/* Exometer homepage. Canonical brand palette imported from tokens.css. */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }
body { margin: 0; background: var(--exo-page); color: var(--exo-text); font: 1rem/1.6 var(--exo-font-body); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-family: var(--exo-font-display); text-wrap: balance; }
h2 { font-size: var(--exo-heading-section); font-weight: 800; line-height: 1.1; letter-spacing: -.035em; }
h3 { font-size: 1.25rem; font-weight: 700; line-height: 1.25; letter-spacing: -.02em; }
a { color: inherit; text-underline-offset: .22em; }
code { font-family: var(--exo-font-mono); font-size: .82em; letter-spacing: -.01em; }
button { font: inherit; color: inherit; }
img { max-width: 100%; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--exo-focus); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--exo-action-soft); color: var(--exo-text); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 50; padding: 12px 18px; background: var(--exo-surface); border: 1px solid var(--exo-border-control); border-radius: var(--exo-radius-control); }
.skip-link:focus { top: 12px; }
.wrap { width: 100%; max-width: var(--exo-container); margin-inline: auto; padding-inline: var(--exo-gutter); }
.mono-k { font: 500 .75rem/1.5 var(--exo-font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--exo-text-muted); }

/* Theme-dependent logo swap (page level) */
.mark-dark { display: none; }
[data-theme="dark"] .mark-light { display: none; }
[data-theme="dark"] .mark-dark { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .mark-light { display: none; }
  :root:not([data-theme="light"]) .mark-dark { display: block; }
}

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .6rem; min-height: var(--exo-control-height); padding: 0 1.15rem; border-radius: var(--exo-radius-control); border: 1px solid transparent; font: 600 .95rem/1 var(--exo-font-body); text-decoration: none; cursor: pointer; white-space: nowrap; transition: background var(--exo-duration) var(--exo-ease), border-color var(--exo-duration) var(--exo-ease), transform 80ms var(--exo-ease); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--exo-action); color: var(--exo-on-action); }
.btn-primary:hover { background: var(--exo-action-hover); }
.btn-quiet { color: var(--exo-text); border-color: var(--exo-border-control); background: transparent; }
.btn-quiet:hover { background: var(--exo-surface); }
.btn-ghost-dark { color: var(--exo-text); border-color: var(--exo-border-control); background: transparent; }
.btn-ghost-dark:hover { background: var(--exo-surface-raised); }
.btn-small { min-height: 2.25rem; padding: 0 .85rem; font-size: .875rem; }
.arrow { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transition: transform var(--exo-duration) var(--exo-ease); }
.btn:hover .arrow { transform: translateX(3px); }
.fill { fill: currentColor; stroke: none; }

/* Header */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--exo-page) 88%, transparent); backdrop-filter: saturate(1.2) blur(12px); border-bottom: 1px solid var(--exo-border); }
.top-row { display: flex; align-items: center; gap: 1rem; min-height: 4rem; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 800 1.5rem/1 var(--exo-font-display); letter-spacing: -.04em; margin-right: auto; }
.brand .mark { width: 32px; height: 32px; }
.brand-small { font-size: 1.15rem; margin-right: 0; }
.brand-small .mark { width: 24px; height: 24px; }
.nav { display: flex; align-items: center; gap: 1.6rem; font-size: .95rem; }
.nav a:not(.btn) { color: var(--exo-text-muted); text-decoration: none; padding-block: .6rem; }
.nav a:not(.btn):hover { color: var(--exo-text); }
.theme-button, .menu-button { display: inline-grid; place-items: center; min-width: 44px; min-height: 44px; border-radius: var(--exo-radius-control); border: 1px solid transparent; background: transparent; cursor: pointer; color: var(--exo-text-muted); }
.theme-button:hover, .menu-button:hover { color: var(--exo-text); border-color: var(--exo-border); }
.t-icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; display: none; }
.theme-button[data-mode="system"] .t-system, .theme-button[data-mode="light"] .t-light, .theme-button[data-mode="dark"] .t-dark { display: block; }
.theme-button:not([data-mode]) .t-system { display: block; }
.menu-button { padding: 0 .9rem; font-weight: 600; font-size: .9rem; color: var(--exo-text); border-color: var(--exo-border-control); }
@media (max-width: 52rem) {
  .js .menu-button { display: inline-grid !important; }
  .js .nav { position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 0; padding: .5rem var(--exo-gutter) 1.25rem; background: var(--exo-page); border-bottom: 1px solid var(--exo-border); }
  .js .nav:not(.is-open) { display: none; }
  .js .nav a:not(.btn) { padding-block: .85rem; border-bottom: 1px solid var(--exo-border); }
  .js .nav .btn { margin-top: 1rem; min-height: var(--exo-control-height); }
  .nav { flex-wrap: wrap; gap: .25rem 1rem; }
}

/* Hero */
.hero { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: center; padding-block: clamp(3rem, 7vw, 6rem) clamp(3rem, 6vw, 5rem); }
@media (max-width: 60rem) { .hero { grid-template-columns: 1fr; } }
h1 { font-size: var(--exo-heading-hero); font-weight: 800; line-height: .95; letter-spacing: -.055em; }
.hero-line { margin-top: 1.25rem; font: 600 clamp(1.2rem, 1.2vw + .8rem, 1.45rem)/1.35 var(--exo-font-body); letter-spacing: -.01em; }
.hero-text { margin-top: 1rem; color: var(--exo-text-muted); font-size: var(--exo-text-lead); max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.stage { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem .75rem; margin-top: 1.5rem; font-size: .875rem; color: var(--exo-text-muted); }
.stage-k { font: 500 .72rem/1 var(--exo-font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--exo-text); padding: .4rem .55rem; border: 1px solid var(--exo-border-control); border-radius: 4px; }

