html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  font-family: "Trebuchet MS", sans-serif;
  background: #02060d;
  color: #f3f7ff;
}

body {
  position: relative;
}

button,
input,
select {
  font: inherit;
}

.game-shell {
  display: grid;
  grid-template-columns: minmax(84px, 112px) 1fr minmax(84px, 112px);
  grid-template-rows: repeat(11, minmax(0, 1fr));
  gap: 12px;
  height: 100vh;
  padding: 12px;
  box-sizing: border-box;
  background:
    radial-gradient(circle at top, rgba(39, 88, 173, 0.3), transparent 34%),
    linear-gradient(180deg, #08111f 0%, #04070f 68%, #010204 100%);
}

.answer-rail {
  display: grid;
  grid-template-rows: repeat(10, minmax(0, 1fr));
  gap: 8px;
  align-items: stretch;
}

.left-answer-rail {
  grid-column: 1;
  grid-row: 1 / span 10;
}

.right-answer-rail {
  grid-column: 3;
  grid-row: 1 / span 10;
}

.answer-button {
  min-height: 0;
  width: 100%;
  border: 1px solid rgba(154, 196, 255, 0.25);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(22, 39, 67, 0.95), rgba(10, 18, 33, 0.95));
  color: #f3f7ff;
  font-size: clamp(18px, 2vw, 28px);
  font-weight: 700;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.answer-button:hover:enabled,
.answer-button:focus-visible:enabled {
  transform: translateY(-1px);
  border-color: rgba(154, 196, 255, 0.65);
  background: linear-gradient(180deg, rgba(40, 74, 123, 0.95), rgba(15, 29, 53, 0.95));
}

.answer-button:disabled {
  cursor: default;
  opacity: 0.45;
}

.answer-spacer {
  border-radius: 14px;
  border: 1px dashed rgba(154, 196, 255, 0.12);
  background: rgba(255, 255, 255, 0.02);
}

.game-stage {
  position: relative;
  grid-column: 2;
  grid-row: 1 / span 10;
  min-width: 0;
  border: 1px solid rgba(160, 206, 255, 0.16);
  border-radius: 22px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 0%, rgba(56, 105, 183, 0.24), transparent 40%),
    rgba(1, 3, 7, 0.88);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.canvas-wrap {
  width: 100%;
  height: 100%;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  background: transparent;
}

#status {
  grid-column: 1 / span 2;
  grid-row: 11;
  min-width: 0;
  align-self: stretch;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  padding: 0;
  border-radius: 14px;
  font-size: 13px;
}

#challengeInfo,
#roundInfo,
#levelInfo,
#buildings,
#asteroids {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  border-radius: 10px;
  background: rgba(10, 18, 32, 0.82);
  backdrop-filter: blur(8px);
  color: #e8f1ff;
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
}

.control-button {
  grid-column: 3;
  grid-row: 11;
  align-self: stretch;
  width: 100%;
  min-height: 0;
  padding: 0 18px;
  border: 1px solid rgba(154, 196, 255, 0.35);
  border-radius: 14px;
  background: rgba(7, 11, 20, 0.8);
  color: inherit;
  cursor: pointer;
}

.overlay {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(2, 5, 10, 0.72);
  backdrop-filter: blur(10px);
  z-index: 5;
}

.overlay.visible {
  display: flex;
}

.overlay-panel {
  width: min(420px, calc(100vw - 32px));
  padding: 28px;
  border: 1px solid rgba(154, 196, 255, 0.24);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(14, 22, 38, 0.98), rgba(8, 13, 24, 0.96));
  text-align: center;
  box-shadow: 0 16px 60px rgba(0, 0, 0, 0.35);
}

.overlay-kicker {
  margin: 0 0 12px;
  color: #8cb8ff;
  font-size: 13px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.overlay-panel h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 48px);
}

.overlay-panel p {
  margin: 16px 0 0;
  font-size: 18px;
  line-height: 1.45;
}

.setup-controls {
  display: grid;
  gap: 12px;
  margin-top: 20px;
  text-align: left;
}

.setup-field {
  display: grid;
  gap: 6px;
  font-size: 14px;
}

.setup-field span {
  color: #a7c6ff;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.setup-field select,
.setup-field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid rgba(84, 121, 175, 0.45);
  border-radius: 10px;
  background: linear-gradient(180deg, #eef6ff 0%, #d5e7ff 100%);
  color: #07111f;
  font-weight: 700;
}

.setup-field select:focus-visible,
.setup-field input:focus-visible {
  outline: 2px solid rgba(145, 193, 255, 0.8);
  outline-offset: 2px;
}

.setup-field select option {
  color: #07111f;
  background: #eef6ff;
}

.setup-description {
  margin: 0;
  color: #d3e3ff;
  font-size: 14px;
}

.setup-stack {
  display: grid;
  gap: 10px;
}

.setup-footer {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 4px;
}

.compact-field span {
  font-size: 12px;
}

.overlay-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.overlay-button {
  padding: 12px 24px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(180deg, #91c1ff 0%, #4d89dc 100%);
  color: #07111f;
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
}

.overlay-button-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: #f3f7ff;
  border: 1px solid rgba(154, 196, 255, 0.35);
}

.hall-of-fame-panel {
  width: min(520px, calc(100vw - 24px));
}

.hall-of-fame-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  max-height: min(55vh, 420px);
  overflow: auto;
}

.hall-of-fame-entry {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(154, 196, 255, 0.24);
  background: rgba(11, 18, 31, 0.78);
  text-align: left;
}

.hall-of-fame-entry strong,
.hall-of-fame-entry span {
  display: block;
}

.hall-of-fame-entry span {
  margin-top: 4px;
  color: #c9dcff;
  font-size: 14px;
}

.hall-of-fame-empty {
  padding: 18px;
  border-radius: 14px;
  background: rgba(11, 18, 31, 0.78);
  color: #d3e3ff;
}

@media (max-width: 900px) {
  .game-shell {
    grid-template-columns: 80px 1fr 80px;
    gap: 8px;
    padding: 8px;
  }

  .answer-button {
    border-radius: 10px;
    font-size: 18px;
  }

  #status {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    font-size: 12px;
  }

  #challengeInfo {
    grid-column: 1 / -1;
  }

  .overlay-panel {
    padding: 24px 18px;
  }

  .setup-footer,
  .overlay-actions {
    grid-template-columns: 1fr;
  }
}