/* ============================================
   QUICK STATS BAR
   ============================================ */

.quick-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

/* Stat Card (Auswertung Quick-Stats) */
.stat-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: 0 1px 2px rgba(15, 12, 20, 0.03);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.stat-card:hover {
    border-color: var(--gray-300);
    box-shadow: 0 8px 24px rgba(15, 12, 20, 0.06);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: var(--primary-lighter);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0;
    text-align: left;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.1;
    margin: 0;
    color: var(--dark);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}

.stat-change {
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.stat-change.positive { color: var(--success-light); }
.stat-change.negative { color: var(--error-light); }
.stat-change.neutral { color: var(--gray-500); }

.stat-sparkline {
    margin-top: var(--spacing-sm);
    height: 20px;
    display: flex;
    align-items: flex-end;
    gap: 2px;
}

.stat-sparkline span {
    flex: 1;
    background: var(--primary);
    opacity: 0.6;
    border-radius: 2px;
    transition: opacity var(--transition-fast);
}

.stat-sparkline span:hover {
    opacity: 1;
}

/* ============================================
   SECTION CARDS (Dashboard containers)
   ============================================ */

.section-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: 0 1px 2px rgba(15, 12, 20, 0.03);
    margin-bottom: var(--spacing-md);
    transition: border-color var(--transition-fast);
}

.section-card:hover {
    border-color: var(--gray-300);
}

.section-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

.section-card-header .collapse-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    color: var(--gray-500);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    flex-shrink: 0;
}

.section-card-header .collapse-icon:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.section-card-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    flex: 1;
    text-align: left;
    color: var(--dark);
}

.section-card-header h3 i {
    margin-right: 8px;
    color: var(--primary);
    font-size: 0.95rem;
}

.section-card-header h3 i:first-child {
    margin-right: var(--spacing-sm);
}

.section-card-header .card-controls,
.section-card-header .heatmap-toggle {
    margin-left: auto;
}

.card-controls {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.sort-select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    height: 28px;
    padding: 0 1.75rem 0 0.625rem;
    border: 1px solid var(--gray-200);
    border-radius: 5px;
    font-size: 0.8125rem;
    font-weight: 500;
    line-height: 1;
    color: var(--dark);
    background-color: var(--white);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6' fill='none' stroke='%237F8C8D' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='1 1 5 5 9 1'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-size: 10px 6px;
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.sort-select:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-300);
}

.sort-select:focus-visible {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

/* ============================================
   ACTIVITY HEATMAP
   ============================================ */

.heatmap-toggle {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-toggle {
    padding: 0.375rem 0.75rem;
    border: 1px solid var(--gray-200);
    background: var(--white);
    color: var(--dark);
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: -0.005em;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.btn-toggle:hover {
    background: var(--gray-50);
    border-color: var(--gray-300);
}

.btn-toggle.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.activity-heatmap {
    margin-top: var(--spacing-md);
}

.heatmap-row {
    display: grid;
    grid-template-columns: 40px 1fr 60px 80px;
    gap: var(--spacing-075);
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--gray-100);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.heatmap-row:hover {
    background: var(--gray-50);
    border-radius: 6px;
}

.heatmap-row:last-child {
    border-bottom: none;
}

.day-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--dark);
}

.hour-bar-container {
    position: relative;
    height: 24px;
    background: var(--gray-100);
    border-radius: 6px;
    overflow: hidden;
}

.hour-bar {
    height: 100%;
    border-radius: 6px;
    transition: width 300ms ease;
}

.hour-bar.green { background: linear-gradient(90deg, var(--success-light), var(--success-dark)); }
.hour-bar.yellow { background: linear-gradient(90deg, var(--warning-light), var(--warning-dark)); }
.hour-bar.red { background: linear-gradient(90deg, var(--error-light), var(--error-dark)); }
.hour-bar.gray { background: linear-gradient(90deg, var(--gray-400), var(--gray-500)); }

.hour-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark);
    text-align: right;
}

.day-sparkline {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 20px;
}

.day-sparkline span {
    width: 3px;
    background: var(--primary);
    opacity: 0.6;
    border-radius: 2px;
    transition: opacity var(--transition-fast);
}

.day-sparkline span:hover {
    opacity: 1;
}

.insights-box {
    margin-top: var(--spacing-md);
    padding: var(--spacing-075) var(--spacing-md);
    background: var(--info-lighter);
    border-left: 3px solid var(--primary);
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--info-dark);
}

/* ============================================
   CLIENT CARDS
   ============================================ */

.client-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-075);
}

.client-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.client-card:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.client-card.expanded {
    border-color: var(--primary);
    background: var(--gray-50);
}

.client-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-075);
}

.client-name {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: 1.125rem;
}

.client-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.client-hours {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

/* Budget Section */
.budget-section {
    margin-bottom: var(--spacing-075);
}

.budget-label {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 0.375rem;
    font-weight: 500;
}

.budget-progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-075);
}

.budget-bar {
    flex: 1;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.budget-fill {
    height: 100%;
    transition: width 300ms ease;
    border-radius: 4px;
}

