@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,300;1,400&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&display=swap');

:root {
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans:  'DM Sans', system-ui, sans-serif;
  --bg:       #ffffff;
  --surface:  #ffffff;
  --ink:      #1C1C1E;
  --mid:      #444;
  --quiet:    #888;
  --navy:     #0e2040;
  --navy-mid: #1a3a6a;
  --navy-light: rgba(14,32,64,0.08);
  --rule:     #E4E0D8;
  --nav-h:    66px;
  --wide:     1020px;
  --text:     680px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; background: #ffffff; }
body { font-family: var(--sans); background: var(--bg); color: var(--ink); line-height: 1.7; font-weight: 300; overflow-x: hidden; }
a { color: var(--navy-mid); text-decoration: none; }
a:hover { text-decoration: underline; }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ── NAV ── */
nav.main-nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h); z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  overflow: visible;
}
.nav-inner {
  max-width: var(--wide); margin: 0 auto; padding: 0 2rem;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; text-decoration: none; opacity: .9; transition: opacity .2s; }
.nav-logo:hover { opacity: 1; text-decoration: none; }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-size: 0.88rem; color: #555; transition: color .2s; letter-spacing: .01em; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); text-decoration: none; }

.nav-hamburger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; padding: .25rem; }
.nav-hamburger span { display: block; width: 22px; height: 1.5px; background: var(--ink); transition: .2s; }


/* ── NAV WAVE ACCENT ── */
.nav-wave {
  position: absolute; bottom: -9px; left: 0; right: 0;
  height: 10px; overflow: visible; pointer-events: none; z-index: 1;
}
.nav-wave svg { display: block; width: 100%; height: 10px; }

@media (max-width: 600px) {
  .nav-hamburger { display: flex; }
  .nav-links {
    display: none; position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: var(--bg); flex-direction: column; padding: 1.25rem 2rem 1.75rem;
    border-bottom: 1px solid var(--rule); gap: 1rem;
  }
  .nav-links.open { display: flex; }
}
#nav-placeholder { height: var(--nav-h); }

/* ── LAYOUT ── */
.container { max-width: var(--wide); margin: 0 auto; padding: 0 2rem; }
.container-text { max-width: var(--text); margin: 0 auto; padding: 0 2rem; }

/* ── BUTTONS ── */
.btn {
  display: inline-block; padding: .55rem 1.2rem;
  font-family: var(--sans); font-size: .82rem; font-weight: 400;
  border-radius: 2px; border: 1px solid transparent;
  cursor: pointer; text-decoration: none; transition: .2s;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--navy); color: #fff; border-color: var(--navy); }
.btn-primary:hover { background: var(--navy-mid); border-color: var(--navy-mid); }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-outline:hover { border-color: var(--navy); color: var(--navy); }

/* ── PAGE CONTENT ── */
.page-wrap { padding: 5rem 0 0; }

.page-intro {
  padding-bottom: 0; margin-bottom: 0; margin-top: 1.5rem;
  border-bottom: none;
}
.page-intro h1 {
  font-family: var(--serif); font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 300; margin-bottom: .6rem; letter-spacing: -.01em;
}
.page-intro p { font-size: .95rem; color: var(--quiet); max-width: 500px; line-height: 1.8; margin-top: .5rem; }
.page-wave-divider {
  width: 100%; overflow: hidden; line-height: 0; margin: 2rem 0 2.5rem;
}
.page-wave-divider svg { display: block; width: 100%; }

