:root {
  --bg-top: #0f243f;
  --bg-mid: #1f2f4f;
  --bg-low: #101318;
  --card-bg: rgba(12, 20, 29, 0.48);
  --card-stroke: rgba(196, 225, 255, 0.24);
  --card-shadow: rgba(0, 0, 0, 0.35);
  --text-main: #f3f7ff;
  --text-soft: rgba(230, 240, 255, 0.84);
  --accent: #56b9ff;
  --accent-hot: #8ce8ff;
  --warn: #ff7f78;
  --nitro-a: #5ce5ff;
  --nitro-b: #5f9dff;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body,
#app {
  width: 100%;
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(140% 120% at 50% -10%, #3a6daa 0%, transparent 48%),
    linear-gradient(180deg, var(--bg-top), var(--bg-mid) 48%, var(--bg-low));
  color: var(--text-main);
  font-family: "Trebuchet MS", "Avenir Next Condensed", "Segoe UI", sans-serif;
  letter-spacing: 0.02em;
}

#gameCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

#fxLayer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.vignette,
.speedlines,
.nitro-glow {
  position: absolute;
  inset: 0;
}

.vignette {
  opacity: 0.58;
  background:
    radial-gradient(circle at 50% 35%, rgba(0, 0, 0, 0) 35%, rgba(0, 0, 0, 0.18) 62%, rgba(0, 0, 0, 0.62) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0) 66%, rgba(0, 0, 0, 0.26) 100%);
}

.speedlines {
  opacity: 0.03;
  mix-blend-mode: screen;
  background-image:
    radial-gradient(58% 40% at 50% 78%, rgba(172, 220, 255, 0.12) 0%, rgba(172, 220, 255, 0.05) 48%, rgba(172, 220, 255, 0) 74%),
    linear-gradient(180deg, rgba(144, 204, 255, 0) 0 56%, rgba(144, 204, 255, 0.08) 82%, rgba(144, 204, 255, 0) 100%);
}

.nitro-glow {
  opacity: 0;
  mix-blend-mode: screen;
  background:
    radial-gradient(45% 28% at 50% 78%, rgba(105, 232, 255, 0.65), rgba(55, 141, 255, 0.22) 52%, rgba(35, 70, 130, 0) 72%),
    linear-gradient(180deg, rgba(85, 186, 255, 0) 35%, rgba(85, 186, 255, 0.2) 100%);
}

#hud {
  position: absolute;
  top: max(10px, env(safe-area-inset-top));
  left: max(10px, env(safe-area-inset-left));
  right: max(10px, env(safe-area-inset-right));
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(5, minmax(76px, 1fr));
  gap: 8px;
  pointer-events: none;
}

.stat-card {
  min-height: 58px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--card-stroke);
  background: var(--card-bg);
  box-shadow: 0 10px 24px var(--card-shadow);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.label {
  color: var(--text-soft);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
}

.value {
  margin-top: 4px;
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1;
  text-shadow: 0 0 14px rgba(90, 181, 255, 0.32);
}

.nitro-card {
  grid-column: span 1;
  justify-content: center;
}

.nitro-head {
  display: flex;
  justify-content: center;
  align-items: baseline;
  gap: 8px;
}

.subvalue {
  font-size: 0.72rem;
  font-weight: 700;
  color: #d9f1ff;
}

.nitro-track {
  margin-top: 8px;
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: rgba(6, 11, 20, 0.78);
  border: 1px solid rgba(176, 218, 255, 0.25);
  overflow: hidden;
}

.nitro-fill {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--nitro-a), var(--nitro-b));
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.25), 0 0 12px rgba(95, 179, 255, 0.52);
  transition: width 120ms linear;
}

.event-feed {
  position: absolute;
  left: 50%;
  top: calc(100% + 4px);
  transform: translateX(-50%) translateY(-8px);
  opacity: 0;
  pointer-events: none;
  color: #d9f5ff;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-shadow: 0 0 18px rgba(103, 194, 255, 0.78);
}

