:root {
  --navy: #0c2d48;
  --navy-2: #163d5c;
  --blue: #2a7db8;
  --blue-light: #eaf4fb;
  --ink: #14202b;
  --muted: #5b6b79;
  --white: #ffffff;
  --line: #dbe5ec;
  --shadow: 0 18px 50px rgba(12,45,72,.12);
  --radius: 22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,sans-serif;color:var(--ink);background:#fff;line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(219,229,236,.8)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--navy)}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--navy),var(--blue));color:white;display:grid;place-items:center;font-size:.85rem}
.nav{display:flex;gap:24px;font-size:.93rem;font-weight:600;color:#415361}
.nav a:hover{color:var(--blue)}
.menu-toggle{display:none;border:0;background:transparent;font-size:1.7rem;color:var(--navy)}
.hero{padding:86px 0 74px;background:radial-gradient(circle at 85% 20%,#dceeff 0,transparent 33%),linear-gradient(180deg,#f8fbfe 0%,#fff 100%)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:center}
.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-weight:800;color:var(--blue);font-size:.78rem;margin:0 0 16px}
h1,h2,h3{line-height:1.18;margin-top:0;color:var(--navy)}
h1{font-family:Merriweather,serif;font-size:clamp(3rem,6vw,5.3rem);margin-bottom:14px;letter-spacing:-.04em}
.hero h2{font-size:clamp(1.25rem,2vw,1.75rem);font-weight:600;color:#36566e;margin-bottom:22px}
.hero-lead{font-size:1.15rem;max-width:760px;color:var(--muted)}
.credentials{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0}
.credentials span,.tag{font-size:.78rem;font-weight:700;padding:8px 11px;border-radius:999px;background:var(--blue-light);color:var(--navy)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border-radius:12px;font-weight:700;border:1px solid transparent;transition:.25s}
.btn-primary{background:var(--navy);color:white}.btn-primary:hover{background:var(--blue)}
.btn-secondary{border-color:#b9ccd9;background:white}.btn-secondary:hover{border-color:var(--blue);color:var(--blue)}
.btn-light{background:white;color:var(--navy)}
.hero-meta{display:grid;gap:2px;font-size:.92rem;color:#617483}.hero-meta span:first-child{font-weight:700;color:var(--navy)}
.hero-portrait{position:relative;justify-self:end}
.portrait-frame{width:min(420px,85vw);aspect-ratio:4/5;border-radius:36px;overflow:hidden;box-shadow:var(--shadow);border:10px solid white;background:#dbe9f6}
.portrait-frame img{width:100%;height:100%;object-fit:cover;object-position:center 18%}
.portrait-badge {
    position: absolute;
    left: 50%;
    bottom: 32px;
    transform: translateX(-50%);

    width: max-content;
    max-width: 88%;

    padding: 16px 28px;
    background: #0d3554;
    color: white;

    border-radius: 22px;

    font-weight: 700;
    font-size: 1rem;
    line-height: 1.3;
    text-align: center;

    white-space: nowrap;
    z-index: 2;

