:root {
  --bg: #03060f;
  --bg2: #070d1a;
  --bg3: #0c1524;
  --accent: #00e5ff;
  --accent2: #00ff99;
  --accent3: #ff6b35;
  --text: #c8ddf0;
  --text2: #6a8caa;
  --border: rgba(0, 229, 255, 0.12);
  --border2: rgba(0, 229, 255, 0.25);
  --font-mono: 'Share Tech Mono', monospace;
  --font-display: 'Orbitron', sans-serif;
}

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

html, body {
  width: 100%; height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  overflow: hidden;
  user-select: none;
}

/* ── LOADER ─────────────────────────────────── */
#overlay-loader {
  position: fixed; inset: 0; z-index: 1000;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.8s ease;
}
#overlay-loader.hidden { opacity: 0; pointer-events: none; }

.loader-inner {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.loader-ring {
  width: 80px; height: 80px;
  border: 2px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loader-text {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 10px;
  color: var(--accent);
  text-shadow: 0 0 30px rgba(0,229,255,0.5);
}
.loader-sub {
  font-size: 12px;
  color: var(--text2);
  letter-spacing: 3px;
}
.loader-bar {
  width: 240px; height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.loader-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.3s ease;
  box-shadow: 0 0 8px var(--accent);
}

/* ── HEADER ─────────────────────────────────── */
header {
  height: 52px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
  position: relative; z-index: 10;
  flex-shrink: 0;
}
.logo {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 900;
  letter-spacing: 6px;
  color: var(--accent);
  text-shadow: 0 0 20px rgba(0,229,255,0.4);
}
.logo-sub {
  font-size: 9px; letter-spacing: 4px;
  color: var(--text2);
  margin-left: 14px;
}
.header-center {
  display: flex; gap: 12px;
}
.stat-pill {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 12px;
  display: flex; flex-direction: column; align-items: center;
}
.stat-label { font-size: 8px; letter-spacing: 2px; color: var(--text2); }
.stat-val { font-size: 14px; color: var(--accent); font-family: var(--font-display); font-weight: 700; }

.btn-icon {
  background: var(--bg3); border: 1px solid var(--border2);
  color: var(--accent); width: 36px; height: 36px;
  border-radius: 4px; font-size: 18px; cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  display: flex; align-items: center; justify-content: center;
}
.btn-icon:hover { background: var(--border); border-color: var(--accent); }

.recent-launches-box {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 19;
  width: 220px;
  max-height: min(42vh, 320px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(7, 13, 26, 0.94);
  border: 1px solid var(--border2);
  border-radius: 4px;
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.45);
  pointer-events: auto;
}
.recent-launches-box-title {
  font-family: var(--font-display);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent2);
  flex-shrink: 0;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.recent-launches-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  min-height: 0;
}
.recent-launches-list::-webkit-scrollbar { width: 4px; }
.recent-launches-empty {
  font-size: 10px;
  color: var(--text2);
  letter-spacing: 1px;
  padding: 8px 0;
  text-align: center;
}
.recent-launch-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: rgba(0, 229, 255, 0.04);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  text-align: left;
  color: inherit;
  font-family: inherit;
}
.recent-launch-item:hover {
  border-color: var(--accent);
  background: rgba(0, 229, 255, 0.12);
}
.recent-launch-name {
  font-size: 11px;
  color: var(--accent);
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.recent-launch-date {
  font-size: 9px;
  color: var(--text2);
  letter-spacing: 0.5px;
}

.filter-select {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 8px 10px;
  border-radius: 4px;
  letter-spacing: 1px;
  cursor: pointer;
}
.filter-select:focus {
  outline: none;
  border-color: var(--accent);
}
.filter-loading {
  font-size: 10px;
  color: var(--text2);
  letter-spacing: 1px;
}
.group-btn .group-count {
  opacity: 0.65;
  font-size: 9px;
  margin-left: 4px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ── PROPAGATION INDICATOR ──────────────────── */
.prop-indicator {
  width: 14px; height: 14px;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.prop-indicator.active { opacity: 1; }
.prop-indicator .prop-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent2);
  box-shadow: 0 0 8px rgba(0,255,153,0.6);
  animation: prop-pulse 1.1s ease-in-out infinite;
}
@keyframes prop-pulse {
  0%, 100% { transform: scale(0.7); opacity: 0.55; }
  50%      { transform: scale(1.15); opacity: 1; }
}

