/* === DESIGN TOKENS === */
:root {
  --ink: #1a1814;
  --ink-secondary: #4a453e;
  --ink-muted: #8a837a;
  --ink-faint: #c5bfb8;
  --paper: #faf8f5;
  --paper-tinted: #f2ede6;
  --paper-warm: #ede8e0;
  --accent: #7c3b1e;
  --accent-light: #b05e3a;
  --accent-pale: #f0e4da;
  --rule: #d8d0c6;
  --rule-light: #e8e2d8;

  --font-serif: 'EB Garamond', Georgia, serif;
  --font-sans: 'Instrument Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', 'Courier New', monospace;

  --container: 1160px;
  --nav-h: 64px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* === LAYOUT === */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

/* === NAVIGATION === */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease-in-out), box-shadow 0.3s var(--ease-in-out);
}
.nav.scrolled {
  border-bottom-color: var(--rule);
  box-shadow: 0 1px 0 var(--rule-light);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}
.nav-links a {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  padding: 0.4rem 1rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--ink) !important;
  transition: background 0.2s, border-color 0.2s !important;
}
.nav-cta:hover {
  background: var(--paper-warm);
  border-color: var(--ink-faint);
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease-out), opacity 0.2s;
}

/* === MOBILE MENU === */
.mobile-menu {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  z-index: 99;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  padding: 1.5rem 2rem;
  transform: translateY(-110%);
  transition: transform 0.35s var(--ease-out);
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu ul { display: flex; flex-direction: column; gap: 0; }
.mobile-menu a {
  display: block;
  padding: 0.85rem 0;
  font-size: 1.1rem;
  font-family: var(--font-serif);
  color: var(--ink-secondary);
  border-bottom: 1px solid var(--rule-light);
  transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--accent); }

/* === HERO === */
.hero {
  min-height: 100vh;
  padding-top: var(--nav-h);
  display: flex;
  align-items: center;
  background: var(--paper);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 45%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, var(--paper-tinted) 100%);
  pointer-events: none;
}
.hero-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 5rem 2rem;
  display: grid;
  grid-template-columns: 1fr 380px;
  grid-template-rows: auto 1fr auto;
  gap: 0 4rem;
  width: 100%;
  align-items: center;
  position: relative;
}
.hero-rule-top {
  grid-column: 1 / -1;
  height: 1px;
  background: var(--rule);
  margin-bottom: 3rem;
}
.hero-rule-bottom {
  grid-column: 1 / -1;
  height: 1px;
  background: var(--rule);
  margin-top: 3rem;
}
.hero-content { align-self: center; }
.hero-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) 0.1s forwards;
}
.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 1.75rem;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) 0.2s forwards;
}
.hero-bio {
  font-size: 1.0625rem;
  color: var(--ink-secondary);
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 2.25rem;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) 0.3s forwards;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) 0.4s forwards;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.75rem;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 2px;
  transition: background 0.2s, transform 0.2s var(--ease-out);
}
.btn-primary:hover { background: var(--accent); transform: translateY(-1px); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.75rem;
  border: 1px solid var(--rule);
  color: var(--ink-secondary);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 2px;
  transition: border-color 0.2s, color 0.2s, transform 0.2s var(--ease-out);
}
.btn-ghost:hover { border-color: var(--ink-secondary); color: var(--ink); transform: translateY(-1px); }
.hero-sidebar {
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) 0.35s forwards;
}
.hero-stat-block {
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 1.5rem;
  background: rgba(255,255,255,0.6);
}
.stat {
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.stat-num {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}
.stat-divider {
  height: 1px;
  background: var(--rule-light);
  margin: 0 1.5rem;
}
.hero-domains {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.domain-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--ink-secondary);
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  padding: 0.3rem 0.65rem;
  border-radius: 2px;
}
.hero-scroll-hint {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 2.5rem;
}
.hero-scroll-hint span {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.scroll-line {
  width: 48px;
  height: 1px;
  background: var(--ink-faint);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: var(--accent);
  animation: scrollLine 2.5s ease-in-out 1s infinite;
}

/* === SECTIONS === */
.section { padding: 6rem 0; }
.section-tinted { background: var(--paper-tinted); }
.section-header {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule);
}
.section-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 400;
  color: var(--ink);
}
.section-intro {
  font-size: 1rem;
  color: var(--ink-secondary);
  max-width: 640px;
  line-height: 1.75;
  margin-bottom: 3rem;
}

/* === ABOUT === */
.about-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 4rem;
  align-items: start;
}
.portrait-placeholder {
  width: 180px;
  height: 180px;
  border-radius: 3px;
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--ink-faint);
  margin-bottom: 1.5rem;
}
.about-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.about-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8125rem;
  font-family: var(--font-sans);
  color: var(--ink-secondary);
  transition: color 0.2s;
}
.about-link:hover { color: var(--accent); }
.about-lead {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--ink);
  margin-bottom: 1.25rem;
}
.about-text p {
  color: var(--ink-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.25rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule-light);
}
.skill-group-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.6rem;
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.skill-tags span {
  font-size: 0.75rem;
  font-family: var(--font-sans);
  color: var(--ink-secondary);
  background: var(--paper-warm);
  border: 1px solid var(--rule-light);
  padding: 0.2rem 0.55rem;
  border-radius: 2px;
}

