/* Cardano Delegation Observatory — neutral telemetry aesthetic */

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #fafaf7;
  --card: #ffffff;
  --text: #1a1a1a;
  --muted: #666;
  --faint: #999;
  --accent: #2c5670;
  --accent-soft: rgba(44, 86, 112, 0.08);
  --accent-strong: #1f4258;
  --border: rgba(0, 0, 0, 0.1);
  --border-strong: rgba(0, 0, 0, 0.18);
  --row-hover: rgba(44, 86, 112, 0.04);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 720px) {
  .container { padding: 0 14px; }
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 250, 247, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 0.5px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px;
  gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 14px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 26px; height: 26px; border-radius: 5px;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 10px; font-weight: 700; letter-spacing: 0.05em;
}
.site-nav { display: flex; align-items: center; gap: 22px; font-size: 13px; }
.site-nav a { color: var(--muted); }
.site-nav a:hover { color: var(--text); text-decoration: none; }

.lang-toggle { display: flex; gap: 2px; }
.lang-toggle button {
  background: transparent; border: 0.5px solid var(--border-strong);
  border-radius: 5px; padding: 3px 9px; font-size: 11px;
  cursor: pointer; color: var(--muted); font-family: inherit;
}
.lang-toggle button.active { background: var(--accent); color: white; border-color: var(--accent); }
.lang-toggle button:hover { color: var(--text); }
.lang-toggle button.active:hover { color: white; }

@media (max-width: 720px) {
  .header-inner { padding: 10px 14px; }
  .site-nav { gap: 12px; }
  .brand-text { display: none; }
}

/* Meta strip */
.meta-strip {
  background: var(--card);
  border-bottom: 0.5px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}
.meta-strip-inner {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 6px 22px;
  padding: 10px 24px;
  font-family: var(--mono);
}
.meta-item { display: inline-flex; align-items: baseline; gap: 6px; }
.meta-label { color: var(--faint); }
.meta-item strong { color: var(--text); font-weight: 600; }
.meta-item-right { margin-left: auto; }

@media (max-width: 720px) {
  .meta-strip-inner { padding: 10px 14px; gap: 4px 14px; font-size: 11px; }
  .meta-item-right { margin-left: 0; }
}

/* Main heading */
main { padding: 36px 0 64px; }
h1 {
  font-size: 24px; font-weight: 600; letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.lede { color: var(--muted); max-width: 720px; margin-bottom: 28px; font-size: 14px; }
.footnote { color: var(--faint); font-size: 12px; margin-top: 16px; max-width: 720px; }

@media (max-width: 720px) {
  main { padding: 24px 0 48px; }
  h1 { font-size: 20px; }
  .lede { font-size: 13px; }
}

/* Table */
.table-scroll { overflow-x: auto; border: 0.5px solid var(--border); border-radius: 6px; background: var(--card); }
table.observatory {
  width: 100%; border-collapse: collapse;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
table.observatory th, table.observatory td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 0.5px solid var(--border);
  white-space: nowrap;
}
table.observatory tr:last-child td { border-bottom: none; }

table.observatory thead th {
  background: rgba(0, 0, 0, 0.015);
  color: var(--muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  user-select: none;
  position: relative;
}
table.observatory thead th:hover { color: var(--text); }
table.observatory thead th.sorted::after {
  content: attr(data-arrow);
  margin-left: 6px;
  color: var(--accent);
  font-weight: 700;
}
table.observatory .col-rank { width: 40px; color: var(--faint); }
table.observatory .col-name { min-width: 240px; }
table.observatory .col-num { text-align: right; }

table.observatory tbody tr { cursor: pointer; }
table.observatory tbody tr:hover { background: var(--row-hover); }
table.observatory tbody tr.expanded { background: var(--accent-soft); }

td.name-cell {
  display: flex; flex-direction: column; gap: 2px;
}
.drep-name { font-weight: 500; }
.drep-id-short { font-family: var(--mono); font-size: 11px; color: var(--faint); }

.delta-cell { color: var(--muted); }
.delta-empty { color: var(--faint); }

.loading { padding: 32px; text-align: center; color: var(--muted); }

/* Expanded row */
tr.expand-row td { padding: 0; background: var(--card); cursor: default; }
tr.expand-row:hover { background: var(--card); }
.expand-inner {
  padding: 20px 24px;
  border-top: 0.5px solid var(--border);
  border-bottom: 0.5px solid var(--accent-soft);
  background: var(--card);
}
.expand-inner h3 {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 4px;
}
.expand-inner .full-id {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  margin-bottom: 14px;
  word-break: break-all;
}
.expand-section { margin-top: 18px; }
.expand-section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.expand-section a { word-break: break-all; }

/* SVG chart */
.chart-wrap {
  width: 100%;
  background: var(--bg);
  border: 0.5px solid var(--border);
  border-radius: 4px;
  padding: 16px;
}
.chart-wrap svg { display: block; width: 100%; height: auto; }
.chart-line { fill: none; stroke: var(--accent); stroke-width: 1.5; }
.chart-dot { fill: var(--accent); }
.chart-axis { stroke: var(--border); stroke-width: 0.5; }
.chart-label { font-size: 10px; fill: var(--faint); font-family: var(--mono); }
.chart-empty { font-size: 12px; color: var(--faint); padding: 20px; text-align: center; }

/* Vote history table */
.vote-table { width: 100%; border-collapse: collapse; font-size: 12px; margin-top: 4px; }
.vote-table th, .vote-table td {
  padding: 6px 10px;
  text-align: left;
  border-bottom: 0.5px solid var(--border);
  vertical-align: top;
}
.vote-table th { font-weight: 600; color: var(--muted); font-size: 11px; }
.vote-table td.vote-cell { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; }
.vote-action-title { color: var(--text); max-width: 480px; white-space: normal; }
.vote-action-type { color: var(--faint); font-size: 11px; }
.vote-show-more { margin-top: 8px; font-size: 12px; color: var(--accent); cursor: pointer; }
.vote-show-more:hover { text-decoration: underline; }

@media (max-width: 720px) {
  table.observatory th, table.observatory td { padding: 8px 10px; }
  .expand-inner { padding: 14px; }
  .vote-action-title { max-width: 220px; }
}

/* Footer */
.site-footer {
  border-top: 0.5px solid var(--border);
  padding: 24px 0 36px;
  font-size: 12px;
  color: var(--faint);
}
.footer-inner {
  display: flex; flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 18px;
}
.footer-inner a { color: var(--muted); margin-right: 12px; }
.footer-note { width: 100%; color: var(--faint); margin-top: 4px; }

@media (max-width: 720px) {
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* Download row */
.download-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin-top: 8px; }
.download-row a {
  padding: 2px 10px;
  border: 0.5px solid var(--border-strong);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}
.download-row a:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }
.footnote-sep { color: var(--faint); }

/* Actions filters */
.actions-filters {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--muted);
}
.filter-label { display: inline-flex; align-items: center; gap: 6px; }
.filter-label select {
  font: inherit;
  font-size: 13px;
  padding: 4px 8px;
  border: 0.5px solid var(--border-strong);
  border-radius: 4px;
  background: var(--card);
  color: var(--text);
}
.filter-count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
}

@media (max-width: 720px) {
  .actions-filters { gap: 10px; }
  .filter-count { margin-left: 0; width: 100%; }
}

/* DRep standalone page */
.drep-page { padding: 24px 24px 80px; }
.back-link { font-size: 13px; margin-bottom: 16px; }
.back-link a { color: var(--muted); }
.drep-page h1 { font-size: 26px; margin-bottom: 4px; }
.drep-id-full {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
  word-break: break-all;
  margin-bottom: 24px;
}
.drep-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 6px;
  padding: 14px 16px;
}
.stat-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.stat-value {
  font-size: 22px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.stat-sub { font-size: 11px; color: var(--faint); margin-top: 2px; }
.drep-section { margin-top: 28px; }

@media (max-width: 720px) {
  .drep-stats { grid-template-columns: repeat(2, 1fr); }
  .stat-value { font-size: 18px; }
  .drep-page { padding: 16px 14px 60px; }
}

/* Methodology page */
.methodology { max-width: 760px; margin: 0 auto; padding: 36px 24px 80px; }
.methodology h1 { font-size: 30px; margin-bottom: 8px; }
.methodology .lede { font-size: 15px; margin-bottom: 32px; }
.methodology h2 {
  font-size: 18px;
  margin-top: 36px;
  margin-bottom: 10px;
  padding-top: 24px;
  border-top: 0.5px solid var(--border);
  letter-spacing: -0.005em;
}
.methodology h2:first-of-type { border-top: none; padding-top: 0; }
.methodology p { margin-bottom: 12px; }
.methodology ul { margin: 6px 0 14px 22px; }
.methodology li { margin-bottom: 4px; }
.methodology code { font-family: var(--mono); font-size: 0.9em; background: var(--accent-soft); padding: 1px 5px; border-radius: 3px; }
.methodology strong { font-weight: 600; }
.methodology table.changelog { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 10px; }
.methodology table.changelog th, .methodology table.changelog td {
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  border-bottom: 0.5px solid var(--border);
}
.methodology table.changelog th { font-weight: 600; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; }