/**
 * LRN Framework - Modern Enhancements
 * Premium UI improvements for a polished, professional experience
 * Version: 1.0
 */

/* ==========================================================================
   ENHANCED CSS CUSTOM PROPERTIES
   ========================================================================== */

:root,
[data-theme="dark"] {
    /* Animation Timings */
    --lrn-ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --lrn-ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --lrn-ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

    /* Enhanced Shadows for Cards */
    --lrn-shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.5);
    --lrn-shadow-card-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
    --lrn-shadow-float: 0 25px 50px -12px rgba(0, 0, 0, 0.75);
    --lrn-shadow-inset: inset 0 2px 4px 0 rgba(0, 0, 0, 0.3);

    /* New Accent Colors */
    --lrn-accent-purple: #a855f7;
    --lrn-accent-pink: #ec4899;
    --lrn-accent-cyan: #22d3d8;
    --lrn-accent-emerald: #10b981;
    --lrn-accent-amber: #f59e0b;

    /* New Gradients */
    --lrn-gradient-purple: linear-gradient(135deg, #a855f7 0%, #6366f1 100%);
    --lrn-gradient-pink: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
    --lrn-gradient-cyan: linear-gradient(135deg, #22d3d8 0%, #0ea5e9 100%);
    --lrn-gradient-emerald: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --lrn-gradient-amber: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --lrn-gradient-mesh: radial-gradient(at 40% 20%, rgba(91, 163, 255, 0.15) 0px, transparent 50%),
        radial-gradient(at 80% 0%, rgba(168, 85, 247, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 50%, rgba(16, 185, 129, 0.1) 0px, transparent 50%);
}

/* ==========================================================================
   STAT CARDS - Modern Dashboard Statistics
   ========================================================================== */

.stat-card {
    background: var(--lrn-card-bg);
    border: 1px solid var(--lrn-card-border);
    border-radius: 16px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s var(--lrn-ease-smooth);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--stat-color, var(--lrn-gradient-primary));
    border-radius: 16px 16px 0 0;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--lrn-shadow-card-hover);
    border-color: rgba(91, 163, 255, 0.3);
}

.stat-card .stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    background: var(--stat-color, var(--lrn-gradient-primary));
    color: white;
    box-shadow: 0 4px 14px var(--stat-shadow, rgba(91, 163, 255, 0.3));
}

.stat-card .stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--lrn-text-primary);
    line-height: 1.2;
    margin-bottom: 0.25rem;
    letter-spacing: -0.5px;
}

.stat-card .stat-label {
    font-size: 0.875rem;
    color: var(--lrn-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.stat-card .stat-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    margin-top: 0.75rem;
}

.stat-card .stat-change.positive {
    background: rgba(16, 185, 129, 0.15);
    color: var(--lrn-accent-emerald);
}

.stat-card .stat-change.negative {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

/* Stat Card Variants */
.stat-card.stat-primary {
    --stat-color: var(--lrn-gradient-primary);
    --stat-shadow: rgba(91, 163, 255, 0.3);
}

.stat-card.stat-purple {
    --stat-color: var(--lrn-gradient-purple);
    --stat-shadow: rgba(168, 85, 247, 0.3);
}

.stat-card.stat-pink {
    --stat-color: var(--lrn-gradient-pink);
    --stat-shadow: rgba(236, 72, 153, 0.3);
}

.stat-card.stat-cyan {
    --stat-color: var(--lrn-gradient-cyan);
    --stat-shadow: rgba(34, 211, 216, 0.3);
}

.stat-card.stat-emerald {
    --stat-color: var(--lrn-gradient-emerald);
    --stat-shadow: rgba(16, 185, 129, 0.3);
}

.stat-card.stat-amber {
    --stat-color: var(--lrn-gradient-amber);
    --stat-shadow: rgba(245, 158, 11, 0.3);
}

/* ==========================================================================
   ENHANCED CARD SYSTEM
   ========================================================================== */

.card-modern {
    background: var(--lrn-card-bg);
    border: 1px solid var(--lrn-card-border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s var(--lrn-ease-out-expo);
}

.card-modern:hover {
    transform: translateY(-6px);
    box-shadow: var(--lrn-shadow-float);
}

.card-modern .card-header-modern {
    padding: 1.5rem 1.75rem;
    background: linear-gradient(135deg, rgba(91, 163, 255, 0.08) 0%, transparent 100%);
    border-bottom: 1px solid var(--lrn-border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-modern .card-header-modern h3,
.card-modern .card-header-modern h4 {
    margin: 0;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-modern .card-header-modern h3 i,
.card-modern .card-header-modern h4 i {
    color: var(--lrn-primary);
}

