:root {
      --bg: #07111f;
      --bg-soft: #0c1728;
      --panel: rgba(255, 255, 255, 0.065);
      --panel-strong: rgba(255, 255, 255, 0.10);
      --text: #f4f8ff;
      --muted: #aebcd1;
      --line: rgba(255, 255, 255, 0.12);
      --accent: #66b3ff;
      --accent-2: #7ee0d2;
      --max: 1160px;
      --radius: 22px;
      --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
    }

    * { box-sizing: border-box; }

    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      color: var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(59, 130, 246, 0.20), transparent 30%),
        radial-gradient(circle at 85% 20%, rgba(45, 212, 191, 0.12), transparent 28%),
        var(--bg);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      line-height: 1.65;
    }

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

    img { max-width: 100%; display: block; }

    .container {
      width: min(calc(100% - 36px), var(--max));
      margin: 0 auto;
    }

    .nav {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(18px);
      background: rgba(7, 17, 31, 0.72);
      border-bottom: 1px solid var(--line);
    }

    .nav-inner {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      font-weight: 800;
      letter-spacing: -0.02em;
    }

    .brand-logo {
      width: 34px;
      height: 34px;
      display: block;
      flex: 0 0 auto;
      object-fit: cover;
      border-radius: 9px;
      border: 1px solid rgba(255, 255, 255, 0.13);
      box-shadow: 0 7px 20px rgba(0, 0, 0, 0.22);
    }

    .nav-links {
      display: flex;
      gap: 24px;
      color: var(--muted);
      font-size: 0.95rem;
    }

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

    .nav-links a:last-child {
      padding: 5px 10px;
      margin: -5px -2px -5px 0;
      border: 1px solid rgba(126, 224, 210, 0.28);
      border-radius: 999px;
      color: #c8fff7;
      background: rgba(126, 224, 210, 0.06);
    }

    .hero {
      position: relative;
      min-height: 760px;
      display: grid;
      align-items: center;
      overflow: hidden;
    }

    #field {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      opacity: 0.58;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
      align-items: center;
      gap: clamp(44px, 6vw, 88px);
      padding: 112px 0 92px;
    }

    .hero-copy {
      min-width: 0;
    }

    .hero-copy h1 {
      font-size: clamp(3.15rem, 4.8vw, 5.05rem);
    }

    .hero-portrait {
      position: relative;
      width: min(100%, 470px);
      aspect-ratio: 1 / 1;
      justify-self: end;
      border-radius: 50%;
      padding: 10px;
      background:
        linear-gradient(145deg, rgba(154, 208, 255, 0.46), rgba(126, 224, 210, 0.18));
      box-shadow:
        0 34px 90px rgba(0, 0, 0, 0.38),
        0 0 0 1px rgba(255, 255, 255, 0.12);
      isolation: isolate;
    }

    .hero-portrait::before {
      content: "";
      position: absolute;
      inset: -28px;
      z-index: -1;
      border-radius: 50%;
      background: radial-gradient(
        circle,
        rgba(102, 179, 255, 0.20),
        rgba(126, 224, 210, 0.06) 48%,
        transparent 72%
      );
      filter: blur(10px);
    }

    .profile-photo {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
      object-position: 56% 42%;
      border-radius: 50%;
      background: var(--bg-soft);
      border: 1px solid rgba(255, 255, 255, 0.15);
    }


    /* Subtle scientific visual language: brain geometry, Jacobian matrix, and mappings. */
    .science-layer {
      position: absolute;
      inset: 0;
      z-index: 1;
      overflow: hidden;
      pointer-events: none;
      user-select: none;
    }

    .science-motif {
      position: absolute;
      color: var(--accent);
      opacity: 0.13;
      filter: drop-shadow(0 0 16px rgba(102, 179, 255, 0.10));
    }

    .science-motif svg {
      width: 100%;
      height: 100%;
      display: block;
      overflow: visible;
    }

    .brain-motif {
      width: min(48vw, 690px);
      aspect-ratio: 1.18 / 1;
      right: -7%;
      top: 7%;
      color: var(--accent-2);
      opacity: 0.105;
      transform: rotate(-5deg);
    }

    .jacobian-motif {
      width: min(23vw, 310px);
      aspect-ratio: 1.15 / 1;
      right: 34%;
      top: 9%;
      opacity: 0.12;
      transform: rotate(4deg);
    }

    .mapping-motif {
      width: min(42vw, 600px);
      aspect-ratio: 2.3 / 1;
      right: 9%;
      bottom: 4%;
      opacity: 0.11;
    }

    .science-label {
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.09em;
      text-transform: uppercase;
      fill: currentColor;
      opacity: 0.72;
    }

