:root {
  --canvas: #F6F7F6; --surface: #FFFFFF; --sunken: #F1F3F2;
  --line: #E2E5E3; --line-strong: #C9CECB;
  --ink: #111816; --ink-2: #4A524E; --ink-3: #646C68;
  --accent: #3ECF8E; --accent-hover: #34BE80; --on-accent: #0B2A1C;
  --accent-ink: #18794E; --accent-ink-hover: #11603D;
  --accent-soft: #E8F8F0; --accent-soft-line: #B7EBD2;
  --warning-ink: #8A4B05; --warning-soft: #FEF3E2; --warning-soft-line: #F3D19E;
  --danger: #C2362B; --danger-soft: #FDECEA;
  --sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body { margin: 0; background: var(--canvas); color: var(--ink); font-family: var(--sans); font-size: 1rem; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
button, summary { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid #18794E; outline-offset: 2px; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-weight: 500; }
h1 { font-size: clamp(2.5rem, 4.1vw, 3.625rem); line-height: 1.08; letter-spacing: -.055em; }
h2 { font-size: clamp(2rem, 3.6vw, 2.875rem); line-height: 1.12; letter-spacing: -.045em; }
h3 { font-size: 1.125rem; line-height: 1.35; letter-spacing: -.015em; }
p { overflow-wrap: anywhere; }
.wrap { width: min(100% - 2.5rem, 72rem); margin-inline: auto; }
.small { font-size: .8125rem; }
.muted { color: var(--ink-3); }
.eyebrow { font-family: var(--mono); font-size: .6875rem; font-weight: 500; line-height: 1.5; letter-spacing: .065em; text-transform: uppercase; color: var(--ink-3); }
.skip-link { position: absolute; left: 1rem; top: -6rem; z-index: 10; padding: .75rem 1rem; background: var(--surface); border: 1px solid var(--ink-3); border-radius: 8px; }
.skip-link:focus { top: 1rem; }
.site-header { min-height: 5.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line-strong); }
.wordmark { min-height: 44px; display: inline-flex; align-items: center; gap: .4rem; font-size: 1.375rem; font-weight: 600; letter-spacing: -.055em; }
.brand-dot { width: .4375rem; height: .4375rem; border-radius: 50%; background: var(--accent); margin-top: .55rem; }
nav { display: flex; align-items: center; gap: 2rem; }
.nav-how { display: none; min-height: 44px; align-items: center; font-size: .875rem; }
.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 1.25rem; padding: .6875rem 1rem; border: 1px solid var(--ink-3); border-radius: 8px; font-size: .875rem; font-weight: 500; line-height: 1.35; }
.primary { background: var(--accent); color: var(--on-accent); }
a.primary:hover, button.primary:not(:disabled):hover { background: var(--accent-hover); }
.secondary { background: var(--surface); color: var(--ink); }
.text-link { min-height: 44px; display: inline-flex; align-items: center; gap: .625rem; font-size: .875rem; text-decoration: underline; text-underline-offset: .25rem; }
.text-link:hover, .nav-how:hover { color: var(--accent-ink); }
.hero { display: grid; gap: 3rem; padding-block: 3.75rem 4rem; }
.hero-copy > .eyebrow { margin-bottom: 1.5rem; display: flex; align-items: center; gap: .5rem; }
.live-dot { width: .4rem; height: .4rem; border-radius: 50%; background: var(--accent); }
.lede { color: var(--ink-2); max-width: 28rem; font-size: 1.0625rem; line-height: 1.65; margin-top: 1.5rem; }
.hero-actions { display: flex; gap: .75rem 1.5rem; flex-wrap: wrap; align-items: center; margin-block: 1.75rem .75rem; }
.chat-demo { min-width: 0; border: 1px solid var(--line-strong); border-radius: 12px; background: var(--surface); }
.room-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem 1.125rem; border-bottom: 1px solid var(--line); }
.room-title { font-size: .9375rem; font-weight: 500; margin-top: .125rem; }
.room-label { font-family: var(--mono); font-size: .625rem; color: var(--ink-3); }
.timeline { padding: 1rem; display: grid; gap: .8125rem; }
.system-line { text-align: center; color: var(--ink-3); font-size: .625rem; }
.message { display: flex; align-items: flex-start; gap: .5rem; }
.message-body { min-width: 0; max-width: 92%; }
.avatar { width: 1.625rem; height: 1.625rem; flex-shrink: 0; display: grid; place-items: center; border-radius: 50%; background: var(--sunken); color: var(--ink-2); font-size: .6875rem; margin-top: 1.35rem; }
.agent-avatar { border: 1px solid var(--line-strong); border-radius: 6px; background: var(--surface); font-family: var(--mono); }
.sender { display: flex; align-items: center; gap: .4rem; font-size: .6875rem; font-weight: 500; margin-bottom: .25rem; }
.bubble { padding: .625rem .75rem; border-radius: 12px; background: var(--sunken); font-size: .8125rem; line-height: 1.45; }
.agent .bubble { background: var(--surface); border: 1px solid var(--line-strong); }
.tag { border: 1px solid var(--line); border-radius: 999px; padding: 0 .3rem; color: var(--ink-3); font-family: var(--mono); font-size: .5625rem; font-weight: 400; }
.own { justify-content: flex-end; }
.own .sender { justify-content: flex-end; }
.own .bubble { background: var(--accent-soft); border: 1px solid var(--accent-soft-line); }
.approval-card { padding: .875rem; border: 2px solid var(--accent); border-radius: 12px; margin-left: 2.125rem; }
.card-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .5rem; margin-bottom: .25rem; }
