/* PHANTOM ZONE EVOLVED v2 */
:root{
  /* Safe-area + layout */
  --padT: max(14px, env(safe-area-inset-top));
  --padR: max(14px, env(safe-area-inset-right));
  --padB: max(14px, env(safe-area-inset-bottom));

  /* Pane sizing (JS updates --pane-w/--pane-h) */
  --pane-w: 60vmin;
  --pane-h: calc(var(--pane-w) / 1.5);
  --pane-max-w: min(82vmin, 900px);
  --pane-max-h: min(70vmin, 720px);

  /* HUD↔Gear alignment (JS updates --hud-height) */
  --hud-height: 0px;
  --hud-gap: 10px;

  /* Gallery */
  --gallery-w: clamp(200px, 30vw, 300px);
  --gallery-gap: 8px;
  --gallery-z: 7;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: #000;
  color: #e7ecff;
  font: 400 16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  overflow: hidden;
}

#stars { position: fixed; inset: 0; display:block; z-index: 0; }

.title, .credit {
  position: fixed; width: 100%; text-align: center; letter-spacing: .04em;
  text-shadow: 0 2px 14px rgba(0,0,0,.65); z-index: 3;
}
.title { top: var(--padT); font-size: clamp(20px,3.6vmin,44px); font-weight: 700; }
.credit { bottom: var(--padB); font-size: 12px; opacity: .85; z-index: 3; }

.zone { position: fixed; inset: 0; display: grid; place-items: center; perspective: 1200px; z-index: 2; }

.wrapper {
  will-change: transform;
  transform-origin: 50% 50%;
  user-select: none;
  cursor: grab;
}
.wrapper.dragging { cursor: grabbing; }

.pane {
  position: relative;
  width: var(--pane-w); height: var(--pane-h);
  transform-origin: 50% 50%;
  /* border: 1.5px solid rgba(255,255,255,.85); */
  border-top: 1px solid rgba(255,255,255,.85);
  border-right: 1px solid rgba(255,255,255,.85);
  border-bottom: 1px solid rgba(255,255,255,.85);
  border-left: 1px solid rgba(255,255,255,.85);
  box-shadow:
    inset 0 0 22px rgba(255,255,255,.15),
    inset 0 0 2px rgba(255,255,255,.9),
    0 20px 40px rgba(0,0,0,.55);
  overflow: hidden;

  /* gestures */
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  overscroll-behavior: contain;
}
/* glass sheen overlay */
.pane::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(100% 120% at 10% 10%, rgba(255,255,255,.25), transparent 45%),
    linear-gradient(105deg,
      rgba(255,255,255,0.28) 0%,
      rgba(255,255,255,0.12) 24%,
      rgba(255,255,255,0.0) 50%,
      rgba(0,150,255,0.08) 64%,
      rgba(255,255,255,0.2) 100%);
  z-index: 1;
}

/* media layer (image or video) */
.media,
.media > img,
.media > video{
  position:absolute; inset:0; width:100%; height:100%;
  display:block; object-fit:cover;
}
.media{ z-index: 0; pointer-events:none; }

/* HUD */
.hud{
  position: fixed; left: 14px; bottom: var(--padB);
  display:flex; gap:14px; align-items:center; flex-wrap: wrap;
  padding:10px 12px;
  background: rgba(10,14,24,.56); border:1px solid rgba(255,255,255,.18);
  border-radius:12px; backdrop-filter: blur(6px); z-index: 4;
  transition: opacity .25s ease;
  max-width: calc(100vw - 14px - 14px - 52px - var(--hud-gap)); /* leave room for gear */
}
.hud.hide { opacity: 0; pointer-events: none; }
.hud label { display:flex; align-items:center; gap:8px; font-size:12px; opacity:.95; }
.hud input[type="range"] { width: 120px; }
.hud .val { min-width: 60px; text-align: right; font-variant-numeric: tabular-nums; opacity: .95; }
.hud .file { padding:6px 10px; border:1px solid rgba(255,255,255,.25); border-radius:8px; cursor:pointer; }
.hud .file input { display:none; }
.hud button {
  padding: 6px 10px; border: 1px solid rgba(255,255,255,.25);
  border-radius: 8px; background: rgba(255,255,255,.06); color: #e7ecff; cursor: pointer;
}
.hud button:active { transform: translateY(1px); }

