/* Base */
:root{
  --bg:#f2eef7;
  --text:#1b1b1d;
  --muted:#5a5a5e;
  --brand:#222228;
  --link:#3a52ff;
  --card:#ffffff;
  --shadow:0 8px 24px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: "Source Sans 3", system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
}

/* Top Nav */
.navbar{
  position:sticky; top:0; z-index:999;
  width:100%; background:var(--brand); color:#fff;
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 18px;
}
.navbar .brand{font-weight:700; font-size:26px; letter-spacing:.2px}
.navbar .links a{
  color:#fff; text-decoration:none; margin-left:28px; font-weight:600;
  opacity:.95;
}
.navbar .links a:hover{opacity:1; text-decoration:underline}

/* Wrapper */
.container{max-width:1080px; margin:0 auto; padding:42px 18px}

/* About layout (two columns) */
.about{
  display:grid; grid-template-columns: 1.2fr .8fr; gap:48px;
}
@media (max-width: 900px){
  .about{grid-template-columns:1fr; gap:28px}
}

/* Headings */
h1{margin:0 0 24px 0; font-size:32px}
h2{margin:0 0 16px 0; font-size:28px}
p{margin:0 0 14px 0}
a{color:var(--link)}

/* Portrait card + icons */
.portrait-card{
  background:var(--card); border-radius:18px; box-shadow:var(--shadow);
  padding:16px; text-align:center;
}
.portrait{
  width:100%; border-radius:12px; display:block; object-fit:cover;
}
.icon-row{
  margin-top:16px; display:flex; justify-content:center; gap:16px;
}
.icon-btn{
  width:44px; height:44px; border-radius:12px; background:#f6f7fb; display:inline-flex;
  align-items:center; justify-content:center; box-shadow:var(--shadow); text-decoration:none;
}
.icon-btn:hover{transform:translateY(-1px)}
.icon-btn svg{width:22px; height:22px; fill:#222}

/* Research list */
.paper{
  background:var(--card); padding:18px; border-radius:14px; box-shadow:var(--shadow);
  margin-bottom:14px;
}
.paper .title{font-weight:600}
.paper .meta{color:var(--muted); font-size:14px;}

/* CV page */
.frame{
  background:var(--card); padding:12px; border-radius:14px; box-shadow:var(--shadow);
}

h1, h2, h3 {
  font-family: "Source Sans 3", sans-serif;
  font-weight: 700;
}

p {
  text-align: justify;
  text-justify: inter-word;
}


/* Footer (tiny) */
.footer{color:var(--muted); font-size:13px; margin-top:36px}