/**
 * Modern Design System for Key Management System
 * Version: 2.0
 * Date: October 22, 2025
 */

/* ===========================
   COLOR PALETTE
   =========================== */
:root {
    /* Primary Colors - Modern Purple Gradient */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-dark: #5568d3;
    --primary-light: #8b9aff;
    
    /* Accent Colors */
    --accent-blue: #4F46E5;
    --accent-purple: #7C3AED;
    --accent-pink: #EC4899;
    
    /* Status Colors */
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    --info-color: #3B82F6;
    
    /* Neutral Colors */
    --dark-bg: #1F2937;
    --medium-bg: #374151;
    --light-bg: #F9FAFB;
    --white: #FFFFFF;
    
    /* Text Colors */
    --text-dark: #111827;
    --text-medium: #6B7280;
    --text-light: #9CA3AF;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===========================
   GLOBAL STYLES
   =========================== */
* {
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 1.05rem;
    line-height: 1.6;
    background: var(--light-bg);
    color: var(--text-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    position: relative;
}

/* Typography Enhancements */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.025em;
    text-transform: uppercase;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }

/* ===========================
   MODERN CARD DESIGNS
   =========================== */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    border: none;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-header {
    background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
    border-bottom: 2px solid #667eea20;
    padding: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-body {
    padding: 1.5rem;
}

/* Glass Card Effect */
.card-glass {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ===========================
   STAT CARDS WITH GRADIENTS
   =========================== */
.stat-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    color: var(--white);
    transition: all var(--transition-base);
    border: none;
    box-shadow: var(--shadow-lg);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transition: all var(--transition-slow);
}

.stat-card:hover::before {
    transform: scale(1.2);
}

.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-2xl);
}

.stat-card i {
    font-size: 3rem;
    opacity: 0.9;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 1rem 0 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stat-card p {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    opacity: 0.95;
}

/* Stat Card Color Variations */
.stat-card.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-card.success {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
}

.stat-card.warning {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
}

.stat-card.danger {
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
}

.stat-card.info {
    background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
}

/* ===========================
   MODERN BUTTONS
   =========================== */
.btn {
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.75rem 1.5rem;
    transition: all var(--transition-base);
    border: none;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: all var(--transition-fast);
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn:active {
    transform: translateY(0);
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, #5568d3 0%, #653a91 100%);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #D97706 100%);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #DC2626 100%);
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #2563EB 100%);
}

/* Button Sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ===========================
   MODERN FORMS
   =========================== */
.form-control, .form-select {
    border-radius: var(--radius-md);
    border: 2px solid #E5E7EB;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all var(--transition-base);
    background: var(--white);
}

.form-control:focus, .form-select:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    outline: none;
    transform: translateY(-1px);
}

.form-label {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.input-group-text {
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    font-weight: 600;
}

/* ===========================
   MODERN BADGES
   =========================== */
.badge {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.75rem;
    box-shadow: var(--shadow-sm);
}

.badge.bg-primary {
    background: var(--primary-gradient) !important;
}

.badge.bg-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%) !important;
}

.badge.bg-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #D97706 100%) !important;
}

.badge.bg-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #DC2626 100%) !important;
}

/* ===========================
   MODERN TABLE
   =========================== */
.table {
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
    border-bottom: 2px solid #667eea40;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.875rem;
    padding: 1rem;
    color: var(--text-dark);
}

.table tbody tr {
    transition: all var(--transition-base);
    border-bottom: 1px solid #E5E7EB;
}

.table tbody tr:hover {
    background: #F3F4F6;
    transform: scale(1.01);
    box-shadow: var(--shadow-sm);
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    font-size: 0.95rem;
}

.table-responsive {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

/* ===========================
   MODERN ALERTS
   =========================== */
.alert {
    border-radius: var(--radius-lg);
    border: none;
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert i {
    font-size: 1.5rem;
}

