/* style.css — Carbon Debt Ledger v2 Design Tokens & Components */

/* ===== FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400&display=swap');

/* ===== TYPE SCALE ===== */
:root {
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1280px;
  --content-full: 100%;
}

/* ===== CUSTOM DARK PALETTE (default) ===== */
:root, [data-theme="dark"] {
  --color-bg:             #0d1117;
  --color-surface:        #161b22;
  --color-surface-2:      #1c2230;
  --color-surface-offset: #13181f;
  --color-surface-offset-2: #1a2029;
  --color-surface-dynamic: #21283a;
  --color-divider:        #293040;
  --color-border:         #30394a;

  /* Text */
  --color-text:           #e2e4e9;
  --color-text-muted:     #8b929e;
  --color-text-faint:     #525b6b;
  --color-text-inverse:   #0d1117;

  /* Primary accent — Amber/Gold for "debt" */
  --color-primary:        #c9a227;
  --color-primary-hover:  #b8921f;
  --color-primary-active: #a07d1a;
  --color-primary-highlight: #2a2518;

  /* Secondary — Slate blue for data */
  --color-secondary:      #4a6fa5;
  --color-secondary-hover: #3d5e8f;
  --color-secondary-active: #324e78;

  /* Error/Alert — Desaturated red for debt indicators */
  --color-debt:           #b54a4a;
  --color-debt-hover:     #9e3e3e;
  --color-debt-active:    #883535;
  --color-debt-highlight: #2a1a1a;

  /* Success — CDR retirements */
  --color-success:        #3d8b5e;
  --color-success-hover:  #337a50;
  --color-success-active: #296842;

  /* Warning */
  --color-warning:        #c9a227;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.5);
}

/* ===== LIGHT MODE ===== */
[data-theme="light"] {
  --color-bg:             #f0f1f4;
  --color-surface:        #ffffff;
  --color-surface-2:      #f7f8fa;
  --color-surface-offset: #e8eaee;
  --color-surface-offset-2: #dfe1e6;
  --color-surface-dynamic: #d5d8de;
  --color-divider:        #ccd0d8;
  --color-border:         #bcc1cc;

  --color-text:           #1a1d24;
  --color-text-muted:     #5a6070;
  --color-text-faint:     #8a90a0;
  --color-text-inverse:   #f0f1f4;

  --color-primary:        #8a6e12;
  --color-primary-hover:  #6d5710;
  --color-primary-active: #52420c;
  --color-primary-highlight: #f0e8c8;

  --color-secondary:      #3b5a8a;
  --color-secondary-hover: #2f4a75;
  --color-secondary-active: #253b5f;

  --color-debt:           #a03838;
  --color-debt-hover:     #8a2e2e;
  --color-debt-active:    #752525;
  --color-debt-highlight: #f0d8d8;

  --color-success:        #2d7048;
  --color-success-hover:  #245e3c;
  --color-success-active: #1c4c30;

  --color-warning:        #8a6e12;

  --shadow-sm: 0 1px 2px oklch(0.2 0.01 250 / 0.08);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 250 / 0.1);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 250 / 0.14);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg:             #f0f1f4;
    --color-surface:        #ffffff;
    --color-surface-2:      #f7f8fa;
    --color-surface-offset: #e8eaee;
    --color-surface-offset-2: #dfe1e6;
    --color-surface-dynamic: #d5d8de;
    --color-divider:        #ccd0d8;
    --color-border:         #bcc1cc;

    --color-text:           #1a1d24;
    --color-text-muted:     #5a6070;
    --color-text-faint:     #8a90a0;
    --color-text-inverse:   #f0f1f4;

    --color-primary:        #8a6e12;
    --color-primary-hover:  #6d5710;
    --color-primary-active: #52420c;
    --color-primary-highlight: #f0e8c8;

    --color-secondary:      #3b5a8a;
    --color-secondary-hover: #2f4a75;
    --color-secondary-active: #253b5f;

    --color-debt:           #a03838;
    --color-debt-hover:     #8a2e2e;
    --color-debt-active:    #752525;
    --color-debt-highlight: #f0d8d8;

    --color-success:        #2d7048;
    --color-success-hover:  #245e3c;
    --color-success-active: #1c4c30;

    --color-warning:        #8a6e12;

    --shadow-sm: 0 1px 2px oklch(0.2 0.01 250 / 0.08);
    --shadow-md: 0 4px 12px oklch(0.2 0.01 250 / 0.1);
    --shadow-lg: 0 12px 32px oklch(0.2 0.01 250 / 0.14);
  }
}

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container--narrow {
  max-width: var(--content-default);
}

