/* ============================================================================
   nautris docs · shell layer on top of styles.css (the shared system).
   Sidebar + content grid, doc typography, callouts, tables, diagrams.
   ==========================================================================*/

.skip-link {
  position: fixed; top: -56px; left: 16px; z-index: 200;
  padding: 12px 18px; border-radius: 10px;
  background: var(--accent); color: #04121a; font-weight: 600; font-size: 13.5px;
  transition: top 0.2s ease;
}
.skip-link:focus-visible { top: 12px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---- layout: sidebar + article ---- */
.docs { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 52px; padding: 36px 0 90px; align-items: start; }
.side { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 2px; max-height: calc(100dvh - 110px); overflow-y: auto; padding-right: 6px; }
.side-group { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--fg-3); font-weight: 700; margin: 18px 0 6px 10px; }
.side-group:first-child { margin-top: 0; }
.side a { color: var(--fg-2); font-size: 14px; padding: 7px 12px; border-radius: 7px; border-left: 2px solid transparent; transition: var(--t); }
.side a:hover { color: var(--fg); background: var(--muted); }
.side a[aria-current="page"] { color: var(--fg); font-weight: 550; background: var(--muted); }
.side a.sub { font-size: 13px; color: var(--fg-3); padding: 5px 12px 5px 24px; }
.side a.sub:hover { color: var(--fg); }
.side a.sub.active { color: var(--accent); border-left-color: var(--accent); }

.doc-body { max-width: 760px; min-width: 0; }
.doc-body .eyebrow { display: inline-block; margin-bottom: 12px; }
.doc-body h1 { font-size: clamp(28px, 4.4vw, 40px); font-weight: 700; letter-spacing: -0.03em; margin-bottom: 14px; }
.doc-body .lead { color: var(--fg-2); font-size: 16.5px; line-height: 1.7; margin-bottom: 8px; }
.doc-body h2 { font-size: 24px; font-weight: 650; letter-spacing: -0.02em; margin: 46px 0 14px; padding-top: 14px; scroll-margin-top: 88px; }
.doc-body h3 { font-size: 17.5px; font-weight: 600; margin: 28px 0 10px; }
.doc-body p { color: var(--fg-2); margin-bottom: 14px; line-height: 1.72; }
.doc-body ul, .doc-body ol { color: var(--fg-2); margin: 0 0 14px 20px; line-height: 1.7; }
.doc-body li { margin-bottom: 6px; }
.doc-body a { color: var(--accent); }

pre { position: relative; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px 18px; overflow-x: auto; margin-bottom: 16px; }
code { font-family: var(--mono); font-size: 13.5px; }
p code, li code, td code { background: var(--muted); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
pre code { color: var(--fg-2); }

.doc-body table { width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 16px; display: block; overflow-x: auto; }
.doc-body th, .doc-body td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); }
.doc-body th { color: var(--fg-3); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }

.callout { background: var(--accent-dim); border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); border-radius: var(--radius-sm); padding: 14px 16px; font-size: 14.5px; color: var(--fg-2); margin-bottom: 16px; }
.callout.warn { background: color-mix(in srgb, #f0a24b 9%, transparent); border-color: color-mix(in srgb, #f0a24b 35%, transparent); }
.callout.ok { background: color-mix(in srgb, #35d6a0 9%, transparent); border-color: color-mix(in srgb, #35d6a0 35%, transparent); }

/* ---- code copy button (injected by search.js on bare pre>code blocks) ---- */
.code-copy {
  position: absolute; top: 8px; right: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em;
  color: var(--fg-3); background: var(--surface);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 3px 9px; cursor: pointer; transition: var(--t);
}
.code-copy:hover, .code-copy.done { color: var(--accent); border-color: var(--accent); }
@media (hover: hover) and (pointer: fine) {
  .code-copy { opacity: 0; }
  pre:hover .code-copy, .code-copy:focus-visible { opacity: 1; }
}

