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

    :root {
      /* — palette — */
      --col-bg:       #a8c0cc;/*#d4d4d0;   /* light grey  */
      --col-box:      #ffffff;   /* white       */
      --col-heading:  #2a6e6e;   /* dark teal   */
      --col-text:     #2a2a2a;   /* near-black  */
      --col-divider:  #b89e6a;/*#c8b48a;   /* warm tan    */
      --col-subhead:  #3a8888;   /* mid teal    */
      --col-emphasis: #e85a42;   /* coral       */
      /* — derived — */
      --col-muted:    #2a2a2a;/*5a5a56;*/
      --col-faint:    #9a9a95;
      --col-teal-pale:#eaf3f3;
      /* — type — */
      /*--serif: 'Lora', Georgia, serif;*/
      --sans:  'Figtree', sans-serif;
      --max:   800px;
    }

    html { scroll-behavior: smooth; }

    body {
      background: var(--col-box);
      color: var(--col-text);
      font-family: var(--sans);
      font-size: 17px;
      line-height: 1.75;
      font-weight: 300;
    }

    /* ── NAV ── */
    nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 200;
      background: var(--col-box);
      border-bottom: 1px solid var(--col-bg);
      padding: 0 2.5rem;
      height: 54px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .nav-name {
      font-family: var(--sans);
      font-size: 0.95rem;
      font-weight: 400;
      color: var(--col-heading);
      text-decoration: none;
      letter-spacing: 0.01em;
    }
    .nav-links { display: flex; gap: 2rem; list-style: none; }
    .nav-links a {
      font-size: 0.78rem;
      font-weight: 400;
      letter-spacing: 0.07em;
      text-transform: uppercase;
      color: var(--col-faint);
      text-decoration: none;
      transition: color 0.2s;
    }
    .nav-links a:hover { color: var(--col-heading); }

    /* ── HERO ── */
    #hero {
      min-height: 100svh;
      display: grid;
      grid-template-columns: 1fr auto;
      grid-template-rows: auto;
      align-items: center;
      gap: 3rem;
      padding: 7rem 2.5rem 5rem;
      max-width: var(--max);
      margin: 0 auto;
      position: relative;
    }
    .hero-text { display: flex; flex-direction: column; }
    .hero-photo-wrap {
      width: 180px;
      flex-shrink: 0;
      align-self: center;
    }
    .hero-photo {
    width: 180px;
    height: auto;
    display: block;
    border-radius: 10%;  
    border: 1px solid var(--col-divider);
    }

    /* decorative vertical rule */
    #hero::before {
      content: '';
      position: absolute;
      left: 0;
      top: 25%;
      bottom: 25%;
      width: 3px;
      background: linear-gradient(to bottom, transparent, var(--col-divider), transparent);
    }

    .hello {
      font-size: 0.8rem;
      font-weight: 500;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: var(--col-subhead);
      margin-bottom: 1.4rem;
      opacity: 0;
      animation: fadeUp 0.6s 0.1s forwards;
    }

    h1 {
      font-family: var(--sans);
      font-size: clamp(1.8rem, 4vw, 3rem);/*clamp(2.8rem, 6vw, 4.2rem);*/
      font-weight: 400;
      line-height: 1.15;
      color: var(--col-heading);
      margin-bottom: 2rem;
      opacity: 0;
      animation: fadeUp 0.7s 0.25s forwards;
    }
    h1 em {
      font-style: italic;
      color: var(--col-emphasis);
    }

    p em {
      font-style: normal;
      color: var(--col-emphasis);
    }

    .hero-body {
      font-size: 1.1rem;
      font-weight: 300;
      line-height: 1.85;
      color: var(--col-muted);
      max-width: 580px;
      opacity: 0;
      animation: fadeUp 0.7s 0.4s forwards;
    }
    .hero-body p + p { margin-top: 1rem; }

    .hero-cta {
      margin-top: 2.5rem;
      display: flex;
      gap: 0.8rem;
      flex-wrap: wrap;
      opacity: 0;
      animation: fadeUp 0.7s 0.55s forwards;
    }

    .btn {
      font-family: var(--sans);
      font-size: 0.8rem;
      font-weight: 400;
      letter-spacing: 0.06em;
      padding: 0.6rem 1.3rem;
      text-decoration: none;
      transition: all 0.2s;
      border-radius: 1rem;  
      width: fit-content;
      display: inline-block;
    }
    .btn-solid {
      background: var(--col-heading);
      color: #fff;
      border: 1.5px solid var(--col-heading);
    }
    .btn-solid:hover {
      background: var(--col-subhead);
      border-color: var(--col-subhead);
    }
    .btn-outline {
      border: 1.5px solid var(--col-divider);
      color: var(--col-muted);
      background: transparent;
      display: inline-block;
      width: fit-content;
    }
    .btn-outline:hover {
      border-color: var(--col-heading);
      color: var(--col-heading);
    }

    .scroll-hint {
      margin-top: 4.5rem;
      display: flex;
      align-items: center;
      gap: 0.8rem;
      font-size: 0.74rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--col-faint);
      opacity: 0;
      animation: fadeUp 0.6s 1s forwards;
    }
    .scroll-line {
      width: 1px;
      height: 0;
      background: var(--col-divider);
      animation: growLine 0.9s 1.6s forwards;
    }
    @keyframes growLine { to { height: 36px; } }

    /* ── SECTIONS ── */
    .section {
      padding: 3rem 1.5rem;
      max-width: var(--max);
      margin: 0 auto;
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    .section.visible { opacity: 1; transform: none; }

    /* alternate sections get grey background — full bleed */
    .section-grey {
      background: var(--col-bg);
      max-width: none;
      padding-left: 0;
      padding-right: 0;
    }
    .section-grey .section-inner {
      max-width: var(--max);
      margin: 0 auto;
      padding: 0 2.5rem;
    }

    .section-tag {
      font-size: 0.72rem;
      font-weight: 500;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--col-emphasis);
      margin-bottom: 1.8rem;
      display: flex;
      align-items: center;
      gap: 0.8rem;
    }
    .section-tag::after {
      content: '';
      flex: 1;
      max-width: 3rem;
      height: 1.5px;
      background: var(--col-divider);
    }

    h2 {
      font-family: var(--sans);
      font-size: 2rem;
      font-weight: 400;
      color: var(--col-heading);
      line-height: 1.25;
      margin-bottom: 1.4rem;
    }
    h2 em { font-style: italic; color: var(--col-emphasis); }

    p { margin-bottom: 1rem; color: var(--col-muted); }
    p:last-child { margin-bottom: 0; }

    /* ── RESEARCH TOPICS ── */
    .topics {
      display: flex;
      flex-wrap: wrap;
      gap: 0.45rem;
      margin-top: 2rem;
    }
    .topic-pill {
      background: var(--col-box);
      color: var(--col-heading);
      font-size: 0.8rem;
      font-weight: 400;
      padding: 0.3rem 0.85rem;
      border-radius: 999px;
      border: 1px solid var(--col-divider);
    }

    /* ── PUBLICATIONS ── */
    .pub-list { list-style: none; }
    .pub-item {
      padding: 1.5rem 0;
      border-bottom: 1px solid var(--col-bg);
      display: grid;
      grid-template-columns: 3.2rem 1fr;
      gap: 1.2rem;
    }
    .pub-item:first-child { border-top: 1px solid var(--col-bg); }
    .pub-yr {
      font-size: 0.76rem;
      color: var(--col-faint);
      padding-top: 0.2rem;
      font-variant-numeric: tabular-nums;
    }
    .pub-title {
      font-family: var(--sans);
      font-size: 1rem;
      font-style: italic;
      line-height: 1.5;
      margin-bottom: 0.3rem;
    }
    .pub-title a {
      color: var(--col-text);
      text-decoration: none;
      border-bottom: 1px solid transparent;
      transition: color 0.2s, border-color 0.2s;
    }
    .pub-title a:hover { color: var(--col-heading); border-color: var(--col-heading); }
    .pub-meta { font-size: 0.82rem; color: var(--col-faint); margin-bottom: 0; }