.hero-figure { margin: 0; min-width: 0; }
.instrument { background: var(--exo-surface); color: var(--exo-text); border: 1px solid var(--exo-border); border-radius: var(--exo-radius-panel); box-shadow: 0 1px 0 rgb(0 0 0 / .04), 0 28px 60px -28px rgb(24 26 25 / .45); overflow: hidden; }
[data-theme="dark"] .instrument { box-shadow: none; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .instrument { box-shadow: none; } }
.inst-head { display: flex; align-items: center; gap: .6rem; padding: .85rem 1.1rem; border-bottom: 1px solid var(--exo-border); font-size: .875rem; }
.inst-path { color: var(--exo-text-muted); }
.inst-path span { margin-inline: .2rem; }
.tag { margin-left: auto; font: 500 .68rem/1 var(--exo-font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--exo-text-muted); border: 1px solid var(--exo-border-control); border-radius: 4px; padding: .35rem .45rem; }
.inst-title { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem .8rem; padding: 1.1rem 1.1rem .4rem; }
.inst-h { font-size: 1.25rem; letter-spacing: -.02em; }

/* Status pill: word + indicator */
.status { display: inline-flex; align-items: center; gap: .4rem; padding: .3rem .55rem; border-radius: 999px; font: 600 .75rem/1 var(--exo-font-body); white-space: nowrap; }
.status i { width: 7px; height: 7px; border-radius: 50%; }
.status[data-s="down"] { background: var(--exo-down-soft); color: var(--exo-down-text); }
.status[data-s="down"] i { background: var(--exo-down); }
.status[data-s="degraded"] { background: var(--exo-degraded-soft); color: var(--exo-degraded-text); }
.status[data-s="degraded"] i { background: var(--exo-degraded); }
.status[data-s="up"] { background: var(--exo-up-soft); color: var(--exo-up-text); }
.status[data-s="up"] i { background: var(--exo-up); }

/* Event log */
.events { list-style: none; margin: .5rem 0 0; padding: 0 .6rem; }
.ev { display: grid; grid-template-columns: 1.5rem 4.6rem 4rem minmax(0, 1fr) auto; gap: .75rem; align-items: baseline; padding: .55rem .5rem; border-radius: 6px; font-size: .875rem; transition: background var(--exo-duration) var(--exo-ease), opacity 220ms var(--exo-ease), box-shadow var(--exo-duration) var(--exo-ease); }
.ev time, .ev .where, .ev .res { font: .75rem/1.5 var(--exo-font-mono); font-variant-numeric: tabular-nums; }
.ev time { color: var(--exo-text-muted); }
.ev .where { color: var(--exo-text); }
.ev .what { min-width: 0; overflow-wrap: anywhere; }
.ev .what.wide { grid-column: 3 / -1; color: var(--exo-text-muted); }
.ev .res { text-align: right; white-space: nowrap; }
.res.down { color: var(--exo-down-text); }
.res.up { color: var(--exo-up-text); }
.ev.sys { border-top: 1px dashed var(--exo-border); border-radius: 0; margin-top: .25rem; }
.ref { font: 500 .68rem/1 var(--exo-font-mono); color: var(--exo-text-muted); display: inline-grid; place-items: center; width: 1.35rem; height: 1.35rem; border: 1px solid var(--exo-border); border-radius: 50%; align-self: center; }
.ev.sys .ref { border: 0; }
@media (max-width: 34rem) {
  .ev { grid-template-columns: 1.5rem 4rem minmax(0, 1fr); row-gap: .1rem; }
  .ev .where { grid-column: 3; }
  .ev .what { grid-column: 2 / -1; }
  .ev .res { grid-column: 2 / -1; text-align: left; }
  .ev .what.wide { grid-column: 2 / -1; }
}

/* Summary with cited claims */
.summary { margin: .75rem 1.1rem 0; padding: 1rem 0 .25rem; border-top: 1px solid var(--exo-border); }
.sum-row { display: grid; grid-template-columns: 8.5rem minmax(0, 1fr); gap: .35rem 1rem; padding-block: .55rem; font-size: .9375rem; line-height: 1.55; }
.sum-k { font: 600 .8125rem/1.6 var(--exo-font-body); color: var(--exo-text); display: flex; flex-direction: column; }
.kind { font: 400 .68rem/1.5 var(--exo-font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--exo-text-muted); }
@media (max-width: 34rem) { .sum-row { grid-template-columns: 1fr; } .sum-k { flex-direction: row; gap: .5rem; align-items: baseline; } }
.claim { padding: 0 .12em; margin: 0 -.12em; border-radius: 3px; cursor: pointer; -webkit-box-decoration-break: clone; box-decoration-break: clone; text-decoration: underline dotted; text-decoration-color: var(--exo-border-control); text-underline-offset: .25em; text-decoration-thickness: 1px; transition: background var(--exo-duration) var(--exo-ease), color var(--exo-duration) var(--exo-ease); }
.claim .refs { font: 500 .7em/1 var(--exo-font-mono); color: var(--exo-action); vertical-align: .35em; letter-spacing: 0; text-decoration: none; display: inline-block; }
.claim:hover, .claim.is-linked { background: var(--exo-action-soft); text-decoration-color: var(--exo-action); }
.claim.is-pinned { text-decoration: underline solid; text-decoration-color: var(--exo-action); }
.is-linked:is(.ev, tr) { background: var(--exo-action-soft); box-shadow: inset 3px 0 0 var(--exo-action); }
.is-linked .ref { border-color: var(--exo-action); color: var(--exo-action); }


