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

:root {
  --bg:        #0D0D0D;
  --surface:   #161616;
  --border:    #252525;
  --text:      #F0EDE6;
  --muted:     #777;
  --accent:    #4A9EFF;
  --accent-dim:#1a3d66;
  --serif:     'Instrument Serif', Georgia, serif;
  --mono:      'Consolas', 'Courier New', monospace;
  --sans:      'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Nav ────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2.5rem;
  background: rgba(13,13,13,0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  display: block;
  padding: 0.38rem 0.9rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  border-radius: 3px;
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.04); }

/* Projects nav CTA pill */
.nav-links .nav-cta a {
  background: var(--accent);
  color: #fff;
  border-radius: 3px;
  padding: 0.38rem 0.9rem;
}

.nav-links .nav-cta a:hover {
  background: #3b8fe0;
  color: #fff;
}

/* ── Hero ───────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 7rem 2.5rem 3rem;
  max-width: 900px;
}

.hero-wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1.0;
  margin-bottom: 0.1rem;
}

.hero-stack {
  font-family: var(--mono);
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 400;
  color: var(--accent);
  letter-spacing: -0.01em;
}

.hero-by {
  font-family: var(--sans);
  font-size: clamp(0.65rem, 1.2vw, 0.85rem);
  font-weight: 300;
  color: var(--muted);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin: 0.35rem 0 0.15rem 0.2rem;
}

.hero-name {
  font-family: var(--serif);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 400;
  color: var(--text);
  letter-spacing: -0.02em;
}

.cursor {
  display: inline-block;
  width: 3px;
  height: 0.82em;
  background: var(--accent);
  margin-left: 5px;
  vertical-align: middle;
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.hero-tagline {
  font-family: var(--serif);
  font-size: clamp(1rem, 2.2vw, 1.3rem);
  font-style: italic;
  color: var(--muted);
  margin-top: 1.75rem;
  max-width: 460px;
  line-height: 1.55;
}

.hero-cta {
  display: flex;
  gap: 0.85rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

/* ── Buttons ────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.6rem 1.3rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  border-radius: 3px;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: transparent;
  color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: #444;
  color: var(--text);
}

/* ── Section base ───────────────────────────── */
section {
  padding: 4rem 2.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.65rem;
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: 1.75rem;
  letter-spacing: -0.01em;
}

hr.section-rule {
  border: none;
  border-top: 1px solid var(--border);
  margin-bottom: 2rem;
}

/* "See more" row */
.section-more {
  margin-top: 2rem;
  display: flex;
  justify-content: flex-start;
}

.see-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 0.5rem 1.1rem;
  border-radius: 3px;
  transition: background 0.2s, color 0.2s;
}

.see-more:hover {
  background: var(--accent-dim);
  color: #fff;
}

/* ── About (index preview) ───────────────────── */
#about .about-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 4rem;
  align-items: start;
}

.about-bio p {
  color: #aaa;
  line-height: 1.85;
  font-size: 0.95rem;
}

.about-bio p + p { margin-top: 0.9rem; }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1.1rem;
  border-radius: 3px;
  transition: border-color 0.2s;
}

.stat:hover { border-color: #3a3a3a; }

.stat-value {
  font-family: var(--serif);
  font-size: 1.8rem;
  color: var(--text);
  line-height: 1;
}

.stat-label {
  font-size: 0.65rem;
  color: var(--muted);
  margin-top: 0.3rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── Projects grid (shared index + page) ─────── */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.project-card:hover { border-color: #2e2e2e; transform: translateY(-2px); }
.project-card:hover::before { transform: scaleX(1); }

.project-tag {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.18rem 0.5rem;
  border-radius: 2px;
  margin-bottom: 0.85rem;
}

.project-title {
  font-family: var(--serif);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  line-height: 1.25;
}

.project-desc {
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.65;
}

.tech-stack {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.tech {
  font-size: 0.6rem;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.12rem 0.4rem;
  border-radius: 2px;
  letter-spacing: 0.04em;
}

.project-footer {
  margin-top: 1.1rem;
  display: flex;
  gap: 1rem;
  align-items: center;
}

