/* Orbit or Bust! — dark space-program theme */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0b0e17;
  --panel: rgba(16, 21, 34, 0.88);
  --panel-border: rgba(110, 140, 200, 0.22);
  --text: #dfe6f5;
  --muted: #8b96ad;
  --accent: #7fd4ff;
  --amber: #f2b632;
  --good: #9fe870;
  --bad: #f0685a;
}

html, body { height: 100%; overflow: hidden; }
body {
  font-family: system-ui, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  user-select: none;
}

#game { position: fixed; inset: 0; display: block; }

kbd {
  background: rgba(255,255,255,0.12);
  border-radius: 4px;
  padding: 0 5px;
  font-size: 0.85em;
  font-family: inherit;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }

/* ---------- panels & buttons ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px 12px;
  backdrop-filter: blur(6px);
}
.panel-title {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 6px 0 6px;
}

.btn {
  background: rgba(120, 150, 210, 0.14);
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
}
.btn:hover:not(:disabled) { background: rgba(130, 170, 240, 0.3); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn.primary { background: #1d6fa8; border-color: #3f97d4; }
.btn.primary:hover { background: #2585c4; }
.btn.good { background: #2c6b2f; border-color: #4a9950; }
.btn.bad { background: #7a2d26; border-color: #a84a41; }
.btn.sm { padding: 3px 8px; font-size: 12px; }
.btn.big { width: 100%; padding: 12px; font-size: 17px; font-weight: 700; margin-top: 8px; }
.btn-row { display: flex; gap: 6px; margin-top: 6px; }
.btn-row .btn { flex: 1; }

input {
  width: 100%;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 8px;
  font-size: 13px;
  margin-bottom: 6px;
}

/* ---------- topbar ---------- */
#topbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: 42px;
  display: flex; align-items: center; gap: 18px;
  padding: 0 14px;
  background: linear-gradient(180deg, rgba(10,13,22,0.95), rgba(10,13,22,0.75));
  border-bottom: 1px solid var(--panel-border);
  z-index: 20;
}
.brand { font-weight: 800; font-size: 16px; letter-spacing: 0.02em; }
.res { display: flex; gap: 16px; font-weight: 600; }
#funds { color: var(--good); }
#science { color: var(--accent); }

/* ---------- editor ---------- */
#editor-ui { display: none; }
.scene-editor #editor-ui { display: block; }

#palette-wrap {
  position: fixed; top: 52px; left: 10px; bottom: 10px;
  width: 250px;
  overflow-y: auto;
  z-index: 10;
}
.pal-cat {
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--amber);
  margin: 10px 0 4px;
}
.pal-part {
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 7px 9px;
  margin-bottom: 6px;
  cursor: pointer;
  background: rgba(255,255,255,0.03);
  transition: background 0.12s, border-color 0.12s;
}
.pal-part:hover:not(.locked) { background: rgba(127, 212, 255, 0.12); border-color: var(--accent); }
.pal-part.locked { opacity: 0.45; cursor: default; }
.pp-name { font-weight: 700; font-size: 13px; }
.pp-meta { font-size: 11px; color: var(--accent); margin: 2px 0; }
.pp-desc { font-size: 11px; color: var(--muted); }
.pp-cost { font-size: 11px; color: var(--good); margin-top: 2px; }

#editor-right {
  position: fixed; top: 52px; right: 10px;
  width: 270px;
  max-height: calc(100vh - 62px);
  overflow-y: auto;
  z-index: 10;
}
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 10px; }
.stats div { display: flex; justify-content: space-between; font-size: 13px; }
.stats span { color: var(--muted); }
.stage-row {
  display: flex; justify-content: space-between; gap: 6px;
  font-size: 12px;
  padding: 4px 6px;
  border-left: 3px solid var(--amber);
  background: rgba(255,255,255,0.03);
  margin-bottom: 3px;
}
.warn { color: var(--amber); font-size: 12px; margin-top: 4px; }
.hint { font-size: 11px; color: var(--muted); margin-top: 8px; line-height: 1.4; }

/* ---------- flight ---------- */
#flight-ui { display: none; }
.scene-flight #flight-ui { display: block; }

#hud-left {
  position: fixed; top: 52px; left: 10px;
  width: 210px;
  z-index: 10;
}
.hud-row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px;
  padding: 2px 0;
  gap: 6px;
}
.hud-row span { color: var(--muted); }
.warp-row { margin-top: 6px; }
.nodehud { color: var(--accent); font-size: 12px; margin-top: 6px; }

