/* ===== DEMO SHARED BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: 'Noto Sans JP', sans-serif; overflow-x: hidden; line-height: 1.7; word-break: keep-all; }
h1,h2,h3,h4 { text-wrap: balance; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== DEMO BADGE ===== */
.demo-badge {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(8,8,8,0.9);
  border: 1px solid rgba(255,255,255,0.15);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 50px;
  z-index: 999;
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.3px;
}
.demo-badge span { color: #c8ff00; }
.demo-badge a { text-decoration: none; color: inherit; }

/* ===== REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s cubic-bezier(0.16,1,0.3,1), transform 0.8s cubic-bezier(0.16,1,0.3,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }