* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 20rem; margin: 0; overflow-x: clip; background: var(--titan-bg); }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
h1, h2, h3, h4 { font-family: "Segoe UI Variable Display", Aptos Display, Aptos, "Segoe UI", sans-serif; line-height: 1.08; letter-spacing: -.035em; text-wrap: balance; }
p, li { text-wrap: pretty; }
a { color: inherit; }
button, summary, a { -webkit-tap-highlight-color: transparent; }
button, summary { font: inherit; }
code, pre { font: .78rem/1.45 "Cascadia Code", "SFMono-Regular", Consolas, monospace; }
code { overflow-wrap: anywhere; }
a, button, summary { transition: color .18s ease, background-color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--titan-focus-ring); outline-offset: 3px; }

/* Hidden is a semantic state and must win over component display rules. */
[hidden] { display: none !important; }
.shell { width: min(100%, var(--titan-max-width)); margin: 0 auto; padding-inline: 1rem; }
.skip-link { position: fixed; top: .5rem; left: .5rem; z-index: 100; transform: translateY(-160%); border-radius: .45rem; background: var(--titan-ink); padding: .7rem 1rem; color: var(--titan-white); }
.skip-link:focus { transform: none; }
.eyebrow { color: var(--titan-green-600); font: 800 .72rem/1.2 "Cascadia Code", Consolas, monospace; letter-spacing: .09em; text-transform: uppercase; }
.muted { color: var(--titan-muted); }
.icon { width: 1.15rem; height: 1.15rem; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2; }

.button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  border: 1px solid var(--titan-border-strong);
  border-radius: .55rem;
  background: var(--titan-surface);
  padding: .65rem .95rem;
  font-weight: 800;
  text-decoration: none;
}

.button.primary { border-color: var(--titan-green-900); background: var(--titan-green-900); color: var(--titan-white); }
.button.secondary { background: var(--titan-surface); color: var(--titan-ink); }
.button:focus-visible { outline: 3px solid var(--titan-focus-ring); outline-offset: 3px; }
.button:hover:not([aria-disabled="true"]) { transform: translateY(-1px); box-shadow: var(--titan-shadow-soft); }
.button[aria-disabled="true"] { border-style: dashed; color: var(--titan-muted); cursor: not-allowed; box-shadow: none; }
.button small { font-size: .66rem; font-weight: 650; }
.cta-row, .badge-row { display: flex; flex-wrap: wrap; gap: .65rem; }
.text-cta { display: inline-flex; min-height: 2.75rem; align-items: center; color: var(--titan-green-800); font-weight: 800; text-underline-offset: .22rem; }

/* Landing: hero and Context Pack Preview */
.interactive-hero { border-bottom: 1px solid var(--titan-border); background: var(--titan-bg-warm); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2rem; align-items: center; padding-block: clamp(2.25rem, 7vw, 4.2rem); }
.hero-copy { min-width: 0; }
.product-badge { display: inline-flex; min-height: 2rem; align-items: center; gap: .45rem; border: 1px solid var(--titan-green-border); border-radius: 99rem; background: var(--titan-green-50); padding: .28rem .65rem; color: var(--titan-current); font-size: .78rem; font-weight: 750; }
.product-badge span { width: .48rem; height: .48rem; border-radius: 50%; background: var(--titan-green-500); box-shadow: 0 0 0 .18rem var(--titan-green-100); }
.interactive-hero h1 { max-width: 20ch; margin-top: 1rem; font-size: clamp(2.3rem, 10vw, 3.6rem); line-height: 1.01; letter-spacing: -.055em; }
.hero-lede { max-width: 53ch; margin-top: 1.15rem; color: var(--titan-muted); font-size: clamp(1rem, 2.2vw, 1.12rem); line-height: 1.55; }
.hero-actions { margin-top: 1.35rem; }
.hero-primary { box-shadow: 0 .7rem 1.5rem var(--titan-green-shadow); }
.hero-inspector-link { display: inline-flex; min-height: 2.75rem; align-items: center; margin-top: .35rem; color: var(--titan-green-800); font-size: .84rem; font-weight: 800; text-underline-offset: .22rem; }
.hero-meta { display: flex; flex-wrap: wrap; gap: .3rem .8rem; margin-top: .85rem; color: var(--titan-muted); font-size: .75rem; }
.hero-meta span { display: inline-flex; align-items: center; gap: .35rem; }
.hero-meta span::before { width: .35rem; height: .35rem; border-radius: 50%; background: var(--titan-green-500); content: ""; }
.release-status { min-height: 1.2rem; margin-top: .25rem; color: var(--titan-danger); font-size: .75rem; }

