:root {
    --primary: #1e3a8a;
    --primary-light: #2563eb;
    --primary-dark: #0f172a;
    --accent: #f59e0b;
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --bg-hover: #f1f5f9;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-dim: #94a3b8;
    --border: #e2e8f0;
    --border-dark: #cbd5e1;
    --success: #10b981;
    --success-bg: #ecfdf5;
    --danger: #ef4444;
    --danger-bg: #fef2f2;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.06), 0 1px 2px -1px rgb(0 0 0 / 0.04);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.06);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    font-size: 13.5px;
    -webkit-font-smoothing: antialiased;
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.app-header {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    padding: 10px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-badge {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 24px;
    background: #eff6ff;
    padding: 6px;
    border-radius: var(--radius-md);
    border: 1px solid #dbeafe;
}

.logo-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: -0.3px;
}

.logo-subtitle {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Nav Tabs */
.nav-tabs {
    display: flex;
    gap: 4px;
    background: #f1f5f9;
    padding: 4px;
    border-radius: var(--radius-md);
}

.nav-tab {
    background: transparent;
    border: none;
    padding: 7px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s ease;
}

.nav-tab:hover {
    color: var(--text-main);
}

.nav-tab.active {
    background: #ffffff;
    color: var(--primary-light);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-profile-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    background: #f8fafc;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.user-badge-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-main);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 7px 14px;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    border: 1px solid transparent;
    transition: all 0.15s ease;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
}

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

.btn-secondary {
    background-color: #ffffff;
    border-color: var(--border-dark);
    color: var(--text-main);
}

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

.btn-outline {
    background: transparent;
    border-color: var(--border);
    color: var(--text-muted);
}

.btn-outline:hover {
    border-color: var(--text-muted);
    color: var(--text-main);
    background: #ffffff;
}

.btn-sm {
    padding: 4px 8px;
    font-size: 11.5px;
}

.btn-icon-only {
    padding: 5px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    background: transparent;
    cursor: pointer;
    font-size: 13px;
}

.btn-icon-only:hover {
    background: var(--bg-hover);
    border-color: var(--border);
}

/* Main Content */
.app-main {
    flex: 1;
    padding: 18px 24px 36px 24px;
    max-width: 1920px;
    margin: 0 auto;
    width: 100%;
}

.tab-content {
    display: none;
}

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

/* Filter Card */
.filter-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
}

.filter-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.filter-row.sub-filters {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #f1f5f9;
    justify-content: flex-start;
}

.year-pills {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.pill {
    background: #f1f5f9;
    border: 1px solid var(--border);
    padding: 5px 13px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.15s;
}

.pill:hover {
    border-color: var(--primary-light);
    color: var(--primary-light);
}

.pill.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 2px 4px rgba(30, 58, 138, 0.2);
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    min-width: 280px;
}

.search-icon {
    position: absolute;
    left: 10px;
    font-size: 13px;
    color: var(--text-dim);
    pointer-events: none;
}

.search-box input {
    width: 100%;
    padding: 6px 30px 6px 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 12.5px;
    outline: none;
}

.search-box input:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

.btn-clear {
    position: absolute;
    right: 8px;
    background: transparent;
    border: none;
    font-size: 16px;
    color: var(--text-dim);
    cursor: pointer;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
}

.filter-group label {
    font-weight: 500;
    color: var(--text-muted);
}

.filter-group select {
    padding: 5px 10px;
    font-size: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #ffffff;
    outline: none;
}

.filter-group select:focus {
    border-color: var(--primary-light);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

/* KPI Summary Strip */
.kpi-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
    margin-bottom: 16px;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.kpi-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
}

.kpi-card.ertrag::before { background-color: var(--success); }
.kpi-card.aufwand::before { background-color: var(--danger); }
.kpi-card.saldo::before { background-color: var(--primary-light); }
.kpi-card.count::before { background-color: var(--accent); }

.kpi-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.kpi-value {
    font-size: 20px;
    font-weight: 700;
    font-family: var(--font-mono);
    letter-spacing: -0.5px;
}

.kpi-subtext {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

.kpi-card.ertrag .kpi-value { color: #047857; }
.kpi-card.aufwand .kpi-value { color: #b91c1c; }
.kpi-card.saldo .kpi-value.positive { color: #047857; }
.kpi-card.saldo .kpi-value.negative { color: #b91c1c; }

/* Table Wrapper */
.table-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow-x: auto;
    max-height: calc(100vh - 350px);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    white-space: nowrap;
}

.data-table th {
    background: #f8fafc;
    color: var(--text-muted);
    font-weight: 600;
    text-align: left;
    padding: 9px 12px;
    border-bottom: 2px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table th.sortable {
    cursor: pointer;
    user-select: none;
}

.data-table th.sortable:hover {
    color: var(--primary-light);
    background: #f1f5f9;
}

.data-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    color: var(--text-main);
}

