:root {
  --bg: #f6f8f5;
  --surface: #ffffff;
  --surface-strong: #e9f0ea;
  --ink: #141815;
  --muted: #59645f;
  --soft: #dce5df;
  --line: #d8e0da;
  --accent: #0f766e;
  --accent-dark: #0a4f49;
  --accent-soft: #d8eeea;
  --rust: #9b5141;
  --blue: #315f83;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 2px rgba(30, 25, 15, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background:
    linear-gradient(rgba(20, 24, 21, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 24, 21, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 780px;
  font-size: clamp(2.7rem, 6.2vw, 5.2rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 0.95;
}

h2 {
  max-width: 780px;
  font-size: clamp(1.8rem, 4vw, 3.6rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
}

h3 {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
}

.section-shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  width: min(1160px, calc(100% - 40px));
  margin: 12px auto 0;
  padding: 10px 12px;
  border: 1px solid rgba(216, 224, 218, 0.9);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand,
.desktop-nav,
.header-cta {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  min-width: 0;
  font-weight: 700;
}

.brand img {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  object-fit: contain;
}

.brand span {
  line-height: 1;
}

.desktop-nav {
  gap: 22px;
  color: var(--muted);
  font-size: 0.93rem;
}

.desktop-nav a:hover,
.site-footer a:hover {
  color: var(--ink);
}

.header-cta {
  justify-self: end;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font-size: 0.93rem;
  font-weight: 600;
}

.menu-toggle,
.mobile-nav {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.75fr);
  align-items: center;
  gap: 54px;
  min-height: calc(100vh - 84px);
  padding: 86px 0 58px;
}

.hero-copy {
  display: grid;
  gap: 28px;
}

.section-kicker {
  color: var(--accent-dark);
  font-size: 0.95rem;
  font-weight: 700;
}

.hero-lede,
.section-lede {
  max-width: 700px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: var(--radius);
  font-weight: 700;
}

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

.button-primary:hover {
  background: #063f3a;
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.proof-line {
  max-width: 650px;
  color: var(--muted);
}

.system-visual {
  overflow: hidden;
  border: 1px solid #cbd8d0;
  border-radius: var(--radius-lg);
  background: #eef5f1;
  box-shadow: 0 8px 24px rgba(54, 48, 35, 0.08);
}

.visual-toolbar {
  display: flex;
  gap: 7px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.visual-toolbar span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--line);
}

.visual-toolbar span:nth-child(2) {
  background: var(--blue);
}

.visual-toolbar span:nth-child(3) {
  background: var(--accent);
}

.visual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
}

.visual-card {
  min-height: 150px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.visual-card span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.visual-card strong {
  display: block;
  margin-top: 18px;
  color: var(--ink);
  font-size: 1.45rem;
  line-height: 1.1;
}

.visual-card p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.visual-card-featured {
  background: var(--accent-dark);
}

.visual-card-featured span,
.visual-card-featured p {
  color: rgba(255, 255, 255, 0.76);
}

.visual-card-featured strong {
  color: white;
}

.content-section {
  padding: 96px 0;
}

.section-heading {
  display: grid;
  gap: 14px;
  margin-bottom: 34px;
}

.section-heading.narrow {
  max-width: 790px;
}

.principle-card,
.engagement-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.principle-card p,
.engagement-card p {
  color: var(--muted);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.principle-card {
  min-height: 230px;
}

.principle-card h3 {
  margin-bottom: 14px;
}

.experience-band {
  padding: 96px 0;
  background: #e8f0ec;
  border-block: 1px solid var(--line);
}

.experience-list {
  max-width: 860px;
}

.experience-bullets {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.experience-bullets li {
  position: relative;
  padding: 18px 20px 18px 44px;
  border: 1px solid #cad8d1;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
  font-size: 1.04rem;
  line-height: 1.55;
}

.experience-bullets li::before {
  position: absolute;
  top: 1.65em;
  left: 22px;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  content: "";
}

.engagement-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.engagement-card h3 {
  margin-bottom: 12px;
}

.cta-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 32px;
  padding: 84px 0;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.cta-section h2 {
  max-width: 640px;
}

.cta-section p:not(.section-kicker) {
  max-width: 670px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.1rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0 42px;
  color: var(--muted);
}

.site-footer p {
  color: var(--ink);
  font-weight: 700;
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: grid;
    width: 40px;
    height: 38px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: transparent;
  }

  .menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 99px;
    background: var(--ink);
  }

  .mobile-nav {
    grid-column: 1 / -1;
    gap: 12px;
    padding: 12px 0 4px;
    border-top: 1px solid var(--line);
  }

  .mobile-nav.is-open {
    display: grid;
  }

  .hero,
  .cta-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 58px;
  }

  .principles-grid,
  .engagement-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-section {
    align-items: start;
  }

  .cta-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .section-shell,
  .site-header {
    width: min(100% - 28px, 1160px);
  }

  .site-header {
    margin-top: 8px;
  }

  .brand img {
    width: 36px;
    height: 36px;
  }

  h1 {
    font-size: clamp(2rem, 8.8vw, 2.6rem);
    line-height: 1.08;
  }

  h2 {
    font-size: clamp(1.45rem, 6.6vw, 2rem);
    line-height: 1.08;
  }

  .hero-lede,
  .section-lede {
    font-size: 1rem;
  }

  .hero {
    gap: 30px;
    padding: 38px 0 42px;
  }

  .hero-copy {
    gap: 18px;
  }

  .button {
    width: 100%;
  }

  .cta-actions {
    width: 100%;
  }

  .visual-grid,
  .principles-grid,
  .engagement-grid {
    grid-template-columns: 1fr;
  }

  .content-section,
  .experience-band {
    padding: 54px 0;
  }

  .site-footer,
  .site-footer div {
    flex-direction: column;
  }
}