/* ---------- Shared base ---------- */
:root{
  --bg:#fff;
  --text:#111;
  --muted:#5b5b5b;
  --border:#e8e8e8;
  --soft:#f6f6f6;
  --max:1120px;
  --radius:14px;
  --shadow: 0 10px 30px rgba(0,0,0,.06);
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height:1.6;
  color:var(--text);
  background:var(--bg);
}
img{ display:block; max-width:100%; }
.container{ width:min(var(--max), calc(100% - 2rem)); margin-inline:auto; }

.skip{
  position:absolute; left:-999px; top:1rem;
  background:#000; color:#fff;
  padding:.75rem 1rem; border-radius:999px;
}
.skip:focus{ left:1rem; z-index:9999; }
:focus-visible{ outline:3px solid #2b7cff; outline-offset:3px; }

.kicker{
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:.8rem;
  color:var(--muted);
  margin:0 0 .75rem;
}
.muted{ color:var(--muted); }

/* ---------- Header (profile) ---------- */
.site-header{
  position:sticky; top:0; z-index:1000;
  background:rgba(255,255,255,.75);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:.9rem 0;
}
.logo{ font-weight:650; text-decoration:none; }
.subnav{ display:flex; gap:1rem; }
.subnav a{ color:var(--muted); text-decoration:none; font-size:.95rem; }
.subnav a:hover{ color:var(--text); }

@media (max-width: 640px){
  .subnav{ display:none; }
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:.85rem 1.1rem;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--text);
  text-decoration:none;
  font-weight:650;
}
.btn:hover{ border-color:#cfcfcf; text-decoration:none; }
.btn.primary{
  background:#111;
  border-color:#111;
  color:#fff;
}

/* ---------- Profile layout ---------- */
.profile{
  padding: clamp(1.5rem, 4vw, 2.5rem) 0;
}

.profile-hero{
  display:grid;
  grid-template-columns: 160px 1fr;
  gap:1.5rem;
  align-items:center;
  padding-bottom: 1.5rem;
  border-bottom:1px solid var(--border);
}
.profile-hero img{
  width:160px; height:160px;
  border-radius: 18px;
  object-fit:cover;
  border:1px solid var(--border);
  background:var(--soft);
}
.profile-hero h1{
  margin:.2rem 0 .2rem;
  letter-spacing:-.02em;
  line-height:1.1;
}
.role{
  margin:0 0 .75rem;
  color:var(--muted);
  font-weight:600;
}
.lead{ margin:0 0 1.25rem; max-width: 70ch; color:var(--muted); }
.hero-actions{ display:flex; gap:.75rem; flex-wrap:wrap; }

@media (max-width: 700px){
  .profile-hero{ grid-template-columns: 1fr; }
  .profile-hero img{ width:120px; height:120px; }
}

/* ---------- Sections ---------- */
.section{ padding: 1.75rem 0; }
.section-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:1rem;
  flex-wrap:wrap;
}
.section h2{
  margin:0;
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
  letter-spacing:-.02em;
}
.section-head p{ margin:.25rem 0 0; }

/* ---------- Skills chips ---------- */
.chips{
  list-style:none;
  padding:0;
  margin:1rem 0 0;
  display:flex;
  flex-wrap:wrap;
  gap:.6rem;
}
.chips li{
  padding:.55rem .8rem;
  border-radius:999px;
  border:1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-weight:600;
  font-size:.92rem;
}

/* ---------- Cards (experience / academic) ---------- */
.cards{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap:1rem;
  margin-top:1rem;
}
.card{
  border:1px solid var(--border);
  border-radius: var(--radius);
  background:#fff;
  padding:1.1rem 1.1rem 1rem;
}
.card h3{
  margin:0 0 .4rem;
  font-size:1.05rem;
  line-height:1.25;
}
.meta{
  margin:0 0 .6rem;
  color:var(--muted);
  font-weight:650;
  font-size:.92rem;
}
.card p{ margin:.4rem 0 0; color:var(--muted); }

/* subtle left accent like your old cards, but cleaner */
.card--ongoing{ border-left: 4px solid #1f8a5b; }
.card--acad{ border-left: 4px solid #6b3cff; }

/* ---------- Footer ---------- */
.footer{ padding: 2rem 0; }
.footer-inner{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:1rem;
  border-top:1px solid var(--border);
  padding-top:1.25rem;
}

/* --- Card actions --- */
.card-actions{
  display:flex;
  gap:.6rem;
  flex-wrap:wrap;
  margin-top:.9rem;
}
.btn.small{
  padding:.55rem .85rem;
  font-size:.92rem;
}

/* --- Modal PDF viewer --- */
.modal{
  position:fixed;
  inset:0;
  display:none;
  z-index:2000;
}
.modal.is-open{ display:block; }

.modal-backdrop{
  position:absolute;
  inset:0;
  background: rgba(0,0,0,.5);
}

.modal-panel{
  position:relative;
  width:min(1100px, calc(100% - 2rem));
  height:min(85vh, 900px);
  margin: 7vh auto 0;
  background:#fff;
  border-radius: 16px;
  border:1px solid var(--border);
  box-shadow: var(--shadow);
  display:flex;
  flex-direction:column;
  overflow:hidden;
}

.modal-header, .modal-footer{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding: .85rem 1rem;
  border-bottom:1px solid var(--border);
}
.modal-footer{
  border-bottom:none;
  border-top:1px solid var(--border);
  justify-content:flex-end;
}

.icon-btn{
  border:1px solid var(--border);
  background:#fff;
  border-radius:999px;
  padding:.4rem .65rem;
  cursor:pointer;
}

.modal-body{
  flex:1;
  background: var(--soft);
}

#pdfFrame{
  width:100%;
  height:100%;
  border:0;
  background:#fff;
}