.card-modern .card-body-modern {
    padding: 1.75rem;
}

.card-modern .card-footer-modern {
    padding: 1rem 1.75rem;
    background: rgba(36, 36, 53, 0.5);
    border-top: 1px solid var(--lrn-border-light);
}

/* Card with Icon Header */
.card-icon-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.card-icon-header .icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: var(--lrn-gradient-primary);
    color: white;
}

/* ==========================================================================
   DATA TABLE ENHANCEMENTS
   ========================================================================== */

.table-modern {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.9rem;
}

.table-modern thead {
    position: sticky;
    top: 0;
    z-index: 10;
}

.table-modern thead th {
    background: linear-gradient(135deg, rgba(36, 36, 53, 0.98) 0%, rgba(47, 47, 69, 0.98) 100%);
    backdrop-filter: blur(10px);
    color: var(--lrn-text-primary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 1rem 1.25rem;
    border-bottom: 2px solid var(--lrn-primary);
    text-align: left;
}

.table-modern thead th:first-child {
    border-radius: 12px 0 0 0;
}

.table-modern thead th:last-child {
    border-radius: 0 12px 0 0;
}

.table-modern tbody tr {
    transition: all 0.2s var(--lrn-ease-smooth);
}

.table-modern tbody tr:hover {
    background: rgba(91, 163, 255, 0.08);
}

.table-modern tbody tr:hover td {
    color: var(--lrn-text-primary);
}

.table-modern tbody td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--lrn-border-light);
    color: var(--lrn-text-secondary);
    vertical-align: middle;
}

.table-modern tbody tr:last-child td:first-child {
    border-radius: 0 0 0 12px;
}

.table-modern tbody tr:last-child td:last-child {
    border-radius: 0 0 12px 0;
}

/* Table Actions */
.table-actions {
    display: flex;
    gap: 0.5rem;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.table-modern tbody tr:hover .table-actions {
    opacity: 1;
}

.table-action-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(91, 163, 255, 0.1);
    color: var(--lrn-primary);
    border: none;
    cursor: pointer;
    transition: all 0.2s var(--lrn-ease-smooth);
}

.table-action-btn:hover {
    background: var(--lrn-primary);
    color: white;
    transform: scale(1.1);
}

.table-action-btn.danger {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.table-action-btn.danger:hover {
    background: #ef4444;
    color: white;
}

/* ==========================================================================
   ENHANCED FORM CONTROLS
   ========================================================================== */

.form-group-modern {
    margin-bottom: 1.5rem;
}

.form-group-modern label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--lrn-text-primary);
    font-size: 0.9rem;
}

.form-group-modern .required::after {
    content: ' *';
    color: var(--lrn-danger);
}

.form-control-modern {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(36, 36, 53, 0.6);
    border: 2px solid rgba(91, 163, 255, 0.15);
    border-radius: 12px;
    color: var(--lrn-text-primary);
    font-size: 1rem;
    transition: all 0.3s var(--lrn-ease-smooth);
}

.form-control-modern:focus {
    outline: none;
    background: rgba(47, 47, 69, 0.8);
    border-color: var(--lrn-primary);
    box-shadow: 0 0 0 4px rgba(91, 163, 255, 0.15);
}

.form-control-modern::placeholder {
    color: var(--lrn-text-muted);
    opacity: 0.7;
}

/* Input with Icon */
.input-with-icon {
    position: relative;
}

.input-with-icon .form-control-modern {
    padding-left: 3rem;
}

.input-with-icon .input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--lrn-text-muted);
    font-size: 1.1rem;
    transition: color 0.3s;
}

.input-with-icon:focus-within .input-icon {
    color: var(--lrn-primary);
}

/* Floating Label */
.form-floating-modern {
    position: relative;
}

.form-floating-modern .form-control-modern {
    padding-top: 1.625rem;
    padding-bottom: 0.625rem;
}

.form-floating-modern label {
    position: absolute;
    top: 0;
    left: 1rem;
    height: 100%;
    padding: 1rem 0;
    pointer-events: none;
    border: 1px solid transparent;
    transform-origin: 0 0;
    transition: all 0.3s var(--lrn-ease-smooth);
    color: var(--lrn-text-muted);
}

