:root {
      --cream: #f7f4ef;
      --cream-dark: #ede9e1;
      --ink: #1a1814;
      --ink-light: #4a453d;
      --ink-muted: #8a8278;
      --rust: #b85c38;
      --rust-light: #d4784f;
      --rust-pale: #f2e6df;
      --line: rgba(26,24,20,0.12);
      --font-serif: 'Cormorant Garamond', Georgia, serif;
      --font-sans: 'DM Sans', sans-serif;
      --font-mono: 'DM Mono', monospace;
    }

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

    html { scroll-behavior: smooth; }

    body {
      background: var(--cream);
      color: var(--ink);
      font-family: var(--font-sans);
      font-weight: 300;
      overflow-x: hidden;
      cursor: none;
    }

    /* Custom cursor */
    .cursor {
      position: fixed;
      width: 8px; height: 8px;
      background: var(--ink);
      border-radius: 50%;
      pointer-events: none;
      z-index: 9999;
      transform: translate(-50%, -50%);
      transition: width 0.2s, height 0.2s, background 0.2s;
    }
    .cursor-follower {
      position: fixed;
      width: 32px; height: 32px;
      border: 1px solid rgba(26,24,20,0.3);
      border-radius: 50%;
      pointer-events: none;
      z-index: 9998;
      transform: translate(-50%, -50%);
      transition: all 0.12s ease;
    }
    body:hover .cursor { opacity: 1; }
    a:hover ~ .cursor, button:hover ~ .cursor { width: 16px; height: 16px; background: var(--rust); }

    /* Loading screen */
    #loader {
      position: fixed; inset: 0;
      background: var(--cream);
      z-index: 99999;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 1rem;
      transition: opacity 0.8s ease;
    }
    #loader.hidden { opacity: 0; pointer-events: none; }
    .loader-name {
      font-family: var(--font-serif);
      font-size: clamp(2rem, 5vw, 4rem);
      font-weight: 300;
      color: var(--ink);
      overflow: hidden;
    }
    .loader-name span {
      display: inline-block;
      transform: translateY(100%);
      animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    }
    .loader-name span:nth-child(2) { animation-delay: 0.12s; font-style: italic; color: var(--rust); }
    @keyframes slideUp { to { transform: translateY(0); } }
    .loader-bar {
      width: 120px; height: 1px;
      background: var(--line);
      position: relative;
      overflow: hidden;
    }
    .loader-bar::after {
      content: '';
      position: absolute; inset-block: 0; left: -100%;
      width: 100%;
      background: var(--ink);
      animation: loadBar 1.2s ease forwards;
    }
    @keyframes loadBar { to { left: 100%; } }

    /* Nav */
    nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 1000;
      padding: 1.5rem 4rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: background 0.4s, box-shadow 0.4s;
    }
    nav.scrolled {
      background: rgba(247,244,239,0.92);
      backdrop-filter: blur(12px);
      box-shadow: 0 1px 0 var(--line);
    }
    .nav-logo {
      font-family: var(--font-serif);
      font-size: 1.25rem;
      font-weight: 400;
      color: var(--ink);
      text-decoration: none;
      letter-spacing: 0.02em;
    }
    .nav-logo em { font-style: italic; color: var(--rust); }
    .nav-links {
      display: flex;
      gap: 2.5rem;
      list-style: none;
    }
    .nav-links a {
      font-family: var(--font-mono);
      font-size: 0.7rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--ink-muted);
      text-decoration: none;
      position: relative;
      transition: color 0.2s;
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -2px; left: 0; right: 0;
      height: 1px;
      background: var(--rust);
      transform: scaleX(0);
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .nav-links a:hover { color: var(--ink); }
    .nav-links a:hover::after { transform: scaleX(1); }
    .nav-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: none;
      flex-direction: column;
      gap: 5px;
      padding: 4px;
    }
    .nav-menu-btn span {
      display: block;
      width: 24px; height: 1px;
      background: var(--ink);
      transition: all 0.3s;
    }

