:root {
  --bg: #0f1115;
  --bg-elev: #181b22;
  --bg-card: #1d2129;
  --border: #2a2f3a;
  --text: #e4e7ec;
  --text-dim: #8b919e;
  --accent: #6aa3ff;
  --ukr: #ffd54a;
  --ukr-soft: rgba(255, 213, 74, 0.18);
  --rus: #e25c5c;
  --rus-soft: rgba(226, 92, 92, 0.18);
  --sta: #6f7785;
  --sta-soft: rgba(111, 119, 133, 0.18);
  --high: #4ad17a;
  --medium: #ffb74a;
  --low: #ff6e6e;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

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

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 24px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  flex-wrap: wrap;
  gap: 16px;
}

.title-block h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.subtitle {
  margin: 6px 0 0;
  color: var(--text-dim);
  font-size: 14px;
  max-width: 720px;
}

.meta-block {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 20px 32px;
}

.card h2 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.hint {
  color: var(--text-dim);
  font-size: 13px;
  margin: 0 0 16px;
}

.chart {
  width: 100%;
  min-height: 380px;
}

/* --- Current state card --- */

.current-state .current-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 12px 0 8px;
}

.current-cell {
  padding: 18px 20px;
  border-radius: 10px;
  border: 1px solid var(--border);
  text-align: center;
}

.current-cell .label {
  color: var(--text-dim);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.current-cell .value {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  margin-top: 6px;
}

.current-cell.ukr { background: var(--ukr-soft); border-color: rgba(255, 213, 74, 0.4); }
.current-cell.ukr .value { color: var(--ukr); }
.current-cell.rus { background: var(--rus-soft); border-color: rgba(226, 92, 92, 0.4); }
.current-cell.rus .value { color: var(--rus); }
.current-cell.sta { background: var(--sta-soft); border-color: rgba(111, 119, 133, 0.4); }
.current-cell.sta .value { color: var(--sta); }

.current-month {
  text-align: center;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 13px;
}

/* --- Controls (sliders) --- */

.weights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.slider-row {
  display: grid;
  grid-template-columns: 140px 1fr 60px;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
}

.slider-row .lbl {
  font-size: 13px;
  color: var(--text);
}

.slider-row .val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  text-align: right;
}

input[type="range"] {
  width: 100%;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

.other-controls {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  display: grid;
  gap: 4px;
}

button.reset {
  margin-top: 12px;
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  justify-self: start;
}

button.reset:hover {
  background: var(--bg-elev);
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Drill-down --- */

#drilldown { display: grid; gap: 18px; }

.cluster-block {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  background: var(--bg-elev);
}

.cluster-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.cluster-head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}

.cluster-weight {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
}

.indicator-row {
  display: grid;
  grid-template-columns: 1fr 60px;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 13px;
}

.indicator-row:last-child { border-bottom: none; }

.ind-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot.high { background: var(--high); }
.dot.medium { background: var(--medium); }
.dot.low { background: var(--low); }

.ind-weight {
  font-family: var(--font-mono);
  color: var(--text-dim);
  text-align: right;
}

.cluster-empty {
  color: var(--text-dim);
  font-style: italic;
  padding: 8px 0;
}

/* --- Methodology --- */

.methodology details summary {
  cursor: pointer;
  color: var(--accent);
  padding: 4px 0;
}

.methodology code {
  background: var(--bg-elev);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
}

footer {
  padding: 20px 32px 40px;
  color: var(--text-dim);
  font-size: 12px;
  text-align: center;
}

@media (max-width: 720px) {
  .card { margin: 16px; padding: 16px; }
  .topbar { padding: 16px; }
  .current-state .current-grid { grid-template-columns: 1fr; }
  .slider-row { grid-template-columns: 110px 1fr 50px; }
}