/* ============================================================
   JETS — core UI / HUD / overlay styling
   Retro-vibrant Zaxxon look. Font: Press Start 2P.
   ============================================================ */

:root {
  --c-bg:      #0b0b2e;
  --c-bg2:     #241a5c;
  --c-yellow:  #ffd23f;
  --c-green:   #5dff5d;
  --c-red:     #ff3b3b;
  --c-blue:    #49b6ff;
  --c-cyan:    #6fe9ff;
  --c-panel:   rgba(8, 8, 30, 0.86);
  --c-line:    #2f7fe0;
  --shadow-hard: 3px 3px 0 #000;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  font-family: 'Press Start 2P', 'Courier New', monospace;
  color: #fff;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
}

#scene-root {
  position: fixed;
  inset: 0;
  z-index: 0;
}
#scene-root canvas { display: block; width: 100%; height: 100%; }

/* ---------- Overlays (menu / help / pause / gameover / loading) ---------- */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at 50% 30%, rgba(73,182,255,0.10), transparent 60%),
    linear-gradient(160deg, var(--c-bg) 0%, #05051a 55%, #120833 100%);
}
.overlay.hidden { display: none; }
/* Generic hide — used by show()/hide() for non-overlay elements too (the menu
   Start button and sector list swap via this). !important so it wins over an
   element's own display (e.g. .btn { display:block }) regardless of order. */
.hidden { display: none !important; }

/* animated scanline + star sheen on overlays */
.overlay::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 12% 22%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 78% 14%, #cfe 50%, transparent 51%),
    radial-gradient(1px 1px at 35% 72%, #9bf 50%, transparent 51%),
    radial-gradient(2px 2px at 62% 58%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 88% 80%, #fdf 50%, transparent 51%),
    radial-gradient(1px 1px at 22% 88%, #fff 50%, transparent 51%);
  opacity: 0.5;
  animation: twinkle 4s steps(2) infinite;
}
@keyframes twinkle { 50% { opacity: 0.2; } }

.panel {
  position: relative;
  z-index: 1;
  width: min(500px, 92vw);
  background: var(--c-panel);
  border: 3px solid var(--c-line);
  box-shadow: 0 0 0 3px #000, 0 0 40px rgba(47,127,224,0.5), 8px 8px 0 rgba(0,0,0,0.6);
  padding: 32px 26px;
  text-align: center;
  border-radius: 6px;
}
.panel-wide { width: min(720px, 94vw); }

/* ---------- Title ---------- */
.title {
  font-size: clamp(44px, 11vw, 90px);
  line-height: 1;
  letter-spacing: 4px;
  color: #fff;
  text-shadow: 0 0 8px var(--c-cyan), 4px 4px 0 #000, 0 0 30px var(--c-blue);
  margin-bottom: 10px;
}
.title .t-accent { color: var(--c-red); text-shadow: 0 0 10px var(--c-red), 4px 4px 0 #000; }
.subtitle {
  font-size: 11px;
  line-height: 1rem;
  color: var(--c-yellow);
  letter-spacing: 2px;
  margin: 26px 0;
  text-shadow: 2px 2px 0 #000;
  word-wrap: break-word;
}
.panel-title {
  font-size: clamp(20px, 5vw, 30px);
  color: var(--c-yellow);
  text-shadow: var(--shadow-hard), 0 0 16px rgba(255,210,63,0.6);
  margin-bottom: 22px;
  letter-spacing: 2px;
}

/* ---------- Buttons ---------- */
.btn {
  display: block;
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  padding: 16px 18px;
  margin: 10px 0;
  border: 2px solid var(--c-green);
  background: #0a0a1e;
  color: var(--c-green);
  cursor: pointer;
  letter-spacing: 1px;
  transition: transform .06s, background .12s, color .12s, box-shadow .12s;
  text-shadow: 1px 1px 0 #000;
}
.btn:hover, .btn:focus-visible {
  background: var(--c-green);
  color: #04130a;
  text-shadow: none;
  box-shadow: 0 0 18px rgba(93,255,93,0.6);
  outline: none;
}
.btn:active { transform: translateY(2px) scale(0.99); }

.btn-primary {
  border-color: var(--c-yellow);
  color: var(--c-yellow);
  font-size: 18px;
  box-shadow: 0 0 14px rgba(255,210,63,0.35);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--c-yellow);
  color: #1a1400;
  box-shadow: 0 0 24px rgba(255,210,63,0.7);
}

.btn-toggle { font-size: 13px; border-color: var(--c-blue); color: var(--c-blue); }
.btn-toggle:hover { background: var(--c-blue); color: #03101f; }
.btn-toggle[data-on="false"] { border-color: #555; color: #888; opacity: .85; }
.btn-toggle[data-on="false"]:hover { background: #555; color: #000; box-shadow: none; }

