/* ============================================================
   Explore Universe — immersive journey layer
   Full-screen spaceflight: canvas backdrop, HUD, stage captions.
   Loaded only on index.html (the journey page).
   ============================================================ */

body.journey {
  background: #03040c;
  cursor: default;
}

/* the flight canvas */
#space {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  display: block;
}

/* cinematic edge darkening */
.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(0, 0, 0, 0) 38%, rgba(0, 0, 0, 0.55) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0) 18%, rgba(0, 0, 0, 0) 82%, rgba(0, 0, 0, 0.55) 100%);
}

/* keep page content above the canvas + vignette */
.journey .page { z-index: 2; }

/* ---------- floating nav ---------- */
.nav--float {
  background: transparent;
  border-bottom-color: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.nav--float.scrolled {
  background: rgba(4, 5, 13, 0.55);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--border);
}
.nav--float .brand .orb { box-shadow: 0 0 18px rgba(124, 92, 255, 0.85), inset -4px -4px 10px rgba(0, 0, 0, 0.5); }

.live-dot {
  display: inline-flex; align-items: center; gap: 7px;
  margin-left: 12px; padding: 5px 11px; border-radius: 999px;
  border: 1px solid var(--border-hi);
  background: rgba(34, 211, 238, 0.08);
  font-family: var(--font-display); font-size: 0.66rem; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase; color: #bdf3fb;
}
.live-dot i {
  width: 6px; height: 6px; border-radius: 50%; background: #22d3ee;
  box-shadow: 0 0 10px #22d3ee; animation: pulse 2s infinite;
}

/* ---------- HUD ---------- */
.hud {
  position: fixed;
  left: 26px; top: 118px;
  z-index: 6;
  display: grid; gap: 12px;
  pointer-events: none;
  font-family: var(--font-display);
}
.hud-row { display: grid; gap: 2px; }
.hud-row .k {
  font-size: 0.6rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: rgba(150, 165, 215, 0.75);
}
.hud-row .v {
  font-size: clamp(0.95rem, 1.5vw, 1.2rem); font-weight: 600; color: #eaf0ff;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 18px rgba(34, 211, 238, 0.45);
}
.hud-row .v.warp { color: #7df9ff; text-shadow: 0 0 22px rgba(34, 211, 238, 0.9); }

/* ---------- reticle + corner brackets ---------- */
.reticle {
  position: fixed; left: 50%; top: 50%; z-index: 5;
  width: 74px; height: 74px; margin: -37px 0 0 -37px;
  pointer-events: none; opacity: 0.34;
}
/* short ticks only — full-width crosshair lines read as a glitch */
.reticle::before, .reticle::after {
  content: ""; position: absolute; background: rgba(160, 190, 255, 0.32);
}
.reticle::before { left: 50%; top: 50%; width: 1px; height: 11px; margin: -5.5px 0 0 -0.5px; }
.reticle::after { left: 50%; top: 50%; height: 1px; width: 11px; margin: -0.5px 0 0 -5.5px; }
.reticle span {
  position: absolute; inset: 24px; border-radius: 50%;
  border: 1px solid rgba(160, 190, 255, 0.28);
}
.brackets { position: fixed; inset: 0; z-index: 5; pointer-events: none; }
.brackets i {
  position: absolute; width: 26px; height: 26px;
  border: 1px solid rgba(140, 165, 235, 0.32);
}
.brackets i:nth-child(1) { top: 78px; left: 22px; border-right: 0; border-bottom: 0; }
.brackets i:nth-child(2) { top: 78px; right: 22px; border-left: 0; border-bottom: 0; }
.brackets i:nth-child(3) { bottom: 22px; left: 22px; border-right: 0; border-top: 0; }
.brackets i:nth-child(4) { bottom: 22px; right: 22px; border-left: 0; border-top: 0; }

/* ---------- journey rail ---------- */
.rail {
  position: fixed; right: 30px; top: 50%; transform: translateY(-50%);
  z-index: 6; display: grid; gap: 16px; justify-items: end;
}
.rail button {
  position: relative;
  width: 11px; height: 11px; border-radius: 50%; padding: 0;
  background: rgba(150, 170, 230, 0.28);
  border: 1px solid rgba(150, 170, 230, 0.35);
  transition: transform .35s var(--ease), background .35s, box-shadow .35s;
}
.rail button:hover { transform: scale(1.35); background: rgba(200, 215, 255, 0.7); }
.rail button.active {
  background: #7c5cff; border-color: #b9a4ff;
  box-shadow: 0 0 16px rgba(124, 92, 255, 0.9);
  transform: scale(1.3);
}
.rail button.done { background: rgba(34, 211, 238, 0.6); border-color: rgba(34, 211, 238, 0.8); }
.rail button .tip {
  position: absolute; right: calc(100% + 12px); top: 50%; transform: translateY(-50%) translateX(6px);
  white-space: nowrap; padding: 5px 10px; border-radius: 8px;
  background: rgba(8, 10, 24, 0.92); border: 1px solid var(--border-hi);
  color: var(--text); font-size: 0.72rem; font-family: var(--font-body);
  opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s;
}
.rail button:hover .tip { opacity: 1; transform: translateY(-50%) translateX(0); }