.card-heading h2 { font-size: .9375rem; letter-spacing: -.015em; line-height: 1.3; }
.status { font-family: var(--mono); font-size: .625rem; border-radius: 999px; padding: .1875rem .5rem; border: 1px solid var(--warning-soft-line); }
.pending { color: var(--warning-ink); background: var(--warning-soft); }
.task-text { font-size: .8125rem; margin-top: .75rem; }
.plan { margin-block: .25rem .5rem; }
summary { cursor: pointer; min-height: 44px; }
.plan summary { display: list-item; align-content: center; font-size: .75rem; color: var(--ink-2); }
.plan p { font-size: .75rem; color: var(--ink-2); padding-bottom: .5rem; }
.approval-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.approval-actions .button { flex: 1; font-size: .8125rem; }
button:disabled { opacity: 1; cursor: default; }
.owner-note { font-size: .625rem; color: var(--ink-3); margin-top: .5rem; }
figcaption { border-top: 1px solid var(--line); padding: .75rem 1rem; font-family: var(--mono); font-size: .625rem; color: var(--ink-3); }
.section { padding-block: 4rem; border-top: 1px solid var(--line-strong); }
.section-heading > h2, .split-section h2, .limits-section h2, .faq-section h2 { margin-top: .875rem; }
.steps { display: grid; gap: 2rem; margin-top: 2.5rem; }
.step-number { display: inline-flex; font-family: var(--mono); font-size: .75rem; color: var(--accent-ink); margin-bottom: 1rem; }
.step h3 { margin-bottom: .625rem; }
.step p, .clients p, .limits-list p { font-size: .9375rem; color: var(--ink-2); line-height: 1.65; }
.approval-section { background: var(--sunken); border-block: 1px solid var(--line-strong); padding-block: 4rem; }
.split-section { display: grid; gap: 2.25rem; }
.split-section > div > p:not(.eyebrow) { color: var(--ink-2); margin-top: 1.25rem; max-width: 28rem; }
.decision-explainer { border: 1px solid var(--line-strong); background: var(--surface); border-radius: 12px; padding: 1.5rem; }
.decision-flow { display: grid; gap: .625rem; justify-items: center; font-family: var(--mono); font-size: .75rem; color: var(--ink-2); text-align: center; }
.decision-flow strong { font-weight: 500; color: var(--accent-ink); background: var(--accent-soft); border: 1px solid var(--accent-soft-line); border-radius: 999px; padding: .625rem 1.25rem; }
.honest-note { border-top: 1px solid var(--line); padding-top: 1.25rem; margin-top: 1.5rem; }
.honest-note h3 { font-size: .9375rem; }
.honest-note p { margin-top: .5rem; color: var(--ink-2); font-size: .8125rem; }
.approval-section + .section { border-top: 0; }
.section-intro { max-width: 35rem; margin-top: 1.25rem; color: var(--ink-2); }
.clients { display: grid; gap: 1.5rem; margin-top: 2.5rem; }
.clients article { border-top: 1px solid var(--line-strong); padding-top: 1.25rem; }
.clients h3 { margin-bottom: .5rem; }
.command { margin-top: 2rem; padding: 1.25rem; background: var(--sunken); border: 1px solid var(--line-strong); border-radius: 12px; }
pre { margin: .75rem 0; white-space: pre-wrap; overflow-wrap: anywhere; word-break: break-word; }
code { font-family: var(--mono); font-size: .8125rem; color: var(--ink); }
.limits-section { border-top: 1px solid var(--line-strong); padding-block: 4rem; display: grid; gap: 2.25rem; }
.limits-list { display: grid; gap: 1.5rem; }
.limits-list h3 { margin-bottom: .375rem; }
.faq-section { display: grid; gap: 2.25rem; }
.faq-list details { border-bottom: 1px solid var(--line-strong); }
.faq-list details:first-child { border-top: 1px solid var(--line-strong); }
.faq-list summary { padding-block: 1.125rem; padding-right: .5rem; font-size: 1rem; font-weight: 500; }
.faq-list details p { font-size: .9375rem; color: var(--ink-2); padding-bottom: 1.25rem; }
.final-cta { border-top: 1px solid var(--line-strong); text-align: center; padding-block: 4rem; }
.final-cta h2 { margin-block: 1rem 1.75rem; font-size: clamp(2.125rem, 4vw, 3.25rem); }
.final-cta > p:last-child { margin-top: 1rem; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: .75rem 2rem; flex-wrap: wrap; border-top: 1px solid var(--line-strong); padding-block: 1.5rem; }
.site-footer p { font-size: .8125rem; color: var(--ink-3); }
@media (min-width: 48rem) {
  .wrap { width: min(100% - 4rem, 72rem); }
  .nav-how { display: inline-flex; }
  .hero { padding-block: 5rem; }
  .hero-copy { max-width: 38rem; }
  .chat-demo { width: 100%; max-width: 36rem; }
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
  .clients { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; }
  .section, .limits-section, .approval-section { padding-block: 5rem; }
  .limits-section, .faq-section { grid-template-columns: 1fr 1.3fr; gap: 4rem; }
}
@media (min-width: 64rem) {
  .hero { grid-template-columns: 1fr 1fr; gap: 3.75rem; align-items: center; padding-block: 4.5rem 5.5rem; }
  .hero-copy { align-self: center; }
  .timeline { padding: 1.125rem 1.25rem; }
  .split-section { grid-template-columns: 1fr 1fr; gap: 6rem; align-items: center; }
  .clients { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .final-cta { padding-block: 5.5rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }