.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  color: var(--color-text);
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 54px;
  height: 54px;
  flex: 0 0 54px;
  border-radius: var(--radius-lg);
  background: var(--color-logo-blue);
  object-fit: cover;
}

.brand-name {
  margin: 0;
  font-size: 1.38rem;
  font-weight: 700;
}

.theme-switcher {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.header-home-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 5px 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-control);
  color: var(--color-text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-decoration: none;
}

.header-home-link:hover,
.header-home-link[aria-current="page"] {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.theme-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 0.85rem;
}

.theme-button:hover {
  background: var(--color-control);
  color: var(--color-text);
}

.theme-button.is-active {
  background: var(--color-primary);
  color: #ffffff;
}

.theme-dot {
  display: block;
  width: 14px;
  height: 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
}

.theme-dot-original {
  background: linear-gradient(135deg, #0b1c3f 0 50%, #f39800 50% 100%);
}

.theme-dot-dark {
  background: #0d0d0d;
}

.theme-dot-light {
  background: #f0f4f8;
}

.tool-card {
  padding: 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  transition: border-color 0.2s, transform 0.2s;
}

.tool-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 15px;
}

.card-header h1,
.card-header h2 {
  margin: 0;
  font-size: 1.08rem;
}

.category-tag {
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
}

.link-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.link-list li + li {
  margin-top: 8px;
}

.link-list a,
.planned-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 42px;
  padding: 9px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-control);
  font-size: 0.84rem;
}

.link-list a {
  color: var(--color-text);
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}

.link-list a:hover {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
}

.planned-link {
  color: var(--color-text-muted);
}

.planned-link small {
  flex: 0 0 auto;
  font-size: 0.62rem;
  white-space: nowrap;
}

@media (max-width: 520px) {
  .brand-logo {
    width: 46px;
    height: 46px;
  }

  .brand-name {
    font-size: 1.15rem;
  }

  .theme-button {
    width: 28px;
    height: 28px;
  }

  .tool-card {
    padding: 18px;
  }
}