/* ---------- stage captions ---------- */
#stageLayers { position: fixed; inset: 0; z-index: 4; pointer-events: none; }
.stage-layer {
  position: absolute; left: 0; right: 0; bottom: 14vh;
  display: flex; justify-content: flex-start;
  padding-inline: clamp(22px, 5.5vw, 86px);
  opacity: 0;
  will-change: opacity, transform;
}
.stage-layer .panel {
  max-width: 500px;
  padding: 24px 28px 26px;
  border-radius: 20px;
  background: rgba(6, 8, 20, 0.58);
  border: 1px solid rgba(140, 165, 240, 0.18);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.95);
}
.stage-layer .where {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-display); font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.24em; text-transform: uppercase; color: var(--accent-2);
  margin-bottom: 12px;
}
.stage-layer .where::before {
  content: ""; width: 22px; height: 1px; background: linear-gradient(90deg, transparent, var(--accent-2));
}
.stage-layer h2 {
  font-size: clamp(1.5rem, 3.6vw, 2.5rem); margin-bottom: 10px; line-height: 1.08;
}
.stage-layer p { color: #c3cbe8; font-size: clamp(0.94rem, 1.4vw, 1.05rem); margin: 0; }

/* ---------- scroll cue ---------- */
.scroll-cue {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
  z-index: 6; display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(160, 175, 220, 0.8); font-size: 0.68rem;
  letter-spacing: 0.22em; text-transform: uppercase;
  transition: opacity .6s;
}
.scroll-cue.hide { opacity: 0; }
.scroll-cue .mouse {
  width: 20px; height: 32px; border: 1.5px solid rgba(160, 175, 220, 0.6); border-radius: 12px; position: relative;
}
.scroll-cue .mouse::after {
  content: ""; position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
  width: 3px; height: 7px; border-radius: 2px; background: var(--accent-2);
  animation: wheel 1.8s infinite;
}

/* ---------- the tall spacer that drives the flight ---------- */
.journey-spacer { height: 1150vh; }

/* ---------- ending panel ---------- */
.journey-end {
  position: relative; z-index: 3;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 80px 0;
  background: linear-gradient(180deg, rgba(3, 4, 12, 0) 0%, rgba(3, 4, 12, 0.86) 26%, #03040c 60%);
}
.journey-end .wrap { width: 100%; }
.journey-end .lead { color: var(--muted); max-width: 640px; margin-bottom: 30px; }
.journey-end .next {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 34px 0 30px;
}
.journey-end .next a {
  padding: 20px; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--panel); transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.journey-end .next a:hover { transform: translateY(-5px); border-color: var(--border-hi); box-shadow: 0 24px 55px -30px rgba(124, 92, 255, 0.8); }
.journey-end .next h4 { font-size: 1rem; margin-bottom: 6px; }
.journey-end .next p { color: var(--muted); font-size: 0.86rem; margin: 0; }

/* ---------- launch overlay ---------- */
.launch {
  position: fixed; inset: 0; z-index: 200;
  display: grid; place-items: center;
  background: radial-gradient(ellipse at 50% 40%, rgba(20, 12, 55, 0.85) 0%, rgba(3, 4, 12, 0.97) 65%);
  backdrop-filter: blur(3px);
  transition: opacity 1s var(--ease), visibility 1s;
}
.launch.gone { opacity: 0; visibility: hidden; }
.launch-inner { max-width: 660px; padding: 0 26px; text-align: center; }
.launch .badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px; border-radius: 999px; margin-bottom: 24px;
  border: 1px solid var(--border-hi); background: rgba(124, 92, 255, 0.1);
  font-family: var(--font-display); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase; color: #cdd5ff;
}
.launch h1 { font-size: clamp(2.2rem, 6.4vw, 4.2rem); margin-bottom: 18px; }
.launch p { color: var(--muted); font-size: clamp(1rem, 1.7vw, 1.15rem); margin-bottom: 30px; }
.launch .btn { font-size: 1rem; padding: 15px 32px; }
.launch .hint {
  margin-top: 26px; color: var(--faint); font-size: 0.78rem; letter-spacing: 0.1em;
  display: flex; gap: 18px; justify-content: center; flex-wrap: wrap;
}
.launch .hint span { display: inline-flex; align-items: center; gap: 7px; }

/* lock scrolling until launch */
body.locked { overflow: hidden; height: 100vh; }

/* ---------- cockpit UI retires when the ending arrives ---------- */
.hud, .rail, .reticle, .brackets, #stageLayers, .scroll-cue {
  transition: opacity .6s var(--ease);
}
body.arrived .hud,
body.arrived .rail,
body.arrived .reticle,
body.arrived .brackets,
body.arrived #stageLayers,
body.arrived .scroll-cue { opacity: 0; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .journey-end .next { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .hud { left: 16px; top: 96px; gap: 9px; }
  .hud-row .v { font-size: 0.95rem; }
  .rail { right: 14px; gap: 13px; }
  .rail button .tip { display: none; }
  .brackets i { width: 18px; height: 18px; }
  .brackets i:nth-child(1) { top: 72px; left: 12px; }
  .brackets i:nth-child(2) { top: 72px; right: 12px; }
  .brackets i:nth-child(3) { bottom: 12px; left: 12px; }
  .brackets i:nth-child(4) { bottom: 12px; right: 12px; }
  .reticle { opacity: 0.3; width: 54px; height: 54px; margin: -27px 0 0 -27px; }
  .stage-layer { bottom: 12vh; padding-inline: 18px; }
  .stage-layer .panel { max-width: 100%; padding: 18px 18px 20px; }
  .stage-layer h2 { font-size: 1.32rem; }
  .journey-spacer { height: 950vh; }
  .scroll-cue { bottom: 20px; }
  .journey-end .next { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-cue .mouse::after { animation: none; }
}