:root {
  --void: #07090d;
  --ink: #e7ecf2;
  --mute: #8a93a0;
  --line: color-mix(in srgb, var(--ink) 14%, transparent);
  --pass: #10141b;
  --stripe: #7aa2ff;
  --error: #e07078;
  --ok: #6fcaa0;
  --display: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", "Times New Roman", serif;
  --ui: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--ui);
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(122, 162, 255, 0.05) 0%, transparent 28%),
    var(--void);
}
a { color: var(--ink); }
a:hover { color: #fff; }
.wrap {
  flex: 1 0 auto;
  width: 100%;
  max-width: 42rem;
  margin: 0 auto;
  padding: 2.75rem 1.25rem 2rem;
}
.wrap-legal { max-width: 46rem; }
.page-gate .wrap {
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 26.5rem;
  padding: 12vh 1.25rem 2rem;
}
.pass {
  position: relative;
  padding: 0 0 0 1.35rem;
}
.pass::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2rem;
  bottom: 0.2rem;
  width: 2px;
  background: var(--stripe);
}
.kicker {
  font-family: var(--ui);
  letter-spacing: 0.22em;
  font-size: 0.68rem;
  color: var(--stripe);
  margin: 0 0 0.7rem;
  font-weight: 600;
}
.brand {
  font-family: var(--display);
  font-size: clamp(1.85rem, 5.5vw, 2.55rem);
  font-weight: 500;
  margin: 0 0 0.85rem;
  line-height: 1.25;
  letter-spacing: 0.01em;
}
.lead, .muted, .hint { color: var(--mute); line-height: 1.7; }
.lead { margin: 0 0 1.6rem; font-size: 0.95rem; }
.hint {
  margin: 1.1rem 0 0;
  font-size: 0.8rem;
}
.section-title {
  margin: 2rem 0 0.7rem;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 600;
}
.panel {
  background: var(--pass);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 1.15rem 1.2rem;
  margin-bottom: 0.75rem;
}
.panel h2, .panel h3 {
  font-family: var(--display);
  font-weight: 500;
  margin: 0 0 0.45rem;
}
.stack { display: grid; gap: 0.75rem; }
input {
  width: 100%;
  padding: 0.72rem 0.85rem;
  border-radius: 2px;
  border: 1px solid var(--line);
  background: #0a0d12;
  color: var(--ink);
  font-family: inherit;
}
input:focus {
  outline: 1px solid var(--stripe);
  border-color: var(--stripe);
}
.btn {
  appearance: none;
  border: 0;
  border-radius: 2px;
  padding: 0.75rem 1.15rem;
  background: var(--ink);
  color: var(--void);
  font-weight: 650;
  font-family: inherit;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.06); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn-google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  background: #f4f6f8;
  color: #1f1f1f;
  font-weight: 600;
}
.btn-google:hover { filter: none; background: #fff; }
.btn-google-icon { display: block; flex: 0 0 auto; }
.msg { padding: 0.65rem 0.8rem; border-radius: 2px; margin: 0 0 1rem; }
.msg-error { background: color-mix(in srgb, var(--error) 18%, transparent); color: #ffd0d3; }
.msg-ok { background: color-mix(in srgb, var(--ok) 16%, transparent); color: #d5f6e4; }
.meta { display: grid; grid-template-columns: 8rem 1fr; gap: 0.4rem 0.8rem; margin: 0; }
.meta dt { color: var(--mute); }
.meta dd { margin: 0; }
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.chip {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
  font-size: 0.85rem;
}
.actions {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.site-footer {
  flex: 0 0 auto;
  width: 100%;
  max-width: 46rem;
  margin: auto auto 0;
  padding: 0.9rem 1.25rem 1.35rem;
  color: var(--mute);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  display: flex;
  justify-content: center;
  gap: 0.8rem;
}
.site-footer a {
  color: color-mix(in srgb, var(--mute) 80%, transparent);
  text-decoration: none;
}
.site-footer a:hover { color: var(--mute); text-decoration: underline; }
.page-gate .site-footer { padding-bottom: 1.6rem; }
.toc ol { margin: 0.4rem 0 0; padding-left: 1.2rem; line-height: 1.7; }
.toc a { color: var(--ink); }
.legal section { margin: 1.6rem 0; }
.legal h2 {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 500;
  margin: 0 0 0.6rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--line);
}
.legal h3 { font-size: 1rem; margin: 1rem 0 0.4rem; }
.legal p, .legal li { line-height: 1.75; }
.legal ul { padding-left: 1.2rem; }
.rule {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 3rem 0;
}
code {
  font-size: 0.9em;
  background: color-mix(in srgb, var(--ink) 8%, transparent);
  padding: 0.1rem 0.35rem;
  border-radius: 2px;
}
@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}