/* ===== HEADER / NAV ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklch, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  padding: var(--space-3) 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
}

.site-header__logo-icon {
  width: 42px;
  height: 28px;
  flex-shrink: 0;
}

.site-header__logo-text {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-header__nav a {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: color var(--transition-interactive), background var(--transition-interactive);
}

.site-header__nav a:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  flex-shrink: 0;
  background: transparent;
  border: none;
  cursor: pointer;
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

/* ===== HERO ===== */
.hero {
  padding: clamp(var(--space-16), 10vw, var(--space-32)) 0 clamp(var(--space-12), 8vw, var(--space-24));
  text-align: center;
  border-bottom: 1px solid var(--color-divider);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

.hero__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.hero__explainer {
  max-width: 56ch;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  text-align: center;
}

.hero__explainer-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.hero__explainer-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.hero__stat {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-10);
  margin-bottom: var(--space-8);
}

.hero__stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  margin-bottom: var(--space-1);
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums lining-nums;
  line-height: 1.1;
}

.hero__stat-unit {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.hero__description {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-inline: auto;
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.hero__scroll-indicator {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ===== SECTION HEADERS ===== */
.section {
  padding: clamp(var(--space-12), 6vw, var(--space-20)) 0;
  border-bottom: 1px solid var(--color-divider);
}

.section:last-of-type {
  border-bottom: none;
}

.section__header {
  margin-bottom: var(--space-8);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}

.section__subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ===== LEDGER TABLE — NARROW v2 ===== */
.ledger-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.ledger-table {
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums lining-nums;
  white-space: nowrap;
  width: 100%;
  border-collapse: collapse;
}

.ledger-table thead {
  position: sticky;
  top: 0;
  z-index: 2;
}

.ledger-table th {
  background: var(--color-surface-offset);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--space-2) var(--space-3);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-interactive);
}

.ledger-table th:hover {
  background: var(--color-surface-dynamic);
}

.ledger-table th .sort-indicator {
  display: inline-block;
  margin-left: var(--space-1);
  opacity: 0.3;
  transition: opacity var(--transition-interactive);
}

.ledger-table th.sorted .sort-indicator {
  opacity: 1;
  color: var(--color-primary);
}

.ledger-table td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text);
  vertical-align: middle;
  font-size: var(--text-xs);
}

.ledger-table tbody tr {
  transition: background var(--transition-interactive);
}

.ledger-table tbody tr:hover {
  background: var(--color-surface-offset);
}

.ledger-table tbody tr:last-child td {
  border-bottom: none;
}

/* Rank cell */
.rank-cell {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  width: 28px;
  text-align: right;
  padding-right: var(--space-2);
}

/* Company name link */
.company-link {
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.company-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Country cell */
.country-cell {
  color: var(--color-text-muted);
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Debt cell */
.debt-cell {
  font-weight: 700;
  color: var(--color-primary);
}

/* Annual / scope3 */
.annual-value {
  color: var(--color-text);
}

.scope3-value {
  color: var(--color-text-muted);
}

/* CDR values */
.cdr-positive {
  color: var(--color-success);
  font-weight: 600;
}

.cdr-committed {
  color: var(--color-primary);
  font-weight: 600;
}

/* Trend sparkline cell */
.trend-cell {
  width: 74px;
  padding: var(--space-1) var(--space-2);
}

/* ===== SECTOR BADGE ===== */
.sector-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  background: color-mix(in oklch, var(--badge-color) 18%, transparent);
  color: var(--badge-color);
  border: 1px solid color-mix(in oklch, var(--badge-color) 35%, transparent);
  white-space: nowrap;
}

/* ===== TREEMAP CHART ===== */
.treemap-header {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  flex-wrap: wrap;
}

.treemap-total {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
}

.treemap-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

#treemap-container {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-offset);
  cursor: crosshair;
}

#treemap-container svg {
  display: block;
}

#treemap-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.treemap-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.treemap-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

/* Treemap tooltip */
.treemap-tooltip {
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  min-width: 260px;
  max-width: 320px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transition: opacity 0.15s ease;
  display: none;
}

.treemap-tooltip__name {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.treemap-tooltip__sector {
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.treemap-tooltip__matrix {
  margin-bottom: var(--space-2);
}

.treemap-tooltip__matrix-title {
  font-size: 10px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.treemap-tooltip__matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums lining-nums;
}

.treemap-tooltip__matrix-table th {
  font-size: 10px;
  color: var(--color-text-muted);
  font-weight: 600;
  text-align: right;
  padding: 2px var(--space-2) var(--space-1);
  border-bottom: 1px solid var(--color-divider);
}

