:root {
  --fg: #ffffff;
  --dim: rgba(255, 255, 255, 0.42);
  --ok: #8affc0;
  --err: #ff8f80;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  /* clean soft glow (no CRT / chromatic fringing) */
  --holo: 0 0 8px rgba(255, 255, 255, 0.22);
}

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

html, body {
  height: 100%;
  background: #04050a;
  overflow: hidden;
}

body {
  color: var(--fg);
  font-family: var(--mono);
  -webkit-font-smoothing: antialiased;
}

/* ---------- top menu (music links) ---------- */
.menu {
  position: fixed;
  top: clamp(1rem, 3.5vh, 2.2rem);
  left: 0;
  right: 0;
  z-index: 2;
  text-align: center;
  pointer-events: none;
  perspective: 720px;                 /* match the console's 3D space */
}
.menu-inner {
  display: inline-grid;               /* stack prompt + links in one cell */
  justify-items: center;
  pointer-events: auto;
  cursor: pointer;
  transform: rotateX(40deg);          /* same back-tilt as the console */
  transform-origin: 50% 0%;
  padding: 0.6rem 1.4rem;             /* generous hover target */
  font-family: var(--mono);
  text-transform: uppercase;
  font-size: clamp(0.58rem, 1.7vw, 0.78rem);
  letter-spacing: 0.16em;
  color: var(--fg);
  text-shadow: var(--holo);
  white-space: nowrap;
}
.menu-prompt, .menu-links {
  grid-area: 1 / 1;                   /* overlap — box size never changes */
  transition: opacity 0.18s ease;
}
.menu-links { opacity: 0; visibility: hidden; }
.menu-inner:hover .menu-prompt,
.menu-inner.revealed .menu-prompt { opacity: 0; visibility: hidden; }
.menu-inner:hover .menu-links,
.menu-inner.revealed .menu-links { opacity: 1; visibility: visible; }
.menu-links a {
  color: var(--fg);
  text-decoration: none;
  opacity: 0.85;
  transition: opacity 0.2s ease, text-shadow 0.2s ease;
}
.menu-links a:hover { opacity: 1; text-shadow: 0 0 12px rgba(255, 255, 255, 0.65); }
.menu-sep { opacity: 0.35; margin: 0 0.55em; }

/* tiny mute toggle */
.mute {
  position: fixed;
  bottom: clamp(0.8rem, 2.5vh, 1.4rem);
  right: clamp(0.8rem, 2.5vw, 1.4rem);
  z-index: 3;
  pointer-events: auto;
  background: transparent;
  border: 0;
  padding: 0.4rem;
  line-height: 0;
  color: var(--dim);
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s ease, color 0.2s ease;
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.2));
}
.mute:hover { opacity: 1; color: var(--fg); }
.mute .slash { display: none; }
.mute.muted .waves { display: none; }
.mute.muted .slash { display: block; }

/* full-viewport 3D canvas */
#scene {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100dvh;
  display: block;
  z-index: 0;
}

/* ---------- floating terminal / hologram HUD ---------- */
.hud {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 0 1.5rem clamp(1.25rem, 5vh, 3rem);
  pointer-events: none;
  text-align: center;
  perspective: 720px;                 /* 3D space for the tilt */
}

#signup {
  position: relative;
  pointer-events: auto;
  width: min(90vw, 30rem);            /* tighter console */
  transform: rotateX(40deg);          /* hard backward tilt */
  transform-origin: 50% 100%;
  text-transform: uppercase;          /* whole console in caps */
}

.hud-label {
  font-family: var(--mono);
  font-weight: 500;
  font-size: clamp(0.9rem, 4.1vw, 1.55rem);   /* elevated, one line */
  letter-spacing: 0.02em;
  white-space: nowrap;                         /* keep it on a single line */
  color: var(--fg);
  text-shadow: 0 0 14px rgba(255, 255, 255, 0.35);
  margin: 0 0 0.75rem;
}
.hud-lead {
  font-family: var(--mono);
  font-size: clamp(0.62rem, 1.9vw, 0.82rem);
  letter-spacing: 0.03em;
  color: var(--dim);
  text-shadow: var(--holo);
  max-width: 27rem;                            /* ~two lines */
  text-wrap: balance;
  margin: 0 auto 1.4rem;
  line-height: 1.5;
}

