* { box-sizing: border-box; }

:root {
  --bg: #0c0d12;
  --panel: #14151d;
  --ink: #e7e5ef;
  --dim: #8b899c;
  --rule: #26283a;
  --accent: #b6ffd8;
  --flame: #ffb15c;
  --tension: #ff8a8a;
  --support: #7fd1ff;
  --qualify: #d3a8ff;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, monospace;
  line-height: 1.55;
}

body {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

header {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 24px;
  margin-bottom: 32px;
}

h1 {
  font-size: 1.9rem;
  margin: 0 0 8px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 .tag {
  color: var(--dim);
  font-weight: 400;
  font-style: italic;
}

.tagline {
  color: var(--ink);
  margin: 0 0 10px;
  opacity: 0.9;
}

.credit {
  color: var(--dim);
  font-size: 0.85rem;
  margin: 0;
}

.credit a {
  color: var(--dim);
}

#controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

button {
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  border-radius: 6px;
  border: 1px solid var(--rule);
  background: var(--panel);
  color: var(--ink);
  padding: 8px 14px;
}

button:hover {
  border-color: var(--dim);
}

.ghost-btn {
  background: transparent;
}

.candle-total {
  color: var(--flame);
  font-size: 0.85rem;
  margin-left: auto;
}

#propositions {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.prop {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 14px 16px 12px;
  margin: 6px 0;
  margin-left: calc(var(--depth, 0) * 22px);
  transition: opacity 0.25s ease, transform 0.2s ease;
  scroll-margin-top: 24px;
}

.prop.in-focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset;
}

.prop.dimmed {
  opacity: 0.25;
}

.prop-head {
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.prop-num {
  font-weight: 700;
  color: var(--accent);
  font-size: 0.95rem;
}

.prop-text {
  margin: 6px 0 8px;
}

.prop-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.link-pill {
  font-size: 0.72rem;
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--dim);
}

.link-pill.link-supports { color: var(--support); border-color: color-mix(in srgb, var(--support) 40%, var(--rule)); }
.link-pill.link-tensions { color: var(--tension); border-color: color-mix(in srgb, var(--tension) 40%, var(--rule)); }
.link-pill.link-qualifies { color: var(--qualify); border-color: color-mix(in srgb, var(--qualify) 40%, var(--rule)); }
.link-pill.link-incoming { opacity: 0.8; }

.candle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 0.75rem;
  border-radius: 999px;
  background: transparent;
  color: var(--flame);
  border: 1px solid var(--rule);
}

.candle-btn:hover {
  border-color: var(--flame);
}

.flame {
  filter: saturate(1.2);
}

footer {
  margin-top: 48px;
  border-top: 1px solid var(--rule);
  padding-top: 20px;
  color: var(--dim);
  font-size: 0.82rem;
}

footer a {
  color: var(--dim);
}

footer p {
  margin: 0 0 10px;
}

@media (max-width: 520px) {
  .prop {
    margin-left: calc(var(--depth, 0) * 10px);
  }
}