:root {
  --bg-deep: #0f1315;
  --bg-panel: #191f22;
  --bg-panel-2: #1f2629;
  --line: #2c3538;
  --accent: #ff8c42;
  --accent-dim: #c9692c;
  --teal: #3fa9a4;
  --text: #ece7da;
  --text-dim: #8b9296;
  --danger: #ff5c5c;
  --gold: #ffd23f;
  --font-display: 'Oswald', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  background: var(--bg-deep);
  color: var(--text);
  font-family: var(--font-mono);
  overflow: hidden;
  -webkit-user-select: none; user-select: none;
  touch-action: none;
  overscroll-behavior: none;
}
#app {
  position: relative;
  width: 100vw; height: 100vh; height: 100dvh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-deep);
}

/* ---------- Scope-glass vignette / scanline over the canvas background ---------- */
#glass {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at center, rgba(255,255,255,.03) 0%, rgba(0,0,0,0) 45%),
    radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,.55) 100%);
}
#scanline {
  position: absolute; inset: 0; pointer-events: none; opacity: .05;
  background: repeating-linear-gradient(0deg, #fff 0px, transparent 1px, transparent 3px);
  mix-blend-mode: overlay;
}

canvas { position: absolute; inset: 0; display: block; cursor: none; }

/* ---------- Mil-dot tick frame (signature element) ---------- */
#frame { position: absolute; inset: 0; pointer-events: none; }
.tick-row { position: absolute; display: flex; }
.tick { background: var(--text-dim); opacity: .35; }
.tick.major { background: var(--accent); opacity: .6; }

/* ---------- HUD ---------- */
.hud { position: absolute; inset: 0; pointer-events: none; font-family: var(--font-mono); z-index: 5; }
.hud-corner {
  position: absolute;
  padding: 14px 18px;
  background: linear-gradient(180deg, rgba(25,31,34,.72), rgba(25,31,34,.35));
  border: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
#hud-tl { top: calc(16px + var(--safe-top)); left: calc(16px + var(--safe-left)); clip-path: polygon(0 0,100% 0,100% 100%,10px 100%,0 calc(100% - 10px)); }
#hud-tr { top: calc(16px + var(--safe-top)); right: calc(16px + var(--safe-right)); text-align: right; clip-path: polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%); }
#hud-bl { bottom: calc(74px + var(--safe-bottom)); left: calc(16px + var(--safe-left)); padding: 10px 16px; clip-path: polygon(0 0,100% 0,100% 100%,10px 100%,0 calc(100% - 10px)); }
#hud-bl .hud-value { font-size: 18px; color: var(--gold); }
.hud-label { font-size: 10px; letter-spacing: .18em; color: var(--text-dim); text-transform: uppercase; }
.hud-value { font-size: 28px; font-weight: 700; color: var(--accent); letter-spacing: .02em; line-height: 1.1; }
.hud-value.small { font-size: 18px; color: var(--text); }
.hud-sub { font-size: 11px; color: var(--text-dim); margin-top: 2px; }
#combo-flash {
  position: absolute; top: calc(78px + var(--safe-top)); left: calc(18px + var(--safe-left));
  font-family: var(--font-display); font-weight: 700; font-size: 13px;
  color: var(--gold); letter-spacing: .08em; opacity: 0; text-transform: uppercase;
}

/* ---------- Judgement / score popups ---------- */
.judge {
  position: absolute; transform: translate(-50%,-50%);
  font-family: var(--font-display); font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
  pointer-events: none; z-index: 8;
  text-shadow: 0 2px 10px rgba(0,0,0,.6);
}

/* ---------- Map intro banner ---------- */
#map-intro {
  position: absolute; top: 22%; left: 50%; transform: translate(-50%,-10px);
  z-index: 7; text-align: center; pointer-events: none; opacity: 0;
  transition: opacity .5s ease, transform .5s ease;
}
#map-intro.show { opacity: 1; transform: translate(-50%,0); }
#map-intro .eyebrow2 { font-size: 10px; letter-spacing: .3em; color: var(--accent); text-transform: uppercase; }
#map-intro .name2 { font-family: var(--font-display); font-size: 26px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; text-shadow: 0 2px 12px rgba(0,0,0,.7); }

