/* Bare Metal Cyber — NIST SP 800-53 Learning Center v0.2.12
   v0.2.13-R3 — NIST hero typography contrast correction
   v0.2.13-R4 — official OSCAL list-label and hanging-indent correction */
.page-wiki-nist-80053 { background: var(--paper-3); }
.n53-hero { position:relative; overflow:hidden; padding:clamp(54px,7vw,96px) 0; color:#fff; background:radial-gradient(circle at 78% 18%,rgba(47,111,147,.35),transparent 32%),linear-gradient(135deg,#050708 0%,#111a20 54%,#202d35 100%); }
.n53-hero::after { content:""; position:absolute; inset:0; pointer-events:none; opacity:.22; background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px); background-size:36px 36px; mask-image:linear-gradient(to bottom,#000,transparent 90%); }
.n53-hero .shell { position:relative; z-index:1; }
.n53-hero__layout { display:grid; grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr); gap:clamp(28px,5vw,76px); align-items:center; }
.n53-hero h1 { max-width:900px; margin:.25rem 0 1rem; color:#fff!important; -webkit-text-fill-color:#fff!important; opacity:1; font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif!important; font-stretch:normal; font-size:clamp(2.25rem,5.1vw,4.75rem); font-weight:850; line-height:.98; letter-spacing:-.045em; text-rendering:optimizeLegibility; }
.n53-hero__lede { max-width:790px; margin:0; color:#cfdae0; font-size:clamp(1rem,1.8vw,1.25rem); }
.n53-breadcrumbs { display:flex; flex-wrap:wrap; gap:.55rem; margin-bottom:1.1rem; color:#aebdc6; font-size:.82rem; }
.n53-breadcrumbs a { color:#dceaf1; text-decoration:none; }
.n53-breadcrumbs a:hover { text-decoration:underline; }
.n53-hero__stats { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }
.n53-stat { min-height:112px; padding:18px; border:1px solid rgba(255,255,255,.14); border-radius:14px; background:rgba(255,255,255,.055); backdrop-filter:blur(12px); box-shadow:0 16px 36px rgba(0,0,0,.18); }
.n53-stat strong { display:block; color:#fff; font-size:clamp(1.75rem,3vw,2.45rem); line-height:1; }
.n53-stat span { display:block; margin-top:8px; color:#aebdc6; font-size:.75rem; font-weight:800; letter-spacing:.08em; text-transform:uppercase; }
.n53-band { padding:24px 0; border-bottom:1px solid var(--line); background:#fff; }
.n53-band__inner { display:flex; flex-wrap:wrap; justify-content:space-between; align-items:center; gap:18px; }
.n53-band p { margin:0; color:var(--steel); }
.n53-badges,.n53-tags { display:flex; flex-wrap:wrap; gap:7px; }
.n53-badge { display:inline-flex; align-items:center; min-height:28px; padding:4px 9px; border:1px solid #bbcad2; border-radius:999px; background:#f4f8fa; color:#294653; font-size:.72rem; font-weight:850; letter-spacing:.04em; text-transform:uppercase; }
.n53-badge--low { background:#e9f6ed; border-color:#b7dbc1; color:#245d38; }
.n53-badge--moderate { background:#fff7df; border-color:#e7d08c; color:#705716; }
.n53-badge--high { background:#f7e9ec; border-color:#e2b4bd; color:#7d2430; }
.n53-badge--privacy { background:#edeafb; border-color:#c9c1ee; color:#4e3f86; }
.n53-badge--withdrawn { background:#f2f2f2; border-color:#c8c8c8; color:#5f6265; }
.n53-section { padding:clamp(42px,6vw,78px) 0; }
.n53-section--steel { background:linear-gradient(180deg,#e8edef,#f4f7f8); border-block:1px solid var(--line); }
.n53-heading { display:flex; justify-content:space-between; align-items:end; gap:30px; margin-bottom:28px; }
.n53-heading h2 { margin:.25rem 0 0; font-size:clamp(1.75rem,3vw,2.7rem); line-height:1.08; }
.n53-heading > p { max-width:600px; margin:0; color:var(--steel); }
.n53-family-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:15px; }
.n53-family-card { position:relative; min-height:230px; padding:22px; border:1px solid var(--line); border-radius:16px; background:#fff; text-decoration:none; box-shadow:var(--shadow-sm); transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease; }
.n53-family-card:hover { transform:translateY(-3px); border-color:#9eb6c3; box-shadow:var(--shadow-md); }
.n53-family-card__code { display:inline-grid; place-items:center; width:48px; height:48px; border-radius:10px; color:#fff; background:linear-gradient(145deg,var(--accent),var(--accent-deep)); font-size:.92rem; font-weight:900; letter-spacing:.08em; }
.n53-family-card h3 { margin:20px 0 8px; font-size:1.15rem; line-height:1.2; }
.n53-family-card p { margin:0; color:var(--steel); font-size:.9rem; }
.n53-family-card small { position:absolute; left:22px; right:22px; bottom:18px; padding-top:12px; border-top:1px solid var(--line); color:var(--accent-deep); font-weight:800; }
.n53-filter { padding:20px; border:1px solid var(--line); border-radius:16px; background:#fff; box-shadow:var(--shadow-sm); }
.n53-filter__row { display:grid; grid-template-columns:minmax(240px,2fr) repeat(3,minmax(150px,1fr)) auto; gap:10px; align-items:end; }
.n53-filter label { display:grid; gap:6px; color:var(--ink-2); font-size:.74rem; font-weight:850; letter-spacing:.05em; text-transform:uppercase; }
.n53-filter input,.n53-filter select { width:100%; min-height:44px; padding:9px 11px; border:1px solid #b9c7cf; border-radius:8px; background:#fff; color:var(--ink); }
.n53-filter__status { margin:13px 0 0; color:var(--steel); font-size:.88rem; }
.n53-control-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px; margin-top:22px; }
.n53-control-card { padding:20px; border:1px solid var(--line); border-radius:14px; background:#fff; box-shadow:var(--shadow-sm); }
.n53-control-card[hidden] { display:none; }
.n53-control-card__top { display:flex; justify-content:space-between; gap:12px; align-items:flex-start; }
.n53-control-card__id { color:var(--accent-deep); font-weight:950; letter-spacing:.04em; }
.n53-control-card__kind { color:var(--steel); font-size:.7rem; font-weight:850; letter-spacing:.08em; text-transform:uppercase; }
.n53-control-card h2,.n53-control-card h3 { margin:12px 0 8px; font-size:1.05rem; line-height:1.22; }
.n53-control-card h2 a,.n53-control-card h3 a { text-decoration:none; }
.n53-control-card h2 a:hover,.n53-control-card h3 a:hover { color:var(--accent-deep); text-decoration:underline; }
.n53-control-card p { margin:0 0 14px; color:var(--steel); font-size:.88rem; }
.n53-control-card__footer { display:flex; flex-wrap:wrap; justify-content:space-between; gap:8px; align-items:center; }
.n53-control-card__footer > a { color:var(--accent-deep); font-size:.85rem; font-weight:850; }
.n53-more { display:flex; justify-content:center; margin-top:26px; }
.n53-empty { padding:34px; margin-top:22px; border:1px dashed #aebdc6; border-radius:14px; text-align:center; background:#fff; }
.n53-layout { display:grid; grid-template-columns:minmax(0,1fr) 330px; gap:32px; align-items:start; }
.n53-article { min-width:0; }
.n53-article > section,.n53-panel { margin-bottom:22px; padding:clamp(20px,3vw,32px); border:1px solid var(--line); border-radius:16px; background:#fff; box-shadow:var(--shadow-sm); }
.n53-article h2 { margin:0 0 14px; font-size:1.55rem; line-height:1.15; }
.n53-article h3 { margin:1.2rem 0 .55rem; font-size:1.1rem; }
.n53-article p:last-child { margin-bottom:0; }
.n53-official { border-top:5px solid var(--accent); }
.n53-perspective { border-top:5px solid var(--news); }
.n53-official-label,.n53-bmc-label { display:inline-block; margin-bottom:12px; font-size:.72rem; font-weight:900; letter-spacing:.09em; text-transform:uppercase; }
.n53-official-label { color:var(--accent-deep); }
.n53-bmc-label { color:var(--news); }
/* Preserve the official OSCAL item labels (a., 1., i., etc.) while
   suppressing browser-generated ordered-list markers. The semantic <ol>
   structure remains intact; visual hierarchy comes from hanging indentation. */
.n53-tree { list-style:none; margin:.6rem 0 0; padding-left:0; }
.n53-tree .n53-tree { margin-top:.45rem; padding-left:1.55rem; }
.n53-tree__item { display:grid; grid-template-columns:max-content minmax(0,1fr); column-gap:.45rem; row-gap:.35rem; margin:.55rem 0; }
.n53-tree__label { grid-column:1; margin:0; font-weight:900; white-space:nowrap; }
.n53-tree__prose { grid-column:2; min-width:0; }
.n53-tree__item--unlabeled > .n53-tree__prose { grid-column:1 / -1; }
.n53-tree__item > .n53-tree { grid-column:1 / -1; }
.n53-params { display:grid; gap:10px; }
