:root {
  --canvas: #e8eef3;
  --canvas-deep: #dce5ec;
  --porcelain: #fbfaf6;
  --white: #ffffff;
  --ink: #202738;
  --muted: #697485;
  --line: rgba(32, 39, 56, 0.11);
  --blue: #4e69e8;
  --blue-soft: #e8ecff;
  --sage: #86a58f;
  --sage-soft: #e4eee7;
  --terracotta: #cb6040;
  --terracotta-soft: #f6dfd6;
  --letter: #29324d;
  --lime: #dff46a;
  --shadow: 0 22px 55px rgba(43, 58, 80, 0.14);
  --shadow-soft: 0 12px 30px rgba(43, 58, 80, 0.1);
  --radius-xl: 36px;
  --radius-lg: 26px;
  --radius-md: 18px;
  --page: min(1240px, calc(100vw - 64px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(78,105,232,.45); outline-offset: 3px; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon {
  display: block;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.section-shell { width: var(--page); margin-inline: auto; }

.site-header {
  width: var(--page);
  height: 78px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 20;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 24px; font-weight: 760; letter-spacing: -0.05em; }
.brand img { width: 32px; height: 28px; }
.site-header nav { display: flex; align-items: center; gap: 10px; }
.site-header nav a { padding: 11px 16px; border-radius: 999px; font-size: 14px; font-weight: 650; }
.site-header nav a:not(.nav-cta):hover { background: rgba(255,255,255,.56); }
.site-header .nav-cta { color: #fff; background: var(--ink); padding-inline: 21px; }
.menu-button { display: none; }

.hero {
  min-height: calc(100vh - 78px);
  max-height: 880px;
  display: grid;
  grid-template-columns: minmax(0, 39fr) minmax(0, 61fr);
  align-items: center;
  gap: 42px;
  padding: 34px 0 58px;
}
.hero-copy { position: relative; z-index: 3; }
.hero h1 {
  margin: 0;
  max-width: 570px;
  font-size: clamp(46px, 3.45vw, 52px);
  line-height: .98;
  letter-spacing: -.065em;
  font-weight: 780;
}
.hero-copy > p {
  margin: 24px 0 25px;
  max-width: 470px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.45;
  letter-spacing: -.02em;
}
.intent-form {
  width: min(500px, 100%);
  min-height: 122px;
  padding: 14px;
  display: grid;
  grid-template-columns: 38px 1fr;
  grid-template-rows: 1fr 45px;
  column-gap: 9px;
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(255,255,255,.75);
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
}
.intent-icon { width: 38px; height: 38px; display: grid; place-items: center; color: var(--blue); }
.intent-icon .icon { width: 22px; height: 22px; }
.intent-form textarea {
  padding: 8px 7px 6px 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  outline: 0;
  overflow: hidden;
  resize: none;
  font-size: 15px;
  line-height: 1.35;
  font-weight: 620;
}
.intent-form button {
  grid-column: 1 / -1;
  border: 0;
  border-radius: 14px;
  color: #fff;
  background: var(--ink);
  cursor: pointer;
  font-weight: 720;
  transition: transform .2s ease, background .2s ease;
}
.intent-form button:hover { background: var(--blue); transform: translateY(-1px); }
.hero-note { margin-top: 13px; display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 12px; font-weight: 580; }
.hero-note .icon { width: 17px; height: 17px; color: var(--sage); }

.product-stage {
  position: relative;
  width: 100%;
  height: 590px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 46px;
  background: rgba(248,250,248,.67);
  box-shadow: inset 0 1px rgba(255,255,255,.95), 0 35px 80px rgba(46,61,83,.12);
  isolation: isolate;
}
.product-stage::before,
.product-stage::after {
  content: "";
  position: absolute;
  border-radius: 32px;
  background: rgba(210,221,230,.54);
  z-index: -1;
}
.product-stage::before { width: 235px; height: 235px; top: -60px; left: 190px; transform: rotate(8deg); }
.product-stage::after { width: 255px; height: 240px; right: -56px; bottom: -54px; transform: rotate(-7deg); }
.demo-tabs { position: absolute; left: 23px; top: 20px; z-index: 8; padding: 4px; display: flex; gap: 3px; border-radius: 999px; background: rgba(255,255,255,.72); box-shadow: 0 8px 20px rgba(43,58,80,.08); }
.demo-tabs button { min-height: 31px; padding: 0 12px; color: var(--muted); border: 0; border-radius: 999px; background: transparent; cursor: pointer; font-size: 10px; font-weight: 720; }
.demo-tabs button[aria-pressed="true"] { color: #fff; background: var(--ink); }
.demo-control { position: absolute; right: 23px; top: 23px; z-index: 8; min-height: 31px; padding: 0 12px; color: var(--muted); border: 1px solid rgba(255,255,255,.9); border-radius: 999px; background: rgba(255,255,255,.72); box-shadow: 0 8px 20px rgba(43,58,80,.08); cursor: pointer; font-size: 9px; font-weight: 720; }
.demo-brief { position: absolute; left: 23px; right: 23px; top: 66px; z-index: 7; min-height: 65px; padding: 12px 15px; display: grid; grid-template-columns: 28px 1fr 8px; align-items: center; gap: 9px; border: 1px solid rgba(255,255,255,.9); border-radius: 18px; background: rgba(255,255,255,.86); box-shadow: var(--shadow-soft); }
.demo-brief > span { width: 28px; height: 28px; display: grid; place-items: center; color: #fff; border-radius: 10px; background: var(--blue); font-size: 9px; font-weight: 800; text-transform: uppercase; }
.demo-brief p { margin: 0; font-size: 11px; line-height: 1.4; font-weight: 660; }
.demo-brief i { width: 2px; height: 15px; background: var(--blue); animation: caret 1s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }
.stage-threads { position: absolute; inset: 0; z-index: 2; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.stage-threads path { fill: none; stroke-width: 2.2; stroke-linecap: round; stroke-dasharray: 7 7; opacity: .72; vector-effect: non-scaling-stroke; }
.thread-blue { stroke: var(--blue); }
.thread-sage { stroke: var(--sage); }
.thread-clay { stroke: var(--terracotta); }
.source-stack { position: absolute; left: 24px; top: 160px; width: 158px; display: grid; gap: 13px; z-index: 5; }
.source-pill {
  min-height: 78px;
  padding: 12px;
  display: grid;
  grid-template-columns: 43px 1fr;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(255,255,255,.92);
  border-radius: 20px;
  background: rgba(255,255,255,.88);
  box-shadow: var(--shadow-soft);
}
.source-pill .icon-well { width: 43px; height: 43px; display: grid; place-items: center; border-radius: 15px; }
.source-pill .icon-well .icon { width: 21px; height: 21px; }
.source-pill-blue .icon-well { color: #fff; background: var(--blue); }
.source-pill-sage .icon-well { color: #fff; background: var(--sage); }
.source-pill-clay .icon-well { color: #fff; background: var(--terracotta); }
.source-pill b, .source-pill small { display: block; }
.source-pill b { font-size: 13px; line-height: 1.2; }
.source-pill small { margin-top: 4px; color: var(--muted); font-size: 10px; line-height: 1.25; }
.stage-person {
  position: absolute;
  left: 198px;
  top: 163px;
  width: 184px;
  overflow: hidden;
  border: 8px solid rgba(255,255,255,.9);
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow);
  z-index: 3;
}
.stage-person img { width: 100%; height: auto; aspect-ratio: 1 / 1.02; object-fit: cover; }
.stage-person div { padding: 13px 14px 14px; }
.stage-person b, .stage-person span { display: block; }
.stage-person b { font-size: 17px; letter-spacing: -.03em; }
.stage-person span { margin-top: 4px; color: var(--blue); font-size: 11px; font-weight: 650; }
.stage-why {
  position: absolute;
  left: 190px;
  top: 410px;
  width: 220px;
  min-height: 112px;
  padding: 17px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #fff;
  border-radius: 24px;
  background: var(--terracotta);
  box-shadow: var(--shadow);
  z-index: 4;
}
.why-icon { width: 39px; height: 39px; display: grid; place-items: center; flex: 0 0 39px; color: var(--terracotta); border-radius: 50%; background: #fff; }
.why-icon .icon { width: 21px; height: 21px; }
.stage-why b, .stage-why strong { display: block; }
.stage-why b { margin: 3px 0 8px; font-size: 11px; letter-spacing: .09em; text-transform: uppercase; }
.stage-why strong { font-size: 15px; line-height: 1.32; }
.stage-letter {
  position: absolute;
  right: 27px;
  top: 151px;
  width: 300px;
  min-height: 408px;
  padding: 25px 25px 20px;
  color: rgba(255,255,255,.86);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 30px;
  background: var(--letter);
  box-shadow: 0 28px 55px rgba(30,38,60,.3);
  z-index: 5;
}
.stage-letter header, .workspace-letter header { display: flex; align-items: center; gap: 11px; }
.stage-letter header span, .workspace-letter header > span { width: 42px; height: 42px; display: grid; place-items: center; color: var(--letter); border-radius: 14px; background: var(--lime); }
.stage-letter header .icon, .workspace-letter header .icon { width: 21px; height: 21px; }
.stage-letter header b { color: #fff; font-size: 18px; }
.stage-letter p { margin: 22px 0 0; font-family: Georgia, "Times New Roman", serif; font-size: 17px; line-height: 1.55; }
.stage-letter mark { padding: 0 3px; color: #fff; background: transparent; border-bottom: 2px solid currentColor; }
.stage-letter .cited-line { position: relative; display: inline; color: #fff; }
.stage-letter .cited-line::before { content: ""; position: absolute; left: -14px; top: .65em; width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 3px rgba(255,255,255,.08); }
.stage-letter .source-blue mark { border-color: var(--blue); }
.stage-letter .source-sage mark { border-color: var(--sage); }
.stage-letter .source-blue::before { background: var(--blue); }
.stage-letter .source-sage::before { background: var(--sage); }
.stage-letter footer {
  margin-top: 20px;
  padding-top: 16px;
  display: flex;
  align-items: center;
  gap: 7px;
  color: #bdc7d7;
  border-top: 1px solid rgba(255,255,255,.12);
  font-size: 10px;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 600;
}
.stage-letter footer > span { display: flex; align-items: center; gap: 6px; }
.stage-letter footer i { font-style: normal; }
.stage-letter footer > b { margin-left: auto; color: var(--lime); font-size: 9px; }
.stage-letter footer .icon { width: 17px; height: 17px; color: var(--lime); }

