styles.css

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-soft: #edf1f5;
  --ink: #15191e;
  --muted: #65707d;
  --faint: #8d98a6;
  --line: #dce2e8;
  --accent: #167c80;
  --accent-strong: #0d5558;
  --danger: #a84133;
  --shadow: 0 20px 50px rgba(20, 31, 43, 0.09);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  background:
    linear-gradient(120deg, rgba(22, 124, 128, 0.07), transparent 36%),
    var(--bg);
  color: var(--ink);
  font-family:
    Inter,
    "Noto Sans SC",
    "PingFang SC",
    "Microsoft YaHei",
    Arial,
    sans-serif;
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
  height: 100vh;
  padding: 30px;
  overflow: auto;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
}

.brand-block {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  animation: rise 520ms ease both;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-block h1 {
  margin: 0;
  font-size: 34px;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.brand-block p:last-child {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.control-group {
  display: grid;
  gap: 14px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  animation: rise 620ms ease both;
}

.control-group:nth-of-type(2) {
  animation-delay: 80ms;
}

.control-group:nth-of-type(3) {
  animation-delay: 140ms;
}

.group-head,
.section-head,
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.group-head {
  justify-content: flex-start;
}

.group-head span {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 900;
}

.group-head h2,
.section-head h2,
.topbar h2 {
  margin: 0;
  font-size: 18px;
}

.upload-zone {
  display: grid;
  gap: 8px;
  min-height: 150px;
  padding: 22px;
  align-content: center;
  border: 1px dashed #aab5c0;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--ink);
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.upload-zone:hover {
  border-color: var(--accent);
  background: #e7f2f3;
  transform: translateY(-1px);
}

.mockup-upload {
  min-height: 118px;
  border-style: solid;
  background: #f9fbfc;
}

.upload-zone input {
  display: none;
}

.upload-icon {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 28px;
  line-height: 1;
}

.upload-zone strong {
  font-size: 16px;
}

.upload-zone small {
  color: var(--muted);
  line-height: 1.45;
}

.button-row,
.top-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.primary,
.secondary {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 0 14px;
  font-size: 13px;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.primary {
  background: var(--accent);
  color: #fff;
}

.primary:hover,
.secondary:hover {
  transform: translateY(-1px);
}

.secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

.icon-button {
  min-width: 48px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.select-field {
  position: relative;
}

.select-field::after {
  content: "";
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(45deg);
  pointer-events: none;
}

select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0 44px 0 11px;
  background: #fff;
  color: var(--ink);
}

.template-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.metric-library {
  display: grid;
  gap: 14px;
}

.metric-library p {
  margin: 0 0 8px;
  color: var(--faint);
  font-size: 12px;
  font-weight: 900;
}

.metric-library div {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.metric-library div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.metric-chip {
  min-height: 32px;
  margin: 0 6px 8px 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 11px;
  background: #fff;
  color: var(--ink);
  font-size: 12px;
  font-weight: 850;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.metric-chip:hover,
.metric-chip.is-active {
  border-color: rgba(22, 124, 128, 0.72);
  background: #e9f6f6;
  color: var(--accent-strong);
  transform: translateY(-1px);
}

.template-card {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 3px 10px;
  min-height: 74px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
  color: var(--ink);
  text-align: left;
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.template-card:hover,
.template-card.is-active {
  border-color: rgba(22, 124, 128, 0.75);
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(20, 31, 43, 0.08);
}

.template-card.is-active {
  background: #f2fbfb;
}

.template-card strong {
  overflow: hidden;
  font-size: 13px;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.template-card small {
  grid-column: 2;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.mini-chart {
  grid-row: 1 / span 2;
  position: relative;
  display: flex;
  width: 40px;
  height: 40px;
  align-items: end;
  justify-content: center;
  gap: 4px;
  border-radius: 7px;
  background: var(--surface-soft);
  overflow: hidden;
}

.mini-chart i {
  display: block;
  border-radius: 3px 3px 0 0;
  background: var(--accent);
}

.bars i:nth-child(1) {
  width: 7px;
  height: 18px;
}

.bars i:nth-child(2) {
  width: 7px;
  height: 27px;
}

.bars i:nth-child(3) {
  width: 7px;
  height: 23px;
}

.stacked i {
  width: 8px;
  height: 28px;
  background: linear-gradient(to top, var(--accent) 0 50%, #d89a2b 50% 100%);
}

.line::before,
.area::before {
  content: "";
  position: absolute;
  inset: 9px 7px 10px;
  border-bottom: 3px solid var(--accent);
  border-left: 3px solid transparent;
  transform: skewY(-18deg);
}

