*,
      *::before,
      *::after {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }
      :root {
        --bg: #0a0a0b;
        --bg-card: #111113;
        --bg-card-hover: #18181b;
        --bg-input: #1a1a1e;
        --bg-modal: #111113;
        --border: #27272a;
        --border-focus: #3f3f46;
        --text: #e4e4e7;
        --text-muted: #71717a;
        --text-dim: #52525b;
        --accent: #a1a1aa;
        --accent-bright: #d4d4d8;
        --danger: #dc2626;
        --danger-muted: #7f1d1d;
        --success: #22c55e;
        --success-muted: #14532d;
        --warning: #eab308;
        --warning-muted: #713f12;
        --radius: 6px;
        --font-mono: "JetBrains Mono", "Fira Code", monospace;
        --font-body: "IBM Plex Sans", "DM Sans", sans-serif;
        --header-height: 90px;
        --footer-height: 40px;
      }
      html {
        font-size: 13px;
      }
      body {
        background: var(--bg);
        color: var(--text);
        font-family: var(--font-body);
        line-height: 1.5;
        min-height: 100vh;
        -webkit-font-smoothing: antialiased;
      }
      ::-webkit-scrollbar {
        width: 6px;
        height: 6px;
      }
      ::-webkit-scrollbar-track {
        background: transparent;
      }
      ::-webkit-scrollbar-thumb {
        background: var(--border);
        border-radius: 3px;
      }
      ::-webkit-scrollbar-thumb:hover {
        background: var(--border-focus);
      }

      /* ===== sticky header ===== */
      .app-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
      }
      .app-header-inner {
        max-width: 1280px;
        margin: 0 auto;
        padding: 14px 20px 0;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
      }
      .header-left {
        position: absolute;
        left: 20px;
      }
      .app-title {
        font-family: var(--font-mono);
        font-size: 16px;
        font-weight: 600;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--text);
        text-align: center;
      }
      .app-title span {
        color: var(--text-dim);
        font-weight: 300;
      }
      .header-actions {
        position: absolute;
        right: 20px;
        display: flex;
        gap: 8px;
      }
      .header-nav {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 20px;
        display: flex;
        justify-content: center;
        gap: 0;
      }

      /* ===== main container ===== */
      .app-container {
        max-width: 1280px;
        margin: 0 auto;
        padding: 24px 20px 60px;
      }

      /* ===== sticky footer ===== */
      .app-footer {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 100;
        background: var(--bg-card);
        border-top: 1px solid var(--border);
      }
      .app-footer-inner {
        max-width: 1280px;
        margin: 0 auto;
        padding: 8px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
      }
      .footer-stats {
        display: flex;
        gap: 24px;
        font-family: var(--font-mono);
        font-size: 11px;
      }
      .footer-stat-item {
        display: flex;
        align-items: center;
        gap: 6px;
      }
      .footer-stat-label {
        color: var(--text-dim);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        font-size: 9px;
      }
      .footer-stat-value {
        font-weight: 600;
      }
      .footer-copyright {
        font-family: var(--font-mono);
        font-size: 10px;
        color: var(--text-dim);
        letter-spacing: 0.5px;
      }

