:root {
  --ink: #172026;
  --muted: #5f6d74;
  --line: #dfe6e6;
  --paper: #fbfaf6;
  --white: #ffffff;
  --blue: #245dff;
  --teal: #0e8f83;
  --gold: #d59b2d;
  --rose: #c8546b;
  --shadow: 0 18px 50px rgba(23, 32, 38, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 64px);
  border-bottom: 1px solid rgba(223, 230, 230, 0.8);
  background: rgba(251, 250, 246, 0.9);
  backdrop-filter: blur(14px);
}

.brand,
.site-header nav,
.hero-actions,
.panel-grid,
.badges {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 750;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 7px;
  background: var(--ink);
  color: var(--white);
  font-size: 0.82rem;
}

.site-header nav {
  gap: clamp(14px, 3vw, 28px);
  color: var(--muted);
  font-size: 0.95rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 410px);
  gap: clamp(36px, 6vw, 86px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(54px, 8vw, 104px) clamp(20px, 4vw, 64px) 56px;
  background:
    linear-gradient(135deg, rgba(36, 93, 255, 0.12), transparent 34%),
    linear-gradient(315deg, rgba(14, 143, 131, 0.14), transparent 34%),
    var(--paper);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 880px;
  margin-bottom: 22px;
  font-size: clamp(3.2rem, 8vw, 7.4rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 6px;
  font-size: 1.18rem;
  line-height: 1.2;
}

.hero-subtitle {
  max-width: 760px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
}

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

.button,
.subscribe-form button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 8px;
  padding: 13px 18px;
  font-weight: 750;
}

.primary,
.subscribe-form button {
  background: var(--ink);
  color: var(--white);
}

.secondary {
  background: var(--white);
}

.research-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.panel-label {
  margin-bottom: 16px;
  color: var(--muted);
  font-weight: 700;
}

.research-panel strong {
  display: block;
  margin-bottom: 4px;
  font-size: 6rem;
  line-height: 0.9;
}

.research-panel > span {
  display: block;
  color: var(--muted);
  font-size: 1.12rem;
}

.panel-grid {
  gap: 12px;
  margin-top: 28px;
}

.panel-grid div {
  flex: 1;
  border-top: 3px solid var(--blue);
  padding-top: 12px;
}

.panel-grid div:last-child {
  border-color: var(--gold);
}

.panel-grid b {
  display: block;
  font-size: 1.6rem;
}

.panel-grid span {
  color: var(--muted);
}

.section,
.cta {
  padding: clamp(64px, 9vw, 118px) clamp(20px, 4vw, 64px);
}

.section-heading {
  max-width: 920px;
  margin-bottom: 30px;
}

.split {
  display: flex;
  max-width: none;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.text-link {
  color: var(--blue);
  font-weight: 800;
  white-space: nowrap;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(300px, 1.15fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.intro-copy {
  color: var(--muted);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

.formula {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(5, minmax(130px, 1fr));
  gap: 10px;
}

.formula span,
.formula strong {
  display: grid;
  min-height: 92px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}

.formula strong {
  background: var(--ink);
  color: var(--white);
}

.founder-grid,
.landscape-grid,
.finding-list {
  display: grid;
  gap: 16px;
}

.founder-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.founder-card,
.landscape-grid article,
.finding-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.founder-card {
  display: flex;
  min-height: 260px;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
}

.product {
  margin-bottom: 4px;
  color: var(--blue);
  font-weight: 800;
}

.category {
  color: var(--muted);
  font-size: 0.94rem;
}

.badges {
  flex-wrap: wrap;
  gap: 7px;
  margin: 18px 0;
}

.badges span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 9px;
  background: #f6f8f8;
  color: #334047;
  font-size: 0.78rem;
  font-weight: 750;
}

.founder-card > p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.landscape {
  background: #eef6f4;
}

.landscape-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.landscape-grid article {
  padding: 24px;
  background: rgba(255, 255, 255, 0.82);
}

.landscape-grid p {
  color: var(--muted);
}

.landscape-grid span {
  display: block;
  color: var(--teal);
  font-weight: 800;
}

.findings {
  background: var(--white);
}

.finding-list {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.finding-list article {
  padding: 22px;
}

.finding-list span {
  display: grid;
  width: 34px;
  height: 34px;
  margin-bottom: 20px;
  place-items: center;
  border-radius: 50%;
  background: var(--gold);
  color: var(--ink);
  font-weight: 850;
}

.finding-list p {
  color: var(--muted);
}

.cta {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  background: var(--ink);
  color: var(--white);
}

.cta p {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.76);
}

.subscribe-form {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.08);
}

.subscribe-form label {
  display: block;
  margin-bottom: 10px;
  font-weight: 800;
}

.subscribe-form div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.subscribe-form input {
  min-height: 48px;
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  padding: 0 14px;
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  font: inherit;
}

.subscribe-form input::placeholder {
  color: rgba(255, 255, 255, 0.58);
}

.subscribe-form button {
  border-color: var(--white);
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
}

@media (max-width: 980px) {
  .hero,
  .intro,
  .cta {
    grid-template-columns: 1fr;
  }

  .founder-grid,
  .landscape-grid,
  .finding-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .formula strong {
    grid-column: 1 / -1;
  }
}

@media (max-width: 680px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    font-size: 3.25rem;
  }

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

  .founder-grid,
  .landscape-grid,
  .finding-list,
  .formula,
  .subscribe-form div {
    grid-template-columns: 1fr;
  }

  .formula strong {
    grid-column: auto;
  }

  .founder-card {
    min-height: 220px;
  }
}