:root {
  color-scheme: dark;
  --bg: #050914;
  --panel: rgba(9, 18, 34, 0.78);
  --panel-strong: rgba(12, 24, 44, 0.92);
  --line: rgba(174, 218, 255, 0.18);
  --text: #ecfeff;
  --muted: #9fb6c9;
  --soft: #c8e6f7;
  --cyan: #36d7ff;
  --green: #86efac;
  --amber: #facc15;
  --rose: #fb7185;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(54, 215, 255, 0.2), transparent 28rem),
    radial-gradient(circle at 82% 18%, rgba(183, 140, 255, 0.18), transparent 30rem),
    linear-gradient(135deg, #050914 0%, #0b1221 54%, #101724 100%);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  overflow-x: hidden;
}

button {
  border: 0;
  border-radius: 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  transition:
    transform 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease,
    opacity 160ms ease;
}

button:hover:not(:disabled),
button:focus-visible:not(:disabled) {
  background: rgba(54, 215, 255, 0.16);
  box-shadow:
    inset 0 0 0 1px rgba(54, 215, 255, 0.42),
    0 12px 36px rgba(54, 215, 255, 0.14);
  outline: none;
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.app-shell {
  width: min(1480px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 36px;
}

.hero-panel,
.hud-panel,
.canvas-wrap {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.hero-panel {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
  padding: 24px;
  border-radius: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: #7dd3fc;
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 10px;
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  line-height: 0.94;
  letter-spacing: -0.07em;
}

h2 {
  margin-bottom: 10px;
  font-size: clamp(1.35rem, 2vw, 2.2rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.lede {
  max-width: 780px;
  margin-bottom: 0;
  color: var(--soft);
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  line-height: 1.58;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(112px, 1fr));
  gap: 10px;
  min-width: min(340px, 100%);
}

.hero-meta > div,
.stat-card,
.hint-card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.055);
}

.hero-meta > div {
  display: grid;
  align-content: center;
  padding: 16px;
}

.hero-meta span,
.stat-card span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-meta strong {
  margin-top: 7px;
  font-size: 1.55rem;
}

#gameStatus[data-status="playing"] {
  color: var(--green);
}

#gameStatus[data-status="paused"] {
  color: var(--amber);
}

#gameStatus[data-status="results"] {
  color: #f0abfc;
}

.game-grid {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
}

.hud-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 18px;
  border-radius: 28px;
}

.stat-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stat-card {
  min-height: 86px;
  padding: 13px 14px;
}

.stat-card strong {
  display: block;
  margin-top: 7px;
  font-size: 1.55rem;
  letter-spacing: -0.04em;
}

.stat-card--primary {
  background: linear-gradient(145deg, rgba(54, 215, 255, 0.18), rgba(134, 239, 172, 0.08));
}

.score-track {
  height: 5px;
  margin-top: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
}

.score-track i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--cyan), var(--green), var(--amber));
  transition: width 220ms ease;
}

.message {
  min-height: 68px;
  padding: 15px;
  border: 1px solid rgba(125, 211, 252, 0.28);
  border-radius: 18px;
  background: rgba(14, 165, 233, 0.1);
  color: #dff7ff;
  font-weight: 700;
  line-height: 1.38;
}

.message[data-tone="success"] {
  border-color: rgba(134, 239, 172, 0.35);
  background: rgba(34, 197, 94, 0.12);
}

.message[data-tone="warning"] {
  border-color: rgba(251, 113, 133, 0.38);
  background: rgba(251, 113, 133, 0.12);
}

.message.is-dimmed {
  opacity: 0.72;
}

.toolbox {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.toolbox button,
.control-row button {
  min-height: 46px;
  padding: 10px 12px;
  text-align: left;
}

.toolbox button span {
  display: inline-grid;
  width: 22px;
  height: 22px;
  margin-right: 6px;
  place-items: center;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  color: #a5f3fc;
  font-size: 0.78rem;
}

.toolbox button.is-active {
  background: linear-gradient(145deg, rgba(54, 215, 255, 0.24), rgba(134, 239, 172, 0.13));
  box-shadow:
    inset 0 0 0 1px rgba(125, 211, 252, 0.58),
    0 18px 36px rgba(14, 165, 233, 0.14);
}

.control-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.hint-card {
  padding: 16px;
  color: var(--soft);
}

.hint-card h2 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.hint-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.5;
}

.canvas-wrap {
  position: relative;
  min-height: clamp(520px, 68vw, 820px);
  overflow: hidden;
  border-radius: 30px;
  background: #08111f;
}

.canvas-wrap::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), transparent 17%),
    radial-gradient(circle at 50% 100%, rgba(54, 215, 255, 0.12), transparent 36%);
}

.canvas-wrap.is-paused::before {
  position: absolute;
  z-index: 3;
  top: 18px;
  left: 50%;
  padding: 9px 14px;
  border: 1px solid rgba(250, 204, 21, 0.38);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.86);
  color: var(--amber);
  content: "Paused";
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transform: translateX(-50%);
}

#gameCanvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: inherit;
  cursor: crosshair;
  touch-action: none;
}

.screen-card {
  position: absolute;
  z-index: 5;
  top: 50%;
  left: 50%;
  width: min(560px, calc(100% - 40px));
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 28px;
  background:
    linear-gradient(145deg, rgba(12, 24, 44, 0.94), rgba(8, 13, 24, 0.91)),
    radial-gradient(circle at top left, rgba(54, 215, 255, 0.22), transparent 18rem);
  box-shadow: 0 32px 120px rgba(0, 0, 0, 0.56);
  transform: translate(-50%, -50%);
}

.screen-card[hidden] {
  display: none;
}

.screen-card p {
  color: var(--soft);
  line-height: 1.56;
}

.primary-action {
  width: 100%;
  min-height: 56px;
  margin-top: 8px;
  background: linear-gradient(135deg, #38bdf8, #22c55e);
  color: #03131c;
  box-shadow:
    0 18px 44px rgba(34, 197, 94, 0.18),
    inset 0 0 0 1px rgba(255, 255, 255, 0.3);
  text-align: center;
}

.screen-card--results {
  text-align: center;
}

@media (max-width: 1080px) {
  .hero-panel,
  .game-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    display: grid;
  }

  .hud-panel {
    order: 2;
  }

  .canvas-wrap {
    min-height: min(70vh, 680px);
  }
}

@media (max-width: 700px) {
  .app-shell {
    width: min(100% - 18px, 1480px);
    padding-top: 9px;
  }

  .hero-panel,
  .hud-panel,
  .canvas-wrap {
    border-radius: 22px;
  }

  .hero-panel {
    padding: 18px;
  }

  .hero-meta,
  .stat-group,
  .toolbox,
  .control-row {
    grid-template-columns: 1fr;
  }

  .canvas-wrap {
    min-height: 520px;
  }
}