:root {
  --bg: #0e1322;
  --bg-grad: radial-gradient(120% 90% at 50% 0%, #1a2240 0%, #0e1322 55%, #080c18 100%);
  --card: rgba(20, 26, 48, 0.78);
  --card-edge: rgba(255, 255, 255, 0.06);
  --ink: #e9ecf5;
  --ink-dim: #9aa3bd;
  --accent: #7aa2ff;
  --accent-glow: rgba(122, 162, 255, 0.35);
  --field: rgba(8, 12, 24, 0.6);
  --field-edge: rgba(255, 255, 255, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6), 0 10px 20px -10px rgba(0, 0, 0, 0.5);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  background-image: var(--bg-grad);
  background-attachment: fixed;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.card {
  width: min(480px, 100%);
  background: var(--card);
  border: 1px solid var(--card-edge);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  text-align: center;
}
.title {
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--ink);
}
.counter {
  font-size: 48px;
  margin: 12px 0;
}
.action {
  appearance: none;
  border: 1px solid var(--field-edge);
  background: var(--field);
  color: var(--ink);
  padding: 9px 14px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 120ms ease;
}
.action:hover { border-color: rgba(122, 162, 255, 0.4); background: rgba(122, 162, 255, 0.08); }
.action:active { transform: translateY(1px); }