/* Kathuko SQL guide: a few additions on top of site.css and course.css */
.sqlguide .ver { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .02em; padding: 2px 8px;
  border-radius: 999px; border: 1px solid var(--rule); vertical-align: middle; margin-left: 6px; }
.sqlguide .ver.v19 { color: var(--link); border-color: color-mix(in srgb, var(--link) 45%, transparent); }
.sqlguide .ver.v26 { color: var(--lamp); border-color: color-mix(in srgb, var(--lamp) 55%, transparent); }
.sqlguide .prose figure.result { margin: 18px 0 22px; }
.sqlguide .prose figure.result figcaption { font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.sqlguide .prose figure.result td { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; white-space: nowrap; }
.sqlguide .prose figure.result th { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.sqlguide .prose .null { color: var(--muted); font-style: italic; opacity: .7; }
.sqlguide .prose .code-label { font-size: 13px; font-weight: 600; color: var(--muted); margin: 14px 0 -4px; }
.sqlguide .prose figure.flow { margin: 20px 0 26px; }
.sqlguide .prose figure.flow figcaption { font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 10px; }
.sqlguide .prose figure.flow ol { list-style: none; padding: 0; margin: 0; counter-reset: step; display: grid; gap: 0; }
.sqlguide .prose figure.flow li { position: relative; display: grid; grid-template-columns: 34px minmax(120px, 190px) 1fr; gap: 12px;
  align-items: baseline; padding: 9px 12px; border: 1px solid var(--rule); border-radius: 12px; margin: 0 0 14px; counter-increment: step; }
.sqlguide .prose figure.flow li::before { content: counter(step); font-variant-numeric: tabular-nums; color: var(--muted); font-size: 13px; }
.sqlguide .prose figure.flow li:not(:last-child)::after { content: ""; position: absolute; left: 28px; bottom: -14px; height: 14px;
  border-left: 1px solid var(--rule); }
.sqlguide .prose figure.flow li b { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13.5px; font-weight: 600; }
.sqlguide .prose figure.flow li span { color: var(--muted); font-size: 15px; }
.sqlguide .prose figure.flow li.hl { border-color: var(--lamp); background: color-mix(in srgb, var(--lamp) 9%, transparent); }
.sqlguide .prose figure.flow li.hl b { color: var(--lamp); }
@media (max-width: 600px) { .sqlguide .prose figure.flow li { grid-template-columns: 26px 1fr; }
  .sqlguide .prose figure.flow li span { grid-column: 2; } }
.sqlguide .prose figure.plan { margin: 20px 0 26px; }
.sqlguide .prose figure.plan figcaption { font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 10px; }
.sqlguide .prose figure.plan ul.tree, .sqlguide .prose figure.plan ul.tree ul { list-style: none; margin: 0; padding: 0; }
.sqlguide .prose figure.plan ul.tree ul { margin-left: 18px; padding-left: 14px; border-left: 1px solid var(--rule); }
.sqlguide .prose figure.plan li { margin: 6px 0; position: relative; }
.sqlguide .prose figure.plan ul.tree ul > li::before { content: ""; position: absolute; left: -14px; top: 17px; width: 12px; border-top: 1px solid var(--rule); }
.sqlguide .prose figure.plan .node { display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 8px; padding: 6px 10px;
  border: 1px solid var(--rule); border-radius: 10px; max-width: 100%; }
.sqlguide .prose figure.plan .node b { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; font-weight: 600; }
.sqlguide .prose figure.plan .obj { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; color: var(--link); }
.sqlguide .prose figure.plan .rows { font-size: 12.5px; color: var(--muted); }
.sqlguide .prose figure.plan .ord { display: inline-grid; place-items: center; min-width: 22px; height: 22px; border-radius: 999px;
  font-size: 12px; font-variant-numeric: tabular-nums; background: var(--band, rgba(127,127,127,.12)); color: var(--muted); }
.sqlguide .prose figure.plan li.hl > .node { border-color: var(--lamp); background: color-mix(in srgb, var(--lamp) 9%, transparent); }
.sqlguide .prose figure.plan li.hl > .node b { color: var(--lamp); }
.sqlguide .prose figure.plan .plan-key { font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
.sqlguide .prose figure.plan details.raw { margin-top: 6px; }
.sqlguide .prose figure.plan details.raw summary { font-size: 13px; color: var(--link); cursor: pointer; }
.sqlguide .prose figure.plan details pre { font-size: 12px; }
.sqlguide .lede-2 { max-width: 680px; margin: 12px auto 0; text-wrap: balance; }
.sqlguide .az-tools { max-width: 1100px; margin: 0 auto 8px; padding: 0 22px; display: grid; gap: 10px; }
.sqlguide .az-tools label { font-size: 13px; font-weight: 600; color: var(--muted); }
.sqlguide .az-tools input { font: inherit; padding: 10px 14px; border: 1px solid var(--rule); border-radius: 12px; background: var(--bg); color: var(--text); max-width: 520px; }
.sqlguide .az-jump { display: flex; flex-wrap: wrap; gap: 4px 10px; font-weight: 600; }
.sqlguide .az-list { max-width: 1100px; margin: 0 auto; padding: 0 22px 40px; }
.sqlguide .az-letter h2 { margin-top: 32px; }
.sqlguide ul.az { list-style: none; padding: 0; margin: 0; }
.sqlguide ul.az li { display: grid; grid-template-columns: minmax(220px, 2fr) 3fr minmax(110px, 1fr); gap: 6px 16px; padding: 9px 0;
  border-bottom: 1px solid var(--rule); align-items: baseline; }
.sqlguide ul.az li .what { color: var(--muted); font-size: 15px; }
.sqlguide ul.az li .where { text-align: right; display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }
.sqlguide ul.az li .pg { font-variant-numeric: tabular-nums; font-weight: 600; }
.sqlguide ul.az li .soon { color: var(--muted); font-size: 13px; }
.sqlguide ul.az li.later .nm code { opacity: .75; }
@media (max-width: 700px) { .sqlguide ul.az li { grid-template-columns: 1fr; }
  .sqlguide ul.az li .where { justify-content: flex-start; text-align: left; } }
.sqlguide .parts ul.pages { list-style: none; padding-left: 0; }
.sqlguide .parts ul.pages li { padding: 4px 0; }
.sqlguide .parts .pid { display: inline-block; min-width: 42px; color: var(--muted); font-variant-numeric: tabular-nums; }
.sqlguide .parts details.soon summary { opacity: .6; }