/* ================================================================
   Manual CRM — docs layout on top of BASE/labs tokens
   ================================================================ */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
button { font: inherit; cursor: pointer; }
::selection { background: rgba(54,84,174,0.18); }

:root {
  --side-w: 296px;
  --toc-w: 232px;
  --header-h: 64px;
  --reading: 768px;
}

/* ---- Dark mode token overrides --------------------------------- */
html[data-mode="dark"] {
  --bg-page: #0c1020;
  --bg-subtle: #11162a;
  --bg-muted: #161d36;
  --bg-card: #11162a;
  --fg-1: #eef1f7;
  --fg-2: #aab3c8;
  --fg-3: #7b8499;
  --fg-4: #5a6378;
  --fg-brand: #8a9fda;
  --border-1: #232b45;
  --border-2: #1a2138;
  --border-brand: #3f5baa;
  --color-ink-50: #11162a;
  --color-ink-100: #181f38;
}
html[data-mode="dark"] body { background: var(--bg-page); color: var(--fg-1); }

body {
  font-family: var(--font-mono);
  background: var(--bg-page);
  color: var(--fg-1);
  -webkit-font-smoothing: antialiased;
}

/* ================================================================
   HEADER
   ================================================================ */
.dh {
  position: sticky;
  top: 0;
  z-index: 60;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg-page) 88%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border-2);
}
.dh-inner {
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.dh-brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.dh-brand img { height: 22px; display: block; }
.dh-sep { color: var(--fg-4); font-weight: 300; }
.dh-title {
  font-size: 13px; font-weight: 500; color: var(--fg-2);
  letter-spacing: 0.02em; white-space: nowrap;
}
.dh-spacer { flex: 1; }

/* ---- Page nav (multi-page) ---- */
.dh-nav { display: flex; gap: 2px; align-items: center; }
.dh-nav a {
  font-size: 13px; font-weight: 500; color: var(--fg-3);
  padding: 6px 12px; border-radius: 7px; border-bottom: 0;
  letter-spacing: 0.01em; white-space: nowrap;
  transition: color var(--motion-fast) var(--easing-standard),
              background var(--motion-fast) var(--easing-standard);
}
.dh-nav a:hover { color: var(--fg-1); background: var(--bg-subtle); }
.dh-nav a.active { color: var(--fg-brand); background: color-mix(in srgb, var(--color-blue-700) 9%, transparent); }
.dh-nav .num { font-size: 10px; color: var(--fg-4); letter-spacing: 0.08em; margin-right: 6px; }
.dh-nav a.active .num { color: var(--fg-brand); }

.dh-search {
  display: flex; align-items: center; gap: 8px;
  height: 36px; padding: 0 12px;
  min-width: 220px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-1);
  border-radius: 8px;
  color: var(--fg-3);
  font-size: 13px;
  transition: border-color var(--motion-fast) var(--easing-standard);
}
.dh-search:hover { border-color: var(--border-1); }
.dh-search:focus-within { border-color: var(--color-blue-700); box-shadow: var(--shadow-focus); }
.dh-search svg { width: 15px; height: 15px; stroke: var(--fg-3); flex: 0 0 auto; }
.dh-search input {
  border: 0; background: transparent; outline: none;
  font-family: var(--font-mono); font-size: 13px; color: var(--fg-1);
  width: 100%;
}
.dh-search input::placeholder { color: var(--fg-4); }
.dh-search .kbd {
  margin-left: auto; font-size: 10px; letter-spacing: 0.08em;
  color: var(--fg-4); border: 1px solid var(--border-1);
  border-radius: 4px; padding: 2px 6px; flex: 0 0 auto;
}

.dh-icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border: 1px solid var(--border-1);
  border-radius: 8px;
  background: var(--bg-subtle);
  color: var(--fg-2);
  transition: all var(--motion-fast) var(--easing-standard);
}
.dh-icon-btn:hover { border-color: var(--color-blue-700); color: var(--fg-brand); }
.dh-icon-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.6; }
.dh-menu-btn { display: none; }

