:root {
    --hue: 210;
    --bg-deep:   hsl(var(--hue), 45%, 6%);
    --bg-mid:    hsl(var(--hue), 40%, 10%);
    --ink:       hsl(var(--hue), 30%, 88%);
    --ink-dim:   hsl(var(--hue), 20%, 55%);
    --accent:    hsl(28, 100%, 55%);
    --accent-2:  hsl(50, 100%, 60%);
    --font-pixel: 'Arial Black', Impact, ui-monospace, monospace;
    --font-term:  ui-monospace, 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html, body { height: 100%; }
  body {
    background:
      radial-gradient(ellipse at 50% -10%, hsl(var(--hue), 50%, 14%) 0%, transparent 55%),
      var(--bg-deep);
    color: var(--ink);
    font-family: var(--font-term);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: clamp(0.4rem, 1.2vh, 1rem);
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
  }

  header { text-align: center; line-height: 1; }
  header h1 {
    font-family: var(--font-pixel);
    font-size: clamp(1rem, 3.2vmin, 1.6rem);
    letter-spacing: 0.12em;
    color: var(--accent-2);
    text-shadow: 0 0 12px hsl(48 100% 58% / 0.55), 3px 3px 0 hsl(356, 90%, 40%);
  }
  header p {
    margin-top: 0.5em;
    font-size: clamp(0.95rem, 2.2vmin, 1.25rem);
    color: var(--ink-dim);
    letter-spacing: 0.08em;
  }

  /* -------- skóre panel -------- */
  #scoreboard {
    display: flex;
    gap: clamp(0.4rem, 1.5vmin, 1rem);
    font-family: var(--font-pixel);
    font-size: clamp(0.45rem, 1.35vmin, 0.65rem);
  }
  .score-card {
    display: flex; flex-direction: column; align-items: center; gap: 0.45em;
    padding: 0.7em 1em 0.55em;
    background: hsl(var(--hue) 35% 12% / 0.8);
    border: 1px solid hsl(var(--hue) 30% 25%);
    border-top: 3px solid var(--cc, #888);
    min-width: 9em;
    transition: opacity 0.3s, transform 0.2s;
  }
  .score-card.dead { opacity: 0.35; }
  .score-card.winner { transform: translateY(-3px); box-shadow: 0 0 18px var(--cc); }
  .score-card .name { color: var(--cc, #fff); letter-spacing: 0.08em; }
  .score-card .pips { display: flex; gap: 0.4em; }
  .pip {
    width: 0.7em; height: 0.7em;
    background: hsl(var(--hue) 20% 22%);
    border: 1px solid hsl(var(--hue) 20% 35%);
  }
  .pip.on { background: var(--cc); border-color: var(--cc); box-shadow: 0 0 6px var(--cc); }
  .score-card .ko { color: var(--ink-dim); font-size: 0.85em; }
  .score-card .persona { color: hsl(var(--hue) 15% 42%); font-size: 0.72em; letter-spacing: 0.06em; }
  .score-card.car-0 { --cc: #ff5252; }
  .score-card.car-1 { --cc: #ffd23f; }
  .score-card.car-2 { --cc: #3fd977; }
  .score-card.car-3 { --cc: #3fb8ff; }
  .car-color-0 { color: #ff5252; }
  .car-color-1 { color: #ffd23f; }
  .car-color-2 { color: #3fd977; }
  .car-color-3 { color: #3fb8ff; }
  .nbar {
    width: 100%; height: 4px;
    background: hsl(var(--hue) 20% 20%);
    overflow: hidden;
    border: 0;
    appearance: none;
  }
  .nbar::-webkit-progress-bar { background: hsl(var(--hue) 20% 20%); }
  .nbar::-webkit-progress-value { background: var(--cc); }
  .nbar::-moz-progress-bar { background: var(--cc); }

