.home-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% -10%, rgba(198, 243, 107, 0.12), transparent 34rem),
    var(--page);
}

.home-topbar { border-bottom-color: rgba(255, 255, 255, 0.06); }
.home-version { color: var(--muted); font-size: 0.78rem; letter-spacing: 0.08em; }

.home-main {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(54px, 9vh, 104px) 0 44px;
}

.home-intro { max-width: 720px; margin-bottom: clamp(28px, 5vw, 48px); }
.home-intro h1 {
  margin: 0;
  max-width: 680px;
  font-size: clamp(2rem, 5vw, 4.1rem);
  line-height: 1.03;
  letter-spacing: -0.045em;
}
.home-intro > p:last-child {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 1.5vw, 1.08rem);
  line-height: 1.7;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 22px);
}

.mode-card {
  min-width: 0;
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 3vw, 30px);
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, var(--surface-raised), var(--surface));
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.24);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}
.mode-card:hover,
.mode-card:focus-visible {
  transform: translateY(-5px);
  border-color: var(--accent);
  background: linear-gradient(145deg, #263022, #192019);
  outline: none;
}
.mode-kind {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.mode-card strong {
  margin-top: auto;
  font-size: clamp(2.6rem, 5vw, 4.6rem);
  line-height: 1;
  letter-spacing: -0.06em;
}
.mode-card .analysis-symbol { font-family: "Segoe UI Symbol", serif; font-weight: 400; }
.mode-name { margin-top: 16px; font-size: 1.2rem; font-weight: 800; }
.mode-detail { margin-top: 8px; min-height: 2.8em; color: var(--muted); line-height: 1.45; }
.mode-action {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-weight: 700;
}
.home-note { margin: 24px 2px 0; color: var(--muted); font-size: 0.82rem; }

@media (max-width: 820px) {
  .home-main { padding-top: 44px; }
  .mode-grid { grid-template-columns: 1fr; }
  .mode-card { aspect-ratio: auto; min-height: 280px; }
}

@media (max-width: 520px) {
  .home-version { display: none; }
  .home-main { width: min(100% - 24px, 440px); padding-top: 32px; }
  .home-intro h1 { font-size: 2.45rem; }
  .mode-card { min-height: 250px; }
}