.n53-param { padding:14px; border-left:4px solid #9bb8c7; background:#f1f6f8; }
.n53-param strong { display:block; }
.n53-param small { display:block; margin-top:4px; color:var(--steel); }
.n53-method-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; }
.n53-method { padding:16px; border:1px solid var(--line); border-radius:12px; background:var(--paper-2); }
.n53-method h3 { margin:0 0 8px; color:var(--accent-deep); }
.n53-method ul { margin:0; padding-left:1.15rem; }
.n53-related { display:flex; flex-wrap:wrap; gap:8px; }
.n53-related a { padding:7px 10px; border:1px solid var(--line); border-radius:8px; background:var(--paper-2); color:var(--accent-deep); font-weight:850; text-decoration:none; }
.n53-related a:hover { background:var(--accent-soft); }
.n53-enhancement { scroll-margin-top:120px; margin:18px 0; padding:22px; border:1px solid var(--line); border-radius:14px; background:#fff; }
.n53-enhancement:target { outline:4px solid rgba(47,111,147,.22); border-color:var(--accent); }
.n53-enhancement__head { display:flex; justify-content:space-between; align-items:flex-start; gap:16px; }
.n53-enhancement__head h3 { margin:0; font-size:1.25rem; }
.n53-enhancement details { margin-top:14px; border-top:1px solid var(--line); padding-top:12px; }
.n53-enhancement summary { cursor:pointer; color:var(--accent-deep); font-weight:850; }
.n53-sidebar { position:sticky; top:calc(var(--header-height) + 22px); display:grid; gap:14px; }
.n53-sidebar-card { padding:20px; border:1px solid var(--line); border-radius:14px; background:#fff; box-shadow:var(--shadow-sm); }
.n53-sidebar-card > span { display:block; margin-bottom:6px; color:var(--steel); font-size:.7rem; font-weight:900; letter-spacing:.08em; text-transform:uppercase; }
.n53-sidebar-card strong { display:block; font-size:1.05rem; line-height:1.25; }
.n53-sidebar-card p { color:var(--steel); font-size:.88rem; }
.n53-sidebar-card a { color:var(--accent-deep); font-weight:800; }
.n53-book { display:grid; grid-template-columns:72px 1fr; gap:14px; align-items:center; }
.n53-book img { width:72px; border-radius:6px; box-shadow:0 8px 20px rgba(0,0,0,.16); }
.n53-plan-list { margin:10px 0 0; padding-left:1.1rem; font-size:.84rem; }
.n53-plan-list li { margin:.35rem 0; }
.n53-note { padding:18px; border-left:5px solid var(--accent); background:#edf5f8; }
.n53-legal { color:var(--steel); font-size:.82rem; }
.n53-source-list { padding-left:1.2rem; }
.n53-source-list li { margin:.45rem 0; }
.n53-source-list a { overflow-wrap:anywhere; }
.n53-family-summary { display:grid; grid-template-columns:1fr auto; gap:24px; align-items:center; padding:22px; border:1px solid var(--line); border-radius:16px; background:#fff; box-shadow:var(--shadow-sm); }
.n53-family-summary__code { display:grid; place-items:center; width:82px; height:82px; border-radius:16px; color:#fff; background:linear-gradient(145deg,var(--accent),#163b50); font-size:1.35rem; font-weight:950; }
.n53-count-row { display:flex; flex-wrap:wrap; gap:10px; margin-top:15px; }
.n53-count-row span { padding:7px 10px; border-radius:8px; background:var(--paper-3); color:var(--ink-2); font-size:.82rem; font-weight:800; }
@media (max-width:1050px){.n53-family-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.n53-control-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.n53-layout{grid-template-columns:1fr}.n53-sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}.n53-filter__row{grid-template-columns:repeat(2,minmax(0,1fr))}.n53-filter__row label:first-child{grid-column:1/-1}}
@media (max-width:760px){.n53-hero__layout{grid-template-columns:1fr}.n53-family-grid,.n53-control-grid{grid-template-columns:1fr}.n53-family-card{min-height:205px}.n53-heading{display:block}.n53-heading>p{margin-top:12px}.n53-method-grid,.n53-sidebar{grid-template-columns:1fr}.n53-filter__row{grid-template-columns:1fr}.n53-filter__row label:first-child{grid-column:auto}.n53-family-summary{grid-template-columns:1fr}.n53-family-summary__code{width:64px;height:64px}.n53-enhancement__head{display:block}.n53-enhancement__head .n53-badges{margin-top:10px}}