:root {
  --bg: #ffffff;
  --fg: #0f172a;
  --muted: #475569;
  --card: #f8fafc;
  --border: #e2e8f0;
  --shadow: 0 2px 10px rgba(2, 6, 23, 0.06);
  --accent: #4f46e5;
  --accent-fg: #ffffff;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Noto Sans JP, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in oklab, var(--bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 0;
}
.logo {
  font-weight: 700;
  letter-spacing: 0.2px;
  text-decoration: none;
  color: var(--fg);
}
.nav { margin-left: auto; display: flex; gap: 1rem; }
.nav a { color: var(--muted); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--fg); }

/* Hero */
.hero { border-bottom: 1px solid var(--border); }
.hero-inner {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 2rem; align-items: center; padding: 2.5rem 0;
}
.hero-title { font-size: clamp(1.8rem, 3vw, 2.5rem); margin: 0 0 0.5rem; }
.hero-tagline { color: var(--muted); margin: 0 0 1rem; }
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.hero-media { aspect-ratio: 16/9; border-radius: 14px; background: linear-gradient(135deg, color-mix(in oklab, var(--accent) 30%, transparent), var(--card)); box-shadow: var(--shadow); }

/* Sections */
.section { padding: 2.5rem 0; }
.section-title { margin: 0 0 1rem; font-size: 1.25rem; }

/* Games grid */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.card-media { aspect-ratio: 16/9; background: linear-gradient(135deg, color-mix(in oklab, var(--accent) 20%, transparent), var(--card)); }
.card-body { padding: 0.9rem; display: grid; gap: 0.5rem; }
.card-title { margin: 0; font-weight: 700; }
.card-tagline { margin: 0; color: var(--muted); }
.chips { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.chip { border: 1px solid var(--border); padding: 0.15rem 0.5rem; border-radius: 999px; color: var(--muted); font-size: 0.85rem; }
.actions { margin-top: 0.25rem; display: flex; gap: 0.4rem; flex-wrap: wrap; }
.btn { appearance: none; border: 1px solid var(--border); background: var(--bg); color: var(--fg); padding: 0.45rem 0.7rem; border-radius: 10px; text-decoration: none; font-weight: 600; }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: color-mix(in oklab, var(--accent) 50%, black 10%); }
.btn:hover { filter: brightness(1.05); }

/* About */
.about p { margin: 0 0 0.6rem; }
.about-profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: center;
}
.about-profile-text {
  max-width: 640px;
  text-align: left;
}
.avatar-frame {
  width: clamp(130px, 50vw, 200px); /* scale slightly on smaller screens */
  aspect-ratio: 1 / 1;
  /*border: 2px dashed var(--border);*/
  border-radius: 28px;
  background: var(--card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-weight: 600;
  text-align: center;
  padding: 1rem;
}
.avatar-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain; /* avoid cutting off the logo on mobile */
  border-radius: inherit;
}
.social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 0.75rem;
}
.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  color: var(--fg);
  font-weight: 600;
}
.social-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Footer */
.site-footer { border-top: 1px solid var(--border); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0; color: var(--muted); }
.footer-inner a { color: var(--muted); text-decoration: none; }
.footer-inner a:hover { color: var(--fg); }

/* Responsive */
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
}