.context-preview { --preview-stage-height: 34.5rem; display: grid; grid-template-rows: auto minmax(0, 1fr); height: var(--preview-stage-height); min-width: 0; overflow: hidden; border: 1px solid var(--titan-border); border-radius: .9rem; background: var(--titan-surface); box-shadow: var(--titan-shadow); }
.preview-rail { display: flex; align-items: center; gap: .3rem; border-bottom: 1px solid var(--titan-border); padding: .45rem .55rem; }
.preview-rail img { width: 2rem; height: 2rem; margin-right: .25rem; }
.preview-rail button { position: relative; display: grid; min-width: 2.75rem; min-height: 2.75rem; place-items: center; border: 1px solid transparent; border-radius: .42rem; background: transparent; color: var(--titan-muted); cursor: pointer; }
.preview-rail button[aria-selected="true"] { background: var(--titan-green-900); color: var(--titan-white); }
.preview-rail button[aria-expanded="true"] { border-color: var(--titan-green-600); background: var(--titan-green-100); color: var(--titan-green-900); }
.preview-rail button:hover { border-color: var(--titan-border-strong); color: var(--titan-ink); }
.preview-rail button[aria-selected="true"]:hover { border-color: var(--titan-green-700); color: var(--titan-white); }
.preview-rail button:focus-visible { outline: 3px solid var(--titan-focus-ring); outline-offset: 2px; }
.preview-rail button::after { position: absolute; z-index: 4; top: calc(100% + .35rem); left: 50%; visibility: hidden; border-radius: .3rem; background: var(--titan-green-950); padding: .3rem .45rem; color: var(--titan-white); content: attr(data-tooltip); font-size: .65rem; font-weight: 750; opacity: 0; pointer-events: none; transform: translateX(-50%); white-space: nowrap; }
.preview-rail button:hover::after, .preview-rail button:focus-visible::after { visibility: visible; opacity: 1; }
.preview-rail .rail-bottom { margin-left: auto; }
.preview-app { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; min-width: 0; min-height: 0; overflow: hidden; }
.tab-rail { display: flex; overflow-x: auto; scrollbar-width: thin; }
.preview-tabs { border-bottom: 1px solid var(--titan-border); }
.preview-tabs button { flex: 1 0 5.2rem; min-height: 2.8rem; border: 0; border-right: 1px solid var(--titan-border-warm); background: var(--titan-surface-warm); color: var(--titan-muted); cursor: pointer; font-size: .76rem; }
.preview-tabs button[aria-selected="true"] { background: var(--titan-green-100); color: var(--titan-ink); box-shadow: inset 0 -2px 0 var(--titan-green-600); font-weight: 800; }
.preview-panels { position: relative; min-height: 0; overflow: hidden; }
.preview-panel { height: 100%; min-height: 0; overflow-y: auto; scrollbar-gutter: stable; padding: .9rem; animation: panel-in .2s ease both; }
.preview-heading { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: .65rem; }
.preview-heading h2 { font-size: 1.05rem; letter-spacing: -.02em; }
.preview-heading p { margin-top: .15rem; color: var(--titan-muted); font: .68rem/1.35 "Cascadia Code", Consolas, monospace; }
.preview-counts { display: flex; gap: .4rem; }
.preview-counts span { border: 1px solid var(--titan-border); border-radius: .38rem; padding: .35rem .55rem; color: var(--titan-muted); font-size: .68rem; }
.preview-counts b { color: var(--titan-ink); }
.preview-context-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: .7rem; margin-top: .8rem; }
.included-list h3, .source-map h3 { margin-bottom: .45rem; font-size: .75rem; letter-spacing: -.01em; }
.included-list p { display: flex; min-height: 2.45rem; align-items: center; gap: .55rem; border: 1px solid var(--titan-border); border-bottom: 0; padding: .4rem .55rem; font-size: .75rem; }
.included-list p:first-of-type { border-radius: .45rem .45rem 0 0; }
.included-list p:last-child { border-bottom: 1px solid var(--titan-border); border-radius: 0 0 .45rem .45rem; }
.included-list p .icon { color: var(--titan-green-600); }
.included-list p:nth-of-type(3) .icon { color: var(--titan-warning); }
