:root {
  --paper: #f7f4ec;
  --paper-strong: #fffdf6;
  --ink: #151711;
  --muted: #62685d;
  --line: #d8d2c3;
  --field: #ebe4d5;
  --sun: #f4d35e;
  --leaf: #4f7d61;
  --blue: #356b8c;
  --rose: #b45c4a;
  --shadow: 0 18px 60px rgba(21, 23, 17, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 clamp(20px, 5vw, 72px);
  background: rgba(247, 244, 236, 0.86);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
}

.site-header[data-scrolled] {
  border-color: rgba(21, 23, 17, 0.12);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 760;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid rgba(21, 23, 17, 0.18);
  background: var(--sun);
  color: var(--ink);
  font-size: 17px;
  line-height: 1;
}

.primary-nav,
.footer-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 30px);
}

.primary-nav a,
.footer-links a,
.legacy-links a,
.side-note a {
  color: var(--ink);
  text-decoration-color: rgba(21, 23, 17, 0.28);
  text-underline-offset: 5px;
}

.primary-nav a {
  color: var(--muted);
  font-size: 0.96rem;
  text-decoration: none;
}

.primary-nav a[aria-current="page"],
.primary-nav a:hover {
  color: var(--ink);
}

.hero {
  position: relative;
  min-height: calc(90svh - 72px);
  overflow: hidden;
  border-bottom: 1px solid rgba(21, 23, 17, 0.1);
}

.hero-scene {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.scene-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(21, 23, 17, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 23, 17, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
}

.scene-lines {
  position: absolute;
  right: -6vw;
  bottom: 8vh;
  display: grid;
  gap: 18px;
  width: min(42vw, 620px);
  transform: rotate(-6deg);
  opacity: 0.62;
}

.scene-lines span {
  height: 14px;
  background: linear-gradient(90deg, var(--blue), var(--leaf), var(--sun), var(--rose));
}

.scene-lines span:nth-child(2) {
  width: 75%;
  margin-left: auto;
}

.scene-lines span:nth-child(3) {
  width: 48%;
}

.scene-lines span:nth-child(4) {
  width: 62%;
  margin-left: 18%;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(360px, 0.78fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: center;
  width: min(1180px, calc(100% - 40px));
  min-height: calc(90svh - 72px);
  margin: 0 auto;
  padding: clamp(42px, 7vw, 88px) 0;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--leaf);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  line-height: 1.04;
  letter-spacing: 0;
}

h1 {
  max-width: 900px;
  margin-bottom: 22px;
  font-size: clamp(3.25rem, 6.4vw, 5.9rem);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4.3vw, 4.4rem);
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
}

.lede,
.page-hero p,
.section-heading p,
.band-inner p {
  color: var(--muted);
  font-size: clamp(1.08rem, 1.5vw, 1.35rem);
}

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

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  font-weight: 760;
  text-decoration: none;
}

.button.primary {
  background: var(--ink);
  color: var(--paper);
}

.button.secondary {
  background: rgba(255, 253, 246, 0.65);
}

.conversation-surface {
  width: min(100%, 480px);
  padding: 22px;
  justify-self: end;
  background: rgba(255, 253, 246, 0.74);
  border: 1px solid rgba(21, 23, 17, 0.16);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.surface-topline,
.signal-row {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.88rem;
}

.surface-topline strong {
  color: var(--ink);
}

.waveform {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 92px;
  margin: 26px 0;
  padding: 0 4px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.waveform span {
  width: 6px;
  height: var(--bar-height, 34px);
  background: var(--ink);
  opacity: calc(0.28 + (var(--i) % 6) * 0.08);
}

.transcript-stack {
  display: grid;
  gap: 10px;
}

.transcript-stack article {
  padding: 14px;
  background: var(--paper-strong);
  border: 1px solid var(--line);
}

.transcript-stack span {
  display: block;
  margin-bottom: 4px;
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 800;
}

.transcript-stack p {
  margin: 0;
  color: var(--ink);
  font-size: 0.96rem;
}

.signal-row {
  flex-wrap: wrap;
  justify-content: flex-start;
  margin-top: 18px;
}

.signal-row span {
  padding: 6px 8px;
  background: var(--field);
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 750;
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(70px, 10vw, 128px) 0;
}

.section.tight {
  padding-top: clamp(64px, 8vw, 104px);
}

.section-heading {
  max-width: 800px;
  margin-bottom: 34px;
}

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

.feature-grid article,
.principle-list article,
.side-note {
  border: 1px solid var(--line);
  background: rgba(255, 253, 246, 0.65);
}

.feature-grid article {
  min-height: 252px;
  padding: 24px;
}

.feature-kicker {
  display: block;
  margin-bottom: 34px;
  color: var(--rose);
  font-size: 0.82rem;
  font-weight: 800;
}

.feature-grid p,
.principle-list p,
.prose p,
.side-note p,
.site-footer p {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(28px, 6vw, 92px);
}

.principle-list {
  display: grid;
  gap: 12px;
}

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

.band {
  width: 100%;
  max-width: none;
  padding-right: clamp(20px, 5vw, 72px);
  padding-left: clamp(20px, 5vw, 72px);
  background: var(--ink);
  color: var(--paper);
}

.band-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 72px);
  width: min(1180px, 100%);
  margin: 0 auto;
}

.band .eyebrow {
  color: var(--sun);
}

.band p {
  color: rgba(247, 244, 236, 0.76);
}

.legacy-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.legacy-links a {
  min-height: 88px;
  padding: 18px;
  background: var(--paper-strong);
  border: 1px solid var(--line);
  font-weight: 760;
  text-decoration: none;
}

.page-hero {
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(70px, 10vw, 132px) 0 clamp(32px, 5vw, 64px);
}

.page-hero h1 {
  font-size: clamp(3rem, 6.5vw, 5.8rem);
}

.content-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: clamp(24px, 5vw, 68px);
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
  padding-bottom: clamp(80px, 11vw, 132px);
}

.prose {
  display: grid;
  gap: 34px;
}

.prose section {
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.prose h2,
.side-note h2 {
  font-size: clamp(1.42rem, 2.4vw, 2rem);
}

.side-note {
  align-self: start;
  padding: 20px;
}

code {
  padding: 2px 5px;
  background: var(--field);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: start;
  padding: 42px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

.footer-brand {
  margin-bottom: 12px;
}

@media (max-width: 880px) {
  .site-header {
    align-items: flex-start;
    min-height: auto;
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .primary-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px 16px;
  }

  .hero-inner,
  .split,
  .band-inner,
  .content-shell,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
  }

  .conversation-surface {
    justify-self: start;
  }

  .feature-grid,
  .legacy-links {
    grid-template-columns: 1fr;
  }

  .site-footer {
    padding-bottom: 86px;
  }
}

@media (max-width: 560px) {
  .site-header {
    gap: 16px;
  }

  .primary-nav a {
    font-size: 0.9rem;
  }

  h1 {
    font-size: clamp(3rem, 16vw, 4.2rem);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .conversation-surface {
    padding: 16px;
  }
}

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