.product-stage.is-animating [data-stage-piece] { animation: piece-in .55s both; }
.product-stage.is-animating [data-stage-piece]:nth-child(2) { animation-delay: .1s; }
.product-stage.is-animating [data-stage-piece]:nth-child(3) { animation-delay: .2s; }
.product-stage.is-animating [data-stage-piece]:nth-child(4) { animation-delay: .3s; }
.product-stage.is-animating [data-stage-person] { animation: person-in .55s .45s both; }
.product-stage.is-animating [data-stage-why] { animation: why-in .5s .7s both; }
.product-stage.is-animating [data-stage-letter] { animation: letter-in .65s .95s both; }
.product-stage.is-animating .stage-threads path { animation: thread-draw .7s 1.35s both; }
.product-stage.is-paused *, .product-stage.is-paused *::before, .product-stage.is-paused *::after { animation-play-state: paused !important; }
@keyframes piece-in { from { opacity: 0; transform: translateX(-20px); } to { opacity: 1; transform: none; } }
@keyframes person-in { from { opacity: 0; transform: translateY(15px) scale(.97); } to { opacity: 1; transform: none; } }
@keyframes why-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes letter-in { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; transform: none; } }
@keyframes thread-draw { from { stroke-dashoffset: 80; opacity: 0; } to { stroke-dashoffset: 0; opacity: .72; } }