    .science-stroke {
      fill: none;
      stroke: currentColor;
      stroke-width: 1.6;
      vector-effect: non-scaling-stroke;
    }

    .science-stroke-thin {
      fill: none;
      stroke: currentColor;
      stroke-width: 0.9;
      vector-effect: non-scaling-stroke;
    }

    .science-node {
      fill: currentColor;
    }

    .science-pulse {
      transform-origin: center;
      animation: sciencePulse 5.5s ease-in-out infinite;
    }

    .science-drift {
      animation: scienceDrift 9s ease-in-out infinite alternate;
    }

    @keyframes sciencePulse {
      0%, 100% { opacity: 0.25; transform: scale(0.96); }
      50% { opacity: 0.8; transform: scale(1.06); }
    }

    @keyframes scienceDrift {
      from { transform: translate3d(0, -4px, 0); }
      to { transform: translate3d(10px, 7px, 0); }
    }

    .research-card {
      position: relative;
      overflow: hidden;
      min-height: 330px;
      display: flex;
      flex-direction: column;
    }

    .research-card::after {
      content: "";
      position: absolute;
      width: 190px;
      height: 190px;
      right: -82px;
      bottom: -92px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(126, 224, 210, 0.09), transparent 68%);
      pointer-events: none;
    }

    .research-visual {
      width: 100%;
      height: 92px;
      margin: 4px 0 20px;
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 15px;
      background:
        linear-gradient(135deg, rgba(102, 179, 255, 0.07), rgba(126, 224, 210, 0.025));
      overflow: hidden;
    }

    .research-visual svg {
      width: 100%;
      height: 100%;
      display: block;
    }

    .research-visual .v-stroke {
      fill: none;
      stroke: rgba(173, 219, 255, 0.72);
      stroke-width: 1.5;
      vector-effect: non-scaling-stroke;
    }

    .research-visual .v-stroke-soft {
      fill: none;
      stroke: rgba(126, 224, 210, 0.45);
      stroke-width: 1;
      vector-effect: non-scaling-stroke;
    }

    .research-visual .v-fill {
      fill: rgba(126, 224, 210, 0.72);
    }

    .research-visual .v-fill-blue {
      fill: rgba(102, 179, 255, 0.62);
    }

    .research-card .card-link {
      margin-top: auto;
      padding-top: 20px;
      position: relative;
      z-index: 2;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 13px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.05);
      color: #cfe5ff;
      font-size: 0.9rem;
      margin-bottom: 24px;
    }

    .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent-2);
      box-shadow: 0 0 18px var(--accent-2);
    }

    h1 {
      margin: 0;
      font-size: clamp(3rem, 8vw, 6.5rem);
      line-height: 0.98;
      letter-spacing: -0.065em;
    }

    .gradient-text {
      background: linear-gradient(90deg, #ffffff 0%, #8cc7ff 55%, #7ee0d2 100%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .hero-subtitle {
      max-width: 760px;
      margin: 28px 0 0;
      color: var(--muted);
      font-size: clamp(1.15rem, 2vw, 1.45rem);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 34px;
    }

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 19px;
      border-radius: 13px;
      border: 1px solid var(--line);
      font-weight: 700;
      transition: 180ms ease;
    }

    .button.primary {
      color: #07111f;
      background: linear-gradient(135deg, #9ad0ff, #7ee0d2);
      border-color: transparent;
    }

    .button.secondary {
      background: rgba(255, 255, 255, 0.055);
    }

    .button:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.24);
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 18px 28px;
      margin-top: 42px;
      color: var(--muted);
      font-size: 0.94rem;
    }

    section {
      padding: 96px 0;
      border-top: 1px solid var(--line);
    }

    .section-heading {
      display: grid;
      grid-template-columns: 0.8fr 1.2fr;
      gap: 44px;
      align-items: start;
      margin-bottom: 42px;
    }

    .section-heading h2 {
      margin: 0;
      font-size: clamp(2rem, 4vw, 3.6rem);
      line-height: 1.05;
      letter-spacing: -0.045em;
    }

    .section-heading p {
      margin: 0;
      color: var(--muted);
      font-size: 1.07rem;
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .card {
      padding: 26px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: linear-gradient(180deg, var(--panel-strong), var(--panel));
      box-shadow: var(--shadow);
    }

    .card-number {
      font-size: 0.82rem;
      color: var(--accent-2);
      font-weight: 800;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .card h3 {
      margin: 14px 0 10px;
      font-size: 1.35rem;
      line-height: 1.25;
    }