.data-table tr:hover td {
    background-color: #f8fafc;
}

.data-table tr.row-checked td {
    background-color: #fafdfb;
}

.col-check {
    width: 32px;
    text-align: center;
}

.check-toggle {
    cursor: pointer;
    font-weight: bold;
    font-size: 14px;
    color: var(--text-dim);
    transition: color 0.15s;
}

.check-toggle.checked {
    color: var(--success);
}

.col-date {
    font-family: var(--font-mono);
    width: 90px;
}

.col-details {
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

.badge-zuweisung {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 10.5px;
    font-weight: 500;
    background: #e0f2fe;
    color: #0369a1;
}

.badge-kategorie {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 10.5px;
    background: #f1f5f9;
    color: var(--text-muted);
}

.col-amount {
    text-align: right;
    font-family: var(--font-mono);
}

.col-aufwand { color: #b91c1c; }
.col-ertrag { color: #047857; }
.col-saldo.positive { color: #047857; font-weight: 600; }
.col-saldo.negative { color: #b91c1c; font-weight: 600; }

.matrix-col {
    display: none;
    text-align: right;
    font-family: var(--font-mono);
    font-size: 11px;
    background-color: #fdfdfd;
}

.show-matrix .matrix-col {
    display: table-cell;
}

.col-actions {
    text-align: center;
    width: 70px;
}

/* Quality Check Table */
.check-table th, .check-table td {
    padding: 10px 14px;
}

.badge-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 9px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.badge-status.korrekt {
    background: var(--success-bg);
    color: #065f46;
}

.badge-status.falsch {
    background: var(--danger-bg);
    color: #991b1b;
}

/* Pagination Bar */
.pagination-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    padding: 8px 4px;
    font-size: 12px;
    color: var(--text-muted);
}

.page-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.page-badge {
    font-weight: 600;
    color: var(--text-main);
}

/* Section Header */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    gap: 16px;
    flex-wrap: wrap;
}

.section-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-dark);
}

.section-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.section-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Dashboard Grid & Charts */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.dashboard-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
}

.dashboard-card.wide {
    grid-column: span 2;
}

.card-header.flex-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.dashboard-card .card-header h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-dark);
}

.card-subtitle {
    font-size: 11.5px;
    color: var(--text-muted);
    display: block;
    margin-top: 2px;
    margin-bottom: 12px;
}

.chart-wrapper-responsive {
    position: relative;
    width: 100%;
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-progress-list, .zuweisung-summary-list {
    margin-top: 14px;
    border-top: 1px solid #f1f5f9;
    padding-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.progress-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-size: 11.5px;
}

.progress-labels {
    display: flex;
    justify-content: space-between;
}

.progress-bar-bg {
    width: 100%;
    height: 6px;
    background: #f1f5f9;
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--primary-light);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.stats-table th, .stats-table td {
    padding: 10px 16px;
}

/* Masterdata Grid */
.masterdata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.masterdata-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.masterdata-card .card-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

.masterdata-card .card-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.masterdata-card .card-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 400px;
    overflow-y: auto;
}

.add-option-form {
    display: flex;
    gap: 6px;
}

.add-option-form input, .add-option-form select {
    padding: 6px 8px;
    font-size: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    flex: 1;
}

.option-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.option-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 12px;
}

.option-item:hover {
    background: #f1f5f9;
}

/* Modal */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-dialog {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #f8fafc;
}

.modal-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-dark);
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-dim);
}

.modal-close:hover {
    color: var(--text-main);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group.span-2 {
    grid-column: span 2;
}

.form-group label {
    font-size: 11.5px;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input, .form-group select {
    padding: 7px 10px;
    font-size: 12.5px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
}

.form-group input:focus, .form-group select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

.amount-helper-section {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px;
    margin-top: 4px;
}

.amount-helper-section h4 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-dark);
}

.quick-assign-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    background: #ffffff;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.quick-assign-bar input, .quick-assign-bar select {
    padding: 5px 8px;
    font-size: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.category-inputs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    max-height: 220px;
    overflow-y: auto;
    padding-right: 4px;
}

.cat-input-row {
    display: flex;
    align-items: center;
    gap: 6px;
    background: #ffffff;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.cat-title {
    font-size: 11px;
    font-weight: 500;
    width: 100px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cat-input-row input {
    width: 80px;
    padding: 4px 6px;
    font-size: 11.5px;
    font-family: var(--font-mono);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.cat-input-row input.cat-aufwand:focus { border-color: var(--danger); }
.cat-input-row input.cat-ertrag:focus { border-color: var(--success); }

.modal-totals-preview {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    font-family: var(--font-mono);
}

.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    background: #f8fafc;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Toast */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 2000;
}

.toast {
    background: #1e293b;
    color: #ffffff;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    font-size: 12.5px;
    box-shadow: var(--shadow-lg);
    animation: toast-in 0.2s ease-out;
}

.toast.success { background: #065f46; }
.toast.error { background: #991b1b; }

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

.hidden {
    display: none !important;
}