/* ── SPACEXPLORER — mission-control HUD ─────────────────────────────── */

:root {
  --amber: #ffb347;
  --amber-dim: rgba(255, 179, 71, 0.55);
  --cyan: #7fd6ff;
  --ink: #dde6ee;
  --ink-dim: #8696a6;
  --panel: rgba(8, 13, 20, 0.78);
  --panel-edge: rgba(127, 214, 255, 0.18);
  --font-display: 'Michroma', sans-serif;
  --font-ui: 'Chakra Petch', sans-serif;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  background: #02050a;
  font-family: var(--font-ui);
  color: var(--ink);
}

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

/* subtle vignette over the 3D view */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 2, 8, 0.55) 100%);
  z-index: 1;
}

/* HUD fades in once the scene boots */
#hud-header, #nav-panel, #time-bar {
  opacity: 0;
  transition: opacity 1.2s ease 0.3s;
}
body.loaded #hud-header, body.loaded #nav-panel, body.loaded #time-bar { opacity: 1; }

/* ── Header ─────────────────────────────────────────────────────────── */

#hud-header {
  position: fixed;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 10;
  pointer-events: none;
}

#hud-header h1 {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.42em;
  color: var(--ink);
  text-shadow: 0 0 24px rgba(127, 214, 255, 0.5);
}

#hud-header h1 span { color: var(--amber); }

#hud-header p {
  margin-top: 7px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

#ipo-countdown {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 10px 22px;
  border: 1px solid var(--amber-dim);
  border-radius: 6px;
  background: var(--panel);
  animation: spcx-breathe 3s ease-in-out infinite;
}

@keyframes spcx-breathe {
  0%, 100% { box-shadow: 0 0 14px rgba(255, 179, 71, 0.10); }
  50%       { box-shadow: 0 0 30px rgba(255, 179, 71, 0.30); }
}

#ipo-punchline {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
  text-shadow: 0 0 10px rgba(255, 179, 71, 0.4);
  text-transform: uppercase;
}

#ipo-cells { display: flex; gap: 6px; }

.ipo-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(2, 5, 10, 0.8);
  border: 1px solid var(--amber-dim);
  border-radius: 3px;
  padding: 4px 12px;
  min-width: 50px;
}

.ipo-cv {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.ipo-cl {
  font-size: 7px;
  letter-spacing: 0.16em;
  color: var(--ink-dim);
  text-transform: uppercase;
  margin-top: 2px;
}

#ipo-price {
  align-items: baseline;
  gap: 10px;
}

#ipo-price-val {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  text-shadow: 0 0 14px rgba(255, 179, 71, 0.45);
}

#ipo-price-change {
  font-family: var(--font-display);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

#ipo-price-change.up   { color: #4dffb4; }
#ipo-price-change.down { color: #ff6b6b; }

.ipo-price-meta {
  font-size: 8px;
  letter-spacing: 0.16em;
  color: var(--ink-dim);
  text-transform: uppercase;
  align-self: center;
}

#ipo-countdown.live {
  animation: spcx-live-pulse 1.8s ease-in-out infinite;
  border-color: rgba(255, 179, 71, 0.65);
}

@keyframes spcx-live-pulse {
  0%, 100% { box-shadow: 0 0 16px rgba(255, 179, 71, 0.20); }
  50%       { box-shadow: 0 0 40px rgba(255, 179, 71, 0.50); }
}

#ipo-countdown.celebrate { animation: spcx-pulse 1.2s ease-in-out 5; }

@keyframes spcx-pulse {
  0%, 100% { box-shadow: none; transform: scale(1); }
  50% { box-shadow: 0 0 26px rgba(255, 179, 71, 0.65); transform: scale(1.06); }
}

/* ── Navigator ──────────────────────────────────────────────────────── */

#nav-panel {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 196px;
  z-index: 10;
  background: linear-gradient(90deg, var(--panel), transparent);
  border-right: 1px solid var(--panel-edge);
  backdrop-filter: blur(6px);
  transition: transform 0.35s ease, opacity 1.2s ease 0.3s;
}

