/* =============================================
   CSS Custom Properties & Reset
   ============================================= */
:root {
  --bg: #faf8f5;
  --surface: #ffffff;
  --text: #1a1a1a;
  --text-secondary: #5c5c5c;
  --text-muted: #6b6863;
  --accent: #b8860b;
  --accent-warm: #c4956a;
  --accent-dim: rgba(184,134,11,0.08);
  --border: #e8e4df;
  --code-bg: #f0ede8;
  --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  --max-width: 1100px;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --radius: 4px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 17px;
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  background-position: -1px -1px;
  line-height: 1.7;
}

::selection {
  background: rgba(184,134,11,0.2);
  color: var(--text);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* =============================================
   Navigation
   ============================================= */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}
.nav.scrolled {
  background: rgba(250,248,245,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
  padding: 0.8rem 2rem;
}
.nav-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
  text-decoration: none;
}
.nav-dots {
  display: flex;
  gap: 0.65rem;
  align-items: center;
}
.nav-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border);
  border: none;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  padding: 10px;
  margin: -10px;
  position: relative;
}
.nav-dot:hover { background: var(--accent-warm); transform: scale(1.3); }
.nav-dot.active {
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(184,134,11,0.15);
}
.nav-dot-label {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-secondary);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.nav-dot:hover .nav-dot-label,
.nav-dot.active .nav-dot-label { opacity: 1; }

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

section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--accent-warm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-xl);
  line-height: 1.15;
}

/* =============================================
   Divider Ornament
   ============================================= */
.ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin: var(--space-2xl) 0;
  color: var(--border);
}
.ornament::before, .ornament::after {
  content: '';
  height: 1px;
  width: 60px;
  background: var(--border);
}
.ornament-diamond {
  font-size: 0.5rem;
  color: var(--accent-warm);
  opacity: 0.5;
}

/* =============================================
   Hero
   ============================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 4rem;
}
.hero-inner {
  max-width: 720px;
}
.hero-geometric {
  display: flex;
  justify-content: center;
  gap: 2px;
  margin-bottom: var(--space-2xl);
  opacity: 0.2;
}
.hero-geometric span {
  width: 1px;
  height: 40px;
  background: var(--accent);
}
.hero-geometric span:nth-child(odd) { height: 30px; }
.hero-geometric span:nth-child(3n) { height: 48px; }
.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}
.hero-subtitle {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}
.hero-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--accent-warm);
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}
.hero-currently {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  letter-spacing: 0.02em;
}
.hero-rule {
  width: 60px;
  height: 1px;
  background: var(--accent);
  margin: 0 auto var(--space-xl);
  position: relative;
}
.hero-rule::after {
  content: '◆';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.35rem;
  color: var(--accent);
  background: var(--bg);
  padding: 0 8px;
}
.hero-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-meta a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
  border-bottom: 1px solid transparent;
}
.hero-meta a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.hero-meta-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--border);
}

/* =============================================
   Fade Reveal Animation
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================
   About
   ============================================= */
.summary-text {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-style: italic;
  line-height: 1.85;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto var(--space-md);
  text-align: left;
  position: relative;
  padding-left: var(--space-xl);
  border-left: 2px solid var(--accent-warm);
}
.about-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}
.about-stat {
  text-align: center;
  padding: var(--space-lg) var(--space-xl);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 160px;
  transition: border-color 0.3s ease;
}
.about-stat:hover { border-color: var(--accent-warm); }
.about-stat-number {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
  margin-bottom: 0.3rem;
}
.about-stat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* =============================================
   Experience / Timeline
   ============================================= */
.timeline {
  position: relative;
  padding-left: var(--space-2xl);
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-warm), var(--border));
}
.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
}
.timeline-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
}
.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-2xl) - 5px);
  top: 0.5rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent);
}
.timeline-item:nth-child(2) .timeline-dot {
  background: var(--accent-warm);
  box-shadow: 0 0 0 2px var(--accent-warm);
}
.timeline-item:nth-child(3) .timeline-dot {
  background: #a0a0a0;
  box-shadow: 0 0 0 2px #a0a0a0;
}
.timeline-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-xl);
  transition: box-shadow 0.3s ease;
}
.timeline-content:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}
.exp-company {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.exp-company-location {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-muted);
}
.exp-role {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent-warm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.exp-dates {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}
.exp-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.exp-bullets li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary);
}
.exp-bullets li::before {
  content: '◆';
  position: absolute;
  left: 0;
  top: 0;
  font-size: 0.4rem;
  color: var(--accent-warm);
  line-height: 1.7;
}