/* ---------- Low-ammo / status toast ---------- */
#low-ammo-toast {
  position: absolute; top: calc(74px + var(--safe-top)); left: 50%; transform: translate(-50%,-8px);
  z-index: 7; pointer-events: none; opacity: 0; transition: opacity .35s ease, transform .35s ease;
  background: rgba(30,16,16,.82); border: 1px solid var(--danger); color: #ffd9d9;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .04em;
  padding: 8px 16px; max-width: min(88vw, 420px); text-align: center; white-space: normal;
}
#low-ammo-toast.show { opacity: 1; transform: translate(-50%,0); }

/* ---------- Top-center control bar (pause / fullscreen / mute) ---------- */
#control-bar {
  position: absolute; top: calc(16px + var(--safe-top)); left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px; pointer-events: auto; z-index: 6;
}
.icon-btn {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(25,31,34,.65); border: 1px solid var(--line); color: var(--text-dim);
  cursor: pointer; font-size: 16px; line-height: 1;
  backdrop-filter: blur(6px);
  transition: color .12s ease, border-color .12s ease;
}
.icon-btn:hover, .icon-btn:active { color: var(--accent); border-color: var(--accent); }
.icon-btn svg { width: 18px; height: 18px; fill: currentColor; }

/* ---------- Bottom action bar: ammo readout + SAM launch ---------- */
#action-bar {
  position: absolute; bottom: calc(16px + var(--safe-bottom)); left: 50%; transform: translateX(-50%);
  display: flex; align-items: center; gap: 10px; pointer-events: auto; z-index: 6;
}
#ammo-readout {
  display: flex; align-items: center; gap: 6px;
  background: rgba(25,31,34,.72); border: 1px solid var(--line); color: var(--text);
  font-family: var(--font-mono); font-weight: 700; font-size: 15px;
  padding: 10px 16px; backdrop-filter: blur(6px);
  clip-path: polygon(10px 0,100% 0,100% 100%,0 100%,0 10px);
}
#ammo-readout svg { width: 16px; height: 16px; fill: var(--accent); }
#ammo-readout.low { color: var(--danger); }
#ammo-readout.low svg { fill: var(--danger); }
#sam-btn {
  display: flex; align-items: center; gap: 6px;
  background: var(--accent); color: #1a1206; border: none; font-family: var(--font-mono); font-weight: 700; font-size: 15px;
  padding: 10px 18px; cursor: pointer; min-height: 44px;
  clip-path: polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 100%);
  transition: background .12s ease, opacity .12s ease;
}
#sam-btn svg { width: 17px; height: 17px; fill: #1a1206; }
#sam-btn:hover { background: #ffa564; }
#sam-btn:disabled { background: #3a4044; color: var(--text-dim); cursor: not-allowed; opacity: .7; }
#sam-btn:disabled svg { fill: var(--text-dim); }

/* ---------- Floating Shop button (bottom-right, reachable mid-run) ---------- */
#shop-fab {
  position: absolute; bottom: calc(16px + var(--safe-bottom)); right: calc(16px + var(--safe-right));
  display: flex; align-items: center; gap: 7px;
  background: rgba(25,31,34,.72); border: 1px solid var(--line); color: var(--text);
  font-family: var(--font-mono); font-weight: 700; font-size: 13px; letter-spacing: .04em; text-transform: uppercase;
  padding: 10px 16px; cursor: pointer; min-height: 44px; pointer-events: auto; z-index: 6;
  backdrop-filter: blur(6px);
  clip-path: polygon(10px 0,100% 0,100% 100%,0 100%,0 10px);
  transition: color .12s ease, border-color .12s ease;
}
#shop-fab svg { width: 17px; height: 17px; fill: var(--accent); }
#shop-fab:hover { color: var(--accent); border-color: var(--accent); }
#shop-fab.urgent {
  border-color: var(--danger); color: #ffd9d9;
  animation: shopUrgentPulse 1.1s ease-in-out infinite;
}
#shop-fab.urgent svg { fill: var(--danger); }
@keyframes shopUrgentPulse {
  0%, 100% { box-shadow: 0 0 0 rgba(255,92,92,0); }
  50% { box-shadow: 0 0 14px rgba(255,92,92,.55); }
}

