFF;
    color: var(--pc-text-main);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 1.15rem 1.5rem;
    transition: var(--pc-transition);
    box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
    background-color: var(--pc-primary-light);
    color: var(--pc-primary-hover);
}

.accordion-button::after {
    background-size: 1rem;
    transition: transform 0.2s ease-in-out;
}

/* Tabs Custom Overrides */
.nav-tabs .nav-link {
    border: none;
    color: var(--pc-text-muted);
    font-weight: 600;
    padding: 0.85rem 1.25rem;
    font-size: 0.925rem;
    border-bottom: 2px solid transparent;
    transition: var(--pc-transition);
    background-color: transparent;
}

.nav-tabs .nav-link:hover {
    color: var(--pc-primary);
    border-bottom-color: var(--pc-border-color);
}

.nav-tabs .nav-link.active {
    color: var(--pc-primary);
    border-bottom: 2px solid var(--pc-primary);
    background-color: transparent;
}

/* Offcanvas Drawer Overrides */
.offcanvas {
    border-left: 1px solid var(--pc-border-color);
    box-shadow: var(--pc-shadow-lg);
}

.offcanvas-header {
    height: var(--pc-header-height);
}

.offcanvas-footer {
    border-top: 1px solid var(--pc-border-color);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ==========================================================================
   8. Dashboard Specific Styles
   ========================================================================== */

/* Vertical Timeline */
.pc-timeline {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0;
    list-style: none;
}

.pc-timeline::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    bottom: 5px;
    width: 2px;
    background-color: var(--pc-border-color);
}

.pc-timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
}

.pc-timeline-item:last-child {
    padding-bottom: 0;
}

.pc-timeline-badge {
    position: absolute;
    top: 5px;
    left: -1.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--pc-border-color);
    border: 2px solid #FFFFFF;
    box-shadow: 0 0 0 3px rgba(226, 232, 240, 0.5);
    z-index: 1;
}

.pc-timeline-badge.bg-primary {
    background-color: var(--pc-primary) !important;
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.2);
}

.pc-timeline-badge.bg-success {
    background-color: var(--pc-success) !important;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.pc-timeline-badge.bg-warning {
    background-color: var(--pc-warning) !important;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.pc-timeline-badge.bg-danger {
    background-color: var(--pc-danger) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.pc-timeline-badge.bg-info {
    background-color: var(--pc-info) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.pc-timeline-time {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--pc-text-light);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
}

.pc-timeline-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--pc-dark);
    margin-bottom: 0.15rem;
}

.pc-timeline-desc {
    font-size: 0.825rem;
    color: var(--pc-text-muted);
}

/* Custom Progress Bars */
.pc-progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.825rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.progress {
    height: 6px;
    border-radius: var(--pc-radius-pill);
    background-color: var(--pc-secondary-light);
    overflow: hidden;
}

.progress-bar {
    border-radius: var(--pc-radius-pill);
}

/* Print Styles and A4 Preview */
.a4-sheet {
    background: #ffffff;
    width: 210mm;
    min-height: 297mm;
    padding: 20mm;
    margin: 2rem auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-radius: 4px;
    color: #000000;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.a4-sheet table {
    color: #000000 !important;
}

.a4-sheet th {
    background-color: #f8fafc !important;
    color: #000000 !important;
    border-bottom: 2px solid #e2e8f0 !important;
}

.print-btn-group .btn {
    padding: 0.5rem 1.25rem;
}

@media print {
    body {
        background: #ffffff !important;
        color: #000000 !important;
    }

    .sidebar,
    .top-header,
    .preview-toolbar,
    .page-header,
    .breadcrumb,
    .btn-scroll-top,
    .card-header-actions,
    .no-print {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
        width: 100% !important;
    }

    .a4-sheet {
        margin: 0 !important;
        padding: 0 !important;
        width: 100% !important;
        min-height: auto !important;
        box-shadow: none !important;
        border: none !important;
    }

    @page {
        size: A4 portrait;
        margin: 15mm;
    }
}

/* ==========================================================================
   9. UX Polish & Refinements (Phase UAT)
   ========================================================================== */

/* --- Typography Utilities --- */
.font-weight-400 { font-weight: 400 !important; }
.font-weight-500 { font-weight: 500 !important; }
.font-weight-600 { font-weight: 600 !important; }
.font-weight-700 { font-weight: 700 !important; }
.font-weight-800 { font-weight: 800 !important; }

/* --- Table: More visible row hover, better zebra feel --- */
.table-hover tbody tr:hover {
    background-color: rgba(217, 119, 6, 0.04) !important;
    cursor: default;
}

/* Ensure last table row border is removed (no double border at bottom of card) */
.card .table tbody tr:last-child td {
    border-bottom: 0;
}

/* --- Table: Icon-only action buttons standardized --- */
.table .btn-sm.btn-light {
    width: 32px;
    height: 32px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--pc-radius-sm);
}

/* --- Sidebar: Smoother submenu collapse animation --- */
.sidebar-submenu {
    transition: none; /* Bootstrap handles collapse; no CSS fight */
}

.sidebar-submenu .submenu-link.active {
    color: var(--pc-primary) !important;
    background-color: rgba(217, 119, 6, 0.1) !important;
    border-left: 2px solid var(--pc-primary);
    padding-left: calc(1rem - 2px);
}

/* Parent menu-item highlight when submenu is active (has active child) */
.menu-item:has(.submenu-link.active) > .menu-link {
    background-color: rgba(255,255,255,0.05);
}

