:root {
  --bg: #f5f5f3;
  --surface: #ffffff;
  --text: #111111;
  --muted: #565656;
  --line: #dddddd;
  --line-strong: #111111;
  --max: 1080px;
  --radius-soft: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(245, 245, 243, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(0.5px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.brand {
  text-decoration: none;
  color: inherit;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.brand-text {
  font-size: 0.95rem;
  font-weight: 700;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
  padding: 0.4rem 0.7rem;
}

.site-nav {
  display: flex;
  gap: 1.2rem;
}

.site-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

.hero {
  padding-top: 6rem;
  padding-bottom: 4rem;
}

.kicker {
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  margin: 0.8rem 0 1rem;
  max-width: 15ch;
  font-size: clamp(2rem, 5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero-copy {
  margin: 0;
  max-width: 64ch;
  color: var(--muted);
}

.hero-actions {
  margin-top: 1.8rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  text-decoration: none;
  color: var(--surface);
  background: var(--text);
  border: 1px solid var(--text);
  border-radius: 8px;
  padding: 0.65rem 1rem;
  font-size: 0.9rem;
  font-weight: 700;
}

.button-secondary {
  color: var(--text);
  background: var(--surface);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.hero-meta {
  margin: 1.8rem 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 520ms ease, transform 520ms ease;
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.section {
  padding: 3.5rem 0;
  border-top: 1px solid var(--line);
}

.section[id] {
  scroll-margin-top: 96px;
}

h2 {
  font-size: clamp(1.25rem, 2.8vw, 2.2rem);
  margin: 0 0 1.2rem;
}

p {
  margin: 0;
}

.chips {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chips span {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.35rem 0.6rem;
  font-size: 0.82rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.project-grid {
  align-items: stretch;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-soft);
  padding: 1.2rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.project-card p {
  margin: 0;
}

.project-card a {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
}

.project-grid .project-card:last-child {
  grid-column: 1 / -1;
}

.card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.1rem;
}

.meta {
  margin-bottom: 0.8rem;
  font-family: "IBM Plex Mono", monospace;
  color: var(--muted);
  font-size: 0.78rem;
}

.card a,
.contact-grid a {
  color: var(--text);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.timeline {
  display: grid;
  gap: 1.25rem;
}

.timeline article {
  border-left: 2px solid var(--line-strong);
  padding-left: 0.9rem;
}

.timeline h3 {
  margin: 0 0 0.35rem;
}

.list {
  padding-left: 1rem;
  margin: 0;
  display: grid;
  gap: 0.7rem;
}

.contact-grid {
  display: grid;
  gap: 0.8rem;
  font-size: 1.05rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  width: fit-content;
}

.contact-icon {
  width: 1rem;
  height: 1rem;
  fill: currentColor;
  flex-shrink: 0;
}

.small-note {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 3.5rem;
}

.footer-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.9rem;
}

.footer-inner a,
.back-to-top {
  color: var(--text);
}

.back-to-top {
  border: 0;
  background: transparent;
  padding: 0;
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 0.22em;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 840px) {
  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    right: 0;
    left: 0;
    border-bottom: 1px solid var(--line);
    border-top: 1px solid var(--line);
    background: var(--bg);
    display: none;
    padding: 0.85rem 1.25rem;
    flex-direction: column;
    gap: 0.75rem;
  }

  .site-nav.is-open {
    display: flex;
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  .project-grid .project-card:last-child {
    grid-column: auto;
  }

  .hero {
    padding-top: 4.2rem;
  }
}