:root {
  --navy: #00176b;
  --navy-soft: rgba(0, 23, 107, 0.08);   /* very light */
  --navy-grey: rgba(0, 23, 107, 0.30);   /* your 30% grey */
  --white: #ffffff;
  --black: #000000;

  --bg: var(--white);
  --surface: var(--white);
  --border: var(--navy-grey);
  --primary: var(--navy);
  --primary-soft: var(--navy-soft);
  --text: var(--black);
  --muted: var(--navy-grey);
}

/* RESET + BASE */

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

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: var(--bg);
  color: var(--text);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow-y: auto;
}

/* TOP BAR / HEADER */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.7rem 1.5rem;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

/* Homepage hero */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3.2rem 1.5rem;
  background: linear-gradient(180deg, rgba(0,23,107,0.03), rgba(0,23,107,0.00));
}
.hero-inner {
  max-width: 920px;
  text-align: center;
}
.hero-title {
  margin: 0 0 0.6rem 0;
  color: var(--navy);
  font-size: 2rem;
  font-weight: 700;
}
.hero-sub {
  margin: 0 0 1rem 0;
  color: var(--muted);
  font-size: 1rem;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.6rem;
}
.hero-btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  padding: 0.9rem 1.4rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(0,23,107,0.08);
}
.hero-btn:hover {
  transform: translateY(-3px);
}
.hero-secondary {
  display: inline-block;
  border: 1px solid var(--navy);
  background: var(--white);
  color: var(--navy);
  padding: 0.85rem 1.3rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(0,23,107,0.05);
}
.hero-secondary:hover {
  background: var(--navy-soft);
  transform: translateY(-3px);
}
/* Feature / Background panel under hero */
.feature {
  padding: 1.6rem 1.5rem 2rem;
  background: #fff;
}
.feature-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.feature-panel {
  display: flex;
  gap: 1rem;
  background: var(--navy);
  color: var(--white);
  border-radius: 6px;
  padding: 1rem 1rem;
  box-shadow: 0 8px 20px rgba(0,0,0,0.06);
  align-items: stretch;
}
.feature-left {
  width: 84px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start; /* align letters at top */
  padding: 12px 0 6px 0;
  gap: 6px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
}
.feature-left span { display:block; font-size:20px; line-height:1; }
.feature-right { flex: 1 1 auto; padding: 0.8rem 1rem; }
.feature-heading { margin: 0 0 0.6rem 0; color: var(--white); font-size: 1.1rem; letter-spacing: 0.12em; text-transform: uppercase; }
.feature-lead { margin: 0 0 0.6rem 0; color: var(--white); opacity: 0.98; text-align: justify; text-justify: inter-word; -webkit-hyphens: auto; -ms-hyphens: auto; hyphens: auto; }

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  align-items: start;
}
.grid-text { padding: 0.4rem; color: var(--black); }
.grid-text p { text-align: justify; text-justify: inter-word; -webkit-hyphens: auto; -ms-hyphens: auto; hyphens: auto; }

@media (max-width: 800px) {
  .feature-panel { flex-direction: row; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-left { width: 64px; }
}

.home-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  background: transparent;
  text-decoration: none;
}

.home-btn:hover {
  transform: translateY(-1px);
}

.home-icon {
  display: block;
  width: clamp(72px, 14vw, 180px);
  height: auto;
}


.brand-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--navy);
}

.brand-sub {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.top-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--navy-grey);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy);
  background: var(--white);
}

/* NAV BAR / FILTERS */

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 1.5rem 0.4rem;
  border-bottom: 1px solid var(--border);
  background: #f8fafc;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.nav-right {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nav-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted);
}

.pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.pill {
  border: 1px solid var(--navy-grey);
  background: var(--white);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.7rem;
  cursor: pointer;
  color: var(--navy);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease,
    transform 0.1s ease;
}

.pill:hover {
  background: var(--navy-soft);
  border-color: var(--navy);
  transform: translateY(-0.5px);
}

.pill.active {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.nav-input {
  min-width: 120px;
  padding: 0.3rem 0.5rem;
  font-size: 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--navy-grey);
  background: var(--white);
  color: var(--black);
}

.nav-input[multiple] {
  min-width: 160px;
  min-height: 2.1rem;
}

.nav-input:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 1px var(--navy-soft);
}

.btn-secondary {
  border-radius: 999px;
  border: 1px solid var(--navy-grey);
  background: var(--white);
  padding: 0.3rem 0.9rem;
  font-size: 0.75rem;
  cursor: pointer;
  color: var(--navy);
  transition: background 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.btn-secondary:hover {
  background: var(--navy-soft);
  transform: translateY(-0.5px);
  box-shadow: 0 7px 16px rgba(0, 0, 0, 0.1);
}

/* DASHBOARD – TOP / MIDDLE / BOTTOM */

.dashboard {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1rem 1.5rem 1.8rem;
  flex: 1 1 auto;
  min-height: 0;
}

/* Home shell ensures footer stays in view while content scrolls */
.home-shell {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

