/* ------------------------------
   Design Tokens
--------------------------------*/
:root {
  --bg: #fafaf8;
  --text: #0f0f0e;
  --muted: #666660;
  --border: #e4e4e0;
  --tag-bg: #efefec;
  --tag-text: #333330;
  --accent: #0f0f0e;
  --nav-height: 56px;
}

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

/* ------------------------------
   Base
--------------------------------*/
html {
  scroll-behavior: smooth;
}

body {
  font-family: "Syne", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ------------------------------
   Nav
--------------------------------*/
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: rgba(250, 250, 248, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-name {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted);
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--text);
}

/* ------------------------------
   Layout
--------------------------------*/
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ------------------------------
   Hero
--------------------------------*/
.hero {
  padding: 6rem 0 5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 5rem;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.hero-name {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 1.75rem;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 2rem;
  max-width: 52ch;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.hero-links a {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color 0.15s, border-color 0.15s;
}

.hero-links a:hover {
  color: var(--text);
  border-bottom-color: var(--text);
}

/* ------------------------------
   Content Sections
--------------------------------*/
.content-section {
  margin-bottom: 5rem;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: 2.5rem;
}

.section-sub {
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: -1.75rem;
  margin-bottom: 2rem;
}

/* ------------------------------
   Project Items
--------------------------------*/
.project-item {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
}

.project-item:first-of-type {
  border-top: 1px solid var(--border);
}

.project-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.65rem;
  flex-wrap: wrap;
}

.project-header h3 {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.3;
}

.project-header h3 a {
  transition: opacity 0.15s;
}

.project-header h3 a:hover {
  opacity: 0.6;
}

.project-meta {
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.project-item > p {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 1rem;
  max-width: 60ch;
  line-height: 1.6;
}

.project-links {
  margin-top: 1rem;
  display: flex;
  gap: 1.25rem;
}

.project-links a {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: border-color 0.15s;
}

.project-links a:hover {
  border-bottom-color: var(--text);
}

/* ------------------------------
   Tags
--------------------------------*/
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tags span {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--tag-text);
  background: var(--tag-bg);
  padding: 0.25rem 0.6rem;
  border-radius: 3px;
}

/* ------------------------------
   Building Grid
--------------------------------*/
.building-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.building-item {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  transition: background 0.15s;
}

.building-item:hover {
  background: #f4f4f1;
}

.building-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.building-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
}

.building-item h4 a {
  transition: opacity 0.15s;
}

.building-item h4 a:hover {
  opacity: 0.6;
}

.building-year {
  font-size: 0.7rem;
  color: var(--muted);
  white-space: nowrap;
}

.building-item > p {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 0.75rem;
}

/* ------------------------------
   About
--------------------------------*/
.about-text {
  font-size: 1rem;
  color: var(--muted);
  line-height: 1.75;
  max-width: 58ch;
  margin-bottom: 1rem;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.5rem;
}

.about-tags span {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--tag-text);
  background: var(--tag-bg);
  padding: 0.25rem 0.6rem;
  border-radius: 3px;
}

/* ------------------------------
   Footer
--------------------------------*/
.site-footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 2rem 4rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer p {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.01em;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color 0.15s;
}

.footer-links a:hover {
  color: var(--text);
}

/* ------------------------------
   Animations
--------------------------------*/
@media (prefers-reduced-motion: no-preference) {
  .hero-eyebrow,
  .hero-name,
  .hero-bio,
  .hero-links {
    opacity: 0;
    transform: translateY(14px);
    animation: fadeUp 0.55s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  }

  .hero-eyebrow { animation-delay: 0.05s; }
  .hero-name    { animation-delay: 0.12s; }
  .hero-bio     { animation-delay: 0.2s; }
  .hero-links   { animation-delay: 0.28s; }

  @keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
  }
}

/* ------------------------------
   Responsive
--------------------------------*/
@media (max-width: 640px) {
  .site-nav {
    padding: 0 1.25rem;
  }

  .nav-links {
    gap: 1.25rem;
  }

  main {
    padding: 0 1.25rem;
  }

  .hero {
    padding: 3.5rem 0 3rem;
  }

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

  .site-footer {
    padding: 2rem 1.25rem 3rem;
    flex-direction: column;
    align-items: flex-start;
  }
}