/* ---- Search dropdown ---- */
.dh-search-wrap { flex: 0 0 auto; }
.search-panel {
  position: absolute; top: calc(100% + 8px); right: 0;
  width: 340px; max-width: 78vw;
  background: var(--bg-card);
  border: 1px solid var(--border-1);
  border-radius: 12px;
  box-shadow: var(--shadow-3);
  padding: 6px;
  z-index: 80;
  max-height: 60vh; overflow-y: auto;
}
.search-empty { padding: 16px; font-size: 13px; color: var(--fg-3); }
.search-item {
  display: flex; flex-direction: column; gap: 2px;
  width: 100%; text-align: left;
  padding: 9px 12px; border: 0; border-radius: 8px;
  background: transparent;
  transition: background var(--motion-fast) var(--easing-standard);
}
.search-item:hover { background: var(--bg-subtle); }
.search-item .si-label { font-size: 13.5px; color: var(--fg-1); font-weight: 500; }
.search-item .si-ctx { font-size: 11px; color: var(--fg-4); letter-spacing: 0.04em; }

/* ================================================================
   SHELL GRID
   ================================================================ */
.shell {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: var(--side-w) minmax(0, 1fr);
  align-items: start;
}

/* ---- Sidebar ---- */
.side {
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 32px 20px 64px 24px;
  border-right: 1px solid var(--border-2);
  scrollbar-width: thin;
}
.side-group { margin-bottom: 28px; }
.side-group-head {
  display: flex; align-items: baseline; gap: 8px;
  width: 100%;
  text-align: left;
  background: none; border: 0;
  padding: 6px 10px;
  border-radius: 6px;
  color: var(--fg-1);
  transition: background var(--motion-fast) var(--easing-standard);
}
.side-group-head:hover { background: var(--color-ink-50); }
.side-group-head.active { color: var(--fg-brand); }
.side-group-head .num {
  font-size: 11px; color: var(--fg-4); letter-spacing: 0.08em;
  font-weight: 500; flex: 0 0 auto;
}
.side-group-head.active .num { color: var(--fg-brand); }
.side-group-head .label {
  font-size: 14px; font-weight: 600; letter-spacing: -0.01em;
}
.side-links {
  list-style: none; margin: 6px 0 0; padding: 0 0 0 4px;
  border-left: 1px solid var(--border-2);
  margin-left: 13px;
  overflow: hidden;
}
.side-links li { margin: 0; }
.side-links a {
  display: block;
  padding: 6px 10px 6px 16px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  border-bottom: 0;
  font-size: 13px;
  color: var(--fg-3);
  line-height: 1.4;
  transition: color var(--motion-fast) var(--easing-standard),
              border-color var(--motion-fast) var(--easing-standard);
}
.side-links a:hover { color: var(--fg-1); }
.side-links a.active {
  color: var(--fg-brand);
  border-left-color: var(--color-blue-700);
  font-weight: 500;
}
.side-sublinks {
  list-style: none;
  margin: 2px 0 8px;
  padding: 0;
  border-left: 1px solid var(--border-2);
  margin-left: 17px;
}
.side-sublinks a {
  display: block;
  padding: 5px 10px 5px 14px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  border-bottom: 0;
  font-size: 12px;
  color: var(--fg-4);
  line-height: 1.35;
  transition: color var(--motion-fast) var(--easing-standard),
              border-color var(--motion-fast) var(--easing-standard);
}
.side-sublinks a:hover { color: var(--fg-2); }
.side-sublinks a.active { color: var(--fg-brand); border-left-color: var(--color-blue-700); font-weight: 500; }
.side-foot {
  margin-top: 8px; padding: 16px 10px 0;
  border-top: 1px solid var(--border-2);
  font-size: 11px; color: var(--fg-4); line-height: 1.6;
  letter-spacing: 0.02em;
}

/* multi-page: só o grupo da página atual mostra seus links; os outros são só o cabeçalho (link p/ outra página) */
.side-group.collapsed .side-links { display: none; }
/* terceiro nível (tópicos h3) só aparece sob a subseção ativa */
.side-links li > .side-sublinks { display: none; }
.side-links li.expanded > .side-sublinks { display: block; }

/* ---- Content column ---- */
.main {
  min-width: 0;
  padding: 56px 64px 120px;
}
.article { max-width: var(--reading); }