@media (max-width:700px){
  .hud{ left:50%; transform: translateX(-50%); bottom: var(--padB); gap:10px; flex-wrap: wrap; max-width: calc(100vw - 28px); }
  .hud input[type="range"]{ width:90px; }
  .hud .val { min-width: 48px; }
}

/* Gear: bottom-right; lift up when HUD shown */
.gear{
  position: fixed; right: 14px; bottom: var(--padB);
  width: 52px; height: 52px; border-radius: 12px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(15,18,28,.55); color:#e7ecff; font-size: 22px;
  backdrop-filter: blur(6px); cursor:pointer; z-index: 6;
  transition: bottom .2s ease;
}
body.hud-open .gear{
  bottom: calc(var(--padB) + var(--hud-height) + var(--hud-gap));
}

/* 🎆 Gallery toggle (top-right) */
.gallery-toggle{
  position: fixed; top: var(--padT); right: var(--padR);
  z-index: var(--gallery-z);
  width: 44px; height: 44px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(15,18,28,.55); color: #e7ecff; font-size: 20px; line-height: 1;
  backdrop-filter: blur(6px); cursor: pointer;
}

/* Gallery tray */
.gallery{
  position: fixed; top: calc(var(--padT) + 52px); right: var(--padR);
  z-index: var(--gallery-z); width: var(--gallery-w);
  max-height: min(60vh, 520px); padding: 10px;
  border-radius: 12px; border: 1px solid rgba(255,255,255,.22);
  background: rgba(10,14,24,.60); backdrop-filter: blur(6px);
  box-shadow: 0 10px 30px rgba(0,0,0,.45); overflow: auto;
}
.gallery.hide{ display:none; }
.gallery-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:8px; font-size:13px; opacity:.95; }
.gallery-head #galleryClose{
  width: 28px; height: 28px; border-radius: 6px; cursor:pointer;
  border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.06); color:#e7ecff;
}
.thumbs{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gallery-gap);
}
@media (max-width:560px){ .thumbs{ grid-template-columns: repeat(4, 1fr); } }
.thumbs button{
  position: relative; display:block; width:100%; aspect-ratio:1/1;
  border-radius: 8px; overflow:hidden; padding:0; cursor:pointer;
  border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.05);
}
.thumbs button img,
.thumbs button video{ width:100%; height:100%; object-fit:cover; display:block; }
.thumbs button video{ pointer-events:none; }
.thumbs button.active{ outline: 2px solid #9dc1ff; outline-offset: 2px; }

/* Grouped box inside HUD */
.hud-group{
  display: flex;
  display: block;
  width: 100%;
  flex-direction: column;
  gap: 10px;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 10px;
  padding: 10px 12px;
  background: rgba(255,255,255,.04);
  min-width: min(100%, 560px);
}

.hud-group > legend{
  padding: 0 6px;
  font-size: 12px;
  letter-spacing: .02em;
  opacity: .9;
}

.hud-group .row{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

/* Keep buttons tidy & consistent */
.hud-group button,
.hud-group .file{
  height: 32px;
  line-height: 30px;
  padding: 0 10px;
  border-radius: 8px;
}

/* Small screens: let the row stack nicely */
@media (max-width: 700px){
  .hud-group{ min-width: unset; }
  .hud-group .row{ gap: 10px; }
  .hud-group button,
  .hud-group .file{ flex: 1 1 auto; }
}

/* Stop long-press selection/callout inside the app UI */
.zone, .wrapper, .pane, .hud, .gallery, .gear, .gallery-toggle,
.hud button, .hud label, .thumbs button {
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;   /* no copy/save callout */
  -webkit-tap-highlight-color: transparent; /* no gray tap flash */
}
.hud button, .hud label, .thumbs button {
  background: rgba(255, 255, 255, 0.142);
  padding: 0.25rem 0.5rem;
  border-radius: 0.5rem;
}
/* Media shouldn’t be draggable/selectable either */
.media img, .media video,
.thumbs button img, .thumbs button video {
  -webkit-user-drag: none;
  user-drag: none;
}