    /* Hero */
    #hero {
      min-height: 100vh;
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: end;
      padding: 0 4rem 4rem;
      position: relative;
      padding-top: 6rem;
    }
    .hero-left {
      padding-bottom: 2rem;
      opacity: 0;
      animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 1.4s forwards;
    }
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(30px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .hero-eyebrow {
      font-family: var(--font-mono);
      font-size: 0.7rem;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--ink-muted);
      margin-bottom: 1.5rem;
      display: flex;
      align-items: center;
      gap: 1rem;
    }
    .hero-eyebrow::before {
      content: '';
      display: block;
      width: 40px; height: 1px;
      background: var(--ink-muted);
    }
    .hero-name {
      font-family: var(--font-serif);
      font-size: clamp(4rem, 8vw, 7.5rem);
      font-weight: 300;
      line-height: 0.92;
      color: var(--ink);
      margin-bottom: 2rem;
    }
    .hero-name .italic { font-style: italic; color: var(--rust); display: block; }
    .hero-desc {
      font-size: 0.9rem;
      line-height: 1.8;
      color: var(--ink-light);
      max-width: 400px;
      font-weight: 300;
      margin-bottom: 2.5rem;
    }
    .hero-typed {
      font-family: var(--font-serif);
      font-size: 1.1rem;
      font-style: italic;
      color: var(--rust);
      min-height: 1.5rem;
      margin-bottom: 2.5rem;
    }
    .hero-cta {
      display: inline-flex;
      align-items: center;
      gap: 0.75rem;
      font-family: var(--font-mono);
      font-size: 0.7rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--ink);
      text-decoration: none;
      padding: 0.9rem 1.75rem;
      border: 1px solid var(--ink);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
    }
    .hero-cta::before {
      content: '';
      position: absolute;
      inset: 0;
      background: var(--ink);
      transform: translateX(-101%);
      transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .hero-cta span { position: relative; z-index: 1; }
    .hero-cta:hover { color: var(--cream); }
    .hero-cta:hover::before { transform: translateX(0); }

    .hero-right {
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 3rem;
      padding-bottom: 2rem;
      opacity: 0;
      animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) 1.6s forwards;
    }
    .hero-stats {
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 1.5rem;
    }
    .hero-stat {
      text-align: right;
      border-right: 1px solid var(--line);
      padding-right: 1.5rem;
    }
    .hero-stat-num {
      font-family: var(--font-serif);
      font-size: 3rem;
      font-weight: 300;
      color: var(--ink);
      line-height: 1;
    }
    .hero-stat-label {
      font-family: var(--font-mono);
      font-size: 0.65rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--ink-muted);
      margin-top: 0.25rem;
    }
    .hero-scroll {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      font-family: var(--font-mono);
      font-size: 0.65rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--ink-muted);
      text-decoration: none;
      writing-mode: vertical-rl;
      gap: 1rem;
    }
    .hero-scroll-line {
      width: 1px;
      height: 60px;
      background: var(--line);
      position: relative;
      overflow: hidden;
    }
    .hero-scroll-line::after {
      content: '';
      position: absolute;
      top: -100%; left: 0; right: 0;
      height: 100%;
      background: var(--ink);
      animation: scrollLine 2s ease infinite;
    }
    @keyframes scrollLine { to { top: 100%; } }

    /* Section base */
    section {
      padding: 7rem 4rem;
      position: relative;
    }
    .section-header {
      display: flex;
      align-items: baseline;
      gap: 1.5rem;
      margin-bottom: 4rem;
    }
    .section-num {
      font-family: var(--font-mono);
      font-size: 0.7rem;
      color: var(--rust);
      letter-spacing: 0.1em;
    }
    .section-title {
      font-family: var(--font-serif);
      font-size: clamp(2.5rem, 5vw, 4rem);
      font-weight: 300;
      line-height: 1;
      color: var(--ink);
    }
    .section-title em { font-style: italic; }
    .section-line {
      flex: 1;
      height: 1px;
      background: var(--line);
      margin-left: 1rem;
    }