.workspace-section { padding: 112px 0 90px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 35px; }
.section-heading p { max-width: 250px; margin: 0 0 7px; color: var(--muted); font-size: 15px; line-height: 1.5; }
.section-heading h2 { order: -1; margin: 0; font-size: clamp(42px, 4.2vw, 64px); line-height: 1; letter-spacing: -.055em; }
.goal-tabs {
  width: fit-content;
  max-width: 100%;
  margin: 0 0 22px auto;
  padding: 5px;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  border: 1px solid rgba(255,255,255,.75);
  border-radius: 999px;
  background: rgba(255,255,255,.56);
}
.goal-tabs button {
  min-height: 42px;
  padding: 0 15px;
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  border: 0;
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 670;
}
.goal-tabs .icon { width: 18px; height: 18px; }
.goal-tabs button[aria-selected="true"] { color: #fff; background: var(--ink); }
.workspace-frame {
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.92);
  border-radius: 36px;
  background: rgba(248,250,248,.78);
  box-shadow: var(--shadow);
}
.workspace-bar { min-height: 68px; padding: 12px 18px 12px 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); }
.workspace-intent { display: flex; align-items: center; gap: 11px; font-size: 14px; font-weight: 620; }
.workspace-intent .icon { width: 19px; height: 19px; color: var(--blue); }
.replay-button { min-height: 40px; padding: 0 14px; display: flex; align-items: center; gap: 7px; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; background: #fff; cursor: pointer; font-size: 12px; font-weight: 650; }
.replay-button .icon { width: 16px; height: 16px; }
.workspace-body {
  position: relative;
  min-height: 630px;
  padding: 24px;
  display: grid;
  grid-template-columns: 214px minmax(360px, 1fr) 208px 224px;
  gap: 18px;
  align-items: stretch;
}
.workspace-threads { position: absolute; inset: 24px; z-index: 5; width: calc(100% - 48px); height: calc(100% - 48px); overflow: visible; pointer-events: none; }
.workspace-threads path { fill: none; stroke: #9aa5b5; stroke-width: 1.8; stroke-linecap: round; stroke-dasharray: 5 6; opacity: .22; vector-effect: non-scaling-stroke; transition: opacity .2s ease, stroke .2s ease, stroke-width .2s ease; }
.workspace-threads path[data-thread="website"] { stroke: var(--blue); }
.workspace-threads path[data-thread="reviews"] { stroke: var(--sage); }
.workspace-threads path[data-thread="news"] { stroke: var(--terracotta); }
.workspace-threads path.is-active { opacity: .9; stroke-width: 2.4; }
.workspace-body > :not(.workspace-threads) { position: relative; z-index: 2; }
.evidence-rail { grid-column: 1; grid-row: 1; display: grid; grid-template-rows: auto repeat(4, 1fr); gap: 10px; }
.evidence-rail h3 { margin: 0 0 2px 2px; font-size: 12px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.evidence-card {
  width: 100%;
  min-height: 90px;
  padding: 11px;
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: 10px;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 18px;
  background: rgba(255,255,255,.72);
  cursor: pointer;
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}
.evidence-card:hover { transform: translateY(-1px); background: #fff; }
.evidence-card.is-selected { border-color: rgba(78,105,232,.4); background: #fff; box-shadow: 0 9px 20px rgba(45,61,83,.08); }
.evidence-card[data-source="reviews"].is-selected { border-color: rgba(134,165,143,.72); }
.evidence-card[data-source="news"].is-selected { border-color: rgba(203,96,64,.62); }
.evidence-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 14px; }
.evidence-icon .icon { width: 21px; height: 21px; }
.evidence-icon.blue { color: #fff; background: var(--blue); }
.evidence-icon.sage { color: #fff; background: var(--sage); }
.evidence-icon.clay { color: #fff; background: var(--terracotta); }
.evidence-card b, .evidence-card small { display: block; }
.evidence-card b { font-size: 13px; }
.evidence-card small { margin-top: 5px; color: var(--muted); font-size: 10px; line-height: 1.3; }
.person-column { grid-column: 3; grid-row: 1; display: grid; grid-template-rows: auto 1fr; gap: 16px; }
.workspace-person { overflow: hidden; border-radius: 24px; background: #fff; box-shadow: var(--shadow-soft); }
.workspace-person img { width: 100%; height: auto; aspect-ratio: 1.2 / 1; object-fit: cover; }
.workspace-person > div:not(.person-tags) { padding: 15px 16px 4px; }
.workspace-person b, .workspace-person span { display: block; }
.workspace-person b { font-size: 19px; letter-spacing: -.03em; }
.workspace-person > div > span { margin-top: 4px; color: var(--blue); font-size: 11px; font-weight: 650; }
.person-tags { padding: 9px 16px 17px; display: flex; flex-wrap: wrap; gap: 6px; }
.person-tags span { padding: 6px 8px; color: var(--muted); border-radius: 999px; background: var(--canvas); font-size: 9px; font-weight: 700; }
.workspace-read { min-height: 228px; padding: 16px; color: #fff; border-radius: 22px; background: var(--terracotta); box-shadow: var(--shadow-soft); }
.workspace-read header { display: flex; align-items: center; gap: 10px; }
.workspace-read header .why-icon { width: 34px; height: 34px; flex-basis: 34px; }
.workspace-read header .why-icon .icon { width: 18px; height: 18px; }
.workspace-read header b { font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.read-item { margin-top: 13px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.22); }
.read-item small, .read-item strong { display: block; }
.read-item small { margin-bottom: 5px; color: rgba(255,255,255,.7); font-size: 9px; font-weight: 760; letter-spacing: .07em; text-transform: uppercase; }
.read-item strong { font-size: 12px; line-height: 1.38; }
.workspace-letter {
  grid-column: 2;
  grid-row: 1;
  min-height: 520px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  color: #d7dce6;
  border-radius: 26px;
  background: var(--letter);
  box-shadow: 0 20px 40px rgba(30,38,60,.23);
}
.workspace-letter header div b, .workspace-letter header div small { display: block; }
.workspace-letter header b { color: #fff; font-size: 18px; }
.workspace-letter header small { margin-top: 3px; color: #aeb7c8; font-size: 10px; }
.workspace-letter [data-letter-copy] { margin-top: 20px; }
.workspace-letter p { margin: 0 0 22px; font-family: Georgia, "Times New Roman", serif; font-size: 17px; line-height: 1.55; }
.workspace-letter .claim { display: inline; padding: 0 2px; color: #fff; border: 0; border-bottom: 2px solid #7e8dad; background: transparent; cursor: pointer; font: inherit; }
.workspace-letter .claim.is-selected[data-source="website"] { border-color: var(--blue); background: rgba(78,105,232,.14); }
.workspace-letter .claim.is-selected[data-source="reviews"] { border-color: var(--sage); background: rgba(134,165,143,.15); }
.workspace-letter .claim.is-selected[data-source="news"] { border-color: var(--terracotta); background: rgba(203,96,64,.15); }
.workspace-letter footer { margin-top: auto; padding-top: 16px; display: flex; align-items: center; gap: 8px; color: #aeb7c8; border-top: 1px solid rgba(255,255,255,.12); font-size: 10px; }
.workspace-letter footer .icon { width: 17px; height: 17px; color: var(--lime); }
.source-detail { grid-column: 4; grid-row: 1; padding: 19px; align-self: end; display: flex; gap: 12px; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: var(--shadow-soft); }
.source-detail > div { min-width: 0; }
.source-detail b, .source-detail strong, .source-detail span, .source-detail small { display: block; }
.source-detail b { color: var(--blue); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.source-detail.tone-sage b { color: var(--sage); }
.source-detail.tone-clay b { color: var(--terracotta); }
.source-detail strong { margin: 8px 0; font-size: 13px; line-height: 1.35; }
.source-detail span { color: var(--muted); font-size: 10px; }
.source-detail small { margin-top: 14px; padding-top: 12px; color: var(--muted); border-top: 1px solid var(--line); font-size: 10px; line-height: 1.4; }
.source-detail em { color: var(--ink); font-style: normal; font-weight: 700; }
.workspace-body.is-replaying .evidence-card { animation: replay-card .5s both; }
.workspace-body.is-replaying .evidence-card:nth-of-type(2) { animation-delay: .08s; }
.workspace-body.is-replaying .evidence-card:nth-of-type(3) { animation-delay: .16s; }
.workspace-body.is-replaying .evidence-card:nth-of-type(4) { animation-delay: .24s; }
.workspace-body.is-replaying .workspace-letter { animation: letter-in .6s .35s both; }
@keyframes replay-card { from { opacity: .2; transform: translateX(-10px); } to { opacity: 1; transform: none; } }

