/* ================= multi-page additions ================= */
.nav-links a[aria-current="page"] { color: var(--text); box-shadow: inset 0 -2px 0 var(--copper); padding-bottom: 4px; }
.menu-btn { all: unset; display: none; cursor: pointer; font: 500 14px/1 var(--body); color: var(--text); border: 1px solid var(--rule); padding: 10px 12px; margin-left: auto; }
.menu-btn:focus-visible { outline: 2px solid var(--copper); }
.menu { display: none; border-top: 1px solid var(--rule); background: var(--graphite); }
.menu a { display: block; padding: 14px var(--gutter); text-decoration: none; border-bottom: 1px solid var(--rule); color: var(--text); font-weight: 500; }
.menu a[aria-current="page"] { color: var(--copper); }
@media (max-width: 860px) {
  .menu-btn { display: inline-block; }
  .nav .btn { display: none; }
  .menu:not([hidden]) { display: block; }
}

/* inner page header */
.phead { position: relative; padding-block: clamp(56px, 8vw, 104px) clamp(48px, 6vw, 80px); border-bottom: 1px solid var(--rule); overflow: hidden; }
.phead::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 10px; border-top: 1.5px solid var(--c, var(--copper)); background: repeating-linear-gradient(135deg, var(--c, var(--copper)) 0 1.5px, transparent 1.5px 7px); opacity: 0.8; }
.phead h1 { font-family: var(--display); font-stretch: 68%; font-weight: 900; text-transform: uppercase; font-size: clamp(48px, 7.5vw, 104px); line-height: 0.9; letter-spacing: -0.01em; margin: 0 0 24px; max-width: 14ch; text-wrap: balance; }
.phead .ipid { font-family: var(--mono); font-stretch: normal; font-weight: 500; text-transform: none; font-size: clamp(15px, 1.6vw, 18px); color: var(--copper-hi); margin: 0 0 12px; letter-spacing: 0; max-width: none; }
.phead h1 em { font-style: normal; color: var(--copper); }
.phead .title2 { font-family: var(--display); font-stretch: 72%; font-weight: 900; text-transform: uppercase; font-size: clamp(40px, 6vw, 80px); line-height: 0.92; margin: 0 0 20px; max-width: 18ch; text-wrap: balance; }
.phead .lede { color: #b3bdc8; }
.phead .facts { display: flex; flex-wrap: wrap; gap: 8px 28px; margin-top: 32px; font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.phead .facts b { color: var(--text); font-weight: 500; font-variant-numeric: tabular-nums; }
.crumbs { font-family: var(--mono); font-size: 12.5px; color: var(--muted); margin: 0 0 22px; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--text); }
.crumbs span[aria-hidden] { color: var(--rule); }
.more-link { display: inline-flex; gap: 8px; align-items: center; margin-top: 28px; font-weight: 600; text-decoration: none; color: var(--copper); border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.band-light .more-link { color: var(--copper-deep); }
.more-link:hover { color: var(--copper-hi); }

/* home: domains */
.domains3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 48px; border-top: 2px solid var(--ink); }
@media (max-width: 900px) { .domains3 { grid-template-columns: minmax(0, 1fr); } }
.domains3 > div { padding: 28px 28px 32px 0; border-bottom: 1px solid var(--wafer-2); }
.domains3 > div + div { padding-left: 28px; border-left: 1px solid var(--wafer-2); }
@media (max-width: 900px) { .domains3 > div + div { padding-left: 0; border-left: 0; } }
.domains3 .sw { height: 10px; border: 1.5px solid var(--c); background: repeating-linear-gradient(135deg, var(--c) 0 1.5px, transparent 1.5px 7px); margin-bottom: 18px; }
.domains3 h3 { font-family: var(--display); font-stretch: 85%; font-weight: 800; text-transform: uppercase; font-size: 30px; line-height: 1; margin: 0 0 12px; }
.domains3 p { margin: 0 0 14px; color: var(--ink-muted); }
.domains3 ul { margin: 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.domains3 li { font-family: var(--mono); font-size: 12px; background: var(--wafer-2); padding: 2px 8px; }