/* ── LAYOUT ─────────────────────────────────── */
#main-layout {
  display: flex;
  height: calc(100vh - 52px);
  overflow: hidden;
}

/* ── SIDEBAR ─────────────────────────────────── */
#sidebar {
  position: relative;
  width: 268px;
  flex-shrink: 0;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 12px;
  display: flex; flex-direction: column; gap: 4px;
}
#sidebar::-webkit-scrollbar { width: 4px; }
#sidebar::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

.section-title {
  font-family: var(--font-display);
  font-size: 9px; letter-spacing: 4px;
  color: var(--text2);
  padding: 8px 0 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}

.filter-group { margin-bottom: 14px; }
.filter-label {
  font-size: 9px; letter-spacing: 3px;
  color: var(--text2);
  display: block; margin-bottom: 6px;
}

#searchInput {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 7px 10px;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.2s;
}
#searchInput:focus { border-color: var(--accent); }
#searchInput::placeholder { color: var(--text2); }

.group-list {
  display: flex; flex-direction: column; gap: 3px;
}
.group-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 2px;
  padding: 6px 10px;
  text-align: left;
  cursor: pointer;
  border-radius: 3px;
  transition: all 0.15s;
}
.group-btn:hover { border-color: var(--accent2); color: var(--accent2); }
.group-btn.active { background: rgba(0,229,255,0.08); border-color: var(--accent); color: var(--accent); }

.view-controls { display: flex; flex-direction: column; gap: 4px; }
.view-mode-list { display: flex; flex-direction: column; gap: 3px; }
.view-mode-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 7px 8px;
  cursor: pointer;
  border-radius: 3px;
  text-align: left;
  transition: all 0.15s;
}
.view-mode-btn:hover { border-color: var(--accent2); color: var(--text); }
.view-mode-btn.active { background: rgba(255,107,53,0.1); border-color: var(--accent3); color: var(--accent3); }
.btn-ctrl {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 1px;
  padding: 6px 8px;
  cursor: pointer; border-radius: 3px;
  text-align: left;
  transition: all 0.15s;
}
.btn-ctrl:hover { border-color: var(--accent2); color: var(--text); }
.btn-ctrl.active { background: rgba(0,255,153,0.08); border-color: var(--accent2); color: var(--accent2); }

.map-list { display: flex; flex-direction: column; gap: 3px; }
.map-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  padding: 6px 8px;
  cursor: pointer;
  border-radius: 3px;
  text-align: left;
  transition: all 0.15s;
}
.map-btn:hover { border-color: var(--accent); color: var(--text); }
.map-btn.active { background: rgba(0,229,255,0.08); border-color: var(--accent); color: var(--accent); }
.map-hint {
  margin-top: 6px;
  font-size: 9px;
  line-height: 1.4;
  color: var(--text2);
  letter-spacing: 0.5px;
}

.slider-row {
  display: flex; align-items: center; gap: 10px;
}
input[type=range] {
  flex: 1; height: 2px; -webkit-appearance: none;
  background: var(--border2); border-radius: 2px; outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}
#dotSizeVal { font-size: 12px; color: var(--accent); min-width: 20px; }

/* ── SAT PANEL (FlightRadar24-style) ──────────── */
.sat-panel {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  background: rgba(7, 13, 26, 0.98);
  border-right: 1px solid var(--border2);
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.45);
  transform: translateX(-105%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.sat-panel.open {
  transform: translateX(0);
  pointer-events: auto;
}
.sat-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 12px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: rgba(12, 21, 36, 0.85);
}
.sat-panel-title {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent2);
  line-height: 1.35;
  word-break: break-word;
  min-width: 0;
}
.sat-panel-close {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg3);
  color: var(--text2);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.sat-panel-close:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 229, 255, 0.08);
}
.sat-panel-body {
  flex: 1;
  overflow-y: auto;
  border: none;
  border-radius: 0;
  background: transparent;
  min-height: 0;
}
.sat-panel-body::-webkit-scrollbar { width: 4px; }
.sat-panel-body::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

