:root {
  color-scheme: light;
  --blue: #1d5fd0;
  --blue-dark: #154aa6;
  --blue-soft: #edf4ff;
  --blue-pale: #f7faff;
  --ink: #171a20;
  --slate: #505866;
  --muted: #596373;
  --line: #dfe4ec;
  --white: #ffffff;
  --radius: 16px;
  --shadow: 0 24px 60px rgba(19, 44, 89, 0.13);
  font-family: Geist, "Helvetica Neue", Arial, sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: inherit;
  text-underline-offset: 4px;
}

img {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
p,
figure,
dl,
dd {
  margin: 0;
}

h1,
h2,
h3 {
  line-height: 1.08;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 670px;
  font-size: clamp(3rem, 5vw, 5.4rem);
  font-weight: 600;
}

h2 {
  font-size: clamp(2.15rem, 4vw, 4.35rem);
  font-weight: 560;
}

h3 {
  font-size: clamp(1.3rem, 2vw, 1.75rem);
  font-weight: 600;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 100;
  padding: 11px 16px;
  border-radius: 8px;
  color: var(--white);
  background: var(--blue);
}

.skip-link:focus {
  top: 12px;
}

.site-header,
.site-footer {
  width: min(100% - 40px, 1360px);
  margin-inline: auto;
}

.site-header {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 650;
  text-decoration: none;
}

.brand-mark {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--blue);
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.5vw, 34px);
  font-size: 0.9rem;
}

.site-header nav a {
  text-decoration: none;
}

.site-header nav a:hover {
  text-decoration: underline;
}

.site-header .header-action {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.hero {
  width: min(100% - 40px, 1360px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  align-items: center;
  gap: clamp(46px, 6vw, 90px);
  padding: clamp(64px, 9vw, 128px) 0 clamp(72px, 10vw, 144px);
}

.hero-copy {
  max-width: 1060px;
}

.eyebrow,
.section-kicker {
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow {
  margin-bottom: 24px;
}

.hero-intro {
  max-width: 710px;
  margin-top: 32px;
  color: var(--slate);
  font-size: clamp(1.12rem, 2.2vw, 1.45rem);
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 650;
  line-height: 1.3;
  text-decoration: none;
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.button:hover {
  filter: brightness(0.96);
}

.button-primary {
  color: var(--white);
  background: var(--blue);
}

.button-primary:hover {
  background: var(--blue-dark);
}

.button-secondary {
  border-color: var(--line);
  background: var(--white);
}

.button-secondary:hover {
  border-color: #b8c5d8;
  background: var(--blue-pale);
}

.external-label {
  font-size: 0.72rem;
  font-weight: 550;
  opacity: 1;
}

.hero-note {
  margin-top: 15px;
  color: var(--muted);
  font-size: 0.84rem;
}

.product-frame {
  margin: 0;
  overflow: hidden;
  border: 1px solid #cfd8e7;
  border-radius: 18px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.browser-bar {
  min-height: 46px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 15px;
  border-bottom: 1px solid var(--line);
  background: #f6f8fb;
}

.browser-bar > span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #c3c9d2;
}

.browser-bar div {
  margin-inline: auto;
  padding-right: 45px;
  color: var(--muted);
  font-size: 0.75rem;
}

.product-frame img {
  width: 100%;
  height: auto;
}

.product-frame figcaption {
  padding: 14px 18px 16px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
}

.positioning {
  padding: clamp(72px, 10vw, 140px) max(20px, calc((100vw - 1120px) / 2));
  color: var(--white);
  background: #12203a;
}

.positioning .section-kicker,
.closing .section-kicker {
  color: #9fc3ff;
}

.positioning h2 {
  max-width: 920px;
  margin-top: 24px;
}

.positioning > p:last-child {
  max-width: 700px;
  margin: 34px 0 0 auto;
  color: #c4cfdf;
  font-size: 1.16rem;
}

.learning-section,
.facilitator-section,
.principles {
  width: min(100% - 40px, 1160px);
  margin-inline: auto;
  padding: clamp(80px, 10vw, 140px) 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.6fr);
  gap: 28px 70px;
  align-items: end;
}

.section-heading .section-kicker {
  grid-column: 1 / -1;
}

.section-heading > p:last-child {
  color: var(--slate);
  font-size: 1.08rem;
}

.learning-flow {
  display: grid;
  grid-template-columns: 0.9fr 1.2fr 0.9fr;
  align-items: stretch;
  gap: 18px;
  margin-top: 58px;
}

.flow-step {
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(24px, 3vw, 38px);
  border-top: 3px solid #b9c9e2;
  background: #f6f8fb;
}

.flow-step-featured {
  min-height: 390px;
  color: var(--white);
  border-color: #75a9ff;
  background: var(--blue);
  transform: translateY(-18px);
}

.step-number {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.1em;
}

.flow-step-featured .step-number {
  color: #d7e6ff;
}

.flow-step h3 {
  margin-bottom: 15px;
}

.flow-step p {
  color: var(--slate);
}

.flow-step-featured p {
  color: #dbe8ff;
}

.facilitator-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(50px, 9vw, 120px);
  border-top: 1px solid var(--line);
}

.facilitator-copy {
  align-self: start;
  position: sticky;
  top: 100px;
}

.facilitator-copy h2 {
  margin-top: 22px;
}

.facilitator-copy > p:not(.section-kicker) {
  margin-top: 28px;
  color: var(--slate);
  font-size: 1.08rem;
}

.text-link {
  display: inline-block;
  margin-top: 28px;
  color: var(--blue);
  font-weight: 650;
}

.view-stack {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.view-stack li {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 20px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.view-index {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--blue);
  background: var(--blue-soft);
  font-weight: 700;
}

.view-stack strong,
.view-stack span {
  display: block;
}

.view-stack strong {
  margin-bottom: 8px;
  font-size: 1.2rem;
}

.view-stack div span {
  color: var(--slate);
}

.principles {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: clamp(50px, 9vw, 120px);
  padding-top: 0;
}

.principles h2 {
  margin-top: 22px;
}

.principles dl {
  border-top: 1px solid var(--line);
}

.principles dl > div {
  display: grid;
  grid-template-columns: minmax(150px, 0.45fr) 1fr;
  gap: 24px;
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
}

.principles dt {
  font-weight: 700;
}

.principles dd {
  color: var(--slate);
}

.closing {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 50px;
  padding: clamp(72px, 9vw, 120px) max(20px, calc((100vw - 1160px) / 2));
  color: var(--white);
  background: var(--blue);
}

.closing h2 {
  max-width: 640px;
  margin-top: 18px;
}

.closing .actions {
  flex-shrink: 0;
}

.closing .button-primary {
  color: var(--blue);
  background: var(--white);
}

.button-on-dark {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}

.button-on-dark:hover {
  background: rgba(255, 255, 255, 0.1);
}

.site-footer {
  min-height: 110px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: 0.86rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

a:focus-visible {
  outline: 3px solid #82adf5;
  outline-offset: 4px;
}

@media (max-width: 850px) {
  .site-header nav > a:not(.header-action) {
    display: none;
  }

  .section-heading,
  .hero,
  .facilitator-section,
  .principles {
    grid-template-columns: 1fr;
  }

  .product-frame {
    margin-top: 8px;
  }

  .facilitator-copy {
    position: static;
  }

  .learning-flow {
    grid-template-columns: 1fr;
  }

  .flow-step,
  .flow-step-featured {
    min-height: 280px;
    transform: none;
  }

  .closing {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .site-header,
  .site-footer,
  .hero,
  .learning-section,
  .facilitator-section,
  .principles {
    width: min(100% - 28px, 1160px);
  }

  .site-header {
    min-height: 72px;
  }

  .site-header .header-action {
    padding-inline: 11px;
    font-size: 0.82rem;
  }

  h1 {
    font-size: clamp(2.65rem, 14vw, 4rem);
  }

  .button {
    width: 100%;
  }

  .browser-bar div {
    text-align: right;
    padding-right: 0;
  }

  .product-frame figcaption {
    font-size: 0.74rem;
  }

  .principles dl > div {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }

  .button:hover {
    transform: none;
  }
}

.site-header a, .site-footer a, .text-link { min-height:44px; display:inline-flex; align-items:center; }
@media(min-width:851px) and (max-width:1100px) { .hero { grid-template-columns:1fr; } .hero-copy { max-width:780px; } .product-frame { max-width:100%; } .closing { flex-direction:column; align-items:flex-start; } }

/* The closing panel uses blue, so the small kicker needs white text. */
.closing .section-kicker { color:#fff; }
html { scroll-padding-top:calc(var(--kh-bar-height,80px) + 24px); }