/* ---------- Shop ---------- */
#shop-scrap-row {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--font-mono); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1px dashed var(--line);
}
#shop-scrap-row span:last-child { font-family: var(--font-display); font-size: 22px; font-weight: 700; color: var(--gold); }
#shop-list { display: flex; flex-direction: column; gap: 10px; max-height: 46vh; overflow-y: auto; }
.shop-item {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  border: 1px solid var(--line); padding: 12px 14px; background: rgba(0,0,0,.15);
}
.shop-item-info { flex: 1; }
.shop-item-name { font-family: var(--font-display); font-size: 14px; letter-spacing: .04em; text-transform: uppercase; }
.shop-item-desc { font-size: 11px; color: var(--text-dim); margin-top: 2px; }
.shop-item-buy {
  font-family: var(--font-mono); font-weight: 700; font-size: 12px;
  background: var(--accent); color: #1a1206; border: none; padding: 10px 14px; cursor: pointer;
  min-width: 84px; min-height: 40px;
  clip-path: polygon(8px 0,100% 0,100% 100%,0 100%,0 8px);
}
.shop-item-buy:hover { background: #ffa564; }
.shop-item-buy:disabled { background: #3a4044; color: var(--text-dim); cursor: not-allowed; }

/* ---------- Overlays (menu / leaderboard / game over) ---------- */
.overlay {
  position: absolute; inset: 0; z-index: 20;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(ellipse at center, rgba(15,19,21,.55), rgba(8,10,11,.92));
  backdrop-filter: blur(3px);
  padding: calc(16px + var(--safe-top)) calc(16px + var(--safe-right)) calc(16px + var(--safe-bottom)) calc(16px + var(--safe-left));
  overflow-y: auto;
}
.overlay.hidden { display: none; }
.panel {
  width: min(420px, 100%);
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-panel-2));
  border: 1px solid var(--line);
  padding: 36px 32px 30px;
  position: relative;
  clip-path: polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.panel::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.eyebrow { font-family: var(--font-mono); font-size: 11px; letter-spacing: .28em; color: var(--accent); text-transform: uppercase; margin-bottom: 8px; }
h1.title { font-family: var(--font-display); font-size: 38px; font-weight: 700; letter-spacing: .02em; text-transform: uppercase; line-height: 1.05; margin-bottom: 6px; }
h1.title span { color: var(--accent); }
.desc { font-size: 13px; color: var(--text-dim); line-height: 1.6; margin-bottom: 24px; }

.btn {
  display: block; width: 100%;
  font-family: var(--font-display); font-weight: 600; font-size: 16px;
  letter-spacing: .08em; text-transform: uppercase;
  background: var(--accent); color: #1a1206; border: none;
  padding: 14px 18px; cursor: pointer;
  clip-path: polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px));
  transition: transform .12s ease, background .12s ease;
  margin-top: 6px;
  min-height: 48px;
}
.btn:hover { background: #ffa564; }
.btn:active { transform: scale(.98); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); clip-path: none; margin-top: 10px; }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); background: transparent; }

.row { display: flex; gap: 10px; margin-top: 16px; }
input[type=text] {
  flex: 1; background: var(--bg-deep); border: 1px solid var(--line); color: var(--text);
  font-family: var(--font-mono); font-size: 14px; padding: 12px 12px; outline: none;
}
input[type=text]:focus { border-color: var(--accent); }

.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 20px 0 8px; }

/* Player stat overview on the main menu — 3 per row saves vertical space
   now that there are 5 stats (Scrap/Level/Ammo/Missiles/Turrets). */
#menu-player-stats { grid-template-columns: repeat(3, 1fr); gap: 10px; }
#menu-player-stats .stat { padding: 10px 8px; }
#menu-player-stats .hud-label { font-size: 9px; }
#menu-player-stats .val { font-size: 19px; }
.stat { border: 1px solid var(--line); padding: 12px 14px; }
.stat .hud-label { margin-bottom: 4px; }
.stat .val { font-family: var(--font-display); font-size: 24px; font-weight: 700; color: var(--accent); }

