:root { --brand: #00313c; --brand-text: #fff; --bg: #f4f5f6; --text: #1b1b1b; }
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text); display: flex; justify-content: center; padding: 16px; }
.card { width: 100%; max-width: 480px; background: #fff; border-radius: 12px; padding: 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,.08); }
.logo { display: block; max-width: 180px; max-height: 80px; margin: 0 auto 16px; }
h1 { font-size: 1.5rem; margin: 0 0 8px; text-align: center; }
.intro { text-align: center; margin: 0 0 16px; }
.terms { max-height: 40vh; overflow-y: auto; border: 1px solid #ddd; border-radius: 8px;
  padding: 12px; font-size: .875rem; line-height: 1.45; margin-bottom: 16px; }
.terms h2 { font-size: 1rem; margin: 12px 0 4px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .95rem; margin-bottom: 16px; }
.check input { width: 22px; height: 22px; flex: none; margin-top: 1px; }
a { color: var(--brand); }
button { width: 100%; padding: 14px; font-size: 1.05rem; font-weight: 600; border: 0; border-radius: 8px;
  background: var(--brand); color: var(--brand-text); cursor: pointer; }
button:disabled { opacity: .45; cursor: not-allowed; }
.status { min-height: 1.2em; text-align: center; font-size: .9rem; margin: 12px 0 0; }
.status.error { color: #b00020; }