    box-shadow: 0 12px 30px rgba(13, 53, 84, 0.18);
}
.section{padding:96px 0}
.section-soft{background:#f6f9fb}
.section-dark{background:var(--navy);color:#dbe8f0}
.section-dark h2,.section-dark h3{color:white}
.section-dark .eyebrow{color:#77bce7}
.section-dark .section-intro{color:#c2d1dc}
.two-col{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;align-items:start}
.section-heading h2{font-size:clamp(2rem,4vw,3.2rem);letter-spacing:-.03em;margin-bottom:18px}
.section-intro{color:var(--muted);max-width:720px}
.centered{text-align:center;max-width:760px;margin:0 auto 42px}
.prose{font-size:1.08rem;color:#485b68}
.cards{display:grid;gap:18px}.six-grid{grid-template-columns:repeat(3,1fr)}
.card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 10px 30px rgba(12,45,72,.05)}
.icon{width:46px;height:46px;border-radius:13px;background:var(--blue-light);color:var(--blue);display:grid;place-items:center;font-weight:800;margin-bottom:18px}
.card h3{font-size:1.15rem;margin-bottom:8px}.card p{color:var(--muted);margin:0}
.timeline{margin-top:40px;border-left:2px solid #b9d3e5;padding-left:28px;display:grid;gap:26px}
.timeline-item{display:grid;grid-template-columns:150px 1fr;gap:22px;position:relative;padding:2px 0 8px}
.timeline-item:before{content:"";position:absolute;left:-36px;top:7px;width:14px;height:14px;border-radius:50%;background:var(--blue);border:4px solid white;box-shadow:0 0 0 1px #9cc2da}
.timeline-date{font-weight:800;color:var(--blue);font-size:.9rem}.timeline-item h3{margin-bottom:4px}.timeline-item p{margin:0;color:var(--muted)}
.research-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:40px}
.research-card{padding:30px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);background:rgba(255,255,255,.05)}
.research-card p{color:#c6d6e0}.research-card a{color:#9ed5f5;font-weight:700}
.center-action{text-align:center;margin-top:32px}
.teaching-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}
.teaching-list{display:grid;gap:16px}.teaching-list div{background:white;border:1px solid var(--line);border-radius:16px;padding:20px 22px;display:flex;flex-direction:column;gap:4px}.teaching-list span{color:var(--muted)}
.contact-section{padding-top:70px}.contact-card{background:linear-gradient(135deg,#0c2d48,#19557e);color:white;border-radius:30px;padding:48px;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}.contact-card h2{color:white}.contact-card .eyebrow{color:#9ed5f5}.contact-card p{color:#d6e4ed}.contact-links{display:grid;gap:12px}.contact-links a{padding:13px 15px;border-radius:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);font-weight:600}.contact-links a:hover{background:rgba(255,255,255,.16)}
footer{padding:30px 0;border-top:1px solid var(--line);color:#6b7d89;font-size:.9rem}.footer-inner{display:flex;justify-content:space-between;gap:20px}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}.reveal.visible{opacity:1;transform:none}
@media(max-width:900px){.nav{display:none;position:absolute;top:76px;left:20px;right:20px;background:white;box-shadow:var(--shadow);border-radius:16px;padding:20px;flex-direction:column}.nav.open{display:flex}.menu-toggle{display:block}.hero-grid,.two-col,.teaching-grid,.contact-card{grid-template-columns:1fr}.hero-portrait{justify-self:center}.portrait-badge{left:10px}.six-grid{grid-template-columns:repeat(2,1fr)}.research-grid{grid-template-columns:1fr}.timeline-item{grid-template-columns:1fr;gap:3px}.hero{padding-top:60px}}
@media(max-width:620px){.container{width:min(100% - 28px,1180px)}.brand-text{display:none}.six-grid{grid-template-columns:1fr}.section{padding:72px 0}.hero-actions{flex-direction:column;align-items:stretch}.btn{width:100%}.contact-card{padding:30px}.footer-inner{flex-direction:column}.portrait-frame{width:100%}}

/* ================================
   Projects
================================ */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    margin-top: 40px;
}

.project-card {
    background: #ffffff;
    border: 1px solid rgba(13, 53, 84, 0.10);
    border-radius: 24px;
    padding: 32px;
    box-shadow: 0 14px 40px rgba(13, 53, 84, 0.07);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(13, 53, 84, 0.13);
}

.project-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    margin-bottom: 22px;
}

.project-type {
    color: #176b87;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.project-status {
    background: #eef7fa;
    color: #176b87;
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
}

.project-card h3 {
    color: #0d3554;
    font-size: 1.35rem;
    margin-bottom: 14px;
}

.project-card p {
    line-height: 1.7;
    margin-bottom: 22px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 25px;
}

.project-tags span {
    background: #f2f6f8;
    color: #38576b;
    padding: 7px 11px;
    border-radius: 8px;
    font-size: 0.76rem;
    font-weight: 600;
}

.project-link {
    display: inline-flex;
    align-items: center;
    color: #0d5f82;
    font-weight: 700;
    text-decoration: none;
    transition: gap 0.2s ease, color 0.2s ease;
}

.project-link:hover {
    color: #092e49;
}

/* Mobile */

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-card {
        padding: 25px;
    }
}

.research-profile-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 28px;
    margin-top: 45px;
    width: 100%;
}

.research-profile-buttons .btn {
    background: transparent;
    color: #ffffff;
    border: 2px solid #b9d8eb;
    border-radius: 14px;
    padding: 14px 26px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.25s ease;
}

.research-profile-buttons .btn:hover {
    background: #ffffff;
    color: #0d3554;
    border-color: #ffffff;
    transform: translateY(-2px);
}

@media (max-width: 600px) {
    .research-profile-buttons {
        flex-direction: column;
        gap: 14px;
        margin-top: 32px;
    }
}