.proof-section { padding: 118px 0 52px; scroll-margin-top: 28px; }
.proof-heading { margin-bottom: 42px; align-items: center; }
.proof-heading > div { max-width: 720px; }
.proof-heading h2 { order: 0; }
.proof-heading p { max-width: 520px; margin: 20px 0 0; font-size: 18px; }
.proof-heading > span { color: var(--muted); font-size: 15px; line-height: 1.5; text-align: right; }
.campaign-stage {
  position: relative;
  min-height: 720px;
  padding: 34px;
  display: grid;
  grid-template-columns: minmax(205px, .8fr) minmax(390px, 1.28fr) minmax(235px, .82fr);
  gap: 30px;
  overflow: hidden;
  color: #fff;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 36px;
  background:
    radial-gradient(circle at 48% 40%, rgba(78,105,232,.15), transparent 34%),
    radial-gradient(circle at 7% 95%, rgba(134,165,143,.12), transparent 26%),
    var(--letter);
  box-shadow: 0 26px 70px rgba(31,40,62,.22);
}
.campaign-stage::before, .campaign-stage::after { content: ""; position: absolute; pointer-events: none; opacity: .55; }
.campaign-stage::before { left: 18%; width: 18%; top: 52%; height: 1px; background: linear-gradient(90deg, rgba(255,255,255,.5), rgba(255,255,255,.12)); }
.campaign-stage::after { left: 18%; top: calc(52% - 4px); width: 9px; height: 9px; border: 2px solid #9da8ba; border-radius: 50%; }
.campaign-stage > * { position: relative; z-index: 1; min-width: 0; }
.stage-kicker { margin: 0 0 13px; color: #aeb7c8; font-size: 11px; font-weight: 750; letter-spacing: .11em; text-transform: uppercase; }
.matched-panel, .campaign-sequence { padding: 14px 0; align-self: center; }
.matched-panel h3 { margin: 0; font-size: 31px; line-height: 1; letter-spacing: -.04em; }
.match-context { margin: 9px 0 0; color: #aeb7c8; font-size: 11px; }
.prospect-cloud { margin-top: 33px; display: grid; grid-template-columns: repeat(4, 47px); gap: 12px; }
.prospect-sample, .prospect-cloud > span { width: 47px; height: 47px; border: 2px solid rgba(255,255,255,.5); border-radius: 50%; }
.prospect-sample { position: relative; padding: 0; overflow: hidden; background: transparent; cursor: pointer; transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease, opacity .2s ease; }
.prospect-sample img { width: 100%; height: 100%; object-fit: cover; }
.prospect-sample:hover { border-color: #fff; transform: translateY(-2px); }
.prospect-sample.is-selected { z-index: 1; border-color: var(--lime); box-shadow: 0 0 0 4px rgba(223,244,106,.17), 0 9px 22px rgba(7,12,25,.32); transform: scale(1.08); }
.prospect-sample:not(.is-selected) { opacity: .76; }
.prospect-cloud > span { display: grid; place-items: center; color: #e3e8f0; border-color: rgba(255,255,255,.08); background: rgba(255,255,255,.1); font-size: 9px; font-weight: 700; letter-spacing: -.02em; }
.sample-preview-control { margin-top: 22px; display: flex; align-items: center; gap: 9px; }
.sample-preview-control button { min-height: 34px; padding: 0 13px; color: #fff; border: 1px solid rgba(255,255,255,.16); border-radius: 999px; background: rgba(255,255,255,.08); cursor: pointer; font-size: 10px; font-weight: 740; }
.sample-preview-control button:hover { background: rgba(255,255,255,.14); }
.sample-preview-control span { color: #aeb7c8; font-size: 10px; }
.stage-note { margin: 22px 0 0; display: flex; align-items: flex-start; gap: 8px; color: #aeb7c8; font-size: 11px; line-height: 1.4; }
.stage-note .icon { width: 16px; height: 16px; color: var(--lime); }
.review-letter { min-height: 650px; padding: 25px; align-self: center; display: flex; flex-direction: column; border: 1px solid rgba(255,255,255,.12); border-radius: 27px; background: linear-gradient(145deg, rgba(255,255,255,.06), rgba(255,255,255,.025)); box-shadow: 0 18px 38px rgba(11,17,31,.22); }
.review-letter header { display: flex; align-items: center; gap: 12px; }
.review-letter header > .review-letter-icon { width: 44px; height: 44px; display: grid; place-items: center; color: var(--letter); border-radius: 14px; background: var(--lime); }
.review-letter header .icon { width: 21px; height: 21px; }
.review-letter header img { width: 37px; height: 37px; margin-left: -4px; object-fit: cover; border: 2px solid rgba(255,255,255,.65); border-radius: 50%; }
.review-letter header > div { min-width: 0; }
.review-letter header b, .review-letter header small { display: block; }
.review-letter header b { font-size: 16px; }
.review-letter header small { margin-top: 3px; overflow: hidden; color: #aeb7c8; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.review-letter header em { margin-left: auto; color: #aeb7c8; font-size: 10px; font-style: normal; font-weight: 700; }
.campaign-research { margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
.campaign-research > span { min-width: 0; padding: 9px 8px; display: grid; grid-template-columns: 27px 1fr; align-items: center; gap: 7px; border: 1px solid rgba(255,255,255,.1); border-radius: 13px; background: rgba(255,255,255,.045); }
.campaign-research i { width: 27px; height: 27px; display: grid; place-items: center; color: #fff; border-radius: 9px; font-style: normal; }
.campaign-research i.blue { background: var(--blue); }
.campaign-research i.sage { background: var(--sage); }
.campaign-research i.clay { background: var(--terracotta); }
.campaign-research .icon { width: 14px; height: 14px; }
.campaign-research b, .campaign-research b > span, .campaign-research small { min-width: 0; display: block; }
.campaign-research b > span { overflow: hidden; font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.campaign-research small { margin-top: 3px; color: #aeb7c8; font-size: 9px; line-height: 1.25; }
.campaign-logic { margin-top: 10px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.campaign-logic > span { min-height: 78px; padding: 11px; display: block; border-radius: 14px; background: rgba(203,96,64,.18); border: 1px solid rgba(203,96,64,.35); }
.campaign-logic > span + span { background: rgba(78,105,232,.16); border-color: rgba(111,136,255,.35); }
.campaign-logic small, .campaign-logic strong { display: block; }
.campaign-logic small { margin-bottom: 6px; color: #d3a495; font-size: 9px; font-weight: 780; letter-spacing: .08em; text-transform: uppercase; }
.campaign-logic > span + span small { color: #9cadff; }
.campaign-logic strong { color: #f4f6fa; font-size: 11px; line-height: 1.34; }
.message-label { margin: 14px 0 0; color: var(--lime); font-size: 9px; font-weight: 780; letter-spacing: .11em; text-transform: uppercase; }
.review-letter-copy { margin: 8px 0 5px; }
.review-letter-copy p { margin: 0 0 12px; font-family: Georgia, "Times New Roman", serif; font-size: 16px; line-height: 1.43; }
.review-letter-copy mark { padding: 0 1px; color: #fff; background: transparent; border-bottom: 2px solid; }
.review-letter-copy .blue-mark { border-color: #6f88ff; }
.review-letter-copy .sage-mark { border-color: #a6c3ac; }
.approve-sample { width: 100%; min-height: 44px; margin-top: auto; display: flex; align-items: center; justify-content: center; gap: 8px; color: var(--letter); border: 1px solid var(--lime); border-radius: 13px; background: var(--lime); cursor: pointer; font-size: 13px; font-weight: 760; transition: background .2s ease, color .2s ease; }
.approve-sample[aria-pressed="false"] { color: #fff; background: rgba(255,255,255,.06); }
.approve-sample .icon { width: 17px; height: 17px; }
.campaign-sequence ol { position: relative; margin: 23px 0 0; padding: 0; display: grid; gap: 27px; list-style: none; }
.campaign-sequence ol::before { content: ""; position: absolute; left: 21px; top: 41px; bottom: 41px; border-left: 1px dashed rgba(255,255,255,.35); }
.campaign-sequence li { position: relative; display: grid; grid-template-columns: 44px 1fr; align-items: center; gap: 13px; }
.campaign-sequence li > i { position: relative; z-index: 1; width: 44px; height: 44px; display: grid; place-items: center; color: var(--letter); border-radius: 50%; background: #fff; font-style: normal; }
.campaign-sequence li.is-current > i { color: #fff; background: var(--blue); }
.campaign-sequence li.is-reply > i { background: var(--lime); }
.campaign-sequence li .icon { width: 19px; height: 19px; }
.campaign-sequence li b, .campaign-sequence li small { display: block; }
.campaign-sequence li b { font-size: 14px; }
.campaign-sequence li small { margin-top: 4px; color: #aeb7c8; font-size: 10px; line-height: 1.3; }
.campaign-ready { min-height: 52px; margin-top: 30px; padding: 0 14px; display: flex; align-items: center; justify-content: center; gap: 9px; color: #e6ebf2; border-radius: 15px; background: rgba(255,255,255,.08); font-size: 11px; font-weight: 700; text-align: center; }
.campaign-ready .icon { width: 18px; height: 18px; }
.campaign-stage.is-pending .campaign-ready { color: #c1c9d7; }
.review-letter.is-switching .review-letter-copy,
.review-letter.is-switching .campaign-research,
.review-letter.is-switching .campaign-logic,
.review-letter.is-switching header img,
.review-letter.is-switching header > div { animation: campaign-letter-swap .46s both; }
.review-letter.is-switching .campaign-research { animation-delay: .05s; }
.review-letter.is-switching .campaign-logic { animation-delay: .1s; }
@keyframes campaign-letter-swap { from { opacity: .18; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.channels-section { padding: 90px 0 86px; }
.channels-heading { align-items: center; margin-bottom: 38px; }
.channels-heading > div { max-width: 760px; }
.channels-heading h2 { order: 0; }
.channels-heading p { max-width: 600px; margin-top: 18px; font-size: 17px; }
.channels-heading > span { color: var(--muted); font-size: 13px; line-height: 1.5; text-align: right; }
.action-stage { position: relative; min-height: 535px; padding: 42px; display: grid; grid-template-columns: minmax(340px,.82fr) minmax(500px,1.18fr); align-items: center; gap: 72px; overflow: hidden; border: 1px solid rgba(255,255,255,.9); border-radius: 36px; background: linear-gradient(145deg, rgba(255,255,255,.8), rgba(241,246,248,.58)); box-shadow: var(--shadow); }
.action-stage::before { content: ""; position: absolute; width: 310px; height: 310px; right: -90px; top: -120px; border-radius: 50%; background: rgba(78,105,232,.08); }
.action-stage > :not(.action-connectors) { position: relative; z-index: 2; min-width: 0; }
.action-connectors { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; pointer-events: none; }
.action-connectors path { fill: none; stroke: #aab3bf; stroke-width: 1.5; stroke-dasharray: 6 7; opacity: .55; vector-effect: non-scaling-stroke; }
.action-connectors path.is-current { stroke: var(--blue); stroke-width: 2.3; stroke-dasharray: 8 7; opacity: .9; animation: channel-flow 2.2s linear infinite; }
@keyframes channel-flow { to { stroke-dashoffset: -30; } }
.mosaic-action-source { min-height: 390px; padding: 25px; color: #fff; border-radius: 29px; background: var(--letter); box-shadow: 0 24px 50px rgba(30,38,60,.25); }
.mosaic-action-source header { display: grid; grid-template-columns: 55px 1fr auto; align-items: center; gap: 13px; }
.mosaic-action-source header img { width: 55px; height: 55px; object-fit: cover; border: 2px solid rgba(255,255,255,.7); border-radius: 18px; }
.mosaic-action-source header small, .mosaic-action-source header b, .mosaic-action-source header span { display: block; }
.mosaic-action-source header small { color: #aeb7c8; font-size: 9px; font-weight: 760; letter-spacing: .09em; text-transform: uppercase; }
.mosaic-action-source header b { margin-top: 4px; font-size: 18px; }
.mosaic-action-source header span { margin-top: 3px; color: #aeb7c8; font-size: 10px; }
.mosaic-action-source header em { align-self: start; padding: 6px 8px; color: var(--lime); border-radius: 999px; background: rgba(223,244,106,.1); font-size: 9px; font-style: normal; font-weight: 760; }
.mosaic-context-grid { margin-top: 27px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mosaic-context-grid > span { min-height: 78px; padding: 11px; display: grid; grid-template-columns: 34px 1fr; align-items: center; gap: 9px; border: 1px solid rgba(255,255,255,.1); border-radius: 16px; background: rgba(255,255,255,.05); }
.mosaic-context-grid i { width: 34px; height: 34px; display: grid; place-items: center; color: #fff; border-radius: 11px; font-style: normal; }
.mosaic-context-grid i.blue { background: var(--blue); }
.mosaic-context-grid i.sage { background: var(--sage); }
.mosaic-context-grid i.clay { background: var(--terracotta); }
.mosaic-context-grid i.dark { color: var(--ink); background: var(--lime); }
.mosaic-context-grid .icon { width: 17px; height: 17px; }
.mosaic-context-grid b, .mosaic-context-grid small { display: block; }
.mosaic-context-grid b { font-size: 11px; }
.mosaic-context-grid small { margin-top: 4px; color: #aeb7c8; font-size: 9px; font-weight: 520; line-height: 1.3; }
.mosaic-action-source > p { margin: 24px 0 0; color: #c3cad6; font-size: 12px; line-height: 1.5; }
.channel-stack { display: grid; gap: 11px; }
.channel-card { min-height: 103px; padding: 15px 17px; display: grid; grid-template-columns: 49px 1fr auto; align-items: center; gap: 14px; border-radius: 21px; }
.channel-icon { width: 49px; height: 49px; display: grid; place-items: center; border-radius: 16px; }
.channel-icon .icon { width: 23px; height: 23px; }
.channel-card div small, .channel-card div b, .channel-card div p { display: block; }
.channel-card div small { font-size: 9px; font-weight: 780; letter-spacing: .08em; text-transform: uppercase; }
.channel-card div b { margin-top: 4px; font-size: 18px; }
.channel-card div p { margin: 4px 0 0; font-size: 10px; line-height: 1.35; }
.channel-card > em { padding: 7px 9px; border-radius: 999px; font-size: 9px; font-style: normal; font-weight: 780; white-space: nowrap; }
.channel-card.is-current { color: #fff; border: 1px solid rgba(78,105,232,.12); background: var(--blue); box-shadow: 0 17px 36px rgba(78,105,232,.25); }
.channel-card.is-current .channel-icon { color: var(--blue); background: #fff; }
.channel-card.is-current div small { color: rgba(255,255,255,.7); }
.channel-card.is-current div p { color: rgba(255,255,255,.75); }
.channel-card.is-current > em { color: var(--ink); background: var(--lime); }
.channel-card.is-future { color: #6d7787; border: 1px dashed rgba(77,89,108,.22); background: rgba(255,255,255,.57); box-shadow: 0 8px 20px rgba(43,58,80,.045); }
.channel-card.is-future .channel-icon { color: #7d8795; border: 1px solid rgba(77,89,108,.12); background: rgba(226,231,235,.72); }
.channel-card.is-future div small { color: #8c95a2; }
.channel-card.is-future div b { color: #667080; }
.channel-card.is-future div p { color: #8a93a0; }
.channel-card.is-future > em { display: flex; align-items: center; gap: 5px; color: #7f8997; background: rgba(222,227,231,.72); }
.channel-card.is-future > em .icon { width: 12px; height: 12px; }