.btn-ghost { border-color: transparent; color: #9fb4d8; font-size: 12px; box-shadow: none; }
.btn-ghost:hover { background: transparent; color: #fff; box-shadow: none; text-shadow: 0 0 10px var(--c-cyan); }

/* Sector picker — shown on the menu once a second sector is unlocked. */
.sector-list { margin: 6px 0 4px; }
.sector-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  line-height: 1rem;
  border-color: var(--c-yellow);
  color: var(--c-yellow);
  box-shadow: 0 0 14px rgba(255,210,63,0.30);
}
.sector-btn:hover, .sector-btn:focus-visible {
  background: var(--c-yellow);
  color: #1a1400;
  box-shadow: 0 0 24px rgba(255,210,63,0.7);
}
.sector-btn .sector-name { letter-spacing: 1px; }
.sector-btn .sector-hi { font-size: 11px; color: var(--c-cyan); white-space: nowrap; }
.sector-btn:hover .sector-hi { color: #06212b; }
.sector-btn.sector-locked {
  border-color: #555;
  color: #7a7a90;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.8;
}
.sector-btn.sector-locked:hover { background: #0a0a1e; color: #7a7a90; box-shadow: none; }
.sector-btn.sector-locked .sector-hi { color: #7a7a90; }
/* Debug dialog: one gallery button per sector. */
#debug-levels { margin-bottom: 6px; }

.options { margin: 20px 0 8px; }
.best-line { font-size: 10px; color: #9fb4d8; margin-top: 16px; letter-spacing: 1px; }
.best-line span { color: var(--c-cyan); }
/* Highlighted high-score readout on the menu */
.hi-line {
  font-size: 12px;
  color: var(--c-yellow);
  letter-spacing: 2px;
  margin-top: 20px;
  text-shadow: 2px 2px 0 #000, 0 0 14px rgba(255,210,63,0.55);
}
.hi-line span {
  display: inline-block;
  margin-left: 12px;
  font-size: 20px;
  color: #fff;
  text-shadow: 2px 2px 0 #000, 0 0 12px var(--c-cyan);
}
.hint { font-size: 8.5px; color: #6677aa; margin-top: 10px; line-height: 1.6; }
a:link, a:visited {color: #FFF; text-decoration: underline;}
a:hover {text-decoration: none;}

/* Gamepad focus ring — shown ONLY when the controller is the active device. */
body.gamepad-active .gp-focus {
  outline: 3px solid var(--c-cyan);
  outline-offset: 3px;
  box-shadow: 0 0 0 3px #000, 0 0 22px rgba(111,233,255,0.85);
  position: relative;
  z-index: 1;
}

/* ---------- Help panel ---------- */
.brief { font-size: 11px; line-height: 1.9; color: #cdd8ef; margin-bottom: 22px; }
.controls-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; text-align: left; }
.ctrl-col h3 { font-size: 12px; color: var(--c-cyan); margin-bottom: 12px; text-shadow: 1px 1px 0 #000; }
.ctrl-col ul { list-style: none; }
.ctrl-col li { font-size: 9px; line-height: 2.1; color: #cdd8ef; }
.ctrl-col li b { color: var(--c-yellow); }
.tip { font-size: 9.5px; color: var(--c-green); margin: 22px 0; line-height: 1.8; }
@media (max-width: 560px) {
  .controls-grid { grid-template-columns: 1fr; gap: 10px; }
}

.go-stats { font-size: 11px; line-height: 2; color: var(--c-cyan); margin-bottom: 20px; }
.go-stats .new-hi {
  color: var(--c-yellow);
  text-shadow: 0 0 10px rgba(255,210,63,0.8);
  animation: hiPulse 0.5s steps(2) infinite;
}
@keyframes hiPulse { 50% { opacity: 0.45; } }
.loading-pulse { animation: pulse 1s steps(2) infinite; }
@keyframes pulse { 50% { opacity: .3; } }

/* ============================================================
   HUD
   ============================================================ */
#hud {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  display: none;
  padding: 14px 18px;
}
body.state-playing #hud,
body.state-paused #hud { display: block; }

.hud-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.hud-block { display: flex; flex-direction: column; gap: 6px; }
.hud-center { align-items: center; flex: 1; }
.hud-right { align-items: flex-end; }
.hud-label { font-size: 9px; color: var(--c-blue); letter-spacing: 2px; text-shadow: 1px 1px 0 #000; }
.hud-big { font-size: 26px; color: #fff; text-shadow: var(--shadow-hard), 0 0 12px var(--c-cyan); }
.hud-mid { font-size: 18px; color: var(--c-yellow); text-shadow: 2px 2px 0 #000; }