/* === TIMELINE === */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.timeline-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--rule-light);
  position: relative;
}
.timeline-item:first-child { padding-top: 0; }
.timeline-item:last-child { border-bottom: none; }
.timeline-meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding-top: 0.2rem;
}
.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.timeline-type {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.timeline-role {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.25rem;
}
.timeline-org {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  color: var(--ink-muted);
  margin-bottom: 0.9rem;
  letter-spacing: 0.02em;
}
.timeline-desc {
  color: var(--ink-secondary);
  line-height: 1.75;
  margin-bottom: 1rem;
  font-size: 0.9375rem;
}
.timeline-bullets {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}
.timeline-bullets li {
  font-size: 0.875rem;
  color: var(--ink-secondary);
  padding-left: 1rem;
  position: relative;
  line-height: 1.65;
}
.timeline-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 4px;
  height: 1px;
  background: var(--accent);
}
.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.timeline-tags span {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--accent);
  background: var(--accent-pale);
  border: 1px solid rgba(124, 59, 30, 0.15);
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
  letter-spacing: 0.03em;
}

/* === PROJECTS === */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}
.project-card {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), border-color 0.2s;
  overflow: hidden;
}
.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.07);
  border-color: var(--ink-faint);
}
.project-featured { grid-column: span 7; }
.project-card:nth-child(2) { grid-column: span 5; }
.project-card:nth-child(3) { grid-column: span 4; }
.project-card:nth-child(4) { grid-column: span 4; }
.project-open { grid-column: span 4; }

.project-card-inner { padding: 1.75rem; height: 100%; display: flex; flex-direction: column; }
.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}
.project-meta { display: flex; flex-direction: column; gap: 0.3rem; }
.project-domain {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.project-type {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  background: var(--paper-warm);
  border: 1px solid var(--rule-light);
  padding: 0.15rem 0.4rem;
  border-radius: 2px;
  display: inline-block;
  width: fit-content;
}
.project-type-open {
  color: #2d6a4f;
  background: #d8f3dc;
  border-color: rgba(45, 106, 79, 0.2);
}
.project-metric {
  text-align: right;
}
.metric-value {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1;
}
.metric-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.project-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 0.75rem;
}
.project-desc {
  font-size: 0.875rem;
  color: var(--ink-secondary);
  line-height: 1.75;
  margin-bottom: 1rem;
  flex: 1;
}
.project-highlights {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding: 0.9rem 1rem;
  background: var(--paper-tinted);
  border-radius: 3px;
  border: 1px solid var(--rule-light);
}
.highlight { display: flex; gap: 0.75rem; align-items: baseline; }
.highlight-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  min-width: 76px;
}
.highlight-val {
  font-size: 0.775rem;
  color: var(--ink-secondary);
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
  margin-top: auto;
}
.project-tags span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  color: var(--ink-secondary);
  background: var(--paper-warm);
  border: 1px solid var(--rule-light);
  padding: 0.2rem 0.45rem;
  border-radius: 2px;
}
.project-links { margin-top: 0.5rem; }
.link-note {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--ink-faint);
  letter-spacing: 0.03em;
  font-style: italic;
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  transition: gap 0.2s var(--ease-out);
}
.project-link:hover { gap: 0.6rem; }

/* === WRITING === */
.posts-list { display: flex; flex-direction: column; gap: 0; }
.post-item {
  padding: 2rem 0;
  border-bottom: 1px solid var(--rule-light);
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto auto;
  gap: 0 2rem;
  align-items: start;
}
.post-item:first-child { padding-top: 0; }
.post-meta {
  grid-column: 1;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}
.post-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-pale);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}
.post-date {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}
.post-title {
  grid-column: 1;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}
.post-item:hover .post-title { color: var(--accent); }
.post-desc {
  grid-column: 1;
  font-size: 0.875rem;
  color: var(--ink-secondary);
  line-height: 1.7;
}
.post-link-placeholder {
  grid-column: 2;
  grid-row: 1 / 4;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* === CONTACT === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 5rem;
  align-items: start;
}
.contact-lead {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  line-height: 1.65;
  color: var(--ink);
  margin-bottom: 1rem;
}
.contact-text p {
  color: var(--ink-secondary);
  line-height: 1.8;
}
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 2rem;
  background: var(--paper-tinted);
  border: 1px solid var(--rule);
  border-radius: 4px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--ink-secondary);
  transition: color 0.2s;
}
.contact-item:hover { color: var(--accent); }
.contact-location { cursor: default; }
.contact-location:hover { color: var(--ink-secondary); }

/* === FOOTER === */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--rule);
  background: var(--paper-tinted);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-name {
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  color: var(--ink-secondary);
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
}
.footer-year {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--ink-faint);
}

/* === ANIMATIONS === */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes scrollLine {
  0% { left: -100%; }
  50% { left: 0; }
  100% { left: 100%; }
}

/* Scroll-reveal base state */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; padding: 3rem 2rem; gap: 2rem; }
  .hero::before { display: none; }
  .hero-name { font-size: clamp(3rem, 10vw, 5rem); }
  .hero-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .hero-stat-block { margin-bottom: 0; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .project-featured,
  .project-card:nth-child(2),
  .project-card:nth-child(3),
  .project-card:nth-child(4),
  .project-open { grid-column: span 1; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-portrait { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
  .portrait-placeholder { margin-bottom: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .hero-grid { padding: 2rem 1.5rem; }
  .section { padding: 4rem 0; }
  .container { padding: 0 1.25rem; }
  .timeline-item { grid-template-columns: 1fr; gap: 0.5rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .hero-sidebar { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .post-item { grid-template-columns: 1fr; }
  .post-link-placeholder { grid-column: 1; grid-row: auto; margin-top: 0.5rem; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}