/* ── SAT INFO ─────────────────────────────────── */
.sat-info {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px;
  min-height: 120px;
  font-size: 11px;
}
.sat-panel-body.sat-info {
  background: transparent;
  border: none;
  padding: 12px;
  min-height: 0;
}
.sat-info-empty { color: var(--text2); font-size: 11px; text-align: center; padding: 20px 0; letter-spacing: 1px; }
.sat-info-row { display: flex; justify-content: space-between; padding: 3px 0; border-bottom: 1px solid var(--border); }
.sat-info-row:last-child { border-bottom: none; }
.sat-info-key { color: var(--text2); font-size: 10px; letter-spacing: 1px; }
.sat-info-val { color: var(--accent); font-size: 11px; }
.sat-info-name {
  font-family: var(--font-display);
  font-size: 12px; font-weight: 700;
  color: var(--accent2);
  letter-spacing: 2px;
  margin-bottom: 8px;
  word-break: break-all;
}
.sat-info-section {
  font-size: 8px;
  letter-spacing: 2px;
  color: var(--text2);
  margin: 8px 0 4px;
  padding-top: 6px;
  border-top: 1px solid var(--border);
}
.sat-info-val.warn { color: var(--accent3); }
.sat-info-val.ok { color: var(--accent2); }
.sat-info-val.dim { color: var(--text2); font-size: 10px; }
.sat-info-val-wrap {
  max-width: 58%;
  text-align: right;
  word-break: break-word;
  line-height: 1.35;
}

/* ── OBSERVER ───────────────────────────────── */
.observer-panel {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px;
}
.coord-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 5px;
}
.coord-label {
  font-size: 9px;
  letter-spacing: 1px;
  color: var(--text2);
  min-width: 42px;
  flex-shrink: 0;
}
.coord-input {
  flex: 1;
  min-width: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 6px;
  border-radius: 3px;
  outline: none;
}
.coord-input:focus { border-color: var(--accent); }
.coord-wide { font-size: 10px; }
.observer-actions {
  display: flex;
  gap: 4px;
  margin-top: 6px;
}
.btn-sm { flex: 1; text-align: center; padding: 5px 4px; font-size: 9px; }
.observer-hint {
  margin-top: 8px;
  font-size: 9px;
  line-height: 1.4;
  color: var(--text2);
  letter-spacing: 0.3px;
}
.observer-hint.ok { color: var(--accent2); }
.observer-hint.warn { color: var(--accent3); }

.ground-hint {
  margin-top: 8px;
  font-size: 9px;
  line-height: 1.45;
  color: var(--text2);
  letter-spacing: 0.3px;
}

/* ── GROUND VIEW HUD ─────────────────────────── */
#groundHud {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 15;
  display: none;
  flex-direction: column;
  gap: 6px;
  min-width: 168px;
  padding: 10px 12px;
  background: rgba(7, 13, 26, 0.88);
  border: 1px solid var(--border2);
  border-radius: 4px;
  pointer-events: none;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.35);
}
.ground-hud-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}
.ground-hud-label {
  font-size: 8px;
  letter-spacing: 2px;
  color: var(--text2);
}
.ground-hud-val {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent3);
  text-align: right;
}

.ground-prompt {
  position: absolute;
  inset: 0;
  z-index: 12;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  pointer-events: none;
  background: rgba(3, 6, 15, 0.55);
}
.ground-prompt-title {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 4px;
  color: var(--accent3);
  margin-bottom: 10px;
  text-align: center;
}
.ground-prompt-text {
  max-width: 320px;
  font-size: 11px;
  line-height: 1.5;
  color: var(--text);
  text-align: center;
  letter-spacing: 0.5px;
}