.included-list small { color: var(--titan-muted); font-size: .63rem; }
.source-map { border: 1px solid var(--titan-border); border-radius: .45rem; padding: .55rem; }
.source-map svg { display: block; width: 100%; min-height: 6.5rem; }
.map-lines { fill: none; stroke: var(--titan-green-border-muted); stroke-dasharray: 3 3; stroke-width: 1.5; }
.map-nodes { fill: var(--titan-current); stroke: var(--titan-white); stroke-width: 2; }
.source-map dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .4rem; border-top: 1px solid var(--titan-border); padding-top: .45rem; }
.source-map dt { color: var(--titan-muted); font-size: .6rem; }
.source-map dd { font-size: .7rem; font-weight: 750; }
.rule-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .3rem; border-top: 1px solid var(--titan-border); padding: .45rem 0 0; list-style: none; }
.rule-list li { border-left: 2px solid var(--titan-green-500); padding-left: .35rem; color: var(--titan-ink); font-size: .61rem; font-weight: 700; }
.preview-state-panel { display: grid; align-content: center; justify-items: center; gap: .75rem; text-align: center; }
.preview-state-panel h2 { max-width: 18ch; font-size: 1.7rem; }
.preview-state-panel > p:not(.panel-kicker) { max-width: 34ch; color: var(--titan-muted); }
.panel-kicker { color: var(--titan-green-600); font: 800 .68rem/1.2 "Cascadia Code", Consolas, monospace; letter-spacing: .08em; text-transform: uppercase; }
.state-stack { display: grid; width: min(100%, 21rem); gap: .35rem; }
.state-stack span { border-left: 3px solid; background: var(--titan-surface-soft); padding: .55rem; font-size: .76rem; font-weight: 750; text-align: left; }
.state-stack .current { border-color: var(--titan-green-600); }
.state-stack .historical { border-color: var(--titan-danger); }
.state-stack .proposed { border-color: var(--titan-warning); }
.source-citations { display: grid; width: min(100%, 24rem); gap: .35rem; }
.source-citations code { border: 1px solid var(--titan-border); border-left: 3px solid var(--titan-green-500); border-radius: .35rem; background: var(--titan-surface-soft); padding: .5rem; color: var(--titan-ink); font-size: .68rem; text-align: left; }
.context-sources { margin-top: .7rem; border: 1px solid var(--titan-border); border-radius: .45rem; background: var(--titan-surface-soft); }
.context-sources summary { display: flex; min-height: 2.75rem; align-items: center; padding: .55rem .7rem; color: var(--titan-green-800); font-size: .72rem; font-weight: 800; cursor: pointer; }
.context-sources[open] summary { border-bottom: 1px solid var(--titan-border); }
.context-sources .source-citations { width: 100%; padding: .6rem; }
#preview-system-utility { position: absolute; z-index: 3; inset: 0; overflow-y: auto; background: var(--titan-surface); padding: 1rem; text-align: center; scrollbar-gutter: stable; }
#preview-system-utility h2 { max-width: 18ch; margin: 2.2rem auto .7rem; font-size: 1.7rem; }
#preview-system-utility > p:not(.panel-kicker) { max-width: 38ch; margin-inline: auto; color: var(--titan-muted); }
.system-utility-close { position: absolute; top: .65rem; right: .65rem; display: inline-flex; min-height: 2.75rem; align-items: center; gap: .35rem; border: 1px solid var(--titan-border-strong); border-radius: .4rem; background: var(--titan-surface); padding-inline: .65rem; color: var(--titan-green-800); font-weight: 800; cursor: pointer; }
.preview-footer { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem .75rem; border-top: 1px solid var(--titan-border); background: var(--titan-green-100); padding: .55rem .7rem; }
.preview-footer > span, .preview-footer a { display: inline-flex; min-height: 2.4rem; align-items: center; gap: .35rem; font-size: .72rem; font-weight: 800; }
.preview-footer > span { color: var(--titan-green-800); }
.preview-footer a { margin-left: auto; border-radius: .4rem; background: var(--titan-green-900); padding-inline: .65rem; color: var(--titan-white); text-decoration: none; }
.preview-footer small { flex: 1 0 100%; color: var(--titan-muted); font-size: .64rem; }