.alert-success {
    background: linear-gradient(135deg, #10B98110 0%, #05966910 100%);
    color: #065F46;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, #EF444410 0%, #DC262610 100%);
    color: #991B1B;
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background: linear-gradient(135deg, #F59E0B10 0%, #D9770610 100%);
    color: #92400E;
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background: linear-gradient(135deg, #3B82F610 0%, #2563EB10 100%);
    color: #1E40AF;
    border-left: 4px solid var(--info-color);
}

/* ===========================
   MODERN MODAL
   =========================== */
.modal-content {
    border-radius: var(--radius-2xl);
    border: none;
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
}

.modal-header {
    background: var(--primary-gradient);
    color: var(--white);
    padding: 1.5rem 2rem;
    border-bottom: none;
}

.modal-title {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid #E5E7EB;
}

/* ===========================
   SIDEBAR MODERN DESIGN
   =========================== */
.sidebar {
    background: var(--primary-gradient);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    max-width: 100%;
    flex-shrink: 0;
}

.sidebar::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    pointer-events: none;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    padding: 0.875rem 1.5rem;
    margin: 0.25rem 0.75rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar .nav-link i {
    font-size: 1.25rem;
    width: 1.5rem;
    text-align: center;
}

.sidebar .nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    transform: translateX(4px);
}

.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.25);
    color: var(--white);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* ===========================
   ANIMATIONS
   =========================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* ===========================
   PAGINATION MODERN
   =========================== */
.pagination .page-link {
    border-radius: var(--radius-md);
    margin: 0 0.25rem;
    border: 2px solid #E5E7EB;
    color: var(--text-dark);
    font-weight: 600;
    padding: 0.5rem 1rem;
    transition: all var(--transition-base);
}

.pagination .page-link:hover {
    background: var(--primary-gradient);
    color: var(--white);
    border-color: transparent;
    transform: translateY(-2px);
}

.pagination .page-item.active .page-link {
    background: var(--primary-gradient);
    border-color: transparent;
    box-shadow: var(--shadow-md);
}

/* ===========================
   TOOLTIPS
   =========================== */
.tooltip-inner {
    background: var(--dark-bg);
    border-radius: var(--radius-md);
    padding: 0.5rem 1rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
}

/* ===========================
   SCROLLBAR STYLING
   =========================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5568d3 0%, #653a91 100%);
}

/* ===========================
   RESPONSIVE UTILITIES
   =========================== */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .card-body {
        padding: 1.25rem;
    }
    
    .stat-card {
        padding: 1.5rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }
}

/* ===========================
   LOADING SPINNER
   =========================== */
.spinner-modern {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(102, 126, 234, 0.2);
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===========================
   UTILITY CLASSES
   =========================== */
.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-custom {
    box-shadow: var(--shadow-xl);
}

.rounded-custom {
    border-radius: var(--radius-xl);
}

/* ===========================
   PAGE FOOTER (Inside Main Content)
   =========================== */
.page-footer {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    margin-top: auto;
    padding: 0;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
}

.page-footer .row {
    margin-left: 0;
    margin-right: 0;
    width: 100%;
}

.page-footer .border-top {
    border-top: 2px solid rgba(102, 126, 234, 0.1) !important;
}

.page-footer i {
    color: var(--primary-color);
    margin-right: 0.25rem;
}

.page-footer strong {
    color: var(--primary-color);
    font-weight: 700;
}

.page-footer .text-muted {
    font-size: 0.9rem;
    color: #6c757d !important;
}

/* Make main content area flex to push footer to bottom */
.main-content {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 4rem);
    padding-left: 0 !important;
    padding-right: 0 !important;
    overflow-x: hidden;
    max-width: 100%;
    width: 100%;
    flex: 1;
    min-width: 0;
}

/* Remove default Bootstrap padding from container-fluid when used with sidebar */
.container-fluid {
    padding-left: 0 !important;
    padding-right: 0 !important;
    overflow-x: hidden;
    max-width: 100%;
}