  /* -------- herné plátno + CRT -------- */
  #stage {
    position: relative;
    width: auto;
    height: min(92vmin, 780px);
    max-width: calc(100vw - 1rem);
    aspect-ratio: 1;
    flex: 0 1 auto;
    align-self: center;
    min-height: 0;
  }
  canvas {
    display: block;
    width: 100%; height: 100%;
    background: transparent;
    image-rendering: pixelated;
  }
  #stage::after { /* CRT scanlines + vinetácia */
    content: '';
    position: absolute; inset: 0;
    pointer-events: none;
    background:
      repeating-linear-gradient(0deg, hsl(0 0% 0% / 0.16) 0 1px, transparent 1px 3px),
      radial-gradient(ellipse at center, transparent 55%, hsl(0 0% 0% / 0.45) 100%);
    mix-blend-mode: multiply;
  }

  /* -------- overlay obrazovky -------- */
  .overlay {
    position: absolute; inset: 0;
    display: flex; flex-direction: column;
    align-items: center; justify-content: safe center;
    overflow-y: auto;
    gap: 0.85em;
    text-align: center;
    background: hsl(var(--hue) 45% 5% / 0.82);
    backdrop-filter: blur(2px);
    font-family: var(--font-pixel);
    padding: 2rem;
    opacity: 1;
    transition: opacity 0.35s;
  }
  .overlay.hidden { opacity: 0; pointer-events: none; visibility: hidden; }
  #ov-match { background: hsl(var(--hue) 45% 5% / 0.6); } /* nech vidno konfety */
  .overlay h2 {
    font-size: clamp(1rem, 4vmin, 2rem);
    color: var(--accent-2);
    text-shadow: 0 0 16px hsl(48 100% 58% / 0.5), 3px 3px 0 hsl(356 90% 40%);
    line-height: 1.4;
  }
  .overlay .big { font-size: clamp(1.4rem, 6vmin, 3rem); }
  .overlay p {
    font-family: var(--font-term);
    font-size: clamp(1.05rem, 2.6vmin, 1.4rem);
    color: var(--ink);
    line-height: 1.5;
    max-width: 42ch;
  }
  .overlay .hint { color: var(--ink-dim); }
  .blink { animation: blink 1.1s steps(2, start) infinite; }
  @keyframes blink { 50% { opacity: 0; } }

  .modes { display: flex; gap: 0.9rem; flex-wrap: wrap; justify-content: center; }
  .mode-btn {
    font-family: var(--font-pixel);
    font-size: clamp(0.6rem, 1.9vmin, 0.85rem);
    padding: 0.9em 1.4em;
    color: var(--ink-dim);
    background: hsl(var(--hue) 30% 14%);
    border: 2px solid hsl(var(--hue) 25% 30%);
    box-shadow: 0 4px 0 hsl(var(--hue) 30% 20%);
    cursor: pointer;
    letter-spacing: 0.08em;
  }
  .mode-btn.sel {
    color: var(--accent-2);
    border-color: var(--accent);
    background: hsl(28 80% 20%);
    box-shadow: 0 4px 0 hsl(28 90% 30%), 0 0 14px hsl(28 100% 55% / 0.35);
  }
  .mode-btn.small {
    font-size: clamp(0.48rem, 1.5vmin, 0.65rem);
    padding: 0.7em 1em;
  }
  .mode-btn.small.sel {
    color: #7fd4ff;
    border-color: #3fb8ff;
    background: hsl(200 60% 18%);
    box-shadow: 0 4px 0 hsl(200 70% 28%), 0 0 12px hsl(200 95% 60% / 0.3);
  }
  .mode-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .diff-row {
    display: flex; align-items: center; gap: 0.8rem;
    font-family: var(--font-term);
    font-size: clamp(1rem, 2.3vmin, 1.2rem);
    color: var(--ink-dim);
  }

  .legend {
    display: flex; gap: 1.6em;
    font-family: var(--font-term);
    font-size: clamp(1rem, 2.3vmin, 1.25rem);
    color: var(--ink-dim);
  }
  .legend b { color: var(--ink); }

  #countdown-num {
    font-size: clamp(3rem, 15vmin, 6.5rem);
    color: var(--accent);
    text-shadow: 0 0 30px hsl(28 100% 55% / 0.7), 4px 4px 0 hsl(356 90% 35%);
  }
  #arena-name { color: #7fd4ff; font-size: clamp(0.7rem, 2.4vmin, 1.1rem); }

