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

:root {
  --color-bg: #ffffff;
  --color-text: #111111;
  --color-muted: #555555;
  --color-border: #e0e0e0;
  --font-sans: 'Georgia', serif;
  --font-mono: 'Courier New', monospace;
  --max-width: 640px;
  --spacing: 2rem;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 4rem var(--spacing);
}

main {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  flex: 1;
}

/* Header */
header {
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2rem;
}

h1 {
  font-size: 2rem;
  font-weight: normal;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}

.tagline {
  color: var(--color-muted);
  font-size: 0.95rem;
  font-family: var(--font-mono);
  min-height: 1.4em;
}

/* Sections */
section {
  margin-bottom: 2.5rem;
}

section p {
  color: var(--color-text);
  font-size: 1rem;
}

h2 {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

/* Background & Interests lists */
.background ul,
.interests ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.background li,
.interests li {
  padding-left: 1rem;
  position: relative;
  color: var(--color-text);
  font-size: 1rem;
}

.background li::before,
.interests li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--color-muted);
}

.background a {
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 1px;
  transition: opacity 0.15s ease;
}

.background a:hover {
  opacity: 0.45;
}

/* Links section */
.links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.links a {
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 1px;
  transition: opacity 0.15s ease;
}

.links a:hover {
  opacity: 0.45;
}

/* Contact */
.contact a {
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 1px;
  transition: opacity 0.15s ease;
}

.contact a:hover {
  opacity: 0.45;
}

/* Footer */
footer {
  max-width: var(--max-width);
  width: 100%;
  margin: 3rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--color-muted);
}

/* Responsive */
@media (max-width: 480px) {
  body {
    padding: 2.5rem 1.25rem;
  }

  h1 {
    font-size: 1.6rem;
  }
}