/* Landing page — deliberately plain */
.home {
  min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  max-width: 620px; margin: 0 auto; padding: 40px 24px;
}
.home h1 { margin: 0; font-size: clamp(30px, 6vw, 46px); letter-spacing: -.03em; line-height: 1.05; }
.home .sub { margin: 12px 0 40px; color: var(--text-secondary); font-size: 15px; }

.home-links { display: flex; flex-direction: column; gap: 1px; }
.home-links a {
  display: block; padding: 16px 4px; text-decoration: none; color: var(--text-primary);
  border-bottom: 1px solid var(--border); font-size: 18px;
}
.home-links a:first-child { border-top: 1px solid var(--border); }
.home-links a span { position: relative; }
.home-links a span::after {
  content: '→'; position: absolute; right: -26px; opacity: 0;
  transition: opacity .12s, transform .12s; transform: translateX(-4px);
}
.home-links a:hover { color: var(--series-1); }
.home-links a:hover span::after { opacity: 1; transform: translateX(0); }

.offer {
  margin: 34px 0 0; font-size: 13.5px; line-height: 1.6; color: var(--text-secondary);
}
.offer a { color: var(--series-1); }

.about-btn, .home-toggle {
  position: fixed; top: 20px; width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--border-strong); background: var(--surface-1);
  color: var(--text-secondary); font-size: 14px; cursor: pointer; line-height: 1; z-index: 5;
}
.about-btn { right: 60px; }
.home-toggle { right: 20px; }
.about-btn:hover, .home-toggle:hover { color: var(--text-primary); }

dialog#about-dialog {
  border: 1px solid var(--border-strong); border-radius: 12px; padding: 28px;
  background: var(--surface-1); color: var(--text-primary);
  max-width: 560px; width: calc(100% - 40px); box-shadow: var(--shadow);
}
dialog#about-dialog::backdrop { background: rgba(0,0,0,.5); }
dialog#about-dialog h2 { margin: 0 0 14px; font-size: 19px; }
dialog#about-dialog .close {
  position: absolute; top: 14px; right: 16px; border: 0; background: none;
  color: var(--text-muted); font-size: 16px; cursor: pointer;
}
.why {
  margin: 0 0 18px; padding: 12px 14px; border-left: 2px solid var(--series-2);
  background: var(--surface-2); border-radius: 0 8px 8px 0;
  font-size: 14px; color: var(--text-primary);
}
.about-nums { display: flex; flex-wrap: wrap; gap: 18px 26px; margin-bottom: 16px; }
.about-nums div .n { font-size: 20px; font-weight: 650; font-variant-numeric: tabular-nums; }
.about-nums div .l { font-size: 11.5px; color: var(--text-muted); }
.about-txt { margin: 0 0 12px; font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.about-src { margin: 16px 0 0; font-size: 11.5px; color: var(--text-muted); }