.treemap-tooltip__matrix-table th:first-child {
  text-align: left;
}

.treemap-tooltip__matrix-table td {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
}

.treemap-tooltip__matrix-table tbody tr:last-child td {
  border-bottom: none;
}

.tt-matrix-label {
  font-size: 10px;
  color: var(--color-text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.tt-matrix-value {
  text-align: right;
  font-weight: 600;
  color: var(--color-text);
}

.tt-matrix-value--primary {
  color: var(--color-primary);
  font-weight: 700;
}

.treemap-tooltip__cdr {
  font-size: var(--text-xs);
  color: var(--color-success);
  margin-bottom: 3px;
}

.treemap-tooltip__hint {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-2);
  font-style: italic;
}

/* ===== CHARTS SECTION ===== */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.chart-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

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

.chart-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.chart-card__subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.chart-container {
  position: relative;
  width: 100%;
}

.chart-container--treemap {
  /* Treemap is responsive SVG */
}

.chart-container--line {
  height: 340px;
}

/* ===== METHODOLOGY / ABOUT ===== */
.methodology-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.methodology-block {
  margin-bottom: var(--space-6);
}

.methodology-block h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.methodology-block p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}

.methodology-block a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: opacity 0.15s ease;
}

.methodology-block a:hover {
  opacity: 0.8;
}

.methodology-block ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-3);
}

.methodology-block li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-1) 0;
  padding-left: var(--space-4);
  position: relative;
}

.methodology-block li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.6;
}

.formula-block {
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-4) var(--space-5);
  margin: var(--space-4) 0;
  font-family: var(--font-body);
}

.formula-block__title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

.formula-block__formula {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.8;
}

.formula-block__formula strong {
  color: var(--color-primary);
}

.formula-equation {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: var(--space-2);
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
}

.formula-lhs {
  font-size: var(--text-sm);
  flex-shrink: 0;
}

.formula-op {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.formula-rhs {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px var(--space-2);
  white-space: nowrap;
  font-size: var(--text-xs);
}

.formula-baseline {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-2);
  margin-top: var(--space-1);
}

.blockquote {
  border-left: 3px solid var(--color-primary);
  padding: var(--space-4) var(--space-6);
  background: var(--color-surface);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-6) 0;
}

.blockquote p {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text);
  line-height: 1.6;
}

.sources-list {
  list-style: none;
  padding: 0;
}

.sources-list li {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-divider);
}

.sources-list li:last-child {
  border-bottom: none;
}

.sources-list a {
  font-size: var(--text-sm);
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.sources-list a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding: var(--space-8) 0;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.site-footer__tagline {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 500;
}

.site-footer__sources {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.site-footer__links {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.site-footer__links a {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.site-footer__links a:hover {
  color: var(--color-primary);
}

.site-footer__disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: 60ch;
  margin-top: var(--space-2);
  line-height: 1.6;
}

/* ===== SCROLL ANIMATIONS ===== */
.animate-in {
  opacity: 0;
  clip-path: inset(8% 0 0 0);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              clip-path 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-in.is-visible {
  opacity: 1;
  clip-path: inset(0 0 0 0);
}

/* ===== UTILITY ===== */
.tabular-nums {
  font-variant-numeric: tabular-nums lining-nums;
}

.text-primary { color: var(--color-primary); }
.text-debt { color: var(--color-debt); }
.text-muted { color: var(--color-text-muted); }
.text-faint { color: var(--color-text-faint); }
.text-success { color: var(--color-success); }

/* ===== PROFILE PAGE ===== */
#profile-view {
  min-height: 100vh;
}

.profile-back {
  padding: var(--space-6) 0 var(--space-4);
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: color var(--transition-interactive), border-color var(--transition-interactive), background var(--transition-interactive);
}

.btn-back:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
  background: var(--color-primary-highlight);
}

/* Profile header */
.profile-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-8);
  padding: var(--space-6) 0 var(--space-8);
  border-bottom: 1px solid var(--color-divider);
  margin-bottom: var(--space-8);
}

.profile-header__left {
  flex: 1;
}

.profile-header__sector-badge {
  margin-bottom: var(--space-3);
}

.profile-header__name {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

.profile-header__meta {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.profile-ticker {
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--color-text-faint);
}

.profile-header__right {
  flex-shrink: 0;
}

.profile-stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-8);
  text-align: center;
}

.profile-stat__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
  margin-bottom: var(--space-1);
}

.profile-stat__value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums lining-nums;
  line-height: 1.2;
}

.profile-stat__unit {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* Profile two-column grid */
.profile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  padding-bottom: var(--space-16);
}

