/* ═══ vr.css ═══
   2D overlay chrome (back link, Enter VR button). Tokens match the flat
   site's :root values. The dusk dome itself is painted in dome.js — this
   file is just the DOM layer on top of the <a-scene> canvas. */

:root {
  --bg: #080808;
  --text: #f5f5f0;
  --muted: rgba(245, 245, 240, 0.4);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --ember: #b8863b;
  --serif: 'Playfair Display', Georgia, serif;
  --sans: 'Syne', system-ui, sans-serif;
}

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  overflow: hidden;
}

body.accessible {
  --sans: 'Atkinson Hyperlegible', system-ui, sans-serif;
  --serif: 'Atkinson Hyperlegible', system-ui, sans-serif;
  font-size: 1.1em;
}

a-scene {
  width: 100%;
  height: 100%;
}

.vr-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

.vr-overlay > * {
  pointer-events: auto;
}

.back-link {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  background: rgba(15, 15, 15, 0.55);
  border: 1px solid var(--border);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.back-link:hover {
  border-color: var(--border-hover);
  background: rgba(15, 15, 15, 0.75);
}

.enter-vr-btn {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(15, 15, 15, 0.55);
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  cursor: pointer;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.enter-vr-btn:hover {
  border-color: var(--ember);
  transform: translateX(-50%) translateY(-2px);
}

.enter-vr-btn[hidden] {
  display: none;
}

.loading-note {
  position: absolute;
  bottom: 1.25rem;
  right: 1.25rem;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.phase-note {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ─── HUD controls (bottom-right): turn ‹ ›, recenter ⌖, mute ♪ ───
   Primarily the phone/desktop 2D fallback's only way to turn + recenter
   (VR_IPHONE_FALLBACK_ADDENDUM.md §5) — no controller to snap-turn with — but
   present on desktop too. Small, semi-transparent, never over panel content. */
.hud-controls {
  position: absolute;
  bottom: 1.25rem;
  right: 1.25rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.hud-btn {
  width: 2.75rem;
  height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(15, 15, 15, 0.55);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
}

.hud-btn:hover { border-color: var(--border-hover); background: rgba(15, 15, 15, 0.75); }
.hud-btn:active { transform: scale(0.92); }
.hud-btn.muted { color: var(--muted); }
.hud-btn.recenter-btn { font-size: 1.2rem; }



/* Onboarding hint — one line, centered near the bottom, fades after the
   first interaction (§14 of the build directive).
   Sits at the very bottom of the frame, not 5.25rem up: at 5.25rem it landed
   across the lower body text of the bio card and covered 20% of its on-screen
   area on arrival — precisely when a visitor is reading it (VR_TEST_REPORT A5).
   1.4rem clears the .hud-controls row's own 1.25rem baseline, and the pill is
   centred while the HUD is right-aligned, so they don't meet until the viewport
   gets very narrow (where the copy is shorter anyway). */
.onboard-hint {
  position: absolute;
  bottom: 1.4rem;
  /* Centred via left/right:0 + auto margins, NOT left:50% + translateX(-50%).
     With left:50% and no explicit width, an absolutely-positioned box
     shrink-to-fits into only the space from the 50% line to the right edge —
     187px on a 375px phone — so this wrapped to a cramped 5-line block on
     mobile while looking fine on desktop. fit-content keeps the pill hugging
     one line of text when there's room. */
  left: 0;
  right: 0;
  margin-inline: auto;
  width: fit-content;
  /* Narrower than the old 34rem: with the full desktop sentence this pill ran
     nearly the width of the frame and read as a browser notification bar rather
     than part of the dusk scene. The copy is one short line now (index.html). */
  max-width: min(90vw, 26rem);
  /* border-box so max-width covers the padding+border too — as content-box it
     resolved to 337 + 35 padding + 2 border = 375px, i.e. edge-to-edge on a
     375px phone with no breathing room at the screen edges. */
  box-sizing: border-box;
  text-align: center;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--text);
  /* Quieter fill than the 0.5 pill: it should read as a whisper over the dome,
     not a system banner. */
  background: rgba(15, 15, 15, 0.38);
  border: 1px solid var(--border);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  opacity: 1;
  /* cubic-bezier ≈ GSAP power2.inOut — the scene-wide curve (§3). */
  transition: opacity 0.8s cubic-bezier(0.45, 0, 0.55, 1);
}