/* Prevent horizontal scroll on rows */
.row {
    margin-left: 0 !important;
    margin-right: 0 !important;
    max-width: 100%;
    overflow-x: hidden;
}

/* Add padding only to content inside main-content */
.main-content > * {
    padding-left: 2rem !important;
    padding-right: 2rem !important;
    max-width: 100%;
}

/* Add padding to nested content divs */
.main-content .d-flex,
.main-content .card,
.main-content .alert,
.main-content .row {
    margin-left: 0 !important;
    margin-right: 0 !important;
}

/* Specific padding for content wrapper */
.main-content {
    padding-left: 2rem !important;
    padding-right: 2rem !important;
}

/* But not for the footer - make it full width */
.main-content .page-footer {
    padding-left: 0 !important;
    padding-right: 0 !important;
    margin-left: calc(-1 * var(--bs-gutter-x, 1.5rem)) !important;
    margin-right: calc(-1 * var(--bs-gutter-x, 1.5rem)) !important;
    width: calc(100% + (2 * var(--bs-gutter-x, 1.5rem)));
    max-width: none;
}

/* For pages with px-md-4 class (which is 1.5rem on desktop) */
@media (min-width: 768px) {
    .main-content.px-md-4 .page-footer {
        margin-left: -1.5rem !important;
        margin-right: -1.5rem !important;
        width: calc(100% + 3rem);
    }
    
    .page-footer .row {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

/* Footer content needs padding on mobile */
.page-footer .row {
    padding-left: 1rem;
    padding-right: 1rem;
}

/* Ensure footer stays at bottom - but not on pages with sidebar */
body {
    min-height: 100vh;
}

/* ===========================
   RESPONSIVE TABLE HANDLING
   =========================== */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
    width: 100%;
}

.table {
    width: 100%;
    max-width: 100%;
    margin-bottom: 0;
}

/* Ensure table cells don't expand beyond viewport */
.table td,
.table th {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

/* Allow certain columns to wrap */
.table td.wrap-text,
.table th.wrap-text {
    white-space: normal;
    word-wrap: break-word;
}

/* Make cards responsive */
.card {
    max-width: 100%;
    overflow: hidden;
}

.card-body {
    overflow-x: hidden;
    max-width: 100%;
}

/* Responsive utilities */
@media (max-width: 768px) {
    .table td,
    .table th {
        max-width: 150px;
        font-size: 0.9rem;
    }
    
    .main-content {
        padding-left: 1.5rem !important;
        padding-right: 1.5rem !important;
    }
    
    .main-content > * {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }
    
    .main-content .page-footer {
        margin-left: -1.5rem !important;
        margin-right: -1.5rem !important;
        width: calc(100% + 3rem);
    }
    
    .page-footer .row {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

/* Prevent images and iframes from causing overflow */
img,
iframe,
video {
    max-width: 100%;
    height: auto;
}

.hover-lift {
    transition: transform var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
}

/* ===========================
   DATATABLES CUSTOM STYLING
   =========================== */
/* DataTables Wrapper */
.dataTables_wrapper {
    padding: 0;
}

/* DataTables Layout Sections */
.datatable-top {
    padding: 1rem 1.5rem;
    background: linear-gradient(to right, #f8f9ff, #ffffff);
    border-bottom: 2px solid #e5e7eb;
}

.datatable-buttons {
    padding: 1rem 1.5rem;
    background: white;
    border-bottom: 1px solid #e5e7eb;
}

.datatable-body {
    background: white;
}

.datatable-bottom {
    padding: 1rem 1.5rem;
    background: linear-gradient(to right, #ffffff, #f8f9ff);
    border-top: 2px solid #e5e7eb;
}

/* DataTables Buttons */
.dt-buttons {
    margin: 0;
    gap: 0.5rem;
    display: flex;
    flex-wrap: wrap;
}

.dt-button {
    border-radius: var(--radius-md) !important;
    font-weight: 600 !important;
    transition: all var(--transition-base) !important;
    border: none !important;
    padding: 0.5rem 1rem !important;
    font-size: 0.875rem !important;
}