.form-floating-modern .form-control-modern:focus~label,
.form-floating-modern .form-control-modern:not(:placeholder-shown)~label {
    transform: scale(0.75) translateY(-0.5rem);
    color: var(--lrn-primary);
}

/* ==========================================================================
   ENHANCED BUTTONS
   ========================================================================== */

.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s var(--lrn-ease-smooth);
    position: relative;
    overflow: hidden;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-modern:hover::before {
    opacity: 1;
}

.btn-modern.btn-primary-modern {
    background: var(--lrn-gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(91, 163, 255, 0.3);
}

.btn-modern.btn-primary-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(91, 163, 255, 0.4);
}

.btn-modern.btn-secondary-modern {
    background: rgba(47, 47, 69, 0.8);
    color: var(--lrn-text-primary);
    border: 2px solid var(--lrn-border-primary);
}

.btn-modern.btn-secondary-modern:hover {
    background: rgba(54, 54, 80, 0.9);
    border-color: var(--lrn-primary);
}

.btn-modern.btn-ghost {
    background: transparent;
    color: var(--lrn-primary);
}

.btn-modern.btn-ghost:hover {
    background: rgba(91, 163, 255, 0.1);
}

/* Icon Buttons */
.btn-icon-modern {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==========================================================================
   PAGE HEADER COMPONENT
   ========================================================================== */

.page-header-modern {
    padding: 2rem 0;
    margin-bottom: 2rem;
}

.page-header-modern .page-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header-modern .page-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 0;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--lrn-text-primary);
}

.page-header-modern .page-title .title-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--lrn-gradient-primary);
    color: white;
    font-size: 1.25rem;
}

.page-header-modern .page-subtitle {
    color: var(--lrn-text-muted);
    font-size: 1rem;
    margin-top: 0.5rem;
}

.page-header-modern .page-actions {
    display: flex;
    gap: 0.75rem;
}

/* Breadcrumb */
.breadcrumb-modern {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.breadcrumb-modern a {
    color: var(--lrn-text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb-modern a:hover {
    color: var(--lrn-primary);
}

.breadcrumb-modern .separator {
    color: var(--lrn-text-muted);
    opacity: 0.5;
}

.breadcrumb-modern .current {
    color: var(--lrn-text-primary);
    font-weight: 500;
}

/* ==========================================================================
   QUICK ACTION CARDS
   ========================================================================== */

.quick-action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.quick-action-card {
    background: var(--lrn-card-bg);
    border: 1px solid var(--lrn-card-border);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s var(--lrn-ease-smooth);
    text-decoration: none;
    display: block;
}

.quick-action-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--lrn-shadow-card-hover);
    border-color: var(--lrn-primary);
}

.quick-action-card .action-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
    background: var(--action-color, var(--lrn-gradient-primary));
    color: white;
    box-shadow: 0 4px 14px var(--action-shadow, rgba(91, 163, 255, 0.3));
    transition: transform 0.3s var(--lrn-ease-bounce);
}

.quick-action-card:hover .action-icon {
    transform: scale(1.1) rotate(5deg);
}

.quick-action-card .action-title {
    color: var(--lrn-text-primary);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.quick-action-card .action-desc {
    color: var(--lrn-text-muted);
    font-size: 0.85rem;
}

/* ==========================================================================
   ACTIVITY FEED
   ========================================================================== */

.activity-feed {
    padding: 0;
    list-style: none;
    margin: 0;
}

.activity-item {
    display: flex;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--lrn-border-light);
    transition: all 0.2s;
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-item:hover {
    padding-left: 0.5rem;
}

.activity-item .activity-avatar {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.9rem;
    color: white;
}

.activity-item .activity-avatar.avatar-primary {
    background: var(--lrn-gradient-primary);
}

.activity-item .activity-avatar.avatar-success {
    background: var(--lrn-gradient-success);
}

.activity-item .activity-avatar.avatar-warning {
    background: var(--lrn-gradient-amber);
}

.activity-item .activity-avatar.avatar-danger {
    background: var(--lrn-gradient-danger);
}

.activity-item .activity-content {
    flex: 1;
}

.activity-item .activity-text {
    color: var(--lrn-text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.activity-item .activity-text strong {
    color: var(--lrn-text-primary);
}

.activity-item .activity-time {
    color: var(--lrn-text-muted);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

/* ==========================================================================
   EMPTY STATE
   ========================================================================== */

.empty-state {
    text-align: center;
    padding: 3rem 2rem;
}

.empty-state .empty-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    background: rgba(91, 163, 255, 0.1);
    color: var(--lrn-primary);
}

.empty-state .empty-title {
    color: var(--lrn-text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.empty-state .empty-desc {
    color: var(--lrn-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================================================
   SEARCH BOX
   ========================================================================== */

.search-box-modern {
    position: relative;
    max-width: 400px;
}

.search-box-modern input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    background: rgba(36, 36, 53, 0.6);
    border: 2px solid rgba(91, 163, 255, 0.15);
    border-radius: 14px;
    color: var(--lrn-text-primary);
    font-size: 0.95rem;
    transition: all 0.3s;
}

.search-box-modern input:focus {
    outline: none;
    background: rgba(47, 47, 69, 0.8);
    border-color: var(--lrn-primary);
    box-shadow: 0 0 0 4px rgba(91, 163, 255, 0.15);
}

.search-box-modern .search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--lrn-text-muted);
    font-size: 1rem;
    transition: color 0.3s;
}

.search-box-modern input:focus+.search-icon,
.search-box-modern:focus-within .search-icon {
    color: var(--lrn-primary);
}

/* ==========================================================================
   TABS
   ========================================================================== */

.tabs-modern {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--lrn-border-light);
    padding-bottom: 0;
    margin-bottom: 1.5rem;
}

.tab-modern {
    padding: 0.75rem 1.5rem;
    border: none;
    background: transparent;
    color: var(--lrn-text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    position: relative;
    transition: color 0.3s;
}

.tab-modern::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--lrn-primary);
    transform: scaleX(0);
    transition: transform 0.3s var(--lrn-ease-smooth);
}

.tab-modern:hover {
    color: var(--lrn-text-primary);
}

.tab-modern.active {
    color: var(--lrn-primary);
}

.tab-modern.active::after {
    transform: scaleX(1);
}

/* ==========================================================================
   BADGES
   ========================================================================== */

.badge-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.35rem 0.75rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-primary-modern {
    background: rgba(91, 163, 255, 0.15);
    color: var(--lrn-primary);
}

.badge-success-modern {
    background: rgba(16, 185, 129, 0.15);
    color: var(--lrn-accent-emerald);
}

.badge-warning-modern {
    background: rgba(245, 158, 11, 0.15);
    color: var(--lrn-accent-amber);
}

.badge-danger-modern {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.badge-purple-modern {
    background: rgba(168, 85, 247, 0.15);
    color: var(--lrn-accent-purple);
}

/* ==========================================================================
   LOADING STATES
   ========================================================================== */

.skeleton {
    background: linear-gradient(90deg,
            var(--lrn-bg-secondary) 25%,
            var(--lrn-bg-tertiary) 50%,
            var(--lrn-bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
    border-radius: 8px;
}

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

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

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-text.short {
    width: 60%;
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: 10px;
}

.skeleton-card {
    height: 120px;
}

/* ==========================================================================
   TOOLTIPS
   ========================================================================== */

[data-tooltip] {
    position: relative;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: 0.5rem 0.75rem;
    background: var(--lrn-bg-elevated);
    color: var(--lrn-text-primary);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
    box-shadow: var(--lrn-shadow-md);
    pointer-events: none;
}

[data-tooltip]:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-12px);
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.gradient-text {
    background: var(--lrn-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-effect {
    background: var(--lrn-glass-bg);
    backdrop-filter: var(--lrn-backdrop-blur);
    border: 1px solid var(--lrn-glass-border);
}

.mesh-background {
    background: var(--lrn-gradient-mesh);
}

.divider-modern {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--lrn-border-primary), transparent);
    margin: 1.5rem 0;
}

/* Gap utilities */
.gap-1 {
    gap: 0.25rem;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 0.75rem;
}

.gap-4 {
    gap: 1rem;
}

.gap-5 {
    gap: 1.5rem;
}

.gap-6 {
    gap: 2rem;
}

/* Animation utilities */
.animate-fade-in {
    animation: fadeInUp 0.5s var(--lrn-ease-out-expo) forwards;
}

.animate-delay-100 {
    animation-delay: 100ms;
}

.animate-delay-200 {
    animation-delay: 200ms;
}

.animate-delay-300 {
    animation-delay: 300ms;
}

.animate-delay-400 {
    animation-delay: 400ms;
}

.animate-delay-500 {
    animation-delay: 500ms;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Grid system enhancements */
.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

@media (max-width: 992px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {

    .grid-4,
    .grid-3,
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   ENHANCED FOOTER
   ========================================================================== */

