:root {
  --bg: #05070c;
  --bg-2: #0a0f1c;
  --panel: rgba(14, 20, 34, 0.72);
  --panel-border: rgba(125, 211, 252, 0.18);
  --accent: #7dd3fc;
  --accent-warm: #ffb347;
  --text: #e8ecf5;
  --text-dim: #8b93a7;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --zoom: 1;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 50% 30%, var(--bg-2) 0%, var(--bg) 70%);
  overflow: hidden;
  font-family: var(--font-body);
  color: var(--text);
  position: relative;
}

/* ---------- top brand strip ---------- */
.hud-top {
  position: fixed;
  top: 1.5em;
  left: 1.5em;
  z-index: 10;
  pointer-events: none;
}
.brand { display: flex; align-items: center; gap: 0.5em; font-family: var(--font-display); }
.brand-mark {
  color: var(--accent-warm);
  font-size: 1.4rem;
  text-shadow: 0 0 12px rgba(255, 179, 71, 0.7);
}
.brand-name { font-size: 1.15rem; font-weight: 600; letter-spacing: 0.02em; }
.brand-sub { margin: 0.2em 0 0 1.9em; font-size: 0.75rem; color: var(--text-dim); letter-spacing: 0.03em; }

/* ---------- 3D stage ---------- */
.stage {
  position: fixed;
  inset: 0;
  cursor: grab;
}
.stage:active { cursor: grabbing; }
.stage canvas { display: block; width: 100%; height: 100%; }

/* ---------- floating body labels (CSS2DRenderer) ---------- */
.body-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--text);
  background: rgba(10, 14, 24, 0.55);
  border: 1px solid var(--panel-border);
  padding: 0.15em 0.55em;
  border-radius: 999px;
  white-space: nowrap;
  pointer-events: none;
  transform: translate(-50%, -6px);
  backdrop-filter: blur(4px);
}
.tooltip {
  position: fixed;
  pointer-events: none;
  z-index: 20;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(8px);
  padding: 0.35em 0.7em;
  border-radius: 0.4em;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  opacity: 0;
  transform: translate(-50%, -140%);
  transition: opacity 0.1s ease;
  white-space: nowrap;
}
.tooltip.visible { opacity: 1; }

/* ---------- bottom HUD ---------- */
.hud-bottom {
  position: fixed;
  bottom: 1.5em;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.25em;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(10px);
  padding: 0.7em 1.1em;
  border-radius: 999px;
  font-family: var(--font-body);
}
.hud-btn {
  display: flex;
  align-items: center;
  gap: 0.4em;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--panel-border);
  color: var(--text);
  padding: 0.45em 0.8em;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.8rem;
  transition: background 0.15s ease;
}
.hud-btn:hover { background: rgba(125, 211, 252, 0.16); }
.hud-btn svg { fill: currentColor; }
.hud-btn.small { padding: 0.4em 0.65em; font-size: 0.9rem; }

.hud-rates { display: flex; gap: 0.3em; flex-wrap: wrap; justify-content: center; }
.rate-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--panel-border);
  color: var(--text-dim);
  padding: 0.35em 0.6em;
  border-radius: 999px;
  font-size: 0.68rem;
  font-family: var(--font-display);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.rate-btn:hover { background: rgba(125, 211, 252, 0.12); }
.rate-btn.active { background: rgba(125, 211, 252, 0.22); color: var(--text); border-color: var(--accent); }
.hud-btn.reverse-active { background: rgba(125, 211, 252, 0.22); color: var(--accent); border-color: var(--accent); }

.hud-clock {
  position: fixed;
  top: 1.5em;
  right: 1.5em;
  z-index: 10;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  backdrop-filter: blur(10px);
  padding: 0.55em 1em;
  border-radius: 0.6em;
  text-align: right;
  font-family: var(--font-display);
  pointer-events: none;
}
.clock-date { font-size: 0.66rem; color: var(--text-dim); letter-spacing: 0.05em; }
.clock-time { font-size: 1.05rem; letter-spacing: 0.04em; margin-top: 0.1em; font-variant-numeric: tabular-nums; }
.now-btn {
  pointer-events: auto;
  margin-top: 0.4em;
  width: 100%;
  background: rgba(125, 211, 252, 0.14);
  border: 1px solid var(--panel-border);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  padding: 0.3em 0;
  border-radius: 999px;
  cursor: pointer;
}
.now-btn:hover { background: rgba(125, 211, 252, 0.26); }

/* ---------- loading overlay ---------- */
.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1em;
  background: var(--bg);
  transition: opacity 0.6s ease;
}
.loading-overlay.hidden { opacity: 0; pointer-events: none; }
.loading-mark {
  font-size: 2.4rem;
  color: var(--accent-warm);
  text-shadow: 0 0 18px rgba(255, 179, 71, 0.6);
  animation: pulse 2.4s ease-in-out infinite;
}
.loading-bar {
  width: min(240px, 60vw);
  height: 3px;
  background: rgba(255,255,255,0.1);
  border-radius: 999px;
  overflow: hidden;
}
.loading-fill { height: 100%; width: 0%; background: var(--accent); transition: width 0.2s ease; }
.loading-text { font-family: var(--font-display); font-size: 0.78rem; color: var(--text-dim); letter-spacing: 0.04em; }

@keyframes pulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

.hud-zoom { display: flex; gap: 0.35em; }

/* ---------- info panel ---------- */
.info-panel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: min(320px, 85vw);
  background: var(--panel);
  border-left: 1px solid var(--panel-border);
  backdrop-filter: blur(14px);
  z-index: 15;
  padding: 2.2em 1.6em;
  transform: translateX(100%);
  transition: transform 0.28s ease;
}
.info-panel.open { transform: translateX(0); }
.info-close {
  position: absolute;
  top: 1em;
  right: 1em;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
}
.info-close:hover { color: var(--text); }
.info-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-family: var(--font-display);
}
#infoName {
  font-family: var(--font-display);
  font-size: 1.8rem;
  margin: 0.25em 0 0.1em;
}
.info-tagline { color: var(--text-dim); font-size: 0.88rem; margin: 0 0 1.4em; line-height: 1.4; }
.info-stats { margin: 0; display: grid; gap: 0.9em; }
.info-stats div { display: flex; flex-direction: column; gap: 0.15em; padding-bottom: 0.7em; border-bottom: 1px dashed var(--panel-border); }
.info-stats dt { font-size: 0.68rem; letter-spacing: 0.08em; color: var(--text-dim); text-transform: uppercase; }
.info-stats dd { margin: 0; font-size: 0.95rem; font-family: var(--font-display); }

@media (max-width: 640px) {
  .hud-bottom { flex-wrap: wrap; justify-content: center; width: 90vw; }
  .hud-top { top: 1em; left: 1em; }
}

@media (prefers-reduced-motion: reduce) {
  .orbit-ring, .sun-core { animation: none !important; }
}