*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0f0f0f;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #ff39ba;
}

.game {
  background: #1b0a25;
  padding: 1.5rem;
  border-radius: 1rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
  width: min(95vw, 420px);
}

h1 {
  margin: 0 0 1rem;
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 1.4rem;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.stat {
  font-weight: 600;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-weight: 600;
  font-size: 0.9rem;
  background: #0fe0e4;
  color: #111827;
  cursor: pointer;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.6);
  transition: transform 0.05s ease, box-shadow 0.05s ease, filter 0.1s ease;
}

.btn:hover {
  filter: brightness(1.05);
}

.btn:active {
  transform: translateY(1px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.7);
}

.btn:focus-visible {
  outline: 2px solid #facc15;
  outline-offset: 2px;
}

.message {
  min-height: 1.5rem;
  text-align: center;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  color: #15d415;
}

.board {
  display: grid;
  gap: 3px;
  justify-content: center;
  user-select: none;
}

/* Cell styles */

.cell {
  width: 32px;
  height: 32px;
  border-radius: 0px;
  border: none;
  padding: 0;
  background: #4b5563;
  box-shadow: 0 3px 0 #020617;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #e5e7eb;
  transition: background 0.1s ease, transform 0.05s ease, box-shadow 0.05s ease, filter 0.1s ease;
}

.cell:hover {
  filter: brightness(1.2);
}

.cell:active {
  transform: translateY(1px);
  box-shadow: 0 1px 0 #020617;
}

.cell:focus-visible {
  outline: 2px solid #facc15;
  outline-offset: 1px;
}

.cell.revealed {
  background: #1b0a25;
  box-shadow: none;
  cursor: default;
}

.cell.revealed:hover {
  filter: none;
}

/* Mines & flags */

.cell.mine {
  background: rgb(147, 75, 192);
  color: #fef2f2;
}

.cell.flagged {
  background: #0fe0e4;
  color: #e5e7eb;
}

/* Number colors */

.cell.m1 {
  color: #00eaff;   /* Neon cyan */
}

.cell.m2 {
  color: #39ff14;   /* Laser green */
}

.cell.m3 {
  color: #ff005e;   /* Hot neon magenta-red */
}

.cell.m4 {
  color: #9d4bff;   /* Electric purple */
}

.cell.m5 {
  color: #ff9f00;   /* Neon amber/orange */
}

.cell.m6 {
  color: #00ffbf;   /* Aqua-mint neon */
}

.cell.m7 {
  color: #ff00d4;   /* Bright neon pink/violet */
}

.cell.m8 {
  color: #7affff;   /* Pastel-neon cyan */
}


/* Small screens */

@media (max-width: 400px) {
  .game {
    padding: 1.1rem;
  }

  .cell {
    width: 28px;
    height: 28px;
    font-size: 0.9rem;
  }
}