:root {
  --bg: #05060f;
  --panel: rgba(18, 22, 44, 0.72);
  --panel-solid: #12162c;
  --ink: #e8ecff;
  --ink-dim: #9aa3c7;
  --accent: #6d8bff;
  --accent-2: #b58bff;
  --line: rgba(255, 255, 255, 0.12);
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  --chip-bg: rgba(0, 0, 0, 0.25);     /* [FIX-A] chip/button well bg, theme-aware */
  --chip-bg-hover: color-mix(in oklab, var(--accent) 18%, transparent);
  --on-accent: #ffffff;               /* [FIX-A] text sitting on accent fills */
}
/* ===== 3-way theme (Light/Dark/System) — base :root above = native DARK. Opposite (light) WCAG-aware auto-generated (contrast-solving ink/accent vs worst-case surface). ===== */
:root[data-theme="light"]{
  --bg: #f4f4f6;
  --panel: #f6f6f7;
  --panel-solid: #f6f6f7;
  --ink: #002bf5;
  --ink-dim: #5c6aa4;
  --accent: #2e59ff;
  --accent-2: #813aff;
  --line: rgba(0,0,0,0.10);
  --chip-bg: #6c6c6c;
  --on-accent: #ffffff;
}












* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink);
  font-family: "Noto Sans KR", system-ui, -apple-system, "Apple SD Gothic Neo", sans-serif;
  -webkit-font-smoothing: antialiased; overflow: hidden; }

.app { position: fixed; inset: 0; }
#scene { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }

.hidden { display: none !important; }

/* overlays */
.overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; z-index: 5; }
.loading { flex-direction: column; gap: 14px; color: var(--ink-dim); font-size: 14px; }
.spinner { width: 34px; height: 34px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--accent); animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* topbar + language switcher */
.topbar { position: absolute; top: max(10px, env(safe-area-inset-top)); right: max(12px, env(safe-area-inset-right)); z-index: 8; }
.topbar [data-i18n-switcher] select,
.topbar select { background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 10px; font-size: 12px; backdrop-filter: blur(8px); }

/* title card */
.title-card { text-align: center; padding: 36px 30px; max-width: 420px; }
.logo { font-family: "Orbitron", "Noto Sans KR", sans-serif; font-weight: 800; font-size: clamp(40px, 12vw, 76px);
  margin: 0 0 6px; letter-spacing: 2px;
  background: linear-gradient(120deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tagline { color: var(--ink-dim); margin: 0 0 26px; font-size: 15px; }
.hint { color: var(--ink-dim); margin: 18px 0 0; font-size: 12.5px; opacity: 0.85; }

.btn { font: inherit; font-weight: 700; border: none; border-radius: 999px; padding: 13px 26px; cursor: pointer; transition: transform .15s, box-shadow .15s; }
.btn-primary { background: linear-gradient(120deg, var(--accent), var(--accent-2)); color: var(--on-accent); box-shadow: 0 8px 24px rgba(109, 139, 255, 0.4); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); }

/* controls */
.controls { position: absolute; left: 50%; transform: translateX(-50%);
  bottom: max(16px, env(safe-area-inset-bottom)); z-index: 8; display: flex; gap: 10px; align-items: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 7px 10px; backdrop-filter: blur(10px); box-shadow: var(--shadow); }
.ctl-group { display: flex; align-items: center; gap: 8px; }
.ctl-group + .ctl-group { border-left: 1px solid var(--line); padding-left: 10px; }
.ctl-label { font-size: 11px; color: var(--ink-dim); padding: 0 2px; }
.seg { display: inline-flex; background: var(--chip-bg); border-radius: 999px; padding: 3px; }
.seg-btn { font: inherit; font-size: 12px; font-weight: 600; color: var(--ink-dim); background: transparent; border: none;
  border-radius: 999px; padding: 6px 11px; cursor: pointer; transition: background .15s, color .15s; }
.seg-btn.is-on { background: var(--accent); color: var(--on-accent); }
.icon-btn { font-size: 15px; line-height: 1; color: var(--ink); background: var(--chip-bg); border: 1px solid var(--line);
  border-radius: 999px; width: 34px; height: 34px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }
.icon-btn:hover { background: var(--chip-bg-hover); }