  /* -------- dotykové ovládanie -------- */
  #touch-ui { display: none; }
  @media (pointer: coarse) {
    body.game-active #touch-ui {
      display: flex;
      position: fixed;
      bottom: max(0.75rem, env(safe-area-inset-bottom));
      left: 0; right: 0;
      justify-content: space-between;
      padding: 0 1rem;
      pointer-events: none;
      z-index: 30;
    }
    .tgroup { display: flex; gap: 0.75rem; pointer-events: auto; }
    .tbtn {
      width: clamp(54px, 15vw, 80px);
      height: clamp(54px, 15vw, 80px);
      border-radius: 50%;
      border: 2px solid hsl(var(--hue) 30% 40%);
      background: hsl(var(--hue) 35% 15% / 0.75);
      color: var(--ink);
      font-family: var(--font-pixel);
      font-size: 1.05rem;
      display: flex; align-items: center; justify-content: center;
      -webkit-tap-highlight-color: transparent;
      touch-action: none;
    }
    .tbtn:active { background: hsl(28 100% 45% / 0.8); border-color: var(--accent); }
    .tbtn.nitro { border-color: hsl(50 100% 50%); color: var(--accent-2); }
  }

  /* -------- toast + trofeje -------- */
  #toast {
    position: fixed; top: 0.9rem; right: 0.9rem; z-index: 60;
    font-family: var(--font-pixel);
    font-size: 0.6rem;
    color: var(--accent-2);
    background: hsl(28 80% 18% / 0.96);
    border: 2px solid var(--accent);
    box-shadow: 0 0 18px hsl(28 100% 55% / 0.4);
    padding: 0.9em 1.1em;
    letter-spacing: 0.06em;
    transform: translateX(130%);
    opacity: 0;
    transition: transform 0.35s, opacity 0.35s;
    pointer-events: none;
  }
  #toast.show { transform: none; opacity: 1; }

  #trophy-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.6rem;
    width: min(92%, 560px);
  }
  .trophy {
    border: 1px solid hsl(var(--hue) 25% 25%);
    background: hsl(var(--hue) 35% 11% / 0.85);
    padding: 0.7em 0.8em;
    text-align: left;
  }
  .trophy .tn {
    font-family: var(--font-pixel);
    font-size: 0.58rem;
    color: hsl(var(--hue) 15% 40%);
    display: block;
    margin-bottom: 0.4em;
    letter-spacing: 0.06em;
  }
  .trophy .td { font-family: var(--font-term); font-size: 1.02rem; color: hsl(var(--hue) 15% 42%); }
  .trophy.own { border-color: var(--accent); box-shadow: 0 0 10px hsl(28 100% 55% / 0.25); }
  .trophy.own .tn { color: var(--accent-2); }
  .trophy.own .td { color: var(--ink); }
  .career-btn {
    border: 0;
    background: transparent;
    cursor: pointer;
    font: inherit;
  }
  .career-btn:hover { color: var(--ink); }
  .start-btn {
    color: var(--accent-2);
    border-color: var(--accent);
    background: hsl(28 80% 20%);
    min-width: min(100%, 18rem);
  }

  footer {
    font-size: clamp(0.9rem, 2vmin, 1.1rem);
    color: var(--ink-dim);
    letter-spacing: 0.06em;
    text-align: center;
  }
  footer b { color: var(--ink); }

  @media (max-height: 720px), (pointer: coarse) and (max-width: 720px) {
    #ov-title {
      gap: 0.38rem;
      padding: 0.6rem;
    }
    #ov-title h2.big {
      font-size: 1.15rem;
      line-height: 1.15;
    }
    #ov-title .intro,
    #ov-title .legend,
    #ov-title .controls-hint,
    #ov-title .blink { display: none; }
    #ov-title .modes { gap: 0.55rem; }
    #ov-title .mode-btn {
      font-size: 0.55rem;
      padding: 0.62em 0.85em;
    }
    #ov-title .mode-btn.small {
      font-size: 0.48rem;
      padding: 0.55em 0.68em;
    }
    #ov-title .diff-row {
      gap: 0.42rem;
      font-size: 0.86rem;
    }
    #ov-title .career-btn { font-size: 0.78rem; }
    #ov-title .start-btn { min-height: 2.25rem; }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  }