:root {
  --bg: #090b10;
  --panel: #121821;
  --surface: #1f2937;
  --text: #f8f4e6;
  --muted: #99a0b1;
  --accent: #d6b24c;
  --accent-dark: #a27c2c;
  --green: #5abf6a;
  --yellow: #d4a72c;
  --grey: #4b5563;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, rgba(214,178,76,0.18), transparent 28%),
              radial-gradient(circle at bottom right, rgba(194,132,20,0.16), transparent 25%),
              linear-gradient(180deg, #0a0f16 0%, #111720 38%, #151b29 100%);
}

.app-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.hero {
  padding: 32px;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 24px;
  background: rgba(17, 24, 39, 0.9);
  box-shadow: 0 20px 80px rgba(0,0,0,0.25);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.26em;
  font-size: 0.82rem;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2.5rem, 4vw, 4rem);
  line-height: 1.02;
}

.subtitle,
.description {
  margin: 0 0 10px;
  max-width: 860px;
  line-height: 1.75;
  color: var(--muted);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 10px;
}

.chip {
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text);
  font-size: 0.95rem;
}

.game-panel {
  display: grid;
  gap: 22px;
}

.board {
  display: grid;
  grid-template-columns: repeat(5, minmax(64px, 1fr));
  gap: 12px;
  justify-items: center;
}

.tile {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  border: 2px solid rgba(255,255,255,0.08);
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text);
  background: rgba(255,255,255,0.03);
}

.tile.filled {
  border-color: rgba(255,255,255,0.14);
}

.tile.correct {
  background: var(--green);
  border-color: rgba(90,191,106,0.95);
  color: #081008;
}

.tile.present {
  background: var(--yellow);
  border-color: rgba(212,167,44,0.95);
  color: #111;
}

.tile.absent {
  background: var(--grey);
  border-color: rgba(75,85,99,0.95);
  color: #e2e8f0;
}

.keyboard {
  display: grid;
  gap: 10px;
}

.keyboard-row {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.key {
  min-width: 42px;
  padding: 12px 14px;
  border-radius: 12px;
  border: none;
  background: rgba(255,255,255,0.08);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease;
}

.key:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,0.14);
}

.key.wide {
  min-width: 72px;
}

.key.correct {
  background: var(--green);
  color: #081008;
}

.key.present {
  background: var(--yellow);
  color: #111;
}

.key.absent {
  background: var(--grey);
  color: #e2e8f0;
}

.message-container {
  min-height: 48px;
  display: grid;
  place-items: center;
  color: var(--text);
  font-weight: 600;
  text-align: center;
}

.tip-box {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--muted);
}

.tip-box h2 {
  margin-top: 0;
  color: var(--text);
}

.tip-box ul {
  margin: 12px 0 0 18px;
}

.footer {
  margin-top: 32px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 680px) {
  .board {
    grid-template-columns: repeat(5, minmax(52px, 1fr));
    gap: 8px;
  }
  .tile {
    width: 52px;
    height: 52px;
    font-size: 1.2rem;
  }
  .keyboard {
    gap: 8px;
  }
  .key {
    min-width: 36px;
    padding: 10px 12px;
  }
}