.control-section { padding: 76px 0 82px; background: linear-gradient(180deg, rgba(255,255,255,.46), rgba(255,255,255,.18)); }
.control-heading { display: block; margin-bottom: 36px; }
.control-heading h2 { order: 0; }
.control-heading p { max-width: none; margin-top: 15px; font-size: 17px; }
.mode-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.mode-card { position: relative; min-width: 0; min-height: 270px; padding: 26px; display: flex; flex-direction: column; align-items: flex-start; color: var(--ink); text-align: left; border: 1px solid rgba(255,255,255,.9); border-radius: 27px; background: rgba(255,255,255,.74); box-shadow: var(--shadow-soft); cursor: pointer; transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.mode-card:hover { transform: translateY(-3px); background: #fff; }
.mode-card[aria-selected="true"] { border-color: var(--blue); background: #fff; box-shadow: 0 18px 45px rgba(59,78,119,.14); }
.mode-icon { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 18px; }
.mode-icon.blue { color: var(--blue); background: var(--blue-soft); }
.mode-icon.cobalt { color: #fff; background: var(--blue); }
.mode-icon.sage { color: #fff; background: var(--sage); }
.mode-icon .icon { width: 23px; height: 23px; }
.mode-copy { margin-top: 22px; }
.mode-copy b, .mode-copy small { display: block; }
.mode-copy b { font-size: 22px; letter-spacing: -.025em; }
.mode-copy small { min-height: 42px; margin-top: 8px; color: var(--muted); font-size: 13px; line-height: 1.45; }
.mode-check { position: absolute; right: 18px; top: 18px; width: 29px; height: 29px; display: grid; place-items: center; color: #fff; border-radius: 50%; background: var(--blue); opacity: 0; transform: scale(.8); transition: opacity .2s ease, transform .2s ease; }
.mode-card[aria-selected="true"] .mode-check { opacity: 1; transform: scale(1); }
.mode-check .icon { width: 16px; height: 16px; }
.mode-list { width: 100%; margin-top: auto; padding-top: 17px; color: var(--muted); border-top: 1px solid var(--line); font-size: 11px; line-height: 1.55; }
.closing-form { position: relative; margin-top: 24px; padding: 20px; display: grid; grid-template-columns: minmax(310px, .9fr) minmax(440px, 1.1fr); align-items: center; gap: 25px; border: 1px solid rgba(255,255,255,.92); border-radius: 27px; background: rgba(255,255,255,.82); box-shadow: var(--shadow-soft); }
.mode-summary { min-width: 0; display: grid; grid-template-columns: 48px 1fr; align-items: center; gap: 13px; }
.launch-icon { width: 48px; height: 48px; display: grid; place-items: center; color: var(--blue); border-radius: 16px; background: var(--blue-soft); }
.launch-icon .icon { width: 23px; height: 23px; }
.mode-summary b, .mode-summary small { display: block; }
.mode-summary b { font-size: 14px; }
.mode-summary small { margin-top: 5px; color: var(--muted); font-size: 11px; line-height: 1.4; }
.closing-input { min-width: 0; padding: 6px 6px 6px 15px; display: grid; grid-template-columns: 24px 1fr auto; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 17px; background: #fff; }
.closing-input > span { color: var(--blue); }
.closing-input > span .icon { width: 18px; height: 18px; }
.closing-input input { min-width: 0; height: 43px; padding: 0 4px; border: 0; outline: 0; color: var(--ink); font-size: 12px; }
.closing-input button { min-height: 43px; padding: 0 17px; display: flex; align-items: center; gap: 8px; color: #fff; border: 0; border-radius: 12px; background: var(--ink); cursor: pointer; font-size: 11px; font-weight: 720; }
.closing-input button .icon { width: 16px; height: 16px; }
.closing-form > p { position: absolute; right: 21px; bottom: -20px; margin: 0; color: var(--muted); font-size: 10px; }
.closing-form.is-error .closing-input { outline: 2px solid var(--terracotta); }
.closing-form.is-success .closing-input { outline: 2px solid var(--sage); }
.closing-actions { min-width: 0; padding: 6px; display: grid; grid-template-columns: minmax(165px, auto) 1fr; align-items: center; gap: 14px; border: 1px solid var(--line); border-radius: 17px; background: #fff; }
.closing-actions p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.45; }
.closing-cta { min-height: 48px; padding: 0 19px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; color: #fff; border-radius: 12px; background: var(--ink); box-shadow: 0 10px 22px rgba(33,42,62,.18); font-size: 12px; font-weight: 760; transition: transform .2s ease, box-shadow .2s ease; }
.closing-cta:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(33,42,62,.23); }
.closing-cta:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }
.closing-cta .icon { width: 17px; height: 17px; }
.site-footer { width: var(--page); min-height: 105px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--muted); border-top: 1px solid var(--line); font-size: 11px; }
.site-footer .brand { color: var(--ink); }

