:root {
  --bg: #0e1311;
  --panel: #141b18;
  --panel-light: #19221e;
  --fg: #edf3ef;
  --muted: #9baaa1;
  --accent: #39b878;
  --accent-soft: #183d2b;
  --line: #29362f;
  --max: 70rem;
  --text: 43rem;
}

* { box-sizing: border-box; }

html {
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 82% 0%, rgba(57, 184, 120, 0.08), transparent 28rem),
    var(--bg);
  color: var(--fg);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1rem;
  line-height: 1.68;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.22;
  background-image: linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 100% 4px;
}

.site-header,
main,
.site-footer {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5rem;
  border-bottom: 1px solid var(--line);
  font-family: system-ui, sans-serif;
}

.brand,
.era { margin: 0; }

.brand {
  color: var(--accent);
  font-weight: 720;
  letter-spacing: 0.015em;
}

.era {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.era span {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0.25rem rgba(57, 184, 120, 0.12);
}

.hero {
  width: min(var(--text), 100%);
  padding: clamp(1rem, 2vw, 1.5rem) 0 2.5rem;
}

.kicker {
  margin: 0 0 1rem;
  color: var(--accent);
  font-family: system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, h3 {
  margin-top: 0;
  line-height: 1.1;
  letter-spacing: -0.035em;
}

h1 {
  margin-bottom: 2rem;
  max-width: 13ch;
  font-size: clamp(3.25rem, 7vw, 5rem);
  font-weight: 620;
}

h2 {
  margin-bottom: 1rem;
  max-width: 16ch;
  font-size: clamp(2.25rem, 5vw, 4.35rem);
  font-weight: 620;
}

h3 {
  margin-bottom: 0.6rem;
  font-size: 1.3rem;
  font-weight: 650;
}

.hero > p:not(.kicker),
.why,
.section-intro,
.architecture-note {
  max-width: 43rem;
}

.hero > p { margin: 0 0 0.8rem; }

.hero > p:not(.kicker, .thanks) { color: #c9d3cd; }

.thanks {
  margin-top: 1.3rem !important;
  color: var(--accent);
  font-size: 1.15rem;
  font-style: italic;
}

.why,
.more-countries {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.why { margin-top: 2.5rem; }

summary {
  position: relative;
  padding: 1rem 2rem 1rem 0;
  cursor: pointer;
  color: var(--muted);
  font-family: system-ui, sans-serif;
  font-size: 0.9rem;
  font-weight: 650;
  list-style: none;
}

summary::-webkit-details-marker { display: none; }

summary::after {
  position: absolute;
  top: 50%;
  right: 0.15rem;
  content: "+";
  color: var(--accent);
  font-size: 1.25rem;
  font-weight: 400;
  transform: translateY(-50%);
}

details[open] summary::after { content: "\2212"; }

summary:hover,
summary:focus-visible { color: var(--fg); }

.why div {
  padding: 0.25rem 0 1rem;
  color: var(--muted);
}

.why p { margin: 0 0 1rem; }

.section {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}

.section-intro {
  margin: 0 0 2.5rem;
  color: #c4cec8;
  font-size: 1.1rem;
}

.figures {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding: 1px;
  margin: 2.5rem 0 1.75rem;
  overflow: hidden;
  list-style: none;
  border-radius: 14px;
  background: var(--line);
}

.figures li {
  min-height: 12.5rem;
  padding: 1.4rem;
  background: var(--panel);
}

.figures strong {
  display: block;
  margin-bottom: 2.75rem;
  color: var(--accent);
  font-family: system-ui, sans-serif;
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.045em;
  line-height: 1;
}

.figures span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.architecture {
  display: grid;
  grid-template-columns: 1fr 9rem 1fr;
  align-items: stretch;
}

.host-card {
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(145deg, var(--panel-light), var(--panel));
}

.host-card p:last-child {
  margin: 0;
  color: var(--muted);
}

.host-label {
  margin: 0 0 1.75rem;
  color: var(--accent);
  font-family: system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.data-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--muted);
  font-family: system-ui, sans-serif;
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-align: center;
  text-transform: uppercase;
}

.data-flow i {
  position: relative;
  width: 70%;
  height: 1px;
  background: var(--accent);
}

.data-flow i::before,
.data-flow i::after {
  position: absolute;
  top: -3px;
  width: 7px;
  height: 7px;
  content: "";
  border: solid var(--accent);
  transform: rotate(45deg);
}