.onboard-hint.hidden { opacity: 0; }

/* The landscape nudge ("Turn your phone sideways for the full view") was
   removed at Sebastian's request — see the note in index.html. Its styles are
   gone with it; don't reinstate without asking. */

}

/* Arrival veil — a full-screen dark wash that fades away on load, so the
   dome eases in rather than snapping on (build directive item 12's "elegant
   fade-in"; the per-letter name-scatter is the other half of the arrival).
   Under reduced-motion it's removed instantly (no fade). */
.arrival-veil {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: #050505;
  opacity: 1;
  pointer-events: none;
  /* Quick fade (was 1.2s) — a long dark hold read as a broken/stuck load
     (VR_BUGFIX item 10). The per-letter name-scatter carries the arrival now. */
  transition: opacity 0.6s cubic-bezier(0.45, 0, 0.55, 1);
}
.arrival-veil.gone { opacity: 0; }

@media (prefers-reduced-motion: reduce) {
  .arrival-veil { transition: none; }
}

@media (prefers-reduced-motion: reduce) {
  .back-link, .enter-vr-btn, .hud-btn { transition: none; }
  .onboard-hint { transition: none; }
}

/* ─── iOS device-motion permission dialog ───────────────────────────────
   A-Frame's built-in `device-orientation-permission-ui` (enabled by default
   on the scene) gates gyroscope "magic window" look-around behind iOS's
   mandatory DeviceOrientationEvent.requestPermission() tap. On iPhone this
   dialog is the FIRST thing a visitor sees, before they can look around at
   all — and A-Frame's stock styling is a white 300x200 box in `sans-serif`
   with a cyan Allow button and a hot-pink Deny button, which reads as a
   browser error against the dusk dome.

   VR_IPHONE_FALLBACK_ADDENDUM.md §3 asks for it to match the site, so these
   restyle it to the same glass-pill language as the HUD (.hud-btn) and back
   link. Selectors are A-Frame's own (a-modal / a-dialog / a-dialog-*); they
   are load-bearing, so don't rename them. Only visible on iOS Safari — there
   is no way to trigger it on desktop, so verify on a real device. */
.a-modal {
  background: rgba(5, 5, 5, 0.72) !important;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.a-dialog {
  width: min(88vw, 21rem) !important;
  height: auto !important;
  min-height: 0 !important;
  padding: 1.5rem 1.35rem 1.2rem !important;
  box-sizing: border-box !important;
  border-radius: 1.25rem !important;
  background-color: rgba(15, 15, 15, 0.92) !important;
  border: 1px solid var(--border-hover);
  color: var(--text);
  font-family: var(--sans) !important;
  box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
}

.a-dialog-text-container { height: auto !important; }

.a-dialog-text {
  font-family: var(--sans);
  font-size: 0.95rem !important;
  line-height: 1.5;
  color: var(--text);
  margin: 0 0 1.1rem !important;
}

.a-dialog-buttons-container {
  height: auto !important;
  gap: 0.6rem;
}

/* 2.75rem tall matches .hud-btn — the iOS 44px minimum touch target. */
.a-dialog-button {
  height: 2.75rem !important;
  border-radius: 999px !important;
  border: 1px solid var(--border) !important;
  font-family: var(--sans);
  font-size: 0.9rem !important;
  letter-spacing: 0.02em;
  margin: 0 !important;
  opacity: 1 !important;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
}

.a-dialog-button:active { transform: scale(0.96); }

/* Allow is the path to the actual experience, so it carries the ember
   accent; Deny stays quiet glass rather than an alarming red — declining
   just leaves you in the drag-to-look view, which is not an error. */
.a-dialog-allow-button,
.a-dialog-ok-button {
  background-color: var(--ember) !important;
  border-color: transparent !important;
  color: #0b0b0b !important;
  font-weight: 600;
}

.a-dialog-deny-button {
  background-color: rgba(245, 245, 240, 0.06) !important;
  color: var(--text) !important;
}

.a-dialog-permission-button:hover { box-shadow: none !important; }
.a-dialog-allow-button:hover,
.a-dialog-ok-button:hover { filter: brightness(1.08); }
.a-dialog-deny-button:hover { border-color: var(--border-hover) !important; }

@media (prefers-reduced-motion: reduce) {
  .a-dialog-button { transition: none; }
}

