/* Page composition only. Shared components and all design values come from ui.css. */
html { scroll-behavior: smooth; scroll-padding-top: 120px; }
.ui-root { font-size: var(--ui-fs-lg); }
.ui-root a { text-decoration: none; }
.ui-root .brand, .ui-root .links a, .ui-root .foot a { color: inherit; }
.ui-root .btn { color: var(--ui-text); }
.ui-root .ui-btn--primary { color: var(--ui-cta-fg); }
[hidden] { display: none !important; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 var(--ui-sp-6); }
.wrap > *, .low > *, .panel > *, .row > * { min-width: 0; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1, h2, h3 { font-weight: var(--ui-weight-semibold); }
h1 { margin: 0; font-weight: var(--ui-weight-medium); font-size: clamp(calc(var(--ui-fs-2xl) * 1.64), 6vw, calc(var(--ui-fs-2xl) * 3)); line-height: .98; letter-spacing: -.05em; }
h2 { margin: var(--ui-sp-3) 0 var(--ui-sp-4); font-size: clamp(var(--ui-fs-2xl), 3.4vw, calc(var(--ui-fs-2xl) * 1.64)); line-height: 1.05; letter-spacing: -.035em; max-width: 20em; }
h3 { font-size: var(--ui-fs-xl); margin: var(--ui-sp-3) 0; }
h2 em, .dim { color: var(--ui-text-muted); font-style: normal; }
.two-tone > span { display: block; }
p { line-height: var(--ui-lh-body); }
.sub, .sec-head p, .fine, .tm, .panel-cap { color: var(--ui-text-muted); }
.fine, .tm, .panel-cap { font-size: var(--ui-fs-sm); }
.eyebrow { font: var(--ui-fs-xs) var(--ui-font-mono); text-transform: uppercase; letter-spacing: var(--ui-tracking-caps); color: var(--ui-text-muted); }
.top { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--ui-line); background: var(--ui-bg); }
.bar { display: flex; align-items: center; gap: var(--ui-sp-5); min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: var(--ui-sp-2); font-size: var(--ui-fs-xl); font-weight: var(--ui-weight-semibold); white-space: nowrap; }
.mark { width: 28px; height: 28px; flex-shrink: 0; }
.mark-a { stroke: var(--ui-agent-a); } .mark-b { stroke: var(--ui-agent-b); } .mark-c { fill: var(--ui-agent-c); }
.links { display: flex; gap: var(--ui-sp-5); font-size: var(--ui-fs-md); color: var(--ui-text-muted); margin-right: auto; }
.links a { white-space: nowrap; }
.btn { text-decoration: none; }
.hero { position: relative; border-bottom: 1px solid var(--ui-line); }
.hero::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(var(--ui-dots) 1px, transparent 1.2px); background-size: 20px 20px; mask-image: linear-gradient(var(--ui-mask-solid), transparent 62%); }
.hero canvas { position: absolute; left: 0; top: 0; width: 100%; height: 330px; }
.hud { position: relative; height: 330px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: var(--ui-sp-3); }
.who { display: inline-flex; align-items: center; gap: var(--ui-sp-2); width: fit-content; padding: var(--ui-sp-2) var(--ui-sp-3); font: var(--ui-fs-sm) var(--ui-font-mono); box-shadow: var(--ui-shadow); }
.who > span + span { color: var(--ui-text-muted); }
.who.b { justify-self: end; }
/* The hero chat where the waves meet: three one-row messages, Fred's agent left and Ana's right, each marked like a
   conversation turn (a square dot with a soft halo and a line fading down). It glows in the colour of the agent whose
   message just arrived. */
.hchat { justify-self: center; width: 380px; padding: var(--ui-sp-3); background: var(--ui-surface); border: 1px solid var(--ui-line); box-shadow: var(--ui-shadow); font-size: var(--ui-fs-sm); transition: box-shadow var(--ui-duration-normal) var(--ui-ease-out); }
.hchat.hit-a { box-shadow: 0 0 0 7px color-mix(in srgb, var(--ui-agent-a) 22%, transparent), var(--ui-shadow); }
.hchat.hit-b { box-shadow: 0 0 0 7px color-mix(in srgb, var(--ui-agent-b) 26%, transparent), var(--ui-shadow); }
.hchat__list { display: grid; gap: 10px; }
