@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=Share+Tech+Mono&display=swap');

:root {
  --neon-green:  #5b8def;
  --neon-cyan:   #a78bfa;
  --neon-red:    #ff3d5a;
  --neon-amber:  #ffb700;
  --neon-purple: #c084fc;
  --text-primary:   #e8edff;
  --text-secondary: #8898b4;
  --text-muted:     #506080;
  --bg-void:  #06090f;
  --bg-base:  #090d1c;
  --bg-panel: #0d1428;
  --bg-panel2:#111d35;
  --border-dim:    #1b2c4a;
  --border-accent: #25395e;
  --font-pixel: 'Press Start 2P', monospace;
  --font-mono:  'Share Tech Mono', monospace;
}

* { box-sizing: border-box; }

body {
  background: var(--bg-void);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.8;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(0,0,0,0.04) 3px, rgba(0,0,0,0.04) 4px);
  pointer-events: none;
  z-index: 0;
}

/* ---- Top bar ---- */
.top-bar {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-accent);
  padding: 0.6rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.top-bar-brand {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--neon-green);
  letter-spacing: 3px;
  text-decoration: none;
}

.top-bar-brand:hover { color: var(--neon-green); }

.top-bar-back {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s;
}

.top-bar-back:hover { color: var(--text-primary); }

/* ---- Page layout ---- */
.page-wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
  position: relative;
  z-index: 1;
}

/* ---- Page title ---- */
.page-title {
  font-family: var(--font-pixel);
  font-size: clamp(0.75rem, 2.5vw, 1.1rem);
  color: var(--neon-green);
  letter-spacing: 3px;
  margin-bottom: 0.5rem;
}

.page-subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border-dim);
  padding-bottom: 1.5rem;
}

/* ---- Sections ---- */
.section {
  margin-bottom: 3rem;
}

.section-title {
  font-family: var(--font-pixel);
  font-size: 0.56rem;
  color: var(--neon-cyan);
  letter-spacing: 3px;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-accent);
}

.section p {
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.section p strong {
  color: var(--text-primary);
}

/* ---- Asset cards ---- */
.asset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.asset-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-accent);
  padding: 1.1rem 1.2rem;
}

.asset-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: rgba(91, 141, 239, 0.15);
  border: 1px solid rgba(91, 141, 239, 0.3);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.asset-icon.red {
  background: rgba(255, 61, 90, 0.15);
  border-color: rgba(255, 61, 90, 0.3);
}

.asset-name {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.asset-name.green  { color: var(--neon-green); }
.asset-name.yellow { color: #fbbf24; }
.asset-name.cyan   { color: var(--neon-cyan); }

.asset-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.asset-earn,
.asset-spend {
  font-size: 0.75rem;
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-dim);
}

.asset-earn  { color: #93c5fd; }
.asset-spend { color: #f87171; }

/* ---- Node tier table ---- */
.tier-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-top: 1rem;
}

.tier-table th {
  font-family: var(--font-pixel);
  font-size: 0.44rem;
  color: var(--text-muted);
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-accent);
  letter-spacing: 1px;
}

.tier-table td {
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--border-dim);
  color: var(--text-secondary);
}

.tier-table tr:hover td { background: var(--bg-panel2); }

.tier-name-cell {
  font-family: var(--font-pixel);
  font-size: 0.44rem;
  letter-spacing: 1px;
}

.t0 { color: #93c5fd; }
.t1 { color: #94a3b8; }
.t2 { color: #a78bfa; }
.t3 { color: #c084fc; }
.t4 { color: #e879f9; }

/* ---- Disaster list ---- */
.disaster-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}

.disaster-item {
  background: var(--bg-panel);
  border-left: 3px solid var(--neon-red);
  padding: 0.75rem 1rem;
}

.disaster-name {
  font-family: var(--font-pixel);
  font-size: 0.44rem;
  color: #f87171;
  letter-spacing: 2px;
  margin-bottom: 0.3rem;
}

.disaster-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.disaster-desc strong { color: #fbbf24; }

/* ---- Tips ---- */
.tips-list {
  list-style: none;
  padding: 0;
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.tips-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-left: 1.4rem;
  position: relative;
  line-height: 1.7;
}

.tips-list li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--neon-green);
  font-size: 0.6rem;
  top: 4px;
}

.tips-list li strong { color: var(--text-primary); }

/* ---- Controls table ---- */
.controls-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-top: 1rem;
}

.controls-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-dim);
  color: var(--text-secondary);
}

.controls-table td:first-child {
  font-family: var(--font-pixel);
  font-size: 0.44rem;
  color: var(--neon-amber);
  white-space: nowrap;
  width: 30%;
}

/* ---- Loop diagram ---- */
.loop-diagram {
  background: var(--bg-panel);
  border: 1px solid var(--border-accent);
  padding: 1.5rem 2rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 1rem;
  line-height: 2.2;
  font-family: var(--font-mono);
}

.loop-diagram .arrow     { color: var(--neon-green); }
.loop-diagram .highlight { color: var(--text-primary); }
.loop-diagram .dim       { color: var(--text-muted); }

/* ---- Callout box ---- */
.callout {
  background: rgba(57, 255, 138, 0.04);
  border: 1px solid rgba(57, 255, 138, 0.2);
  padding: 1rem 1.25rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 1rem;
  line-height: 1.8;
}

.callout strong { color: var(--neon-green); }

.callout.amber {
  background: rgba(251, 191, 36, 0.04);
  border-color: rgba(251, 191, 36, 0.2);
}

.callout.amber strong { color: #fbbf24; }

.callout.red {
  background: rgba(255, 61, 90, 0.04);
  border-color: rgba(255, 61, 90, 0.2);
}

.callout.red strong { color: #f87171; }