#missions-hud {
  position: fixed; top: 52px; right: 10px;
  width: 240px;
  z-index: 10;
  font-size: 12px;
}
.mh-title {
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 4px;
}
.mh-item { margin-bottom: 6px; }
.mh-item b { display: block; color: var(--amber); }
.mh-item span { color: var(--muted); }

#hud-bottom {
  position: fixed; bottom: 10px; left: 50%;
  transform: translateX(-50%);
  display: flex; align-items: flex-end; gap: 10px;
  z-index: 10;
}
.gauge {
  position: relative;
  width: 26px; height: 110px;
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  overflow: hidden;
}
.gauge-fill {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 0%;
  transition: height 0.1s linear;
}
.gauge-fill.thr { background: linear-gradient(180deg, #ffd75e, #e66a2c); }
.gauge-fill.fuel { background: linear-gradient(180deg, #7fd4ff, #1d6fa8); }
.gauge label {
  position: absolute; bottom: 2px; left: 0; right: 0;
  text-align: center;
  font-size: 8px; color: rgba(255,255,255,0.8);
  text-shadow: 0 1px 2px #000;
}
#flight-buttons { display: flex; flex-direction: column; gap: 5px; align-items: center; }
#next-stage { font-size: 12px; }
.sas { opacity: 0.45; cursor: pointer; }
.sas.on { opacity: 1; background: #2c6b2f; border-color: #4a9950; }

#controls-help {
  position: fixed; bottom: 10px; left: 10px;
  font-size: 11px; color: var(--muted);
  z-index: 9;
  max-width: 330px;
}
#controls-help b { color: var(--text); }

/* ---------- map ---------- */
#map-ui { display: none; }
.map-open #map-ui { display: block; }
.map-open #controls-help { display: none; }
.map-open #hud-bottom { display: none; }

#map-info {
  position: fixed; top: 52px; left: 230px;
  font-size: 13px; line-height: 1.5;
  z-index: 10;
}
#node-panel {
  position: fixed; bottom: 10px; left: 50%;
  transform: translateX(-50%);
  width: 420px;
  z-index: 11;
}
.node-btns { display: flex; gap: 3px; }
#map-help {
  position: fixed; bottom: 10px; right: 10px;
  font-size: 11px; color: var(--muted);
  z-index: 10;
  max-width: 260px;
}

/* ---------- toasts ---------- */
#toasts {
  position: fixed; top: 52px; left: 50%;
  transform: translateX(-50%);
  z-index: 40;
  display: flex; flex-direction: column; gap: 6px;
  pointer-events: none;
}
.toast {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  opacity: 0;
  transform: translateY(-8px);
  transition: all 0.3s;
  max-width: 480px;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.good { border-left-color: var(--good); }
.toast.bad { border-left-color: var(--bad); }
.toast.sci { border-left-color: var(--amber); }

/* ---------- modal ---------- */
#modal {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 50;
  display: flex; align-items: center; justify-content: center;
}
#modal-box {
  position: relative;
  background: #121828;
  border: 1px solid var(--panel-border);
  border-radius: 14px;
  padding: 22px 26px;
  width: min(560px, 92vw);
  max-height: 84vh;
  overflow-y: auto;
}
#modal-close { position: absolute; top: 10px; right: 10px; }
#modal-content h2 { margin-bottom: 10px; font-size: 20px; }
.summary div { margin-bottom: 6px; font-size: 14px; }
.summary .muted { margin-top: 10px; }
#modal-content .btn.primary { margin-top: 14px; }

.tech {
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 10px 12px;
  margin: 8px 0;
}
.tech.unlocked { border-color: rgba(159, 232, 112, 0.4); }
.tech-parts { font-size: 11px; color: var(--accent); margin: 4px 0; }
.tech .tag { color: var(--good); font-size: 11px; font-weight: 700; letter-spacing: 0.1em; }
.tech .muted { font-size: 12px; }

.mission {
  display: flex; flex-direction: column;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 7px 0;
  font-size: 13px;
}
.mission span { color: var(--muted); font-size: 12px; }
.mission.done b { color: var(--good); }

.craft-save-row { display: flex; gap: 6px; margin-bottom: 12px; }
.craft-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* scrollbars */
::-webkit-scrollbar { width: 9px; }
::-webkit-scrollbar-thumb { background: rgba(120,150,210,0.25); border-radius: 5px; }
::-webkit-scrollbar-track { background: transparent; }