/* ============================================================
   MEGAMANIA 2.0 — MOBILE-FIRST APP STYLESHEET
   Canvas fills 100% screen. All overlays use fixed positioning.
   ============================================================ */

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

:root {
  --green:  #00ff41; --amber: #ffb000; --cyan: #00ffff;
  --mag:    #ff00ff; --red:   #ff2020; --yel:  #ffff00;
  --font:   'Press Start 2P', monospace;
  --gG: 0 0 4px #00ff41, 0 0 12px #00ff41, 0 0 24px rgba(0,255,65,.35);
  --gC: 0 0 4px #00ffff, 0 0 12px #00ffff, 0 0 24px rgba(0,255,255,.35);
  --gA: 0 0 4px #ffb000, 0 0 12px #ffb000, 0 0 24px rgba(255,176,0,.35);
  --gR: 0 0 4px #ff2020, 0 0 12px #ff2020, 0 0 24px rgba(255,32,32,.35);
  /* Safe areas */
  --st: env(safe-area-inset-top, 0px);
  --sr: env(safe-area-inset-right, 0px);
  --sb: env(safe-area-inset-bottom, 0px);
  --sl: env(safe-area-inset-left, 0px);
}

html, body {
  width: 100%; height: 100%; overflow: hidden;
  background: #000; font-family: var(--font);
  touch-action: none; user-select: none; -webkit-user-select: none;
  overscroll-behavior: none;
}

/* ── Canvas fills 100% of viewport ── */
#gameCanvas {
  position: fixed; inset: 0;
  width: 100vw; height: 100vh;
  display: block;
  touch-action: none;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* ── Overlays ── */
.overlay {
  position: fixed; inset: 0;
  display: none; justify-content: center; align-items: center;
  background: rgba(0,3,0,.9); z-index: 10;
  padding: calc(var(--st) + 16px) calc(var(--sr) + 16px) calc(var(--sb) + 16px) calc(var(--sl) + 16px);
}
.overlay.active { display: flex; animation: fadeIn .2s ease; }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }

.menu-panel {
  text-align: center; max-width: 95vw; max-height: 92vh;
  overflow-y: auto; animation: slideUp .3s ease;
}
@keyframes slideUp { from{opacity:0;transform:translateY(12px)} to{opacity:1;transform:translateY(0)} }

.retro-border {
  border: 2px solid var(--green);
  padding: clamp(14px,4vw,28px) clamp(16px,5vw,36px);
  box-shadow: var(--gG), inset 0 0 20px rgba(0,255,65,.03);
  position: relative;
}
.retro-border::before,.retro-border::after {
  content:'◈'; position:absolute; color:var(--cyan);
  font-size:9px; text-shadow:var(--gC);
}
.retro-border::before{top:-7px;left:-7px}
.retro-border::after{bottom:-7px;right:-7px}

.title-main {
  font-size: clamp(22px,7vw,40px);
  color:var(--cyan); text-shadow:var(--gC);
  letter-spacing:4px; line-height:1.4; margin-bottom:4px;
  animation: flicker 6s infinite;
}
@keyframes flicker { 0%,94%,96%,98%,100%{opacity:1} 95%,97%,99%{opacity:.82} }

.title-sub {
  display:block; font-size:clamp(7px,2vw,10px);
  color:var(--green); text-shadow:var(--gG);
  letter-spacing:3px; margin-bottom:14px;
  animation: blink 1.2s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.title-showcase {
  font-size:clamp(20px,6vw,32px); margin-bottom:12px;
  filter:drop-shadow(0 0 6px var(--amber));
}

.touch-hint {
  font-size: clamp(6px,1.8vw,8px); color:#006620;
  margin-top:6px; letter-spacing:1px;
}

.high-score-display {
  font-size:clamp(7px,2vw,10px); color:var(--amber);
  text-shadow:var(--gA); margin-bottom:12px; letter-spacing:2px;
}
.high-score-display strong {
  color:var(--yel); text-shadow:0 0 4px #ffff00,0 0 10px #ffff00;
  font-size:clamp(9px,2.5vw,14px);
}

.controls-info {
  font-size:clamp(6px,1.6vw,8px); color:#00aa28;
  line-height:2.2; margin-bottom:16px; letter-spacing:1px;
}

.btn-primary {
  display:block; width:100%; padding:clamp(10px,3vw,14px) 8px;
  border:2px solid var(--green); background:transparent;
  color:var(--green); font-family:var(--font);
  font-size:clamp(8px,2.2vw,12px); letter-spacing:2px;
  cursor:pointer; text-shadow:var(--gG); box-shadow:var(--gG);
  animation:btnPulse 2s ease-in-out infinite;
  transition:background .1s; touch-action:manipulation;
}
@keyframes btnPulse {0%,100%{box-shadow:var(--gG)} 50%{box-shadow:0 0 8px #00ff41,0 0 22px #00ff41,0 0 40px rgba(0,255,65,.55)}}
.btn-primary:hover,.btn-primary:active { background:rgba(0,255,65,.15); }