/* --- Card: Remove excess bottom margin on last child inside card-body --- */
.card-body > *:last-child {
    margin-bottom: 0;
}

/* --- Card spacing when no header --- */
.card .card-body.p-0 {
    padding: 0 !important;
}

/* --- Alert: tighter top-margin when used inside card-body --- */
.card-body > .alert:first-child {
    margin-top: 0;
}

/* --- Forms: consistent mb for form groups --- */
.form-group,
.mb-3 {
    margin-bottom: 1.1rem !important;
}

/* Required star */
.form-label .text-danger {
    font-size: 0.85em;
    margin-left: 2px;
}

/* Form control invalid state */
.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--pc-danger);
    box-shadow: none;
}

.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
    border-color: var(--pc-danger);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.12);
}

.invalid-feedback {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--pc-danger);
    margin-top: 0.35rem;
}

/* --- Status Badge: more refined look --- */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.3em 0.75em;
    border-radius: var(--pc-radius-pill);
    letter-spacing: 0.01em;
    white-space: nowrap;
}

/* --- Page Header: tighter on mobile --- */
@media (max-width: 575.98px) {
    .page-header-title {
        font-size: 1.35rem;
    }
    .page-header-wrapper {
        margin-bottom: 1.25rem;
    }
    .page-header-actions {
        flex-wrap: wrap;
    }
    .content-body {
        padding: 1rem;
    }
}

/* --- Filter Bar: compact form label --- */
.card .card-body .form-label {
    font-size: 0.8rem;
    margin-bottom: 0.35rem;
    color: var(--pc-text-muted);
}

/* --- Sticky table header with proper z-index --- */
.table thead th {
    position: sticky;
    top: 0;
    z-index: 5;
    box-shadow: inset 0 -1px 0 var(--pc-border-color);
}

/* --- Table wrapper overflow with max-height for very long tables --- */
.table-responsive {
    max-height: 70vh;
    overflow-y: auto;
}

/* Reset max-height for tables inside card-body that shouldn't scroll */
.card-body > .table-responsive {
    max-height: none;
}

/* --- Modal: cancel button always last --- */
.modal-footer .btn-secondary,
.modal-footer .btn-light {
    order: -1;
}

/* --- Empty state inside table cell: remove padding from td --- */
td > .empty-state {
    padding: 2rem 1rem;
}

.empty-state-icon {
    font-size: 2.5rem;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--pc-secondary-light) 0%, #fff 100%);
    border: 1px solid var(--pc-border-color);
    box-shadow: var(--pc-shadow-sm);
}

/* --- Dashboard stats card spacing --- */
.stats-card-value {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

/* --- Overdue / balance table cells --- */
.table td.text-danger {
    color: var(--pc-danger) !important;
}
.table td.text-success {
    color: var(--pc-success) !important;
}

/* --- Badge inside table cell --- */
td .badge {
    font-size: 0.75rem;
}

/* --- Prevent action button group from wrapping --- */
.d-inline-flex.gap-1 {
    flex-wrap: nowrap;
}

/* --- Pagination: center on mobile --- */
@media (max-width: 767.98px) {
    .pagination {
        justify-content: center;
    }
}

/* --- Dropdown: make item icons consistent --- */
.dropdown-item i {
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}

/* --- Header: reduce padding on medium screens --- */
@media (max-width: 1199.98px) {
    .app-header {
        padding: 0 1.5rem;
    }
}

/* --- Card margin-bottom refinement: last card in a column shouldn't add extra space --- */
.col-lg-8 .card:last-child,
.col-lg-4 .card:last-child {
    margin-bottom: 0;
}

/* --- Settings / Profile page form section separators --- */
.card-body + .card-body {
    border-top: 1px solid var(--pc-border-color);
}

/* --- Sidebar footer: user-friendly hover state --- */
.sidebar-footer .menu-link:hover {
    background-color: rgba(239, 68, 68, 0.1);
    border-radius: var(--pc-radius-sm);
}

/* --- Input group focus propagation --- */
.input-group:focus-within .input-group-text {
    border-color: var(--pc-primary);
}

/* --- Show sidebar submenu indicator dot for active parent --- */
.menu-link.menu-has-active-child {
    background-color: rgba(255,255,255,0.06) !important;
}

/* --- Animate page loader full-page hide --- */
#globalPageLoader {
    transition: opacity 0.3s ease;
}

/* --- Ensure flash messages don't scroll under sticky header --- */
.content-body > .container-fluid > .alert:first-child {
    margin-top: 0;
}

/* --- Table: column-specific responsive helpers --- */
@media (max-width: 767.98px) {
    .table .d-inline-flex.gap-1 {
        flex-direction: column;
        gap: 0.25rem !important;
    }
    .table thead {
        display: none;
    }
    .table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.65rem 1rem;
        border-bottom: 1px solid var(--pc-border-color);
    }
    .table td::before {
        content: attr(data-label);
        font-weight: 700;
        font-size: 0.75rem;
        color: var(--pc-text-muted);
        text-transform: uppercase;
        letter-spacing: 0.04em;
        flex-shrink: 0;
        margin-right: 0.5rem;
    }
}

/* Restore normal table layout for report tables that must always be full-width */
.table-responsive-off .table thead { display: table-header-group; }
.table-responsive-off .table td { display: table-cell; }
.table-responsive-off .table td::before { display: none; }