/* ===== Base / Space Canvas ===== */
:root {
  --bg-primary: rgba(10, 8, 20, 0.82);
  --bg-secondary: rgba(30, 28, 38, 0.85);
  --bg-tertiary: rgba(45, 42, 55, 0.85);
  --text-primary: #d8d6cf;
  --text-secondary: #a8a69e;
  --text-tertiary: #7a786f;
  --border: rgba(255,255,255,0.12);
  --border-light: rgba(255,255,255,0.06);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --info-bg: rgba(10,54,96,0.85); --info-text: #8fc2f0;
  --danger-bg: rgba(90,24,24,0.85); --danger-text: #f4a0a0;
  --warning-bg: rgba(74,42,6,0.85); --warning-text: #fad08a;
  --success-bg: rgba(30,58,8,0.85); --success-text: #a4cf6a;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: #040210;
  color: var(--text-primary);
  margin: 0;
  padding: 0;
  line-height: 1.7;
  overflow-x: hidden;
}
canvas#c {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  z-index: 0;
  pointer-events: none;
}

/* ===== Content Overlay ===== */
.content-wrapper {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  background: linear-gradient(
    180deg,
    rgba(10, 8, 20, 0.0) 0%,
    rgba(10, 8, 20, 0.75) 80px,
    rgba(10, 8, 20, 0.88) 200px
  );
}

/* ===== Typography ===== */
h1 { font-size: 22px; font-weight: 500; margin-bottom: 4px; }
h2 { font-size: 17px; font-weight: 500; margin: 36px 0 12px; padding-top: 24px; border-top: 0.5px solid var(--border); }
h3 { font-size: 14px; font-weight: 500; margin: 20px 0 8px; }
p { margin-bottom: 12px; font-size: 14px; }
.subtitle { font-size: 13px; color: var(--text-secondary); margin-bottom: 28px; }
.section-desc { font-size: 13px; color: var(--text-secondary); margin-bottom: 12px; }
.prose { font-size: 14px; color: var(--text-primary); margin-bottom: 24px; line-height: 1.7; }
.prose p { margin-bottom: 10px; }
.callout { background: var(--bg-secondary); border-radius: var(--radius); padding: 14px 16px; margin: 16px 0; font-size: 13px; line-height: 1.6; }
.callout-warn { background: var(--warning-bg); color: var(--warning-text); }
.callout-info { background: var(--info-bg); color: var(--info-text); }
.callout-title { font-weight: 500; margin-bottom: 4px; }
.term { font-weight: 600; color: var(--text-primary); }

/* ===== Legend & Info Panels ===== */
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; margin: 8px 0; }
.legend-item { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--text-secondary); cursor: pointer; user-select: none; }
.legend-item.dimmed { opacity: 0.25; }
.legend-swatch { width: 14px; height: 3px; border-radius: 2px; }
.info-panel { background: var(--bg-secondary); border-radius: var(--radius); padding: 10px 14px; font-size: 13px; color: var(--text-secondary); min-height: 50px; margin-top: 8px; line-height: 1.6; }
.info-panel b, .info-title { font-weight: 500; color: var(--text-primary); }
.info-title { margin-bottom: 4px; font-size: 13px; }
.node-label { font-family: var(--font); font-size: 11px; fill: var(--text-primary); pointer-events: none; }
.node-sublabel { font-family: var(--font); font-size: 10px; fill: var(--text-secondary); pointer-events: none; }

/* ===== Tabs ===== */
.tab-bar { display: flex; gap: 4px; margin-bottom: 10px; flex-wrap: wrap; }
.tab-bar button { font-size: 12px; padding: 5px 10px; border-radius: var(--radius); cursor: pointer; background: transparent; border: 0.5px solid var(--border); color: var(--text-secondary); transition: all 0.15s; font-family: var(--font); }
.tab-bar button.active { background: var(--info-bg); color: var(--info-text); border-color: var(--info-text); }
.tab-bar button:hover { background: var(--bg-secondary); }
.strength { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 500; margin-left: 6px; }
.str-strong { background: var(--danger-bg); color: var(--danger-text); }
.str-moderate { background: var(--warning-bg); color: var(--warning-text); }
.str-emerging { background: var(--info-bg); color: var(--info-text); }

/* ===== Cards ===== */
.card-row { display: flex; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.card { flex: 1; min-width: 180px; background: var(--bg-secondary); border-radius: var(--radius); padding: 10px 12px; }
.card-title { font-size: 12px; font-weight: 500; color: var(--text-primary); margin-bottom: 4px; }
.card-body { font-size: 11px; color: var(--text-secondary); line-height: 1.5; }
.card.hub { background: var(--danger-bg); } .card.hub .card-title { color: var(--danger-text); }
.card.mech { background: var(--info-bg); } .card.mech .card-title { color: var(--info-text); }
.card.out { background: var(--warning-bg); } .card.out .card-title { color: var(--warning-text); }
.card-body, .card-title { word-wrap: break-word; overflow-wrap: break-word; }
.mech-desc { font-size: 12px; color: var(--text-secondary); margin-top: 6px; line-height: 1.5; min-height: 20px; }
a { color: var(--info-text); }

/* ===== Footer ===== */
.footer { margin-top: 32px; padding-top: 16px; border-top: 0.5px solid var(--border); font-size: 11px; color: var(--text-tertiary); line-height: 1.5; }

/* ===== SVG containers ===== */
svg { background: rgba(0,0,0,0.25); border-radius: var(--radius); }