:root {
  color-scheme: dark;
  --bg: #0a0d14;
  --panel: rgba(18, 23, 36, 0.84);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text: #f5f7fb;
  --muted: #b7c0d6;
  --tile: #121826;
  --tile-border: #2a3447;
  --correct: #4caf6a;
  --present: #c59d36;
  --absent: #3a4254;
  --accent: #8fb8ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(143, 184, 255, 0.14), transparent 40%),
    radial-gradient(circle at 80% 20%, rgba(197, 157, 54, 0.14), transparent 28%),
    linear-gradient(160deg, #070910, #0b1220 55%, #070910);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px 40px;
  gap: 24px;
}

.hero {
  width: min(680px, 100%);
  text-align: center;
  animation: rise 520ms ease-out both;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.78rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(2.7rem, 9vw, 5.5rem);
  line-height: 0.9;
  letter-spacing: 0.16em;
  text-indent: 0.16em;
}

.subtitle {
  margin: 12px auto 0;
  max-width: 44rem;
  color: var(--muted);
  font-size: 1rem;
}

.game-card {
  width: min(680px, 100%);
  padding: 24px;
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  animation: rise 620ms ease-out 80ms both;
}

.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.message {
  margin: 0;
  color: var(--muted);
  min-height: 1.4em;
}

.ghost-button {
  appearance: none;
  border: 1px solid var(--tile-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 16px;
  font: inherit;
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.ghost-button:hover {
  transform: translateY(-1px);
  border-color: rgba(143, 184, 255, 0.55);
  background: rgba(143, 184, 255, 0.08);
}

.board {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
}

.row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.tile {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid var(--tile-border);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  color: var(--text);
  font-size: clamp(1.7rem, 5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}

.tile.filled {
  border-color: rgba(143, 184, 255, 0.35);
}

.tile.pop {
  transform: scale(1.04);
}

.tile.correct {
  background: var(--correct);
  border-color: var(--correct);
}

.tile.present {
  background: var(--present);
  border-color: var(--present);
}

.tile.absent {
  background: var(--absent);
  border-color: var(--absent);
}

.keyboard {
  display: grid;
  gap: 8px;
}

.keyboard-row {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(var(--keys, 10), minmax(0, 1fr));
}

.key {
  width: 100%;
  min-width: 0;
  padding: 14px 8px;
  border: 1px solid var(--tile-border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font: inherit;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.key.wide {
  font-size: 0.86rem;
}

.key:hover {
  transform: translateY(-1px);
  border-color: rgba(143, 184, 255, 0.55);
}

.key.correct {
  background: var(--correct);
  border-color: var(--correct);
}

.key.present {
  background: var(--present);
  border-color: var(--present);
}

.key.absent {
  background: var(--absent);
  border-color: var(--absent);
}

.results {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(5, 8, 14, 0.78);
  backdrop-filter: blur(18px);
}

.results[hidden] {
  display: none;
}

.results-card {
  width: min(480px, 100%);
  padding: 24px;
  border: 1px solid var(--panel-border);
  border-radius: 26px;
  background: rgba(18, 23, 36, 0.96);
  box-shadow: var(--shadow);
}

.results-card h2 {
  margin: 6px 0 10px;
  font-size: clamp(1.8rem, 5vw, 2.5rem);
}

.results-copy {
  margin: 0 0 18px;
  color: var(--muted);
  min-height: 1.5em;
}

.results-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.results-stats div {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--tile-border);
}

.stat-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.results-stats strong {
  font-size: 1.8rem;
}

.results-actions {
  display: grid;
  gap: 10px;
}

.primary-button {
  appearance: none;
  border: 1px solid rgba(143, 184, 255, 0.45);
  background: linear-gradient(180deg, rgba(143, 184, 255, 0.24), rgba(143, 184, 255, 0.12));
  color: var(--text);
  border-radius: 999px;
  padding: 12px 16px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.primary-button:hover {
  transform: translateY(-1px);
  border-color: rgba(143, 184, 255, 0.8);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  .game-card {
    padding: 18px;
    border-radius: 22px;
  }

  .status-row {
    flex-direction: column;
    align-items: stretch;
  }

  .ghost-button {
    width: 100%;
  }

  .keyboard-row {
    gap: 6px;
  }

  .key {
    padding: 12px 4px;
    border-radius: 10px;
  }

  .results-card {
    padding: 18px;
    border-radius: 22px;
  }

  .results-stats {
    grid-template-columns: 1fr;
  }
}