body {
  margin: 0;
  background: #f7f7fb;
  color: #222;
}

a {
  color: inherit;
  text-decoration: none;
}

.haku-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #e8e8ef;
}

.haku-header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.haku-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.haku-logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #111827;
  color: #fff;
  font-size: 17px;
}

.haku-logo-text {
  font-size: 22px;
}

.haku-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 15px;
  color: #555;
}

.haku-nav a:hover {
  color: #111;
}

.haku-footer {
  margin-top: 80px;
  border-top: 1px solid #e8e8ef;
  background: #fff;
}

.haku-footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 34px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  color: #666;
  font-size: 14px;
}

.haku-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.haku-footer-brand strong {
  color: #222;
  font-size: 18px;
}

.haku-footer-nav {
  display: flex;
  gap: 18px;
}

.haku-footer-nav a:hover {
  color: #111;
}

.haku-copy {
  margin: 0;
}

@media (max-width: 720px) {
  .haku-header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 20px;
  }

  .haku-nav {
    width: 100%;
    overflow-x: auto;
    gap: 18px;
    padding-bottom: 4px;
    white-space: nowrap;
  }

  .haku-logo-text {
    font-size: 20px;
  }

  .haku-footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}