.lrn-footer {
    padding: 1rem 0;
    margin-top: auto;
    border-top: 1px solid var(--lrn-border-light);
    background: var(--lrn-bg-secondary);
}

/* ==========================================================================
   ENHANCED SIDEBAR STYLES
   ========================================================================== */

.lrn-side-nav {
    background: linear-gradient(180deg, rgba(24, 24, 37, 0.98) 0%, rgba(36, 36, 53, 0.98) 100%) !important;
    backdrop-filter: blur(20px);
}

.lrn-side-nav-section {
    margin-bottom: 0.5rem;
}

.lrn-side-nav-title {
    padding: 0.875rem 1.25rem !important;
    font-size: 0.75rem !important;
    text-transform: uppercase !important;
    letter-spacing: 0.8px !important;
    color: var(--lrn-text-muted) !important;
    font-weight: 600 !important;
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    background: transparent !important;
    border-left: none !important;
}

.lrn-side-nav-title.collapsible {
    cursor: pointer;
    transition: color 0.2s;
}

.lrn-side-nav-title.collapsible:hover {
    color: var(--lrn-primary) !important;
}

.lrn-side-nav-title i {
    font-size: 0.85rem;
    opacity: 0.7;
}

.lrn-nav-group {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lrn-nav-group li {
    margin: 0;
}

.lrn-nav-link {
    display: flex !important;
    align-items: center !important;
    gap: 0.75rem !important;
    padding: 0.75rem 1.25rem 0.75rem 1.5rem !important;
    color: var(--lrn-text-secondary) !important;
    text-decoration: none !important;
    font-size: 0.9rem !important;
    font-weight: 500 !important;
    border-left: 3px solid transparent !important;
    transition: all 0.2s ease !important;
    position: relative;
}

.lrn-nav-link i {
    width: 20px;
    text-align: center;
    font-size: 0.95rem;
    opacity: 0.8;
    transition: all 0.2s;
}

.lrn-nav-link:hover {
    background: rgba(91, 163, 255, 0.08) !important;
    color: var(--lrn-text-primary) !important;
    border-left-color: rgba(91, 163, 255, 0.3) !important;
    padding-left: 1.75rem !important;
}

.lrn-nav-link:hover i {
    opacity: 1;
    color: var(--lrn-primary);
}

.lrn-nav-link.active {
    background: rgba(91, 163, 255, 0.12) !important;
    color: var(--lrn-primary) !important;
    border-left-color: var(--lrn-primary) !important;
    font-weight: 600 !important;
}

.lrn-nav-link.active i {
    opacity: 1;
    color: var(--lrn-primary);
}

/* Search in sidebar */
.lrn-nav-search {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--lrn-border-light);
}

.lrn-search-container {
    position: relative;
}

.lrn-search-input {
    width: 100%;
    padding: 0.65rem 2.5rem 0.65rem 2.75rem !important;
    background: rgba(47, 47, 69, 0.6);
    border: 1px solid var(--lrn-border-light);
    border-radius: 10px;
    color: var(--lrn-text-primary);
    font-size: 0.85rem;
    transition: all 0.2s;
}

.lrn-search-input:focus {
    outline: none;
    border-color: var(--lrn-primary);
    background: rgba(54, 54, 80, 0.8);
    box-shadow: 0 0 0 3px rgba(91, 163, 255, 0.1);
}

.lrn-search-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--lrn-text-muted);
    font-size: 0.85rem;
}

/* ==========================================================================
   ENHANCED HEADER NAV STYLES
   ========================================================================== */

.lrn-admin-header {
    background: linear-gradient(135deg, rgba(10, 10, 18, 0.98) 0%, rgba(22, 22, 31, 0.98) 100%) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(91, 163, 255, 0.15) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5) !important;
}

.lrn-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: transparent;
    border: none;
    color: var(--lrn-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.lrn-nav-btn:hover {
    background: rgba(91, 163, 255, 0.1);
    color: var(--lrn-primary);
}

.lrn-nav-btn.active {
    background: rgba(91, 163, 255, 0.15);
    color: var(--lrn-primary);
}

.lrn-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--lrn-gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

/* ==========================================================================
   DASHBOARD LAYOUT ENHANCEMENTS
   ========================================================================== */

.lrn-main-with-sidenav {
    padding: 1.5rem;
}

.dashboard-grid {
    display: grid;
    gap: 1.5rem;
}

/* Make containers work better with the new design */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}