.page-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--fg-3);
  margin-bottom: 18px;
}
.page-eyebrow::before { content: "// "; color: var(--fg-brand); font-weight: 600; }
.page-num {
  color: var(--fg-4); letter-spacing: 0.1em;
}

h1.page-title {
  font-size: clamp(34px, 4.4vw, 46px);
  font-weight: 700; line-height: 1.08; letter-spacing: -0.025em;
  margin: 0 0 20px; color: var(--fg-1);
}
h1.page-title em { font-style: italic; color: var(--fg-brand); font-weight: 700; }
.page-lead {
  font-size: 18px; line-height: 1.6; color: var(--fg-2);
  font-weight: 400; max-width: 64ch; margin: 0 0 8px;
}
.page-lead strong { color: var(--fg-1); font-weight: 600; }

.article section { scroll-margin-top: calc(var(--header-h) + 24px); }
.sec-head { display: flex; align-items: baseline; gap: 14px; margin: 64px 0 4px; }
.sec-head .sec-rule { flex: 1; height: 1px; background: var(--border-2); }
h2.sec-title {
  font-size: 26px; font-weight: 600; letter-spacing: -0.015em;
  margin: 0; color: var(--fg-1); line-height: 1.2;
}
h2.sec-title em { font-style: italic; color: var(--fg-brand); }
h2.sec-title .sec-num { color: var(--fg-brand); font-weight: 500; margin-right: 10px; }
.sec-kicker { font-size: 12px; color: var(--fg-4); letter-spacing: 0.1em; flex: 0 0 auto; }

h3.sub-title {
  font-size: 18px; font-weight: 600; letter-spacing: -0.01em;
  margin: 40px 0 0; color: var(--fg-1); line-height: 1.3;
  display: flex; align-items: baseline; gap: 10px;
}
h3.sub-title .h3-num {
  font-size: 12px; color: var(--fg-brand); font-weight: 500; letter-spacing: 0.06em;
}
h4.minor-title {
  font-size: 14px; font-weight: 600; letter-spacing: 0.02em;
  margin: 28px 0 0; color: var(--fg-2);
  text-transform: uppercase;
}

.article p {
  font-size: 15px; line-height: 1.7; color: var(--fg-2);
  margin: 16px 0 0; max-width: 68ch;
}
.article p strong { color: var(--fg-1); font-weight: 700; }
.article p em { font-style: italic; }
.article a.inline { color: var(--fg-brand); border-bottom: 1px solid transparent; }
.article a.inline:hover { border-bottom-color: currentColor; }
.article code.ic {
  font-family: var(--font-mono); font-size: 0.86em;
  background: var(--bg-muted);
  color: var(--fg-1);
  padding: 0.12em 0.4em; border-radius: 4px;
  border: 1px solid var(--border-2);
  white-space: nowrap;
}

/* ---- Bullet list ---- */
ul.md-list { list-style: none; margin: 18px 0 0; padding: 0; max-width: 68ch; }
ul.md-list li {
  position: relative; padding-left: 22px;
  font-size: 15px; line-height: 1.7; color: var(--fg-2);
  margin-top: 8px;
}
ul.md-list li::before {
  content: "—"; position: absolute; left: 0; top: 0;
  color: var(--fg-brand); font-weight: 500;
}

/* ================================================================
   CODE BLOCK (terminal)
   ================================================================ */
.code {
  margin: 20px 0 0;
  background: #0c1020;
  border: 1px solid #1d2540;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.code-bar {
  display: flex; align-items: center; gap: 10px;
  height: 38px; padding: 0 12px 0 14px;
  background: #11162a;
  border-bottom: 1px solid #1d2540;
}
.code-dots { display: flex; gap: 6px; }
.code-dots i { width: 9px; height: 9px; border-radius: 999px; display: block; }
.code-dots i:nth-child(1) { background: #ff6e5a; }
.code-dots i:nth-child(2) { background: #d1b54a; }
.code-dots i:nth-child(3) { background: #9edc37; }
.code-label {
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: #6f7896; font-weight: 500;
}
.code-copy {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 6px;
  background: transparent; border: 1px solid #283156;
  color: #9aa4c2; border-radius: 6px;
  font-size: 11px; letter-spacing: 0.04em;
  padding: 5px 10px;
  transition: all var(--motion-fast) var(--easing-standard);
}
.code-copy:hover { border-color: #3f5baa; color: #cdd6ee; }
.code-copy.done { color: #9edc37; border-color: #4e6b2a; }
.code-copy svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 1.6; }
.code pre {
  margin: 0; padding: 16px 18px;
  overflow-x: auto;
  background: transparent;
  border-radius: 0;
}
.code code {
  font-family: var(--font-mono);
  font-size: 13px; line-height: 1.65;
  color: #cdd6ee;
  background: transparent; padding: 0; border: 0;
  white-space: pre;
}
.code code .cm { color: #6f7896; font-style: italic; }
.code code .pr { color: #9edc37; }
.code code .fl { color: #8a9fda; }
.code code .st { color: #e6b873; }