/* info panel */
.info { position: absolute; right: max(14px, env(safe-area-inset-right)); top: 54px; z-index: 9; width: min(280px, calc(100vw - 28px));
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; backdrop-filter: blur(12px); box-shadow: var(--shadow); }
.info-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.info-head strong { font-family: "Orbitron", "Noto Sans KR", sans-serif; font-size: 18px; color: var(--ink); }
.info-close { background: none; border: none; color: var(--ink-dim); font-size: 16px; cursor: pointer; line-height: 1; padding: 2px 6px; border-radius: 8px; }
.info-close:hover { background: rgba(255, 255, 255, 0.08); color: var(--ink); }
.info-grid { display: grid; gap: 8px; margin: 0 0 10px; }
.info-grid > div { display: flex; justify-content: space-between; gap: 10px; font-size: 13px; }
.info-grid dt { color: var(--ink-dim); margin: 0; }
.info-grid dd { margin: 0; color: var(--ink); font-weight: 600; }
.info-fact { margin: 0; font-size: 13px; line-height: 1.5; color: var(--ink); border-top: 1px solid var(--line); padding-top: 10px; }
.info-focus { margin: 8px 0 0; font-size: 11.5px; line-height: 1.45; color: var(--ink-dim); opacity: 0.85; }

.foot { position: absolute; left: 50%; transform: translateX(-50%); bottom: max(70px, calc(env(safe-area-inset-bottom) + 64px));
  z-index: 4; margin: 0; font-size: 11px; color: var(--ink-dim); opacity: 0.7; text-align: center; pointer-events: none; white-space: nowrap; }

/* V3: eclipse button active state (reuses .seg-btn / .is-on) */
#eclipseBtn.is-on, #eclipsePlayBtn.is-on { background: var(--accent-2); color: var(--on-accent); }

/* V3: exoplanet side list */
.exo-panel { position: absolute; left: max(12px, env(safe-area-inset-left)); top: 54px; z-index: 9;
  width: min(230px, calc(100vw - 28px)); background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 12px 14px; backdrop-filter: blur(12px); box-shadow: var(--shadow); }
.exo-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.exo-head strong { font-family: "Orbitron", "Noto Sans KR", sans-serif; font-size: 14px; color: var(--ink); letter-spacing: .5px; }
.exo-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.exo-list.collapsed, .exo-foot.collapsed { display: none !important; }
.exo-item { display: grid; gap: 2px; width: 100%; text-align: left; background: var(--chip-bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; cursor: pointer;
  transition: background .15s, border-color .15s; }
.exo-item:hover { background: var(--chip-bg-hover); border-color: var(--accent); }
.exo-item.is-on { border-color: var(--accent-2); background: color-mix(in oklab, var(--accent-2) 18%, transparent); }
.exo-name { font-size: 13px; font-weight: 700; color: var(--ink); }
.exo-fact { font-size: 11px; line-height: 1.4; color: var(--ink-dim); }
.exo-foot { margin: 8px 0 0; font-size: 10.5px; line-height: 1.4; color: var(--ink-dim); opacity: 0.8; }

@media (max-width: 540px) {
  .exo-panel { width: min(180px, calc(100vw - 28px)); top: 48px; padding: 10px; }
  .exo-fact { font-size: 10px; }
}

@media (max-width: 540px) {
  .foot { display: none; }
  .ctl-label { display: none; }
  /* [FIX-B] reserve right gutter for the .pmp-fab (fixed bottom-right, ~34px tall,
     z-index ~2147483000) so the centered controls HUD never overlaps it. Shift the
     HUD left of the FAB band instead of pure 50% centering. */
  .controls { left: calc(50% - 28px); max-width: calc(100vw - 56px); }
}
@media (prefers-reduced-motion: reduce) { .spinner, .btn-primary { animation: none; transition: none; } }