      .btn {
        font-family: var(--font-mono);
        font-size: 11px;
        padding: 7px 14px;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        background: transparent;
        color: var(--text-muted);
        cursor: pointer;
        transition: all 0.15s ease;
        text-transform: uppercase;
        letter-spacing: 0.5px;
      }
      .btn:hover {
        border-color: var(--border-focus);
        color: var(--text);
        background: var(--bg-card);
      }
      .btn-primary {
        background: var(--text);
        color: var(--bg);
        border-color: var(--text);
      }
      .btn-primary:hover {
        background: var(--accent-bright);
      }
      .btn-danger {
        border-color: var(--danger-muted);
        color: var(--danger);
      }
      .btn-danger:hover {
        background: var(--danger-muted);
        border-color: var(--danger);
      }
      .btn-sm {
        padding: 4px 10px;
        font-size: 10px;
      }
      .card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 20px;
        margin-bottom: 16px;
      }
      .card-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 16px;
      }
      .card-title {
        font-family: var(--font-mono);
        font-size: 11px;
        font-weight: 500;
        text-transform: uppercase;
        letter-spacing: 1.5px;
        color: var(--text-muted);
      }
      .grid-2 {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }
      .grid-3 {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 16px;
      }
      .grid-4 {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
      }
      @media (max-width: 768px) {
        .grid-2,
        .grid-3,
        .grid-4 {
          grid-template-columns: 1fr;
        }
      }
      .form-group {
        margin-bottom: 12px;
      }
      .form-label {
        display: block;
        font-family: var(--font-mono);
        font-size: 10px;
        text-transform: uppercase;
        letter-spacing: 1px;
        color: var(--text-dim);
        margin-bottom: 5px;
      }
      .form-input,
      .form-select {
        width: 100%;
        padding: 8px 10px;
        background: var(--bg-input);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        color: var(--text);
        font-family: var(--font-body);
        font-size: 13px;
        outline: none;
        transition: border-color 0.15s ease;
      }
      .form-input:focus,
      .form-select:focus {
        border-color: var(--border-focus);
      }
      .form-input::placeholder {
        color: var(--text-dim);
      }
      .form-select {
        cursor: pointer;
        appearance: none;
        background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%2371717a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 10px center;
        padding-right: 30px;
      }
      .form-select option {
        background: var(--bg-card);
        color: var(--text);
      }
      .form-row {
        display: flex;
        gap: 12px;
      }
      .form-row .form-group {
        flex: 1;
      }
      .table-wrapper {
        overflow-x: auto;
      }
      table {
        width: 100%;
        border-collapse: collapse;
      }
      th {
        font-family: var(--font-mono);
        font-size: 10px;
        text-transform: uppercase;
        letter-spacing: 1px;
        color: var(--text-dim);
        text-align: left;
        padding: 8px 12px;
        border-bottom: 1px solid var(--border);
        white-space: nowrap;
        font-weight: 500;
      }
      td {
        padding: 10px 12px;
        border-bottom: 1px solid var(--border);
        font-size: 13px;
        white-space: nowrap;
      }
      td:last-child {
        white-space: nowrap;
        min-width: 100px;
      }
      tr:hover td {
        background: var(--bg-card-hover);
      }
      .mono {
        font-family: var(--font-mono);
        font-size: 12px;
      }
      .text-right {
        text-align: right;
      }
      .text-danger {
        color: var(--danger);
      }
      .text-success {
        color: var(--success);
      }
      .text-warning {
        color: var(--warning);
      }
      .text-muted {
        color: var(--text-muted);
      }
      .text-dim {
        color: var(--text-dim);
      }
      .badge {
        display: inline-block;
        font-family: var(--font-mono);
        font-size: 9px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        padding: 2px 8px;
        border-radius: 3px;
        border: 1px solid;
      }
      .badge-interval {
        border-color: var(--border);
        color: var(--text-muted);
      }
      .badge-credit {
        border-color: var(--warning-muted);
        color: var(--warning);
      }
      .badge-contract {
        border-color: var(--border);
        color: var(--accent);
      }
      .badge-warn {
        border-color: var(--danger-muted);
        color: var(--danger);
        background: rgba(220, 38, 38, 0.08);
      }
      .modal-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.7);
        z-index: 1000;
        backdrop-filter: blur(4px);
        align-items: center;
        justify-content: center;
      }
      .modal-overlay.active {
        display: flex;
      }
      .modal {
        background: var(--bg-modal);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 24px;
        width: 100%;
        max-width: 640px;
        max-height: 90vh;
        overflow-y: auto;
      }
      .modal-title {
        font-family: var(--font-mono);
        font-size: 13px;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 1.5px;
        margin-bottom: 20px;
      }
      .modal-footer {
        display: flex;
        justify-content: flex-end;
        gap: 8px;
        margin-top: 20px;
      }
      .budget-bar-container {
        margin: 16px 0;
      }
      .budget-bar {
        display: flex;
        height: 36px;
        border-radius: var(--radius);
        overflow: hidden;
        border: 1px solid var(--border);
        position: relative;
      }
      .budget-segment {
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: var(--font-mono);
        font-size: 10px;
        color: rgba(255, 255, 255, 0.85);
        letter-spacing: 0.5px;
        transition: opacity 0.15s;
        position: relative;
        user-select: none;
      }
      .budget-segment:hover {
        opacity: 0.85;
      }
      .budget-segment .segment-handle {
        position: absolute;
        right: -4px;
        top: 0;
        bottom: 0;
        width: 8px;
        cursor: col-resize;
        z-index: 10;
      }
      .budget-legend {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        margin-top: 12px;
      }
      .legend-item {
        display: flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
      }
      .legend-dot {
        width: 8px;
        height: 8px;
        border-radius: 2px;
        flex-shrink: 0;
      }
      .legend-value {
        font-family: var(--font-mono);
        font-size: 11px;
        color: var(--text-muted);
      }

      /* ===== budget usage (soll/ist) ===== */
      .budget-usage-row {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 6px;
      }
      .budget-usage-label {
        font-family: var(--font-mono);
        font-size: 10px;
        color: var(--text-dim);
        width: 120px;
        flex-shrink: 0;
        text-align: right;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }
      .budget-usage-track {
        flex: 1;
        height: 10px;
        background: var(--bg-input);
        border-radius: 3px;
        overflow: hidden;
        position: relative;
      }
      .budget-usage-fill {
        height: 100%;
        border-radius: 3px;
        transition: width 0.3s ease;
        opacity: 0.7;
      }
      .budget-usage-values {
        font-family: var(--font-mono);
        font-size: 10px;
        color: var(--text-muted);
        width: 160px;
        flex-shrink: 0;
        white-space: nowrap;
      }

