:root {
  color-scheme: light;
  --bg: #f6f7f4;
  --surface: #ffffff;
  --surface-2: #eef3f0;
  --ink: #1f2925;
  --muted: #637069;
  --line: #d9dfda;
  --accent: #23745d;
  --accent-2: #0e5b9b;
  --danger: #b33442;
  --warn: #b06b18;
  --good: #267445;
  --shadow: 0 18px 45px rgba(31, 41, 37, 0.08);
}

* {
  box-sizing: border-box;
}

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

button,
input {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  padding: 24px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-end;
  max-width: 1320px;
  margin: 0 auto 18px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.12;
}

.topbar p {
  margin-top: 8px;
  color: var(--muted);
}

.top-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

button,
.file-button {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 8px;
  min-height: 40px;
  padding: 0 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

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

input[type="file"] {
  display: none;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 340px) 1fr;
  gap: 18px;
  max-width: 1320px;
  margin: 0 auto;
}

.settings-panel,
.main-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.settings-panel {
  padding: 18px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.panel-head span,
.status-pill,
.tag {
  color: var(--muted);
  background: var(--surface-2);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  white-space: nowrap;
}

.control-grid {
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

input[type="number"] {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 10px;
  color: var(--ink);
  background: #fff;
}

select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 10px;
  color: var(--ink);
  background: #fff;
}

.hidden {
  display: none;
}

.primary-action {
  width: 100%;
  margin-top: 16px;
  color: #fff;
  border-color: var(--accent);
  background: var(--accent);
  font-weight: 700;
}

.format-box {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.format-box h3 {
  font-size: 15px;
}

.format-box p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  word-break: break-word;
}

.main-panel {
  padding: 18px;
  min-width: 0;
}

.account-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.account-tab {
  min-width: 84px;
}

.account-tab.active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.summary-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr);
  gap: 12px;
}

.score-card,
.metric-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  min-height: 112px;
  display: grid;
  align-content: space-between;
}

.score-card {
  color: #fff;
  background: linear-gradient(135deg, #23745d, #0e5b9b);
  border-color: transparent;
}

.score-card span,
.metric-card span {
  font-size: 13px;
  color: inherit;
  opacity: 0.78;
}

.score-card strong,
.metric-card strong {
  font-size: 34px;
  line-height: 1;
}

.score-card small,
.metric-card small {
  color: inherit;
  opacity: 0.72;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 18px 0 14px;
}

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

.tab.active {
  color: #fff;
  background: var(--ink);
  border-color: var(--ink);
}

.view {
  display: none;
}

.active-view {
  display: block;
}

.alert-list,
.insight-list,
.asset-decay-list,
.competitor-list,
.task-list,
.recommendation-list,
.roadmap {
  display: grid;
  gap: 12px;
}

.alert-item,
.campaign-card,
.insight-card,
.asset-decay-card,
.competitor-card,
.insight-summary,
.task-card,
.recommendation-item,
.roadmap article,
.empty-state {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fff;
}

.insight-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 12px;
}

.insight-summary div {
  display: grid;
  gap: 6px;
}

.insight-summary span,
.mini-metrics span,
.task-card p {
  color: var(--muted);
}

.insight-summary strong {
  font-size: 18px;
}

.insight-card {
  display: grid;
  gap: 10px;
}

.insight-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.insight-head h3,
.task-card h3 {
  font-size: 17px;
  line-height: 1.35;
}

.insight-head p,
.insight-card p,
.task-card p {
  margin: 0;
}

.mini-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-metrics span {
  border: 1px solid var(--line);
  background: var(--surface-2);
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 12px;
}

.task-card {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 12px;
  align-items: flex-start;
}

.task-priority {
  min-height: 38px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  font-weight: 800;
}

.task-priority.p0 {
  background: var(--danger);
}

.task-priority.p1 {
  background: var(--warn);
}

.task-priority.p2 {
  background: var(--accent-2);
}

.task-action {
  margin-top: 8px;
  line-height: 1.55;
}

.campaign-card {
  display: grid;
  gap: 12px;
}

.campaign-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.campaign-head h3 {
  font-size: 18px;
  line-height: 1.3;
}

.campaign-head p {
  margin-top: 5px;
  color: var(--muted);
}

.campaign-metrics {
  display: grid;
  gap: 10px;
}

.campaign-metric {
  display: grid;
  grid-template-columns: minmax(160px, 0.9fr) minmax(220px, 1.3fr) minmax(120px, 0.7fr);
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
}

.campaign-metric strong {
  display: block;
}

.campaign-metric span,
.campaign-metric p {
  color: var(--muted);
  line-height: 1.45;
}

.campaign-metric p {
  margin: 0;
}

.alert-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.alert-title {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.alert-title h3 {
  font-size: 17px;
}

.severity-high {
  color: #fff;
  background: var(--danger);
}

.severity-medium {
  color: #fff;
  background: var(--warn);
}

.alert-meta,
.recommendation-item p,
.roadmap p {
  color: var(--muted);
  line-height: 1.55;
}

.sparkline {
  min-width: 168px;
  height: 54px;
  display: flex;
  align-items: flex-end;
  gap: 5px;
}

.sparkline span {
  flex: 1;
  min-width: 10px;
  border-radius: 4px 4px 0 0;
  background: var(--accent-2);
}

.sparkline.compact {
  min-width: 120px;
  height: 42px;
}

.recommendation-item h3,
.roadmap h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.recommendation-item ul {
  margin: 8px 0 0;
  padding-left: 20px;
  color: var(--ink);
  line-height: 1.6;
}

@media (max-width: 920px) {
  .topbar,
  .toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .workspace,
  .summary-grid,
  .insight-summary {
    grid-template-columns: 1fr;
  }

  .top-actions {
    justify-content: flex-start;
  }

  .alert-item {
    grid-template-columns: 1fr;
  }

  .campaign-metric {
    grid-template-columns: 1fr;
  }

  .sparkline {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .app-shell {
    padding: 14px;
  }

  .settings-panel,
  .main-panel {
    padding: 14px;
  }

  button,
  .file-button {
    width: 100%;
  }
}