:root {
  --bg: #02050c;
  --panel: #07111f;
  --panel-strong: #0b1b2e;
  --cyan: #22f7ff;
  --cyan-soft: rgba(34, 247, 255, 0.24);
  --cyan-faint: rgba(34, 247, 255, 0.09);
  --magenta: #ff246d;
  --green: #7cff55;
  --text: #d7fbff;
  --muted: #6f9fb0;
  --shadow: rgba(0, 0, 0, 0.55);
  --font-display: "Orbitron", "Consolas", monospace;
  --font-ui: "Rajdhani", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
}

body {
  min-height: 100vh;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(34, 247, 255, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(34, 247, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 52% 30%, rgba(34, 247, 255, 0.11), transparent 34rem),
    #02050c;
  background-size: 72px 72px, 72px 72px, auto, auto;
}

button,
input {
  font: inherit;
}

.life-shell {
  width: min(1500px, calc(100vw - 24px));
  height: min(920px, calc(100vh - 24px));
  margin: 12px auto;
  display: grid;
  grid-template-rows: auto 1fr auto;
  border: 1px solid rgba(34, 247, 255, 0.48);
  background: linear-gradient(180deg, rgba(4, 12, 23, 0.96), rgba(3, 7, 14, 0.98));
  box-shadow:
    0 0 0 1px rgba(34, 247, 255, 0.12),
    0 0 26px rgba(34, 247, 255, 0.17),
    0 24px 80px var(--shadow);
}

.command-bar,
.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 54px;
  padding: 8px 18px;
  border-bottom: 1px solid rgba(34, 247, 255, 0.52);
  background: linear-gradient(180deg, rgba(10, 26, 44, 0.98), rgba(5, 12, 24, 0.98));
}

.command-bar h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.6vw, 1.6rem);
  font-weight: 900;
  letter-spacing: 0;
  color: var(--cyan);
  text-shadow: 0 0 7px rgba(34, 247, 255, 0.9), 0 0 18px rgba(34, 247, 255, 0.45);
  white-space: nowrap;
}

.controls {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.control-button {
  min-width: 84px;
  min-height: 36px;
  padding: 6px 14px;
  border: 1px solid currentColor;
  border-radius: 0;
  background: rgba(7, 17, 31, 0.86);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  color: var(--magenta);
  cursor: pointer;
  text-shadow: 0 0 10px currentColor;
  box-shadow: inset 0 0 14px rgba(255, 36, 109, 0.18), 0 0 10px rgba(255, 36, 109, 0.18);
}

.control-button--start.is-running {
  color: var(--green);
  box-shadow: inset 0 0 14px rgba(124, 255, 85, 0.18), 0 0 12px rgba(124, 255, 85, 0.22);
}

.control-button:hover,
.control-button:focus-visible {
  background: rgba(14, 36, 58, 0.95);
  outline: 1px solid currentColor;
}

.speed-control {
  display: grid;
  grid-template-columns: auto minmax(130px, 220px) 3ch;
  align-items: center;
  gap: 10px;
  min-width: min(330px, 44vw);
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(34, 247, 255, 0.65);
}

.speed-control input {
  width: 100%;
  accent-color: var(--cyan);
}

.speed-control output {
  text-align: right;
}

.board-frame {
  position: relative;
  margin: 20px;
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(34, 247, 255, 0.19);
  background:
    linear-gradient(90deg, rgba(34, 247, 255, 0.032) 1px, transparent 1px),
    linear-gradient(rgba(34, 247, 255, 0.028) 1px, transparent 1px),
    linear-gradient(180deg, rgba(4, 12, 22, 0.95), rgba(2, 4, 10, 0.98));
  background-size: 36px 36px, 36px 36px, auto;
  cursor: crosshair;
  touch-action: none;
  user-select: none;
  box-shadow: inset 0 0 42px rgba(0, 0, 0, 0.78), inset 0 0 18px rgba(34, 247, 255, 0.08);
}

.board-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0 49%, rgba(34, 247, 255, 0.035) 50%, transparent 51%),
    linear-gradient(transparent 0 49%, rgba(34, 247, 255, 0.025) 50%, transparent 51%);
  background-size: 180px 180px;
}

#life-board {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.scanline {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.035) 0,
    rgba(255, 255, 255, 0.035) 1px,
    transparent 2px,
    transparent 5px
  );
  mix-blend-mode: screen;
  opacity: 0.34;
}

.cursor-readout {
  position: absolute;
  right: 12px;
  bottom: 10px;
  min-width: 108px;
  padding: 4px 8px;
  border: 1px solid rgba(34, 247, 255, 0.24);
  background: rgba(2, 5, 12, 0.68);
  color: var(--muted);
  font-family: var(--font-display);
  font-size: 0.68rem;
}

.status-bar {
  min-height: 42px;
  border-top: 1px solid rgba(34, 247, 255, 0.34);
  border-bottom: 0;
  justify-content: flex-start;
  font-family: var(--font-display);
  font-size: 0.74rem;
  color: var(--muted);
}

.status-bar span {
  min-width: 84px;
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(34, 247, 255, 0.55);
}

@media (max-width: 760px) {
  body {
    overflow: auto;
  }

  .life-shell {
    width: 100vw;
    min-height: 100vh;
    height: 100vh;
    margin: 0;
    border-left: 0;
    border-right: 0;
  }

  .command-bar {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
    padding: 12px;
  }

  .command-bar h1 {
    white-space: normal;
  }

  .controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .speed-control {
    grid-column: 1 / -1;
    grid-template-columns: auto 1fr 3ch;
    min-width: 0;
  }

  .board-frame {
    margin: 12px;
  }

  .status-bar {
    flex-wrap: wrap;
    gap: 10px;
    padding: 9px 12px;
  }

  .status-bar span {
    min-width: auto;
  }
}