:root {
  color-scheme: dark;
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  background: #090d1a;
  color: #f7f2e7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% 0%, rgba(68, 56, 92, 0.42), transparent 42rem),
    #090d1a;
}

main {
  width: min(100% - 2rem, 760px);
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  min-height: 56px;
  padding: 0.15rem;
  border-radius: 14px;
  color: #e2c77f;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 160ms ease, color 160ms ease;
}

.brand img { width: 52px; height: 52px; border-radius: 12px; }
.brand:hover { opacity: 0.85; color: #f0d792; }
.brand:focus-visible { outline: 2px solid #d8b56d; outline-offset: 4px; }
.brand-text { display: block; }
.brand-ja { display: block; }
.brand-en { display: block; margin-top: 0.15rem; color: rgba(247, 242, 231, 0.58); font-size: 0.68rem; font-weight: 500; letter-spacing: 0.04em; }

article {
  margin-top: 2rem;
  padding: clamp(1.5rem, 5vw, 3rem);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
}

.eyebrow {
  margin: 0;
  color: #d8b56d;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

h1 { margin: 0.8rem 0 0; font-family: Georgia, "Yu Mincho", serif; font-size: clamp(2rem, 7vw, 3.25rem); line-height: 1.25; }
h2 { margin: 2.25rem 0 0.75rem; font-family: Georgia, "Yu Mincho", serif; font-size: 1.35rem; }
p { margin: 1rem 0 0; color: rgba(247, 242, 231, 0.78); line-height: 2; }
a { color: #e2c77f; overflow-wrap: anywhere; }

.notice {
  margin-top: 2rem;
  padding-left: 1rem;
  border-left: 2px solid rgba(216, 181, 109, 0.55);
  color: rgba(247, 242, 231, 0.62);
  font-size: 0.86rem;
}

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border: 1px solid rgba(216, 181, 109, 0.55);
  border-radius: 999px;
  color: #e2c77f;
  text-decoration: none;
}
.button.primary { background: #d8b56d; color: #111522; font-weight: 700; }

footer { margin-top: 2rem; color: rgba(247, 242, 231, 0.46); font-size: 0.75rem; line-height: 1.8; }