:root {
  --paper: oklch(0.985 0.006 106);
  --paper-deep: oklch(0.955 0.01 106);
  --ink: oklch(0.2 0.025 250);
  --muted: oklch(0.48 0.025 250);
  --line: oklch(0.86 0.018 106);
  --accent: oklch(0.58 0.16 164);
  --accent-soft: oklch(0.93 0.045 164);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  min-width: 320px;
}

a {
  color: inherit;
}

.page-shell {
  min-height: 100vh;
  background:
    linear-gradient(135deg, var(--accent-soft), transparent 34rem),
    linear-gradient(180deg, var(--paper), var(--paper-deep));
}

.hero,
.section-block,
.closing {
  max-width: 72rem;
  margin: 0 auto;
}

.hero {
  padding: clamp(1rem, 2vw, 2rem) clamp(1rem, 4vw, 4rem) clamp(2.5rem, 5vw, 4rem);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.contact-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.8rem;
  min-width: 2.8rem;
  padding: 0 1rem;
  border: 1px solid color-mix(in oklch, var(--ink) 18%, var(--line));
  border-radius: 0.45rem;
  background: color-mix(in oklch, var(--paper) 88%, var(--accent-soft));
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 720;
  text-decoration: none;
}

.action-button--icon {
  padding: 0;
}

.action-icon {
  width: 1.35rem;
  height: 1.35rem;
  flex: 0 0 auto;
}

.action-icon--image {
  display: block;
  object-fit: contain;
}

.hero__content {
  max-width: 46rem;
}

.identity-portraits {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.identity-portrait {
  width: clamp(4rem, 7vw, 5.5rem);
  height: clamp(4rem, 7vw, 5.5rem);
  display: inline-grid;
  place-items: center;
  border: 1px solid color-mix(in oklch, var(--ink) 14%, var(--line));
  border-radius: 50%;
  background: color-mix(in oklch, var(--paper) 88%, var(--accent-soft));
  overflow: hidden;
}

.identity-portrait--person {
  object-fit: cover;
}

.identity-portrait--client {
  padding: 0.75rem;
  object-fit: contain;
}

.identity-portrait--fallback {
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 760;
  text-align: center;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.04;
}

.positioning {
  margin: 0.45rem 0 0;
  color: var(--ink);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 680;
  line-height: 1.35;
}

.intro {
  max-width: 62ch;
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.16rem);
  line-height: 1.6;
}

.section-block {
  padding: clamp(1rem, 2.5vw, 2rem) clamp(1rem, 4vw, 4rem);
}

.pain-points {
  padding-top: clamp(0.25rem, 1vw, 0.75rem);
}

.section-heading {
  max-width: 44rem;
  margin-bottom: clamp(1rem, 2vw, 1.6rem);
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.45rem, 2.5vw, 2.15rem);
  line-height: 1.1;
}

.use-cases {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.use-case {
  padding: clamp(1.1rem, 3vw, 2rem);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: color-mix(in oklch, var(--paper) 92%, var(--accent-soft));
}

.use-case__number {
  width: 2.4rem;
  height: 2.4rem;
  display: inline-grid;
  place-items: center;
  border: 1px solid color-mix(in oklch, var(--accent) 44%, var(--line));
  border-radius: 50%;
  color: var(--accent);
  font-size: 0.86rem;
  font-weight: 800;
}

.use-case h2 {
  max-width: 28ch;
  margin: 0 0 1.2rem;
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  line-height: 1.12;
}

dl {
  margin: 0;
  display: grid;
  gap: 1.1rem;
}

dt {
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 820;
  letter-spacing: 0;
  text-transform: uppercase;
}

dd {
  max-width: 68ch;
  margin: 0.3rem 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.fit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.fit-grid section,
.engagement {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: color-mix(in oklch, var(--paper) 94%, var(--accent-soft));
}

.fit-grid section {
  padding: clamp(1.1rem, 3vw, 1.7rem);
}

h3 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.3;
}

ul {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
  color: var(--muted);
  line-height: 1.55;
}

li + li {
  margin-top: 0.55rem;
}

.engagements {
  display: grid;
  gap: 1rem;
}

.engagement {
  padding: clamp(1.1rem, 3vw, 1.7rem);
  display: grid;
  grid-template-columns: minmax(10rem, 0.45fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
}

.engagement p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

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

.meta {
  margin-top: 0.25rem;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 720;
}

.closing {
  padding: clamp(1.2rem, 3vw, 2.2rem) clamp(1rem, 4vw, 4rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.footer-actions {
  display: flex;
  justify-content: space-between;
}

.contact-actions--secondary {
  justify-content: flex-end;
}

@media (max-width: 820px) {
  .nav,
  .closing {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .footer-actions {
    width: 100%;
    justify-content: flex-start;
  }

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

  .use-case {
    grid-template-columns: 1fr;
  }
}