:root {
  --bg: #f3f7fd;
  --panel: #ffffff;
  --ink: #0f2342;
  --subtle: #5d6f8f;
  --brand-blue: #0f4ca8;
  --brand-blue-deep: #082d69;
  --brand-gold: #cc9b47;
  --ok: #0e9f6e;
  --warn: #d97706;
  --err: #dc2626;
  --border: #d8e0ef;
  --shadow: 0 10px 28px rgba(15, 35, 66, 0.1);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 0% 0%, rgba(15, 76, 168, 0.12) 0, transparent 30%),
    radial-gradient(circle at 95% 5%, rgba(204, 155, 71, 0.16) 0, transparent 28%),
    var(--bg);
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 14px;
}

.topbar {
  background: linear-gradient(130deg, var(--brand-blue-deep), var(--brand-blue));
  color: #fff;
  border-radius: var(--radius);
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 330px 1fr;
  gap: 16px;
  box-shadow: var(--shadow);
}

.brand-block h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: 0.04em;
}

.brand-block p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 13px;
}

.topbar-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr)) auto;
  gap: 10px;
  align-items: end;
}

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

.field.inline {
  color: #fff;
}

.field > span,
.field label > span {
  font-size: 12px;
  color: var(--subtle);
}

.field.inline > span {
  color: rgba(255, 255, 255, 0.84);
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  background: #fff;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn.primary {
  background: linear-gradient(100deg, var(--brand-gold), #e0b46b);
  color: #2f2000;
  font-weight: 600;
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.92);
  color: var(--brand-blue-deep);
  border: 1px solid rgba(15, 76, 168, 0.2);
}

.btn.danger {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.save-status {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.84);
  justify-self: end;
  align-self: center;
}

.layout {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 290px 1fr 360px;
  gap: 12px;
}

.left-panel,
.right-panel,
.canvas-panel,
.diagnostics {
  min-width: 0;
}

.panel-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: 0 6px 18px rgba(15, 35, 66, 0.08);
}

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

.panel-card + .panel-card {
  margin-top: 12px;
}

.subtle {
  margin: 6px 0 10px;
  color: var(--subtle);
  font-size: 12px;
}

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

.palette button {
  background: #eef3fc;
  color: var(--brand-blue-deep);
  border: 1px solid #cfdbf2;
  border-radius: 10px;
  padding: 8px;
  font-size: 12px;
  cursor: pointer;
}

.rules-list {
  margin: 0;
  padding-left: 16px;
  display: grid;
  gap: 5px;
  color: var(--subtle);
  font-size: 12px;
}

.canvas-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.panel-header {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.canvas-area {
  flex: 1;
  min-height: 560px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(15, 76, 168, 0.09), rgba(204, 155, 71, 0.05)),
    #ffffff;
  overflow: auto;
}

.template-root {
  display: grid;
  gap: 10px;
}

.template-title {
  margin: 0;
  text-align: center;
  font-size: 20px;
  color: var(--brand-blue-deep);
}

.template-subtitle {
  text-align: center;
  color: var(--subtle);
  margin: 0 0 6px;
  font-size: 12px;
}

.template-band {
  border-radius: 14px;
  border: 1px solid #a9c0e7;
  background: linear-gradient(145deg, rgba(15, 76, 168, 0.12), rgba(15, 76, 168, 0.05));
  padding: 10px;
  display: grid;
  gap: 8px;
}

.template-band.gold {
  background: linear-gradient(145deg, rgba(204, 155, 71, 0.2), rgba(204, 155, 71, 0.08));
  border-color: #d7be8f;
}

.template-band.deep {
  background: linear-gradient(145deg, rgba(8, 45, 105, 0.22), rgba(8, 45, 105, 0.08));
  border-color: #8eadde;
}

.band-title {
  margin: 0;
  color: var(--brand-blue-deep);
  font-weight: 600;
  font-size: 14px;
}

.template-band.deep .band-title {
  color: #e6f0ff;
}

.slot-grid {
  display: grid;
  gap: 8px;
}

.slot-grid.col-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.slot-grid.col-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.slot-grid.col-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.slot-grid.col-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.slot {
  background: rgba(255, 255, 255, 0.9);
  border: 1px dashed #b7c7e5;
  border-radius: 12px;
  padding: 8px;
  min-height: 72px;
  display: grid;
  gap: 6px;
}

.template-band.deep .slot {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.4);
}

.slot.active {
  outline: 2px solid var(--brand-gold);
}

.slot-header {
  font-size: 12px;
  color: var(--subtle);
}

.template-band.deep .slot-header {
  color: rgba(255, 255, 255, 0.84);
}

.slot-body {
  display: grid;
  gap: 6px;
}

.node-card {
  background: #ffffff;
  border: 1px solid #9fb7de;
  border-radius: 9px;
  padding: 7px;
  cursor: pointer;
  display: grid;
  gap: 4px;
}

.template-band.deep .node-card {
  background: rgba(255, 255, 255, 0.92);
}

.node-card.selected {
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 2px rgba(204, 155, 71, 0.25);
}

.node-card[draggable="true"] {
  user-select: none;
}

.node-title {
  font-size: 13px;
  font-weight: 600;
}

.node-meta {
  font-size: 11px;
  color: var(--subtle);
}

.node-empty {
  font-size: 12px;
  color: var(--subtle);
}

.node-form {
  display: grid;
  gap: 10px;
}

.two-col {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.relation-builder .relation-row {
  display: grid;
  grid-template-columns: 1fr 120px auto;
  gap: 8px;
}

.link-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 4px;
  max-height: 130px;
  overflow: auto;
}

.diagnostics {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  box-shadow: 0 6px 18px rgba(15, 35, 66, 0.08);
}

.diagnostics-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.badge {
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.badge.pass {
  background: #d1fae5;
  color: #065f46;
}

.badge.warn {
  background: #ffedd5;
  color: #9a3412;
}

.badge.error {
  background: #fee2e2;
  color: #991b1b;
}

.diagnostics-list {
  margin-top: 8px;
  display: grid;
  gap: 6px;
  max-height: 180px;
  overflow: auto;
}

.diagnostic-item {
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 13px;
}

.diagnostic-item.error {
  background: #fef2f2;
  border-color: #fecaca;
}

.diagnostic-item.warning {
  background: #fff7ed;
  border-color: #fed7aa;
}

.diagnostic-item.pass {
  background: #ecfdf5;
  border-color: #a7f3d0;
}

.mobile-only {
  display: none;
}

.report-mount {
  position: fixed;
  left: -9999px;
  top: 0;
  width: 794px;
  background: #fff;
  color: #0f172a;
}

.report-root {
  width: 794px;
  padding: 24px;
  display: grid;
  gap: 16px;
}

.report-cover {
  min-height: 420px;
  border: 2px solid #204b87;
  border-radius: 14px;
  padding: 22px;
  background: linear-gradient(160deg, #eff6ff, #fff7ed);
}

.report-cover h1 {
  margin: 0;
  color: #1e3a8a;
}

.report-card {
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  padding: 12px;
}

.report-card h2 {
  margin: 0 0 8px;
  color: #1e3a8a;
}

.report-grid {
  display: grid;
  gap: 8px;
}

.report-kpi-table {
  width: 100%;
  border-collapse: collapse;
}

.report-kpi-table th,
.report-kpi-table td {
  border: 1px solid #dbe3f0;
  padding: 6px;
  font-size: 12px;
  text-align: left;
}

.report-overview-image {
  width: 100%;
  border: 1px solid #dbe3f0;
  border-radius: 10px;
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  font-size: 12px;
}

@media (max-width: 1380px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .topbar-controls {
    grid-template-columns: 1fr 1fr;
  }

  .save-status {
    justify-self: start;
  }
}

@media (max-width: 1199px) {
  .layout {
    grid-template-columns: 260px 1fr;
  }

  .right-panel {
    position: fixed;
    top: 0;
    right: -380px;
    width: min(92vw, 360px);
    height: 100vh;
    background: #f8fbff;
    padding: 12px;
    z-index: 20;
    overflow: auto;
    transition: right 0.25s ease;
    border-left: 1px solid var(--border);
  }

  .right-panel.open {
    right: 0;
  }

  .mobile-only {
    display: inline-block;
  }
}

@media (max-width: 920px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .left-panel {
    order: 2;
  }

  .canvas-panel {
    order: 1;
  }

  .canvas-area {
    min-height: 420px;
  }

  .slot-grid.col-4,
  .slot-grid.col-5,
  .slot-grid.col-3,
  .slot-grid.col-2 {
    grid-template-columns: 1fr;
  }
}