/* CARDS */

.card {
  background: var(--surface);
  border-radius: 14px;
  border: none;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
  padding: 0.85rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.card-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--navy);
}

.card-sub {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.4;
}

.chart-container {
  margin-top: 0.4rem;
  min-height: 250px;
}

/* INFO TEXT BELOW EACH CHART */

.chart-info {
  margin-top: 0.35rem;
  font-size: 0.75rem;
  color: var(--muted);
  min-height: 1.1rem;
}

.chart-info strong {
  color: var(--black);
}

.chart-note {
  margin-top: 0.15rem;
  font-size: 0.72rem;
  color: var(--muted);
  font-style: italic;
}

/* FOOTER */

.footer {
  padding: 0.9rem 1.5rem 1.4rem;
  font-size: 0.7rem;
  background: var(--navy);
  color: var(--white);
  margin-top: auto;
  border-radius: 6px 6px 0 0;
}

/* Center footer text and style the small copy line */
.footer { text-align: center; }
.footer .footer-source { font-size: 0.78rem; opacity: 0.95; }
.footer .footer-copy { margin-top: 0.4rem; font-size: 0.85rem; opacity: 0.95; }

/* TOOLTIP */

.map-tooltip {
  z-index: 30;
}

/* CLICK SELECTION STYLES */

.bar.selected {
  stroke: #000000;
  stroke-width: 2px;
}

.pareto-point.selected {
  r: 5;
  stroke: #000000;
  stroke-width: 1.5px;
}

.state-region.selected {
  stroke: #000000;
  stroke-width: 2px;
}

.axis-year.selected {
  font-weight: 700;
  fill: #00176b;
}

.selection-line {
  stroke: #00176b;
  stroke-width: 1.5px;
  stroke-dasharray: 4 3;
}

/* RESPONSIVE */

@media (max-width: 900px) {
  .nav-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-right {
    width: 100%;
  }

  .nav-input[multiple],
  .nav-input {
    width: 100%;
  }
}

@media (max-width: 720px) {
  .dashboard {
    padding: 0.85rem 1rem 1.25rem;
  }
  .topbar {
    padding: 0.65rem 1rem 0.75rem;
    gap: 0.75rem;
  }
  .home-icon {
    width: clamp(64px, 18vw, 140px);
  }
  .brand-title {
    font-size: 1.05rem;
  }
  .brand-sub {
    font-size: 0.78rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn-secondary,
  .hero-actions .hero-btn,
  .hero-actions .hero-secondary {
    width: 100%;
    text-align: center;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-card {
    padding: 0.85rem 0.95rem 1rem;
  }
  .about-meta {
    flex-wrap: wrap;
    row-gap: 0.25rem;
  }
  .about-panel {
    padding: 10px 12px;
  }
}

@media (max-width: 640px) {
  .topbar {
    flex-wrap: wrap;
  }
  .brand-title {
    font-size: 1rem;
  }
  .brand-sub {
    font-size: 0.7rem;
  }
  .card {
    padding: 0.8rem 0.85rem 0.9rem;
  }
  .chart-container {
    min-height: 220px;
  }
}

/* Floating navigation (Prev / Next) buttons */
.float-nav-btn {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: #4a4a4a;
  cursor: pointer;
  border-radius: 8px;
  transition: transform 0.12s ease, color 0.12s ease, box-shadow 0.12s ease;
}

.float-nav-btn svg {
  display: block;
}

.float-nav-btn:hover {
  transform: translateY(-2px);
  color: #2f2f2f;
}

.float-nav-btn:focus {
  outline: none;
  box-shadow: 0 6px 14px rgba(0,0,0,0.12);
}

/* Flip the previous button chevron so it points left */
#prevFloat svg {
  transform: rotate(180deg);
  transform-origin: center;
}

/* Make SVG charts responsive: scale to container width while preserving aspect */
.chart-container svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Center specific chart canvases (chart 2) without stretching them full width */
.centered-chart {
  display: flex;
  justify-content: center;
  align-items: center;
}

.centered-chart svg {
  width: auto;
  max-width: 100%;
  margin: 0 auto;
}

/* Ensure centered charts override fullscreen container stretch */
.dashboard.fullscreen .centered-chart {
  justify-content: center;
  align-items: center;
}

/* Fullscreen chart page rules */
.dashboard.fullscreen {
  padding: 0;
  gap: 0;
  width: 100%;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

.dashboard.fullscreen .card {
  height: 100%;
  width: 100%;
  border-radius: 0.25rem;
  box-shadow: none;
  padding: 0.6rem;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

.dashboard.fullscreen .chart-container {
  flex: 1 1 auto;
  min-height: 0;
  height: 100%;
  width: 100%;
  display: flex;
  align-items: stretch;
  position: relative;
}

.dashboard.fullscreen .chart-container svg {
  width: 100%;
  height: 100%;
}

.dashboard.fullscreen .chart-container > * {
  flex: 1 1 auto;
  min-height: 0;
}

.dashboard.fullscreen .card-title,
.dashboard.fullscreen .brand-block {
  display: none;
}