/* ---- prev/next footer nav ---- */
.pager { display: flex; justify-content: space-between; gap: 14px; margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--border); }
.pager a {
  display: flex; flex-direction: column; gap: 3px; padding: 14px 18px; min-width: 0;
  border: 1px solid var(--border); border-radius: var(--radius-sm); transition: var(--t);
}
.pager a:hover { border-color: var(--border-strong); background: var(--muted); }
.pager .dir { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); }
.pager .ttl { font-size: 14.5px; font-weight: 550; color: var(--fg); }
.pager a.next { margin-left: auto; text-align: right; }

/* ---- overview cards ---- */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 26px 0 8px; }
@media (max-width: 720px) { .cards { grid-template-columns: 1fr; } }
.card {
  display: flex; flex-direction: column; gap: 6px; padding: 20px 22px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface);
  transition: var(--t);
}
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.card .t { font-size: 16px; font-weight: 600; color: var(--fg); display: flex; align-items: center; gap: 9px; }
.card .t svg { color: var(--accent); flex: none; }
.card p { font-size: 13.5px; color: var(--fg-3); margin: 0; }

/* ---- diagrams ---- */
.diagram { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); padding: 18px; margin: 18px 0 8px; overflow-x: auto; }
.diagram svg { display: block; width: 100%; height: auto; min-width: 560px; }
.diagram + .dg-cap { font-family: var(--mono); font-size: 12px; color: var(--fg-3); margin: 8px 0 24px; text-align: center; }
.dg-box { fill: var(--surface-2); stroke: var(--border-strong); rx: 9; }
.dg-box.hl { stroke: var(--accent); fill: color-mix(in srgb, var(--accent) 7%, var(--surface-2)); }
.dg-box.vi { stroke: var(--violet); fill: color-mix(in srgb, var(--violet) 7%, var(--surface-2)); }
.dg-box.dim { stroke: var(--border); stroke-dasharray: 4 4; fill: transparent; }
.dg-t { font-family: var(--mono); font-size: 12px; fill: var(--fg); }
.dg-t.sm { font-size: 10.5px; fill: var(--fg-3); }
.dg-t.hl { fill: var(--accent); font-weight: 600; }
.dg-t.vi { fill: var(--violet); }
.dg-edge { stroke: var(--border-strong); stroke-width: 1.4; fill: none; }
.dg-edge.hl { stroke: var(--accent); }
.dg-edge.cut { stroke: var(--danger); stroke-dasharray: 5 4; }
.dg-arrow { fill: var(--border-strong); }
.dg-arrow.hl { fill: var(--accent); }

/* ---- search ---- */
.search-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border); color: var(--fg-3);
  border-radius: var(--radius-sm); padding: 8px 12px; font: inherit; font-size: 13.5px;
  cursor: pointer; transition: var(--t);
}
.search-btn:hover { color: var(--fg); border-color: var(--border-strong); }
.search-btn kbd {
  font-family: var(--mono); font-size: 10.5px; color: var(--fg-3);
  border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px;
}
@media (max-width: 700px) { .search-btn span, .search-btn kbd { display: none; } .search-btn { padding: 8px 10px; } }