      .stat-box {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 16px;
      }
      .stat-label {
        font-family: var(--font-mono);
        font-size: 9px;
        text-transform: uppercase;
        letter-spacing: 1px;
        color: var(--text-dim);
        margin-bottom: 6px;
      }
      .stat-value {
        font-family: var(--font-mono);
        font-size: 22px;
        font-weight: 600;
        color: var(--text);
      }
      .stat-sub {
        font-family: var(--font-mono);
        font-size: 10px;
        color: var(--text-dim);
        margin-top: 4px;
      }
      .upcoming-item {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 10px 0;
        border-bottom: 1px solid var(--border);
      }
      .upcoming-item:last-child {
        border-bottom: none;
      }
      .upcoming-days {
        font-family: var(--font-mono);
        font-size: 10px;
        padding: 2px 8px;
        border-radius: 3px;
        border: 1px solid;
      }
      .days-urgent {
        border-color: var(--danger-muted);
        color: var(--danger);
        background: rgba(220, 38, 38, 0.06);
      }
      .days-soon {
        border-color: var(--warning-muted);
        color: var(--warning);
        background: rgba(234, 179, 8, 0.06);
      }
      .days-ok {
        border-color: var(--border);
        color: var(--text-muted);
      }
      .sinking-bar-bg {
        height: 6px;
        background: var(--bg-input);
        border-radius: 3px;
        overflow: hidden;
        margin-top: 6px;
      }
      .sinking-bar-fill {
        height: 100%;
        border-radius: 3px;
        transition: width 0.3s ease;
      }
      .tab-btn {
        font-family: var(--font-mono);
        font-size: 11px;
        text-transform: uppercase;
        letter-spacing: 1px;
        padding: 10px 18px;
        background: none;
        border: none;
        color: var(--text-dim);
        cursor: pointer;
        border-bottom: 2px solid transparent;
        transition: all 0.15s ease;
      }
      .tab-btn:hover {
        color: var(--text-muted);
      }
      .tab-btn.active {
        color: var(--text);
        border-bottom-color: var(--text);
      }
      .tab-content {
        display: none;
      }
      .tab-content.active {
        display: block;
      }
      .empty-state {
        text-align: center;
        padding: 48px 20px;
        color: var(--text-dim);
        font-family: var(--font-mono);
        font-size: 12px;
        letter-spacing: 0.5px;
      }
      .credit-fields {
        display: none;
      }
      .credit-fields.active {
        display: block;
      }
      .section-divider {
        border: none;
        border-top: 1px solid var(--border);
        margin: 24px 0;
      }
      .chart-bar-container {
        margin: 8px 0;
      }
      .chart-bar-row {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 8px;
      }
      .chart-bar-label {
        font-family: var(--font-mono);
        font-size: 11px;
        color: var(--text-muted);
        width: 140px;
        flex-shrink: 0;
        text-align: right;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }
      .chart-bar-track {
        flex: 1;
        height: 16px;
        background: var(--bg-input);
        border-radius: 3px;
        overflow: hidden;
      }
      .chart-bar-fill {
        height: 100%;
        border-radius: 3px;
        transition: width 0.4s ease;
      }
      .chart-bar-value {
        font-family: var(--font-mono);
        font-size: 11px;
        color: var(--text);
        width: 80px;
        flex-shrink: 0;
      }
      #importInput {
        display: none;
      }
      tr.selected td {
        background: var(--bg-card-hover);
        box-shadow: inset 0 0 0 1px var(--border-focus);
      }
      .shortcut-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 0;
        border-bottom: 1px solid var(--border);
        font-size: 12px;
      }
      .shortcut-row:last-child {
        border-bottom: none;
      }
      .shortcut-key {
        font-family: var(--font-mono);
        font-size: 11px;
        background: var(--bg-input);
        border: 1px solid var(--border);
        border-radius: 3px;
        padding: 2px 8px;
        color: var(--text);
      }
      .badge-currency {
        border-color: var(--border-focus);
        color: var(--accent-bright);
        background: rgba(161, 161, 170, 0.08);
      }
      .badge-shared {
        border-color: #4f46e5;
        color: #818cf8;
        background: rgba(99, 102, 241, 0.08);
      }
      .savings-progress-bar {
        height: 8px;
        background: var(--bg-input);
        border-radius: 4px;
        overflow: hidden;
        margin: 8px 0;
      }
      .savings-progress-fill {
        height: 100%;
        border-radius: 4px;
        transition: width 0.3s ease;
      }
      .badge-ontrack {
        border-color: var(--success-muted);
        color: var(--success);
        background: rgba(34, 197, 94, 0.08);
      }
      .badge-offtrack {
        border-color: var(--danger-muted);
        color: var(--danger);
        background: rgba(220, 38, 38, 0.08);
      }
      .drag-handle {
        cursor: grab;
        user-select: none;
        color: var(--text-dim);
        font-size: 14px;
        width: 24px;
        text-align: center;
      }
      .drag-handle:hover {
        color: var(--text-muted);
      }
      tr.dragging {
        opacity: 0.4;
      }
      tr.drag-over td {
        border-top: 2px solid var(--accent-bright);
      }
      .scenario-delta-positive {
        color: var(--success);
        font-family: var(--font-mono);
        font-size: 11px;
      }
      .scenario-delta-negative {
        color: var(--danger);
        font-family: var(--font-mono);
        font-size: 11px;
      }
      .scenario-item-added {
        border-left: 3px solid var(--success);
        padding-left: 8px;
        margin-bottom: 8px;
        padding: 8px;
        background: var(--bg-input);
        border-radius: var(--radius);
      }
      .due-banner {
        background: var(--danger-muted);
        border: 1px solid var(--danger);
        border-radius: var(--radius);
        padding: 16px;
        margin-bottom: 16px;
      }

