/* Design tokens — rem scale, 16px root */
:root {
  --bg: #f4f5f7;
  --surface: #fff;
  --text: #1a1d23;
  --muted: #4d5666;
  --border: #d8dde6;
  --shadow: 0 1px 2px rgba(26, 29, 35, 0.06);
  --accent: #1e4b7a;
  --up: #0d7a4d;
  --down: #b42318;
  --up-bg: #e6f4ed;
  --down-bg: #fdecea;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.5rem;

  --leading-tight: 1.2;
  --leading-normal: 1.4;

  --weight-normal: 400;
  --weight-semibold: 600;
  --weight-bold: 700;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;

  --radius: 0.625rem;
  --page-max: 75rem;
  --sidebar-width: 4.25rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  background: var(--bg);
  color: var(--text);
}

.app-shell {
  display: flex;
  gap: var(--space-4);
  min-height: 100vh;
  padding: var(--space-4);
}

.app-container {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 0.25rem);
  box-shadow: var(--shadow);
}

.hub-sidebar {
  position: sticky;
  top: var(--space-4);
  align-self: flex-start;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: var(--sidebar-width);
  height: calc(100vh - 2 * var(--space-4));
  padding: var(--space-4) var(--space-2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 0.25rem);
  box-shadow: var(--shadow);
  overflow: visible;
}

.hub-sidebar__logo {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-bottom: var(--space-5);
  color: var(--text);
  text-decoration: none;
}

.hub-sidebar__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
}

.hub-sidebar__nav-link {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  color: var(--muted);
  text-decoration: none;
  border-radius: 999px;
}

.hub-sidebar__nav-link:hover {
  color: var(--text);
  background: #f0f2f5;
}

.hub-sidebar__nav-link.is-active {
  color: #fff;
  background: #2f343d;
}

.hub-sidebar__user {
  position: relative;
  margin-top: auto;
}

.hub-sidebar__avatar {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  font: inherit;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.02em;
  color: var(--text);
  background: #eef0f3;
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
}

.hub-sidebar__ribbon {
  position: absolute;
  left: calc(100% + 0.55rem);
  bottom: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 0.55rem;
  white-space: nowrap;
  background: #f3f4f6;
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease, visibility 0.15s ease;
}

.hub-sidebar__user:hover .hub-sidebar__ribbon,
.hub-sidebar__user:focus-within .hub-sidebar__ribbon {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.hub-sidebar__ribbon-initials {
  padding-inline: 0.35rem 0.15rem;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
}

.hub-sidebar__ribbon-btn {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  color: var(--text);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
}

.hub-sidebar__ribbon-btn:hover:not(:disabled) {
  background: #fff;
  border-color: var(--border);
}

.hub-sidebar__ribbon-btn:disabled {
  opacity: 0.45;
  cursor: default;
}

.wrap {
  width: min(100% - 2 * var(--space-5), var(--page-max));
  margin-inline: auto;
}

.muted {
  font-weight: var(--weight-normal);
  color: var(--muted);
}

.panel {
  min-width: 0;
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-2);
  padding-block: var(--space-3);
}

.site-title {
  margin: 0;
  font-size: var(--text-base);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
}

.site-subtitle {
  margin: 0;
  font-size: var(--text-xs);
  line-height: var(--leading-tight);
}

.site-subtitle::before {
  content: "·";
  margin-right: var(--space-2);
}

/* Page */
.page {
  padding-block: var(--space-4) var(--space-5);
}

.page-header {
  margin-bottom: var(--space-5);
}

.tab-toolbar {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  margin-bottom: var(--space-3);
}

.filter-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: var(--muted);
  white-space: nowrap;
}

/* Pipe separator — one-off, intentionally not token-based */
.filter-divider {
  margin-inline: 0.15rem;
  font-size: 0.8125rem;
  font-weight: 200;
  line-height: 1;
  color: #c5cad3;
  user-select: none;
}

.filter-vs {
  flex-shrink: 0;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: var(--muted);
}

.filter-select,
.segment-select {
  min-width: 0;
  max-width: 100%;
  padding: 0.3em 1.5em 0.3em 0.5em;
  font: inherit;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: var(--text);
  background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234d5666' d='M2 4l4 4 4-4'/%3E%3C/svg%3E") no-repeat right 0.45em center;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 0.25rem);
  appearance: none;
  cursor: pointer;
}

.filter-select--segment {
  min-width: 7.5rem;
}

.filter-select--year {
  width: 4.75rem;
}

.filter-select--period {
  min-width: 6.75rem;
}

.filter-select--quarter {
  width: 3.75rem;
}

.filter-select:focus-visible,
.segment-select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 52rem) {
  .app-shell {
    flex-direction: column;
    padding: var(--space-3);
  }

  .hub-sidebar {
    position: static;
    flex-direction: row;
    width: 100%;
    height: auto;
    padding: var(--space-2) var(--space-3);
  }

  .hub-sidebar__logo {
    margin: 0 var(--space-3) 0 0;
  }

  .hub-sidebar__nav {
    flex-direction: row;
    flex: 1;
    justify-content: center;
  }