/* Proof strip */
.evidence-strip { padding-block: 1.2rem; background: var(--titan-bg); }
.evidence-strip-inner { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); overflow: hidden; border: 1px solid var(--titan-border); border-radius: .75rem; background: var(--titan-surface); box-shadow: var(--titan-shadow-soft); }
.proof-item { display: flex; min-width: 0; gap: .75rem; align-items: center; border-right: 1px solid var(--titan-border); border-bottom: 1px solid var(--titan-border); padding: .85rem 1rem; transform: translateY(.15rem); }
.proof-item:nth-child(2n) { border-right: 0; }
.proof-item:last-child { grid-column: 1 / -1; border-right: 0; border-bottom: 0; }
.evidence-strip.is-revealed .proof-item { transform: none; }
.proof-item > .icon { width: 1.65rem; height: 1.65rem; color: var(--titan-green-900); }
.proof-item h2 { font-size: .86rem; letter-spacing: -.01em; }
.proof-item p { margin-top: .15rem; color: var(--titan-muted); font-size: .7rem; line-height: 1.35; }

/* Judge Demo */
.embedded-demo { padding-block: clamp(2.8rem, 6vw, 4.5rem); }
.judge-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.1rem; }
.demo-heading h2 { margin-top: .35rem; font-size: clamp(2.25rem, 8vw, 3.6rem); }
.demo-heading > p:not(.eyebrow) { max-width: 24ch; margin-top: .6rem; color: var(--titan-muted); }
.demo-heading .text-cta { margin-top: .55rem; }
.demo-frame { min-width: 0; overflow: hidden; border: 1px solid var(--titan-border); border-radius: .8rem; background: var(--titan-surface); box-shadow: var(--titan-shadow-soft); }
.demo-window-bar { display: flex; min-height: 2.7rem; align-items: center; justify-content: space-between; gap: .75rem; border-bottom: 1px solid var(--titan-border); padding: .55rem .75rem; font-size: .68rem; }
.frame-status { color: var(--titan-green-600); font-weight: 800; }
.demo-tabs { background: var(--titan-bg-warm); }
.demo-tabs button { flex: 1 0 7.4rem; min-height: 3rem; border: 0; border-right: 1px solid var(--titan-border); background: transparent; color: var(--titan-muted); cursor: pointer; font-size: .68rem; font-weight: 700; }
.demo-tabs button span { display: inline-grid; width: 1.4rem; height: 1.4rem; margin-right: .3rem; place-items: center; border: 1px solid var(--titan-border); border-radius: 50%; }
.demo-tabs button[aria-selected="true"] { background: var(--titan-green-900); color: var(--titan-white); }
.demo-tabs button[aria-selected="true"] span { border-color: var(--titan-white-border-translucent); background: var(--titan-white-surface-translucent); }
.demo-canvas { min-height: 20rem; border-top: 1px solid var(--titan-border); background: var(--titan-bg-warm); padding: .75rem; }
.demo-panel { min-height: 18.5rem; animation: panel-in .2s ease both; }
.demo-panel:not(.verify-panel) { display: grid; align-content: center; justify-items: center; gap: .6rem; text-align: center; }
.demo-panel:not(.verify-panel) p { max-width: 48ch; color: var(--titan-muted); }
.verification-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: .55rem; }
.verification-grid article { min-width: 0; border: 1px solid var(--titan-border); border-radius: .48rem; background: var(--titan-white); padding: .65rem; }
.verification-grid h3 { margin-bottom: .55rem; font-size: .78rem; letter-spacing: -.01em; }
.verification-summary { text-align: center; }
.score-ring { position: relative; width: 5.5rem; height: 5.5rem; margin: .25rem auto; }
.score-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.score-ring circle { fill: none; stroke: var(--titan-border); stroke-width: 9; }
.score-ring .ring-progress { stroke: var(--titan-green-500); stroke-dasharray: 239; stroke-dashoffset: 0; }
.score-ring strong { position: absolute; inset: 0; display: grid; place-content: center; font: 850 1.7rem/1 "Cascadia Code", Consolas, monospace; }
.score-ring small { font-size: .65rem; }
.verification-summary > p { display: flex; align-items: center; justify-content: center; gap: .3rem; color: var(--titan-green-600); font-size: .68rem; font-weight: 800; }
.verification-checks ul { padding: 0; list-style: none; }
.verification-checks li { display: flex; min-height: 2rem; align-items: center; justify-content: space-between; gap: .5rem; border-bottom: 1px solid var(--titan-border-warm); font-size: .68rem; }
.verification-checks li::before { width: .42rem; height: .42rem; flex: 0 0 auto; border-radius: 50%; background: var(--titan-green-500); content: ""; }
.verification-checks b { margin-left: auto; color: var(--titan-green-600); font-size: .62rem; }
.verification-evidence pre, .exports-card pre { overflow-x: auto; border-radius: .4rem; background: var(--titan-code); padding: .7rem; color: var(--titan-code-text); }
.scenario-tabs { display: grid; grid-template-columns: minmax(0, 1fr); gap: .4rem; margin-top: .55rem; }
.scenario-tabs button { display: grid; min-height: 4rem; gap: .1rem; border: 1px solid var(--titan-border); border-radius: .45rem; background: var(--titan-white); padding: .5rem; color: var(--titan-ink); cursor: pointer; text-align: left; }
.scenario-tabs button[aria-selected="true"] { border-color: var(--titan-green-600); background: var(--titan-green-100); }
.scenario-tabs small { color: var(--titan-muted); font-size: .64rem; }
.scenario-tabs strong { font: 850 .8rem/1.2 "Cascadia Code", Consolas, monospace; }
.scenario-tabs button:nth-child(1) strong { color: var(--titan-green-600); }
.scenario-tabs button:nth-child(2) strong { color: var(--titan-warning); }
.scenario-tabs button:nth-child(3) strong { color: var(--titan-danger); }
.scenario-reason, .scenario-source { font-size: .6rem; line-height: 1.25; }
.scenario-source { color: var(--titan-muted); }
.scenario-detail { margin-top: .45rem; color: var(--titan-muted); font-size: .68rem; }
.demo-success { display: flex; min-height: 2.6rem; align-items: center; justify-content: center; gap: .4rem; border-top: 1px solid var(--titan-green-border-soft); background: var(--titan-green-100); padding: .55rem; color: var(--titan-green-800); font-size: .7rem; font-weight: 800; text-align: center; }

/* Comparison */
.retrieval-comparison { border-block: 1px solid var(--titan-border); background: var(--titan-bg-warm); padding-block: clamp(2.6rem, 6vw, 4.2rem); }
.comparison-shell > h2 { margin-bottom: 1rem; text-align: center; font-size: clamp(1.65rem, 5vw, 2.35rem); }
.comparison-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); gap: .7rem; }
.comparison-card { border: 1px solid var(--titan-border); border-radius: .75rem; background: var(--titan-surface); padding: 1rem; }
.comparison-card.titan-side { border-color: var(--titan-green-border-muted); background: var(--titan-green-50); }
.comparison-card header { display: flex; align-items: center; gap: .55rem; }
.comparison-card header img, .comparison-card header .icon { width: 2rem; height: 2rem; }
.comparison-card h3 { font-size: 1rem; letter-spacing: -.01em; }
.comparison-card ul { display: grid; gap: .5rem; margin-top: .8rem; padding: 0; list-style: none; }
.comparison-card li { display: grid; grid-template-columns: 1.05rem minmax(0, 1fr); gap: .2rem .45rem; font-size: .74rem; font-weight: 800; }
.comparison-card li::before { display: grid; width: .85rem; height: .85rem; margin-top: .1rem; place-items: center; border-radius: 50%; background: var(--titan-green-500); color: var(--titan-white); content: ""; }
.comparison-card small { grid-column: 2; color: var(--titan-muted); font-size: .66rem; font-weight: 500; }
.generic-side { color: var(--titan-muted-strong); }
.generic-side li::before { background: var(--titan-border-strong); }
.versus { display: grid; width: 2.7rem; height: 2.7rem; place-items: center; justify-self: center; border: 1px solid var(--titan-border); border-radius: 50%; background: var(--titan-white); font: 850 .72rem/1 "Cascadia Code", Consolas, monospace; box-shadow: var(--titan-shadow-soft); }