      /* ===== toggle switch ===== */
      .toggle-switch {
        position: relative;
        width: 36px;
        height: 20px;
        background: var(--border);
        border-radius: 10px;
        cursor: pointer;
        transition: background 0.2s ease;
        flex-shrink: 0;
      }
      .toggle-switch.active {
        background: var(--success);
      }
      .toggle-switch::after {
        content: '';
        position: absolute;
        top: 2px;
        left: 2px;
        width: 16px;
        height: 16px;
        background: var(--text);
        border-radius: 50%;
        transition: transform 0.2s ease;
      }
      .toggle-switch.active::after {
        transform: translateX(16px);
      }
      .scenario-toggle-item {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 8px 0;
        border-bottom: 1px solid var(--border);
        transition: opacity 0.2s ease;
      }
      .scenario-toggle-item:last-child {
        border-bottom: none;
      }
      .scenario-toggle-item.disabled {
        opacity: 0.4;
      }
      .scenario-toggle-item.disabled .scenario-toggle-name {
        text-decoration: line-through;
      }

      /* ===== toggle group (30/90 days) ===== */
      .toggle-group {
        display: flex;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
      }
      .upcoming-toggle-btn {
        padding: 4px 14px;
        font-family: var(--font-mono);
        font-size: 10px;
        background: transparent;
        border: none;
        color: var(--text-dim);
        cursor: pointer;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        transition: all 0.15s ease;
      }
      .upcoming-toggle-btn.active {
        background: var(--text);
        color: var(--bg);
      }
      .upcoming-toggle-btn:hover:not(.active) {
        color: var(--text-muted);
      }

      /* ===== scenario comparison table ===== */
      .scenario-comparison {
        display: grid;
        grid-template-columns: auto 1fr 1fr 1fr;
        gap: 0;
        margin: 8px 0;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
      }
      .sc-header {
        font-family: var(--font-mono);
        font-size: 9px;
        text-transform: uppercase;
        letter-spacing: 1px;
        color: var(--text-dim);
        padding: 8px 12px;
        background: var(--bg-input);
        text-align: right;
      }
      .sc-header:first-child {
        text-align: left;
      }
      .sc-label {
        font-family: var(--font-mono);
        font-size: 11px;
        color: var(--text-muted);
        padding: 8px 12px;
        border-top: 1px solid var(--border);
      }
      .sc-value {
        font-family: var(--font-mono);
        font-size: 12px;
        padding: 8px 12px;
        border-top: 1px solid var(--border);
        text-align: right;
      }

      /* ===== scenario toggle grid (2 col) ===== */
      .scenario-toggle-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0 20px;
      }

      .calendar-scroll-container {
        max-height: 300px;
        overflow-y: auto;
        padding-right: 4px;
      }
      @media (max-width: 768px) {
        .scenario-toggle-grid {
          grid-template-columns: 1fr;
        }
        .scenario-comparison {
          grid-template-columns: auto 1fr 1fr 1fr;
          font-size: 10px;
        }
      }
      @media (max-width: 640px) {
        .app-container {
          padding: 12px 12px 60px;
        }
        .app-header-inner {
          flex-direction: column;
          gap: 8px;
        }
        .header-left, .header-actions {
          position: static;
        }
        .header-nav {
          flex-wrap: wrap;
          justify-content: center;
        }
        .modal {
          margin: 12px;
          padding: 16px;
        }
        .form-row {
          flex-direction: column;
          gap: 0;
        }
        .stat-value {
          font-size: 18px;
        }
        .footer-stats {
          gap: 12px;
          flex-wrap: wrap;
        }
      }