  .hub-sidebar__user {
    margin-top: 0;
  }

  .hub-sidebar__ribbon {
    left: auto;
    right: 0;
    bottom: calc(100% + 0.55rem);
  }

  .tab-toolbar {
    flex-wrap: wrap;
  }
}

.tab-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.tab-link {
  padding: 0.35em 0;
  margin-bottom: -1px;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: var(--muted);
  text-decoration: none;
  border-bottom: 3px solid transparent;
}

.tab-link.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.breadcrumb {
  margin-top: var(--space-2);
}

.breadcrumb-period {
  margin: 0;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
}

.breadcrumb-notes {
  margin: var(--space-1) 0 0;
  font-size: var(--text-xs);
  line-height: var(--leading-normal);
}

/* Summary cards */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin: 0;
}

.card {
  display: flex;
  flex-direction: column;
}

.card-title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  line-height: var(--leading-tight);
}

.card-value-row {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.card-value {
  margin: 0;
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.card-unit {
  font-size: var(--text-xs);
  line-height: var(--leading-tight);
}

.card-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-1);
  margin-top: auto;
  padding-top: var(--space-3);
}

.pill {
  display: inline-block;
  padding: 0.2em 0.65em;
  border-radius: 999px;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.pill--muted {
  font-weight: var(--weight-normal);
  color: var(--muted);
  background: var(--bg);
}

.pill--up {
  color: var(--up);
  background: var(--up-bg);
}

.pill--down {
  color: var(--down);
  background: var(--down-bg);
}

/* Charts */
.charts {
  margin-top: var(--space-5);
}

.section-title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
}

.section-hint {
  margin: 0 0 var(--space-3);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.chart-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.chart-card {
  margin: 0;
}

.chart-card figcaption {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: var(--text);
}

.chart-canvas-wrap {
  position: relative;
  height: clamp(11rem, 28vw, 14rem);
}

.chart-canvas-wrap canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

.chart-card--wide {
  grid-column: 1 / -1;
}

.chart-canvas-wrap--bridge {
  height: clamp(16rem, 40vw, 22rem);
}

.charts--bridge .chart-card--wide {
  margin: 0;
}

.bridge-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin: var(--space-3) 0 0;
  padding: 0;
  font-size: var(--text-sm);
  color: var(--muted);
  list-style: none;
}

.bridge-legend__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.bridge-legend__swatch {
  display: inline-block;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 2px;
}

.bridge-legend__swatch--increase {
  background: #2f4a73;
}

.bridge-legend__swatch--decrease {
  background: #e8743b;
}

.bridge-legend__swatch--total {
  background: #3d7c47;
}

@media (min-width: 40rem) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 48rem) {
  .chart-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .cards {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 75rem) {
  .chart-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Login page — hub-style split card */
.login-page {
  min-height: 100vh;
  background: #ececec;
}

.login-shell {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: var(--space-6);
}

.login-card {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  width: min(100%, 58rem);
  min-height: 34rem;
  overflow: hidden;
  background: var(--surface);
  border-radius: 1.25rem;
  box-shadow: 0 18px 48px rgba(26, 29, 35, 0.12);
}

.login-showcase {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
  color: #fff;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.08), transparent 45%),
    linear-gradient(145deg, #4a4a4a 0%, #2f2f2f 55%, #242424 100%);
}

.login-showcase__frame {
  flex: 1;
  display: grid;
  place-items: center;
  padding-block: var(--space-5);
}

.login-showcase__preview {
  width: min(100%, 18rem);
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0.875rem;
}

.login-showcase__eyebrow {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.login-showcase__preview-title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
}

.login-showcase__preview-copy {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: rgba(255, 255, 255, 0.78);
}

.login-showcase__caption {
  margin-top: auto;
}

.login-showcase__title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
}

.login-showcase__text {
  margin: 0;
  max-width: 22rem;
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: rgba(255, 255, 255, 0.78);
}

.login-showcase__dots {
  display: flex;
  gap: 0.4rem;
  margin-top: var(--space-5);
}

.login-showcase__dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
}

.login-showcase__dot.is-active {
  background: #fff;
}

.login-panel {
  display: grid;
  place-items: center;
  padding: var(--space-6);
  background: var(--surface);
}

.login-panel__inner {
  width: min(100%, 22rem);
}

.login-panel__title {
  margin: 0 0 var(--space-4);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: var(--weight-bold);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.login-panel__lead {
  margin: 0 0 var(--space-6);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--muted);
}

.login-form {
  margin: 0;
}

.login-sso-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  width: 100%;
  padding: 0.85rem 1.25rem;
  font: inherit;
  font-size: var(--text-base);
  color: var(--text);
  background: var(--surface);
  border: 1px solid #c8c8c8;
  border-radius: 999px;
  cursor: pointer;
}

.login-sso-button:hover {
  background: #fafafa;
  border-color: #b8b8b8;
}

.login-sso-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.login-sso-button__icon {
  flex-shrink: 0;
}

.login-panel__note {
  margin: var(--space-4) 0 0;
  font-size: var(--text-xs);
  text-align: center;
}

@media (max-width: 52rem) {
  .login-card {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .login-showcase {
    min-height: 16rem;
  }
}