/* Technical credibility */
.technical-evidence { padding-block: clamp(2.6rem, 6vw, 4.2rem); }
.technical-heading { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: .75rem; margin-bottom: 1rem; text-align: center; }
.technical-heading h2 { flex: 1 0 100%; font-size: clamp(1.75rem, 5vw, 2.45rem); }
.technical-heading > div { display: flex; width: 100%; justify-content: center; gap: 1rem; }
.technical-heading a { min-height: 2.75rem; color: var(--titan-green-800); font-size: .76rem; font-weight: 800; }
.technical-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: .7rem; }
.technical-card { min-width: 0; border: 1px solid var(--titan-border); border-radius: .65rem; background: var(--titan-surface); padding: .85rem; box-shadow: var(--titan-shadow-hairline); }
.technical-card > h3 { display: flex; min-height: 2.25rem; align-items: center; justify-content: center; gap: .4rem; border-bottom: 2px solid var(--titan-green-500); font-size: .78rem; letter-spacing: -.01em; }
.technical-card > p { margin-top: .7rem; color: var(--titan-muted); font-size: .68rem; }
.technical-card .skills-principle { color: var(--titan-ink); font-weight: 750; }
.skill-list { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .55rem; }
.skill-list span { border: 1px solid var(--titan-green-border-muted); border-radius: 99rem; background: var(--titan-green-100); padding: .22rem .4rem; color: var(--titan-green-900); font-size: .58rem; font-weight: 750; }
.architecture-flow { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr); gap: .25rem; align-items: center; margin-top: .75rem; }
.architecture-flow span { display: grid; min-height: 2.3rem; place-items: center; border: 1px solid var(--titan-green-border-soft); border-radius: .35rem; background: var(--titan-green-100); padding: .25rem; font-size: .58rem; font-weight: 750; text-align: center; }
.verification-card dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .35rem; margin-top: .7rem; }
.verification-card dl div { display: flex; min-height: 3.5rem; flex-direction: column-reverse; align-items: center; justify-content: center; border: 1px solid var(--titan-border); border-radius: .35rem; background: var(--titan-bg-warm); }
.verification-card dt { color: var(--titan-muted); font-size: .58rem; }
.verification-card dd { font: 850 1.2rem/1 "Cascadia Code", Consolas, monospace; }
.mcp-card > code { display: block; min-height: 2rem; border-bottom: 1px solid var(--titan-border); padding: .45rem .2rem; font-size: .63rem; }
.mcp-card .mcp-connection { margin: .55rem 0 .2rem; color: var(--titan-green-800); font-size: .61rem; font-weight: 750; }
.tool-disclosure { margin-top: .35rem; }
.tool-disclosure summary, .exports-card details summary { display: flex; min-height: 2.75rem; align-items: center; color: var(--titan-green-800); cursor: pointer; font-size: .68rem; font-weight: 800; }
.mcp-tool-list { display: grid; gap: .2rem; padding: 0; list-style: none; }
.mcp-tool-list code { display: block; border-bottom: 1px solid var(--titan-border); padding: .3rem 0; font-size: .59rem; }
.exports-card pre { margin-top: .7rem; font-size: .64rem; }
.exports-card details p { margin-top: .2rem; color: var(--titan-muted); font-size: .64rem; }
.self-use-proof { display: grid; gap: .75rem; margin-top: .75rem; border: 1px solid var(--titan-green-border); border-radius: .65rem; background: var(--titan-green-100); padding: 1rem; }
.self-use-proof h3 { margin-top: .2rem; font-size: 1.2rem; }
.self-use-proof ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .35rem; padding: 0; counter-reset: self-use; list-style: none; }
.self-use-proof li { display: flex; align-items: center; gap: .35rem; color: var(--titan-ink); font-size: .66rem; font-weight: 750; counter-increment: self-use; }
.self-use-proof li::before { display: grid; width: 1.3rem; height: 1.3rem; flex: 0 0 auto; place-items: center; border-radius: 50%; background: var(--titan-green-900); color: var(--titan-white); content: counter(self-use); font: 800 .55rem/1 "Cascadia Code", Consolas, monospace; }
.self-use-proof > p { font-size: .72rem; line-height: 1.5; }
.self-use-proof > small { color: var(--titan-warning); font-size: .64rem; font-weight: 800; }

/* Landing CTA */
.final-cta[data-landing-section] { padding-block: 1rem 2.2rem; }
.cta-card { position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: .75rem; align-items: center; overflow: hidden; border: 1px solid var(--titan-border); border-radius: .8rem; background: var(--titan-surface); padding-block: 1rem; box-shadow: var(--titan-shadow-soft); }
.cta-card::after { position: absolute; right: -2rem; bottom: -3rem; width: 10rem; height: 10rem; border: 1px solid var(--titan-green-border-soft); border-radius: 50%; box-shadow: 0 0 0 1.2rem var(--titan-green-halo), 0 0 0 2.4rem var(--titan-green-halo-soft); content: ""; pointer-events: none; }
.cta-card > img { width: 3.4rem; height: 3.4rem; }
.cta-card h2 { font-size: clamp(1.2rem, 4.5vw, 1.75rem); }
.cta-card > div > p { margin-top: .2rem; color: var(--titan-muted); font-size: .78rem; }
.cta-card .cta-row { z-index: 1; grid-column: 1 / -1; }
.supporting-links { z-index: 1; grid-column: 1 / -1; color: var(--titan-muted); font-size: .68rem; }

/* Supporting public pages */
.section { border-top: 1px solid var(--titan-border); padding-block: var(--titan-section-space); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.section-heading h2 { max-width: 20ch; margin-top: .4rem; font-size: clamp(2rem, 7vw, 3.8rem); }
.section-heading > p { max-width: 62ch; color: var(--titan-muted); }
.section-heading.section-heading-stacked { grid-template-columns: minmax(0, 1fr); align-items: start; }
.section-heading .section-summary { max-width: 62ch; margin-top: .75rem; color: var(--titan-muted); font-size: 1rem; line-height: 1.55; }
.page-hero { scroll-margin-top: calc(var(--titan-header-height) + 1rem); padding-block: clamp(2.25rem, 5vw, 4rem); }
.page-hero h1 { max-width: 18ch; margin-top: .55rem; font-size: clamp(2.4rem, 8vw, 4.5rem); }
.page-hero > p { max-width: 65ch; margin-top: 1rem; color: var(--titan-muted); font-size: 1.05rem; }
.badge-row { margin-top: 1rem; }
.badge, .time-mark { display: inline-flex; min-height: 2rem; align-items: center; border: 1px solid var(--titan-border); border-radius: 99rem; background: var(--titan-green-100); padding: .3rem .65rem; color: var(--titan-green-800); font-size: .76rem; font-weight: 800; }
.problem-grid, .evidence-grid, .privacy-grid, .boundary-grid, .instruction-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: .8rem; }
.problem-card, .evidence-card, .privacy-card, .boundary-card, .instruction-card { border: 1px solid var(--titan-border); border-radius: .7rem; background: var(--titan-surface); padding: 1rem; }
.problem-card h3, .evidence-card h3, .privacy-card h3, .boundary-card h3 { margin-bottom: .45rem; font-size: 1.05rem; }
.problem-card p, .evidence-card p, .privacy-card p, .boundary-card p { color: var(--titan-muted); }
.problem-card span, .evidence-card span { display: grid; width: 2.2rem; height: 2.2rem; margin-bottom: 1rem; place-items: center; border: 1px solid var(--titan-green-600); border-radius: 50%; color: var(--titan-green-600); font-weight: 900; }
.process-note { margin-top: .8rem; border-left: 3px solid var(--titan-warning); background: var(--titan-warning-soft); padding: .75rem; color: var(--titan-ink); font-size: .8rem; }
.self-use-transition { display: flex; width: fit-content; align-items: center; gap: .45rem; margin-bottom: 1.15rem; border: 1px solid var(--titan-border); border-radius: 99rem; background: var(--titan-surface); padding: .45rem .7rem; color: var(--titan-green-800); font-size: .875rem; font-weight: 850; }
.self-use-transition .icon { width: .9rem; height: .9rem; }
.self-use-timeline { display: grid; margin: 0; padding: 0; list-style: none; }
.self-use-step { position: relative; display: grid; grid-template-columns: 4.25rem minmax(0, 1fr); gap: .85rem; min-width: 0; padding-bottom: 1.5rem; }
.step-marker { position: relative; z-index: 1; display: grid; width: 3.5rem; height: 3.5rem; grid-template-columns: 1fr; place-items: center; border: 1px solid var(--titan-green-600); border-radius: .7rem; background: var(--titan-surface); color: var(--titan-green-700); box-shadow: 0 0 0 .25rem var(--titan-bg); }
.step-marker .icon { width: 1rem; height: 1rem; }
.step-number { font: 850 1.45rem/1 "Cascadia Code", Consolas, monospace; }
.self-use-step:not(:last-child) .step-marker::after { position: absolute; z-index: -1; top: 3.5rem; left: 50%; width: 1px; height: 1.5rem; background: var(--titan-border-strong); content: ""; }
.step-owner { margin-bottom: .15rem; color: var(--titan-green-700); font-size: .875rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.self-use-step h3 { font-size: clamp(1.0625rem, 4.5vw, 1.1875rem); }
.self-use-step div:last-child > p:last-child { max-width: 34ch; margin-top: .3rem; color: var(--titan-muted); font-size: 1.0625rem; line-height: 1.5; }
.compact-process-note { display: flex; width: fit-content; max-width: 68rem; align-items: flex-start; gap: .65rem; border: 1px solid var(--titan-warning-border); border-left-width: 3px; border-radius: .55rem; padding: .65rem .75rem; font-size: .875rem; line-height: 1.45; }
.compact-process-note .icon { width: 1.1rem; height: 1.1rem; flex: 0 0 auto; margin-top: .1rem; color: var(--titan-warning); }
.boundary-card.before { background: var(--titan-surface-muted); }
.boundary-card.during { border-color: var(--titan-green-600); background: var(--titan-green-100); }
.check-list { display: grid; gap: .4rem; padding: 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: .7rem 1fr; gap: .45rem; }
.check-list li::before { width: .45rem; height: .45rem; margin-top: .5rem; border-radius: 50%; background: var(--titan-green-500); content: ""; }
.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem; }
.metric { min-width: 0; border: 1px solid var(--titan-border); border-radius: .65rem; background: var(--titan-surface); padding: .85rem; }
.metric strong { display: block; color: var(--titan-green-600); font: 850 clamp(1.55rem, 6vw, 2.35rem)/1 "Cascadia Code", Consolas, monospace; }
.metric span { display: block; margin-top: .4rem; color: var(--titan-muted); font-size: .78rem; }
