/* filcensus.reiers.io — Filecoin Network Intelligence
   Light theme · blue→white gradient · frosted glass panels · everything pill-rounded.
*/

:root {
  /* Light gradient palette */
  --bg-from:   #E6F2FF;   /* top-left light blue */
  --bg-to:     #FFFFFF;   /* bottom-right white */
  --surface:   rgba(255, 255, 255, 0.65);  /* glass panel */
  --surface2:  rgba(255, 255, 255, 0.85);  /* second glass layer (opaque-er) */
  --border:    rgba(13, 71, 161, 0.10);
  --border-2:  rgba(13, 71, 161, 0.20);

  --text:      #0A1F44;   /* deep navy on white */
  --text-2:    #2C3E6B;
  --dim:       #5B6B8C;
  --muted:     #8493AE;

  /* Categorical palette — same hues as the dark theme but tuned for light bg */
  --accent:    #1565C0;   /* Filecoin blue   - primary */
  --accent-2:  #5B6BFF;   /* secondary blue */
  --green:     #2E8B57;
  --warn:      #B8860B;
  --orange:    #D2691E;
  --red:       #D32F2F;
  --pink:      #C2185B;
  --purple:    #6A1B9A;

  --font-sans:    -apple-system, BlinkMacSystemFont, "Inter", "SF Pro Text", "Segoe UI", Roboto, system-ui, sans-serif;
  --font-mono:    ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --font-display: -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;

  --max-w:        1200px;
  --radius-pill:  999px;
  --radius-card:  18px;
  --radius-tile:  12px;

  --shadow-sm:    0 1px 2px rgba(13, 71, 161, 0.04), 0 2px 8px rgba(13, 71, 161, 0.06);
  --shadow-md:    0 2px 6px rgba(13, 71, 161, 0.06), 0 8px 24px rgba(13, 71, 161, 0.08);
  --shadow-lg:    0 4px 12px rgba(13, 71, 161, 0.08), 0 24px 48px rgba(13, 71, 161, 0.10);
}

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

html, body {
  margin: 0;
  padding: 0;
  /* Animated blue→white gradient. Subtle radial highlights over a base
     linear gradient from light blue to white. */
  background:
    radial-gradient(circle at 15% 0%, rgba(91, 107, 255, 0.15), transparent 50%),
    radial-gradient(circle at 85% 10%, rgba(21, 101, 192, 0.12), transparent 55%),
    linear-gradient(135deg, var(--bg-from) 0%, #F5FAFF 40%, var(--bg-to) 100%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "tnum" 1, "ss01" 1, "cv11" 1;
}

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

/* --- Glass panel utility --- */
.glass {
  background: var(--surface);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}

/* --- Header --- */
.site-header {
  position: sticky; top: 12px; z-index: 10;
  margin: 12px auto 0;
  max-width: var(--max-w);
  padding: 0 1.5rem;
}
.header-inner {
  display: flex; align-items: center; gap: 1.5rem;
  flex-wrap: wrap;
  padding: 0.65rem 1rem;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
}
.brand { display: flex; align-items: center; gap: 0.55rem; color: var(--text); padding-left: 0.4rem; }
.brand:hover { text-decoration: none; }
.brand-mark-img { display: block; width: 28px; height: 28px; border-radius: 7px; }
.brand-name { font-weight: 700; letter-spacing: -0.02em; font-size: 1.05rem; color: var(--text); }
.header-nav { display: flex; gap: 1rem; flex-wrap: wrap; }
.header-nav a { color: var(--dim); font-size: 0.85rem; font-weight: 500; padding: 0.25rem 0.6rem; border-radius: var(--radius-pill); transition: background 0.15s, color 0.15s; }
.header-nav a:hover { color: var(--accent); background: rgba(21, 101, 192, 0.08); text-decoration: none; }
.header-meta { margin-left: auto; display: flex; align-items: center; gap: 0.5rem; font-size: 0.78rem; color: var(--dim); padding-right: 0.5rem; }
.net-badge {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.net-mainnet { background: rgba(46, 139, 87, 0.12); color: var(--green); border: 1px solid rgba(46, 139, 87, 0.3); }
.net-calibration { background: rgba(184, 134, 11, 0.12); color: var(--warn); border: 1px solid rgba(184, 134, 11, 0.3); }

/* --- Main --- */
main { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }

/* --- Hero (compact now; the main drama is the Power Concentration section below) --- */
.hero {
  padding: 3rem 0 1.25rem;
  text-align: center;
}
.kicker {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 1.1rem;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin: 0 auto 1.25rem;
  max-width: 920px;
  color: var(--text);
}
.hl-pink {
  background: linear-gradient(135deg, #D32F2F 0%, #C2185B 50%, #6A1B9A 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 760px;
  margin: 0 auto;
  line-height: 1.65;
}
.hero-sub strong { color: var(--text); font-weight: 600; }

/* --- Headline strip — 8 pill cards across (glass) --- */
.headline-strip {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 0.6rem;
  margin: 1.5rem 0 0.5rem;
}
.hl {
  background: var(--surface);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid var(--border);
  border-radius: var(--radius-tile);
  padding: 1rem 0.5rem 0.85rem;
  text-align: center;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.hl:hover { transform: translateY(-2px); border-color: var(--border-2); box-shadow: var(--shadow-md); }
.hl-num {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
}
.hl-num.red    { color: var(--red); }
.hl-num.orange { color: var(--orange); }
.hl-num.blue   { color: var(--accent); }
.hl-num.green  { color: var(--green); }
.hl-num.purple { color: var(--purple); }
.hl-num.pink   { color: var(--pink); }
.hl-num.warn   { color: var(--warn); }
.hl-num.dim    { color: var(--muted); }
.hl-unit { font-size: 0.6em; font-weight: 600; opacity: 0.8; margin-left: 0.15em; }
.hl-lbl {
  font-size: 0.62rem;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.55rem;
  font-weight: 500;
}
@media (max-width: 1100px) { .headline-strip { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 580px)  { .headline-strip { grid-template-columns: repeat(2, 1fr); } }

/* --- Callouts (glass) --- */
.callout, .callout-purple {
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 1.5rem 1.75rem;
  margin: 2rem 0;
  line-height: 1.75;
  background: var(--surface);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow: var(--shadow-sm);
}
.callout { border-left: 4px solid var(--accent); }
.callout-purple { border-left: 4px solid var(--purple); }
.callout h3, .callout-purple h3 {
  color: var(--accent);
  margin: 0 0 0.6rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.005em;
}
.callout-purple h3 { color: var(--purple); }
.callout p, .callout-purple p {
  margin: 0 0 0.75rem;
  color: var(--text-2);
  font-size: 0.95rem;
}
.callout p:last-child, .callout-purple p:last-child { margin-bottom: 0; }
.callout strong, .callout-purple strong { color: var(--text); }
.callout code, .callout-purple code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: rgba(21, 101, 192, 0.07);
  padding: 0.05em 0.4em;
  border-radius: var(--radius-pill);
  color: var(--accent);
}

/* --- Sections wrapped as glass panels --- */
.section {
  background: var(--surface);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 2rem 2rem 1.75rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
}
.section-header { margin-bottom: 1.25rem; }
.section-header h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
}
.section-lead {
  margin: 0.4rem 0 0;
  color: var(--text-2);
  font-size: 0.95rem;
  max-width: 760px;
}
.section-lead strong { color: var(--text); }
.section-lead code { font-family: var(--font-mono); font-size: 0.85em; background: rgba(21, 101, 192, 0.07); padding: 0.05em 0.4em; border-radius: var(--radius-pill); color: var(--accent); }

.subhead { font-size: 0.78rem; font-weight: 600; color: var(--dim); text-transform: uppercase; letter-spacing: 0.1em; margin: 1.5rem 0 0.6rem; }
.empty { color: var(--dim); font-style: italic; }
.footer-note { color: var(--dim); font-size: 0.8rem; margin-top: 0.85rem; }

/* The headline (Power Concentration) section gets emphasis */
.section-headline {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.85), rgba(230, 242, 255, 0.7));
  border: 1px solid var(--border-2);
  box-shadow: var(--shadow-md);
}
.section-headline .section-header h2 {
  font-size: 2rem;
}

/* --- Concentration band (5 colored stat cells, all rounded) --- */
.concentration-band {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.6rem;
  margin: 0.75rem 0 1rem;
}
.cb-cell {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-tile);
  padding: 1rem 0.75rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.cb-num { font-family: var(--font-display); font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1; }
.cb-num.red    { color: var(--red); }
.cb-num.orange { color: var(--orange); }
.cb-num.purple { color: var(--purple); }
.cb-num.blue   { color: var(--accent); }
.cb-num.dim    { color: var(--muted); }
.cb-num.warn   { color: var(--warn); }
.cb-num.green  { color: var(--green); }
.cb-lbl { font-size: 0.7rem; color: var(--dim); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 0.5rem; font-weight: 500; }
@media (max-width: 700px) { .concentration-band { grid-template-columns: repeat(3, 1fr); } }

/* --- Stacked tier bar (rounded, pill ends) --- */
.tier-bar {
  display: flex;
  height: 64px;
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin: 0.85rem 0 1.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-2);
  position: relative;
}
.tier-seg {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-size: 0.85rem;
  color: #fff;
  min-width: 70px;
  white-space: nowrap;
  padding: 0 0.6rem;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.30);
  border-right: 1px solid rgba(255, 255, 255, 0.18);
  position: relative;
}
.tier-seg:last-child { border-right: none; }
.tier-seg .tier-rank {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 0.1rem;
}
.tier-seg .tier-pct {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
}
.tier-seg .tier-cum {
  font-size: 0.6rem;
  opacity: 0.75;
  margin-top: 0.15rem;
  font-feature-settings: "tnum";
}
/* Below the bar we render a small legend strip aligned to each segment */
.tier-bar-legend {
  display: flex;
  margin: -0.5rem 0 1.25rem;
  font-size: 0.72rem;
  color: var(--dim);
  padding: 0 0.25rem;
}
.tier-bar-legend .tl-cell {
  text-align: center;
  white-space: nowrap;
  letter-spacing: 0.04em;
  padding-top: 0.4rem;
}

/* --- Charts --- */
.chart {
  margin: 0.5rem 0 0;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 1.25rem 1.5rem 1rem;
}
svg.lorenz {
  display: block;
  width: 100%;
  height: 280px;
}
svg.lorenz .grid line {
  stroke: rgba(13, 71, 161, 0.08);
  stroke-width: 1;
}
svg.lorenz .threshold {
  stroke: rgba(211, 47, 47, 0.55);
  stroke-width: 1.5;
  stroke-dasharray: 5 4;
}
svg.lorenz .threshold-label {
  font-family: var(--font-sans);
  font-size: 12px;
  fill: var(--red);
  font-weight: 600;
  letter-spacing: 0.04em;
}
svg.lorenz .axis-label {
  font-family: var(--font-sans);
  font-size: 11px;
  fill: var(--dim);
  font-weight: 500;
  letter-spacing: 0.04em;
}
svg.lorenz .lorenz-line {
  fill: none;
  stroke: var(--purple);
  stroke-width: 3;
  filter: drop-shadow(0 2px 6px rgba(106, 27, 154, 0.25));
}
svg.lorenz .lorenz-fill { fill: url(#lorenz-fill); stroke: none; }

.chart-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.85rem;
  font-size: 0.82rem;
  color: var(--text-2);
  flex-wrap: wrap;
  gap: 0.5rem;
}
.chart-caption .chart-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 0.4rem; vertical-align: middle; }

/* --- Geography donut + table --- */
.geo-split { display: grid; grid-template-columns: 1fr 1.4fr; gap: 1.5rem; align-items: center; }
@media (max-width: 800px) { .geo-split { grid-template-columns: 1fr; } }
svg.donut {
  width: 100%;
  max-width: 220px;          /* Was way too big; constrained */
  height: 220px;
  display: block;
  margin: 0 auto;
}
svg.donut .donut-num { font-family: var(--font-display); font-size: 28px; font-weight: 800; fill: var(--text); letter-spacing: -0.03em; }
svg.donut .donut-lbl { font-size: 9px; fill: var(--dim); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; }

/* --- Country pills (pill-shaped, rounded, vibrant) --- */
.country-pill {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: color-mix(in srgb, var(--cc-color) 15%, white);
  color: var(--cc-color);
  border: 1px solid color-mix(in srgb, var(--cc-color) 35%, transparent);
}
.country-pill .country-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cc-color);
  box-shadow: 0 0 5px color-mix(in srgb, var(--cc-color) 60%, transparent);
}