.dt-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md) !important;
}

.dt-button:active {
    transform: translateY(0);
}

/* Search Box */
.dataTables_filter {
    display: flex;
    align-items: center;
}

.dataTables_filter label {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

.dataTables_filter input {
    border-radius: var(--radius-lg);
    border: 2px solid #e5e7eb;
    padding: 0.625rem 1rem;
    margin-left: 0.75rem;
    transition: all var(--transition-base);
    font-size: 0.9375rem;
    min-width: 250px;
}

.dataTables_filter input:focus {
    outline: none;
    border-color: var(--primary-dark);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
    background: #fafbff;
}

/* Length Menu */
.dataTables_length {
    display: flex;
    align-items: center;
}

.dataTables_length label {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--text-dark);
    margin: 0;
}

.dataTables_length select {
    border-radius: var(--radius-md);
    border: 2px solid #e5e7eb;
    padding: 0.5rem 2.25rem 0.5rem 0.875rem;
    margin: 0 0.5rem;
}

/* Table Header */
#borrowingTable thead th {
    background: var(--primary-gradient);
    color: white;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    border: none;
    padding: 1rem;
}

/* Table Rows */
#borrowingTable tbody tr {
    transition: all var(--transition-fast);
}

#borrowingTable tbody tr:hover {
    background-color: rgba(102, 126, 234, 0.05);
    transform: scale(1.01);
    box-shadow: var(--shadow-sm);
}

/* Table Cells */
#borrowingTable td {
    vertical-align: middle;
    padding: 1rem;
}

/* Pagination */
.dataTables_paginate .pagination {
    margin-top: 1rem;
}

.dataTables_paginate .page-link {
    border-radius: var(--radius-md);
    margin: 0 0.125rem;
    font-weight: 600;
    border: 2px solid #e5e7eb;
    transition: all var(--transition-base);
}

.dataTables_paginate .page-link:hover {
    background: var(--primary-gradient);
    color: white;
    border-color: var(--primary-dark);
    transform: translateY(-2px);
}

.dataTables_paginate .page-item.active .page-link {
    background: var(--primary-gradient);
    border-color: var(--primary-dark);
}

/* Info Text */
.dataTables_info {
    color: var(--text-medium);
    font-weight: 500;
}

/* Responsive Table */
table.dataTable.dtr-inline.collapsed>tbody>tr>td.dtr-control:before,
table.dataTable.dtr-inline.collapsed>tbody>tr>th.dtr-control:before {
    background-color: var(--primary-dark);
}

/* Loading */
.dataTables_processing {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.95) 100%);
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 600;
    box-shadow: var(--shadow-xl);
}

/* Empty State */
.dataTables_empty {
    padding: 3rem !important;
    text-align: center;
    color: var(--text-medium);
    font-size: 1.1rem;
}

/* ===========================
   IMPROVED BORROWING PAGE STYLES
   =========================== */

/* Statistics Cards - Modern Design */
.stats-section {
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, currentColor, transparent);
    opacity: 0.6;
}

.stat-card.stat-primary::before {
    color: #667eea;
}

.stat-card.stat-warning::before {
    color: var(--warning-color);
}

.stat-card.stat-success::before {
    color: var(--success-color);
}

.stat-card.stat-info::before {
    color: var(--info-color);
}

.stat-card-body {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.stat-card.stat-primary .stat-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.stat-card.stat-warning .stat-icon {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    color: white;
}

.stat-card.stat-success .stat-icon {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    color: white;
}

.stat-card.stat-info .stat-icon {
    background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
    color: white;
}

.stat-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.3), transparent);
    pointer-events: none;
}

.stat-content {
    flex: 1;
    min-width: 0;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-medium);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin: 0.5rem 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card.stat-warning .stat-value {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-card.stat-success .stat-value {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-card.stat-info .stat-value {
    background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

/* Page Header Improvements */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
}

.page-header .breadcrumb {
    background: transparent;
    padding: 0;
}

.page-header .breadcrumb-item a {
    color: var(--text-medium);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.page-header .breadcrumb-item a:hover {
    color: var(--accent-purple);
}

.page-header .breadcrumb-item.active {
    color: var(--text-dark);
    font-weight: 600;
}

/* Card Header with Gradient */
.card-header.bg-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

.card-header.bg-gradient h5 {
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-header.bg-gradient small {
    color: rgba(255, 255, 255, 0.9);
}

.card-header.bg-gradient .btn-outline-secondary {
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.card-header.bg-gradient .btn-outline-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
}

/* Empty State Design */
.empty-state {
    padding: 4rem 2rem;
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--text-light);
    opacity: 0.5;
}

.empty-state h5 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

/* Table Enhancements */
.table-row-hover {
    transition: all var(--transition-fast);
}

.table-row-hover:hover {
    background-color: #f8f9ff !important;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
}

/* Badge Styles */
.badge-key {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    display: inline-block;
}

/* Room Info Styles */
.room-info {
    line-height: 1.4;
}

.room-name {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.125rem;
}

.room-location {
    font-size: 0.8125rem;
    color: var(--text-medium);
}

/* Borrower Info */
.borrower-info {
    display: flex;
    align-items: center;
}

.borrower-info .fw-medium {
    font-weight: 600;
}

/* Phone Number */
.phone-number {
    display: flex;
    align-items: center;
}

.phone-number a {
    color: var(--text-dark);
    transition: color var(--transition-fast);
}

.phone-number a:hover {
    color: var(--accent-purple);
}

/* DateTime Info */
.datetime-info {
    line-height: 1.3;
}

.date-text {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.time-text {
    font-size: 0.8125rem;
    color: var(--text-medium);
}

/* Duration Badges */
.duration-badge {
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.8125rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.duration-completed {
    background: linear-gradient(135deg, #E0E7FF 0%, #C7D2FE 100%);
    color: #4F46E5;
}

.duration-short {
    background: linear-gradient(135deg, #DBEAFE 0%, #BFDBFE 100%);
    color: #1E40AF;
}

.duration-active {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    color: #92400E;
    animation: pulse-duration 2s ease-in-out infinite;
}

@keyframes pulse-duration {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

/* Status Badges */
.status-badge {
    padding: 0.4rem 0.875rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.8125rem;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.status-active {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
    color: #92400E;
    box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.status-active .bi-circle-fill {
    animation: pulse-status 1.5s ease-in-out infinite;
}

@keyframes pulse-status {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(0.9);
    }
}

.status-completed {
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%);
    color: #065F46;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.status-available {
    background: linear-gradient(135deg, #D1FAE5 0%, #A7F3D0 100%);
    color: #065F46;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.status-borrowed {
    background: linear-gradient(135deg, #FEE2E2 0%, #FECACA 100%);
    color: #991B1B;
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

.status-borrowed .bi-exclamation-circle-fill {
    animation: pulse-status 1.5s ease-in-out infinite;
}

/* Notes Cell */
.notes-cell {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    cursor: help;
}

.notes-text {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-dark);
}

.text-muted-custom {
    color: var(--text-light);
    font-style: italic;
    font-size: 0.875rem;
}

/* DataTables Responsive Improvements */
@media (max-width: 768px) {
    .stat-card-body {
        flex-direction: column;
        text-align: center;
        padding: 1.25rem;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
    
    .page-header .d-flex {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Hover Lift Effect */
.hover-lift {
    transition: all var(--transition-base);
}

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

/* Alert Improvements */
.alert {
    border: none;
    border-radius: var(--radius-lg);
}

.alert .bi {
    flex-shrink: 0;
}

/* Tooltip Styling */
.tooltip-inner {
    max-width: 300px;
    padding: 0.5rem 0.75rem;
    background-color: var(--dark-bg);
    border-radius: var(--radius-md);
}