    /* ── SOFTWARE ── */
    .sw-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
      gap: 1.5rem;
      margin-top: 0.5rem;
    }
    .sw-card {
      background: var(--col-box);
      border: 1px solid var(--col-box);
      border-radius: 1rem;  
      padding: 2rem 2rem 1.6rem;
      display: flex;
      flex-direction: column;
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .sw-card:hover {
      border-color: var(--col-subhead);
      box-shadow: 0 4px 24px rgba(42,110,110,0.08);
    }
    .sw-card-name {
      font-family: var(--sans);
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--col-heading);
      margin-bottom: 0.65rem;
    }
    .sw-card-name a { color: inherit; text-decoration: none; }
    p a { color: inherit; text-decoration: none; }
    .sw-card-name a:hover { color: var(--col-subhead); }
    .sw-card-desc {
      font-size: 0.88rem;
      color: var(--col-muted);
      line-height: 1.7;
      margin-bottom: 1.4rem;
      flex: 1;
    }

    .sw-card-desc ul {
      font-size: 0.88rem;
      color: var(--col-muted);
      line-height: 1.7;
      margin-bottom: 1.4rem;
      flex: 1;
    }
    .sw-card-lang {
      font-size: 0.73rem;
      color: var(--col-faint);
      letter-spacing: 0.06em;
      padding-top: 1rem;
      border-top: 1px solid var(--col-bg);
    }
    .sw-dot {
      display: inline-block;
      width: 7px; height: 7px;
      border-radius: 50%;
      background: var(--col-subhead);
      margin-right: 0.3rem;
      vertical-align: middle;
    }

    /* ── CONTACT ── */
    .contact-intro {
      font-size: 1.1rem;
      line-height: 1.9;
      max-width: 500px;
      margin-bottom: 2.5rem;
    }
    .contact-list { list-style: none; max-width: 440px; }
    .contact-item {
      border-bottom: 1px solid var(--col-divider);
    }
    .contact-item:first-child { border-top: 1px solid var(--col-divider); }
    .contact-item a {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0.9rem 0;
      text-decoration: none;
      color: var(--col-text);
      font-size: 0.92rem;
      transition: color 0.2s;
    }
    .contact-item a:hover { color: var(--col-heading); }
    .contact-item a:hover .ci-arrow { color: var(--col-emphasis); }
    .ci-label {
      font-size: 0.7rem;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--col-faint);
      margin-right: 1rem;
    }
    .ci-arrow { color: var(--col-faint); font-size: 0.9rem; transition: color 0.2s; }

    /* ── FOOTER ── */
    footer {
      background: var(--col-heading);
      color: var(--col-bg);
      padding: 2rem 2.5rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.76rem;
      letter-spacing: 0.04em;
    }
    footer a { color: var(--col-ffffff); text-decoration: none; }

    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(14px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    @media (max-width: 600px) {
      #hero { grid-template-columns: 1fr; grid-template-rows: auto auto; gap: 2rem; padding-top: 5rem; }
      #hero::before { display: none; }
      .hero-photo-wrap { order: -1; }
      .hero-photo, .hero-photo-placeholder { width: 100px; height: 120px; }
      h1 { font-size: 2.4rem; }
      nav { padding: 0 1.2rem; }
      .nav-links { gap: 1.2rem; }
      .section, .section-grey .section-inner { padding-left: 1.2rem; padding-right: 1.2rem; }
      footer { flex-direction: column; gap: 0.4rem; text-align: center; }
    }

    /* ── JEWELLERY GALLERY ── */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
      margin-top: 0.5rem;
    }
    .gallery-item {
      aspect-ratio: 1;
      background: var(--col-bg);
      border: 1px solid var(--col-divider);
      border-radius: 2px;
      overflow: hidden;
      position: relative;
      cursor: pointer;
      transition: box-shadow 0.25s, border-color 0.25s;
    }
    .gallery-item:hover {
      border-color: var(--col-subhead);
      box-shadow: 0 6px 28px rgba(42,110,110,0.12);
    }
    .gallery-item img {
      width: 100%; height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }
    .gallery-item:hover img { transform: scale(1.04); }
    .gallery-placeholder {
      width: 100%; height: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      color: var(--col-faint);
      font-size: 0.75rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }
    .gallery-placeholder svg {
      opacity: 0.3;
    }
    .gallery-caption {
      position: absolute;
      bottom: 0; left: 0; right: 0;
      padding: 0.6rem 0.8rem;
      background: linear-gradient(to top, rgba(42,42,42,0.7), transparent);
      color: #fff;
      font-size: 0.78rem;
      opacity: 0;
      transition: opacity 0.25s;
    }
    .gallery-item:hover .gallery-caption { opacity: 1; }