#nav-panel.collapsed { transform: translateX(-196px); }

#nav-toggle {
  position: absolute;
  top: 14px;
  right: -40px;
  width: 30px;
  height: 30px;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  color: var(--cyan);
  font-size: 14px;
  cursor: pointer;
  border-radius: 3px;
}

#nav-scroll {
  height: 100%;
  overflow-y: auto;
  padding: 18px 14px 90px;
  scrollbar-width: thin;
  scrollbar-color: rgba(127, 214, 255, 0.25) transparent;
}

#nav-search {
  width: 100%;
  background: rgba(127, 214, 255, 0.06);
  border: 1px solid var(--panel-edge);
  border-radius: 4px;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 7px 10px;
  margin-bottom: 4px;
  outline: none;
}

#nav-search:focus { border-color: var(--amber-dim); }
#nav-search::placeholder { color: var(--ink-dim); }

.nav-group {
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--amber-dim);
  margin: 18px 0 6px;
  border-bottom: 1px solid rgba(255, 179, 71, 0.15);
  padding-bottom: 5px;
}

.nav-group:first-child { margin-top: 0; }

.nav-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-left: 2px solid transparent;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 13px;
  letter-spacing: 0.08em;
  padding: 5px 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.nav-item:hover { color: var(--cyan); border-left-color: var(--cyan); }

.nav-item.active {
  color: var(--amber);
  border-left-color: var(--amber);
  background: rgba(255, 179, 71, 0.07);
}

.nav-moon { padding-left: 22px; font-size: 12px; color: var(--ink-dim); }

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--ink-dim);
  padding: 4px 8px;
  cursor: pointer;
  user-select: none;
}

.toggle:hover { color: var(--ink); }
.toggle input { accent-color: var(--amber); cursor: pointer; }

/* ── Info panel ─────────────────────────────────────────────────────── */

#info-panel {
  position: fixed;
  top: 80px;
  right: 0;
  width: 320px;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
  z-index: 10;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-right: none;
  border-radius: 6px 0 0 6px;
  padding: 22px 24px;
  backdrop-filter: blur(8px);
  transform: translateX(105%);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  scrollbar-width: thin;
}

#info-panel.open { transform: translateX(0); }

#info-close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  color: var(--ink-dim);
  font-size: 20px;
  cursor: pointer;
}

#info-close:hover { color: var(--amber); }

#info-share {
  position: absolute;
  top: 12px;
  right: 40px;
  background: none;
  border: none;
  color: var(--ink-dim);
  font-size: 15px;
  cursor: pointer;
}

#info-share:hover { color: var(--cyan); }

#info-prev, #info-next {
  position: absolute;
  top: 8px;
  padding: 4px 9px;
  background: none;
  border: none;
  color: var(--ink-dim);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}

#info-prev { right: 96px; }
#info-next { right: 66px; }
#info-prev:hover, #info-next:hover { color: var(--cyan); }

.info-name {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.18em;
  color: var(--amber);
  text-transform: uppercase;
}

.info-type {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 6px 0 16px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(127, 214, 255, 0.08);
  font-size: 12.5px;
}

.info-key { color: var(--ink-dim); white-space: nowrap; }
.info-val { text-align: right; }

.info-compare { margin-top: 14px; }

.compare-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-top: 2px;
}

.info-fact {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
  border-left: 2px solid var(--amber);
  padding-left: 12px;
  font-style: italic;
}

/* ── Grand tour ─────────────────────────────────────────────────────── */

#btn-tour, #btn-spacex-tour, #btn-random {
  width: 100%;
  background: rgba(255, 179, 71, 0.08);
  border: 1px solid rgba(255, 179, 71, 0.35);
  border-radius: 4px;
  color: var(--amber);
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 8px 10px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.15s;
}

#btn-tour { margin-bottom: 6px; }

#btn-tour:hover, #btn-tour.on, #btn-spacex-tour:hover, #btn-spacex-tour.on {
  background: rgba(255, 179, 71, 0.18);
  border-color: var(--amber);
}

#btn-random {
  background: rgba(127, 214, 255, 0.06);
  border-color: var(--panel-edge);
  color: var(--cyan);
}