.project-link {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
  transition: opacity 0.2s;
}

.project-link:hover { opacity: 0.65; }

/* ── Projects page: detail card ──────────────── */
.project-detail {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2.5rem;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.2s;
}

.project-detail::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
}

.project-detail:hover { border-color: #2e2e2e; }

.project-detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.project-detail-meta { flex: 1; }

.project-detail-links {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

.project-detail-title {
  font-family: var(--serif);
  font-size: 1.6rem;
  margin: 0.5rem 0 0.3rem;
  line-height: 1.2;
}

.project-detail-body {
  font-size: 0.9rem;
  color: #aaa;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.project-detail-body p + p { margin-top: 0.85rem; }

.project-detail-section {
  margin-top: 1.25rem;
}

.project-detail-section-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

/* ── Posts ──────────────────────────────────── */
.posts-list { display: flex; flex-direction: column; }

.post-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 1.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}

.post-item:first-child { border-top: 1px solid var(--border); }

.post-date {
  font-size: 0.67rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  line-height: 1.5;
  padding-top: 0.15rem;
}

.post-category {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.post-title {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 0.35rem;
  transition: color 0.2s;
}

.post-item:hover .post-title { color: var(--accent); }

.post-excerpt {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── About page (CV) ─────────────────────────── */
.cv-hero {
  padding: 7rem 2.5rem 3rem;
  max-width: 900px;
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
}

.cv-name {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.cv-title {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.cv-summary {
  font-size: 0.95rem;
  color: #aaa;
  max-width: 560px;
  line-height: 1.8;
}

.cv-contact {
  display: flex;
  gap: 1.5rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.cv-contact a {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: color 0.2s, border-color 0.2s;
}

.cv-contact a:hover { color: var(--accent); border-color: var(--accent); }

.cv-body {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2.5rem 5rem;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 4rem;
  margin-top: 3rem;
}

.cv-main {}
.cv-sidebar {}

.cv-section { margin-bottom: 3rem; }

.cv-section-title {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}

/* Experience entries */
.cv-entry { margin-bottom: 1.75rem; }
.cv-entry:last-child { margin-bottom: 0; }

.cv-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.2rem;
}

.cv-entry-title {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--text);
}

.cv-entry-date {
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  white-space: nowrap;
  flex-shrink: 0;
}

.cv-entry-org {
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.cv-entry-desc {
  font-size: 0.85rem;
  color: #999;
  line-height: 1.75;
}

/* Skills */
.skill-group { margin-bottom: 1.25rem; }

.skill-group-name {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.skill-tag {
  font-size: 0.72rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.2rem 0.55rem;
  border-radius: 3px;
}

/* ── Page hero (projects page) ───────────────── */
.page-hero {
  padding: 7rem 2.5rem 3rem;
  max-width: 900px;
  margin: 0 auto;
}

.page-hero-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.page-hero-title {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin-bottom: 1rem;
}

.page-hero-sub {
  font-size: 0.9rem;
  color: var(--muted);
  max-width: 480px;
  line-height: 1.7;
}

.page-body {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2.5rem 5rem;
}

/* ── Back link ───────────────────────────────── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s;
  margin-bottom: 3rem;
}

.back-link:hover { color: var(--text); }

/* ── Footer ─────────────────────────────────── */
footer {
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 2.5rem 3rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-name {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

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

.footer-links a {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}

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

/* ── Fade-in ────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ─────────────────────────────── */
@media (max-width: 700px) {
  nav { padding: 0.85rem 1.25rem; }
  .nav-links { gap: 0; }
  .nav-links a { padding: 0.32rem 0.6rem; font-size: 0.68rem; }
  section { padding: 3rem 1.25rem; }
  #hero { padding: 6rem 1.25rem 2.5rem; }
  #about .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .post-item { grid-template-columns: 1fr; gap: 0.35rem; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
  .cv-body { grid-template-columns: 1fr; gap: 0; }
  .cv-hero, .page-hero { padding: 6rem 1.25rem 2.5rem; }
  .page-body, .cv-body { padding-left: 1.25rem; padding-right: 1.25rem; }
}

@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1; transform: none; transition: none; }
  .cursor { animation: none; }
}