.hmsg { position: relative; display: grid; gap: 2px; justify-self: start; max-width: 86%; padding: 0 0 6px 22px; white-space: nowrap; transition: opacity var(--ui-duration-normal) var(--ui-ease-out), transform var(--ui-duration-normal) var(--ui-ease-out); }
.hmsg--b { justify-self: end; justify-items: end; text-align: right; padding: 0 22px 6px 0; }
.hmsg::before { content: ""; position: absolute; left: 7px; top: 15px; bottom: 0; width: 2px; background: linear-gradient(var(--ui-tone), transparent); opacity: .45; }
.hmsg::after { content: ""; position: absolute; left: 4.5px; top: 4.5px; width: 7px; height: 7px; background: var(--ui-tone); box-shadow: 0 0 0 3px var(--ui-tone-soft); }
.hmsg--b::before { left: auto; right: 7px; }
.hmsg--b::after { left: auto; right: 4.5px; }
.hmsg__who { font: var(--ui-fs-xs) var(--ui-font-mono); color: var(--ui-tone-ink); }
.hmsg.is-new { opacity: 0; transform: translateY(10px); }
.ui-status-dot--live::before { background: var(--ui-tone); }
.low { position: relative; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 48px; align-items: end; padding-bottom: 56px; }
h1 .a { color: var(--ui-agent-a-ink); } h1 .b { color: var(--ui-agent-b-ink); }
.low .sub { margin: 0 0 var(--ui-sp-5); font-size: var(--ui-fs-lg); }
.cta-form { display: block; }
.notify { width: 100%; }
.row { display: flex; align-items: stretch; gap: var(--ui-sp-2); }
.row input { flex: 1; width: 0; }
.notify-lg .row { gap: 0; }
.notify-lg .ui-btn, .notify-lg .ui-input { min-height: 46px; }
.hp { display: none; }
.sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
form .done { font-size: var(--ui-fs-md); color: var(--ui-ok-ink); margin: var(--ui-sp-2) 0 0; }
form .done:empty { display: none; }
form .done.err { color: var(--ui-danger-ink); }
.sec { padding: 64px 0; border-bottom: 1px solid var(--ui-line); }
.sec.flush { padding-block: 56px; }
.panel { margin-top: var(--ui-sp-6); border: 1px solid var(--ui-line-strong); background: var(--ui-surface-2); box-shadow: var(--ui-shadow); display: grid; grid-template-columns: minmax(0, 1fr) 320px; }

.panel-bar { grid-column: 1 / -1; display: flex; align-items: center; flex-wrap: wrap; gap: var(--ui-sp-4); padding: var(--ui-sp-4) var(--ui-sp-5); border-bottom: 1px solid var(--ui-line); background: var(--ui-surface); }
.talk { padding: var(--ui-sp-5) var(--ui-sp-6); }
.ui-turn { animation: none; }
.people { border-left: 1px solid var(--ui-line); padding: var(--ui-sp-5); display: flex; flex-direction: column; gap: var(--ui-sp-3); background: var(--ui-surface); }
.people .ui-bubble { max-width: 100%; }
.panel-cap { margin-bottom: 0; }
.trust { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--ui-sp-5); margin: var(--ui-sp-6) 0 0; list-style: none; padding: 0; }
.trust > li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--ui-sp-4); align-items: start; padding: var(--ui-sp-5); border: 1px solid var(--ui-line-strong); background: var(--ui-surface); }
.trust-ic { display: grid; place-items: center; width: 44px; height: 44px; background: var(--ui-tone-soft); color: var(--ui-tone-ink); }
.trust-ic svg { width: 22px; height: 22px; }
.trust h3 { margin-top: 0; }
.trust p { margin: 0; color: var(--ui-text-muted); }
.closing { position: relative; background: var(--ui-code-bg); color: var(--ui-code-fg); padding: 80px 0; border-block: 1px solid var(--ui-line-strong); }
.closing::before { content: ""; pointer-events: none; position: absolute; inset: 0; background-image: radial-gradient(color-mix(in srgb, var(--ui-code-fg) 16%, transparent) 1px, transparent 1.2px); background-size: 20px 20px; mask-image: linear-gradient(90deg, transparent 30%, var(--ui-mask-solid)); }
.closing .wrap { position: relative; }
.ui-root .closing .ui-btn--primary { background: var(--ui-code-fg); border-color: var(--ui-code-fg); color: var(--ui-code-bg); }
.closing form .done { color: color-mix(in srgb, var(--ui-ok-ink) 25%, var(--ui-code-fg)); }