#btn-random:hover {
  background: rgba(127, 214, 255, 0.15);
  border-color: var(--cyan);
}

#tour-banner {
  position: fixed;
  bottom: 84px;
  left: 50%;
  transform: translate(-50%, 16px);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  border: 1px solid rgba(255, 179, 71, 0.4);
  border-radius: 30px;
  padding: 8px 16px;
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
}

#tour-banner.open { opacity: 1; pointer-events: auto; transform: translate(-50%, 0); }

#tour-info { display: flex; flex-direction: column; align-items: center; min-width: 130px; }

#tour-name {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

#tour-date { font-size: 10px; letter-spacing: 0.14em; color: var(--ink); margin-top: 2px; }
#tour-date:empty { display: none; }

#tour-step { font-size: 10px; letter-spacing: 0.2em; color: var(--ink-dim); margin-top: 2px; }

#tour-banner button {
  background: none;
  border: none;
  color: var(--ink);
  font-size: 14px;
  cursor: pointer;
  padding: 4px 6px;
}

#tour-banner button:hover { color: var(--amber); }

/* ── Mars transfer caption ──────────────────────────────────────────── */

#transfer-caption {
  position: fixed;
  bottom: 140px;
  left: 50%;
  transform: translate(-50%, 16px);
  z-index: 9;
  background: var(--panel);
  border: 1px solid rgba(255, 179, 71, 0.4);
  border-radius: 30px;
  padding: 8px 18px;
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--amber);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
}

#transfer-caption.show { opacity: 1; transform: translate(-50%, 0); }

/* ── Time bar ───────────────────────────────────────────────────────── */

#time-bar {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: 40px;
  padding: 10px 22px;
  backdrop-filter: blur(8px);
}

#btn-reverse.on { border-color: var(--amber); color: var(--amber); background: rgba(255, 179, 71, 0.1); }

#date-input {
  background: none;
  border: 1px solid var(--panel-edge);
  border-radius: 14px;
  color: var(--ink-dim);
  font-family: var(--font-ui);
  font-size: 11px;
  padding: 4px 8px;
  color-scheme: dark;
  cursor: pointer;
}

#date-input:hover { border-color: var(--amber); color: var(--amber); }

#btn-play, #btn-now, #btn-reverse {
  background: none;
  border: 1px solid var(--panel-edge);
  color: var(--cyan);
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: 0.12em;
  border-radius: 20px;
  padding: 6px 14px;
  cursor: pointer;
  transition: all 0.15s;
}

#btn-play:hover, #btn-now:hover, #btn-reverse:hover { border-color: var(--amber); color: var(--amber); }

#speed-wrap { display: flex; align-items: center; gap: 10px; }

#speed-slider {
  width: 150px;
  accent-color: var(--amber);
  cursor: pointer;
}

#speed-label {
  font-size: 11px;
  color: var(--ink-dim);
  min-width: 70px;
  letter-spacing: 0.08em;
}

#date-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  white-space: pre;
}

/* ── Labels ─────────────────────────────────────────────────────────── */

#label-layer {
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  overflow: hidden;
}

.label {
  position: absolute;
  transform: translate(-50%, -160%);
  pointer-events: auto;
  background: none;
  border: none;
  font-family: var(--font-ui);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.9);
  transition: color 0.15s;
  padding: 2px 4px;
}

.label-planet { color: var(--ink); }
.label-sun { color: var(--amber); font-size: 12px; }
.label-moon { color: var(--ink-dim); font-size: 10px; }
.label-craft { color: var(--cyan); font-size: 10px; }

.label:hover { color: var(--amber); }

/* ── Help ───────────────────────────────────────────────────────────── */

#btn-help {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 10;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  color: var(--cyan);
  font-family: var(--font-ui);
  font-size: 15px;
  cursor: pointer;
  transition: all 0.15s;
}

#btn-help:hover { border-color: var(--amber); color: var(--amber); }

#help-overlay {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -48%);
  z-index: 20;
  width: 340px;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: 8px;
  padding: 22px 26px;
  backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}

#help-overlay.open { opacity: 1; pointer-events: auto; transform: translate(-50%, -50%); }