.ruled { display: flex; align-items: center; gap: .9rem; margin-top: .9rem; font: .72rem/1.5 var(--exo-font-mono); letter-spacing: .02em; color: var(--exo-text-muted); }

/* How it works — a measurement line starting at the probe */
.how { padding-block: var(--exo-section-space); border-top: 1px solid var(--exo-border); }
.how h2 { max-width: 16em; }
.flow { list-style: none; margin: 3rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem; position: relative; }
.flow::before { content: ""; position: absolute; left: 7px; right: 0; top: 7px; height: 1px; background: var(--exo-border-control); }
.flow-step { position: relative; padding-top: 2.25rem; display: grid; gap: .6rem; align-content: start; }
.flow-step p { color: var(--exo-text-muted); max-width: 30em; }
.node { position: absolute; top: 0; left: 0; width: 15px; height: 15px; border-radius: 50%; background: var(--exo-page); border: 2px solid var(--exo-border-control); }
.node.probe { background: var(--exo-probe); border-color: var(--exo-probe); }
.node-end { background: var(--exo-action); border-color: var(--exo-action); }
@media (max-width: 52rem) {
  .flow { grid-template-columns: 1fr; gap: 2rem; padding-left: 2.25rem; }
  .flow::before { left: 7px; right: auto; top: 7px; bottom: 0; width: 1px; height: auto; }
  .flow-step { padding-top: 0; }
  .node { left: -2.25rem; top: .3rem; }
}

/* Checks — a compact spec list */
.checks { padding-block: var(--exo-section-space); }
.checks-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: .5rem 2rem; }
.checks-head p { color: var(--exo-text-muted); font-size: .9375rem; }
.check-list { margin: 2.25rem 0 0; border-top: 1px solid var(--exo-text); }
.check { display: grid; grid-template-columns: 13rem minmax(0, 1fr) minmax(0, 1fr); gap: .5rem 2rem; align-items: baseline; padding-block: 1.25rem; border-bottom: 1px solid var(--exo-border); }
.check dt { font: 700 1.2rem/1.3 var(--exo-font-display); letter-spacing: -.02em; }
.check dd { margin: 0; }
.check .q { color: var(--exo-text-muted); }
.check .ex code { font-size: .75rem; color: var(--exo-action); }
@media (max-width: 52rem) { .check { grid-template-columns: 1fr; } }

/* Note */
.note { padding-block: 0 var(--exo-section-space); display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 1.5rem 4rem; }
@media (max-width: 52rem) { .note { grid-template-columns: 1fr; } }
.note-body { display: grid; gap: 1.1rem; font-size: clamp(1.1rem, .5vw + 1rem, 1.3rem); line-height: 1.6; max-width: 36em; }
.sig { font: .8rem/1.5 var(--exo-font-mono); color: var(--exo-text-muted); }

/* Early access */
.access { padding-block: 0 var(--exo-section-space); }
.access-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2rem 4rem; padding: clamp(1.5rem, 4vw, 3rem); border: 1px solid var(--exo-border); border-radius: var(--exo-radius-panel); background: var(--exo-surface); }
@media (max-width: 52rem) { .access-card { grid-template-columns: 1fr; } }
.access-copy p { margin-top: 1rem; color: var(--exo-text-muted); max-width: 28em; }
.form { display: grid; gap: .5rem; align-content: start; }
.form label[for="access-email"] { font-weight: 600; font-size: .9375rem; }
.form input[type="email"] { width: 100%; min-height: 3rem; padding: 0 .9rem; border: 1px solid var(--exo-border-control); border-radius: var(--exo-radius-control); background: var(--exo-page); color: var(--exo-text); font: inherit; }
.form input[type="email"]::placeholder { color: var(--exo-text-muted); }
.form input[aria-invalid="true"] { border-color: var(--exo-down); }
.form-error { color: var(--exo-down-text); font-size: .875rem; min-height: 0; }
.form-error:empty { display: none; }
.trap { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.consent { display: flex; gap: .6rem; align-items: flex-start; margin-top: .4rem; font-size: .9375rem; cursor: pointer; }
.consent input { width: 20px; height: 20px; margin: .15rem 0 0; accent-color: var(--exo-action); flex: none; }
.submit { margin-top: .6rem; width: 100%; min-height: 3rem; }
.submit[disabled] { opacity: .7; cursor: progress; }
.form-result { font-size: .9375rem; }
.form-result:empty { display: none; }
.form-result.is-success { color: var(--exo-up-text); }
.form-result.is-error { color: var(--exo-down-text); }
.privacy { font-size: .8125rem; color: var(--exo-text-muted); }

/* Footer */
.foot { border-top: 1px solid var(--exo-border); padding-block: 2.5rem 3rem; font-size: .875rem; color: var(--exo-text-muted); }
.foot-row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2rem; }
.foot-row nav { display: flex; flex-wrap: wrap; gap: .25rem 1.4rem; margin-left: auto; }
.foot-row nav a { text-decoration: none; padding-block: .6rem; }
.foot-row nav a:hover { color: var(--exo-text); }
.foot-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 2rem; margin-top: 1.5rem; font: .72rem/1.5 var(--exo-font-mono); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0ms !important; }
}