.build-week-metric-grid { grid-auto-rows: 1fr; gap: .75rem; }
.metric-card { display: flex; min-width: 0; min-height: 12.25rem; flex-direction: column; border: 1px solid var(--titan-border); border-radius: .7rem; background: var(--titan-surface); padding: .9rem; }
.metric-card-header { display: flex; min-height: 1.7rem; flex-wrap: wrap; gap: .35rem; align-items: flex-start; }
.metric-chip { display: inline-flex; min-height: 1.6rem; align-items: center; border: 1px solid var(--titan-border); border-radius: 99rem; background: var(--titan-surface-soft); padding: .15rem .5rem; color: var(--titan-green-800); font-size: .75rem; font-weight: 850; }
.metric-ratio, .metric-single { display: flex; min-height: 4.2rem; align-items: baseline; gap: .35rem; margin-top: .45rem; color: var(--titan-green-700); font-family: "Cascadia Code", Consolas, monospace; font-weight: 850; white-space: nowrap; }
.metric-card .metric-value { color: var(--titan-green-600); font-family: "Cascadia Code", Consolas, monospace; font-weight: 850; }
.metric-value { font-size: clamp(2.375rem, 6vw, 3rem); line-height: 1; }
.metric-denominator,
.metric-separator { color: var(--titan-green-700); font-size: clamp(1.25rem, 3.5vw, 1.625rem); font-weight: 800; line-height: 1; }
.metric-unit { color: var(--titan-green-700); font-size: 1rem; font-weight: 800; }
.metric-card h3 { margin-top: auto; font-size: 1rem; line-height: 1.25; }
.metric-card > p { margin-top: .35rem; color: var(--titan-muted); font-size: .875rem; line-height: 1.4; }
.metric-tool-split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem; margin: .45rem 0 .65rem; }
.metric-tool-split > div { min-width: 0; border-right: 1px solid var(--titan-border); padding-right: .55rem; }
.metric-tool-split > div:last-child { border-right: 0; padding-right: 0; }
.metric-tool-split strong, .metric-tool-split span { display: block; }
.metric-tool-split span { margin-top: .2rem; color: var(--titan-green-700); font-size: .875rem; font-weight: 800; line-height: 1.25; }
.metric-readonly { align-items: center; font-family: inherit; font-size: 1.45rem; }
.metric-readonly .icon { width: 2.6rem; height: 2.6rem; }
.build-week-metrics > .cta-row { margin-top: 1rem; }
.instruction-card h2 { margin-bottom: .7rem; font-size: 1.3rem; }
.instruction-card h3 { margin: 1rem 0 .4rem; font-size: 1rem; }
.instruction-card ol, .instruction-card ul { padding-left: 1.2rem; }
.instruction-card li + li { margin-top: .3rem; }
.instruction-card pre, .architecture-map { overflow-x: auto; margin-top: .75rem; border-radius: .55rem; background: var(--titan-code); padding: .8rem; color: var(--titan-code-text); }
.tool-list, .commit-list { display: grid; gap: .35rem; padding: 0; list-style: none; }
.tool-list code { display: block; border: 1px solid var(--titan-border); border-radius: .4rem; background: var(--titan-surface-soft); padding: .45rem; }
.commit-list li { display: grid; grid-template-columns: 5rem 1fr; gap: .6rem; border-bottom: 1px solid var(--titan-border); padding: .5rem 0; }
.commit-list code { color: var(--titan-green-600); }
.final-cta:not([data-landing-section]) { background: var(--titan-green-900); padding: clamp(3.5rem, 8vw, 6rem) 1rem; color: var(--titan-white); text-align: center; }
.final-cta:not([data-landing-section]) h2 { max-width: 18ch; margin: .5rem auto 0; font-size: clamp(2.2rem, 7vw, 4rem); }
.final-cta:not([data-landing-section]) > p:not(.eyebrow) { max-width: 50ch; margin: .8rem auto 0; color: var(--titan-dark-muted); }
.final-cta:not([data-landing-section]) .cta-row { justify-content: center; margin-top: 1.2rem; }
.final-cta.build-week-cta { padding: 2.5rem 1rem; border-radius: .85rem .85rem 0 0; }
.build-week-cta-inner { width: min(100%, 72rem); margin-inline: auto; }
.final-cta.build-week-cta h2 { max-width: 32ch; font-size: clamp(2rem, 4vw, 2.5rem); line-height: 1.08; }
.build-week-cta > .build-week-cta-inner > p:not(.eyebrow) { max-width: 70rem; margin: .65rem auto 0; color: var(--titan-dark-muted); font-size: clamp(.875rem, 1.25vw, 1rem); line-height: 1.5; }
.build-week-cta .button { min-height: 2.75rem; }
.build-week-cta .button.primary { border-color: var(--titan-green-border); background: var(--titan-green-100); color: var(--titan-green-900); box-shadow: 0 0 0 2px var(--titan-green-halo-soft); }
.site-footer { border-top: 1px solid var(--titan-border); padding-block: 1.25rem; }
.build-week-footer { min-height: 4rem; padding-block: .4rem; background: var(--titan-surface); }
.footer-inner { display: flex; flex-direction: column; gap: .6rem; color: var(--titan-muted); font-size: .78rem; }
.footer-brand { display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; }
.footer-brand strong { color: var(--titan-ink); font-size: .9rem; }
.footer-inner nav { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-inner a { display: inline-flex; min-height: 2.75rem; align-items: center; }
.section, .final-cta { scroll-margin-top: calc(var(--titan-header-height) + 1rem); }