/* =============================================
   Expertise
   ============================================= */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.expertise-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-top-color 0.3s ease;
}
.expertise-card:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,0.05);
  transform: translateY(-2px);
}
.expertise-card:nth-child(1) { border-top-color: var(--accent); }
.expertise-card:nth-child(2) { border-top-color: var(--accent-warm); }
.expertise-card:nth-child(3) { border-top-color: var(--accent); }
.expertise-card:nth-child(4) { border-top-color: var(--accent-warm); }
.expertise-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-sm);
}
.expertise-desc {
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* =============================================
   Projects
   ============================================= */
.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-xl);
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-top-color 0.3s ease;
}
.project-card:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,0.05);
  transform: translateY(-2px);
}
.project-card:nth-child(1) { border-top-color: var(--accent); }
.project-card:nth-child(2) { border-top-color: var(--accent-warm); }
.project-card:nth-child(3) { border-top-color: var(--accent); }
.project-card:nth-child(4) { border-top-color: var(--accent-warm); }
.project-card:nth-child(5) { border-top-color: #a0a0a0; }
.project-name {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.2rem;
}
.project-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}
.project-desc {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.project-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-warm);
  background: var(--accent-dim);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius);
  border: 1px solid rgba(184,134,11,0.15);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.project-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* =============================================
   Education
   ============================================= */
.edu-list {
  display: flex;
  flex-direction: column;
}
.edu-item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.edu-item:last-child { border-bottom: none; }
.edu-degree {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}
.edu-honors {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  margin-top: 0.2rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.edu-institution {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}
.edu-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}
.edu-details {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.edu-details strong { color: var(--text); font-weight: 500; }

/* =============================================
   Skills / Toolkit
   ============================================= */
.toolkit-intro {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
.skill-category {
  margin-bottom: var(--space-md);
}
.skill-category-name {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--accent-warm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  background: var(--code-bg);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.skill-tag:hover {
  border-color: var(--accent-warm);
  color: var(--text);
}

/* =============================================
   Awards
   ============================================= */
.awards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
.award-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: var(--space-xl);
  position: relative;
}
.award-card:nth-child(2) { border-left-color: var(--accent-warm); }
.award-card::before {
  content: '\201C';
  position: absolute;
  top: 10px;
  right: 20px;
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--border);
  line-height: 1;
  pointer-events: none;
}
.award-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.2rem;
}
.award-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}
.award-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* =============================================
   Contact
   ============================================= */
.contact-section {
  text-align: center;
  padding: var(--space-2xl) 0;
  background: linear-gradient(180deg, transparent 0%, var(--accent-dim) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.contact-heading {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-sm);
  line-height: 1.15;
}
.contact-subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.contact-links {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.contact-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  text-decoration: none;
  background: var(--surface);
  border: 1px solid var(--accent-warm);
  border-radius: var(--radius);
  padding: 0.6rem 1.5rem;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.contact-btn:hover {
  background: var(--accent-warm);
  color: #fff;
  border-color: var(--accent-warm);
}

/* =============================================
   Footer
   ============================================= */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-2xl) 0;
  text-align: center;
}
.footer-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-sm);
}
.footer-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin: var(--space-md) 0;
}
.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
  border-bottom: 1px solid transparent;
}
.footer-links a:hover { color: var(--accent); border-bottom-color: var(--accent-warm); }
.footer-note {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-md);
}

/* =============================================
   Print
   ============================================= */
@media print {
  .nav, .nav-dots { display: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
  body { background: white; font-size: 12px; }
  .container { max-width: 100%; }
  section { padding: 1.5rem 0; page-break-inside: avoid; }
  .hero { min-height: auto; padding: 2rem 0; }
  .hero-geometric { display: none; }
  .hero-name { font-size: 1.8rem; }
  .expertise-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
  .expertise-card { box-shadow: none; border: 1px solid #ccc; padding: 0.75rem; }
  .timeline { padding-left: 1.5rem; }
  .timeline::before { display: none; }
  .timeline-dot { display: none; }
  .timeline-content { box-shadow: none; border: 1px solid #ccc; padding: 0.75rem; }
  .project-card { box-shadow: none; border: 1px solid #ccc; }
  .project-grid, .skills-grid, .awards-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .contact-section { background: none; }
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 1024px) {
  .container { padding: 0 1.5rem; }
  .expertise-grid { grid-template-columns: 1fr 1fr; }
  .edu-item { grid-template-columns: 1fr 1.5fr; gap: var(--space-lg); }
  .about-stats { gap: var(--space-md); }
}
@media (max-width: 768px) {
  html { font-size: 16px; }
  .nav { padding: 1rem 1.25rem; }
  .nav.scrolled { padding: 0.6rem 1.25rem; }
  .nav-name { font-size: 0.95rem; }
  .container { padding: 0 1.25rem; }
  section { padding: var(--space-2xl) 0; }
  .hero-name { font-size: clamp(1.8rem, 7vw, 2.6rem); }
  .hero-subtitle { font-size: 0.82rem; }
  .hero-tagline { font-size: 1rem; }
  .hero-currently { font-size: 0.75rem; }
  .summary-text { font-size: 1rem; padding-left: var(--space-md); }
  .expertise-grid { grid-template-columns: 1fr; }
  .timeline { padding-left: var(--space-lg); }
  .timeline-dot { left: calc(-1 * var(--space-lg) - 5px); }
  .project-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .awards-grid { grid-template-columns: 1fr; }
  .edu-item { grid-template-columns: 1fr; gap: var(--space-sm); }
  .about-stats { flex-direction: column; align-items: center; }
  .about-stat { min-width: auto; width: 100%; max-width: 280px; }
  .contact-heading { font-size: 1.5rem; }
  .contact-subtitle { font-size: 0.9rem; }
  .section-title { font-size: 1.6rem; }
}

@media (max-width: 480px) {
  .nav-dots { gap: 0.5rem; }
  .nav-dot { width: 6px; height: 6px; }
}