/* Colours: change --primary to recolour the whole site. */
:root {
  --primary: #4f7c9d;
  --primary-dark: #2f4a5e;
  --primary-soft: #eaf1f6;
  --text: #313131;
  --muted: rgba(0, 0, 0, 0.56);
  --alt-bg: #f7f7f7;
  --border: rgba(0, 0, 0, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Roboto", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: #fff;
  display: flex; flex-direction: column; min-height: 100vh;
}
main { flex: 1; padding-top: 62px; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-dark); }
h1, h2, h3, h4 { font-family: "Montserrat", sans-serif; font-weight: 400; color: var(--text); }

/* ---------- Navbar ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--primary);
  box-shadow: 0 .125rem .25rem rgba(0,0,0,.1);
}
.nav-inner {
  max-width: 1140px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between; height: 62px;
}
.nav-brand { font-family: "Montserrat", sans-serif; font-weight: 700; font-size: 1.3rem; color: #fff; }
.nav-brand:hover { color: #fff; }
.nav-links { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; }
.nav-links a {
  display: block; padding: 10px 12px;
  font-family: "Montserrat", sans-serif; font-weight: 700; font-size: .95rem; color: var(--primary-dark);
  border-bottom: 2px solid transparent;
}
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a.active { border-bottom-color: #fff; }
.nav-toggle { display: none; background: none; border: 0; color: #fff; font-size: 1.4rem; cursor: pointer; }

/* ---------- Layout ---------- */
section { padding: 70px 0 60px; }
section.alt { background: var(--alt-bg); }
.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
.row { display: flex; gap: 48px; }
.col-side { flex: 0 0 31%; }
.col-main { flex: 1; min-width: 0; }

.section-heading h1, .section-heading h2 { font-size: 2.2rem; margin: 0 0 .4rem; line-height: 1.2; }
.section-heading p { color: var(--muted); font-size: 1.05rem; margin: 0 0 1rem; }
.section-heading a.more { font-weight: 700; font-size: .95rem; }
.col-main > h1 { font-size: 2.2rem; margin: 0 0 1rem; }

/* Header band on inner pages */
.page-header { background: var(--alt-bg); border-bottom: 1px solid #eee; padding: 56px 0 40px; }
.page-header h1 { font-size: 2.8rem; margin: 0 0 .3rem; line-height: 1.15; }
.page-header p { color: var(--muted); font-size: 1.15rem; margin: 0; max-width: 720px; }

/* ---------- Home: profile ---------- */
#about { padding-top: 64px; }
.profile { text-align: center; }
.portrait {
  width: 210px; height: 210px; object-fit: cover; object-position: center 20%;
  border-radius: 50%; display: block; margin: 0 auto 1rem;
  box-shadow: 0 4px 18px rgba(0,0,0,.12);
}
.profile-name { font-size: 1.9rem; margin: 0 0 .3rem; }
.profile-role { font-size: 1.12rem; color: var(--muted); margin: 0; }
.profile-org { font-size: 1.02rem; margin: .3rem 0 1rem; }
.network-icon { list-style: none; padding: 0; margin: 0; display: flex; justify-content: center; gap: 12px; }
.network-icon a { font-size: 1.9rem; color: var(--primary); }
.network-icon a:hover { color: var(--primary-dark); }
.network-icon.small a { font-size: 1.3rem; }

.video { margin: 1.6rem auto 0; max-width: 320px; }
.video-frame { position: relative; aspect-ratio: 16 / 9; border-radius: 6px; overflow: hidden; box-shadow: 0 4px 14px rgba(0,0,0,.12); background: #000; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video figcaption { font-size: .88rem; line-height: 1.4; margin-top: .6rem; color: var(--text); }
.video figcaption span { color: var(--muted); font-size: .82rem; }

.lead { font-size: 1.12rem; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 1.4rem; }
.btn-solid, .btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px; border-radius: 4px; font-weight: 700; font-size: .95rem;
  border: 1px solid var(--primary);
}
.btn-solid { background: var(--primary); color: #fff; }
.btn-solid:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
.btn-ghost { color: var(--primary); }
.btn-ghost:hover { background: var(--primary); color: #fff; }

/* Research interests */
.interest-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.interest { background: #fff; border: 1px solid var(--border); border-radius: 6px; padding: 20px 22px; }
.interest i { font-size: 1.5rem; color: var(--primary); margin-bottom: .6rem; display: block; }
.interest h3 { font-size: 1.12rem; margin: 0 0 .35rem; }
.interest p { margin: 0; color: var(--muted); font-size: .95rem; line-height: 1.55; }

/* News */
.news-heading { font-size: 1.5rem; margin: 2.2rem 0 .4rem; padding-bottom: .4rem; border-bottom: 1px solid #e5e5e5; }
.news { list-style: none; padding: 0; margin: 0; }
.news li { display: grid; grid-template-columns: 110px 1fr; gap: 18px; padding: 14px 0; border-bottom: 1px solid #eee; }
.news li:last-child { border-bottom: 0; }
.news-date { font-family: "Montserrat", sans-serif; font-weight: 700; font-size: .85rem; color: var(--primary); padding-top: 3px; }
.news p { margin: 0; }
.news-tag {
  display: inline-block; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
  background: var(--primary-soft); color: var(--primary-dark); border-radius: 3px; padding: 1px 7px; margin-right: 6px;
  vertical-align: 2px;
}

