:root {
  --ink: #29313b;
  --muted: #626b75;
  --paper: rgba(255, 255, 255, 0.93);
  --line: rgba(41, 49, 59, 0.14);
  --sky: #75c9e6;
  --leaf: #72d38d;
  --pink: #f690b6;
  --gold: #f6d26e;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(rgba(255, 255, 255, 0.74), rgba(255, 255, 255, 0.82)),
    url("../../res/images/backgrounds/Soda.png") center / cover fixed;
}

button,
a {
  font: inherit;
}

.game-shell {
  width: min(820px, calc(100% - 28px));
  margin: 0 auto;
  padding: 22px 0 34px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 26px;
}

.topbar a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
}

.eyebrow {
  margin: 0 0 8px;
  color: #2f8178;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: 4rem;
  line-height: 1;
}

.hero p:last-child {
  max-width: 650px;
  margin: 14px 0 18px;
  color: var(--muted);
  line-height: 1.7;
}

.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 40px rgba(41, 49, 59, 0.13);
}

.hud {
  display: grid;
  grid-template-columns: repeat(3, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  padding: 12px;
}

.hud span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
}

.hud strong {
  display: block;
  margin-top: 2px;
  font-size: 1.35rem;
}

.hud button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  padding: 0 16px;
  color: #24303a;
  background: linear-gradient(135deg, var(--gold), var(--leaf));
  font-weight: 900;
  cursor: pointer;
}

.hud button[aria-pressed="true"] {
  background: linear-gradient(135deg, var(--pink), var(--sky));
}

.board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
  width: min(100%, 620px);
  margin: 16px auto 0;
  padding: 8px;
  border-radius: 8px;
  background: rgba(117, 201, 230, 0.46);
  border: 1px solid var(--line);
  box-shadow: 0 20px 46px rgba(41, 49, 59, 0.16);
}

.cell {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  min-width: 0;
  border: 0;
  border-radius: 7px;
  background: linear-gradient(145deg, rgba(246, 210, 110, 0.95), rgba(246, 144, 182, 0.82));
  color: #27313c;
  font-weight: 900;
  cursor: pointer;
  user-select: none;
}

.cell.is-open {
  background: rgba(255, 255, 255, 0.82);
  cursor: default;
}

.cell.is-flagged {
  background: linear-gradient(145deg, rgba(117, 201, 230, 0.96), rgba(114, 211, 141, 0.88));
}

.cell.is-mine {
  background: linear-gradient(145deg, #ff9fa5, #f6d26e);
}

.message {
  margin-top: 16px;
  padding: 14px 16px;
  color: var(--muted);
  line-height: 1.6;
}

@media (max-width: 560px) {
  .hud {
    grid-template-columns: repeat(3, 1fr);
  }

  .hud button {
    grid-column: span 3;
  }

  .board {
    gap: 4px;
    padding: 6px;
  }

  h1 {
    font-size: 2.3rem;
  }
}