@media (max-width: 1180px) {
  :root { --page: min(1050px, calc(100vw - 48px)); }
  .hero { grid-template-columns: minmax(0, 36fr) minmax(0, 64fr); gap: 28px; }
  .hero h1 { font-size: 46px; }
  .product-stage { height: 560px; }
  .source-stack { left: 18px; width: 140px; }
  .source-pill { grid-template-columns: 39px 1fr; padding: 9px; }
  .source-pill .icon-well { width: 39px; height: 39px; }
  .stage-person { left: 175px; width: 170px; }
  .stage-why { left: 160px; top: 410px; width: 205px; }
  .stage-letter { right: 20px; width: 270px; }
  .workspace-body { grid-template-columns: 190px minmax(300px, 1fr) 184px; }
  .evidence-rail { grid-column: 1; grid-row: 1 / 3; }
  .workspace-letter { grid-column: 2; grid-row: 1 / 3; }
  .person-column { grid-column: 3; grid-row: 1; }
  .source-detail { grid-column: 3; grid-row: 2; align-self: end; }
  .campaign-stage { grid-template-columns: minmax(185px, .72fr) minmax(360px, 1.28fr); }
  .campaign-stage::before, .campaign-stage::after { display: none; }
  .campaign-sequence { grid-column: 1 / -1; padding: 2px 0 0; display: grid; grid-template-columns: 86px 1fr 220px; align-items: center; gap: 18px; }
  .campaign-sequence .stage-kicker { margin: 0; }
  .campaign-sequence ol { margin: 0; grid-template-columns: repeat(4, 1fr); gap: 12px; }
  .campaign-sequence ol::before { left: 35px; right: 35px; top: 21px; bottom: auto; border: 0; border-top: 1px dashed rgba(255,255,255,.35); }
  .campaign-sequence li { grid-template-columns: 36px 1fr; gap: 8px; }
  .campaign-sequence li > i { width: 36px; height: 36px; }
  .campaign-sequence li .icon { width: 16px; height: 16px; }
  .campaign-ready { margin: 0; }
  .action-stage { padding: 32px; grid-template-columns: minmax(300px,.85fr) minmax(460px,1.15fr); gap: 42px; }
  .mosaic-action-source { padding: 22px; }
}

@media (max-width: 900px) {
  :root { --page: calc(100vw - 36px); }
  .site-header { height: 70px; }
  .hero { min-height: auto; max-height: none; padding: 42px 0 72px; display: block; }
  .hero-copy { max-width: 700px; text-align: center; margin-inline: auto; }
  .hero-copy h1, .hero-copy > p { margin-left: auto; margin-right: auto; }
  .intent-form { margin-inline: auto; text-align: left; }
  .hero-note { justify-content: center; }
  .product-stage { max-width: 700px; margin: 45px auto 0; }
  .workspace-body { grid-template-columns: 190px 1fr; }
  .evidence-rail { grid-row: 1; }
  .person-column { grid-column: 1; grid-row: 2; }
  .workspace-letter { grid-column: 2; grid-row: 1 / 3; }
  .source-detail { grid-column: 1 / 3; }
  .workspace-threads { display: none; }
  .section-heading { align-items: flex-start; }
  .proof-heading { align-items: center; }
  .proof-heading > span { font-size: 13px; }
  .campaign-stage { padding: 27px; gap: 24px; }
  .prospect-cloud { grid-template-columns: repeat(4, 43px); gap: 9px; }
  .prospect-sample, .prospect-cloud > span { width: 43px; height: 43px; }
  .review-letter { min-height: 650px; padding: 23px; }
  .campaign-sequence { display: block; }
  .campaign-sequence .stage-kicker { margin-bottom: 14px; }
  .campaign-ready { margin-top: 18px; }
  .channels-heading { display: block; }
  .channels-heading > span { display: block; margin-top: 13px; text-align: left; }
  .action-stage { min-height: 0; padding: 28px; grid-template-columns: 1fr; gap: 22px; }
  .action-connectors { display: none; }
  .mosaic-action-source { min-height: 0; }
  .channel-stack { grid-template-columns: 1fr 1fr; }
  .mode-cards { gap: 14px; }
  .mode-card { min-height: 250px; padding: 21px; }
  .mode-copy b { font-size: 19px; }
  .closing-form { grid-template-columns: 1fr; }
  .closing-form > p { left: 20px; right: auto; }
  .closing-actions { grid-template-columns: minmax(180px, auto) 1fr; }
}

