:root {
  --color-primary: #1d4ed8;
  --color-primary-dark: #1e40af;
  --color-text: #1f2937;
  --color-muted: #475569;
  --color-surface: #f8fafc;
  --color-white: #ffffff;
  --font-main: Arial, sans-serif;
  --spacing-md: 1.5rem;
  --spacing-xl: 4rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--color-text);
  background-color: var(--color-surface);
  font-family: var(--font-main);
  line-height: 1.6;
}

.container {
  width: min(90%, 70rem);
  margin: 0 auto;
}

.site-header {
  color: var(--color-white);
  background-color: var(--color-primary);
}

.site-footer {
  color: var(--color-white);
  background-color: var(--color-text);
}

.navigation,
.navigation-links,
.repository-links {
  display: flex;
  align-items: center;
}

.navigation {
  justify-content: space-between;
  padding: 1rem 0;
}

.navigation-links,
.repository-links {
  gap: var(--spacing-md);
}

.navigation a {
  color: var(--color-white);
  text-decoration: none;
}

.navigation a:hover {
  text-decoration: underline;
}

.brand {
  font-size: 1.125rem;
  font-weight: 700;
}

.hero,
.repository,
.site-footer {
  padding: var(--spacing-xl) 0;
}

.hero {
  background-color: var(--color-surface);
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
  min-height: 20rem;
}

.hero-text {
  max-width: 44rem;
}

.hero-photo {
  flex: 0 0 14rem;
  width: 14rem;
  min-width: 0;
  padding: 0.75rem;
  border-radius: 50%;
  background: linear-gradient(145deg, #bfdbfe, #dbeafe);
}

.profile-photo {
  display: block;
  width: 100%;
  border-radius: 50%;
}

.hero h1 {
  max-width: 14ch;
  margin: 0.25rem 0 1rem;
  color: var(--color-primary);
  font-size: clamp(2.25rem, 7vw, 4.5rem);
}

.hero-description {
  max-width: 40rem;
  font-size: 1.125rem;
}

.button,
.repository-links a {
  display: inline-block;
  border-radius: 0.375rem;
  font-weight: 700;
  text-decoration: none;
}

.button {
  padding: 0.75rem 1.25rem;
  color: var(--color-white);
  background-color: var(--color-primary);
}

.button:hover {
  background-color: var(--color-primary-dark);
}

.about,
.skills {
  padding: var(--spacing-xl) 0;
}

.about {
  background-color: var(--color-white);
}

.about-content {
  max-width: 52rem;
}

.about h2,
.skills h2 {
  margin: 0.25rem 0 1rem;
}

.about p:not(.eyebrow) {
  color: var(--color-muted);
}

.skills {
  background-color: var(--color-surface);
}

.skill-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-md);
}

.skill-card {
  padding: var(--spacing-md);
  border: 1px solid #dbeafe;
  border-radius: 0.75rem;
  background-color: var(--color-white);
  box-shadow: 0 0.5rem 1.5rem rgb(30 64 175 / 8%);
}

.skill-card h3 {
  margin-top: 0;
  color: var(--color-primary-dark);
}

.skill-card p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.repository {
  background-color: var(--color-white);
}

.repository h2 {
  margin-top: 0.25rem;
}

.repository-links a {
  padding: 0.25rem 0;
  color: var(--color-primary);
}

.repository-links a:hover {
  color: #1e40af;
  text-decoration: underline;
}

.eyebrow {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  line-height: 1.2;
}

@media (max-width: 38rem) {
  .navigation,
  .navigation-links,
  .repository-links,
  .hero-content {
    align-items: flex-start;
    flex-direction: column;
  }

  .navigation {
    gap: 0.75rem;
  }

  .hero-content {
    gap: var(--spacing-md);
  }

  .hero-photo {
    flex-basis: auto;
    width: min(50vw, 11rem);
  }

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