/* A quiet, centered opening gives the message room before showing the product. */
.top-row { min-height: 5rem; }
.top { position: relative; }
.hero { display: block; padding-block: var(--exo-space-24) var(--exo-space-16); }
.hero-copy { max-width: 48rem; margin-inline: auto; text-align: center; }
.hero-category { font-size: var(--exo-text-sm); color: var(--exo-text-muted); margin-bottom: var(--exo-space-6); }
.hero h1 { margin-bottom: var(--exo-space-6); }
.hero-line { font-size: clamp(1.25rem, 2.5vw, 1.75rem); font-weight: 500; }
.hero-text { max-width: 34rem; margin-inline: auto; margin-top: var(--exo-space-4); }
.hero-actions, .stage { justify-content: center; }
.hero-actions .btn { min-height: 3rem; }
.stage { margin-top: var(--exo-space-6); font-size: var(--exo-text-data); }
.stage-k { border: 0; padding: 0; text-transform: none; font: inherit; }
.stage-k::after { content: '·'; padding-left: var(--exo-space-3); }
.hero-figure { margin-top: var(--exo-space-16); scroll-margin-top: var(--exo-space-8); }
.inst-head { padding: var(--exo-space-4) var(--exo-space-6); }
.inst-title { padding: var(--exo-space-6); }
.inst-h { font-size: 1.375rem; }
.instrument-body { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,1fr); }
.records, .dash { min-width: 0; padding: 0 var(--exo-space-6) var(--exo-space-6); }
.panel-label { display: flex; flex-wrap: wrap; gap: var(--exo-space-2); justify-content: space-between; font: 500 var(--exo-text-data)/1.5 var(--exo-font-mono); margin-bottom: var(--exo-space-4); }
.panel-label span { color: var(--exo-text-muted); font-weight: 400; }
.events { margin: 0; padding: 0; }
.ev { grid-template-columns: 1.35rem 4.4rem 2.3rem minmax(0, 1fr); gap: var(--exo-space-2); padding-block: var(--exo-space-3); border-top: 1px solid var(--exo-border); border-radius: 0; }
.ev .what { grid-column: 4; font-size: var(--exo-text-sm); }
.ev .res { grid-column: 4; text-align: left; }
.ev.sys { margin-top: var(--exo-space-3); }
.summary { margin: 0; padding: 0 var(--exo-space-6) var(--exo-space-6); border-top: 0; border-left: 1px solid var(--exo-border); }
.sum-row { grid-template-columns: 1fr; gap: var(--exo-space-2); padding-block: var(--exo-space-3); border-top: 1px solid var(--exo-border); }
.sum-k { flex-direction: row; align-items: baseline; gap: var(--exo-space-2); }
.kind, .tag, .ref { font-size: var(--exo-text-data); }
.missing { padding: var(--exo-space-4) var(--exo-space-6); border-top: 1px solid var(--exo-border); color: var(--exo-text-muted); font-size: var(--exo-text-data); }
.missing b { color: var(--exo-text); margin-right: var(--exo-space-3); }
.ruled { font-size: var(--exo-text-data); }
.how h2 { max-width: 17em; }
.checks { border-top: 1px solid var(--exo-border); }
.checks-head { align-items: flex-end; }
.checks h2 { max-width: 13em; }
.check { grid-template-columns: 13rem minmax(0,1.2fr) minmax(0,1fr); padding-block: var(--exo-space-6); }
.rules-band { padding-block: var(--exo-space-24); color: var(--exo-text); background: var(--exo-page); border-block: 1px solid var(--exo-border); }
.trust-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--exo-space-24); }
.trust-grid .mono-k { margin-bottom: var(--exo-space-6); text-transform: none; }
.trust-grid h2 { max-width: 13em; }
.trust-copy { color: var(--exo-text-muted); font-size: var(--exo-text-lead); }
.trust-copy ul { padding-left: var(--exo-space-6); margin-block: var(--exo-space-6); }
.trust-copy li { padding-left: var(--exo-space-2); margin-block: var(--exo-space-3); }
.trust-copy li::marker { color: var(--exo-border-control); }
.trust-copy a { color: var(--exo-text); display: inline-flex; gap: var(--exo-space-4); min-height: var(--exo-control-height); align-items: center; font-size: var(--exo-text-base); }
.note { padding-top: var(--exo-section-space); }
.note h2 { font-size: 2rem; max-width: 13em; }
.note-body { font-size: var(--exo-text-lead); }
.access-card { padding: var(--exo-space-12); }
.consent { min-height: var(--exo-control-height); align-items: center; }
.consent input { margin-top: 0; }
.foot-row nav a { display: inline-flex; min-height: var(--exo-control-height); align-items: center; }
.confirmation { padding-block: var(--exo-space-24); }
.confirmation p { margin-block: var(--exo-space-6); }
@media (max-width: 60rem) {
 .instrument-body { grid-template-columns: 1fr; }
 .summary { border-left: 0; padding-top: var(--exo-space-6); border-top: 1px solid var(--exo-border); }
 .ev { grid-template-columns: 1.35rem 4.4rem 3rem minmax(0,1fr) auto; }
 .ev .res { grid-column: 5; }
 .trust-grid { gap: var(--exo-space-12); }
}
@media (max-width: 52rem) {
 .hero { padding-top: var(--exo-space-16); }
 .check, .trust-grid { grid-template-columns: 1fr; }
 .rules-band { padding-block: var(--exo-space-16); }
 .access-card { padding: var(--exo-space-6); }
 .top-row { flex-wrap: wrap; padding-block: var(--exo-space-3); }
 .nav { flex-basis: 100%; order: 2; }
 .js .nav { flex-basis: auto; }
}
@media (max-width: 34rem) {
 .hero-figure { margin-top: var(--exo-space-12); }
 .inst-head, .inst-title, .missing { padding-inline: var(--exo-space-4); }
 .inst-head { flex-wrap: wrap; }
 .inst-path { font-size: var(--exo-text-data); }
 .tag { margin-left: 0; }
 .records, .dash, .summary { padding-inline: var(--exo-space-4); }
 .ev { grid-template-columns: 1.35rem 4.4rem minmax(0,1fr); }
 .ev .where { grid-column: 3; }
 .ev .what, .ev .res { grid-column: 2 / -1; }
 .hero-actions { gap: var(--exo-space-3); }
 .hero-actions .btn { width: 100%; }
 .foot-row nav { margin-left: 0; }
}