/* home: featured screenshot */
.feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 32px 56px; align-items: center; }
@media (max-width: 960px) { .feature { grid-template-columns: minmax(0, 1fr); } }
.feature .frame { box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.7); margin: 0; }

/* CTA band */
.cta-band { background: var(--copper); color: var(--ink); padding-block: clamp(56px, 7vw, 88px); }
.cta-band .wrap { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 24px 48px; align-items: end; }
@media (max-width: 860px) { .cta-band .wrap { grid-template-columns: minmax(0, 1fr); } }
.cta-band h2 { margin: 0; }
.cta-band p { margin: 0 0 20px; font-size: 17px; max-width: 48ch; }
.btn-ink { background: var(--ink); color: var(--text); }
.btn-ink:hover { background: var(--graphite-3); }

/* tables (dark default, light variant) */
.tbl { overflow-x: auto; margin-top: 32px; }
.tbl table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 600px; }
.tbl th { text-align: left; font-weight: 600; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); border-bottom: 2px solid var(--muted); padding: 12px 16px 10px 0; }
.tbl td { border-bottom: 1px solid var(--rule); padding: 11px 16px 11px 0; vertical-align: top; }
.tbl td code, .tbl td.mono { font-family: var(--mono); font-size: 13px; }
.tbl a { color: var(--copper-hi); text-decoration: none; }
.tbl a:hover { text-decoration: underline; }
.band-light .tbl th { color: var(--ink-muted); border-bottom-color: var(--ink); }
.band-light .tbl td { border-bottom-color: var(--wafer-2); }
.band-light .tbl a { color: var(--copper-deep); }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
h3.sub { font-family: var(--display); font-stretch: 100%; font-weight: 700; font-size: 24px; margin: 64px 0 6px; }
p.sub { margin: 0; color: var(--muted); max-width: 70ch; }
.band-light p.sub { color: var(--ink-muted); }

/* format chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.chips span { font-family: var(--mono); font-size: 12.5px; border: 1px solid var(--rule); padding: 4px 10px; color: #c3ccd6; }

/* IP: list rows as links */
.ip-link { display: grid; grid-template-columns: minmax(0, 230px) minmax(0, 1fr) auto; gap: 4px 20px; align-items: baseline; padding: 12px 4px; text-decoration: none; border-bottom: 1px solid var(--rule); }
.ip-link:hover { background: var(--graphite-2); }
.ip-link:focus-visible { outline: 2px solid var(--copper); outline-offset: -2px; }
.ip-link .ip-d { grid-column: 2 / 4; color: var(--muted); font-size: 14px; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
@media (max-width: 640px) { .ip-link { grid-template-columns: minmax(0, 1fr); } .ip-link .ip-d { grid-column: 1; } .ip-link .pills { justify-content: flex-start; } }
.pill.fr { border-color: var(--m1); color: var(--m1); }

/* IP: category cards */
.cats { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); margin-top: 40px; }
.cat { background: var(--graphite); padding: 22px 22px 24px; text-decoration: none; display: flex; flex-direction: column; gap: 10px; }
.cat:hover { background: var(--graphite-2); }
.cat:focus-visible { outline: 2px solid var(--copper); outline-offset: -2px; }
.cat::before { content: ""; height: 6px; border: 1px solid var(--c); background: repeating-linear-gradient(135deg, var(--c) 0 1px, transparent 1px 6px); }
.cat h3 { font-family: var(--display); font-stretch: 90%; font-weight: 700; font-size: 20px; line-height: 1.15; margin: 0; }
.cat p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.5; }
.cat .cnt { margin-top: auto; display: flex; flex-wrap: wrap; gap: 4px 16px; font-family: var(--mono); font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.cat .cnt b { color: var(--text); font-weight: 500; }
.meter { height: 4px; background: var(--rule); position: relative; }
.meter i { position: absolute; inset: 0 auto 0 0; background: var(--diff); }
.meter u { position: absolute; inset: 0 auto 0 0; background: var(--m1); }

