* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0f172a;
  --card: #1e293b;
  --primary: #6366f1;
  --accent: #22d3ee;
  --text: #e2e8f0;
  --muted: #94a3b8;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(160deg, #0f172a 0%, #111827 100%);
  min-height: 100vh;
  color: var(--text);
  padding: 3rem 1.5rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: 1000px;
  margin: 0 auto;
}

.stat-card {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  padding: 2.5rem 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(99, 102, 241, 0.18);
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.stat-value {
  font-size: 2.75rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.stat-label {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.manual {
  max-width: 420px;
  margin: 4rem auto 0;
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 18px;
  padding: 2.5rem;
  text-align: center;
}

.manual h2 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--text);
}

.counter-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.counter-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.35);
  transition: transform 0.15s ease, filter 0.15s ease;
}

.counter-btn:hover {
  transform: scale(1.08);
  filter: brightness(1.1);
}

.counter-btn:active {
  transform: scale(0.95);
}

.manual-count {
  font-size: 3.5rem;
  font-weight: 800;
  min-width: 3ch;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.counter-controls {
  margin-top: 1.5rem;
}

.reset-btn {
  border: 1px solid var(--muted);
  background: transparent;
  color: var(--muted);
  padding: 0.6rem 1.8rem;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}

.reset-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

@media (max-width: 600px) {
  .stat-value {
    font-size: 2.25rem;
  }

  .manual {
    padding: 2rem 1.5rem;
  }
}