/* Central-theme-driven skin. Portal sets --startng-primary / --startng-accent;
   game mirrors them to --game-primary / --game-accent for UI + 3D suit. */
:root {
  --startng-primary: #7b61ff;
  --startng-accent: #00e5ff;
  --startng-bg: #0b1020;
  --game-primary: var(--startng-primary);
  --game-accent: var(--startng-accent);
  --panel: rgba(10, 14, 30, 0.82);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; overflow: hidden; background: var(--startng-bg);
  font-family: system-ui, Segoe UI, Roboto, sans-serif; color: #fff; }
#app { position: fixed; inset: 0; }
#game { position: absolute; inset: 0; }
#game canvas { display: block; }
.hidden { display: none !important; }

#vignette { position: absolute; inset: 0; pointer-events: none; z-index: 4; opacity: 0; transition: opacity .15s; }
#vignette.hit-red { opacity: 1; background: radial-gradient(ellipse at center, transparent 55%, rgba(255,30,30,.55) 100%); }
#vignette.hit-gold { opacity: 1; background: radial-gradient(ellipse at center, transparent 60%, rgba(255,213,74,.45) 100%); }
#speedlines { position: absolute; inset: 0; pointer-events: none; z-index: 4; opacity: 0; transition: opacity .3s;
  background: repeating-linear-gradient(90deg, transparent 0 46px, rgba(255,255,255,.14) 46px 48px); }
#speedlines.on { opacity: 1; animation: rush .3s linear infinite; }
@keyframes rush { to { transform: scaleX(1.06); } }
#floaters { position: absolute; inset: 0; pointer-events: none; z-index: 6; overflow: hidden; }
.floater { position: absolute; top: 38%; font-weight: 800; font-size: 22px; text-shadow: 0 2px 12px #000;
  animation: floatup 1.1s ease-out forwards; }
@keyframes floatup { to { transform: translateY(-70px); opacity: 0; } }

#topbar { position: absolute; top: 0; left: 0; right: 0; display: flex; gap: 10px;
  align-items: center; padding: 10px 14px; z-index: 5; flex-wrap: wrap;
  background: linear-gradient(180deg, rgba(0,0,0,.55), transparent); }
#brand b { letter-spacing: 2px; color: var(--game-accent); }
.on-startng { font-size: 12px; opacity: .7; border: 1px solid var(--game-primary);
  padding: 1px 8px; border-radius: 20px; margin-left: 6px; }
#progress-wrap { position: relative; width: 170px; height: 18px; background: rgba(255,255,255,.12);
  border-radius: 10px; overflow: hidden; font-size: 11px; }
#progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--game-primary), var(--game-accent)); transition: width .3s; }
#progress-txt { position: absolute; inset: 0; display: grid; place-items: center; font-weight: 700; }
#user-chip { margin-left: auto; display: flex; align-items: center; gap: 8px;
  background: var(--panel); border: 1px solid var(--game-primary);
  padding: 5px 12px 5px 6px; border-radius: 30px; font-weight: 600; }
#user-chip img { width: 26px; height: 26px; border-radius: 50%; background: #222; }
#user-chip.guest { opacity: .75; border-style: dashed; }
#top-actions { display: flex; gap: 6px; }
#top-actions button, #pause-btn { background: var(--panel); color: #fff;
  border: 1px solid var(--game-accent); border-radius: 10px; padding: 7px 10px;
  cursor: pointer; font-weight: 600; }
#top-actions button:hover { background: var(--game-primary); }

#hud { position: absolute; top: 58px; left: 12px; display: flex; gap: 8px; z-index: 5; align-items: center; flex-wrap: wrap; }
.stat { background: var(--panel); border: 1px solid #2a3350; padding: 6px 12px;
  border-radius: 10px; font-size: 13px; letter-spacing: 1px; backdrop-filter: blur(6px); }
.stat b, #stars { color: var(--game-accent); font-size: 16px; }
#boost-tag { border-color: var(--game-accent); color: var(--game-accent);
  animation: blink .5s infinite alternate; }
@keyframes blink { to { background: var(--game-accent); color: #000; } }
.pop { animation: pop .3s; } @keyframes pop { 50% { transform: scale(1.4); } }
.combo { border-color: #ffd54a; color: #ffd54a; font-weight: 800; }
#boost-meter { width: 90px; height: 10px; background: rgba(255,255,255,.12); border-radius: 6px; overflow: hidden; }
#boost-fill { height: 100%; width: 0%; background: var(--game-accent); transition: width .2s; }

