:root {
  --page-bg: #ffffff;
  --sidebar-bg: #f2f2f2;
  --accent: #5c6bc0;
  --text: #2e2f36;
  --subtext: #555;
  --muted: #777;
  --border: #ddd;
}
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body { font-family:'Inter',sans-serif; background:var(--page-bg); color:var(--text); line-height:1.6; }
a { color:var(--accent); text-decoration:none; transition:color .2s; }
a:hover { color:#3f51b5; }
ul { list-style:none; }

/* Layout */
.layout { display:flex; min-height:100vh; }
.sidebar { width:220px; background:var(--sidebar-bg); padding:2rem 1rem; display:flex; flex-direction:column; }
.sidebar h1 { font-size:1.5rem; margin-bottom:2rem; }
.sidebar nav a { display:block; padding:.75rem 0; font-weight:600; border-radius:4px; }
.sidebar nav a:hover { background:rgba(0,0,0,0.05); }

.main-content { flex:1; padding:2rem; }
.lang-switch { text-align:right; margin-bottom:1rem; }
.lang-switch a { font-size:.9rem; color:var(--muted); margin-left:1rem; }

/* Profile Header */
.profile-header { display:flex; align-items:center; margin-bottom:2rem; }
.profile-header img { width:160px; height:160px; border-radius:50%; object-fit:cover; margin-right:1.5rem; }
.profile-header h2 { font-size:1.8rem; font-weight:700; }
.social-icons { margin:.5rem 0; }
.social-icons a { margin-right:.75rem; font-size:1.4rem; color:var(--accent); }
.social-icons a:hover { color:#3f51b5; }
.subtext { color:var(--subtext); font-size:.95rem; margin-bottom:.75rem; }
.btn-cv { display:inline-block; background:var(--accent); color:var(--page-bg); padding:.6rem 1.2rem; border-radius:4px; font-weight:600; }
.btn-cv:hover { background:#3f51b5; }

/* Section Titles */
section { margin-bottom:2.5rem; }
.section-title { position:relative; font-size:1.4rem; font-weight:700; margin-bottom:1rem; }
.section-title::after { content:''; position:absolute; bottom:-4px; left:0; width:50px; height:4px; background:var(--accent); border-radius:2px; }

/* Publication List */
.publication-list { display:grid; gap:1rem; margin-top:1rem; }
.publication-item { border:1px solid var(--border); border-radius:6px; padding:2rem; }
.publication-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:.75rem; }
.publication-header .title { display:flex; align-items:center; font-weight:600; }
.publication-header .pub-icons a { margin-left:.5rem; font-size:1.2rem; color:var(--accent); }
.publication-content { display:flex; gap:1rem; }
.pub-thumb { width:200px; height:auto; object-fit:contain; border-radius:4px; flex-shrink:0; }
.publication-detail .authors { color:var(--muted); font-size:.95rem; margin-bottom:.5rem; }
.publication-detail .venue { font-size:.95rem; margin-bottom:.5rem; }
.publication-detail .notes { font-size:.9rem; color:green; }
.pub-label { background: rgba(255,255,255,0.8); border: 1px solid #000; color: #000; border-radius: 3px; padding: 2px 6px; font-size: 0.75rem; margin: 0 0.5rem; opacity: 0.9; }

/* Toast notification */
#toast {
  visibility: hidden;
  min-width: 180px;
  background-color: #333;
  color: #fff;
  text-align: center;
  border-radius: 4px;
  padding: 0.5rem;
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1000;
}
#toast.show {
  visibility: visible;
  animation: fadein .4s, fadeout .4s 2s;
}
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeout { from { opacity: 1; } to { opacity: 0; } }