:root {
  --purple-950: #260036;
  --purple-900: #350047;
  --purple-700: #6f2da8;
  --purple-500: #9b59d0;
  --cream: #fffaf3;
  --white: #ffffff;
  --text: #2d2132;
  --muted: #6b5b70;
  --border: #eadff0;
  --shadow: 0 18px 50px rgba(48, 0, 65, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #fff 0%, var(--cream) 100%);
  color: var(--text);
  line-height: 1.7;
}

a { color: inherit; }

.site-header {
  background: var(--purple-950);
  color: var(--white);
  padding: 18px 24px;
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 8px 30px rgba(38,0,54,.15);
}

.header-inner {
  width: min(1080px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  font-weight: 900;
  text-decoration: none;
  letter-spacing: .02em;
  font-size: 1.05rem;
}

.back-link {
  text-decoration: none;
  border: 1px solid rgba(255,255,255,.35);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: .92rem;
}

.back-link:hover { background: rgba(255,255,255,.10); }

.hero {
  padding: 72px 24px 28px;
  text-align: center;
}

.hero span {
  display: inline-flex;
  background: #f2e8f8;
  color: var(--purple-700);
  font-weight: 800;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: .83rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 18px auto 10px;
  max-width: 780px;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.08;
  color: var(--purple-950);
}

.hero p {
  max-width: 720px;
  margin: 0 auto;
  color: var(--muted);
}

.content {
  width: min(900px, calc(100% - 32px));
  margin: 30px auto 80px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: clamp(26px, 5vw, 56px);
}

.content h2 {
  color: var(--purple-950);
  margin-top: 38px;
  line-height: 1.25;
}

.content h2:first-child { margin-top: 0; }

.content h3 {
  color: var(--purple-900);
  margin-top: 26px;
}

.content p, .content li { color: #4f4254; }

.content ul { padding-left: 22px; }

.notice {
  background: #f7f0fb;
  border-left: 4px solid var(--purple-500);
  padding: 16px 18px;
  border-radius: 12px;
  margin: 24px 0;
}

.contact-card {
  display: grid;
  gap: 14px;
  background: #faf6fc;
  border: 1px solid var(--border);
  padding: 22px;
  border-radius: 16px;
}

.contact-card a {
  color: var(--purple-700);
  font-weight: 800;
}

.site-footer {
  background: var(--purple-950);
  color: rgba(255,255,255,.82);
  text-align: center;
  padding: 28px 20px;
  font-size: .9rem;
}

.site-footer a { color: #fff; }

@media (max-width: 600px) {
  .site-header { padding: 14px 16px; }
  .back-link { padding: 7px 10px; }
  .hero { padding-top: 52px; }
}