/* --- Distribution rows (software) --- */
.dist-grid { display: flex; flex-direction: column; gap: 0.4rem; }
.dist-row {
  display: grid;
  grid-template-columns: 44px 150px 1fr 60px 60px;
  align-items: center;
  gap: 0.85rem;
  padding: 0.55rem 0.85rem;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  transition: border-color 0.12s, transform 0.12s;
}
.dist-row:hover { border-color: var(--border-2); transform: translateX(2px); }
.dist-logo-tile {
  width: 40px; height: 40px;
  background: #fff;
  border-radius: 50%;     /* circular logo tile — round, not square */
  display: flex; align-items: center; justify-content: center;
  padding: 5px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.dist-logo {
  display: block;
  max-width: 30px;
  max-height: 30px;
  width: auto; height: auto;
  object-fit: contain;
}
/* Our own monogram fallbacks carry their own contrast — drop the white tile */
.dist-row.sw-private    .dist-logo-tile,
.dist-row.sw-no-peer-id .dist-logo-tile,
.dist-row.sw-other      .dist-logo-tile,
.dist-row.sw-unknown    .dist-logo-tile,
.dist-row.sw-droplet    .dist-logo-tile,
.dist-row.sw-markets    .dist-logo-tile,
.dist-row.sw-lotus-miner .dist-logo-tile,
.dist-row.sw-venus-miner .dist-logo-tile {
  background: transparent;
  padding: 0;
  box-shadow: none;
}
.dist-name { font-weight: 600; letter-spacing: -0.01em; color: var(--text); }
.dist-bar {
  position: relative;
  height: 8px;
  background: rgba(13, 71, 161, 0.08);
  border-radius: var(--radius-pill);
  overflow: hidden;
}
.dist-bar > span {
  position: absolute; top: 0; left: 0; bottom: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: var(--radius-pill);
}
.dist-count, .dist-pct { text-align: right; }
.dist-count { font-weight: 700; color: var(--text); }
.dist-pct { color: var(--dim); font-size: 0.85rem; }

.sw-curio   .dist-bar > span { background: linear-gradient(90deg, #00b4d8, #1565C0); }
.sw-boost   .dist-bar > span { background: linear-gradient(90deg, #ff8c42, #D2691E); }
.sw-lotus   .dist-bar > span { background: linear-gradient(90deg, #1565C0, #6A1B9A); }
.sw-lotus-miner .dist-bar > span { background: linear-gradient(90deg, #5B6BFF, #1565C0); }
.sw-forest  .dist-bar > span { background: linear-gradient(90deg, #2dd4bf, #2E8B57); }
.sw-venus   .dist-bar > span { background: linear-gradient(90deg, #f472b6, #C2185B); }
.sw-venus-miner .dist-bar > span { background: linear-gradient(90deg, #6A1B9A, #C2185B); }
.sw-droplet .dist-bar > span { background: linear-gradient(90deg, #7dd3fc, #1565C0); }
.sw-private,
.sw-no-peer-id,
.sw-other,
.sw-unknown,
.sw-markets {
  opacity: 0.75;
}
.sw-private  .dist-bar > span,
.sw-no-peer-id .dist-bar > span,
.sw-other    .dist-bar > span,
.sw-unknown  .dist-bar > span,
.sw-markets  .dist-bar > span {
  background: linear-gradient(90deg, #8493AE, #5B6B8C);
}

/* --- Tables --- */
.table-scroll {
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: auto;
  background: rgba(255, 255, 255, 0.55);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 720px;
}
.data-table th {
  text-align: left;
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--dim);
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  position: sticky; top: 0;
}
.data-table td {
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  color: var(--text);
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: rgba(21, 101, 192, 0.04); }
.data-table .rank { color: var(--dim); width: 3rem; }
.data-table .num { text-align: right; white-space: nowrap; }
.data-table .mono { font-family: var(--font-mono); font-size: 0.8rem; }
.data-table .dim { color: var(--dim); }
.data-table .ellipsis { max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.data-table .reach .dim { font-weight: 400; }
.ops-table .power { color: var(--accent); font-weight: 700; }
.ops-table .pct { color: var(--text); font-weight: 600; }
.foc-table .foc-name { font-weight: 600; }
.foc-table .ok { color: var(--green); font-weight: 700; }

/* --- Run details --- */
.run-details dl.run {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 0.25rem 1rem;
  font-size: 0.85rem;
  max-width: 760px;
}
.run-details dt { color: var(--dim); text-transform: capitalize; font-weight: 500; }
.run-details dd { margin: 0; color: var(--text-2); }

/* --- Footer --- */
.site-footer {
  margin-top: 2.5rem;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.25rem 1.5rem 2.5rem;
  color: var(--dim);
  font-size: 0.8rem;
  text-align: center;
}
.footer-inner p { margin: 0 0 0.35rem; }
.muted { color: var(--dim); }

/* --- Responsive --- */
@media (max-width: 720px) {
  .site-header { margin-top: 8px; padding: 0 1rem; }
  .header-inner { padding: 0.55rem 0.75rem; gap: 0.85rem; border-radius: var(--radius-card); }
  .header-meta { width: 100%; margin-left: 0; font-size: 0.7rem; }
  .header-nav { font-size: 0.78rem; }
  .hero { padding: 2rem 0 1rem; }
  .section { padding: 1.5rem 1.25rem; }
  .dist-row { grid-template-columns: 36px 90px 1fr 50px 50px; gap: 0.5rem; font-size: 0.85rem; }
}