.closing form .done.err { color: color-mix(in srgb, var(--ui-danger-ink) 25%, var(--ui-code-fg)); }
.closing .inner { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: var(--ui-sp-5) 56px; align-items: center; }
.closing h2 { grid-row: 1 / 3; margin: 0; }
.closing p { margin: 0; }
.foot { padding: var(--ui-sp-6) 0; color: var(--ui-text-muted); font-size: var(--ui-fs-sm); }
.foot .wrap, .foot-links { display: flex; align-items: center; gap: var(--ui-sp-5); flex-wrap: wrap; }
.grow { margin-right: auto; }
.skip { position: absolute; top: -100px; left: var(--ui-sp-4); z-index: 30; background: var(--ui-surface); padding: var(--ui-sp-3); }
.skip:focus { top: var(--ui-sp-3); }
.narrow { max-width: 850px; }
.doc { padding-top: var(--ui-sp-8); padding-bottom: var(--ui-sp-8); }
.doc h1 { font-size: clamp(var(--ui-fs-2xl), 5vw, calc(var(--ui-fs-2xl) * 1.86)); line-height: var(--ui-lh-tight); }
.doc h2 { font-size: var(--ui-fs-2xl); margin-top: var(--ui-sp-7); }
.doc a:not(.btn) { text-decoration: underline; }
.doc pre { max-width: 100%; overflow-x: auto; }
.doc li { margin-block: var(--ui-sp-3); }
.callout { border-left: 2px solid var(--ui-agent-c); padding: var(--ui-sp-4); background: var(--ui-agent-c-soft); }
.js .panel.pending .line { opacity: 0; transform: translateY(10px); }
.line { transition: opacity var(--ui-duration-normal) var(--ui-ease-out), transform var(--ui-duration-normal) var(--ui-ease-out); }
/* Stagger conversation lines on first entry. */
.line:nth-child(2 of .line) { transition-delay: var(--ui-duration-fast); }
.line:nth-child(3 of .line) { transition-delay: calc(var(--ui-duration-fast) * 2); }
.line:nth-child(4 of .line) { transition-delay: calc(var(--ui-duration-fast) * 3); }
.line:nth-child(5 of .line) { transition-delay: calc(var(--ui-duration-fast) * 4); }
.line:nth-child(6 of .line) { transition-delay: calc(var(--ui-duration-fast) * 5); }
.line:nth-child(7 of .line) { transition-delay: calc(var(--ui-duration-fast) * 6); }
.line:nth-child(8 of .line) { transition-delay: calc(var(--ui-duration-fast) * 7); }
@media (max-width: 1100px) {
  .bar { flex-wrap: wrap; gap: var(--ui-sp-3); padding-block: var(--ui-sp-3); }
  .bar > .btn { margin-left: auto; }
  .top .links { order: 3; width: 100%; overflow-x: auto; padding-block: var(--ui-sp-2); }
  .top.folded .links { height: 0; padding: 0; visibility: hidden; }
}
@media (max-width: 700px) {
  .trust { grid-template-columns: minmax(0, 1fr); }
  .wrap { padding-inline: var(--ui-sp-4); }
  .top .links { flex-wrap: wrap; gap: var(--ui-sp-2) var(--ui-sp-4); overflow: visible; }
  .top.folded .links { overflow: hidden; }
  .hud { height: 320px; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-content: center; row-gap: 28px; }
  .hchat { grid-column: 1 / 3; grid-row: 2; width: min(100%, 342px); }
  .hmsg { max-width: 92%; }
  .who { gap: var(--ui-sp-1); padding: var(--ui-sp-2); font-size: var(--ui-fs-xs); }
  .hero canvas { height: 320px; }
  .low, .closing .inner { grid-template-columns: minmax(0, 1fr); gap: var(--ui-sp-5); }
  .low { padding-bottom: var(--ui-sp-7); }
  .closing h2 { grid-row: auto; }
  .sec, .closing { padding-block: var(--ui-sp-8); }
  .panel { grid-template-columns: minmax(0, 1fr); margin-top: var(--ui-sp-6); }
  .panel-bar { grid-column: 1; padding: var(--ui-sp-4); }
  .talk, .people { padding: var(--ui-sp-4); }
  .people { border-left: 0; border-top: 1px solid var(--ui-line); }
  .notify-lg .ui-btn { padding-inline: var(--ui-sp-3); font-size: var(--ui-fs-sm); }
}
@media (prefers-reduced-motion: reduce) {
  .js .panel.pending .line { opacity: 1; transform: none; }
  .hchat, .hmsg { transition: none; }
  html { scroll-behavior: auto; }
}

.panel.solo { grid-template-columns: minmax(0, 1fr); margin-top: 0; }
.cta-form { max-width: 460px; }