/* ---------- Publications ---------- */
.pub-group { font-size: 1.45rem; margin: 2.6rem 0 1.2rem; padding-bottom: .4rem; border-bottom: 1px solid #e5e5e5; }
.pub-group:first-child { margin-top: 0; }
.pub { margin-bottom: 1.8rem; }
.pub-icon { color: var(--primary); margin-right: 6px; }
.pub-title { font-weight: 700; }
.pub-meta { color: var(--muted); }
.pub-links { margin: .45rem 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.btn {
  display: inline-block; padding: 4px 9px;
  font: 400 .78rem/1.5 "Roboto", sans-serif;
  color: var(--primary); background: transparent;
  border: 1px solid var(--primary); border-radius: 4px; cursor: pointer;
  transition: all .15s;
}
.btn:hover, .btn.active { background: var(--primary); color: #fff; }
.toggle-box {
  display: none; margin-top: .7rem; padding: 12px 16px;
  background: var(--alt-bg); border-left: 3px solid var(--primary);
  font-size: .95rem; line-height: 1.6;
}
.toggle-box.open { display: block; }
.highlight {
  display: inline-block; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em;
  color: #fff; background: var(--primary); border-radius: 3px; padding: 1px 7px; margin-left: 4px; vertical-align: 2px;
}

/* ---------- Cards (teaching) ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.card { border: 1px solid var(--border); border-radius: 6px; padding: 20px 22px; background: #fff; }
.card-kicker { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--primary); }
.card h3 { font-size: 1.15rem; margin: .3rem 0 .5rem; line-height: 1.35; }
.card-meta { color: var(--muted); font-size: .93rem; margin: 0; line-height: 1.5; }

/* ---------- CV: education + timeline ---------- */
.ul-edu { list-style: none; padding: 0; margin: 0; }
.ul-edu li { display: flex; gap: 14px; margin-bottom: 1.1rem; }
.ul-edu i { color: var(--primary); font-size: 1.25rem; margin-top: 4px; }
.ul-edu p { margin: 0; line-height: 1.4; }
.ul-edu .institution { color: var(--muted); font-size: .95rem; }

.timeline { position: relative; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 8px; bottom: 8px; width: 1px; background: #ccc; }
.exp {
  position: relative; background: #fff; border: 1px solid var(--border); border-radius: 6px;
  padding: 18px 20px; margin-bottom: 18px;
}
.exp::before {
  content: ""; position: absolute; left: -31px; top: 22px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--primary); border: 2px solid #fff; box-shadow: 0 0 0 1px #ccc;
}
.exp-meta { float: right; text-align: right; color: var(--muted); font-size: .9rem; line-height: 1.5; margin-left: 16px; }
.exp-title { font-size: 1.12rem; margin: 0 0 .2rem; color: var(--muted); }
.exp-org { font-size: 1.04rem; margin: 0; }
.exp p { margin: .4rem 0 0; clear: right; }

/* ---------- Media ---------- */
.outlets { display: flex; flex-wrap: wrap; align-items: center; gap: 22px 34px; margin: 1.8rem 0 0; padding: 0; list-style: none; }
.outlets li { display: flex; align-items: center; }
.outlets img {
  height: 26px; width: auto; max-width: 150px; display: block;
  transition: transform .2s;
}
.outlets a:hover img { transform: scale(1.08); }
@media (max-width: 860px) { .outlets { gap: 16px 24px; } .outlets img { height: 20px; max-width: 120px; } }
.media-list { list-style: none; padding: 0; margin: 0; }
.media-list li { padding: 12px 0; border-bottom: 1px solid #eee; }
.media-list li:last-child { border-bottom: 0; }
.media-list a { display: block; line-height: 1.45; }
.media-list span { color: var(--muted); font-size: .88rem; }
.lang { font-size: .68rem; font-weight: 700; border: 1px solid #ccc; color: #888; border-radius: 3px; padding: 0 5px; margin-left: 6px; vertical-align: 1px; }

/* ---------- Contact ---------- */
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { display: flex; gap: 16px; margin-bottom: 1.2rem; }
.contact-list i { color: var(--primary); font-size: 1.2rem; width: 22px; margin-top: 4px; text-align: center; }
.map { width: 100%; height: 320px; border: 0; border-radius: 6px; }

footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 28px 20px 22px; border-top: 1px solid #eee; }
footer p { margin: .6rem 0 0; }

/* ---------- Mobile ---------- */
@media (max-width: 860px) {
  .row { flex-direction: column; gap: 28px; }
  .col-side { flex: none; }
  .page-header h1 { font-size: 2.2rem; }
  .page-header { padding: 40px 0 28px; }
  section { padding: 48px 0 40px; }
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 62px; left: 0; right: 0;
    flex-direction: column; background: var(--primary); padding: 6px 20px 14px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { color: #fff; }
  .nav-links a.active { border-bottom-color: transparent; text-decoration: underline; }
  .exp-meta { float: none; text-align: left; margin: 0 0 .3rem; }
  .news li { grid-template-columns: 1fr; gap: 2px; }
}
.logo-note { color: var(--muted); font-size: .78rem; margin: 2rem 0 0; }