.sd { position: fixed; inset: 0; z-index: 300; }
.sd[hidden] { display: none; }
.sd-back { position: absolute; inset: 0; background: rgba(3, 4, 8, 0.6); backdrop-filter: blur(3px); }
.sd-box {
  position: relative; max-width: 640px; margin: clamp(40px, 12vh, 120px) auto 0;
  background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden;
  width: calc(100% - 32px);
}
.sd-bar { display: flex; align-items: center; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--border); color: var(--fg-3); }
.sd-input { flex: 1; background: transparent; border: 0; color: var(--fg); font: inherit; font-size: 15.5px; }
.sd-input:focus { outline: none; }
.sd-esc {
  font-family: var(--mono); font-size: 10.5px; color: var(--fg-3); cursor: pointer;
  background: var(--muted); border: 1px solid var(--border); border-radius: 5px; padding: 3px 7px;
}
.sd-results { max-height: min(52dvh, 420px); overflow-y: auto; padding: 8px; }
.sd-empty { padding: 26px 16px; text-align: center; color: var(--fg-3); font-size: 14px; }
.sd-item {
  display: flex; flex-direction: column; gap: 3px;
  padding: 10px 12px; border-radius: 8px; border-left: 2px solid transparent;
}
.sd-item:hover, .sd-item.sel { background: var(--muted); border-left-color: var(--accent); }
.sd-t { font-size: 14.5px; font-weight: 550; color: var(--fg); display: flex; align-items: center; gap: 8px; }
.sd-t mark, .sd-x mark { background: var(--accent-dim); color: var(--accent); border-radius: 3px; padding: 0 1px; }
.sd-api {
  font-family: var(--mono); font-size: 9.5px; font-weight: 700; letter-spacing: 0.07em;
  color: var(--violet); border: 1px solid color-mix(in srgb, var(--violet) 40%, transparent);
  border-radius: 4px; padding: 1px 5px; flex: none;
}
.sd-x { font-size: 13px; color: var(--fg-2); line-height: 1.55; }
.sd-p { font-family: var(--mono); font-size: 10.5px; color: var(--fg-3); letter-spacing: 0.05em; }
.sd-foot {
  display: flex; gap: 18px; padding: 10px 16px; border-top: 1px solid var(--border);
  color: var(--fg-3); font-size: 12px;
}
.sd-foot kbd {
  font-family: var(--mono); font-size: 10px; border: 1px solid var(--border);
  border-radius: 4px; padding: 1px 5px; margin-right: 3px;
}

/* ---- responsive ---- */
@media (max-width: 900px) {
  .docs { grid-template-columns: 1fr; gap: 24px; }
  .side { position: static; max-height: none; flex-direction: row; flex-wrap: wrap; gap: 6px; overflow: visible; }
  .side-group { width: 100%; margin: 8px 0 2px 0; }
  .side a.sub { display: none; }
  .side a { border: 1px solid var(--border); border-left-width: 1px; min-height: 44px; display: inline-flex; align-items: center; }
  /* Let architecture/deployment diagrams scale to the column instead of
     forcing a 560px side-scroll inside their wrapper on phones. */
  .diagram svg { min-width: 0; }
}

/* Long inline tokens (image refs like ghcr.io/..., endpoints) wrap on narrow
   columns instead of being clipped by the body's overflow-x:hidden. */
p code, li code, td code { overflow-wrap: anywhere; }

/* ---- mobile "On this page" TOC (static markup on the content pages; search.js wires collapse-after-jump) ---- */
.toc-mobile { display: none; }
@media (max-width: 900px) {
  .toc-mobile {
    display: block; margin: 4px 0 24px;
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    background: var(--surface); overflow: hidden;
  }
  .toc-mobile > summary {
    list-style: none; cursor: pointer; min-height: 44px;
    display: flex; align-items: center; gap: 8px; padding: 0 16px;
    font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.08em;
    text-transform: uppercase; color: var(--fg-3); font-weight: 700;
  }
  .toc-mobile > summary::-webkit-details-marker { display: none; }
  .toc-mobile > summary::after {
    content: ""; width: 7px; height: 7px; margin-left: auto;
    border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
    transform: rotate(45deg); transition: transform 0.2s ease;
  }
  .toc-mobile[open] > summary::after { transform: rotate(-135deg); }
  .toc-mobile[open] > summary { border-bottom: 1px solid var(--border); }
  .toc-mobile nav { display: flex; flex-direction: column; padding: 6px 8px 8px; }
  .toc-mobile nav a {
    color: var(--fg-2); font-size: 14px; padding: 0 12px; min-height: 44px;
    display: flex; align-items: center; border-radius: 6px;
  }
  .toc-mobile nav a:hover { background: var(--muted); color: var(--fg); }
}