/* ================================================================
   CALLOUT
   ================================================================ */
.callout {
  display: flex; gap: 14px;
  margin: 24px 0 0;
  padding: 16px 18px;
  border-radius: 10px;
  border: 1px solid var(--border-1);
  background: var(--bg-subtle);
  border-left-width: 3px;
}
.callout .ic-wrap {
  flex: 0 0 auto; width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  margin-top: 1px;
}
.callout .ic-wrap svg { width: 18px; height: 18px; stroke-width: 1.7; fill: none; }
.callout .body { min-width: 0; }
.callout .ttl {
  font-size: 11px; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; margin: 0 0 4px;
}
.callout .ttl::before { content: "// "; }
.callout p { margin: 0 !important; font-size: 14px !important; line-height: 1.6 !important; color: var(--fg-2) !important; }
.callout.attention { border-left-color: var(--color-coral); }
.callout.attention .ttl { color: var(--color-coral); }
.callout.attention .ic-wrap svg { stroke: var(--color-coral); }
.callout.tip { border-left-color: #7fb52a; }
html[data-mode="dark"] .callout.tip { border-left-color: var(--color-lime); }
.callout.tip .ttl { color: #5f9410; }
html[data-mode="dark"] .callout.tip .ttl { color: var(--color-lime); }
.callout.tip .ic-wrap svg { stroke: #5f9410; }
html[data-mode="dark"] .callout.tip .ic-wrap svg { stroke: var(--color-lime); }
.callout.note { border-left-color: var(--color-blue-700); }
.callout.note .ttl { color: var(--fg-brand); }
.callout.note .ic-wrap svg { stroke: var(--fg-brand); }

/* ================================================================
   STEPS (numbered)
   ================================================================ */
.steps { margin: 24px 0 0; position: relative; }
.step {
  position: relative;
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 18px;
  padding-bottom: 24px;
}
.step:last-child { padding-bottom: 0; }
.step::before {
  content: ""; position: absolute;
  left: 18px; top: 36px; bottom: -2px; width: 1px;
  background: var(--border-1);
}
.step:last-child::before { display: none; }
.step-num {
  z-index: 1;
  width: 38px; height: 38px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-1);
  color: var(--fg-brand);
  font-size: 14px; font-weight: 600;
  flex: 0 0 auto;
}
.step.done .step-num { background: var(--color-blue-700); color: #fff; border-color: var(--color-blue-700); }
.step-body { padding-top: 6px; min-width: 0; }
.step-body .st-ttl { font-size: 15px; font-weight: 600; color: var(--fg-1); margin: 0; }
.step-body p { margin: 6px 0 0 !important; font-size: 14px !important; }

/* ================================================================
   TABLE
   ================================================================ */
.tbl-wrap { margin: 22px 0 0; overflow-x: auto; border: 1px solid var(--border-1); border-radius: 10px; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.tbl thead th {
  text-align: left; padding: 11px 16px;
  background: var(--bg-subtle);
  color: var(--fg-3);
  font-weight: 600; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  border-bottom: 1px solid var(--border-1);
  white-space: nowrap;
}
table.tbl tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-2);
  color: var(--fg-2); line-height: 1.55; vertical-align: top;
}
table.tbl tbody tr:last-child td { border-bottom: 0; }
table.tbl tbody tr:hover td { background: color-mix(in srgb, var(--bg-subtle) 50%, transparent); }
table.tbl td strong, table.tbl td b { color: var(--fg-1); }
table.tbl code.ic { white-space: nowrap; }

