:root {
  --color-text: #868e96;
  --color-heading: #2f3b49;
  --color-muted-heading: #868e96;
  --color-accent: #6caae4;
  --color-dark: #2f3b49;
  --color-mid: #495058;
  --color-light: #f7f8fb;
  --color-border: #e9ecef;
  --max-width: 1160px;
  --shadow-soft: 0 18px 40px rgba(47, 59, 73, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Nunito', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: #fff;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

a:hover,
a:focus {
  color: var(--color-accent);
}

a:focus-visible,
.button:focus-visible {
  outline: 3px solid rgba(108, 170, 228, 0.45);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  padding: 0.75rem 1.25rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 6px;
  font-weight: 600;
  transition: top 0.2s ease;
  z-index: 1000;
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.section--pale {
  background: var(--color-light);
}

.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 999;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav__anchor {
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: 1.1rem;
  color: var(--color-mid);
  transition: color 0.2s ease;
}

.site-nav__anchor:hover {
  color: var(--color-accent);
}

.brand img {
  width: 208px;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 6px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: var(--shadow-soft);
}

.site-nav__link:hover {
  transform: translateY(-2px);
  background: #4f9edc;
  color: #fff;
}

.hero {
  padding-top: 6rem;
  padding-bottom: 6rem;
}

.hero__layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3rem;
  align-items: center;
}

.hero__content h1 {
  margin: 0 0 1.5rem;
  font-size: clamp(2.6rem, 5vw, 3.2rem);
  line-height: 1.2;
  color: var(--color-muted-heading);
  font-weight: 400;
}

.hero__content p {
  margin: 0 0 2.5rem;
  font-size: 1.2rem;
}

.hero__media img {
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.1rem 2.5rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 12px 30px rgba(108, 170, 228, 0.35);
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(108, 170, 228, 0.35);
  background: #4f9edc;
  color: #fff;
}

.process__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.process__intro h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--color-muted-heading);
  font-weight: 400;
}

.process__intro h3 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--color-muted-heading);
  font-weight: 400;
}

.process__intro p {
  margin: 0;
  font-size: 1.15rem;
}

.process__steps {
  display: grid;
  gap: 1.5rem;
}

.step-card {
  background: #fff;
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-soft);
  display: grid;
  justify-items: center;
  gap: 1rem;
}

.step-card__label {
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.step-card img {
  width: 90px;
}

.step-card p {
  margin: 0;
  font-size: 1.05rem;
}

.case-studies__heading {
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
  text-align: center;
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  color: var(--color-muted-heading);
  font-weight: 400;
}

.case-study {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
}

.case-study--reverse {
  direction: rtl;
  text-align: left;
}

.case-study--reverse > * {
  direction: ltr;
}

.case-study__copy h3 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.9rem, 3vw, 2.3rem);
  color: var(--color-muted-heading);
  font-weight: 700;
}

.case-study__copy p {
  margin: 0 0 1.5rem;
}

.case-study__media img {
  border-radius: 24px;
  box-shadow: var(--shadow-soft);
}

blockquote {
  margin: 0 0 1.5rem;
  padding: 1.5rem 2rem;
  background: var(--color-light);
  border-left: 5px solid var(--color-accent);
  border-radius: 16px;
  font-size: 1.05rem;
  color: var(--color-dark);
}

blockquote cite {
  display: block;
  margin-top: 1rem;
  font-weight: 600;
  color: var(--color-mid);
}

.case-study__cta {
  display: inline-block;
  margin-top: 0.5rem;
  font-weight: 600;
  color: var(--color-accent);
}

.case-study__cta:hover {
  text-decoration: underline;
}

.services {
  background: #fff;
}

.services__intro {
  max-width: 720px;
  margin: 0 auto 3rem auto;
  text-align: center;
}

.services__intro h2 {
  margin: 0 0 1rem;
  font-size: clamp(2.1rem, 3.8vw, 2.7rem);
  color: var(--color-muted-heading);
  font-weight: 600;
}

.services__intro p {
  margin: 0;
  font-size: 1.1rem;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.75rem;
}

.service-card {
  background: #e1e9f4;
  border-radius: 20px;
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 1rem;
  text-align: left;
}

.service-card h3 {
  margin: 0;
  font-size: 1.25rem;
  color: var(--color-muted-heading);
  font-weight: 700;
}

.service-card p {
  margin: 0;
  font-size: 1rem;
}

.services__cta {
  margin-top: 3.5rem;
  text-align: center;
}

.site-footer {
  background: var(--color-mid);
  color: #fff;
  padding: 2rem 0;
  text-align: center;
  font-size: 0.95rem;
}

@media (max-width: 1024px) {
  .hero__layout,
  .process__layout,
  .case-study,
  .services__grid {
    grid-template-columns: 1fr;
  }

  .hero__media,
  .case-study__media {
    order: -1;
  }

  .case-study--reverse {
    direction: ltr;
  }

  .services__grid {
    gap: 1.5rem;
  }
}

@media (max-width: 640px) {
  .site-header__inner {
    flex-direction: column;
    gap: 1rem;
  }

  .site-nav {
    flex-direction: column;
  }

  .brand img {
    width: 182px;
  }

  .hero {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .section {
    padding: 4rem 0;
  }

  .case-studies__heading {
    margin-bottom: 2.5rem;
  }

  .case-study {
    margin-bottom: 3rem;
  }

  blockquote {
    padding: 1.25rem 1.5rem;
  }

  .services__intro {
    margin-bottom: 2.5rem;
  }

  .services__grid {
    grid-template-columns: 1fr;
  }
}