/* ── GLOBE ─────────────────────────────────── */
#globe-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 45%, #0a1830 0%, #040810 55%, #010308 100%);
}

#globe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  cursor: grab;
  z-index: 1;
}
#globe:active { cursor: grabbing; }

/* ── TOOLTIP ─────────────────────────────────── */
#tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(7,13,26,0.95);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 6px 10px;
  font-size: 11px;
  color: var(--text);
  display: none;
  z-index: 20;
  box-shadow: 0 0 16px rgba(0,229,255,0.2);
  max-width: 200px;
}
#tooltip .tt-name { font-family: var(--font-display); font-size: 11px; font-weight: 700; color: var(--accent2); letter-spacing: 1px; margin-bottom: 3px; }
#tooltip .tt-row { display: flex; gap: 8px; justify-content: space-between; font-size: 10px; }
#tooltip .tt-key { color: var(--text2); }
#tooltip .tt-val { color: var(--accent); }

/* ── COMPASS ─────────────────────────────────── */
#compass {
  position: absolute; top: 16px; left: 16px;
  z-index: 18;
  width: 32px; height: 32px;
  border: 1px solid var(--border2);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: flex-start;
  padding-top: 4px;
  justify-content: center;
  pointer-events: none;
}
.compass-n {
  font-family: var(--font-display);
  font-size: 10px; font-weight: 700;
  color: var(--accent3);
  letter-spacing: 0;
  position: relative; top: -6px;
}

/* ── TIME SIMULATION CONTROL ─────────────────── */
#timeControl {
  position: absolute;
  right: 16px;
  bottom: 16px;
  z-index: 18;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 280px;
  max-width: min(360px, calc(100% - 32px));
  padding: 10px 12px;
  background: rgba(7, 13, 26, 0.92);
  border: 1px solid var(--border2);
  border-radius: 4px;
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.4);
  pointer-events: auto;
}
.time-control-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.time-control-title {
  font-size: 8px;
  letter-spacing: 2px;
  color: var(--text2);
}
.sim-time-status {
  font-family: var(--font-display);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--accent3);
}
.sim-time-status.live { color: var(--accent2); }
.sim-time-status.paused { color: var(--text2); }
.sim-time-display {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sim-time-local {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.5px;
  line-height: 1.3;
}
.sim-time-utc {
  font-size: 10px;
  color: var(--text2);
  letter-spacing: 0.5px;
}
.time-control-row {
  display: flex;
  gap: 4px;
  align-items: stretch;
}
.btn-time {
  flex: 1;
  min-width: 0;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  padding: 8px 4px;
  cursor: pointer;
  border-radius: 3px;
  transition: all 0.15s;
}
.btn-time:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 229, 255, 0.06);
}
.btn-time-speed {
  flex: 1.4;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent2);
}
.btn-time-speed:hover { color: var(--accent2); border-color: var(--accent2); }
.time-control-datetime {
  display: flex;
  gap: 6px;
  align-items: center;
}
.sim-time-input {
  flex: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 8px;
  border-radius: 3px;
  outline: none;
}
.sim-time-input:focus { border-color: var(--accent); }
.btn-time-apply {
  flex: 0 0 auto;
  font-size: 10px;
  letter-spacing: 1px;
  padding: 6px 10px;
  color: var(--accent2);
}

#mapAttribution {
  position: absolute;
  left: 12px;
  bottom: 10px;
  max-width: calc(100% - 24px);
  font-size: 9px;
  line-height: 1.3;
  color: rgba(200, 221, 240, 0.55);
  letter-spacing: 0.3px;
  pointer-events: none;
  z-index: 5;
}

/* ── STARS BACKGROUND ─────────────────────────── */
#globe-wrap::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 70%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 55% 15%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 75% 40%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 90% 85%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 20% 90%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 65% 60%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 45% 45%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 85% 10%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 5% 55%, rgba(255,255,255,0.5) 0%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}