/* ================================================================
   OS TABS (Mac / Windows)
   ================================================================ */
.ostabs { margin: 24px 0 0; }
.ostabs-bar {
  display: inline-flex; gap: 4px;
  padding: 4px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-1);
  border-radius: 10px;
}
.ostabs-bar button {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border: 0; border-radius: 7px;
  background: transparent; color: var(--fg-3);
  font-size: 13px; font-weight: 500;
  transition: all var(--motion-fast) var(--easing-standard);
}
.ostabs-bar button svg { width: 15px; height: 15px; }
.ostabs-bar button.active { background: var(--bg-card); color: var(--fg-1); box-shadow: var(--shadow-1); }
.ostabs-panel { margin-top: 8px; }

/* ================================================================
   COMMAND FLOW
   ================================================================ */
.flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 14px;
  margin: 28px 0 0;
}
.flow-card {
  border: 1px solid var(--border-1);
  border-radius: 12px;
  padding: 20px 18px;
  background: var(--bg-card);
  display: flex; flex-direction: column; gap: 10px;
  transition: transform var(--motion-base) var(--easing-standard),
              border-color var(--motion-base) var(--easing-standard),
              box-shadow var(--motion-base) var(--easing-standard);
}
.flow-card:hover { transform: translateY(-2px); border-color: var(--color-blue-700); box-shadow: var(--shadow-2); }
.flow-card .glyph {
  width: 34px; height: 34px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-muted); color: var(--fg-brand);
  font-size: 16px; font-weight: 700;
}
.flow-card .cmd { font-size: 13px; font-weight: 600; color: var(--fg-brand); }
.flow-card .desc { font-size: 13px; color: var(--fg-2); line-height: 1.5; }
.flow-arrow {
  display: flex; align-items: center; justify-content: center;
  color: var(--fg-4); font-size: 18px;
}

/* ================================================================
   ER DIAGRAM
   ================================================================ */
.er-legend {
  display: flex; flex-wrap: wrap; gap: 16px;
  margin: 22px 0 0; font-size: 12px; color: var(--fg-3);
}
.er-legend .it { display: inline-flex; align-items: center; gap: 7px; }
.er-legend .chip {
  font-size: 10px; padding: 1px 6px; border-radius: 3px;
  letter-spacing: 0.04em; font-weight: 600;
}
.er-grid {
  margin: 18px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.er-card {
  border: 1px solid var(--border-1);
  border-radius: 10px;
  background: var(--bg-card);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color var(--motion-base) var(--easing-standard),
              box-shadow var(--motion-base) var(--easing-standard),
              transform var(--motion-base) var(--easing-standard);
}
.er-card:hover { border-color: var(--color-blue-700); box-shadow: var(--shadow-2); transform: translateY(-2px); }
.er-card.lookup { background: var(--bg-subtle); }
.er-card-head {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 12px;
  border-bottom: 1px solid var(--border-1);
  background: color-mix(in srgb, var(--color-blue-700) 8%, transparent);
}
.er-card.lookup .er-card-head { background: transparent; }
.er-card-head .tname { font-size: 13px; font-weight: 700; color: var(--fg-1); letter-spacing: -0.01em; }
.er-card-head .tkey { margin-left: auto; font-size: 10px; color: var(--fg-4); letter-spacing: 0.06em; }
.er-fields { list-style: none; margin: 0; padding: 6px 0; }
.er-fields li {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 12px;
  font-size: 11.5px; color: var(--fg-2);
  line-height: 1.3;
}
.er-fields li .fn { font-weight: 500; color: var(--fg-1); }
.er-fields li .ft { margin-left: auto; color: var(--fg-4); font-size: 10.5px; }
.er-fields li .badge {
  font-size: 9px; font-weight: 700; letter-spacing: 0.04em;
  padding: 1px 5px; border-radius: 3px; flex: 0 0 auto;
}
.badge.pk { background: rgba(54,84,174,0.14); color: var(--fg-brand); }
.badge.fk { background: rgba(158,220,55,0.18); color: #5f9410; }
html[data-mode="dark"] .badge.fk { color: var(--color-lime); }
.badge.lk { background: rgba(255,110,90,0.14); color: var(--color-coral); }
.er-fields li .ref { color: var(--fg-brand); font-size: 10.5px; margin-left: auto; }

