:root {
  --bg: #f7f8fb;
  --panel: #ffffff;
  --ink: #1d2733;
  --muted: #637083;
  --line: #dce2ea;
  --teal: #16786f;
  --blue: #3f6fa8;
  --amber: #c58a1d;
  --coral: #c94f4f;
  --green: #2d7a5f;
  --shadow: 0 10px 28px rgba(38, 53, 71, 0.09);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

.app-shell {
  width: min(1440px, calc(100% - 32px));
  margin: 18px auto 40px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 280px;
}

.brand-logo {
  width: 112px;
  height: auto;
}

.page-nav {
  display: flex;
  flex: 1;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  min-width: 340px;
}

.nav-link {
  min-height: 36px;
  padding: 9px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  background: #f6f8fb;
  font-size: 0.8rem;
  font-weight: 800;
  text-decoration: none;
}

.nav-link.is-active {
  color: var(--ink);
  background: var(--panel);
  box-shadow: 0 3px 10px rgba(38, 53, 71, 0.12);
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--teal);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.05;
}

h2 {
  font-size: 1.15rem;
}

.filters {
  display: grid;
  grid-template-columns: repeat(2, minmax(150px, 1fr)) auto;
  gap: 12px;
  align-items: end;
}

.dashboard-filters {
  grid-template-columns: repeat(3, minmax(120px, 1fr)) auto;
  min-width: min(100%, 520px);
}

label span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

input,
select,
button {
  min-height: 40px;
  border-radius: 6px;
  font: inherit;
}

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

.year-filter {
  grid-template-columns: minmax(150px, 1fr) auto;
}

.availability-note {
  padding: 14px 16px;
  border: 1px solid #e5c56c;
  border-radius: 8px;
  background: #fff8df;
  color: #71551a;
  line-height: 1.45;
}

.is-hidden {
  display: none !important;
}

button {
  border: 0;
  padding: 9px 14px;
  background: var(--teal);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.page-nav button.nav-link {
  border: 1px solid var(--line);
  background: #f6f8fb;
  color: var(--muted);
}

.page-nav button.nav-link.is-active {
  background: var(--panel);
  color: var(--ink);
}

.ivdrips-ltv-view[hidden] {
  display: none !important;
}

.ltv-view-filters {
  margin-top: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.access-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.access-success {
  margin: 12px 0 0;
  padding: 10px 12px;
  border: 1px solid #9cd6c4;
  border-radius: 6px;
  background: #ecfbf6;
  color: #17664d;
  line-height: 1.45;
}

.access-form {
  display: grid;
  gap: 12px;
  max-width: 420px;
  margin-top: 18px;
}

.access-form button {
  justify-self: start;
}

main {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.status-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
}

.status-line strong {
  color: var(--ink);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.trend-kpi-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 14px;
}

#ltv-trend-panel {
  padding: 24px;
  border-color: rgba(220, 226, 234, 0.9);
  box-shadow: 0 8px 22px rgba(38, 53, 71, 0.07);
}

#ltv-trend-panel .panel-heading {
  margin-bottom: 20px;
}

#ltv-trend-panel .panel-context {
  align-self: end;
  font-size: 0.78rem;
}

#ltv-trend-panel .trend-kpi-grid {
  gap: 8px;
  margin-bottom: 20px;
}

#ltv-trend-panel .trend-kpi-grid .kpi-card {
  min-height: 92px;
  padding: 12px 14px;
  border: 0;
  background: #f3f5f8;
  box-shadow: none;
}

#ltv-trend-panel .trend-kpi-grid .kpi-card span {
  font-size: 0.68rem;
}

#ltv-trend-panel .trend-kpi-grid .kpi-card strong {
  font-size: clamp(1.2rem, 1.8vw, 1.65rem);
  font-weight: 600;
}

#ltv-trend-panel .trend-kpi-grid .kpi-card small {
  color: #7b8594;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.executive-panel {
  background:
    linear-gradient(135deg, rgba(22, 120, 111, 0.06), rgba(63, 111, 168, 0.04)),
    var(--panel);
}

.panel-context {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

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

.executive-card {
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 142px;
  padding: 15px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--blue);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
}

.executive-card-positive {
  border-top-color: var(--green);
}

.executive-card-watch {
  border-top-color: var(--amber);
}

.executive-card-risk {
  border-top-color: var(--coral);
}

.executive-card span {
  color: var(--muted);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.executive-card strong {
  font-size: clamp(1.45rem, 2.2vw, 2rem);
  line-height: 1.05;
}

.executive-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.4;
}

.kpi-card,
.answer-card,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.kpi-card {
  display: grid;
  gap: 7px;
  min-height: 112px;
  padding: 14px;
}

.answer-card {
  display: grid;
  align-content: start;
  gap: 8px;
  min-height: 176px;
  padding: 14px;
}

.answer-card h2 {
  font-size: 1rem;
  line-height: 1.25;
}

.answer-card p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.kpi-card span,
.kpi-card small,
th {
  color: var(--muted);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.kpi-card strong {
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  line-height: 1.08;
}

.kpi-card small {
  letter-spacing: 0;
  text-transform: none;
  font-weight: 600;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(360px, 0.65fr);
  gap: 16px;
}