.event-feed.visible {
  animation: event-pop 900ms ease forwards;
}

.event-feed.near {
  color: #b8f6ff;
}

.event-feed.hit {
  color: #ffd0d0;
}

#hud.damage .stat-card {
  border-color: rgba(255, 136, 136, 0.55);
  box-shadow: 0 0 0 1px rgba(255, 136, 136, 0.2), 0 12px 26px rgba(138, 32, 32, 0.45);
}

.screen {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  text-align: center;
  background: linear-gradient(180deg, rgba(6, 10, 14, 0.25), rgba(6, 10, 14, 0.62));
}

.screen.visible {
  display: flex;
}

.screen.fatal {
  z-index: 20;
  background: linear-gradient(180deg, rgba(25, 7, 8, 0.86), rgba(8, 3, 4, 0.95));
}

.panel {
  width: min(680px, 100%);
  padding: 26px 24px;
  border-radius: 20px;
  border: 1px solid rgba(182, 222, 255, 0.28);
  background: rgba(8, 15, 25, 0.66);
  box-shadow: 0 16px 46px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(10px);
}

.panel h1,
.panel h2 {
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.panel h1 {
  font-size: clamp(1.9rem, 5.2vw, 3.2rem);
  text-shadow: 0 0 26px rgba(95, 173, 255, 0.56);
}

.panel h2 {
  font-size: clamp(1.6rem, 4.3vw, 2.4rem);
}

.tagline {
  margin: 14px auto 0;
  max-width: 560px;
  font-size: clamp(0.95rem, 2.2vw, 1.15rem);
  color: var(--text-soft);
  line-height: 1.45;
}

.meta-grid {
  margin-top: 16px;
  text-align: left;
  display: grid;
  gap: 10px;
  color: #deecff;
  font-size: 0.92rem;
}

.result-row {
  margin: 10px 0;
  font-size: 1.1rem;
}

.primary-btn {
  margin-top: 18px;
  min-width: 170px;
  padding: 12px 20px;
  border: none;
  border-radius: 999px;
  color: #ebf6ff;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  background: linear-gradient(130deg, #308fff, #5db3ff 52%, #6de4ff);
  box-shadow: 0 10px 24px rgba(38, 123, 213, 0.5), inset 0 0 12px rgba(255, 255, 255, 0.24);
  transition: transform 120ms ease, filter 120ms ease;
}

.primary-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.08);
}

.primary-btn:active {
  transform: translateY(0);
}

#touchControls {
  position: absolute;
  left: max(10px, env(safe-area-inset-left));
  right: max(10px, env(safe-area-inset-right));
  bottom: max(10px, env(safe-area-inset-bottom));
  z-index: 11;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  pointer-events: auto;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

#touchControls button {
  min-width: 88px;
  min-height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(182, 222, 255, 0.3);
  background: rgba(12, 22, 34, 0.72);
  color: #eaf6ff;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  box-shadow: none;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
}

#touchControls button.active {
  background: rgba(74, 154, 231, 0.92);
  border-color: rgba(185, 229, 255, 0.7);
  transform: none;
}

@media (max-width: 900px) {
  #hud {
    grid-template-columns: repeat(2, minmax(70px, 1fr));
    gap: 7px;
  }

  .stat-card {
    min-height: 52px;
    padding: 9px 10px;
  }

  .value {
    font-size: 1.05rem;
  }

  .nitro-card {
    grid-column: span 2;
  }

  .panel {
    padding: 20px 16px;
  }

  .meta-grid {
    font-size: 0.86rem;
  }
}

@media (hover: none), (pointer: coarse) {
  #touchControls {
    display: flex;
  }
}

@keyframes event-pop {
  0% {
    opacity: 0;
    transform: translateX(-50%) translateY(6px) scale(0.96);
  }
  18% {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(-14px) scale(1);
  }
}