/* ================================================================
   RESULT BLOCK (success terminal output)
   ================================================================ */
.result {
  margin: 22px 0 0;
  border: 1px solid var(--border-1);
  border-left: 3px solid #7fb52a;
  border-radius: 10px;
  background: var(--bg-subtle);
  overflow: hidden;
}
html[data-mode="dark"] .result { border-left-color: var(--color-lime); }
.result-head {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-bottom: 1px solid var(--border-2);
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); font-weight: 600;
}
.result-head .dot { width: 8px; height: 8px; border-radius: 999px; background: #7fb52a; }
html[data-mode="dark"] .result-head .dot { background: var(--color-lime); }
.result pre { margin: 0; padding: 16px 18px; overflow-x: auto; background: transparent; border: 0; border-radius: 0; }
.result code { background: transparent; border: 0; padding: 0; font-size: 12.5px; line-height: 1.7; color: var(--fg-1); white-space: pre; }
.result code .k { color: var(--fg-3); }
.result code .v { color: var(--fg-brand); }

/* ================================================================
   PAGER (prev / next)
   ================================================================ */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 72px 0 0; }
.pager a {
  border: 1px solid var(--border-1); border-radius: 12px;
  padding: 18px 20px; text-decoration: none; border-bottom: 1px solid var(--border-1);
  transition: border-color var(--motion-base) var(--easing-standard), transform var(--motion-base) var(--easing-standard);
  display: flex; flex-direction: column; gap: 4px;
}
.pager a:hover { border-color: var(--color-blue-700); transform: translateY(-2px); }
.pager a.next { text-align: right; align-items: flex-end; }
.pager a.empty { visibility: hidden; }
.pager .dir { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); }
.pager .pg { font-size: 16px; font-weight: 600; color: var(--fg-brand); }

/* ================================================================
   RIGHT TOC
   ================================================================ */
.toc {
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 56px 24px 64px 8px;
  scrollbar-width: thin;
}
.toc-label {
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-3); font-weight: 600; margin: 0 0 14px;
}
.toc-label::before { content: "// "; color: var(--fg-brand); }
.toc ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--border-2); }
.toc li a {
  display: block; padding: 5px 12px;
  margin-left: -1px; border-left: 2px solid transparent;
  font-size: 12.5px; color: var(--fg-3); line-height: 1.4;
  border-bottom: 0;
  transition: color var(--motion-fast) var(--easing-standard), border-color var(--motion-fast) var(--easing-standard);
}
.toc li a.sub { padding-left: 24px; font-size: 12px; color: var(--fg-4); }
.toc li a:hover { color: var(--fg-1); }
.toc li a.active { color: var(--fg-brand); border-left-color: var(--color-blue-700); font-weight: 500; }
.toc-top {
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border-2);
  font-size: 12px; color: var(--fg-3); background: none; border-bottom: 0; border-right: 0; border-left: 0;
  display: inline-flex; align-items: center; gap: 6px;
}
.toc-top:hover { color: var(--fg-brand); }

/* ================================================================
   MOBILE SIDEBAR DRAWER
   ================================================================ */
.scrim { display: none; }

@media (max-width: 1180px) {
  .main { padding: 48px 56px 100px; }
}
@media (max-width: 860px) {
  .dh-menu-btn { display: inline-flex; }
  .dh-search { min-width: 0; width: 38px; padding: 0; justify-content: center; }
  .dh-search input, .dh-search .kbd { display: none; }
  .shell { grid-template-columns: 1fr; }
  .side {
    position: fixed; top: var(--header-h); left: 0; z-index: 55;
    width: 300px; max-width: 86vw;
    background: var(--bg-page);
    transform: translateX(-102%);
    transition: transform var(--motion-base) var(--easing-standard);
    box-shadow: var(--shadow-3);
  }
  html.nav-open .side { transform: translateX(0); }
  html.nav-open .scrim {
    display: block; position: fixed; inset: var(--header-h) 0 0 0; z-index: 54;
    background: rgba(8,11,22,0.5);
  }
  .main { padding: 36px 22px 80px; }
  .flow { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); padding: 2px 0; }
  .er-grid { grid-template-columns: 1fr; }
  .pager { grid-template-columns: 1fr; }
}

/* entrance — transform only, never opacity, so content is always visible */
@media (prefers-reduced-motion: no-preference) {
  .article > * { animation: fadeup var(--motion-slow) var(--easing-standard); }
  @keyframes fadeup { from { transform: translateY(6px); } to { transform: none; } }
}