/* ---------- Sticky category jump nav (shared: faq.html, glossary.html) ---------- */
.toc-tabs {
  position: sticky;
  top: 62px;
  z-index: 5;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 15, 20, 0.9);
  backdrop-filter: blur(8px);
}

.toc-tabs .wrap {
  display: flex;
  gap: 8px;
  padding: 14px 24px;
  overflow-x: auto;
}

.toc-tabs a {
  flex: none;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-dim);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 7px 18px;
  white-space: nowrap;
  transition: all 0.2s;
}

.toc-tabs a:hover {
  color: #17110a;
  background: linear-gradient(120deg, var(--amber), var(--amber-deep));
  border-color: transparent;
}

@media (max-width: 640px) {
  .toc-tabs { top: 0; }
  .toc-tabs .wrap { padding: 12px 20px; }
}

/* ---------- Page hero ---------- */
.page-hero {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
}

.page-hero h1 {
  font-size: clamp(30px, 4.5vw, 46px);
  font-weight: 900;
  line-height: 1.25;
}

.page-hero h1 .hl {
  background: linear-gradient(120deg, var(--amber), var(--amber-deep));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-hero p {
  margin-top: 14px;
  color: var(--ink-dim);
  font-size: 16px;
  max-width: 640px;
}

.page-hero-meta {
  display: flex;
  gap: 22px;
  margin-top: 22px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-dim);
}

.page-hero-meta span::before { content: "✓ "; color: var(--green); }

/* ---------- OS tab switcher ---------- */
.os-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.os-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--panel-deep);
  color: var(--ink-dim);
  cursor: pointer;
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 700;
  transition: all 0.2s;
}

.os-tab svg { width: 20px; height: 20px; fill: var(--ink-dim); transition: fill 0.2s; }

.os-tab:hover { border-color: var(--amber); color: var(--ink); }
.os-tab:hover svg { fill: var(--amber); }

.os-tab.on {
  background: linear-gradient(120deg, var(--amber), var(--amber-deep));
  border-color: transparent;
  color: #17110a;
}

.os-tab.on svg { fill: #17110a; }

/* ---------- OS panel ---------- */
.os-panel { display: none; }

.os-panel.on { display: block; animation: fadeUp 0.35s ease; }

.os-panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.os-panel-head h2 { font-size: 24px; font-weight: 900; }

.os-panel-head .ver-badge {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--green);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 4px 14px;
}

.os-req {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.os-req span {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-dim);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 12px;
}

/* ---------- Version table ---------- */
.ver-table {
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  overflow: hidden;
  background: var(--panel-deep);
}

.ver-table-head {
  display: grid;
  grid-template-columns: 1.6fr 0.8fr 0.8fr auto;
  gap: 16px;
  padding: 12px 22px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-dim);
  letter-spacing: 1px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.ver-row {
  display: grid;
  grid-template-columns: 1.6fr 0.8fr 0.8fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  transition: background 0.15s;
}

.ver-row:last-child { border-bottom: none; }

.ver-row:hover { background: rgba(255, 176, 59, 0.04); }

.ver-name { font-size: 14.5px; font-weight: 700; }

.ver-name small {
  display: block;
  font-family: var(--mono);
  font-weight: 400;
  font-size: 11.5px;
  color: var(--ink-dim);
  margin-top: 2px;
}

.ver-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-dim);
}

.ver-note {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-dim);
}

.ver-get {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--amber);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 7px 16px;
  white-space: nowrap;
  transition: all 0.15s;
}

.ver-get:hover { background: var(--amber); color: #17110a; border-color: var(--amber); }

/* ---------- Client cards (multiple clients per OS panel) ---------- */
.client-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.client-card {
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  padding: 22px 24px;
  background: var(--panel-deep);
}

.client-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.client-head h3 { font-size: 16.5px; font-weight: 800; }

.client-head .gh-link {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-dim);
  border-bottom: 1px dashed var(--line-strong);
}

.client-head .gh-link:hover { color: var(--amber); }

.client-badge {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 3px 11px;
  border: 1px solid var(--line-strong);
  color: var(--ink-dim);
  white-space: nowrap;
}

.client-badge.recommended {
  color: var(--green);
  border-color: rgba(84, 209, 140, 0.35);
  background: rgba(84, 209, 140, 0.08);
}

.client-badge.deprecated {
  color: #ff8a80;
  border-color: rgba(255, 138, 128, 0.35);
  background: rgba(255, 138, 128, 0.06);
}

.client-desc {
  color: var(--ink-dim);
  font-size: 13.5px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.client-card .ver-table { border-radius: 10px; }
.client-card .ver-row { padding: 12px 18px; }
.client-card .callout { margin-top: 16px; }

/* ---------- Mihomo core tables (wider "best for" column) ---------- */
.core-block { margin-bottom: 28px; }
.core-block:last-child { margin-bottom: 0; }

.core-block h3 {
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--ink);
}

.core-table .ver-table-head,
.core-table .ver-row {
  grid-template-columns: 0.9fr 0.6fr 1.7fr auto;
}

/* ---------- Install command box ---------- */
.cmd-box {
  margin-top: 18px;
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--panel-deep);
  font-family: var(--mono);
  font-size: 13px;
}

.cmd-box .prompt { padding: 13px 0 13px 18px; color: var(--green); flex: none; }

.cmd-box code { flex: 1; min-width: 0; padding: 13px 14px; color: var(--ink); overflow-x: auto; white-space: nowrap; }

.cmd-box code b { color: var(--amber); font-weight: 400; }

/* ---------- Callout ---------- */
.callout {
  margin-top: 22px;
  padding: 14px 18px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--amber);
  border-radius: 8px;
  background: rgba(255, 176, 59, 0.05);
  font-size: 13.5px;
  color: var(--ink-dim);
  overflow-wrap: anywhere;
}

.callout b { color: var(--amber); font-weight: 700; margin-right: 6px; }

/* ---------- Panel footer links ---------- */
.os-panel-links {
  display: flex;
  gap: 24px;
  margin-top: 24px;
  flex-wrap: wrap;
  font-size: 13.5px;
}

.os-panel-links a { color: var(--amber); border-bottom: 1px dashed var(--line-strong); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .ver-table-head { display: none; }

  .ver-row {
    grid-template-columns: 1fr auto;
    row-gap: 8px;
  }

  .ver-tag, .ver-note { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .os-tabs { gap: 8px; }
  .os-tab { padding: 10px 16px; font-size: 13px; }
  .os-tab span.label { display: none; }
}