/* ========================================================================
   Sullaser Hub — UI Components (components.css)
   ========================================================================
   Reusable component library for cards, tables, buttons, forms,
   badges, modals, dropdowns, tabs, charts, and utility classes.
   ======================================================================== */

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* ==========================================================================
   Stat Cards
   ========================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-xs);
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.stat-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.stat-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-card-icon.primary {
    background: var(--primary-light);
    color: var(--primary);
}

.stat-card-icon.success {
    background: var(--success-light);
    color: var(--success);
}

.stat-card-icon.warning {
    background: var(--warning-light);
    color: var(--warning);
}

.stat-card-icon.danger {
    background: var(--danger-light);
    color: var(--danger);
}

.stat-card-icon.info {
    background: var(--info-light);
    color: var(--info);
}

.stat-card-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-card-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 6px;
}

.stat-card-footer {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
}

.stat-card-trend {
    font-size: 12px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

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

.stat-card-trend.down {
    color: var(--danger);
}

/* ==========================================================================
   Tables
   ========================================================================== */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

/* Table-specific thin scrollbar */
.table-container::-webkit-scrollbar {
    height: 4px;
}

.table-container::-webkit-scrollbar-track {
    background: transparent;
}

.table-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
    background: var(--bg-secondary);
    white-space: nowrap;
}

.data-table td {
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.04);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.table-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 16px;
    flex-wrap: wrap;
}

.table-actions {
    display: flex;
    gap: 4px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast),
                color var(--transition-fast), box-shadow var(--transition-fast),
                transform var(--transition-fast);
    border: 1px solid transparent;
    font-family: inherit;
    line-height: 1.4;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

/* ── Primary ────────────────────────────────────────────────────────────── */
.btn-primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* ── Secondary ──────────────────────────────────────────────────────────── */
.btn-secondary {
    background: white;
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--text-muted);
}

/* ── Success ────────────────────────────────────────────────────────────── */
.btn-success {
    background: var(--success);
    color: white;
    border-color: var(--success);
}

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

/* ── Danger ─────────────────────────────────────────────────────────────── */
.btn-danger {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
}

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

/* ── Ghost ──────────────────────────────────────────────────────────────── */
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 8px 12px;
}

.btn-ghost:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* ── Sizes ──────────────────────────────────────────────────────────────── */
.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 15px;
}

/* ── Icon Button ────────────────────────────────────────────────────────── */
.btn-icon {
    padding: 8px;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
}

/* ── Button Group ───────────────────────────────────────────────────────── */
.btn-group {
    display: flex;
    gap: 0;
}

.btn-group .btn {
    border-radius: 0;
}

.btn-group .btn:first-child {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.btn-group .btn:last-child {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.btn-group .btn + .btn {
    margin-left: -1px;
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-primary);
    background: white;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    font-family: inherit;
    outline: none;
    box-sizing: border-box;
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-select {
    width: 100%;
    padding: 10px 14px;
    padding-right: 36px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-primary);
    background: white;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    font-family: inherit;
    outline: none;
    box-sizing: border-box;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8.825a.5.5 0 0 1-.354-.146l-3.5-3.5a.5.5 0 0 1 .708-.708L6 7.618l3.146-3.147a.5.5 0 0 1 .708.708l-3.5 3.5A.5.5 0 0 1 6 8.825z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}

.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-primary);
    background: white;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    font-family: inherit;
    outline: none;
    box-sizing: border-box;
    resize: vertical;
    min-height: 100px;
}

.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ── Search Box ─────────────────────────────────────────────────────────── */
.search-box {
    position: relative;
}

.search-box-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    display: flex;
}

.search-box-input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: white;
    color: var(--text-primary);
}

.search-box-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.search-box-input::placeholder {
    color: var(--text-muted);
}

/* ==========================================================================
   Badges
   ========================================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    gap: 6px;
    white-space: nowrap;
}

.badge-primary {
    background: var(--primary-light);
    color: var(--primary-dark);
}

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

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

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

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

.badge-neutral {
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

/* ==========================================================================
   Status Dots
   ========================================================================== */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-dot.online {
    background: var(--success);
    box-shadow: 0 0 0 3px var(--success-light);
}

.status-dot.offline {
    background: var(--text-muted);
}

.status-dot.warning {
    background: var(--warning);
}

.status-dot.danger {
    background: var(--danger);
}

/* ==========================================================================
   Modals
   ========================================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast), color var(--transition-fast);
    display: flex;
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
}

/* ==========================================================================
   Dropdowns
   ========================================================================== */
.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: 6px;
    z-index: 1000;
}

.dropdown-menu.active {
    display: block;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-primary);
    text-decoration: none;
    cursor: pointer;
    transition: background var(--transition-fast);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.dropdown-item:hover {
    background: var(--bg-secondary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* ==========================================================================
   Tabs
   ========================================================================== */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 24px;
    gap: 0;
    overflow-x: auto;
}

.tab-item {
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color var(--transition-fast), border-color var(--transition-fast);
    white-space: nowrap;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: inherit;
}

.tab-item.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-item:hover:not(.active) {
    color: var(--text-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ==========================================================================
   Pagination
   ========================================================================== */
.pagination-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination-item {
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast),
                border-color var(--transition-fast);
    background: white;
    font-family: inherit;
    color: var(--text-primary);
}

.pagination-item.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.pagination-item:hover:not(.active) {
    background: var(--bg-secondary);
}

.pagination-item:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-info {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==========================================================================
   CSS Charts
   ========================================================================== */
.chart-container {
    padding: 8px 0;
}

/* ── Bar Chart ──────────────────────────────────────────────────────────── */
.bar-chart {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    height: 200px;
    padding: 16px 0;
}

.bar-chart-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.bar-chart-bar {
    width: 100%;
    min-width: 24px;
    border-radius: 6px 6px 0 0;
    transition: height 1s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.bar-chart-bar.primary {
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.bar-chart-bar.success {
    background: linear-gradient(180deg, var(--success) 0%, var(--success-dark) 100%);
}

.bar-chart-label {
    font-size: 12px;
    color: var(--text-secondary);
}

.bar-chart-value {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ── Donut Chart ────────────────────────────────────────────────────────── */
.donut-chart {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    position: relative;
}

.donut-chart-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--bg-card);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.donut-chart-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.donut-chart-label {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ── Chart Legend & Layout ──────────────────────────────────────────────── */
.chart-legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chart-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.chart-legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    flex-shrink: 0;
}

.chart-row {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

/* ==========================================================================
   Upload Zone
   ========================================================================== */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-base), background var(--transition-base),
                border-style var(--transition-base);
}

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

.upload-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
    border-style: solid;
}

.upload-zone.has-file {
    border-color: var(--success);
    border-style: solid;
}

.upload-zone-icon {
    margin-bottom: 16px;
    color: var(--text-muted);
}

.upload-zone-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.upload-zone-subtext {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==========================================================================
   Filter Bar & Chips
   ========================================================================== */
.filter-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast),
                border-color var(--transition-fast);
    background: white;
    font-family: inherit;
    color: var(--text-secondary);
}

.filter-chip.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.filter-chip:hover:not(.active) {
    background: var(--bg-secondary);
}

/* ==========================================================================
   Progress Bar
   ========================================================================== */
.progress-bar {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 1s ease;
}

.progress-bar-fill.primary {
    background: var(--primary);
}

.progress-bar-fill.success {
    background: var(--success);
}

.progress-bar-fill.warning {
    background: var(--warning);
}

.progress-bar-fill.danger {
    background: var(--danger);
}

/* ==========================================================================
   Empty State
   ========================================================================== */
.empty-state {
    text-align: center;
    padding: 64px 32px;
}

.empty-state-icon {
    margin-bottom: 16px;
    color: var(--text-muted);
}

.empty-state-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* ==========================================================================
   Coming Soon Badge
   ========================================================================== */
.coming-soon {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    background: var(--warning-light);
    color: var(--warning-dark);
    margin-left: auto;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   Notification Panel
   ========================================================================== */
.notification-panel {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 360px;
    z-index: 1000;
    max-height: 400px;
    overflow-y: auto;
}

.notification-panel.active {
    display: block;
}

.notification-panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.notification-panel-title {
    font-size: 14px;
    font-weight: 600;
}

.notification-item {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-light);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.notification-item:hover {
    background: var(--bg-secondary);
}

.notification-item.unread {
    background: var(--primary-light);
}

.notification-item-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.notification-item-text {
    font-size: 12px;
    color: var(--text-secondary);
}

.notification-item-time {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ==========================================================================
   QR Code (CSS Grid)
   ========================================================================== */
.qr-code {
    width: 200px;
    height: 200px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: grid;
    grid-template-columns: repeat(11, 1fr);
    grid-template-rows: repeat(11, 1fr);
    gap: 1px;
    padding: 12px;
}

.qr-code-cell {
    border-radius: 1px;
}

.qr-code-cell.filled {
    background: var(--text-primary);
}

.qr-code-cell.empty {
    background: white;
}

/* ==========================================================================
   Toggle Switch
   ========================================================================== */
.toggle {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: background var(--transition-fast);
    border: none;
    padding: 0;
    flex-shrink: 0;
}

.toggle.active {
    background: var(--success);
}

.toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.toggle.active::after {
    transform: translateX(20px);
}

/* ==========================================================================
   Utility Classes — Text
   ========================================================================== */
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.text-left    { text-align: left; }
.text-muted   { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }

/* ==========================================================================
   Utility Classes — Font Weight
   ========================================================================== */
.font-bold   { font-weight: 700; }
.font-medium { font-weight: 500; }

/* ==========================================================================
   Utility Classes — Spacing
   ========================================================================== */
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mr-1 { margin-right: 8px; }
.mr-2 { margin-right: 16px; }

.ml-1 { margin-left: 8px; }
.ml-2 { margin-left: 16px; }

.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.p-4 { padding: 32px; }

/* ==========================================================================
   Utility Classes — Flexbox
   ========================================================================== */
.flex         { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-col     { display: flex; flex-direction: column; }

/* ==========================================================================
   Utility Classes — Gap
   ========================================================================== */
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.gap-4 { gap: 32px; }

/* ==========================================================================
   Utility Classes — Grid
   ========================================================================== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ==========================================================================
   Utility Classes — Visibility & Sizing
   ========================================================================== */
.hidden   { display: none !important; }
.visible  { display: block; }
.w-full   { width: 100%; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ==========================================================================
   Animations — Keyframes
   ========================================================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-8px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Animations — Utility Classes
   ========================================================================== */
.animate-fade-in {
    animation: fadeIn 0.3s ease forwards;
}

.animate-slide-in {
    animation: slideIn 0.3s ease forwards;
}

.animate-pulse {
    animation: pulse 2s ease infinite;
}