    /* About */
    #about { background: var(--cream); }
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 6rem;
      align-items: start;
    }
    .about-text p {
      font-size: 1rem;
      line-height: 1.9;
      color: var(--ink-light);
      margin-bottom: 1.5rem;
      font-weight: 300;
    }
    .about-text p:first-child {
      font-family: var(--font-serif);
      font-size: 1.4rem;
      line-height: 1.6;
      color: var(--ink);
      font-weight: 300;
    }
    .about-text p:first-child em { font-style: italic; color: var(--rust); }
    .about-skills { }
    .skills-label {
      font-family: var(--font-mono);
      font-size: 0.65rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--ink-muted);
      margin-bottom: 1.5rem;
    }
    .skill-row {
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: 0.75rem 0;
      border-bottom: 1px solid var(--line);
    }
    .skill-name {
      font-family: var(--font-serif);
      font-size: 1.1rem;
      font-weight: 400;
      color: var(--ink);
      min-width: 140px;
    }
    .skill-bar-wrap {
      flex: 1;
      height: 1px;
      background: var(--line);
      position: relative;
    }
    .skill-bar-fill {
      position: absolute;
      top: 0; left: 0; bottom: 0;
      background: var(--ink);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .skill-bar-fill.animated { transform: scaleX(1); }
    .skill-pct {
      font-family: var(--font-mono);
      font-size: 0.65rem;
      color: var(--ink-muted);
      letter-spacing: 0.05em;
    }

    /* Ranks */
    .ranks-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      margin-top: 3rem;
    }
    .rank-card {
      padding: 1.5rem;
      border: 1px solid var(--line);
      text-align: center;
      transition: border-color 0.3s, background 0.3s;
    }
    .rank-card:hover {
      border-color: var(--rust);
      background: var(--rust-pale);
    }
    .rank-num {
      font-family: var(--font-serif);
      font-size: 2.5rem;
      font-weight: 300;
      color: var(--ink);
      line-height: 1;
    }
    .rank-institute {
      font-family: var(--font-mono);
      font-size: 0.65rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--ink-muted);
      margin-top: 0.5rem;
    }

    /* Projects */
    #projects { background: var(--cream-dark); }
    .projects-intro {
      font-family: var(--font-serif);
      font-size: 1.1rem;
      font-style: italic;
      color: var(--ink-muted);
      margin-bottom: 3rem;
      max-width: 500px;
    }
    #projects-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
      gap: 2px;
    }
    .project-card {
      background: var(--cream);
      padding: 2rem;
      position: relative;
      transition: background 0.3s;
      cursor: none;
      border: 1px solid transparent;
    }
    .project-card:hover {
      background: var(--cream-dark);
      border-color: var(--line);
    }
    .project-card-top {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 1rem;
    }
    .project-lang {
      font-family: var(--font-mono);
      font-size: 0.6rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--rust);
      padding: 3px 8px;
      border: 1px solid var(--rust-pale);
      background: var(--rust-pale);
    }
    .project-links {
      display: flex;
      gap: 0.5rem;
    }
    .project-link {
      font-family: var(--font-mono);
      font-size: 0.6rem;
      letter-spacing: 0.08em;
      color: var(--ink-muted);
      text-decoration: none;
      padding: 3px 8px;
      border: 1px solid var(--line);
      transition: all 0.2s;
    }
    .project-link:hover {
      color: var(--ink);
      border-color: var(--ink);
    }
    .project-name {
      font-family: var(--font-serif);
      font-size: 1.4rem;
      font-weight: 400;
      color: var(--ink);
      line-height: 1.2;
      margin-bottom: 0.5rem;
    }
    .project-desc {
      font-size: 0.82rem;
      line-height: 1.7;
      color: var(--ink-muted);
      font-weight: 300;
    }
    .project-stars {
      margin-top: 1rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-family: var(--font-mono);
      font-size: 0.6rem;
      color: var(--ink-muted);
    }
    .project-skeleton {
      height: 160px;
      background: linear-gradient(90deg, var(--cream-dark) 25%, var(--cream) 50%, var(--cream-dark) 75%);
      background-size: 200% 100%;
      animation: shimmer 1.5s infinite;
    }
    @keyframes shimmer { to { background-position: -200% 0; } }
    .projects-loading {
      grid-column: 1/-1;
      text-align: center;
      padding: 4rem;
      font-family: var(--font-serif);
      font-size: 1.1rem;
      font-style: italic;
      color: var(--ink-muted);
    }

    /* Teaching */
    #teaching { background: var(--cream); }
    .teaching-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 3rem;
    }
    .teach-item {
      padding: 2rem 0;
      border-top: 1px solid var(--line);
    }
    .teach-num {
      font-family: var(--font-serif);
      font-size: 3rem;
      font-weight: 300;
      color: var(--cream-dark);
      line-height: 1;
      margin-bottom: 0.5rem;
    }
    .teach-subject {
      font-family: var(--font-serif);
      font-size: 1.4rem;
      font-weight: 400;
      color: var(--ink);
      margin-bottom: 0.5rem;
    }
    .teach-desc {
      font-size: 0.82rem;
      color: var(--ink-muted);
      line-height: 1.7;
      font-weight: 300;
    }