/* IP: quality bar */
.qbar { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px 32px; margin-top: 32px; padding: 0; list-style: none; }
.qbar li { border-top: 1px solid var(--wafer-2); padding-top: 14px; color: var(--ink-muted); font-size: 15px; }
.qbar li b { display: block; color: var(--ink); font-weight: 600; margin-bottom: 4px; }
.cli { margin-top: 24px; background: var(--graphite); color: var(--text); font-family: var(--mono); font-size: 14px; padding: 16px 18px; overflow-x: auto; white-space: pre; }
.cli .c { color: var(--muted); }
.targets3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: 32px; border-top: 2px solid var(--ink); }
@media (max-width: 860px) { .targets3 { grid-template-columns: minmax(0, 1fr); } }
.targets3 > div { padding: 22px 24px 24px 0; border-bottom: 1px solid var(--wafer-2); }
.targets3 > div + div { padding-left: 24px; border-left: 1px solid var(--wafer-2); }
@media (max-width: 860px) { .targets3 > div + div { padding-left: 0; border-left: 0; } }
.targets3 b { font-family: var(--display); font-stretch: 72%; font-weight: 800; font-size: 44px; line-height: 1; display: block; font-variant-numeric: tabular-nums; }
.targets3 h4 { margin: 8px 0 6px; font-size: 17px; }
.targets3 p { margin: 0; color: var(--ink-muted); font-size: 15px; }

/* IP: category page groups */
.group { margin-top: 56px; }
.group:first-child { margin-top: 0; }
.group h2 { font-size: clamp(26px, 3vw, 34px); margin-bottom: 6px; }
.group .gmeta { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.jump { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.jump a { font-size: 13px; text-decoration: none; border: 1px solid var(--rule); padding: 5px 10px; color: var(--muted); }
.jump a:hover { color: var(--text); border-color: var(--muted); }

/* IP: datasheet */
.ds { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 40px 56px; }
@media (max-width: 960px) { .ds { grid-template-columns: minmax(0, 1fr); } }
.ds-main > p.desc { font-size: 18px; color: #c3ccd6; max-width: 66ch; margin: 0; }
.ds-main h2 { font-size: clamp(24px, 2.6vw, 30px); margin: 48px 0 0; }
.ds-main .tbl { margin-top: 16px; }
.ds-main ul.plain { margin: 14px 0 0; padding-left: 18px; color: #c3ccd6; }
.ds-main ul.plain li + li { margin-top: 6px; }
.ds-main ul.plain a { color: var(--copper-hi); }
.ds-side { align-self: start; border: 1px solid var(--rule); background: var(--graphite-2); }
.ds-side h2 { font-family: var(--display); font-stretch: 125%; font-weight: 700; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin: 0; padding: 14px 18px; border-bottom: 1px solid var(--rule); }
.ds-side dl { margin: 0; padding: 14px 18px 18px; display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 10px 16px; font-size: 14px; }
.ds-side dt { color: var(--muted); font-size: 12px; padding-top: 1px; }
.ds-side dd { margin: 0; overflow-wrap: anywhere; }
.ds-side .cli { margin: 0; font-size: 12.5px; padding: 12px 18px; border-top: 1px solid var(--rule); white-space: pre-wrap; overflow-wrap: anywhere; background: var(--graphite); }
.tier { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 13px; }
.tier::before { content: ""; width: 10px; height: 10px; background: var(--tc, var(--muted)); flex: none; }
.honest { margin-top: 22px; border-left: 3px solid var(--tc, var(--muted)); padding: 10px 14px; background: var(--graphite-2); color: #c3ccd6; font-size: 14.5px; max-width: 70ch; }
.ds-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 64px; padding-top: 18px; border-top: 1px solid var(--rule); font-size: 14px; flex-wrap: wrap; }
.ds-nav a { text-decoration: none; color: var(--muted); max-width: 45%; }
.ds-nav a:hover { color: var(--text); }
.ds-nav b { display: block; color: var(--text); font-weight: 500; }
.ds-nav .r { text-align: right; margin-left: auto; }

