:root {
  --bg: #fafafa;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e5e7eb;
  --accent: #6366f1;
}

/* Global reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Header */
.header {
  text-align: center;
  padding: 4rem 1rem 2rem;
}

.header h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

.header p {
  margin-top: 0.5rem;
  color: var(--muted);
}

/* Layout */
.container {
  max-width: 1100px;
  margin: auto;
  padding: 2rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

/* Cards */
.card {
  position: relative;
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.25s ease;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

/* Card text */
.card h2 {
  font-size: 1.2rem;
}

.card p {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Placeholder */
.placeholder {
  opacity: 0.6;
  pointer-events: none;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* =========================
   Bingo Blitz Card
   ========================= */

.bingo-blitz {
  border: 1px solid #020617; /* crisp black border */
}

.bingo-blitz::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/images/bingo-blitz.jpg");
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  z-index: 0;
}

.bingo-blitz h2,
.bingo-blitz p {
  position: relative;
  z-index: 1;
  color: #020617;
  text-shadow: 0 1px 2px rgba(255, 255, 255, 0.6);
}

.bingo-blitz:hover {
  box-shadow: 0 10px 28px rgba(2, 6, 23, 0.2);
}