:root {
  --bg: #0a0e14;
  --bg-soft: #0f1520;
  --bg-card: #121a28;
  --border: #1f2a3c;
  --text: #d6e2f0;
  --text-dim: #8b9bb4;
  --accent: #58e6d9;
  --accent-2: #7c8cff;
  --warn: #ff7a5c;
  --radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, sans-serif;
}

canvas { position: fixed; inset: 0; }
#stars-canvas { z-index: 0; }
#trail-canvas { z-index: 1; }
#top-canvas { z-index: 2; cursor: grab; touch-action: none; }
#top-canvas:active { cursor: grabbing; }

header, aside, #controls, #hint, #sources, #loading { z-index: 3; }

/* ---------- header ---------- */

header {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 16px 20px;
  pointer-events: none;
  gap: 12px;
}
header > * { pointer-events: auto; }

.eyebrow {
  font: 500 10px "JetBrains Mono", monospace;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  text-transform: uppercase;
}
#brand-title {
  margin: 4px 0 6px;
  font-family: "JetBrains Mono", monospace;
  font-size: 22px;
  font-weight: 700;
  background: linear-gradient(90deg, var(--warn), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stats {
  font: 11px "JetBrains Mono", monospace;
  color: var(--text-dim);
  max-width: 460px;
  line-height: 1.7;
}
.stats b { color: var(--text); font-weight: 600; }
.stats .pha { color: var(--warn); }

.header-right {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}
.chip-row { display: flex; gap: 6px; align-items: center; }
.chip-label {
  font: 10px "JetBrains Mono", monospace;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-right: 2px;
}
.chip {
  border: 1px solid var(--border);
  background: rgba(15, 21, 32, 0.75);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 5px 12px;
  font: 600 11px "JetBrains Mono", monospace;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: color 0.15s, border-color 0.15s;
}
.chip:hover { color: var(--text); }
.chip.active { color: #06241f; background: var(--accent); border-color: var(--accent); }
.chip-warn.active { color: #2b0d05; background: var(--warn); border-color: var(--warn); }
.spacer { width: 8px; }

#search-row { position: relative; }
#search {
  width: 220px;
  border: 1px solid var(--border);
  background: rgba(15, 21, 32, 0.75);
  color: var(--text);
  border-radius: 999px;
  padding: 6px 14px;
  font: 11px "JetBrains Mono", monospace;
  backdrop-filter: blur(8px);
  outline: none;
}
#search:focus { border-color: var(--accent); }
#search::placeholder { color: var(--text-dim); }
#search-results {
  position: absolute;
  top: 32px; right: 0;
  width: 250px;
  background: rgba(18, 26, 40, 0.96);
  border: 1px solid var(--border);
  border-radius: 10px;
  backdrop-filter: blur(12px);
  overflow: hidden;
  display: none;
}
#search-results.open { display: block; }
.sr-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  border: 0;
  background: none;
  color: var(--text);
  font: 11px "JetBrains Mono", monospace;
  padding: 7px 12px;
  cursor: pointer;
  text-align: left;
}
.sr-row:hover { background: rgba(88, 230, 217, 0.1); color: var(--accent); }
.sr-row i { font-style: normal; color: var(--warn); }
.sr-row span { color: var(--text-dim); }

#legend {
  position: fixed;
  right: 20px;
  bottom: 128px;
  display: none;
  gap: 12px;
  font: 11px "JetBrains Mono", monospace;
  color: var(--text-dim);
  background: rgba(15, 21, 32, 0.8);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  backdrop-filter: blur(8px);
}
#legend.open { display: flex; }
#legend span { display: flex; align-items: center; gap: 5px; }
#legend i {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
}