/* ─── Arrival gate (§9.7) ───
   A real modal: it takes pointer events (unlike the rest of the overlay, which
   is pass-through) and it is the first thing the visitor reads. Deliberately
   plain and text-forward — this is the one place on the site that is allowed to
   be a wall of words, because it is saying "what you are about to see is not
   the real thing" and that needs sentences, not a badge. */
.onboard-gate {
  position: fixed;
  inset: 0;
  z-index: 40; /* over the HUD, the back link and the canvas */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(5, 5, 5, 0.82);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  pointer-events: auto;
  transition: opacity 0.4s cubic-bezier(0.45, 0, 0.55, 1);
}

.onboard-gate.dismissed { opacity: 0; pointer-events: none; }

/* Held back for the frame or two navigator.xr.isSessionSupported() takes to
   answer. There are two different gates behind this — a flat-view disclaimer
   and a one-tap VR entry — and flashing the wrong one first is worse than a
   beat of nothing. onboarding.js clears this as soon as it knows. */
.onboard-gate.onboard-deciding { opacity: 0; pointer-events: none; }

/* ─── Headset gate ───
   In a headset the whole scrim is the tap target (onboarding.js), so the card
   here is a label for a target that is the entire screen, not a thing you have
   to hit. Hence: no body copy, centred, and a cursor that says so everywhere. */
.onboard-gate.onboard-headset { cursor: pointer; }

.onboard-gate.onboard-headset .onboard-card {
  max-width: 24rem;
  text-align: center;
}

.onboard-gate.onboard-headset .onboard-enter {
  margin-top: 1.1rem;
  font-size: 1.05rem;
}

/* The way out for someone in a headset who genuinely wants the flat window —
   a real escape, but quiet enough not to compete with entering. */
.onboard-secondary {
  display: block;
  margin: 0.9rem auto 0;
  padding: 0.35rem 0.5rem;
  border: 0;
  background: none;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  text-decoration: underline;
  text-underline-offset: 0.2em;
  cursor: pointer;
}

.onboard-secondary:hover { color: var(--text); }

.onboard-card {
  max-width: 34rem;
  max-height: 100%;
  overflow-y: auto;
  padding: 1.9rem 1.9rem 1.6rem;
  border-radius: 1.1rem;
  border: 1px solid var(--border);
  background: rgba(15, 15, 15, 0.9);
  font-family: var(--sans);
  color: var(--text);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.6);
}

.onboard-eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ember);
}

/* BETA pill in the arrival gate's eyebrow — same idea as the flat site's nav
   entry. Border in --ember at low alpha rather than the solid --ember of the
   eyebrow text it sits beside, so it labels the line without competing with
   it for the eye. */
.onboard-beta {
  margin-left: 0.6rem;
  padding: 0.15em 0.45em;
  border: 1px solid rgba(184, 134, 59, 0.55);
  border-radius: 3px;
  color: rgba(245, 245, 240, 0.6);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  vertical-align: 0.1em;
}

.onboard-title {
  margin: 0 0 0.9rem;
  font-family: var(--serif, var(--sans));
  font-size: 1.65rem;
  line-height: 1.15;
  font-weight: 500;
}

.onboard-card p {
  margin: 0 0 0.85rem;
  font-size: 0.92rem;
  line-height: 1.55;
}

.onboard-card .onboard-quiet { color: var(--muted); }

/* The motion paragraph is the one the visitor must actually act on, so it gets
   a left rule and its own ground rather than sitting in the flow as one more
   block of body copy. */
.onboard-motion {
  padding: 0.75rem 0.9rem;
  border-left: 2px solid var(--ember);
  border-radius: 0 0.5rem 0.5rem 0;
  background: rgba(184, 134, 59, 0.10);
}

.onboard-enter {
  margin-top: 0.5rem;
  width: 100%;
  min-height: 3rem;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--border-hover);
  background: var(--ember, #b8863b);
  color: #0d0d0d;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: filter 0.2s ease, transform 0.15s ease;
}

.onboard-enter:hover { filter: brightness(1.08); }
.onboard-enter:active { transform: scale(0.985); }

.onboard-status {
  margin: 0.7rem 0 0;
  min-height: 1.2em;
  font-size: 0.85rem;
  color: var(--muted);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.onboard-status.shown { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  .onboard-gate, .onboard-enter, .onboard-status { transition: none; }
}