/* The closing uses the hero's email field, drawn for the navy ground */
.ui-root .closing .ui-input { background: transparent; color: var(--ui-code-fg); border-color: color-mix(in srgb, var(--ui-code-fg) 45%, transparent); border-right: 0; }
.ui-root .closing .ui-input::placeholder { color: color-mix(in srgb, var(--ui-code-fg) 60%, transparent); }

/* C: three cards in a row */
.reasons3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--ui-sp-5); margin-top: var(--ui-sp-6); }
.reason-card { display: flex; flex-direction: column; }
.reason-card h3 { font-size: var(--ui-fs-title); margin: var(--ui-sp-2) 0; }
.reason-card > p { color: var(--ui-text-muted); margin: 0 0 var(--ui-sp-5); min-height: 4.8em; }
.reason-card .panel { flex: 1; align-content: start; }
.reason-card .talk { padding: var(--ui-sp-4); }
.reason-card .panel-bar { padding: var(--ui-sp-3) var(--ui-sp-4); }

/* Assistant marks in their own colours. A plain wrapped row as rendered; site.js turns it into a rolling
   carousel (a second copy of the track, both sliding left) when motion is allowed. Hover or focus holds it. */
.marks { display: flex; overflow: hidden; margin-top: var(--ui-sp-6); padding: var(--ui-sp-6) 0; }
.marks-track { display: flex; flex-wrap: wrap; flex-shrink: 0; align-items: center; gap: var(--ui-sp-5) 72px; padding: 0 var(--ui-sp-6); }
.mark-item { display: inline-flex; align-items: center; gap: var(--ui-sp-3); font-size: var(--ui-fs-xl); white-space: nowrap; }
.mark-item img { width: 36px; height: 36px; object-fit: contain; }
.marks.rolling { mask-image: linear-gradient(90deg, transparent, var(--ui-mask-solid) 12%, var(--ui-mask-solid) 88%, transparent); }
.marks.rolling .marks-track { flex-wrap: nowrap; padding: 0 72px 0 0; animation: marks-roll 32s linear infinite; }
.marks.rolling:hover .marks-track, .marks.rolling:focus-within .marks-track { animation-play-state: paused; }
@keyframes marks-roll { to { transform: translateX(-100%); } }

@media (max-width: 900px) {
  .reasons3 { grid-template-columns: minmax(0, 1fr); gap: var(--ui-sp-7); }
  .reason-card > p { min-height: 0; }
  .marks-track { gap: var(--ui-sp-4) var(--ui-sp-6); }
  .marks.rolling .marks-track { gap: 48px; padding-right: 48px; }
  .mark-item { font-size: var(--ui-fs-lg); }
  .mark-item img { width: 28px; height: 28px; }
}
/* For developers: the Claude Code thread and the Prosa conversation side by side, revealed in step */
.dev { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--ui-sp-6); align-items: stretch; margin-top: var(--ui-sp-6); }
.dev > div { display: flex; flex-direction: column; }
.dev .ui-label { display: block; margin-bottom: var(--ui-sp-3); }
.dev .panel, .devterm { flex: 1; }
.dev .panel { align-content: start; }
.ui-root .devterm { background: var(--ui-code-bg); color: var(--ui-code-fg); border: 1px solid var(--ui-code-bg); }
.devterm { display: flex; flex-direction: column; gap: var(--ui-sp-3); padding: var(--ui-sp-5); font: var(--ui-fs-sm)/1.55 var(--ui-font-mono); box-shadow: var(--ui-shadow); }
.tl.you { color: var(--ui-code-fg); }
.tl.peer { color: color-mix(in srgb, var(--ui-agent-b) 65%, var(--ui-code-fg)); }
.tl.sys { color: color-mix(in srgb, var(--ui-agent-a) 65%, var(--ui-code-fg)); }
.tl.ok { color: color-mix(in srgb, var(--ui-ok) 40%, var(--ui-code-fg)); }
.dev.anim [data-s] { opacity: 0; transform: translateY(8px); transition: opacity var(--ui-duration-normal) var(--ui-ease-out), transform var(--ui-duration-normal) var(--ui-ease-out); }
.dev.anim [data-s].on { opacity: 1; transform: none; }
.dev-ctl { margin: var(--ui-sp-4) 0 0; }
@media (max-width: 900px) { .dev { grid-template-columns: minmax(0, 1fr); gap: var(--ui-sp-5); } }

@media (prefers-reduced-motion: reduce) {
  .dev.anim [data-s] { opacity: 1; transform: none; transition: none; }
}