.term-rows {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
}

/* terminal row: transparent input over mirrored text + block cursor */
.term {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  max-width: 100%;
  font-family: var(--mono);
  font-size: clamp(0.72rem, 2.5vw, 1.05rem);
  color: var(--fg);
  cursor: text;
  text-shadow: var(--holo);
}
.term-out { white-space: pre; text-transform: uppercase; }
.term-out.placeholder { color: var(--dim); }
.term-cursor {
  display: inline-block;
  color: var(--fg);
  visibility: hidden;                       /* only the focused row shows a cursor */
  animation: blink 1.06s steps(1) infinite;
}
.term:focus-within .term-cursor { visibility: visible; }
.term-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: transparent;
  outline: none;
  font: inherit;
  letter-spacing: inherit;
  color: transparent;
  caret-color: transparent;
  cursor: text;
}
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

.hud-submit {
  pointer-events: auto;
  font-family: var(--mono);
  text-transform: uppercase;
  font-size: clamp(0.66rem, 2vw, 0.84rem);
  letter-spacing: 0.14em;
  background: transparent;
  border: 0;
  color: var(--fg);
  text-shadow: var(--holo);
  cursor: pointer;
  opacity: 0.8;
  margin: 1.35rem 0 0;
  padding: 0.3rem 0.7rem;
  transition: opacity 0.2s ease, text-shadow 0.2s ease;
}
.hud-submit:hover {
  opacity: 1;
  text-shadow: 0 0 13px rgba(120, 220, 255, 0.75), var(--holo);
}
.hud-submit:active { transform: translateY(1px); }

.hud-msg {
  min-height: 1.2em;
  font-family: var(--mono);
  font-size: clamp(0.74rem, 2vw, 0.92rem);
  letter-spacing: 0.03em;
  margin: 0.75rem 0 0;
  color: var(--fg);
  text-shadow: var(--holo);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.hud-msg.show { opacity: 1; }
.hud-msg.ok  { color: var(--ok);  text-shadow: 0 0 10px rgba(120, 255, 180, 0.5); }
.hud-msg.err { color: var(--err); text-shadow: 0 0 10px rgba(255, 120, 90, 0.5); }

/* consent microcopy */
.hud-consent {
  font-family: var(--mono);
  text-transform: none;
  font-size: clamp(0.5rem, 1.5vw, 0.62rem);
  letter-spacing: 0.02em;
  color: var(--dim);
  margin: 0.9rem 0 0;
  opacity: 0.7;
}
.hud-consent a { color: var(--dim); text-decoration: underline; }
.hud-consent a:hover { color: var(--fg); }

/* COPPA age gate */
.coppa { display: none; }
#signup.asking .hud-label,
#signup.asking .hud-lead,
#signup.asking .term-rows,
#signup.asking .hud-submit,
#signup.asking .hud-consent { display: none; }
#signup.asking .coppa { display: block; }
.coppa-q {
  font-family: var(--mono);
  text-transform: uppercase;
  font-size: clamp(0.72rem, 2.4vw, 1rem);
  letter-spacing: 0.06em;
  color: var(--fg);
  text-shadow: var(--holo);
  margin: 0;
}
.coppa-choices {
  display: flex;
  gap: 1.8rem;
  justify-content: center;
  margin-top: 1.1rem;
}
.coppa-btn {
  font-family: var(--mono);
  text-transform: uppercase;
  font-size: clamp(0.66rem, 2vw, 0.84rem);
  letter-spacing: 0.12em;
  background: transparent;
  border: 0;
  color: var(--fg);
  text-shadow: var(--holo);
  cursor: pointer;
  opacity: 0.8;
  padding: 0.3rem 0.7rem;
  transition: opacity 0.2s ease, text-shadow 0.2s ease;
}
.coppa-btn:hover { opacity: 1; text-shadow: 0 0 13px rgba(255, 255, 255, 0.7), var(--holo); }

/* collapse the prompt once transmitted */
#signup.done .hud-label,
#signup.done .hud-lead,
#signup.done .term-rows,
#signup.done .hud-submit,
#signup.done .hud-consent,
#signup.done .coppa { display: none; }

@media (prefers-reduced-motion: reduce) {
  .term-cursor { animation: none; }
}