    .card p {
      margin: 0;
      color: var(--muted);
    }

    .card-link {
      display: inline-block;
      margin-top: 20px;
      color: #b9dcff;
      font-weight: 700;
    }

    .publication-list {
      display: grid;
      gap: 20px;
    }

    .publication {
      display: grid;
      grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
      gap: clamp(24px, 3.5vw, 42px);
      align-items: center;
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: 20px;
      background:
        radial-gradient(circle at 9% 12%, rgba(102, 179, 255, 0.08), transparent 38%),
        rgba(255, 255, 255, 0.045);
      box-shadow: 0 18px 42px rgba(0, 0, 0, 0.17);
      overflow: hidden;
    }

    .publication-thumb {
      display: block;
      width: 100%;
      min-width: 0;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: 14px;
      background: #f7fbff;
      box-shadow: 0 13px 30px rgba(0, 0, 0, 0.22);
    }

    .publication-thumb img {
      width: 100%;
      height: 100%;
      max-width: none;
      display: block;
      object-fit: cover;
      object-position: center;
      transition: transform 180ms ease;
    }

    .publication-thumb:hover img,
    .publication-thumb:focus-visible img {
      transform: scale(1.018);
    }

    .publication-body {
      min-width: 0;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
    }

    .publication-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 9px 13px;
      margin-bottom: 12px;
    }

    .pub-year {
      color: var(--accent-2);
      font-size: 1rem;
      font-weight: 850;
      letter-spacing: 0.055em;
    }

    .pub-journal {
      color: #c6d8ee;
      font-size: 0.78rem;
      font-weight: 750;
      letter-spacing: 0.035em;
      text-transform: uppercase;
    }

    .publication h3 {
      margin: 0;
      font-size: clamp(1.22rem, 2.1vw, 1.55rem);
      line-height: 1.32;
    }

    .publication-authors {
      margin: 10px 0 0;
      color: var(--muted);
    }

    .publication-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-start;
      gap: 9px;
      margin-top: 20px;
    }

    .pill {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 38px;
      padding: 7px 12px;
      border: 1px solid var(--line);
      border-radius: 999px;
      color: #d7eaff;
      font-size: 0.86rem;
      font-weight: 720;
      white-space: nowrap;
    }

    .publication h3 a { color: inherit; }

    .publication h3 a:hover,
    .publication h3 a:focus-visible { color: #b9dcff; }

    .pill.primary-link {
      border-color: rgba(126, 224, 210, 0.32);
      background: rgba(126, 224, 210, 0.08);
      color: #c8fff7;
    }

    @media (max-width: 820px) {
      .publication {
        grid-template-columns: 1fr;
        gap: 22px;
      }

      .publication-thumb {
        width: 100%;
      }
    }

    .news-list {
      display: grid;
      gap: 14px;
    }

    .news-item {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 20px;
      padding: 18px 0;
      border-bottom: 1px solid var(--line);
    }

    .news-date {
      color: var(--accent-2);
      font-weight: 800;
    }


    .award-card {
      position: relative;
      display: grid;
      grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.05fr);
      gap: clamp(28px, 4vw, 50px);
      align-items: center;
      padding: clamp(22px, 3vw, 34px);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background:
        radial-gradient(circle at 15% 10%, rgba(102, 179, 255, 0.12), transparent 42%),
        linear-gradient(145deg, rgba(102, 179, 255, 0.075), rgba(126, 224, 210, 0.035));
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .award-card::after {
      content: "";
      position: absolute;
      width: 280px;
      height: 280px;
      right: -110px;
      bottom: -145px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(126, 224, 210, 0.10), transparent 68%);
      pointer-events: none;
    }

    .award-image {
      position: relative;
      width: 100%;
      aspect-ratio: 4 / 3;
      overflow: hidden;
      border-radius: 18px;
      border: 1px solid var(--line);
      background: var(--bg-soft);
      box-shadow: 0 22px 50px rgba(0, 0, 0, 0.24);
    }

    .award-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: 0% 50%;
      transition: transform 240ms ease;
    }

    .award-card:hover .award-image img {
      transform: scale(1.022);
    }

    .award-content {
      position: relative;
      z-index: 2;
    }

    .award-badge {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 8px 12px;
      margin-bottom: 18px;
      border: 1px solid rgba(126, 224, 210, 0.22);
      border-radius: 999px;
      background: rgba(126, 224, 210, 0.07);
      color: #c8fff7;
      font-size: 0.84rem;
      font-weight: 800;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }

    .award-badge::before {
      content: "★";
      color: var(--accent-2);
      font-size: 0.88rem;
    }

    .award-content h3 {
      margin: 0 0 14px;
      font-size: clamp(1.75rem, 3vw, 2.6rem);
      line-height: 1.12;
      letter-spacing: -0.035em;
    }

