:root {
  --ink: #202124;
  --muted: #657078;
  --line: #dfe4e8;
  --surface: #ffffff;
  --paper: #f6f8f9;
  --brand: #164f63;
  --brand-2: #2f8b7d;
  --accent: #d97706;
  --good: #188038;
  --bad: #b3261e;
  --shadow: 0 18px 45px rgba(37, 48, 55, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: #12343f;
  color: #f7fbfb;
  display: flex;
  flex-direction: column;
  padding: 24px 18px;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: #f2c14e;
  color: #12343f;
  border-radius: 8px;
  font-weight: 800;
}

.brand strong,
.brand span {
  display: block;
}

.brand span,
.sidebar-footer {
  color: #b8c9cd;
  font-size: 13px;
}

.nav-list {
  display: grid;
  gap: 6px;
}

.nav-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  align-items: center;
  min-height: 42px;
  border: 0;
  border-radius: 8px;
  padding: 0 12px;
  background: transparent;
  color: #d9e6e8;
  text-align: left;
}

.nav-item:hover,
.nav-item.active {
  background: rgba(255, 255, 255, 0.11);
  color: #fff;
}

.sidebar-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #53d769;
}

.workspace {
  min-width: 0;
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.eyebrow {
  color: var(--brand-2);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 0 0 5px;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.05;
}

h2 {
  font-size: 20px;
  margin-bottom: 6px;
}

p {
  color: var(--muted);
  line-height: 1.55;
}

.topbar-actions,
.button-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.primary-button,
.secondary-button,
.icon-button {
  border: 1px solid transparent;
  border-radius: 8px;
  min-height: 40px;
  padding: 0 14px;
  font-weight: 700;
}

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

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

.icon-button {
  width: 42px;
  padding: 0;
  font-size: 20px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.hero-panel {
  min-height: 260px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 42%);
  gap: 24px;
  align-items: end;
  padding: 30px;
  margin-bottom: 18px;
  background:
    linear-gradient(105deg, rgba(18, 52, 63, 0.98), rgba(22, 79, 99, 0.87)),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.16) 0 1px, transparent 1px 86px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 58px);
  background-size: cover;
  background-position: center;
  color: #fff;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-panel p,
.hero-panel .eyebrow {
  color: #e4f2f2;
}

.hero-panel h2 {
  font-size: clamp(40px, 7vw, 74px);
  line-height: 0.95;
  margin: 0 0 12px;
}

.hero-chart {
  height: 190px;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  align-items: end;
  gap: 10px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}

.hero-chart div {
  min-height: 24px;
  border-radius: 5px 5px 0 0;
  background: linear-gradient(#f2c14e, #54c6a3);
}

.kpi-grid,
.source-grid,
.automation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.kpi-card,
.source-card,
.panel,
.section-band {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.kpi-card,
.source-card {
  padding: 18px;
}

.kpi-card span,
.source-card span {
  color: var(--muted);
  font-size: 13px;
}

.kpi-card strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
}

.metric-change {
  margin-top: 10px;
  font-weight: 800;
  color: var(--good);
}

.metric-change.down {
  color: var(--bad);
}

.two-column,
.report-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(340px, 0.9fr);
  gap: 18px;
}

.panel,
.section-band {
  padding: 20px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
  margin-bottom: 14px;
}

.panel-header p {
  margin-bottom: 0;
}

select,
input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 10px 12px;
}

label {
  display: grid;
  gap: 7px;
  color: #39464d;
  font-weight: 700;
  margin-bottom: 14px;
}

textarea {
  min-height: 130px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}

th,
td {
  padding: 13px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.platform-name {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
}

.platform-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.trend-up {
  color: var(--good);
  font-weight: 800;
}

.trend-down {
  color: var(--bad);
  font-weight: 800;
}

.insight-list,
.rule-list {
  display: grid;
  gap: 10px;
}

.insight,
.rule {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px;
  background: #fbfcfc;
}

.insight strong,
.rule strong {
  display: block;
  margin-bottom: 4px;
}

.section-band {
  margin-bottom: 14px;
}

.section-band p {
  margin-bottom: 0;
}

.integration-panel {
  margin-bottom: 14px;
}

.integration-note {
  margin-bottom: 0;
}

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

.source-card {
  display: grid;
  gap: 14px;
}

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

.source-card strong {
  font-size: 18px;
}

.connection-pill {
  border-radius: 999px;
  padding: 4px 9px;
  background: #edf5ef;
  color: var(--good);
  font-size: 12px;
  font-weight: 800;
}

.connection-pill.off {
  background: #f2f4f5;
  color: var(--muted);
}

.import-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.report-builder {
  align-self: start;
}

fieldset {
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 0 0 14px;
  padding: 12px;
}

fieldset label,
.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

fieldset input,
.toggle-row input {
  width: auto;
}

.report-preview {
  min-height: 600px;
  overflow: auto;
}

.report-page {
  min-height: 600px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.report-cover {
  padding: 28px;
  background: #12343f;
  color: #fff;
  border-radius: 8px 8px 0 0;
}

.report-cover p,
.report-cover span {
  color: #d7e8ea;
}

.report-cover h2 {
  font-size: 34px;
  margin-bottom: 16px;
}

#previewContent {
  padding: 24px 28px 30px;
}

#previewContent ul {
  padding-left: 20px;
}

.automation-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
}

.settings-panel {
  max-width: 680px;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  max-width: min(360px, calc(100vw - 32px));
  padding: 13px 15px;
  border-radius: 8px;
  background: #202124;
  color: #fff;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1060px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 2;
    display: block;
    padding: 14px;
  }

  .brand,
  .sidebar-footer {
    display: none;
  }

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

  .nav-item {
    flex: 1 1 150px;
    white-space: nowrap;
  }

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

  .two-column,
  .report-layout,
  .automation-grid,
  .hero-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .workspace {
    padding: 18px;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

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

  .hero-panel {
    padding: 22px;
  }

  .import-box {
    grid-template-columns: 1fr;
  }
}