#tour {
  position: fixed;
  left: 50%;
  top: 84px;
  transform: translateX(-50%) translateY(-16px);
  width: min(560px, calc(100vw - 32px));
  background: rgba(15, 21, 32, 0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  padding: 16px 18px 12px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  z-index: 5;
}
#tour.open { opacity: 1; pointer-events: auto; transform: translateX(-50%); }
#tour-text {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text);
}
#tour-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
}
#tour-dots { display: flex; gap: 5px; }
#tour-dots i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--border);
  display: inline-block;
}
#tour-dots i.on { background: var(--accent); }
#tour-foot button {
  border: 0;
  background: none;
  color: var(--text-dim);
  font: 11px "JetBrains Mono", monospace;
  cursor: pointer;
  padding: 4px 8px;
}
#tour-foot button:hover { color: var(--accent); }

#ticker {
  position: fixed;
  left: 50%;
  bottom: 66px;
  transform: translateX(-50%);
  border: 1px solid var(--border);
  background: rgba(15, 21, 32, 0.8);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 5px 14px;
  font: 11px "JetBrains Mono", monospace;
  cursor: pointer;
  backdrop-filter: blur(8px);
  white-space: nowrap;
}
#ticker:hover { border-color: var(--accent); }
#ticker b { color: var(--accent); font-weight: 600; }
#ticker i { font-style: normal; color: var(--warn); }

.lang-switch {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  background: rgba(15, 21, 32, 0.75);
  backdrop-filter: blur(8px);
}
.lang-switch button {
  border: 0; background: none;
  color: var(--text-dim);
  font: 600 11px "JetBrains Mono", monospace;
  padding: 5px 11px;
  cursor: pointer;
}
.lang-switch button.active { color: #06241f; background: var(--accent); }

.gh-link {
  display: grid; place-items: center;
  width: 30px; height: 30px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(15, 21, 32, 0.75);
  color: var(--text-dim);
  text-decoration: none;
  backdrop-filter: blur(8px);
}
.gh-link:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- close-approach panel ---------- */

#ca-panel {
  position: fixed;
  left: 16px; bottom: 76px;
  width: 308px;
}
#ca-toggle {
  border: 1px solid var(--border);
  background: rgba(15, 21, 32, 0.85);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 14px;
  font: 600 11px "JetBrains Mono", monospace;
  cursor: pointer;
  backdrop-filter: blur(8px);
}
#ca-toggle:hover { border-color: var(--accent); color: var(--accent); }
#ca-body {
  display: none;
  margin-bottom: 8px;
  background: rgba(18, 26, 40, 0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  padding: 12px;
}
#ca-panel.open #ca-body { display: block; }
#ca-panel { display: flex; flex-direction: column-reverse; align-items: flex-start; }

#ca-title {
  font: 700 10px "JetBrains Mono", monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}
#ca-list { max-height: 38vh; overflow-y: auto; }
.ca-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: 0;
  background: none;
  color: var(--text-dim);
  font: 11px "JetBrains Mono", monospace;
  padding: 5px 6px;
  border-radius: 6px;
  cursor: pointer;
  text-align: left;
}
.ca-row:hover { background: rgba(88, 230, 217, 0.08); color: var(--text); }
.ca-row.sel { background: rgba(88, 230, 217, 0.14); color: var(--accent); }
.ca-row time { width: 86px; flex: none; }
.ca-row b { flex: 1; color: var(--text); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ca-row.sel b { color: var(--accent); }
.ca-row i { font-style: normal; color: var(--warn); }
#ca-note {
  margin-top: 8px;
  font-size: 10px;
  color: var(--text-dim);
  line-height: 1.5;
  opacity: 0.8;
}

