:root {
  --bg: #f4f6fb;
  --card-bg: #ffffff;
  --text: #1f2533;
  --text-soft: #6b7285;
  --accent: #4f6df5;
  --accent-dark: #3a54d6;
  --border: #dde2ee;
  --shadow: 0 8px 24px rgba(31, 37, 51, 0.08);
}

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

body {
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 40px 16px;
}

.portal {
  width: 100%;
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.portal-header {
  text-align: center;
}

.portal-header h1 {
  font-size: 2.4rem;
  letter-spacing: -0.02em;
}

.portal-sub {
  margin-top: 6px;
  color: var(--text-soft);
  font-size: 1rem;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.game-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  padding: 28px 18px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform 0.14s ease, box-shadow 0.14s ease, border-color 0.14s ease;
}

.game-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 12px 28px rgba(79, 109, 245, 0.2);
}

.game-emoji {
  font-size: 2.6rem;
  line-height: 1;
}

.game-name {
  font-size: 1.2rem;
  font-weight: 700;
}

.game-desc {
  font-size: 0.88rem;
  color: var(--text-soft);
}

.game-card.is-soon {
  opacity: 0.55;
  cursor: default;
  box-shadow: none;
  background: #eef1f7;
}

.game-card.is-soon:hover {
  transform: none;
  border-color: var(--border);
  box-shadow: none;
}