.icon-row { display: flex; gap: 6px; }
.life-icon, .bomb-icon {
  width: 22px; height: 22px;
  image-rendering: pixelated;
}
.life-icon { filter: drop-shadow(1px 1px 0 #000); }
.life-icon.lost { opacity: 0.18; filter: grayscale(1); }
.bomb-icon.used { opacity: 0.18; }

#hud-progress {
  width: 180px; max-width: 40vw; height: 8px;
  background: #11112e; border: 2px solid #2f7fe0; margin-top: 6px;
}
#hud-progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--c-green), var(--c-yellow));
  transition: width .2s linear;
}

#hud-message {
  position: absolute;
  top: 38%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  font-size: clamp(18px, 5vw, 34px);
  color: var(--c-yellow);
  text-shadow: var(--shadow-hard), 0 0 18px rgba(255,210,63,0.8);
  opacity: 0;
  transition: opacity .25s;
  letter-spacing: 2px;
}
#hud-message.show { opacity: 1; }
#hud-message.danger { color: var(--c-red); text-shadow: var(--shadow-hard), 0 0 18px rgba(255,59,59,0.9); }

.hud-pad-hint {
  position: absolute;
  bottom: 14px; left: 50%;
  transform: translateX(-50%);
  font-size: 9px;
  color: var(--c-green);
  background: rgba(0,0,0,0.5);
  padding: 6px 12px;
  border: 1px solid var(--c-green);
  opacity: 0;
  transition: opacity .3s;
}
.hud-pad-hint.show { opacity: 1; }

/* red damage flash */
#damage-flash {
  position: fixed; inset: 0; z-index: 60; pointer-events: none;
  background: radial-gradient(circle, transparent 40%, rgba(255,40,40,0.55) 100%);
  opacity: 0;
}
#damage-flash.flash { animation: dmg .4s ease-out; }
@keyframes dmg { 0% { opacity: 1; } 100% { opacity: 0; } }

/* bomb white flash */
#bomb-flash {
  position: fixed; inset: 0; z-index: 61; pointer-events: none;
  background: #fff; opacity: 0;
}
#bomb-flash.flash { animation: bmb .45s ease-out; }
@keyframes bmb { 0% { opacity: .85; } 100% { opacity: 0; } }

/* ---------- body state visibility helpers ---------- */
body.state-menu    #hud,
body.state-menu    #touch-ui { display: none; }

/* ============================================================
   Debug asset gallery
   ============================================================ */
#gallery-ui {
  position: fixed;
  top: 0; right: 0;
  width: min(340px, 92vw);
  height: 100%;
  z-index: 120;
  background: rgba(6, 6, 22, 0.92);
  border-left: 3px solid var(--c-line);
  box-shadow: -6px 0 30px rgba(0,0,0,0.6);
  padding: 14px 14px calc(20px + env(safe-area-inset-bottom));
  overflow-y: auto;
  pointer-events: auto;
}
#gallery-ui.hidden { display: none; }

.gx-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.gx-title { font-size: 13px; color: var(--c-yellow); text-shadow: 2px 2px 0 #000; letter-spacing: 1px; }
.gx-back {
  font-family: inherit; font-size: 10px; color: var(--c-red);
  background: #1a0a14; border: 2px solid var(--c-red); padding: 6px 10px; cursor: pointer;
}
.gx-back:hover { background: var(--c-red); color: #000; }
.gx-hint { font-size: 8px; line-height: 1.7; color: #8ea3cc; margin-bottom: 12px; }

.gx-section { margin-bottom: 16px; }
.gx-section h4 { font-size: 10px; color: var(--c-cyan); margin-bottom: 8px; letter-spacing: 1px; border-bottom: 1px solid #2a2a55; padding-bottom: 5px; }
.gx-btn-row { display: flex; gap: 6px; margin-bottom: 6px; }
.gx-btn {
  flex: 1; font-family: inherit; font-size: 9px; color: var(--c-green);
  background: #0a0a1e; border: 2px solid var(--c-green); padding: 9px 4px; cursor: pointer;
  transition: background .1s, color .1s;
}
.gx-btn:hover { background: var(--c-green); color: #04130a; }
.gx-btn:active { transform: translateY(1px); }

.gx-group-title { font-size: 9px; color: var(--c-blue); margin: 10px 0 4px; letter-spacing: 1px; }
.gx-color-row {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 9px; color: #cdd8ef; padding: 3px 0;
}
.gx-color-row input[type="color"] {
  width: 38px; height: 22px; border: 1px solid #000; background: none; cursor: pointer; padding: 0;
}