/* Sculptural opening: a strong editorial composition, followed by the evidence. */
.top { background: var(--exo-page); color: var(--exo-text); border-bottom: 0; }
.top .nav .btn-primary { background: var(--exo-surface-raised); color: var(--exo-text); border-color: var(--exo-border-control); }
.top .nav .btn-primary:hover { background: var(--exo-border); }
.hero { padding: 0; background: var(--exo-page); color: var(--exo-text); overflow: hidden; }
.hero-layout { position: relative; display: grid; grid-template-columns: 1fr 1fr; align-items: center; min-height: 560px; padding-block: var(--exo-space-8); }
.hero-copy { position: relative; z-index: 1; text-align: left; margin: 0; max-width: 39rem; }
.hero-category { display: inline-flex; align-items: center; gap: var(--exo-space-6); padding: var(--exo-space-2) var(--exo-space-4); min-height: var(--exo-control-height); border: 1px solid var(--exo-border-control); border-radius: 999px; text-decoration: none; margin-bottom: var(--exo-space-8); font-size: var(--exo-text-sm); }
.hero-category:hover { background: var(--exo-surface); color: var(--exo-text); }
.hero h1 { font-size: clamp(5rem, 8.6vw, 8rem); font-weight: 600; letter-spacing: -.07em; line-height: .97; margin-bottom: var(--exo-space-8); }
.hero h1 span { color: var(--exo-text); }
.hero-line { font-size: var(--exo-text-lead); color: var(--exo-text); margin-top: 0; }
.hero-text { font-size: var(--exo-text-lead); max-width: 27rem; margin: var(--exo-space-3) 0 0; color: var(--exo-text-muted); }
.hero-actions, .stage { justify-content: flex-start; }
.hero-actions { margin-top: var(--exo-space-8); }
.hero-actions .btn { min-height: 3.25rem; }
.hero-actions .btn-quiet { border-color: transparent; padding-inline: var(--exo-space-4); color: var(--exo-text-muted); }
.hero-actions .btn-quiet:hover { color: var(--exo-text); }
.hero-art { position: relative; width: 120%; margin-left: -5%; pointer-events: none; }
.hero-art img { display: block; width: 100%; height: auto; mask-image: radial-gradient(ellipse 49% 48% at 50% 49%, black 53%, transparent 100%); }
.hero-baseline { display: flex; justify-content: space-between; gap: var(--exo-space-6); padding-block: var(--exo-space-6) var(--exo-space-8); font-size: var(--exo-text-sm); color: var(--exo-text-muted); }
.hero-baseline a { text-decoration: none; display: inline-flex; gap: var(--exo-space-6); min-height: var(--exo-control-height); align-items: center; }
.hero-baseline > span { display: inline-flex; align-items: center; }
.demo-section { padding-block: var(--exo-space-12) var(--exo-space-24); }
.demo-heading { display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--exo-space-16); align-items: end; }
.demo-heading .mono-k { margin-bottom: var(--exo-space-4); text-transform: none; }
.demo-heading > p { color: var(--exo-text-muted); font-size: var(--exo-text-lead); max-width: 28rem; }
.demo-section .hero-figure { margin-top: var(--exo-space-12); }
@media (min-width: 90rem) { .hero-layout { min-height: 620px; } }
@media (max-width: 60rem) {
 .hero-layout { min-height: 560px; }
 .hero h1 { font-size: clamp(4.5rem,10vw,6rem); }
 .hero-art { width: 155%; margin-left: -18%; }
 .hero-copy { max-width: 28rem; }
}
@media (max-width: 52rem) {
 .hero-layout { grid-template-columns: 1fr; min-height: auto; padding-top: var(--exo-space-4); padding-bottom: var(--exo-space-8); }
 .hero-copy { max-width: 34rem; }
 .hero-art { width: min(100%, 32rem); margin: -1rem auto 0; }
 .hero-category { margin-bottom: var(--exo-space-6); font-size: var(--exo-text-data); }
 .hero h1 { font-size: clamp(4.5rem,15vw,7rem); }
 .hero-baseline { flex-wrap: wrap; gap: var(--exo-space-2); }
 .demo-heading { grid-template-columns: 1fr; gap: var(--exo-space-6); }
 .demo-section { padding-block: var(--exo-space-16); }
}
@media (max-width: 34rem) {
 .hero-actions .btn { width: auto; padding-inline: var(--exo-space-3); font-size: var(--exo-text-sm); }
 .hero-actions { gap: var(--exo-space-2); }
 .hero-text { font-size: var(--exo-text-base); }
 .hero-line { font-size: var(--exo-text-base); }
 .hero .stage { font-size: var(--exo-text-data); }
 .hero-art { margin-top: var(--exo-space-4); }
}