/* ── RESEARCH SECTIONS ── */
.research-section {
  display: grid; grid-template-columns: 160px 1fr;
  gap: 2rem 3rem; padding: 2.5rem 0;
  border-bottom: 1px solid var(--rule);
}
.research-section:last-child { border-bottom: none; padding-bottom: 0; }
.rs-label {
  font-size: .68rem; text-transform: uppercase; letter-spacing: .12em;
  color: var(--navy-mid); display: block; margin-bottom: .35rem; line-height: 1.6;
  padding-top: .2rem;
}
.rs-body h2 {
  font-family: var(--serif); font-size: 1.35rem; font-weight: 400;
  margin-bottom: .9rem; color: var(--ink);
}
.rs-body p { font-size: .975rem; color: var(--mid); line-height: 1.8; }
.rs-body ul { margin: .75rem 0 0 1.1rem; list-style: disc; }
.rs-body li { font-size: .9rem; color: var(--mid); line-height: 1.9; }

@media (max-width: 640px) {
  .research-section { grid-template-columns: 1fr; gap: .5rem; }
}

/* ── PUBLICATIONS ── */
.pub-group { margin-bottom: 3rem; }
.pub-group-title {
  font-family: var(--serif); font-size: 1.1rem; font-weight: 400;
  padding-bottom: .6rem; margin-bottom: 0; border-bottom: 1px solid var(--rule);
}
.pub-item {
  display: grid; grid-template-columns: 100px 1fr;
  gap: .5rem 1.75rem; padding: 1.2rem 0;
  border-bottom: 1px solid var(--rule);
}
.pub-item:last-child { border-bottom: none; }
.pub-venue { font-size: .72rem; color: var(--navy-mid); text-transform: uppercase; letter-spacing: .07em; padding-top: .15rem; }
.pub-title { font-size: .95rem; color: var(--ink); line-height: 1.5; margin-bottom: .2rem; }
.pub-authors { font-size: .83rem; color: var(--quiet); }

@media (max-width: 580px) {
  .pub-item { grid-template-columns: 1fr; gap: .25rem; }
}

/* ── BLOG LIST ── */
.post-list-item {
  display: block; padding: 1.4rem 0;
  border-bottom: 1px solid var(--rule);
  color: inherit; text-decoration: none;
}
.post-list-item:first-child { border-top: 1px solid var(--rule); }
.post-list-item:hover { text-decoration: none; }
.post-list-item:hover .pli-title { color: var(--navy); }
.pli-meta { font-size: .72rem; color: var(--quiet); display: flex; gap: .75rem; margin-bottom: .4rem; }
.pli-cat { color: var(--navy-mid); }
.pli-title {
  font-family: var(--serif); font-size: 1.2rem; font-weight: 400;
  color: var(--ink); margin-bottom: .3rem; transition: color .2s; line-height: 1.35;
}
.pli-excerpt { font-size: .875rem; color: var(--mid); line-height: 1.65; }

/* ── BLOG POST ── */
.post-page { max-width: 660px; margin: 0 auto; padding: 5.5rem 2rem 0; }
.post-page-meta { font-size: .75rem; color: var(--quiet); display: flex; gap: .75rem; margin-bottom: .5rem; }
.post-page-cat { color: var(--navy-mid); }
.post-page h1 {
  font-family: var(--serif); font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 400; line-height: 1.3; margin-bottom: 2rem;
  padding-bottom: 1.75rem; border-bottom: 1px solid var(--rule);
}
.post-body p { font-size: 1rem; line-height: 1.85; color: var(--mid); margin-bottom: 1.25rem; }
.post-body h3 { font-family: var(--serif); font-size: 1.2rem; font-weight: 400; color: var(--ink); margin: 2rem 0 .75rem; }
.post-back { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--rule); }
.post-back a { font-size: .875rem; color: var(--quiet); }
.post-back a:hover { color: var(--navy); }

/* ── CONTACT ── */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 3rem 4rem; align-items: start; margin-top: 1.5rem;
}
.contact-section h2 {
  font-family: var(--serif); font-size: 1.2rem; font-weight: 400;
  margin-bottom: 1rem; padding-bottom: .6rem; border-bottom: 1px solid var(--rule);
}
.contact-links { display: flex; flex-direction: column; gap: .6rem; }
.contact-links a { font-size: .95rem; color: var(--mid); }
.contact-links a:hover { color: var(--navy); text-decoration: none; }
.cl-label { font-size: .72rem; color: var(--quiet); display: block; }
.contact-body p { font-size: .95rem; color: var(--mid); line-height: 1.8; }

