/* css/home.css —— 门户首页组件样式（依赖 tokens.css） */

/* —— 页头 —— */
.site-head {
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 20px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  font-family: var(--mono);
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--bit));
  box-shadow: var(--shadow);
}

.brand-name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.theme-toggle {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  font-size: 1.1rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform 0.15s ease, border-color 0.2s ease, background 0.2s ease;
}
.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--border-2);
}

/* —— 主体 —— */
.page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px 72px;
}

.hero {
  padding: 36px 0 6px;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(1.85rem, 4.4vw, 2.75rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 0.97rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.chip {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.3px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 11px;
}
.chip.is-accent {
  color: var(--accent);
}

/* —— 分区 —— */
.sections {
  display: grid;
  gap: 44px;
  margin-top: 40px;
}

.section-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.section-head h2 {
  margin: 0;
  font-size: 1.02rem;
  letter-spacing: 0.2px;
}

.section-count {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--faint);
}

.section-desc {
  margin: 6px 0 16px;
  color: var(--muted);
  font-size: 0.84rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(268px, 1fr));
  gap: 14px;
}

/* —— 工具卡片 —— */
.tool-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 16px;
  color: inherit;
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}
.tool-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-2);
  background: var(--surface-2);
}

.tool-icon {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--accent);
  background: var(--surface-2);
  border: 1px solid var(--border);
  transition: color 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}
.tool-card:hover .tool-icon {
  color: var(--accent-ink);
  background: linear-gradient(135deg, var(--accent), var(--bit));
  border-color: transparent;
}

.tool-body {
  flex: 1;
  min-width: 0;
  padding-right: 14px;
}

.tool-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.tool-name {
  margin: 0;
  font-size: 0.97rem;
  font-weight: 650;
  letter-spacing: 0.1px;
}

.badge {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 999px;
  color: var(--bit-ink);
  background: var(--bit);
}
.badge.is-muted {
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
}

.tool-desc {
  margin: 6px 0 0;
  font-size: 0.83rem;
  line-height: 1.55;
  color: var(--muted);
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}
.tool-tags li {
  font-family: var(--mono);
  font-size: 0.66rem;
  color: var(--faint);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 6px;
}

.tool-arrow {
  position: absolute;
  right: 14px;
  bottom: 12px;
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--faint);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.16s ease, transform 0.16s ease, color 0.16s ease;
}
.tool-card:hover .tool-arrow {
  opacity: 1;
  transform: none;
  color: var(--accent);
}

/* —— 降级提示 —— */
.load-error {
  margin-top: 30px;
  padding: 14px 16px;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--muted);
  background: var(--surface);
  border: 1px dashed var(--border-2);
  border-radius: var(--radius-sm);
}

/* —— 响应式 —— */
@media (max-width: 640px) {
  .hero {
    padding-top: 24px;
  }
  .grid {
    grid-template-columns: 1fr;
  }
  .sections {
    gap: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tool-card,
  .tool-card:hover,
  .tool-icon,
  .tool-arrow,
  .theme-toggle {
    transform: none;
    transition: none;
  }
}