/* ---------- info card ---------- */

#card {
  position: fixed;
  top: 150px; right: 16px;
  width: 290px;
  background: rgba(18, 26, 40, 0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  padding: 14px;
  display: none;
}
#card.open { display: block; }
#card-head { display: flex; align-items: center; gap: 8px; }
#card-title { flex: 1; font: 700 15px "JetBrains Mono", monospace; color: var(--text); }
#card-close { border: 0; background: none; color: var(--text-dim); font-size: 17px; cursor: pointer; }
#card-close:hover { color: var(--accent); }
#card-badges { display: flex; gap: 6px; margin: 8px 0 4px; flex-wrap: wrap; }
.badge {
  font: 600 10px "JetBrains Mono", monospace;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.badge.pha { color: var(--warn); border-color: rgba(255, 122, 92, 0.5); background: rgba(255, 122, 92, 0.08); }
.row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(31, 42, 60, 0.6);
  font-size: 11.5px;
}
.row:last-child { border-bottom: 0; }
.row span { color: var(--text-dim); }
.row b { font: 500 11.5px "JetBrains Mono", monospace; color: var(--accent); text-align: right; }
.row b.warn { color: var(--warn); }
#card-watch {
  width: 100%;
  margin-top: 10px;
  border: 1px solid rgba(88, 230, 217, 0.4);
  background: rgba(88, 230, 217, 0.1);
  color: var(--accent);
  border-radius: 8px;
  padding: 8px;
  font: 600 12px "JetBrains Mono", monospace;
  cursor: pointer;
  display: none;
}
#card-watch.show { display: block; }
#card-watch:hover { background: rgba(88, 230, 217, 0.2); }

/* ---------- controls / misc ---------- */

#controls {
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: calc(100vw - 20px);
  padding: 9px 14px;
  background: rgba(15, 21, 32, 0.85);
  border: 1px solid var(--border);
  border-radius: 999px;
  backdrop-filter: blur(10px);
  font: 12px "JetBrains Mono", monospace;
}
#controls button {
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  border-radius: 999px;
  padding: 5px 11px;
  font: inherit;
  cursor: pointer;
}
#controls button:hover { border-color: var(--accent); color: var(--accent); }
#speed { accent-color: var(--accent); width: 100px; }
#speed-label { color: var(--accent); min-width: 64px; text-align: center; }
#date-label { font-weight: 700; }
#date-input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  font: inherit;
  padding: 4px 7px;
  color-scheme: dark;
}

#hint {
  position: fixed;
  right: 20px; bottom: 76px;
  color: var(--text-dim);
  font: 11px "JetBrains Mono", monospace;
  opacity: 0.8;
}
#sources {
  position: fixed;
  right: 20px; bottom: 96px;
  max-width: 330px;
  text-align: right;
  color: var(--text-dim);
  font-size: 10px;
  opacity: 0.7;
  line-height: 1.5;
}

#loading {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--bg);
  transition: opacity 0.4s;
}
#loading.done { opacity: 0; pointer-events: none; }
#loading span {
  font: 13px "JetBrains Mono", monospace;
  color: var(--text-dim);
  animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.35; } }

#menu-toggle {
  display: none;
  border: 1px solid var(--border);
  background: rgba(15, 21, 32, 0.8);
  color: var(--text);
  border-radius: 999px;
  width: 36px; height: 36px;
  font-size: 15px;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

#sources a { color: var(--text-dim); }
#sources a:hover { color: var(--accent); }

@media (max-width: 760px) {
  .stats, .eyebrow, #hint, #sources, #ticker, #legend { display: none; }
  #brand-title { font-size: 15px; white-space: nowrap; }
  header { align-items: flex-start; }
  #menu-toggle { display: block; }
  .header-right { display: none; }
  header.menu-open .header-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    position: absolute;
    top: 52px; right: 10px;
    background: rgba(15, 21, 32, 0.95);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    backdrop-filter: blur(14px);
  }
  .chip { padding: 4px 9px; font-size: 10px; }
  #search { width: 196px; }
  #controls {
    gap: 7px;
    padding: 8px 12px;
    font-size: 11px;
    bottom: 10px;
  }
  #controls button { padding: 5px 9px; }
  #speed { width: 78px; }
  #date-input, #btn-shot { display: none; }
  #ca-panel { top: 52px; bottom: auto; left: 10px; width: calc(100vw - 20px); }
  #ca-body { margin: 8px 0 0; }
  #card { top: auto; bottom: 120px; right: 12px; left: 12px; width: auto; }
  #tour { top: 56px; }
}