:root {
  --paper: #f7f7f2;
  --ink: #171816;
  --muted: #5f625a;
  --line: #b9bcb2;
  --soft-line: #d9dbd3;
  --surface: #ffffff;
  --accent: #166534;
  --accent-soft: #dff0dc;

  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 24px;
  --space-lg: 32px;
  --space-xl: 56px;
  --space-2xl: 72px;

  --shadow: 6px 6px 0 var(--ink);
  --page-width: 1120px;

  color-scheme: light dark;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Sans', sans-serif;
  line-height: 1.55;
}

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

header,
main,
footer {
  max-width: var(--page-width);
  margin-inline: auto;
  padding-inline: 20px;
}

section {
  padding-block: var(--space-xl);
  border-top: 1px solid var(--line);
}

header {
  padding-top: var(--space-lg);
}

header nav {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
}

header nav a {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(250px, 0.55fr);
  gap: var(--space-xl);
  align-items: end;
  padding: 32px 0 88px;
}

h1 {
  font-size: clamp(40px, 6.5vw, 88px);
  font-weight: 500;
  line-height: 0.93;
  letter-spacing: -0.065em;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.hero-copy {
  font-size: 1.08rem;
  color: var(--muted);
  margin: 0;
  padding: 18px 0 4px;
  border-top: 2px solid var(--ink);
}

.hero-copy strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  font-weight: 500;
}

.section-head {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 30px;
  align-items: start;
  margin-bottom: 42px;
}

.contact {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 30px;
  padding-bottom: 18px;
}

.section-number {
  margin: 4px 0 0;
  color: var(--muted);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
}

h2 {
  margin: 0;
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
}

.projects {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 28px;
}

.project {
  grid-column: span 6;
  display: flex;
  flex-direction: column;
  min-height: 390px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow);
}

.project:first-child {
  grid-column: span 7;
  min-height: 440px;
}

.project:nth-child(2) {
  grid-column: span 5;
  margin-top: 68px;
}

.project:nth-child(3) {
  grid-column: 4 / span 7;
  min-height: 360px;
}

.project-index {
  margin: 0 0 auto;
  color: var(--muted);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
}

.project h3 {
  margin: 76px 0 12px;
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.project p {
  max-width: 46ch;
  margin: 0 0 24px;
  color: var(--muted);
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 26px;
  margin: 0 0 24px;
}

.project-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  color: var(--ink);
  text-underline-offset: 5px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 18px 0 0;
  border-top: 1px dashed var(--line);
  list-style: none;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
}

.project-tags li {
  padding: 5px 8px;
  background: var(--accent-soft);
  color: var(--accent);
}

.profile-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.7fr);
  gap: 80px;
  margin-left: 170px;
}

.profile-grid p {
  margin: 0;
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  line-height: 1.35;
}

.skills h3 {
  margin: 3px 0 18px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  font-weight: 500;
}

.skills ul {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.skills li {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--space-md);
}

.contact-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--ink);
  color: var(--ink);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  text-decoration: none;
}

.contact-link.primary {
  background: var(--ink);
  color: var(--paper);
}

.footer {
  margin-top: var(--space-2xl);
  color: var(--muted);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
}

.footer p {
  border-top: 1px solid var(--line);
  padding-block: 28px;
  margin: 0;
}

@media (max-width: 760px) {
  header,
  main,
  footer {
    padding-inline: 14px;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    padding: 24px 0 64px;
  }

  section {
    padding-block: var(--space-xl);
  }

  .section-head,
  .contact {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .section-head {
    margin-bottom: 28px;
  }

  .projects {
    gap: 24px;
  }

  .project,
  .project:first-child,
  .project:nth-child(2),
  .project:nth-child(3) {
    grid-column: 1 / -1;
    min-height: 320px;
    margin-top: 0;
  }

  .profile-grid {
    grid-template-columns: 1fr;
    gap: 42px;
    margin-left: 0;
  }

  .skills li:last-child {
    border-bottom: none;
  }
}

@media (max-width: 420px) {
  .project {
    box-shadow: 4px 4px 0 var(--ink);
  }

  .contact-link {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #111310;
    --ink: #f0f1eb;
    --muted: #b5b8ae;
    --line: #676b61;
    --soft-line: #34372f;
    --surface: #191c17;
    --accent: #9bd58f;
    --accent-soft: #243c25;
    --shadow: 6px 6px 0 var(--accent);
  }
}

@media (hover: hover) {
  header nav a:hover,
  .project-links a:hover,
  .contact-link:hover {
    color: var(--accent);
  }

  .contact-link.primary:hover {
    background-color: var(--accent);
    color: var(--paper);
  }
}