.profile-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* Profile cards */
.profile-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.profile-card--faint {
  background: var(--color-surface-offset);
}

.profile-card__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.profile-card__subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
  line-height: 1.5;
}

.profile-card__explainer {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: var(--space-4);
  line-height: 1.5;
}

/* Waterfall chart container */
.profile-waterfall-wrap {
  position: relative;
  height: 280px;
  margin-bottom: var(--space-4);
}

.waterfall-formula {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: var(--text-xs);
}

.wf-base {
  color: var(--color-primary);
  font-weight: 600;
}

.wf-add {
  color: var(--color-secondary);
}

.wf-cdr {
  color: var(--color-success);
}

.wf-total {
  color: var(--color-debt);
  font-weight: 700;
}

/* Annual emissions table */
.profile-table-wrap {
  overflow-x: auto;
}

.profile-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums lining-nums;
}

.profile-table th {
  background: var(--color-surface-offset);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-2) var(--space-3);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.profile-table td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text);
}

.profile-table tbody tr:last-child td {
  border-bottom: none;
}

.profile-table .debt-cell {
  color: var(--color-primary);
  font-weight: 700;
}

.profile-table .scope3-value {
  color: var(--color-text-muted);
}

/* Profile bar chart */
.profile-chart-wrap {
  position: relative;
  height: 200px;
}

/* CDR status */
.cdr-status-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.cdr-status-item {
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

.cdr-status-item--active {
  border-color: var(--color-success);
  background: color-mix(in oklch, var(--color-success) 8%, var(--color-surface));
}

.cdr-status-item--committed {
  border-color: var(--color-primary);
  background: var(--color-primary-highlight);
}

.cdr-status-item__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}

.cdr-status-item__value {
  font-weight: 700;
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}

.cdr-status-item__pct {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-1);
}

.cdr-notes {
  background: var(--color-surface-offset);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  margin-bottom: var(--space-3);
}

.cdr-notes p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}

.cdr-ratio-bar {
  margin-bottom: var(--space-3);
}

.cdr-ratio-bar__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.cdr-ratio-bar__track {
  width: 100%;
  height: 6px;
  background: var(--color-surface-dynamic);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

.cdr-ratio-bar__fill {
  height: 100%;
  background: var(--color-success);
  border-radius: var(--radius-full);
  min-width: 2px;
}

.cdr-ratio-bar__note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.5;
}

.cdr-source {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.cdr-source a {
  color: var(--color-secondary);
  text-decoration: none;
}

.cdr-source a:hover {
  color: var(--color-primary);
}

/* Data quality notes */
.profile-data-quality {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-3);
}

.profile-historical-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.6;
  font-style: italic;
  margin: 0;
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 900px) {
  .profile-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }

  .methodology-content {
    grid-template-columns: 1fr;
  }

  .profile-header {
    flex-direction: column;
  }

  .profile-header__right {
    align-self: flex-start;
  }

  .site-header__nav a {
    display: none;
  }
}

@media (max-width: 640px) {
  .hero__stat {
    padding: var(--space-4) var(--space-6);
  }

  .hero__stat-value {
    font-size: var(--text-2xl);
  }

  /* Table → card layout on mobile */
  .ledger-wrapper {
    border: none;
    border-radius: 0;
    background: transparent;
    overflow: visible;
  }

  .ledger-table,
  .ledger-table thead,
  .ledger-table tbody,
  .ledger-table tr,
  .ledger-table th,
  .ledger-table td {
    display: block;
  }

  .ledger-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
  }

  .ledger-table tbody tr {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-3);
    padding: var(--space-4);
  }

  .ledger-table tbody tr:hover {
    background: var(--color-surface);
    border-color: var(--color-primary);
  }

  .ledger-table td {
    padding: var(--space-1) 0;
    border-bottom: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    white-space: normal;
  }

  .ledger-table td::before {
    content: attr(data-label);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    flex-shrink: 0;
    margin-right: var(--space-3);
  }

  .ledger-table td:first-child {
    font-size: var(--text-base);
    margin-bottom: var(--space-2);
  }

  .cdr-status-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== MOBILE NAV ===== */
@media (max-width: 480px) {
  .site-header__logo-text {
    font-size: var(--text-xs);
  }

  .site-header__nav {
    gap: 0;
  }

  .profile-header__name {
    font-size: var(--text-xl);
  }
}

/* ===== V3: HERO STAT EXPLAINER ===== */
.hero__stat-explainer {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-1);
  letter-spacing: 0.01em;
}

/* ===== V3: HERO SUB LINE ===== */
.hero__stat-sub {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-2);
  font-style: italic;
}

