:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --text: #122130;
  --muted: #5a6a78;
  --line: #d7dde4;
  --accent: #1f5ea8;
  --accent-hover: #174b86;
  --shadow: 0 18px 40px -28px rgba(18, 33, 48, 0.5);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, #ffffff 0%, var(--bg) 60%);
  line-height: 1.6;
}

.page {
  width: min(760px, 92vw);
  margin: 0 auto;
  padding: 4.5rem 0 3rem;
}

.hero {
  margin-bottom: 2.5rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
}

.subtitle {
  margin: 0.8rem 0 1.5rem;
  font-size: 1.08rem;
  color: var(--muted);
}

.button {
  display: inline-block;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.button:hover,
.button:focus-visible {
  background: var(--accent-hover);
}

.card {
  padding: 1.3rem 1.4rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card + .card {
  margin-top: 1rem;
}

h2 {
  margin: 0 0 0.55rem;
  font-size: 1.2rem;
}

p {
  margin: 0;
}

.section-intro {
  color: var(--muted);
}

.game-list {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}

.game-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  background: #fbfcff;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.game-link:hover,
.game-link:focus-visible {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.game-title {
  font-weight: 600;
}

.game-note {
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 600px) {
  .page {
    padding-top: 3.2rem;
  }

  .card {
    padding: 1.1rem;
  }

  .game-link {
    align-items: flex-start;
    flex-direction: column;
  }
}
body::before {
  content: "";
  position: fixed;
  left: clamp(0.5rem, 2vw, 1.5rem);
  top: 50%;
  width: 56px;
  aspect-ratio: 1;
  transform: translateY(-50%);
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #8cff9b 0%, #2cbf4b 55%, #16913a 100%);
  box-shadow: 0 10px 24px rgba(22, 145, 58, 0.35);
  pointer-events: none;
}

@media (max-width: 600px) {
  body::before {
    width: 38px;
    left: 0.4rem;
  }
}