/* ─── Movement controls (bottom-left) ───
   The mirror of .hud-controls on the right: turning/looking lives there,
   moving lives here. On a fine pointer the joystick is hidden (WASD does the
   job) and this block collapses to the recenter pill alone. */
.move-controls {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
}

.joystick {
  display: none; /* touch only — see the coarse-pointer block at the end */
  position: relative;
  /* 5.75rem (92px) rather than the first pass's 6.5rem: at 6.5 the pad's top
     edge reached into the onboarding hint on a 375px phone (measured 2884 px²
     of overlap). Still a comfortable thumb target — well past the 44px minimum
     — and it buys the hint room to sit clear above it. */
  width: 5.75rem;
  height: 5.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(12, 12, 12, 0.5);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  /* The pad is a drag surface: without this, dragging on it scrolls//zooms the
     page on iOS instead of moving the thumb, and the browser's own gesture
     wins over ours. */
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

.joystick.active { border-color: var(--border-hover); background: rgba(12, 12, 12, 0.68); }

.joystick-thumb {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2.6rem;
  height: 2.6rem;
  margin: -1.3rem 0 0 -1.3rem;
  border-radius: 999px;
  background: rgba(245, 245, 240, 0.82);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
  pointer-events: none; /* the PAD handles the pointer, not the thumb */
  transition: transform 0.12s ease-out;
}

.joystick.active .joystick-thumb { transition: none; } /* follow the finger 1:1 */

@media (prefers-reduced-motion: reduce) {
  .joystick-thumb { transition: none; }
}

/* ═══ Touch-pointer overrides — MUST stay at the end of this file ═══
   A media query adds no specificity, so these rules only win by coming after
   the base ones. The first attempt sat next to .hud-btn, which is ABOVE
   .onboard-hint's own `bottom: 1.4rem` — so the hint never moved and the
   enlarged control row kept sitting on top of it. Anything added here that
   overrides an earlier selector has the same constraint. */

/* ─── Touch: the controls are the ONLY way to look around, so size them like it ───
   On a phone these buttons were 2.75rem at rgba(15,15,15,0.55) with a 1.05rem
   glyph — the bare iOS 44px minimum, and the thin ‹ › guillemets read as faint
   scratches against a bright dusk sky (Sebastian: "just too small/opaque").
   Desktop keeps the small, unobtrusive size: there the buttons are a fallback,
   because looking around is the mouse's job (§9.5).

   Sized and contrasted, not just scaled: 3.4rem targets, a near-opaque fill so
   the glyph always has a dark ground under it whatever the sky is doing behind,
   a brighter border, a heavier/larger glyph, and a drop shadow to lift the whole
   pill off the scene. */
@media (hover: none) and (pointer: coarse) {
  .hud-controls {
    gap: 0.7rem;
    right: 1rem;
    /* Lifted clear of the onboarding hint, which is centred at the very bottom
       of the frame and collided with this row on a 375px-wide phone. */
    bottom: 1.15rem;
  }

  .hud-btn {
    width: 3.4rem;
    height: 3.4rem;
    font-size: 1.5rem;
    font-weight: 500;
    background: rgba(12, 12, 12, 0.82);
    border-color: var(--border-hover);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
  }

  .hud-btn.recenter-btn { font-size: 1.7rem; }

  /* The joystick is the phone's movement control, so it appears here and only
     here. Sized for a thumb resting at the bottom-left corner of the frame. */
  .joystick { display: block; }
  .move-controls { bottom: 1.15rem; left: 1rem; }

  /* No hover state on touch — :hover sticks after a tap on iOS, leaving one
     button permanently lit. The :active press feedback below is the real
     affordance. */
  .hud-btn:hover { background: rgba(12, 12, 12, 0.82); border-color: var(--border-hover); }
  .hud-btn:active { background: rgba(30, 30, 30, 0.9); }
}

/* The hint sits at the very bottom centre; on a narrow phone the wider control
   row above reaches into it. Lift the hint rather than shrinking the controls —
   it's transient copy that fades on the first interaction, and the controls are
   permanent. */
@media (orientation: portrait) and (hover: none) and (pointer: coarse) {
  /* Above BOTH bottom clusters: the joystick is the tall one (92px at a 1.15rem
     inset reaches y=702 on an 812px-tall phone), so 8.5rem puts the hint's
     bottom edge at y=676 — clear by 26px. Landscape leaves the hint at the very
     bottom, where the joystick is off to one side and never meets it. */
  .onboard-hint { bottom: 8.5rem; }
}