.hint-text {
  display:block; font-size:clamp(5px,1.5vw,8px);
  color:#004d10; margin-top:8px; letter-spacing:2px;
  animation:blink 1.5s step-end infinite;
}

/* --- Pause --- */
.pause-title {
  font-size:clamp(14px,4vw,22px); color:var(--cyan);
  text-shadow:var(--gC); letter-spacing:3px; margin-bottom:14px;
}
.pause-info {
  font-size:clamp(6px,1.8vw,9px); color:var(--green);
  margin-bottom:16px; letter-spacing:1px;
  animation:blink 1s step-end infinite;
}

/* --- Game Over --- */
.gameover-title {
  font-size:clamp(18px,5.5vw,30px); color:var(--red);
  text-shadow:var(--gR); letter-spacing:3px;
  margin-bottom:16px; animation:flicker 3s infinite;
}
.final-score{margin-bottom:12px}
.final-score .label {
  display:block; font-size:clamp(6px,1.8vw,9px);
  color:#00aa28; letter-spacing:2px; margin-bottom:5px;
}
.final-score strong {
  font-size:clamp(22px,6vw,32px); color:var(--yel);
  text-shadow:0 0 6px #ffff00,0 0 14px #ffff00;
}
.new-record {
  font-size:clamp(7px,2vw,10px); color:var(--yel);
  text-shadow:0 0 6px #ffff00,0 0 14px #ffff00;
  margin-bottom:10px; animation:rPulse .5s step-end infinite;
}
@keyframes rPulse{0%,100%{opacity:1}50%{opacity:0}}

/* ── HUD ── */
#hud {
  position:fixed; top:0; left:0; right:0;
  display:flex; justify-content:space-between; align-items:flex-start;
  padding-top:   calc(var(--st) + 6px);
  padding-left:  calc(var(--sl) + 10px);
  padding-right: calc(var(--sr) + 10px);
  padding-bottom:6px;
  background:linear-gradient(180deg,rgba(0,6,0,.8) 0%,transparent 100%);
  border-bottom:1px solid rgba(0,255,65,.1);
  pointer-events:none; z-index:5;
}
.hud-label {
  display:block; font-size:clamp(5px,1.4vw,8px);
  color:#004d10; letter-spacing:2px; margin-bottom:1px;
}
.hud-value {
  font-family:var(--font); font-size:clamp(10px,2.5vw,16px);
  color:var(--green); text-shadow:var(--gG);
}
#hud-center { text-align:center; }
#hud-right  { text-align:right; }

/* Pause button in HUD */
.btn-pause-hud {
  display:block; background:transparent; border:none;
  color:var(--green); font-size:clamp(14px,3.5vw,22px);
  text-shadow:var(--gG); cursor:pointer;
  pointer-events:all; touch-action:manipulation;
  margin-bottom:2px; line-height:1;
}

/* ── Fuel Bar ── */
#fuel-bar-container {
  position:fixed; bottom:0; left:0; right:0;
  display:flex; align-items:center; gap:6px;
  padding-bottom: calc(var(--sb) + 5px);
  padding-left:   calc(var(--sl) + 10px);
  padding-right:  calc(var(--sr) + 10px);
  padding-top:5px;
  background:linear-gradient(0deg,rgba(0,6,0,.85) 0%,transparent 100%);
  border-top:1px solid rgba(0,255,65,.1);
  pointer-events:none; z-index:5;
}
.fuel-label {
  font-size:clamp(5px,1.4vw,8px); color:#004d10;
  min-width:26px; letter-spacing:1px;
}
#fuel-bar-track {
  flex:1; height:8px;
  background:rgba(0,255,65,.06);
  border:1px solid rgba(0,255,65,.28);
  position:relative; overflow:hidden;
}
#fuel-bar-track::after {
  content:''; position:absolute; inset:0;
  background:repeating-linear-gradient(90deg,transparent,transparent 18px,rgba(0,0,0,.55) 18px,rgba(0,0,0,.55) 20px);
  z-index:2; pointer-events:none;
}
#fuel-bar-fill {
  height:100%; width:100%;
  background:var(--green); box-shadow:0 0 5px var(--green);
  transition:width .15s linear,background .3s;
  position:relative; z-index:1;
}

