:root {
  --paper: #f3ede7;
  --ink: #1f1f1f;
  --muted: #9e9388;
  --line: #c2b5a8;
  --slate: #7c7c7b;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 4rem 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  text-decoration: none;
  color: inherit;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.brand img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.brand span {
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.35rem;
}

nav {
  display: inline-flex;
  gap: 2rem;
}

nav a {
  color: inherit;
  text-decoration: none;
  font-size: 1rem;
}

.hero-grid {
  display: grid;
  gap: 3.2rem;
  grid-template-columns: 1fr 1fr;
}

.hero article {
  padding-right: 1rem;
  border-right: 2px solid var(--line);
}

.hero aside h2 {
  margin-top: 0;
  font-size: 1rem;
  font-weight: 600;
}

.hero aside h3 {
  margin-bottom: 0.35rem;
  font-size: 1rem;
}

.hero aside p {
  color: var(--muted);
  margin-top: 0;
}

.thesis {
  background: var(--slate);
  color: var(--paper);
}

.thesis h2,
.join h2 {
  margin-top: 0;
  margin-bottom: 1.2rem;
  font-size: clamp(1.5rem, 2.2vw, 2rem);
}

.thesis-columns {
  column-count: 2;
  column-gap: 2.5rem;
}

.thesis-columns p {
  margin: 0 0 1rem;
  break-inside: avoid;
}

.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
}

.interest-form {
  background: var(--slate);
  color: var(--paper);
  padding: 1.4rem;
  border-radius: 2px;
  align-self: start;
}

.interest-form h3 {
  margin-top: 0;
  font-weight: 600;
  font-size: 1.1rem;
}

.interest-form label {
  display: block;
  margin-bottom: 0.9rem;
  font-size: 0.95rem;
}

.interest-form input {
  margin-top: 0.35rem;
  width: 100%;
  height: 42px;
  border: 0;
  border-radius: 2px;
  padding: 0 0.8rem;
  font: inherit;
}

.interest-form button {
  background: var(--paper);
  color: var(--ink);
  border: 0;
  border-radius: 2px;
  min-height: 42px;
  padding: 0 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.site-footer {
  background: var(--slate);
  color: var(--paper);
  border-top: 1px solid color-mix(in srgb, var(--paper) 28%, transparent);
}

.site-footer p {
  margin: 0;
  padding: 1rem 0;
  font-size: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-footer a {
  color: inherit;
}

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

  .hero article {
    border-right: 0;
    border-bottom: 2px solid var(--line);
    padding-right: 0;
    padding-bottom: 1.5rem;
  }

  .thesis-columns {
    column-count: 1;
  }
}

@media (max-width: 760px) {
  .section {
    padding: 3rem 0;
  }

  .nav-wrap {
    min-height: auto;
    padding: 1rem 0;
    flex-direction: column;
    align-items: flex-start;
  }

  nav {
    gap: 1.15rem;
  }

  nav a {
    font-size: 0.95rem;
  }
}