@media (max-width: 640px) {
  :root { --page: calc(100vw - 28px); }
  .site-header { height: 62px; }
  .brand { font-size: 21px; }
  .brand img { width: 30px; height: 26px; }
  .menu-button { width: 42px; height: 42px; padding: 0; display: grid; place-content: center; gap: 4px; border: 0; border-radius: 50%; background: rgba(255,255,255,.7); }
  .menu-button > span { width: 17px; height: 1.5px; background: var(--ink); }
  .site-header nav { position: absolute; top: 56px; right: 0; width: 190px; padding: 9px; display: none; border-radius: 20px; background: #fff; box-shadow: var(--shadow); }
  .site-header nav.is-open { display: grid; }
  .site-header nav a { width: 100%; }

  .hero { padding: 16px 0 28px; }
  .hero h1 { font-size: clamp(37px, 11.5vw, 45px); line-height: 1.01; }
  .hero-copy > p { margin: 12px auto 14px; max-width: 340px; font-size: 14px; }
  .intent-form { min-height: 112px; padding: 10px; grid-template-rows: 1fr 45px; border-radius: 21px; }
  .intent-form textarea { max-height: 45px; font-size: 13px; }
  .hero-note { margin-top: 10px; font-size: 10px; }
  .product-stage {
    height: 400px;
    margin-top: 18px;
    border-radius: 29px;
  }
  .product-stage::before { width: 150px; height: 150px; top: -60px; left: 60px; }
  .product-stage::after { width: 150px; height: 150px; right: -70px; bottom: -60px; }
  .demo-tabs { left: 10px; top: 8px; padding: 3px; }
  .demo-tabs button { min-height: 29px; padding: 0 9px; font-size: 10px; }
  .demo-control { right: 10px; top: 10px; min-height: 29px; padding: 0 9px; font-size: 10px; }
  .demo-brief { left: 10px; right: 10px; top: 48px; min-height: 62px; padding: 8px 10px; grid-template-columns: 28px 1fr 5px; gap: 8px; border-radius: 14px; }
  .demo-brief > span { width: 28px; height: 28px; border-radius: 9px; font-size: 9px; }
  .demo-brief p { max-height: 45px; overflow: hidden; font-size: 12px; line-height: 1.25; }
  .demo-brief i { height: 12px; }
  .stage-threads { display: none; }
  .source-stack { left: 10px; top: 121px; width: 105px; display: flex; justify-content: flex-start; gap: 5px; }
  .source-pill { width: 31px; min-width: 31px; min-height: 43px; padding: 3px; display: flex; justify-content: center; border-radius: 13px; }
  .source-pill .icon-well { width: 35px; height: 35px; flex: 0 0 35px; border-radius: 12px; }
  .source-pill .icon-well .icon { width: 18px; height: 18px; }
  .source-pill > span:last-child { display: none; }
  .stage-person { left: 10px; top: 175px; width: 105px; border-width: 5px; border-radius: 19px; }
  .stage-person img { aspect-ratio: 1 / .78; }
  .stage-person div { padding: 7px 8px 9px; }
  .stage-person b { font-size: 12px; }
  .stage-person span { font-size: 9px; line-height: 1.25; }
  .stage-why { left: 10px; top: 294px; width: 105px; min-height: 94px; padding: 9px; display: block; border-radius: 16px; }
  .stage-why .why-icon { display: none; }
  .stage-why b { margin: 0 0 5px; font-size: 9px; }
  .stage-why strong { font-size: 12px; line-height: 1.22; }
  .stage-letter { right: 10px; top: 121px; width: calc(100% - 135px); min-height: 267px; padding: 14px; border-radius: 20px; }
  .stage-letter header { gap: 7px; }
  .stage-letter header span { width: 29px; height: 29px; border-radius: 10px; }
  .stage-letter header .icon { width: 16px; height: 16px; }
  .stage-letter header b { font-size: 13px; }
  .stage-letter p { margin-top: 10px; font-size: 12px; line-height: 1.35; }
  .stage-letter .cited-line::before { left: -9px; width: 5px; height: 5px; }
  .stage-letter footer { margin-top: 10px; padding-top: 9px; font-size: 9px; flex-wrap: wrap; }
  .stage-letter footer > b { width: 100%; margin: 3px 0 0; font-size: 9px; }
  .stage-letter footer .icon { width: 12px; height: 12px; }

  .workspace-section { padding: 76px 0 55px; }
  .section-heading { display: block; margin-bottom: 25px; }
  .section-heading h2 { font-size: 42px; }
  .section-heading p { display: none; }
  .goal-tabs { width: 100%; margin-bottom: 14px; }
  .goal-tabs { scrollbar-width: none; -webkit-mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 24px), transparent 100%); mask-image: linear-gradient(to right, #000 0, #000 calc(100% - 24px), transparent 100%); }
  .goal-tabs::-webkit-scrollbar { display: none; }
  .goal-tabs button { padding: 0 12px; }
  .workspace-frame { border-radius: 26px; }
  .workspace-bar { min-height: 58px; padding: 10px 12px 10px 16px; }
  .workspace-intent { min-width: 0; font-size: 10px; }
  .workspace-intent span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .replay-button { min-width: 40px; padding: 0; justify-content: center; }
  .replay-button .icon { width: 17px; height: 17px; }
  .replay-button { font-size: 0; }
  .workspace-body { min-height: 0; padding: 12px; display: block; }
  .evidence-rail { display: grid; grid-template-columns: repeat(4, 1fr); grid-template-rows: auto auto; grid-auto-rows: auto; gap: 6px; }
  .evidence-rail h3 { grid-column: 1 / -1; }
  .evidence-card { min-height: 61px; padding: 6px; display: grid; grid-template-columns: 1fr; place-items: center; gap: 4px; text-align: center; border-radius: 14px; }
  .evidence-icon { width: 32px; height: 32px; border-radius: 10px; }
  .evidence-icon .icon { width: 17px; height: 17px; }
  .evidence-card b { font-size: 10px; line-height: 1.1; }
  .evidence-card small { display: none; }
  .person-column { margin-top: 10px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .workspace-person { min-height: 166px; border-radius: 18px; }
  .workspace-person img { aspect-ratio: 1.55 / 1; }
  .workspace-person > div:not(.person-tags) { padding: 9px 10px 2px; }
  .workspace-person b { font-size: 14px; }
  .workspace-person > div > span { font-size: 10px; }
  .person-tags { padding: 7px 10px 10px; }
  .person-tags span { font-size: 9px; padding: 4px 6px; }
  .workspace-read { min-height: 166px; padding: 11px; border-radius: 18px; }
  .workspace-read header { gap: 7px; }
  .workspace-read header .why-icon { width: 28px; height: 28px; flex-basis: 28px; }
  .workspace-read header .why-icon .icon { width: 15px; height: 15px; }
  .workspace-read header b { font-size: 9px; }
  .read-item { margin-top: 9px; padding-top: 8px; }
  .read-item small { margin-bottom: 3px; font-size: 9px; }
  .read-item strong { font-size: 10px; line-height: 1.3; }
  .workspace-letter { min-height: 365px; margin-top: 10px; padding: 20px; border-radius: 20px; }
  .workspace-letter p { margin-bottom: 17px; font-size: 15px; }
  .source-detail { margin-top: 10px; padding: 14px; }

