/* ===== MCP 工具中心 ===== */

.mcp-hero {
  padding: calc(var(--nav-height) + 64px) 0 40px;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 50% at 50% -10%, rgba(79, 110, 247, 0.25), transparent),
    var(--bg-app);
}

.mcp-hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent-light);
  border: 1px solid rgba(122, 162, 247, 0.35);
  border-radius: var(--radius-round);
  padding: 4px 14px;
  margin-bottom: 18px;
}

.mcp-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  background: linear-gradient(135deg, #e3e7ee, #7aa2f7);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mcp-hero-sub {
  max-width: 640px;
  margin: 14px auto 0;
  color: var(--fg-secondary);
  font-size: 1.05rem;
}

.mcp-main { padding-top: 32px; min-height: 40vh; }

/* ---- 卡片网格 ---- */
.mcp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 22px;
}

.mcp-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  animation: mcp-fade-in 0.45s ease both;
}
.mcp-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}
@keyframes mcp-fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.mcp-card-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.mcp-avatar {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.3rem;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #9b59f7);
}

.mcp-title { font-size: 1.15rem; font-weight: 700; }
.mcp-tagline { color: var(--fg-muted); font-size: 0.88rem; }

.mcp-version-badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-light);
  background: rgba(79, 110, 247, 0.12);
  border: 1px solid rgba(79, 110, 247, 0.3);
  border-radius: var(--radius-round);
  padding: 3px 10px;
  white-space: nowrap;
}
.mcp-version-badge.pending { color: var(--fg-muted); border-color: var(--border); background: transparent; }
.mcp-version-badge.err { color: #f87171; border-color: #f87171; background: rgba(248, 113, 113, 0.1); }

.mcp-retry {
  font-size: 0.72rem;
  color: var(--accent-light);
  background: transparent;
  border: 1px solid rgba(122, 162, 247, 0.4);
  border-radius: var(--radius-round);
  padding: 3px 10px;
  cursor: pointer;
  transition: all 0.15s;
  margin-left: 8px;
  white-space: nowrap;
}
.mcp-retry:hover { background: rgba(79, 110, 247, 0.15); color: #fff; }

.mcp-desc { color: var(--fg-secondary); font-size: 0.92rem; }

.mcp-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.mcp-tag {
  font-size: 0.72rem;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px 9px;
}

/* ---- 展开区 ---- */
.mcp-actions { display: flex; gap: 10px; margin-top: auto; padding-top: 6px; }
.mcp-actions .btn { flex: 1; text-align: center; }

.mcp-detail {
  display: none;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
  margin-top: 4px;
  flex-direction: column;
  gap: 16px;
}
.mcp-card.open .mcp-detail { display: flex; }

.mcp-detail h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  margin-bottom: 8px;
}

.code-block {
  position: relative;
  background: #16181d;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.code-block pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.55;
  color: #c9d4e8;
}
.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.72rem;
  color: var(--fg-secondary);
  background: var(--bg-panel-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.copy-btn:hover { color: #fff; border-color: var(--accent); }
.copy-btn.done { color: #4ade80; border-color: #4ade80; }

.meta-row {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--fg-muted);
  word-break: break-all;
}

/* 客户端标签页 */
.client-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.client-tab {
  font-size: 0.78rem;
  color: var(--fg-secondary);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-round);
  padding: 4px 13px;
  cursor: pointer;
  transition: all 0.15s;
}
.client-tab.active {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.pane { display: none; }
.pane.active { display: block; }

.mcp-note {
  font-size: 0.85rem;
  color: var(--fg-secondary);
  background: rgba(79, 110, 247, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px 14px;
}
.mcp-note code { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent-light); }

/* 骨架屏 & 错误态 */
.mcp-skeleton {
  height: 220px;
  border-radius: var(--radius-lg);
  background: linear-gradient(100deg, var(--bg-panel) 40%, var(--bg-hover) 50%, var(--bg-panel) 60%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s infinite;
}
@keyframes skeleton-shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}
.mcp-error {
  text-align: center;
  color: var(--fg-secondary);
  padding: 48px 0;
}

/* 通用流程 */
.mcp-howto { padding-top: 24px; }
.howto-steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 28px;
}
.howto-steps li {
  counter-increment: step;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px;
  color: var(--fg-secondary);
  font-size: 0.92rem;
  position: relative;
}
.howto-steps li::before {
  content: counter(step);
  position: absolute;
  top: -14px;
  left: 20px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #9b59f7);
  border-radius: var(--radius-round);
}
.howto-steps strong { color: var(--fg); }
.howto-steps code { font-family: var(--font-mono); font-size: 0.82rem; color: var(--accent-light); }

.nav-links a.active { color: var(--accent-light); font-weight: 600; }

@media (max-width: 480px) {
  .mcp-grid { grid-template-columns: 1fr; }
  .mcp-version-badge { margin-left: 0; }
}