/* ── Boss HP ── */
#boss-hp-container {
  position:fixed; top:auto; left:50%; transform:translateX(-50%);
  margin-top:calc(var(--st) + 44px);
  top:calc(var(--st) + 44px);
  display:flex; align-items:center; gap:6px;
  padding:3px 10px; background:rgba(0,0,0,.85);
  border:1px solid var(--red); box-shadow:var(--gR);
  pointer-events:none; z-index:5; white-space:nowrap;
}
.boss-hp-label {
  font-size:clamp(5px,1.4vw,7px); color:var(--red);
  text-shadow:var(--gR); animation:blink .5s step-end infinite;
}
#boss-hp-track {
  width:clamp(90px,18vw,200px); height:7px;
  background:rgba(255,32,32,.1); border:1px solid rgba(255,32,32,.35);
  overflow:hidden; position:relative;
}
#boss-hp-track::after {
  content:''; position:absolute; inset:0;
  background:repeating-linear-gradient(90deg,transparent,transparent 11px,rgba(0,0,0,.45) 11px,rgba(0,0,0,.45) 12px);
  z-index:2;
}
#boss-hp-fill {
  height:100%; width:100%;
  background:var(--red); box-shadow:0 0 5px var(--red);
  transition:width .15s; z-index:1;
}

/* ── Wave Announce ── */
#wave-announce {
  position:fixed; top:50%; left:50%; transform:translate(-50%,-50%);
  text-align:center; pointer-events:none; z-index:6; white-space:nowrap;
}
.wave-text {
  font-size:clamp(16px,5vw,30px); color:var(--cyan);
  text-shadow:var(--gC); letter-spacing:4px; animation:flicker 2s infinite;
}
.wave-sub {
  font-size:clamp(9px,2.5vw,14px); margin-top:10px;
  color:var(--green); text-shadow:var(--gG); letter-spacing:2px;
}

/* ── Powerup ── */
#powerup-indicator {
  position:fixed; bottom:calc(var(--sb) + 36px); left:50%; transform:translateX(-50%);
  display:flex; align-items:center; gap:6px; padding:3px 10px;
  background:rgba(0,0,0,.8); border:1px solid var(--amber);
  box-shadow:var(--gA); pointer-events:none; z-index:5;
}
#powerup-icon { font-size:clamp(12px,3vw,18px); }
#powerup-timer-track {
  width:60px; height:5px;
  background:rgba(255,176,0,.1); border:1px solid rgba(255,176,0,.35); overflow:hidden;
}
#powerup-timer-fill {
  height:100%; width:100%;
  background:var(--amber); box-shadow:0 0 4px var(--amber);
  transition:width .1s linear;
}

/* ── Touch Arrow Buttons (shown on coarse-pointer screens) ── */
#touch-controls {
  position:fixed; bottom:0; left:0; right:0;
  height:100px; display:none;
  justify-content:space-between; align-items:center;
  padding-left:  calc(var(--sl) + 14px);
  padding-right: calc(var(--sr) + 14px);
  padding-bottom:calc(var(--sb) + 10px);
  z-index:4; pointer-events:none;
}
@media (pointer:coarse) {
  #touch-controls     { display:flex; }
  #fuel-bar-container { bottom:100px; }
  #powerup-indicator  { bottom:calc(var(--sb) + 130px); }
}
#touch-move { display:flex; gap:10px; pointer-events:all; }
.touch-btn {
  pointer-events:all; width:68px; height:68px;
  border:2px solid var(--green); border-radius:8px;
  background:rgba(0,255,65,.07); color:var(--green);
  font-size:22px; text-shadow:var(--gG); box-shadow:var(--gG);
  cursor:pointer; touch-action:none; display:flex;
  align-items:center; justify-content:center;
  transition:background .05s,transform .05s;
}
.touch-btn:active,.touch-btn.pressed {
  background:rgba(0,255,65,.2);
  box-shadow:0 0 12px #00ff41,0 0 28px #00ff41;
  transform:scale(.94);
}
.touch-info-label {
  font-size:clamp(6px,1.5vw,8px); color:#006620;
  pointer-events:none; letter-spacing:1px; text-align:right;
}

/* ── Touch hint overlay ── */
#touch-hint-overlay {
  position:fixed; inset:0; z-index:3;
  pointer-events:none; display:flex; align-items:flex-end; justify-content:center;
  padding-bottom:140px;
}
.touch-zone-label {
  font-size:clamp(8px,2vw,11px); color:rgba(0,255,65,.3);
  text-align:center; letter-spacing:2px; line-height:2;
}

/* ── Landscape narrow: shrink controls ── */
@media (max-height:420px) and (pointer:coarse) {
  #touch-controls     { height:76px; }
  .touch-btn          { width:56px; height:56px; font-size:18px; }
  #fuel-bar-container { bottom:76px; }
}

/* ── Utility ── */
.hidden { display:none !important; }