.panel {
  min-width: 0;
  padding: 16px;
}

.panel-wide {
  min-height: 420px;
}

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

.chart-area {
  min-height: 180px;
  margin-bottom: 14px;
  overflow-x: auto;
}

.chart-area.compact {
  min-height: 220px;
}

.bar-chart {
  display: grid;
  grid-template-columns: repeat(10, minmax(42px, 1fr));
  gap: 10px;
  align-items: end;
  min-height: 210px;
}

.bar-cell {
  display: grid;
  grid-template-rows: auto 150px auto;
  gap: 6px;
  min-width: 0;
}

.bar-value,
.bar-label {
  color: var(--muted);
  font-size: 0.72rem;
  text-align: center;
  white-space: nowrap;
}

.bar-track {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  background: #edf1f5;
}

.bar-fill {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  border-radius: 6px 6px 0 0;
  background: linear-gradient(180deg, var(--blue), var(--teal));
}

.analysis-bar-chart {
  grid-template-columns: repeat(10, minmax(42px, 1fr));
}

.line-chart-wrap {
  position: relative;
  width: 100%;
  overflow-x: auto;
}

.line-chart {
  display: block;
  min-width: 940px;
  height: 280px;
}

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

.chart-grid-line {
  stroke: rgba(128, 128, 128, 0.14);
  stroke-dasharray: 3 3;
  stroke-width: 1;
}

.chart-tick {
  fill: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.line-chart-point-hit {
  fill: transparent;
  cursor: crosshair;
}

.line-chart-point {
  stroke: var(--panel);
  stroke-width: 2;
  pointer-events: none;
}

.line-chart-point-group:hover .line-chart-point,
.line-chart-point-group:focus .line-chart-point {
  stroke: var(--ink);
  stroke-width: 3;
}

.line-chart-tooltip {
  position: absolute;
  z-index: 3;
  display: grid;
  gap: 4px;
  max-width: 280px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  box-shadow: 0 10px 24px rgba(29, 39, 51, 0.12);
  font-size: 0.8rem;
  line-height: 1.35;
  pointer-events: none;
  white-space: normal;
}

.line-chart-tooltip[hidden] {
  display: none;
}

.line-chart-tooltip strong,
.line-chart-tooltip span {
  display: block;
}

.line-chart-tooltip span {
  color: var(--muted);
}

.ltv-trend-chart-wrap {
  margin-bottom: 18px;
}

.ltv-trend-chart-wrap .line-chart {
  height: 280px;
}

.line-chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.line-chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.line-chart-legend i {
  display: inline-block;
  width: 18px;
  height: 3px;
  border-radius: 999px;
}

.trend-window-tabs {
  display: inline-flex;
  gap: 6px;
  margin-bottom: 16px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.trend-tab-button {
  min-height: 34px;
  min-width: 56px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 700;
}

.trend-tab-button.is-active {
  color: #fff;
  box-shadow: none;
}

.trend-tab-button[data-window="6"].is-active {
  border-color: #D85A30;
  background: #D85A30;
}

.trend-tab-button[data-window="8"].is-active {
  border-color: #BA7517;
  background: #BA7517;
}

.trend-tab-button[data-window="12"].is-active {
  border-color: #185FA5;
  background: #185FA5;
}

.trend-window-table h3 {
  margin: 0 0 10px;
  font-size: 0.95rem;
}

.trend-window-table table {
  min-width: 520px;
}

.stack-track {
  display: flex;
  overflow: hidden;
  height: 22px;
  border-radius: 6px;
  background: #edf1f5;
}

.stack-track span {
  display: block;
}

.stack-legend {
  display: grid;
  gap: 9px;
  margin: 14px 0;
}

.stack-legend div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.stack-legend i {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border-radius: 50%;
}

.hbar-row {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 54px;
  gap: 10px;
  align-items: center;
  margin: 7px 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.hbar-track {
  overflow: hidden;
  height: 9px;
  border-radius: 999px;
  background: #edf1f5;
}

.hbar-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--amber);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

.client-table {
  max-height: 72vh;
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  padding: 10px 9px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
  white-space: nowrap;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--panel);
}

td {
  font-size: 0.9rem;
}

.year-group-row td {
  position: sticky;
  top: 37px;
  z-index: 1;
  padding: 8px 9px;
  background: #eef4f4;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.table-note,
.empty-state {
  padding: 8px 2px 12px;
  color: var(--muted);
  font-size: 0.86rem;
}

.tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f1f4f8;
}

.tab-button {
  min-height: 34px;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
}

.tab-button.is-active {
  background: var(--panel);
  color: var(--ink);
  box-shadow: 0 3px 10px rgba(38, 53, 71, 0.12);
}

@media (max-width: 1200px) {
  .kpi-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 18px, 1440px);
    margin-top: 9px;
  }

  .app-header,
  .brand-block,
  .page-nav,
  .filters {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .app-header,
  .brand-block,
  .page-nav {
    display: grid;
  }

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

  .answer-grid {
    grid-template-columns: 1fr;
  }

  .executive-grid {
    grid-template-columns: 1fr;
  }

  .bar-chart {
    grid-template-columns: repeat(5, minmax(44px, 1fr));
  }
}