  .proof-section { padding: 78px 0 28px; scroll-margin-top: 10px; }
  .proof-heading { display: block; margin-bottom: 25px; }
  .proof-heading h2 { font-size: 46px; }
  .proof-heading p { display: block; margin-top: 14px; max-width: 345px; font-size: 15px; }
  .proof-heading > span { display: none; }
  .campaign-stage { min-height: 0; padding: 20px; display: block; border-radius: 27px; }
  .campaign-stage::before, .campaign-stage::after { display: none; }
  .matched-panel { padding: 2px 0 23px; }
  .matched-panel h3 { font-size: 27px; }
  .match-context { margin-top: 7px; }
  .prospect-cloud { margin-top: 20px; display: grid; grid-template-columns: repeat(4, 44px); gap: 9px; }
  .prospect-sample, .prospect-cloud > span { width: 44px; height: 44px; }
  .prospect-cloud > span { font-size: 9px; }
  .sample-preview-control { margin-top: 16px; }
  .sample-preview-control button { min-height: 44px; padding: 0 15px; }
  .stage-note { max-width: 270px; margin-top: 17px; }
  .review-letter { min-height: 0; padding: 20px; border-radius: 21px; }
  .review-letter header > .review-letter-icon { width: 40px; height: 40px; border-radius: 13px; }
  .review-letter header img { width: 34px; height: 34px; }
  .review-letter header b { font-size: 14px; }
  .campaign-research { grid-template-columns: 1fr; gap: 6px; }
  .campaign-research > span { min-height: 52px; padding: 8px; grid-template-columns: 30px 1fr; }
  .campaign-research i { width: 30px; height: 30px; }
  .campaign-research b > span { font-size: 10px; }
  .campaign-research small { font-size: 9px; }
  .campaign-logic { grid-template-columns: 1fr; }
  .campaign-logic > span { min-height: 0; }
  .campaign-logic strong { font-size: 11px; }
  .review-letter-copy p { margin-bottom: 13px; font-size: 15px; }
  .approve-sample { min-height: 46px; }
  .campaign-sequence { margin-top: 27px; padding: 0; display: block; }
  .campaign-sequence .stage-kicker { margin-bottom: 16px; }
  .campaign-sequence ol { margin: 0; display: grid; grid-template-columns: 1fr; gap: 15px; }
  .campaign-sequence ol::before { left: 19px; right: auto; top: 34px; bottom: 34px; border: 0; border-left: 1px dashed rgba(255,255,255,.35); }
  .campaign-sequence li { grid-template-columns: 40px 1fr; gap: 12px; }
  .campaign-sequence li > i { width: 40px; height: 40px; }
  .campaign-sequence li b { font-size: 13px; }
  .campaign-sequence li small { font-size: 10px; }
  .campaign-ready { min-height: 48px; margin-top: 20px; }

  .channels-section { padding: 64px 0 62px; }
  .channels-heading { margin-bottom: 25px; }
  .channels-heading h2 { font-size: 42px; }
  .channels-heading p { display: block; margin-top: 14px; font-size: 15px; }
  .channels-heading > span { display: none; }
  .action-stage { padding: 16px; border-radius: 27px; }
  .mosaic-action-source { padding: 18px; border-radius: 23px; }
  .mosaic-action-source header { grid-template-columns: 48px 1fr; }
  .mosaic-action-source header img { width: 48px; height: 48px; border-radius: 15px; }
  .mosaic-action-source header em { grid-column: 2; justify-self: start; margin-top: -5px; }
  .mosaic-context-grid { margin-top: 20px; gap: 7px; }
  .mosaic-context-grid > span { min-height: 72px; padding: 9px; grid-template-columns: 30px 1fr; gap: 7px; }
  .mosaic-context-grid i { width: 30px; height: 30px; }
  .mosaic-action-source > p { margin-top: 18px; }
  .channel-stack { grid-template-columns: 1fr; }
  .channel-card { min-height: 0; padding: 13px; grid-template-columns: 44px 1fr; gap: 11px; border-radius: 18px; }
  .channel-icon { width: 44px; height: 44px; border-radius: 14px; }
  .channel-card > em { grid-column: 2; justify-self: start; }
  .channel-card div b { font-size: 16px; }
  .channel-card div p { font-size: 10px; }

  .control-section { padding: 52px 0 68px; }
  .control-heading { margin-bottom: 25px; }
  .control-heading h2 { font-size: 42px; }
  .control-heading p { display: block; margin-top: 12px; font-size: 15px; }
  .mode-cards { display: flex; flex-direction: column; gap: 10px; }
  .mode-card { min-height: 0; padding: 15px; display: grid; grid-template-columns: 46px 1fr 26px; align-items: center; column-gap: 12px; border-radius: 20px; }
  .mode-icon { width: 46px; height: 46px; border-radius: 15px; }
  .mode-copy { margin: 0; }
  .mode-copy b { font-size: 17px; }
  .mode-copy small { min-height: 0; margin-top: 4px; font-size: 12px; }
  .mode-check { position: static; width: 26px; height: 26px; }
  .mode-list { display: none; }
  .closing-form { margin-top: 14px; padding: 15px; display: block; border-radius: 22px; }
  .mode-summary { grid-template-columns: 44px 1fr; }
  .launch-icon { width: 44px; height: 44px; border-radius: 14px; }
  .mode-summary b { font-size: 13px; }
  .mode-summary small { font-size: 11px; }
  .closing-input { margin-top: 14px; grid-template-columns: 22px 1fr; padding: 8px; }
  .closing-input input { height: 40px; }
  .closing-input button { grid-column: 1 / -1; min-height: 46px; justify-content: center; }
  .closing-form > p { position: static; margin-top: 10px; text-align: center; font-size: 10px; }
  .closing-actions { margin-top: 14px; padding: 8px; grid-template-columns: 1fr; }
  .closing-actions p { padding: 0 7px 4px; text-align: center; }
  .closing-cta { width: 100%; min-height: 48px; }
  .site-footer { padding: 25px 0; flex-direction: column; align-items: flex-start; }
}

@media (max-width: 390px) {
  :root { --page: calc(100vw - 24px); }
  .hero h1 { font-size: 37px; }
  .hero-copy > p { font-size: 14px; }
  .product-stage { height: 400px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .demo-control, .sample-preview-control button { display: none; }
}
.reduce-motion { scroll-behavior: auto; }
.reduce-motion *, .reduce-motion *::before, .reduce-motion *::after { animation: none !important; transition-duration: .01ms !important; }
.reduce-motion .demo-control, .reduce-motion .demo-brief i, .reduce-motion .sample-preview-control button { display: none; }