.area::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 8px;
  height: 18px;
  background: linear-gradient(to top, rgba(22, 124, 128, 0.35), rgba(22, 124, 128, 0.02));
  clip-path: polygon(0 80%, 30% 45%, 63% 62%, 100% 20%, 100% 100%, 0 100%);
}

.pie,
.rose {
  background: conic-gradient(var(--accent) 0 42%, #d89a2b 42% 68%, #2c5f9e 68% 100%);
}

.pie::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  background: #fff;
}

.rose {
  border-radius: 50%;
  transform: scale(0.82);
}

.scatter {
  align-items: center;
}

.scatter i {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.scatter i:nth-child(1) {
  left: 9px;
  bottom: 9px;
}

.scatter i:nth-child(2) {
  left: 18px;
  bottom: 23px;
  background: #d89a2b;
}

.scatter i:nth-child(3) {
  right: 8px;
  bottom: 15px;
  background: #2c5f9e;
}

.scatter i:nth-child(4) {
  right: 15px;
  top: 8px;
}

.table-icon {
  display: grid;
  align-content: center;
  gap: 4px;
  padding: 8px;
}

.table-icon i {
  width: 100%;
  height: 5px;
  border-radius: 2px;
  background: linear-gradient(to right, var(--accent) 0 35%, #b7c0ca 35% 100%);
}

.radar-icon {
  background:
    linear-gradient(30deg, transparent 48%, rgba(22, 124, 128, 0.8) 49% 52%, transparent 53%),
    linear-gradient(90deg, transparent 48%, rgba(22, 124, 128, 0.8) 49% 52%, transparent 53%),
    radial-gradient(circle, transparent 0 37%, #b7c0ca 38% 41%, transparent 42% 61%, #b7c0ca 62% 65%, var(--surface-soft) 66%);
}

.heatmap-icon {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3px;
  padding: 8px;
}

.heatmap-icon i {
  width: 100%;
  height: 100%;
  border-radius: 2px;
}

.heatmap-icon i:nth-child(1) { background: #d7ecec; }
.heatmap-icon i:nth-child(2) { background: #167c80; }
.heatmap-icon i:nth-child(3) { background: #d89a2b; }
.heatmap-icon i:nth-child(4) { background: #2c5f9e; }

.funnel-icon {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 4px;
}

.funnel-icon i:nth-child(1) { width: 30px; height: 7px; }
.funnel-icon i:nth-child(2) { width: 22px; height: 7px; background: #d89a2b; }
.funnel-icon i:nth-child(3) { width: 14px; height: 7px; background: #2c5f9e; }

.gauge-icon,
.sunburst-icon,
.map-icon {
  border-radius: 50%;
}

.gauge-icon {
  background: conic-gradient(from 225deg, var(--accent) 0 62%, #dce2e8 62% 75%, transparent 75% 100%);
}

.treemap-icon {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 3px;
  padding: 7px;
}

.treemap-icon i {
  width: 100%;
  height: 100%;
}

.treemap-icon i:first-child {
  grid-row: 1 / 3;
}

.sunburst-icon {
  background: repeating-conic-gradient(var(--accent) 0 32deg, #d89a2b 32deg 64deg, #2c5f9e 64deg 96deg);
}

.sunburst-icon::after {
  content: "";
  position: absolute;
  inset: 13px;
  border-radius: 50%;
  background: #fff;
}

.boxplot-icon i {
  position: absolute;
  left: 12px;
  top: 12px;
  width: 16px;
  height: 16px;
  border: 3px solid var(--accent);
  border-radius: 2px;
  background: transparent;
}

.boxplot-icon::before,
.boxplot-icon::after {
  content: "";
  position: absolute;
  left: 19px;
  width: 2px;
  height: 9px;
  background: var(--accent);
}

.boxplot-icon::before { top: 5px; }
.boxplot-icon::after { bottom: 5px; }

.candle-icon i {
  width: 7px;
  height: 24px;
  border-radius: 2px;
  background: linear-gradient(to bottom, #2c5f9e 0 18%, var(--accent) 18% 80%, #2c5f9e 80% 100%);
}

.graph-icon,
.sankey-icon,
.parallel-icon,
.custom-icon {
  align-items: center;
}

.graph-icon i,
.custom-icon i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.sankey-icon i,
.parallel-icon i {
  width: 6px;
  height: 28px;
  border-radius: 999px;
}

.map-icon {
  background: radial-gradient(circle at 34% 42%, var(--accent) 0 17%, transparent 18%), radial-gradient(circle at 62% 56%, #d89a2b 0 16%, transparent 17%), var(--surface-soft);
}

.toggle-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0 10px;
  background: #fff;
  color: var(--ink);
}