@keyframes panel-in { from { transform: translateY(.2rem); } to { transform: none; } }

@media (min-width: 48rem) {
  .shell { padding-inline: 1.5rem; }
  .context-preview { --preview-stage-height: 34.5rem; }
  .preview-footer { padding-block: .2rem; }
  .preview-footer > span, .preview-footer a { min-height: 2.75rem; }
  .preview-footer small { flex: 0 0 auto; }
  .preview-panel { padding: .6rem; }
  .preview-context-grid { grid-template-columns: minmax(0, 1.25fr) minmax(11rem, .75fr); }
  .verification-grid { grid-template-columns: minmax(9rem, .72fr) minmax(0, 1fr); }
  .verification-evidence { grid-column: 1 / -1; }
  .scenario-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .comparison-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; }
  .versus { position: absolute; z-index: 2; top: 50%; left: 50%; transform: translate(-50%, -50%); }
  .technical-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-card { grid-template-columns: auto minmax(15rem, 1fr) auto; }
  .cta-card .cta-row { grid-column: auto; justify-content: flex-end; }
  .supporting-links { grid-column: 2 / -1; }
  .section-heading { grid-template-columns: minmax(0, 1.2fr) minmax(18rem, .8fr); align-items: end; }
  .problem-grid, .privacy-grid, .evidence-grid, .boundary-grid, .instruction-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .build-week-metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .final-cta.build-week-cta { padding-block: 3.5rem; }
  .footer-inner { flex-direction: row; align-items: center; justify-content: space-between; }
}

@media (min-width: 64rem) {
  .hero-grid { grid-template-columns: minmax(0, .86fr) minmax(34rem, 1.14fr); gap: clamp(2rem, 4vw, 4rem); min-height: 36rem; padding-block: 2.2rem; }
  .interactive-hero h1 { font-size: clamp(2.85rem, 3.35vw, 3rem); }
  .context-preview { --preview-stage-height: 30rem; grid-template-columns: 3.4rem minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); }
  .preview-rail { flex-direction: column; border-right: 1px solid var(--titan-border); border-bottom: 0; }
  .preview-rail img { margin: 0 0 .25rem; }
  .preview-rail .rail-bottom { margin: auto 0 0; }
  .preview-rail button::after { top: 50%; left: calc(100% + .4rem); transform: translateY(-50%); }
  .evidence-strip-inner { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .proof-item { min-height: 5.3rem; border-right: 1px solid var(--titan-border); border-bottom: 0; }
  .proof-item:nth-child(2n) { border-right: 1px solid var(--titan-border); }
  .proof-item:last-child { grid-column: auto; border-right: 0; }
  .judge-layout { grid-template-columns: 13.5rem minmax(0, 1fr); align-items: start; }
  .demo-heading { padding-top: .6rem; }
  .verification-grid { grid-template-columns: minmax(8.5rem, .72fr) minmax(10rem, 1fr) minmax(13rem, 1.25fr); }
  .verification-evidence { grid-column: auto; }
  .technical-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .technical-card { min-height: 16rem; }
  .problem-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .privacy-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .evidence-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .build-week-metric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .self-use-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .self-use-timeline { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem 1rem; }
  .self-use-step { grid-template-columns: 3.75rem minmax(0, 1fr); gap: .65rem; padding: .25rem .8rem .8rem 0; }
  .self-use-step:not(:last-child) .step-marker::after { display: none; }
  .self-use-step:not(:nth-child(3n))::after { position: absolute; top: 1.75rem; right: -.75rem; width: 1.5rem; height: 1px; background: var(--titan-border-strong); content: ""; }
}

@media (min-width: 80rem) {
  .hero-grid { grid-template-columns: minmax(0, .84fr) minmax(38rem, 1.16fr); }
}

@media (max-width: 47.999rem) {
  .hero-actions .button { width: 100%; }
  .preview-footer a { margin-left: 0; }
  .demo-window-bar { align-items: flex-start; flex-direction: column; }
  .technical-heading a { align-items: center; }
  .cta-card .button { width: 100%; }
  .build-week-cta .cta-row { display: grid; grid-template-columns: minmax(0, 1fr); }
  .build-week-cta .button { width: 100%; }
  .build-week-metric-grid .metric-tools { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms; animation-duration: .01ms; animation-iteration-count: 1; }
}