.data-flow i::before { left: 0; border-width: 0 0 1px 1px; }
.data-flow i::after { right: 0; border-width: 1px 1px 0 0; }

.architecture-note,
.architecture-notes {
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.architecture-notes {
  max-width: 43rem;
}

.architecture-notes p { margin: 0 0 0.75rem; }

.map {
  position: relative;
  margin: 2.5rem 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #0b0d0c;
}

.map::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  box-shadow: inset 0 0 5rem rgba(14, 19, 17, 0.35);
}

.map img {
  display: block;
  width: 100%;
  height: auto;
}

.audience-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 1rem;
}

.breakdown {
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}

.breakdown h3 { margin-bottom: 0.15rem; }

.breakdown-note {
  margin: 0 0 1.5rem;
  color: var(--muted);
  font-family: system-ui, sans-serif;
  font-size: 0.72rem;
}

.bars { margin: 0; }

.bars div {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  padding: 0.65rem 0 0.8rem;
  overflow: hidden;
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
}

.bars div::before,
.bars div::after {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  content: "";
}

.bars div::before { width: 100%; background: var(--line); }
.bars div::after { width: var(--value); background: var(--accent); }

.bars dt,
.bars dd { margin: 0; }
.bars dt { color: #d1dad5; }
.bars dd { color: var(--accent); font-variant-numeric: tabular-nums; }
.bars-compact div { padding-top: 0.42rem; }

.screen-note {
  display: grid;
  grid-template-columns: minmax(12rem, 0.7fr) 1.3fr;
  gap: 2rem;
  padding: 1.35rem 1.5rem;
  margin: 1rem 0 2.5rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
}

.screen-note strong {
  font-size: 1.05rem;
  font-weight: 650;
}

.screen-note span { color: #bdcbc3; font-size: 0.9rem; }


.countries-title {
  margin-bottom: 1.25rem;
  font-family: system-ui, sans-serif;
}

.countries {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 2rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.countries li {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.55rem 0;
  border-top: 1px solid var(--line);
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
}

.countries .n,
.countries .pct { font-variant-numeric: tabular-nums; }
.countries .n { color: var(--fg); }
.countries .pct { min-width: 3.1rem; color: var(--accent); text-align: right; }

.more-countries { margin-top: 1rem; }
.more-countries summary { color: var(--accent); }
.continuation { padding: 0 0 1rem; }

.closing {
  position: relative;
  max-width: 52rem;
  padding: clamp(3rem, 6vw, 5rem) 0 clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem);
  margin: 0;
  border-left: 1px solid var(--accent);
}

.closing::before {
  position: absolute;
  top: clamp(3.5rem, 8vw, 7rem);
  left: -0.38rem;
  width: 0.7rem;
  height: 0.7rem;
  content: "";
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0.45rem var(--accent-soft);
}

.closing p {
  margin: 0 0 1.5rem;
  font-size: clamp(1.75rem, 4vw, 3.4rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.closing footer {
  color: var(--accent);
  font-family: system-ui, sans-serif;
  font-size: 0.8rem;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: system-ui, sans-serif;
  font-size: 0.75rem;
}

.site-footer p { margin: 0; }

@media (max-width: 780px) {
  .figures { grid-template-columns: 1fr 1fr; }
  .figures li { min-height: 10.5rem; }

  .architecture { grid-template-columns: 1fr; }
  .data-flow { min-height: 7rem; }
  .data-flow i { width: 1px; height: 2.25rem; }
  .data-flow i::before,
  .data-flow i::after { left: -3px; }
  .data-flow i::before { top: 0; border-width: 1px 0 0 1px; }
  .data-flow i::after { top: auto; right: auto; bottom: 0; border-width: 0 1px 1px 0; }

  .audience-grid { grid-template-columns: 1fr; }
  .screen-note { grid-template-columns: 1fr; gap: 0.35rem; }
}

@media (max-width: 560px) {
  .site-header { min-height: 4rem; }
  .era { font-size: 0.68rem; }
  h1 { font-size: clamp(2.2rem, 11vw, 3.25rem); }
  h2 { font-size: clamp(2.1rem, 11vw, 3rem); }
  .hero { padding-top: 1rem; }
  .figures { grid-template-columns: 1fr; }
  .figures li { min-height: auto; }
  .figures strong { margin-bottom: 1.5rem; }
  .countries { grid-template-columns: 1fr; }
  .closing { padding-left: 1.5rem; }
  .site-footer { display: block; }
  .site-footer p + p { margin-top: 0.25rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}