:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #17202a;
  --muted: #65717f;
  --line: #d9dee5;
  --accent: #216e67;
  --accent-2: #345995;
  --warn: #b35c00;
  --danger: #a83232;
  --ok: #2f7d32;
  --shadow: 0 8px 24px rgba(16, 24, 40, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
}

button,
.file-button {
  min-height: 36px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 6px;
  padding: 0 12px;
  font: inherit;
  cursor: pointer;
}

button:hover,
.file-button:hover {
  border-color: var(--accent);
}

button.danger {
  color: var(--danger);
}

.file-button input {
  display: none;
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.topbar h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0;
}

.topbar p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.steps-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 14px;
  max-width: 1480px;
  margin: 0 auto;
}

.input-area {
  display: grid;
  grid-template-columns: minmax(180px, 230px) minmax(0, 1fr);
  gap: 14px;
}

.sidebar,
.editor,
.results,
.timeline-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  min-width: 0;
}

.sidebar,
.editor,
.results {
  min-height: 520px;
}

.timeline-panel {
  grid-column: 1 / -1;
  padding-bottom: 16px;
}

.results {
  grid-column: 1 / -1;
  min-height: 0;
}

.panel-heading,
.steps-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px;
  border-bottom: 1px solid var(--line);
}

.panel-heading h2,
.steps-header h2 {
  margin: 0;
  font-size: 16px;
}

.subheading {
  border-top: 1px solid var(--line);
}

.product-list {
  padding: 10px;
  display: grid;
  gap: 8px;
}

.product-item {
  width: 100%;
  min-height: 48px;
  text-align: left;
  border-radius: 6px;
}

.product-item.active {
  border-color: var(--accent);
  background: #eaf4f2;
}

.product-item span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 12px;
  padding: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.field label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

input {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  font: inherit;
  background: #fff;
}

input:focus {
  outline: 2px solid rgba(33, 110, 103, 0.18);
  border-color: var(--accent);
}

.table-wrap {
  overflow-x: auto;
}

.steps-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
}

.steps-table th,
.steps-table td {
  border-bottom: 1px solid var(--line);
  padding: 8px;
  text-align: left;
}

.steps-table th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.steps-table input {
  min-width: 96px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 10px;
  padding: 14px;
}

.summary-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  min-height: 86px;
}

.summary-card strong {
  display: block;
  font-size: 24px;
  line-height: 1.15;
}

.summary-card span {
  color: var(--muted);
  font-size: 12px;
}

.summary-card.ok strong {
  color: var(--ok);
}

.summary-card.warn strong {
  color: var(--warn);
}

.warnings {
  padding: 0 14px 14px;
  display: grid;
  gap: 8px;
}

.warning {
  border-left: 4px solid var(--warn);
  background: #fff6eb;
  padding: 10px;
  border-radius: 6px;
}

.personnel-chart,
.material-chart {
  padding: 0 14px 14px;
}

.personnel-chart svg,
.material-chart svg {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.axis {
  stroke: #7d8790;
  stroke-width: 1.2;
}

.grid-line {
  stroke: #dfe5ea;
  stroke-width: 1;
}

.stock-area {
  fill: rgba(52, 89, 149, 0.1);
}

.stock-line {
  fill: none;
  stroke: var(--accent-2);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.capacity-line {
  fill: none;
  stroke: var(--ok);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.capacity-step-line {
  fill: none;
  stroke: var(--ok);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.stock-point {
  fill: #ffffff;
  stroke: var(--accent-2);
  stroke-width: 2;
}

.capacity-point {
  fill: #ffffff;
  stroke: var(--ok);
  stroke-width: 2;
}

.chart-legend text,
.stock-value-label,
.capacity-value-label {
  font-size: 12px;
  font-weight: 800;
}

.chart-legend text,
.stock-value-label {
  fill: var(--accent-2);
}

.capacity-value-label {
  fill: var(--ok);
}

.legend-stock {
  stroke: var(--accent-2);
  stroke-linecap: round;
  stroke-width: 2;
}

.legend-capacity {
  stroke: var(--ok);
  stroke-linecap: round;
  stroke-width: 2;
}

.personnel-step-line {
  fill: none;
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.personnel-grid-line {
  stroke: #edf1f5;
  stroke-width: 0.7;
}

.personnel-target-line {
  stroke: var(--warn);
  stroke-dasharray: 6 5;
  stroke-width: 2;
}

.personnel-point {
  fill: #ffffff;
  stroke: var(--accent);
  stroke-width: 2;
}

.personnel-value-label {
  fill: var(--accent);
  font-size: 12px;
  font-weight: 800;
  paint-order: stroke;
  stroke: #ffffff;
  stroke-width: 3px;
}

.personnel-axis-label {
  fill: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.legend-personnel {
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-width: 2;
}

.legend-personnel-target {
  stroke: var(--warn);
  stroke-dasharray: 6 5;
  stroke-linecap: round;
  stroke-width: 2;
}

.week-tick {
  stroke: var(--line);
  stroke-width: 1;
}

.week-label {
  fill: var(--muted);
  font-size: 11px;
  font-weight: 700;
}
.order-marker {
  stroke: var(--warn);
  stroke-dasharray: 6 5;
  stroke-width: 2;
}

.runout-marker {
  stroke: var(--danger);
  stroke-dasharray: 4 4;
  stroke-width: 2;
}

.stable-marker {
  stroke: var(--ok);
  stroke-dasharray: 2 5;
  stroke-width: 2;
}

.axis-label,
.marker-label {
  fill: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.order-label {
  fill: var(--warn);
}

.runout-label {
  fill: var(--danger);
}

.stable-label,
.capacity-axis-label {
  fill: var(--ok);
}

.ramp-bar-track {
  stroke: var(--line);
  stroke-linecap: round;
  stroke-width: 10;
}

.ramp-bar {
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-width: 10;
}

.ramp-bar.ready {
  stroke: var(--ok);
}

.ramp-bar.blocked {
  stroke: var(--warn);
}

.ramp-bar.unplannable {
  stroke: var(--danger);
  stroke-dasharray: 8 6;
}

.ramp-bar-end {
  fill: #ffffff;
  stroke: var(--accent);
  stroke-width: 2;
}

.ramp-label {
  fill: var(--text);
  font-size: 12px;
  font-weight: 700;
}

.chart-note {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
  margin-top: 8px;
}

.step-results {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 14px;
}

.step-result {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.step-result header {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 700;
}

.badge.ready {
  color: var(--ok);
  background: #eaf6eb;
}

.badge.training-needed {
  color: var(--accent-2);
  background: #eaf0fb;
}

.badge.unplannable {
  color: var(--danger);
  background: #fdecec;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.timeline {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 18px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background: var(--line);
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding-left: 28px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline-date {
  font-weight: 700;
}

.timeline-content {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
}

.timeline-content strong {
  display: block;
}

.timeline-content span {
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 1120px) {
  .input-area {
    grid-template-columns: 200px minmax(0, 1fr);
  }

  .form-grid,
  .summary-grid {
    grid-template-columns: repeat(2, minmax(160px, 1fr));
  }

  .step-results {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .toolbar {
    justify-content: flex-start;
  }

  .workspace,
  .input-area,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .summary-grid,
  .step-results {
    grid-template-columns: 1fr;
  }

  .sidebar,
  .editor,
  .results {
    min-height: 0;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}