#touch { position: absolute; bottom: 18px; left: 0; right: 0; display: flex;
  justify-content: space-between; padding: 0 18px; z-index: 5; pointer-events: none; gap: 8px; }
#touch button { pointer-events: auto; min-width: 56px; min-height: 56px; width: 64px; height: 64px; border-radius: 50%;
  font-size: 22px; border: 2px solid var(--game-accent); background: var(--panel);
  color: #fff; }
#boost-btn { font-size: 12px !important; font-weight: 800; }
@media (min-width: 800px) { #touch { display: none; } }
/* T8: visible focus rings + reduced motion */
button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--game-accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  #speedlines.on { opacity: 0; }
}
#theme-sync { position: absolute; top: 110px; left: 50%; transform: translateX(-50%);
  background: var(--game-accent); color: #000; padding: 6px 14px; border-radius: 16px;
  font-weight: 700; opacity: 0; transition: .3s; z-index: 20; pointer-events: none; }
#theme-sync.show { opacity: 1; }
#user-chip.initial::before { content: attr(data-initial); display: grid; place-items: center;
  width: 26px; height: 26px; border-radius: 50%; background: var(--game-primary); font-weight: 800; }

#gate, #over { position: absolute; inset: 0; display: none; place-items: center;
  background: rgba(4, 6, 16, 0.55); backdrop-filter: blur(3px); z-index: 10; }
#gate.show, #over:not(.hidden) { display: grid; }
.gate-card { background: var(--panel); border: 1px solid var(--game-primary);
  border-radius: 18px; padding: 24px 20px; text-align: center; max-width: 440px;
  width: calc(100% - 32px); box-shadow: 0 0 60px -10px var(--game-primary);
  max-height: 88vh; overflow-y: auto; overflow-x: hidden; }
.gate-card h1 { margin: 0 0 6px; }
#gate-sub { opacity: .85; }
.hint { font-size: 13px; opacity: .75; } .dbl { opacity: .6; }
#swatches { display: flex; gap: 8px; justify-content: center; margin: 10px 0; }
.swatch { display: flex; border: 2px solid transparent; border-radius: 10px; overflow: hidden;
  cursor: pointer; padding: 0; background: none; }
.swatch span { width: 26px; height: 26px; display: block; }
.swatch.active { border-color: #fff; }
#missions { margin-top: 14px; text-align: left; font-size: 13px; background: #0d1330;
  border-radius: 10px; padding: 10px 12px; }
.mission { padding: 2px 0; opacity: .85; } .mission.done { color: #7CFC00; }
.mission i { opacity: .6; font-style: normal; }
.rank { font-size: 20px; font-weight: 800; color: var(--game-accent); letter-spacing: 2px; }
#stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 12px 0; }
#stats-grid div { background: #0d1330; border-radius: 10px; padding: 8px; font-size: 12px; }
#stats-grid b { display: block; font-size: 18px; color: var(--game-accent); }
.overlay { position: absolute; inset: 0; display: grid; place-items: center;
  background: rgba(4,6,16,.6); z-index: 15; }
.overlay.hidden { display: none; }
#settings-drawer label { display: block; margin: 8px 0; }
.brow { display: flex; justify-content: space-between; padding: 6px 10px;
  background: #0d1330; border-radius: 8px; margin: 4px 0; }
.brow.me { border: 1px solid var(--game-accent); }
.row { display: flex; gap: 8px; justify-content: center; margin-top: 14px; flex-wrap: wrap; }
.over-actions button { flex: 1 1 90px; min-width: 0; white-space: nowrap; }
#again-btn { flex: 2 1 150px; }
.over-auth button { flex: 1 1 120px; }
#guest-cta { margin-top: 10px; font-size: 13px; background: #0d1330;
  border: 1px dashed var(--game-accent); border-radius: 10px; padding: 8px 10px; }
button { font-family: inherit; min-width: 0; }
.primary { background: var(--game-primary); color: #fff; border: none;
  padding: 10px 18px; border-radius: 12px; cursor: pointer; font-weight: 700; }
.primary.big { font-size: 17px; padding: 12px 20px; }
#guest-btn, #menu-btn, #how-btn, #demo-toggle, #share-btn, #startng-signup-btn, #over-signup-btn {
  background: transparent; color: #fff; border: 1px solid #3a4568;
  border-radius: 12px; padding: 10px 14px; cursor: pointer; }
#share-btn { background: #fff; color: #111; border-color: #fff; font-weight: 700; }
#login-row { display: flex; gap: 8px; justify-content: center; margin-top: 12px; flex-wrap: wrap; }
#demo-row { display: flex; gap: 8px; justify-content: center; margin-top: 10px; }
#demo-name { padding: 10px; border-radius: 10px; border: 1px solid #3a4568;
  background: #0d1330; color: #fff; width: 180px; }
#how { margin-top: 12px; font-size: 13px; background: #0d1330; padding: 10px; border-radius: 10px; }
.final span { font-size: 52px; font-weight: 800; color: var(--game-accent); }
.final small { display: block; opacity: .8; margin-bottom: 6px; }
#newbest { color: #ffd54a; font-weight: 800; animation: pop .5s infinite alternate; }
#toast { position: absolute; top: 110px; left: 50%; transform: translateX(-50%) translateY(-8px);
  background: var(--game-primary); padding: 8px 18px; border-radius: 20px; opacity: 0;
  transition: .25s; z-index: 20; font-weight: 700; pointer-events: none; }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }