/**
 * Layout — Apple Glassmorphism Nav + Centered Content
 */

/* ── Global Nav ── */
.global-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.nav-content {
  max-width: 1024px;
  margin: 0 auto;
  padding: 0 28px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-name {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.021em;
  color: #1d1d1f;
  opacity: 0.92;
  transition: opacity 0.2s ease;
}

.nav-brand:hover .nav-name {
  opacity: 1;
}

.nav-desc {
  font-size: 12px;
  font-weight: 400;
  color: #86868b;
  letter-spacing: -0.01em;
  margin-top: 6px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: #1d1d1f;
  opacity: 0.72;
  letter-spacing: -0.014em;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: #0071e3;
  border-radius: 2px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateX(-50%);
}

.nav-links a:hover {
  opacity: 1;
  text-decoration: none;
  color: #0071e3;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a.active {
  opacity: 1;
  color: #0071e3;
}

.nav-links a.active::after {
  width: 100%;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-socials {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-left: 20px;
  border-left: 1px solid rgba(0, 0, 0, 0.06);
}

.nav-social {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: #1d1d1f;
  opacity: 0.6;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-social svg {
  width: 20px;
  height: 20px;
}

.nav-social:hover {
  opacity: 1;
  color: #0071e3;
  transform: translateY(-1px);
}
.main-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 28px 140px;
  transition: max-width 0.3s ease;
}

.main-content.wide {
  max-width: 1024px;
}

/* ── Footer ── */
.site-footer {
  background: rgba(245, 245, 247, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(0, 0, 0, 0.04);
  padding: 48px 28px;
  margin-top: auto;
}

.footer-content {
  max-width: 1024px;
  margin: 0 auto;
  text-align: center;
  font-size: 13px;
  color: #86868b;
  letter-spacing: -0.01em;
}