.budget-fill.normal { background: var(--success-light); }
.budget-fill.warning { background: var(--warning-light); }
.budget-fill.danger { background: var(--error-light); }

.budget-percent {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-500);
    min-width: 45px;
    text-align: right;
}

/* Client Trend */
.client-trend {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.trend-sparkline {
    flex: 1;
    height: 20px;
    display: flex;
    align-items: flex-end;
    gap: 2px;
}

.trend-sparkline span {
    flex: 1;
    background: var(--primary);
    opacity: 0.6;
    border-radius: 2px;
}

.trend-indicator {
    font-size: 0.875rem;
    font-weight: 600;
}

.trend-indicator.positive { color: var(--success-light); }
.trend-indicator.negative { color: var(--error-light); }

/* Client Projects (expandable) */
.client-projects {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
    display: none;
}

.client-projects.visible {
    display: block;
}

.project-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    font-size: 0.875rem;
}

.project-name {
    color: var(--gray-500);
}

.project-hours {
    display: flex;
    align-items: center;
    gap: var(--spacing-075);
}

.project-hours-text {
    font-weight: 600;
    color: var(--dark);
}

.project-budget-bar {
    width: 80px;
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
}

.project-budget-fill {
    height: 100%;
    border-radius: 3px;
}

/* Expand Button */
.btn-expand {
    margin-top: var(--spacing-075);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gray-100);
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
}

.btn-expand:hover {
    background: var(--gray-200);
}

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

/* ============================================
   TAG BARS
   ============================================ */

.tag-bars {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.tag-bar {
    display: grid;
    grid-template-columns: 150px 1fr 80px 30px;
    gap: var(--spacing-075);
    align-items: center;
    padding: var(--spacing-sm);
    border-radius: 6px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.tag-bar:hover {
    background: var(--gray-50);
}

.tag-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--dark);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bar-track {
    height: 24px;
    background: var(--gray-100);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    border-radius: 6px;
    transition: width 300ms ease;
}

.tag-hours {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--dark);
    text-align: right;
}

.tag-indicator {
    font-size: 1rem;
    text-align: center;
}

/* ============================================
   CHARTS
   ============================================ */

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.chart-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.chart-card h3 {
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
}

.chart-card canvas {
    max-height: 300px;
}

/* ============================================
   CLIENT GRID VIEW (Table)
   ============================================ */

.client-grid-view {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.client-grid-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.client-grid-table thead {
    position: sticky;
    top: 0;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    z-index: 10;
}

.client-grid-table th {
    padding: var(--spacing-075) var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--dark);
    border-bottom: 2px solid var(--primary);
    white-space: nowrap;
}

.client-grid-table th.user-col {
    text-align: center;
    min-width: 80px;
}

.client-grid-table th.user-col .user-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem var(--spacing-075);
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
}

.client-grid-table th.user-col .user-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.client-row {
    border-bottom: 1px solid var(--gray-200);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.client-row:hover {
    background: var(--gray-50);
}

.client-row.expanded {
    background: var(--info-bg);
}

.client-grid-table td {
    padding: var(--spacing-075) var(--spacing-md);
    border-bottom: 1px solid var(--gray-100);
}

.client-name-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    white-space: nowrap;
}

.client-expand-icon {
    font-size: 0.75rem;
    color: var(--gray);
    transition: transform var(--transition-fast);
}

.client-row.expanded .client-expand-icon {
    transform: rotate(90deg);
}

.client-color-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.user-hours-cell {
    text-align: center;
    font-weight: 600;
    position: relative;
    min-width: 80px;
}

.user-hours-cell::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 4px;
}

/* Heatmap intensity classes */
.user-hours-cell.intensity-0::before { opacity: 0; }
.user-hours-cell.intensity-1::before { opacity: 0.1; }
.user-hours-cell.intensity-2::before { opacity: 0.2; }
.user-hours-cell.intensity-3::before { opacity: 0.3; }
.user-hours-cell.intensity-4::before { opacity: 0.4; }
.user-hours-cell.intensity-5::before { opacity: 0.5; }

.total-hours-cell {
    font-weight: 700;
    color: var(--primary);
    text-align: center;
}

.comparison-cell {
    text-align: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.comparison-cell.positive { color: var(--success-light); }
.comparison-cell.negative { color: var(--error-light); }
.comparison-cell.neutral { color: var(--gray-500); }

.project-row {
    background: var(--gray-50);
    display: none;
}

.client-row.expanded + .project-row,
.project-row.visible {
    display: table-row;
}

.project-row td {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.8rem;
    vertical-align: middle;
}

.project-name-cell {
    color: var(--gray);
}

.project-name-cell::before {
    content: '    \2514\2500 ';
    color: var(--gray-300);
}

.trend-mini {
    display: flex;
    align-items: flex-end;
    gap: 1px;
    height: 16px;
    min-width: 60px;
    justify-content: center;
}

.trend-mini span {
    flex: 1;
    background: var(--primary);
    opacity: 0.4;
    border-radius: 1px;
    max-width: 8px;
}