.workspace {
  display: grid;
  gap: 24px;
  padding: 30px;
  min-width: 0;
}

.topbar,
.result-band,
.data-editor {
  animation: rise 700ms ease both;
}

.topbar {
  min-height: 74px;
  border-bottom: 1px solid var(--line);
}

.result-band {
  position: relative;
  min-height: 720px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle, rgba(141, 152, 166, 0.42) 1px, transparent 1px) 0 0 / 24px 24px,
    #eef2f5;
  box-shadow: var(--shadow);
}

.canvas-toolbar {
  position: absolute;
  left: 18px;
  top: 18px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(520px, calc(100% - 36px));
  min-height: 40px;
  border: 1px solid rgba(220, 226, 232, 0.92);
  border-radius: 8px;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  backdrop-filter: blur(12px);
}

.canvas-viewport {
  position: absolute;
  inset: 0;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
}

.canvas-viewport.is-panning {
  cursor: grabbing;
}

.canvas-world {
  position: absolute;
  left: 0;
  top: 0;
  width: 1600px;
  height: 980px;
  transform-origin: 0 0;
  transition: transform 120ms ease;
}

.canvas-viewport.is-panning .canvas-world {
  transition: none;
}

.canvas-node {
  position: absolute;
  border: 1px solid rgba(196, 205, 215, 0.9);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 46px rgba(20, 31, 43, 0.14);
  overflow: hidden;
}

.node-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  border-bottom: 1px solid var(--line);
  padding: 0 14px;
  background: #f8fafb;
}

.node-head span {
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
}

.node-head small {
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mockup-node {
  left: 90px;
  top: 96px;
  width: 390px;
}

.mockup-stage {
  display: grid;
  min-height: 640px;
  place-items: center;
  background: #101820;
}

.mockup-stage img {
  display: block;
  width: 100%;
  max-height: 760px;
  object-fit: contain;
  background: #fff;
}

.mockup-placeholder {
  display: grid;
  gap: 10px;
  width: 78%;
  place-items: center;
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
}

.mockup-placeholder strong {
  color: #fff;
  font-size: 18px;
}

.mockup-placeholder span {
  font-size: 13px;
  line-height: 1.6;
}

.metrics-node {
  left: 540px;
  top: 96px;
  width: 820px;
}

.chart-node {
  left: 540px;
  top: 300px;
  width: 820px;
}

.kpi-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 14px;
}

.kpi-card {
  min-height: 98px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fff;
  box-shadow: 0 12px 26px rgba(20, 31, 43, 0.05);
}

.kpi-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--faint);
  font-size: 12px;
  font-weight: 900;
}

.kpi-card strong {
  display: block;
  color: var(--ink);
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1;
}

.kpi-card small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.chart-stage {
  min-width: 0;
  background: var(--surface);
  overflow: hidden;
}

#chart {
  width: 100%;
  height: 100%;
  min-height: 430px;
}

.inspector,
.data-editor {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
}

.inspector {
  left: 1390px;
  top: 96px;
  width: 260px;
  padding: 20px;
}

.panel-label {
  margin: 0 0 20px;
  color: var(--faint);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

dl {
  display: grid;
  gap: 16px;
  margin: 0;
}

dl div {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

dt {
  margin-bottom: 7px;
  color: var(--faint);
  font-size: 12px;
  font-weight: 800;
}

dd {
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  font-weight: 850;
  line-height: 1.35;
  word-break: break-word;
}

.preview-frame {
  margin-top: 20px;
}

.preview-frame p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.preview-frame img {
  display: block;
  width: 100%;
  max-height: 180px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.data-editor {
  min-width: 0;
  padding: 20px;
}

.table-wrap {
  width: 100%;
  margin-top: 16px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  background: #fff;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0;
  text-align: left;
  vertical-align: top;
}

th {
  padding: 12px;
  background: #f0f4f7;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

td input {
  width: 100%;
  min-height: 42px;
  border: 0;
  padding: 0 12px;
  background: transparent;
  color: var(--ink);
}

td input:focus {
  outline: 2px solid rgba(22, 124, 128, 0.22);
  outline-offset: -2px;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 5;
  max-width: min(360px, calc(100vw - 44px));
  padding: 13px 15px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.45;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    height: auto;
  }

  .result-band {
    min-height: 680px;
  }

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

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding-bottom: 20px;
  }
}

@media (max-width: 620px) {
  .sidebar,
  .workspace {
    padding: 20px;
  }

  .brand-block h1 {
    font-size: 26px;
    line-height: 1.18;
  }

  .toggle-grid,
  .template-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  #chart {
    min-height: 390px;
  }

  .kpi-strip {
    grid-template-columns: 1fr;
  }

  .top-actions {
    width: 100%;
  }

  .top-actions .primary {
    flex: 1 1 180px;
  }
}