/* Generic responsive SVG wrapper (map + pareto pages) */
.responsive-svg-container {
  position: relative;
  flex: 1 1 auto;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  height: auto;
  min-height: 420px;
  display: flex;
  padding: 0 12px;
  overflow: visible;
}

.responsive-svg-container svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Visualisation menu grid */
.viz-grid {
  display: grid;
  gap: 1rem;
  align-items: stretch;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

/* Force three columns when there's enough width */
@media (min-width: 960px) {
  .viz-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.viz-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  background: var(--surface);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(16,24,40,0.04);
  overflow: hidden;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}
.viz-card:hover { transform: translateY(-6px); box-shadow: 0 18px 36px rgba(16,24,40,0.08); }
.viz-thumb { background: linear-gradient(180deg, rgba(0,23,107,0.06), rgba(0,23,107,0.03)); height: 120px; }
.viz-body { padding: 0.9rem 1rem 1.2rem; }
.viz-title { margin: 0 0 0.4rem 0; font-size: 0.95rem; color: var(--navy); }
.viz-desc { margin: 0; font-size: 0.85rem; color: var(--muted); }

/* About page */
.about-shell {
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
}
.about-section {
  gap: 0.6rem;
}
.about-heading {
  margin: 0 0 0.5rem 0;
  color: var(--navy);
}
.about-panel {
  background: var(--navy-soft);
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--navy-grey);
  margin-bottom: 0.7rem;
}
.about-list {
  margin: 0;
  padding-left: 1.1rem;
  line-height: 1.6;
  color: var(--text);
}
.about-actions {
  justify-content: flex-start;
  margin-top: 0.2rem;
}
.about-grid {
  display: grid;
  gap: 0.9rem;
  align-items: stretch;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.about-card {
  border: 1px solid var(--navy-grey);
  background: var(--white);
  border-radius: 12px;
  padding: 0.9rem 1rem 1rem;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.04);
}
.about-name {
  margin: 0 0 0.25rem 0;
  color: var(--navy);
  font-size: 1rem;
  font-weight: 700;
}
.about-id {
  margin: 0 0 0.55rem 0;
  color: var(--muted);
  font-size: 0.85rem;
}
.about-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.6rem;
}
.about-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--navy-soft);
  color: var(--navy);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.about-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text);
  text-align: justify;
  text-justify: inter-word;
  -webkit-hyphens: auto;
  -ms-hyphens: auto;
  hyphens: auto;
}
.about-footnote {
  margin-top: 0.8rem;
}

/* Chart 4 layout tweaks */
.chart4-page.dashboard.fullscreen {
  overflow-y: auto;
}
.chart4-shell {
  display: flex;
  flex-direction: column;
  width: 100%;
}
.chart4-select {
  margin-top: 10px;
  text-align: center;
}
.chart4-select-input {
  font-size: 14px;
  padding: 6px 10px;
  width: 200px;
  height: 38px;
}
.chart4-grid {
  display: flex;
  flex-direction: row;
  gap: 24px;
  width: 100%;
  max-width: 860px;
  margin: 10px auto 0;
  align-items: stretch;
  justify-content: center;
  padding: 0 12px;
}
.chart4-panel {
  flex: 1;
  min-height: 320px;
}

@media (max-width: 780px) {
  .chart4-page.dashboard.fullscreen {
    padding: 0.7rem 0.9rem 1rem;
    gap: 0.7rem;
  }
  .chart4-page.dashboard.fullscreen .card {
    height: auto;
    min-height: 0;
    overflow: visible;
    padding: 0.85rem 0.9rem 1rem;
  }
  .chart4-page.dashboard.fullscreen .chart-container {
    height: auto;
  }
  .chart4-grid {
    flex-direction: column;
    max-width: 100%;
    gap: 12px;
  }
  .chart4-panel {
    min-height: 260px;
  }
  .chart4-select-input {
    width: clamp(200px, 90vw, 320px);
  }
}

/* Collapsible info blocks (chart pages) */
.info-panel {
  background: #f8faff;
  border-left: 4px solid var(--info-accent, var(--navy));
  padding: 14px 16px;
  margin: 8px 0 14px 0;
  font-size: 12px;
  line-height: 1.35;
  border-radius: 10px;
}
.info-panel summary {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  list-style: none;
  color: var(--navy);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.info-panel summary::-webkit-details-marker {
  display: none;
}
.info-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.05rem 0.6rem;
  border-radius: 999px;
  background: var(--navy-soft);
  color: var(--navy);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.info-toggle-hint {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--muted);
}
.info-body {
  margin-top: 0.6rem;
  color: #333;
}
.info-body p {
  margin: 0 0 0.6rem 0;
}
.info-body p:last-child {
  margin-bottom: 0;
}
.info-list {
  margin: 0.2rem 0 0 1.1rem;
  padding: 0;
  line-height: 1.5;
}

@media (max-width: 780px) {
  .info-panel {
    padding: 12px 14px;
    font-size: 12px;
  }
  .info-toggle-hint {
    display: block;
  }
}