/* Original gentle motion on the rendered logo sculpture. */
.hero-art img { transform-origin: 50% 62%; }
.hero-art[data-motion] img { animation: sculpture-drift 14s ease-in-out infinite; animation-play-state: paused; }
.hero-art[data-motion="running"] img { animation-play-state: running; }
.art-motion { position: absolute; right: 20%; bottom: 3%; pointer-events: auto; min-height: var(--exo-control-height); padding: var(--exo-space-2) var(--exo-space-3); border: 0; border-radius: var(--exo-radius-control); color: var(--exo-text-muted); background: var(--exo-page); font-size: var(--exo-text-data); cursor: pointer; }
.art-motion:hover { color: var(--exo-text); background: var(--exo-surface); }
@keyframes sculpture-drift {
  0%, 100% { transform: translateY(3px) rotate(-.45deg); }
  50% { transform: translateY(-5px) rotate(.45deg); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-art[data-motion] img { animation: none; transform: none; }
  .art-motion { display: none; }
}

@media (max-width: 52rem) {
  .hero-art { grid-row: 1; margin-top: 0; }
  .hero-copy { grid-row: 2; }
}

/* Keep mobile controls inside their container, including enlarged text. */
@media (max-width: 52rem) {
  .top { width: 100%; min-width: 0; }
  .top-row { gap: .5rem; min-width: 0; }
  .js .top-row { display: grid; grid-template-columns: minmax(0, 1fr) auto 44px; }
  .top .brand { min-width: 0; gap: 6px; font-size: clamp(18px, 5.8vw, 24px); }
  .top .brand .mark { width: 28px; height: 28px; flex-shrink: 0; }
  .theme-button { width: 44px; padding: 0; }
  .menu-button { padding-inline: 10px; font-size: 14px; }
  .js .nav { width: 100%; max-width: 100%; min-width: 0; box-sizing: border-box; }
  .js .nav a { min-width: 0; max-width: 100%; overflow-wrap: anywhere; }
  .js .nav .btn { white-space: normal; text-align: center; line-height: 1.4; padding-block: .75rem; }
  .hero-layout, .hero-copy, .hero-art, .access-card, .form { min-width: 0; max-width: 100%; }
  .hero-actions .btn { max-width: 100%; white-space: normal; line-height: 1.4; }
}
@media (max-width: 52rem) {
  .form { grid-template-columns: minmax(0, 1fr); }
  .form > * { min-width: 0; }
  .form .submit { white-space: normal; line-height: 1.4; padding-block: .75rem; }
}

/* Transparent artwork needs no atmospheric backdrop or radial fade. */
.hero-art img { mask-image: none; }
.development-tag { display: inline-block; margin-top: var(--exo-space-4); padding: var(--exo-space-1) var(--exo-space-2); border: 1px solid var(--exo-border); border-radius: 4px; font: var(--exo-text-data)/1.5 var(--exo-font-body); color: var(--exo-text-muted); }
.theme-button:hover { border-color: transparent; }
.theme-button:focus:not(:focus-visible), .theme-button[data-pointer-focus] { outline: none; box-shadow: none; border-color: transparent; }
.theme-button:focus-visible:not([data-pointer-focus]) { outline: 2px solid var(--exo-focus); outline-offset: 3px; }
.demo-section { padding-top: var(--exo-space-6); }
.demo-section .hero-figure { margin-top: var(--exo-space-6); }
@media (min-width: 52.001rem) {
  .hero-layout { min-height: 0; padding-block: var(--exo-space-6); }
  .hero h1 { font-size: clamp(4.5rem, 7.3vw, 6.5rem); margin-bottom: var(--exo-space-6); }
  .hero-actions { margin-top: var(--exo-space-6); }
  .hero-art { height: 500px; }
  .hero-art picture { display: block; height: 100%; }
  .hero-art img { height: 100%; object-fit: contain; }
}

/* Dark page: a slightly deeper blue keeps the primary button from looking washed out. */
[data-theme="dark"] .btn-primary:not(.top .btn-primary) { background: #5E97EC; }
[data-theme="dark"] .btn-primary:not(.top .btn-primary):hover { background: var(--exo-action); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .btn-primary:not(.top .btn-primary) { background: #5E97EC; }
  :root:not([data-theme="light"]) .btn-primary:not(.top .btn-primary):hover { background: var(--exo-action); }
}