    /* Contact */
    #contact {
      background: var(--ink);
      color: var(--cream);
    }
    .contact-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 6rem;
      align-items: start;
    }
    .contact-left .section-title { color: var(--cream); }
    .contact-left .section-num { color: var(--rust-light); }
    .contact-tagline {
      font-family: var(--font-serif);
      font-size: 1.2rem;
      font-style: italic;
      color: rgba(247,244,239,0.6);
      margin-top: 2rem;
      line-height: 1.7;
    }
    .contact-right { padding-top: 5rem; }
    .contact-link-group { margin-bottom: 2.5rem; }
    .contact-link-label {
      font-family: var(--font-mono);
      font-size: 0.6rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: rgba(247,244,239,0.35);
      margin-bottom: 0.75rem;
    }
    .contact-link {
      display: block;
      font-family: var(--font-serif);
      font-size: 1.4rem;
      font-weight: 300;
      color: var(--cream);
      text-decoration: none;
      position: relative;
      width: fit-content;
      transition: color 0.2s;
    }
    .contact-link::after {
      content: '';
      position: absolute;
      bottom: 0; left: 0; right: 0;
      height: 1px;
      background: var(--rust-light);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .contact-link:hover { color: var(--rust-light); }
    .contact-link:hover::after { transform: scaleX(1); }
    .social-row {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      margin-top: 2rem;
    }
    .social-btn {
      font-family: var(--font-mono);
      font-size: 0.65rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: rgba(247,244,239,0.5);
      text-decoration: none;
      padding: 0.6rem 1rem;
      border: 1px solid rgba(247,244,239,0.15);
      transition: all 0.25s;
    }
    .social-btn:hover {
      color: var(--cream);
      border-color: rgba(247,244,239,0.5);
    }
    .footer-line {
      margin-top: 5rem;
      padding-top: 2rem;
      border-top: 1px solid rgba(247,244,239,0.1);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .footer-copy {
      font-family: var(--font-mono);
      font-size: 0.65rem;
      letter-spacing: 0.08em;
      color: rgba(247,244,239,0.3);
    }
    .footer-copy em { font-style: italic; font-family: var(--font-serif); color: rgba(247,244,239,0.5); font-size: 0.8rem; }

    /* Scroll reveal */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }

    /* Mobile nav drawer */
    .mobile-nav {
      display: none;
      position: fixed;
      inset: 0;
      background: var(--cream);
      z-index: 999;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 2.5rem;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s;
    }
    .mobile-nav.open { opacity: 1; pointer-events: all; }
    .mobile-nav a {
      font-family: var(--font-serif);
      font-size: 2.5rem;
      font-weight: 300;
      color: var(--ink);
      text-decoration: none;
      font-style: italic;
    }

    /* Responsive */
    @media (max-width: 900px) {
      nav { padding: 1.25rem 2rem; }
      .nav-links { display: none; }
      .nav-menu-btn { display: flex; }
      .mobile-nav { display: flex; }

      #hero {
        grid-template-columns: 1fr;
        padding: 8rem 2rem 4rem;
        gap: 3rem;
        align-items: start;
      }
      .hero-right {
        flex-direction: row;
        align-items: flex-start;
        justify-content: flex-start;
      }
      .hero-stats { flex-direction: row; }
      .hero-stat { text-align: left; border-right: none; border-bottom: 1px solid var(--line); padding-right: 0; padding-bottom: 0.75rem; }
      .hero-scroll { writing-mode: horizontal-tb; flex-direction: row; }

      section { padding: 5rem 2rem; }
      .about-grid { grid-template-columns: 1fr; gap: 3rem; }
      .ranks-grid { grid-template-columns: repeat(2, 1fr); }
      .teaching-grid { grid-template-columns: 1fr; gap: 1rem; }
      .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
      .contact-right { padding-top: 0; }
      .footer-line { flex-direction: column; gap: 1rem; text-align: center; }
      #projects-grid { grid-template-columns: 1fr; }
    }
.hero-image {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  max-height: 80vh;
  z-index: 0;
  pointer-events: none;
}