    .award-content p {
      margin: 0;
      color: var(--muted);
    }

    .award-organization {
      margin-top: 22px !important;
      padding-top: 18px;
      border-top: 1px solid var(--line);
      color: #d5e8ff !important;
      font-size: 0.94rem;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 24px;
    }

    .fact-list {
      display: grid;
      gap: 14px;
      margin-top: 10px;
    }

    .fact {
      padding-bottom: 14px;
      border-bottom: 1px solid var(--line);
    }

    .fact strong {
      display: block;
      margin-bottom: 3px;
    }

    .fact span { color: var(--muted); }

    .education-list {
      position: relative;
      display: grid;
      gap: 18px;
      margin-top: 4px;
    }

    .education-list::before {
      content: "";
      position: absolute;
      top: 20px;
      bottom: 20px;
      left: 18px;
      width: 1px;
      background: linear-gradient(
        to bottom,
        rgba(126, 224, 210, 0.65),
        rgba(102, 179, 255, 0.16)
      );
    }

    .education-item {
      position: relative;
      display: grid;
      grid-template-columns: 58px minmax(0, 1fr);
      gap: 18px;
      align-items: start;
      padding: 24px 26px 24px 0;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: linear-gradient(180deg, var(--panel-strong), var(--panel));
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .education-item::after {
      content: "";
      position: absolute;
      width: 190px;
      height: 190px;
      right: -90px;
      bottom: -105px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(102, 179, 255, 0.10), transparent 70%);
      pointer-events: none;
    }

    .education-marker {
      position: relative;
      z-index: 2;
      width: 36px;
      height: 36px;
      margin-left: 0;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: linear-gradient(145deg, #8cc7ff, #7ee0d2);
      color: #07111f;
      font-size: 0.82rem;
      font-weight: 900;
      box-shadow: 0 0 0 7px rgba(7, 17, 31, 0.96);
    }

    .education-content {
      position: relative;
      z-index: 2;
    }

    .education-meta {
      color: var(--accent-2);
      font-size: 0.84rem;
      font-weight: 800;
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }

    .education-content h3 {
      margin: 8px 0 4px;
      font-size: clamp(1.35rem, 2.4vw, 1.85rem);
      line-height: 1.2;
    }

    .education-institution {
      margin: 0;
      color: #d9e9fb;
      font-weight: 700;
    }

    .education-detail {
      margin: 9px 0 0;
      color: var(--muted);
    }

    .education-highlight {
      display: inline-flex;
      margin-top: 14px;
      padding: 7px 11px;
      border: 1px solid rgba(126, 224, 210, 0.22);
      border-radius: 999px;
      background: rgba(126, 224, 210, 0.06);
      color: #c8fff7;
      font-size: 0.86rem;
      font-weight: 750;
    }

    footer {
      padding: 42px 0 56px;
      border-top: 1px solid var(--line);
      color: var(--muted);
    }

    .footer-inner {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 20px;
    }

    @media (max-width: 900px) {
      .nav-links { display: none; }

      .hero {
        min-height: auto;
      }

      .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 82px 0 72px;
      }

      .hero-copy {
        text-align: center;
      }

      .hero-copy h1 {
        font-size: clamp(2.8rem, 12vw, 4.7rem);
      }

      .eyebrow,
      .hero-actions,
      .hero-meta {
        justify-content: center;
      }

      .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
      }

      .hero-portrait {
        grid-row: 1;
        width: min(76vw, 390px);
        justify-self: center;
      }


      .brain-motif {
        width: 760px;
        right: -390px;
        top: 8%;
        opacity: 0.07;
      }

      .jacobian-motif {
        width: 250px;
        right: -90px;
        top: 40%;
        opacity: 0.075;
      }

      .mapping-motif {
        width: 430px;
        right: -180px;
        bottom: 4%;
        opacity: 0.07;
      }

      .section-heading,
      .about-grid {
        grid-template-columns: 1fr;
      }

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

      .award-card {
        grid-template-columns: 1fr;
      }

      .education-item {
        grid-template-columns: 48px minmax(0, 1fr);
        padding-right: 20px;
      }

      .education-list::before {
        left: 18px;
      }
    }

    @media (max-width: 560px) {
      .hero-content {
        padding-top: 62px;
      }

      .hero-portrait {
        width: min(82vw, 330px);
      }

      .hero-actions .button {
        width: 100%;
      }

      .hero-meta {
        gap: 10px 18px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      * { animation: none !important; transition: none !important; }
      #field { display: none; }
      .science-pulse,
      .science-drift { animation: none !important; }
    }