/* Single-screen page: the hero fills the viewport; the header keeps two actions and no menu. */
.hero-solo .hero-layout { min-height: calc(100svh - 5rem); }
.nav-solo { gap: var(--exo-space-6); }
@media (max-width: 52rem) {
  .hero-solo .hero-layout { min-height: 0; }
  .js .nav.nav-solo, .nav.nav-solo { position: static; display: flex; flex-direction: row; flex-basis: auto; order: 0; align-items: center; gap: var(--exo-space-3); padding: 0; background: none; border: 0; width: auto; }
  .js .nav.nav-solo a:not(.btn) { padding-block: .6rem; border-bottom: 0; }
  .js .nav.nav-solo .btn { margin-top: 0; white-space: nowrap; }
}
@media (max-width: 52rem) { .hero-solo .hero-art { width: min(72%, 22rem); } }
@media (max-width: 34rem) { .nav-solo .btn { display: none; } }

/* Invitation request */
.invite { align-items: center; }
.invite-form { display: flex; flex-wrap: wrap; gap: var(--exo-space-2); width: 100%; max-width: 30rem; }
.invite-form input { flex: 1 1 14rem; min-width: 0; min-height: 3.25rem; padding: 0 var(--exo-space-4); border: 1px solid var(--exo-border-control); border-radius: var(--exo-radius-control); background: var(--exo-surface); color: var(--exo-text); font: inherit; }
.invite-form input::placeholder { color: var(--exo-text-muted); }
.invite-form input[aria-invalid="true"] { border-color: var(--exo-down); }
.invite-form .btn { min-height: 3.25rem; }
.invite-form .btn[disabled] { opacity: .7; cursor: progress; }
.invite-msg { flex-basis: 100%; font-size: var(--exo-text-sm); color: var(--exo-text-muted); }
.invite-msg:empty { display: none; }
.invite-msg[data-kind="error"] { color: var(--exo-down-text); }
.invite-msg[data-kind="success"] { color: var(--exo-text); font-size: var(--exo-text-lead); }

/* Legal pages: a readable column in the site's type. */
.legal { max-width: 46rem; padding-block: var(--exo-space-16) var(--exo-space-24); }
.legal h1 { margin: var(--exo-space-2) 0 var(--exo-space-2); font-size: clamp(2.25rem, 5vw, 3.25rem); line-height: 1.05; }
.legal h2 { margin: var(--exo-space-12) 0 var(--exo-space-4); font-size: 1.25rem; }
.legal p, .legal li { line-height: 1.7; }
.legal p { margin: 0 0 var(--exo-space-4); }
.legal ul { margin: 0 0 var(--exo-space-4); padding-left: 1.25rem; }
.legal li { margin-bottom: var(--exo-space-2); }
.legal a { color: var(--exo-action); }
.legal-meta { color: var(--exo-text-muted); }
.site-footer { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: var(--exo-space-4) var(--exo-space-8); padding-block: var(--exo-space-8); border-top: 1px solid var(--exo-border); color: var(--exo-text-muted); font-size: .875rem; }
.footer-company { display: grid; gap: .2rem; }
.footer-company strong { color: var(--exo-text); font-weight: 600; }
.footer-links { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; }
.footer-copy { flex-basis: 100%; }
.site-footer a { color: inherit; }
.site-footer a:hover { color: var(--exo-text); }

/* Product sections (2026-10): what the first release does, with screenshots. */
.lead { color: var(--exo-text-muted); font-size: var(--exo-text-lead); line-height: 1.6; max-width: 38em; }
.product, .sequence, .ledger, .spec, .next { padding-block: clamp(3.5rem, 7vw, 6rem); }
.product { border-top: 1px solid var(--exo-border); }
.product-intro { display: grid; gap: 1rem; margin-bottom: clamp(2rem, 4vw, 3rem); }
.product-intro h2 { max-width: 16em; }

/* A screenshot in a quiet browser frame, labelled as example data. */
.shot { margin: 0; min-width: 0; }
.shot-frame { overflow: hidden; border: 1px solid var(--exo-border); border-radius: var(--exo-radius-panel); background: var(--exo-surface); box-shadow: 0 1px 0 rgb(0 0 0 / .04), 0 30px 70px -36px rgb(24 26 25 / .45); }
[data-theme="dark"] .shot-frame { box-shadow: none; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .shot-frame { box-shadow: none; } }
.shot-bar { display: flex; align-items: center; gap: 6px; padding: .55rem .85rem; border-bottom: 1px solid var(--exo-border); background: var(--exo-surface-raised); }
.shot-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--exo-border-control); opacity: .55; }
.shot-bar span { margin-left: .6rem; font: .72rem/1 var(--exo-font-mono); color: var(--exo-text-muted); }
.shot-img img { display: block; width: 100%; height: auto; }
.shot figcaption { display: flex; flex-wrap: wrap; align-items: baseline; gap: .4rem .75rem; margin-top: .85rem; color: var(--exo-text-muted); font-size: .9rem; }
.example-tag { font: 500 .66rem/1 var(--exo-font-mono); letter-spacing: .06em; text-transform: uppercase; padding: .32rem .45rem; border: 1px solid var(--exo-border-control); border-radius: 4px; }