/* ===== V3: INFO TOOLTIP ICON ===== */
.info-tooltip {
  display: inline-block;
  cursor: help;
  font-size: 0.75rem;
  color: var(--color-text-faint);
  margin-left: var(--space-1);
  vertical-align: middle;
  position: relative;
  opacity: 0.7;
  transition: opacity var(--transition-interactive), color var(--transition-interactive);
}

.info-tooltip:hover {
  opacity: 1;
  color: var(--color-primary);
}

/* Tooltip rendered by JS — appended to body to avoid overflow clipping */
.info-tooltip-popup {
  position: fixed;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  font-size: 0.7rem;
  font-weight: 400;
  line-height: 1.45;
  white-space: normal;
  width: 260px;
  text-align: left;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, visibility 0.15s ease;
  z-index: 9999;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.info-tooltip-popup.visible {
  opacity: 1;
  visibility: visible;
}

/* ===== V3: PROFILE DEBT MATRIX ===== */
.profile-debt-matrix {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  min-width: 280px;
}

.matrix-title {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums lining-nums;
}

.matrix-table th {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: var(--space-1) var(--space-3);
  text-align: right;
  border-bottom: 1px solid var(--color-divider);
  background: transparent;
}

.matrix-table th:first-child {
  text-align: left;
}

.matrix-table td {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-divider);
}

.matrix-table tbody tr:last-child td {
  border-bottom: none;
}

.matrix-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

.matrix-value {
  text-align: right;
  font-weight: 600;
  color: var(--color-text);
}

.matrix-value--primary {
  color: var(--color-primary);
  font-weight: 700;
}

/* ===== V3: SCROLLABLE ANNUAL TABLE ===== */
.profile-table-wrap {
  overflow-x: auto;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.profile-table-wrap::-webkit-scrollbar {
  width: 6px;
}

.profile-table-wrap::-webkit-scrollbar-track {
  background: transparent;
}

.profile-table-wrap::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

.profile-table thead {
  position: sticky;
  top: 0;
  z-index: 2;
}

/* ===== V3: RESPONSIVE MATRIX ===== */
@media (max-width: 768px) {
  .profile-debt-matrix {
    min-width: auto;
    width: 100%;
  }
}

@media (max-width: 640px) {
  .matrix-table td,
  .matrix-table th {
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-xs);
  }

  .profile-debt-matrix {
    padding: var(--space-3);
  }
}

/* ===== AGGREGATE CHART HOVER MATRIX ===== */
/* Aggregate chart custom tooltip (follows cursor) */
.agg-custom-tooltip,
.profile-custom-tooltip {
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  min-width: 260px;
  max-width: 340px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  opacity: 0;
  transition: opacity 0.15s ease;
}

.agg-tt-year {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 2px;
}

.agg-tt-subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
  font-weight: 500;
}

.agg-tt-table {
  border-collapse: collapse;
  width: 100%;
  font-variant-numeric: tabular-nums lining-nums;
}

.agg-tt-table th {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 600;
  text-align: right;
  padding: 2px var(--space-2) var(--space-1);
  border-bottom: 1px solid var(--color-divider);
}

.agg-tt-table th:first-child {
  text-align: left;
}

.agg-tt-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  text-align: left;
  white-space: nowrap;
  padding: var(--space-1) var(--space-2);
}

.agg-tt-val {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  text-align: right;
  padding: var(--space-1) var(--space-2);
}

.agg-tt-primary {
  color: var(--color-primary);
  font-weight: 700;
}

/* Aggregate explainer below chart */
.agg-matrix-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.agg-matrix-count {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.agg-matrix-table {
  margin: 0 auto;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums lining-nums;
}

.agg-matrix-table th {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 600;
  text-align: right;
  padding: 2px var(--space-3) var(--space-1);
  border-bottom: 1px solid var(--color-divider);
}

.agg-matrix-table th:first-child {
  text-align: left;
}

.agg-matrix-table td {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
  text-align: right;
  font-weight: 600;
  color: var(--color-text);
}

.agg-matrix-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
  text-align: left;
  white-space: nowrap;
}

.agg-matrix-primary {
  font-weight: 700;
  color: var(--color-primary);
}

.agg-matrix-row {
  opacity: 0.5;
  transition: opacity 0.15s ease;
}

.agg-matrix-row.agg-matrix-hl {
  opacity: 1;
}

.agg-matrix-row.agg-matrix-hl td {
  color: var(--color-text);
}

.agg-matrix-row.agg-matrix-hl .agg-matrix-primary {
  color: var(--color-primary);
}