/* technology: chain */
.chain { margin-top: 40px; border-top: 2px solid var(--ink); }
.chain-row { display: grid; grid-template-columns: 200px minmax(0, 1fr) minmax(0, 1fr); gap: 8px 28px; padding: 16px 0; border-bottom: 1px solid var(--wafer-2); }
.chain-row h4 { margin: 0; font-family: var(--display); font-stretch: 100%; font-weight: 700; font-size: 17px; }
.chain-row p { margin: 0; color: var(--ink-muted); font-size: 15px; }
.chain-row .lbl { display: block; font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: 2px; }
@media (max-width: 760px) { .chain-row { grid-template-columns: minmax(0, 1fr); } }

/* principles list (dark) */
.princ { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; margin-top: 40px; border-top: 1px solid var(--rule); }
@media (max-width: 760px) { .princ { grid-template-columns: minmax(0, 1fr); } }
.princ div { padding: 20px 0; border-bottom: 1px solid var(--rule); }
.princ b { display: block; font-size: 17px; margin-bottom: 6px; }
.princ p { margin: 0; color: #b3bdc8; }

/* partners: steps + faq */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin-top: 40px; list-style: none; padding: 0; counter-reset: s; border-top: 2px solid var(--muted); }
@media (max-width: 900px) { .steps { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
@media (max-width: 520px) { .steps { grid-template-columns: minmax(0, 1fr); } }
.steps li { counter-increment: s; padding: 20px 24px 24px 0; border-bottom: 1px solid var(--rule); }
.steps li::before { content: counter(s, decimal-leading-zero); display: block; font-family: var(--mono); font-size: 13px; color: var(--copper); margin-bottom: 10px; }
.steps b { display: block; font-family: var(--display); font-stretch: 100%; font-size: 19px; margin-bottom: 6px; }
.steps span { color: var(--muted); font-size: 15px; }
.faq { margin-top: 32px; border-top: 1px solid var(--rule); max-width: 900px; }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; padding: 18px 0; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--copper); }
.faq details[open] summary::after { content: "-"; }
.faq summary:focus-visible { outline: 2px solid var(--copper); }
.faq p { margin: 0 0 18px; color: #b3bdc8; max-width: 72ch; }
.notfound { min-height: 50vh; }

.rungs { grid-template-columns: repeat(8, minmax(84px, 1fr)); }

/* sitemap page */
.smap { display: grid; grid-template-columns: minmax(0, 260px) minmax(0, 1fr); gap: 32px 64px; }
@media (max-width: 760px) { .smap { grid-template-columns: minmax(0, 1fr); } }
.smap h2 { font-size: 28px; margin-bottom: 14px; }
.smap-main { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.smap a { color: var(--text); text-decoration: none; }
.smap a:hover { color: var(--copper-hi); }
.smap-cat { border-bottom: 1px solid var(--rule); }
.smap-cat:first-of-type { border-top: 1px solid var(--rule); }
.smap-cat summary { cursor: pointer; display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; font-weight: 500; list-style: none; }
.smap-cat summary::-webkit-details-marker { display: none; }
.smap-cat summary .num { color: var(--muted); font-family: var(--mono); font-size: 12.5px; }
.smap-cat summary:focus-visible { outline: 2px solid var(--copper); }
.smap-open { margin: 0 0 10px; font-size: 14px; }
.smap-open a { color: var(--copper-hi); }
.smap-list { columns: 2 300px; column-gap: 32px; margin: 0 0 18px; padding: 0; list-style: none; font-size: 14px; }
.smap-list li { break-inside: avoid; padding: 3px 0; }
.smap-list code { font-family: var(--mono); font-size: 11.5px; color: var(--muted); }