#leaderboard-list { margin-top: 6px; max-height: 180px; overflow-y: auto; }
.lb-row { display: flex; justify-content: space-between; align-items: center; gap: 6px; font-size: 13px; padding: 8px 6px; border-bottom: 1px dashed var(--line); color: var(--text-dim); }
.lb-row .rank { color: var(--accent); font-weight: 700; width: 24px; flex-shrink: 0; }
.lb-row .name { flex: 1; color: var(--text); padding-left: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lb-row .lvl {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: .04em; color: var(--text-dim);
  border: 1px solid var(--line); padding: 2px 5px; flex-shrink: 0;
}
.lb-row .pts { color: var(--gold); font-weight: 700; flex-shrink: 0; }
.lb-status { font-size: 11px; color: var(--text-dim); margin-top: 8px; text-align: center; }

/* Escalating flair for the top 3 daily/all-time ranks */
.lb-row.rank-1 { background: linear-gradient(90deg, rgba(255,210,63,.14), transparent); border-bottom-color: rgba(255,210,63,.4); animation: rankGlow1 2.4s ease-in-out infinite; }
.lb-row.rank-1 .rank, .lb-row.rank-1 .name { color: var(--gold); text-shadow: 0 0 8px rgba(255,210,63,.5); }
.lb-row.rank-1 .lvl { border-color: var(--gold); color: var(--gold); }
.lb-row.rank-2 { background: linear-gradient(90deg, rgba(210,215,220,.10), transparent); border-bottom-color: rgba(210,215,220,.35); }
.lb-row.rank-2 .rank, .lb-row.rank-2 .name { color: #dfe3e6; }
.lb-row.rank-3 { background: linear-gradient(90deg, rgba(205,140,90,.10), transparent); border-bottom-color: rgba(205,140,90,.35); }
.lb-row.rank-3 .rank, .lb-row.rank-3 .name { color: #cd8c5a; }
@keyframes rankGlow1 {
  0%, 100% { box-shadow: inset 0 0 0 rgba(255,210,63,0); }
  50% { box-shadow: inset 0 0 14px rgba(255,210,63,.12); }
}

.tabs { display: flex; gap: 2px; margin-bottom: 2px; }
.tab { flex: 1; text-align: center; padding: 9px 4px; font-size: 11px; letter-spacing: .1em; background: var(--bg-deep); color: var(--text-dim); cursor: pointer; border: 1px solid var(--line); border-bottom: none; text-transform: uppercase; }
.tab.active { color: var(--accent); background: var(--bg-panel-2); }

@media (max-width: 480px) {
  h1.title { font-size: 28px; }
  .hud-value { font-size: 22px; }
  .panel { padding: 26px 20px 22px; }
  .hud-corner { padding: 10px 12px; }
  #map-intro .name2 { font-size: 20px; }
  #shop-fab span { display: none; }
  #shop-fab { padding: 10px 12px; }
}
@media (max-width: 380px) {
  #action-bar { gap: 6px; bottom: calc(12px + var(--safe-bottom)); }
  #ammo-readout { padding: 8px 10px; font-size: 13px; gap: 4px; }
  #ammo-readout svg { width: 14px; height: 14px; }
  #sam-btn { padding: 8px 12px; font-size: 13px; gap: 4px; }
  #shop-fab { right: calc(10px + var(--safe-right)); bottom: calc(12px + var(--safe-bottom)); padding: 9px 10px; }
  #control-bar { gap: 6px; }
  .icon-btn { width: 36px; height: 36px; }
  #hud-tl, #hud-tr { padding: 8px 10px; }
  #hud-bl { padding: 8px 12px; bottom: calc(66px + var(--safe-bottom)); }
}
@media (max-height: 480px) {
  .panel { padding: 18px 20px 16px; }
  h1.title { font-size: 24px; margin-bottom: 2px; }
  .desc { margin-bottom: 12px; }
  .stat-grid { margin: 10px 0 4px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}