:root {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, sans-serif;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --color-text: #333;
  --color-heading: #111;
  --color-link: #0066cc;
  --color-link-hover: #093969;
}

*,
*::before,
*::after {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  line-height: 1.6;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

main {
  flex: 1;
  margin-bottom: var(--spacing-xl);
}

.profile {
  display: flex;
  flex-direction: column;
}

.content {
  max-width: 65ch;
}

h1 {
  font-size: clamp(1.6rem, 2.5vw, 2rem);
  margin-bottom: var(--spacing-lg);
  font-weight: 700;
  color: var(--color-heading);
}

.content > * + * {
  margin-top: var(--spacing-md);
}

p {
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.25rem);
  line-height: 1.6;
}

.profile-pic {
  max-width: 400px;
  margin-bottom: var(--spacing-lg);
}

.profile-pic img {
  width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

.links a {
  text-decoration: none;
  font-weight: 500;
  font-size: clamp(1.2rem, 1.1rem + 0.5vw, 1.5rem);
  color: var(--color-link);
  transition: color 0.2s ease;
}

.links a:hover,
.links a:focus-visible {
  color: var(--color-link-hover);
  text-decoration: underline;
}

.links a:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
  border-radius: 2px;
}

.links a .arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

.links a:hover .arrow {
  transform: rotate(45deg);
}

p a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

p a:hover,
p a:focus-visible {
  color: var(--color-link-hover);
  text-decoration-thickness: 2px;
}

p a:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
  border-radius: 2px;
}

footer {
  padding-top: var(--spacing-lg);
  color: #666;
}

.announcement {
  background: #e3f2fd;
  border: 1px solid #90caf9;
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: var(--spacing-lg);
}

.announcement p {
  font-size: clamp(0.95rem, 0.9rem + 0.25vw, 1.1rem);
  line-height: 1.6;
}

.announcement a {
  color: var(--color-link);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.announcement a:hover {
  color: var(--color-link-hover);
  text-decoration-thickness: 2px;
}

@media (min-width: 640px) {
  .profile {
    flex-direction: row;
    gap: 4rem;
    align-items: flex-start;
  }

  .profile-pic {
    flex-shrink: 0;
    margin-top: 5.5rem;
    margin-bottom: 0;
    max-width: 200px;
  }

  .profile-pic img {
    border-radius: 50%;
    object-fit: cover;
    aspect-ratio: 1 / 1;
    transform: scale(1.15);
    transform-origin: center;
  }

  footer {
    margin-left: calc(200px + 4rem);
  }
}

@media (min-width: 768px) {
  body {
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .content > * + * {
    margin-top: var(--spacing-lg);
  }
}

/* Desktop */
@media (min-width: 1024px) {
  /* body {
    padding: 4rem var(--spacing-xl);
  } */

  .profile-pic {
    margin-top: 6rem;
  }
}

/* Small mobile optimization */
@media (max-width: 480px) {
  body {
    padding: var(--spacing-md);
  }

  h1 {
    margin-bottom: var(--spacing-md);
  }
}