#help-overlay h3 {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 14px;
}

.help-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(127, 214, 255, 0.08);
  font-size: 12.5px;
}

.help-row span:first-child { color: var(--cyan); white-space: nowrap; }
.help-row span:last-child { color: var(--ink); text-align: right; }

#help-about {
  margin: 12px 0 0;
  font-size: 11px;
  line-height: 1.55;
  color: var(--ink-dim);
}

/* ── Small screens ──────────────────────────────────────────────────── */

@media (max-width: 720px) {
  #hud-header h1 { font-size: 15px; }
  #hud-header p { display: none; }
  #ipo-countdown { margin-top: 7px; padding: 6px 12px; }
  #ipo-punchline { font-size: 9px; letter-spacing: 0.12em; }
  .ipo-cv { font-size: 14px; }
  .ipo-cell { padding: 3px 8px; min-width: 38px; }
  #ipo-price-val { font-size: 18px; }

  /* info panel becomes a bottom sheet */
  #info-panel {
    top: auto;
    bottom: 72px;
    left: 0;
    right: 0;
    width: 100vw;
    max-height: 44vh;
    border-radius: 12px 12px 0 0;
    border-right: 1px solid var(--panel-edge);
    /* % is of the panel's own height — the empty panel is only ~60px tall,
       so a bare percentage can't clear the 72px bottom anchor. Add it. */
    transform: translateY(calc(100% + 80px));
  }
  #info-panel.open { transform: translateY(0); }

  #time-bar { gap: 8px; padding: 8px 12px; max-width: 94vw; }
  #speed-slider { width: 80px; }
  #date-label { display: none; }
  #date-input { display: none; }

  #nav-panel { width: 200px; }
  #nav-panel.collapsed { transform: translateX(-200px); }
  #btn-tour, #btn-random { padding: 14px 10px; }
  .nav-item { padding: 9px 8px; font-size: 14px; }
  .toggle { padding: 7px 8px; font-size: 13px; }
  #btn-play, #btn-now, #btn-reverse { padding: 9px 15px; }

  #tour-banner { bottom: auto; top: 60px; }
  #btn-help { display: none; }
}

/* ── WebGL fallback ─────────────────────────────────────────────────── */

#webgl-fallback {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  background: #02050a;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px;
}

#webgl-fallback.show { display: flex; }

#webgl-fallback h2 {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.4em;
  color: var(--amber);
  margin-bottom: 18px;
}

#webgl-fallback p {
  max-width: 420px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

/* ── Onboarding toast ───────────────────────────────────────────────── */

#onboard-toast {
  position: fixed;
  bottom: 88px;
  left: 50%;
  transform: translate(-50%, 14px);
  z-index: 12;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  border: 1px solid rgba(255, 179, 71, 0.45);
  border-radius: 28px;
  padding: 9px 10px 9px 18px;
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s, transform 0.4s;
}

#onboard-toast.show { opacity: 1; pointer-events: auto; transform: translate(-50%, 0); }

#onboard-toast span { font-size: 12px; letter-spacing: 0.1em; color: var(--ink-dim); }

#onboard-tour {
  background: rgba(255, 179, 71, 0.14);
  border: 1px solid var(--amber);
  border-radius: 18px;
  color: var(--amber);
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 6px 14px;
  cursor: pointer;
}

#onboard-tour:hover { background: rgba(255, 179, 71, 0.28); }

#onboard-close {
  background: none;
  border: none;
  color: var(--ink-dim);
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
}

#onboard-close:hover { color: var(--ink); }


/* boot splash: pure CSS, paints before any JS or texture arrives */
#splash {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  background: #04060a;
  transition: opacity 0.6s ease;
}

.splash-word {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.42em;
  color: #cfd8e3;
}

.splash-word span { color: var(--amber); }

.splash-bar {
  width: 180px;
  height: 2px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.splash-fill {
  width: 40%;
  height: 100%;
  background: var(--amber-dim);
  animation: splash-sweep 1.1s ease-in-out infinite;
}

@keyframes splash-sweep {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(450%); }
}

body.loaded #splash { opacity: 0; pointer-events: none; }