@media (max-width: 640px) {
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* ── HOMEPAGE ── */
.hero { padding: 6.5rem 0 0; }
.hero-grid { display: grid; grid-template-columns: 1fr 200px; gap: 4rem; align-items: start; }
.hero h1 { font-family: var(--serif); font-size: clamp(2.2rem, 4.5vw, 3rem); font-weight: 400; line-height: 1.15; margin-bottom: .6rem; }
.hero-role { font-size: .875rem; color: var(--quiet); margin-bottom: 1.75rem; }
.hero-bio { font-size: 1.025rem; line-height: 1.8; color: var(--mid); }
.hero-actions { display: flex; gap: .75rem; margin-top: 2rem; flex-wrap: wrap; }
.portrait-wrap { display: flex; flex-direction: column; gap: .85rem; }
.portrait-frame { width: 100%; aspect-ratio: 3/4; background: linear-gradient(145deg,#1a3a6a,#0e2040); border-radius: 3px; overflow: hidden; position: relative; }
.portrait-frame img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; }
.portrait-initials { font-family: var(--serif); font-size: 2.5rem; color: rgba(255,255,255,.3); }
.portrait-links { display: flex; flex-direction: column; gap: .3rem; }
.portrait-links a { font-size: .78rem; color: var(--quiet); }
.portrait-links a:hover { color: var(--navy); text-decoration: none; }
.highlights { border-top: 1px solid var(--rule); margin-top: 4rem; padding-top: 3rem; display: grid; grid-template-columns: repeat(3,1fr); gap: 2.5rem; }
.hl-label { font-size: .68rem; text-transform: uppercase; letter-spacing: .12em; color: var(--navy-mid); display: block; margin-bottom: .4rem; }
.highlight-item h3 { font-family: var(--serif); font-size: 1.1rem; font-weight: 400; margin-bottom: .5rem; }
.highlight-item p { font-size: .875rem; color: var(--mid); line-height: 1.65; }
.highlight-item a { font-size: .82rem; margin-top: .6rem; display: inline-block; color: var(--navy-mid); }
.home-writing { margin-top: 4rem; padding-top: 3rem; border-top: 1px solid var(--rule); }
.home-writing-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 1.75rem; }
.home-writing-header h2 { font-family: var(--serif); font-size: 1.35rem; font-weight: 400; }
.home-writing-header a { font-size: .82rem; color: var(--quiet); }
.home-writing-header a:hover { color: var(--navy); }

@media (max-width: 700px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .portrait-wrap { flex-direction: row; align-items: center; }
  .portrait-frame { width: 88px; aspect-ratio: 3/4; }
  .portrait-links { flex-direction: row; flex-wrap: wrap; gap: .4rem 1rem; }
  .highlights { grid-template-columns: 1fr; gap: 2rem; }
}

/* ── WAVE FOOTER ── */
.wave-footer {
  margin-top: 5rem;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  pointer-events: none;
}
.wave-footer svg { display: block; width: 100%; }

/* ── FOOTER ── */
footer {
  background: var(--navy);
  padding: 1.4rem 0;
}
.footer-inner {
  max-width: var(--wide); margin: 0 auto; padding: 0 2rem;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: .5rem;
}
.footer-copy { font-size: .75rem; color: rgba(255,255,255,.4); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: .75rem; color: rgba(255,255,255,.4); }
.footer-links a:hover { color: rgba(255,255,255,.85); text-decoration: none; }

/* ── FADE IN ── */
.fade-in { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
.fade-in.visible { opacity: 1; transform: none; }
.fade-in-delay-1 { transition-delay: .1s; }
.fade-in-delay-2 { transition-delay: .2s; }
.fade-in-delay-3 { transition-delay: .3s; }