    /* lightbox */
    .lightbox {
      display: none;
      position: fixed;
      inset: 0;
      z-index: 1000;
      background: rgba(42,42,42,0.9);
      align-items: center;
      justify-content: center;
      padding: 2rem;
    }
    .lightbox.open { display: flex; }
    .lightbox img {
      max-width: 90vw;
      max-height: 85vh;
      object-fit: contain;
      border-radius: 2px;
    }
    .lightbox-close {
      position: fixed;
      top: 1.5rem; right: 2rem;
      font-size: 1.8rem;
      color: #fff;
      cursor: pointer;
      line-height: 1;
      opacity: 0.7;
      transition: opacity 0.2s;
      background: none;
      border: none;
      font-family: var(--sans);
    }
    .lightbox-close:hover { opacity: 1; }

    /* ── BEYOND SECTION ── */
    .beyond-grid {
      display: grid;
      grid-template-columns: 1fr 1px 1fr;
      gap: 3rem;
      align-items: start;
      margin-top: 0.5rem;
    }
    .beyond-divider {
      background: var(--col-divider);
      align-self: stretch;
    }
    .sports-list { list-style: none; }
    .sport-item {
      display: flex;
      gap: 1rem;
      align-items: flex-start;
      padding: 1rem 0;
      border-bottom: 1px solid var(--col-bg);
    }
    .sport-item:first-child { border-top: 1px solid var(--col-bg); }
    .sport-icon {
      width: 36px; height: 36px;
      background: var(--col-teal-pale);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: var(--col-heading);
      margin-top: 0.1rem;
    }
    .sport-name {
      font-family: var(--sans);
      font-size: 1rem;
      font-weight: 600;
      color: var(--col-heading);
      margin-bottom: 0.15rem;
    }
    .sport-desc { font-size: 0.85rem; color: var(--col-muted); margin-bottom: 0; }
    @media (max-width: 650px) {
      .beyond-grid { grid-template-columns: 1fr; gap: 2.5rem; }
      .beyond-divider { display: none; }
    }

    /* ── SPORTS ROW ── */
    .sports-divider {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin: 2.5rem 0 1.5rem;
    }
    .sports-divider::before,
    .sports-divider::after {
      content: '';
      flex: 1;
      height: 1px;
      background: var(--col-divider);
    }
    .sports-divider-label {
      font-family: var(--sans);
      font-size: 0.88rem;
      font-style: italic;
      color: var(--col-faint);
      white-space: nowrap;
    }
    .sports-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
    }
    .sport-photo-item {
      position: relative;
      aspect-ratio: 4/3;
      background: var(--col-bg);
      border: 1px solid var(--col-divider);
      border-radius: 2px;
      overflow: hidden;
      cursor: pointer;
      transition: box-shadow 0.25s, border-color 0.25s;
    }
    .sport-photo-item:hover {
      border-color: var(--col-subhead);
      box-shadow: 0 4px 20px rgba(42,110,110,0.1);
    }
    .sport-photo-item img {
      width: 100%; height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }
    .sport-photo-item:hover img { transform: scale(1.04); }
    .sport-photo-label {
      position: absolute;
      bottom: 0; left: 0; right: 0;
      padding: 0.5rem 0.7rem;
      background: linear-gradient(to top, rgba(42,42,42,0.65), transparent);
      color: #fff;
      font-size: 0.8rem;
      font-family: var(--sans);
      font-style: italic;
      letter-spacing: 0.02em;
    }
    @media (max-width: 500px) {
      .sports-row { grid-template-columns: 1fr; }
    }
  
    .sw-link {
        color: inherit; 
        /*text-decoration: none;*/
    }