/* What happens when a check fails: a line that starts at the probe. */
.sequence h2 { margin-bottom: clamp(1.75rem, 4vw, 2.75rem); }
.sequence-line { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1.5rem; position: relative; }
.sequence-line::before { content: ""; position: absolute; left: 7px; right: 0; top: 7px; height: 2px; background: linear-gradient(90deg, var(--exo-probe), var(--exo-action) 30%, var(--exo-border-control)); }
.sequence-line li { position: relative; display: grid; gap: .35rem; padding-top: 2rem; font-size: .95rem; }
.sequence-line strong { font-weight: 600; }
.sequence-line li > span:not(.node) { color: var(--exo-text-muted); }
.node { position: absolute; top: 0; left: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--exo-page); border: 2px solid var(--exo-action); }
.node-probe { background: var(--exo-probe); border-color: var(--exo-probe); }
@media (max-width: 52rem) {
  .sequence-line { grid-template-columns: 1fr; gap: 1.4rem; padding-left: 2.25rem; }
  .sequence-line::before { left: 7px; right: auto; top: 8px; bottom: 8px; width: 2px; height: auto; background: linear-gradient(180deg, var(--exo-probe), var(--exo-action) 25%, var(--exo-border-control)); }
  .sequence-line li { padding-top: 0; }
  .node { left: -2.25rem; top: .2rem; }
}

/* One page per check: copy beside the screenshot. */
.ledger { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 4vw, 3.5rem); align-items: start; border-top: 1px solid var(--exo-border); }
.ledger-copy { display: grid; gap: 1rem; position: sticky; top: 6rem; }
.facts { margin: .75rem 0 0; display: grid; }
.facts div { display: grid; grid-template-columns: 9.5rem minmax(0, 1fr); gap: .25rem 1rem; padding-block: .8rem; border-top: 1px solid var(--exo-border); font-size: .95rem; }
.facts dt { font-weight: 600; }
.facts dd { margin: 0; color: var(--exo-text-muted); }
@media (max-width: 60rem) { .ledger { grid-template-columns: 1fr; } .ledger-copy { position: static; } }
@media (max-width: 34rem) { .facts div { grid-template-columns: 1fr; } }

/* Alerts: a full-bleed dark band in both themes. */
.alerts-band { background: var(--exo-surface); color: var(--exo-text); padding-block: clamp(3.5rem, 7vw, 6rem); }
.alerts-layout { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 4vw, 3.5rem); align-items: center; }
.alerts-copy { display: grid; gap: 1rem; }
.alert-points { list-style: none; margin: .5rem 0 0; padding: 0; display: grid; gap: .9rem; }
.alert-points li { padding-left: 1.1rem; border-left: 2px solid var(--exo-action); color: var(--exo-text-muted); font-size: .95rem; }
.alert-points strong { color: var(--exo-text); font-weight: 600; }
@media (max-width: 60rem) { .alerts-layout { grid-template-columns: 1fr; } }

/* Checks: a compact spec list, then the form. */
.spec { display: grid; gap: clamp(1.75rem, 3vw, 2.5rem); }
.spec .shot { max-width: 62rem; }
.spec-head { display: grid; gap: .75rem; }
.spec-list { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(1.5rem, 4vw, 3rem); }
.spec-list div { padding-block: .9rem; border-top: 1px solid var(--exo-border); }
.spec-list dt { font: 500 .75rem/1.5 var(--exo-font-mono); letter-spacing: .04em; text-transform: uppercase; color: var(--exo-text-muted); }
.spec-list dd { margin: .3rem 0 0; }
@media (max-width: 48rem) { .spec-list { grid-template-columns: 1fr; } }

/* Next: a short note from the founder. */
.next { border-top: 1px solid var(--exo-border); }
.next-inner { display: grid; gap: 1.25rem; max-width: 48rem; }
.next p { font-size: var(--exo-text-lead); line-height: 1.65; }
.next-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; margin-top: .5rem; }
.next-cta span { color: var(--exo-text-muted); font-size: .95rem; }

/* About: who runs Exometer and how to reach us (carrier brand verification). */
.about { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2rem, 4vw, 3.5rem); align-items: start; padding-block: clamp(3.5rem, 7vw, 6rem); border-top: 1px solid var(--exo-border); }
.about-copy { display: grid; gap: 1rem; }
.about-copy p { color: var(--exo-text-muted); font-size: var(--exo-text-lead); line-height: 1.65; }
.about-services { margin: .5rem 0 0; padding-left: 1.2rem; display: grid; gap: .5rem; }
.about-card { display: grid; gap: .9rem; padding: 1.5rem; border: 1px solid var(--exo-border); border-radius: var(--exo-radius-panel); background: var(--exo-surface); font-style: normal; line-height: 1.55; }
.about-card strong { font-size: 1.05rem; }
.about-card a { color: var(--exo-action); }
@media (max-width: 52rem) { .about { grid-template-columns: 1fr; } }

/* The SMS program page */
.legal ol { margin: 0 0 var(--exo-space-4); padding-left: 1.4rem; }
.legal blockquote { margin: 0 0 var(--exo-space-6); padding: 1rem 1.25rem; border-left: 3px solid var(--exo-action); background: var(--exo-surface); border-radius: 0 var(--exo-radius-control) var(--exo-radius-control) 0; color: var(--exo-text-muted); line-height: 1.65; }
.optin-shot { margin: 0 0 var(--exo-space-6); }
.optin-shot img { display: block; width: 100%; height: auto; border: 1px solid var(--exo-border); border-radius: var(--exo-radius-panel); }
.optin-shot figcaption { margin-top: .6rem; color: var(--exo-text-muted); font-size: .875rem; }
.samples { list-style: none; padding-left: 0 !important; display: grid; gap: .6rem; }
.samples code { display: block; padding: .75rem 1rem; border: 1px solid var(--exo-border); border-radius: var(--exo-radius-control); background: var(--exo-surface); white-space: normal; overflow-wrap: anywhere; line-height: 1.55; }