:root{
  /* Light mode palette */
  --bg0:#f7f9ff;               /* soft white */
  --bg1:#ffffff;               /* pure white */
  --text:rgba(10,16,28,.94);   /* near-black */
  --muted:rgba(10,16,28,.70);
  --muted2:rgba(10,16,28,.55);

  --line:rgba(10,16,28,.14);

  /* navy / sky accents */
  --accent: rgba(32, 60, 163, 0.95);  /* navy-blue */
  --accent2:rgba(90, 170, 255, .95);/* sky-blue */

  /* status colors (still readable on white) */
  --good:rgba(20, 160, 90, .95);
  --warn:rgba(200, 140, 0, .95);

  --shadow: 0 12px 34px rgba(10,16,28,.10);
  --radius: 18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--text);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;

  /* light “AI” background */
  background:
    radial-gradient(1200px 800px at 18% 8%, rgba(135, 187, 241, 0.16), transparent 55%),
    radial-gradient(900px 700px at 82% 18%, rgba(83, 110, 150, 0.12), transparent 55%),
    radial-gradient(900px 700px at 50% 110%, rgba(90,170,255,.10), transparent 60%),
    linear-gradient(180deg, var(--bg0), var(--bg1));

  overflow-x:hidden;
}

.bg-grid{
  position:fixed; inset:0; pointer-events:none; z-index:-1;
  background-image:
    linear-gradient(to right, rgba(10,16,28,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10,16,28,.06) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(closest-side, rgba(0,0,0,.45), transparent 75%);
  opacity:.45;
  animation: drift 14s linear infinite;
}
@keyframes drift{
  0%{transform:translate3d(0,0,0)}
  100%{transform:translate3d(-44px,-44px,0)}
}

.wrap{max-width:1100px; margin:0 auto; padding:28px 18px 44px;}

.topbar{
  display:flex; align-items:stretch; justify-content:space-between; gap:14px;
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.78));
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:18px;
  backdrop-filter: blur(8px);
}

.identity{display:flex; gap:14px; align-items:center; min-width: 0;}

.avatar{
  width:54px; height:54px; border-radius:14px;
  background:
    radial-gradient(10px 10px at 28% 30%, rgba(255,255,255,.95), transparent 55%),
    radial-gradient(14px 14px at 70% 35%, rgba(90,170,255,.55), transparent 60%),
    radial-gradient(16px 16px at 45% 70%, rgba(32,92,180,.45), transparent 60%),
    linear-gradient(135deg, rgba(90,170,255,.55), rgba(32,92,180,.35));
  border:1px solid rgba(10,16,28,.12);
  box-shadow: 0 10px 22px rgba(10,16,28,.14);
  position:relative;
  overflow:hidden;
}
.avatar:after{
  content:"";
  position:absolute; inset:-40%;
  background: conic-gradient(from 90deg, transparent, rgba(10,16,28,.10), transparent);
  animation: spin 6s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.id-text{min-width:0}
.name{font-size:22px; font-weight:780; margin:0; white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
.role{margin:2px 0 0; color:var(--muted); font-weight:600}

.chips{display:flex; flex-wrap:wrap; gap:8px; margin-top:10px}
.chip{
  display:inline-flex; align-items:center; gap:8px;
  padding:6px 10px; border-radius:999px;
  border:1px solid rgba(10,16,28,.12);
  background: rgba(255,255,255,.70);
  color:var(--muted);
  font-size:13px;
}
.dot{width:8px; height:8px; border-radius:50%; background: var(--accent)}
.dot.good{background: var(--good)}
.dot.warn{background: var(--warn)}

.actions{display:flex; flex-direction:column; gap:10px; min-width: 260px; justify-content:space-between;}
.row{display:flex; gap:10px; justify-content:flex-end; flex-wrap:wrap}

.btn{
  appearance:none;
  border:1px solid rgba(10,16,28,.14);
  background: rgba(255,255,255,.75);
  color:var(--text);
  padding:9px 12px;
  border-radius: 12px;
  font-weight:700;
  cursor:pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
  display:inline-flex; align-items:center; gap:8px;
  user-select:none;
  text-decoration:none;
}
.btn:hover{
  transform: translateY(-1px);
  background: rgba(255,255,255,.92);
  border-color: rgba(32,92,180,.28);
}
.btn.primary{
  background: linear-gradient(135deg, rgba(90,170,255,.22), rgba(32,92,180,.18));
  border-color: rgba(32,92,180,.30);
}

.seg{
  display:inline-flex;
  border:1px solid rgba(10,16,28,.14);
  border-radius: 12px;
  overflow:hidden;
  background: rgba(255,255,255,.65);
}
.seg button{
  border:0;
  background: transparent;
  color:var(--muted);
  padding:9px 12px;
  cursor:pointer;
  font-weight:800;
}
.seg button.active{
  background: rgba(90,170,255,.18);
  color: rgba(10,16,28,.92);
}

.meta{
  display:flex; flex-wrap:wrap; gap:10px; justify-content:flex-end;
  color:var(--muted2); font-size:13px;
}
.meta a{color:var(--accent); text-decoration:none}
.meta a:hover{text-decoration:underline}

.tabs{margin-top:16px; display:flex; gap:10px; flex-wrap:wrap;}
.tab{
  border:1px solid rgba(10,16,28,.14);
  background: rgba(255,255,255,.72);
  color:var(--muted);
  padding:10px 12px;
  border-radius: 999px;
  cursor:pointer;
  font-weight:800;
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
.tab:hover{transform: translateY(-1px); border-color: rgba(32,92,180,.28)}
.tab.active{
  color: rgba(10,16,28,.92);
  background: linear-gradient(135deg, rgba(90,170,255,.20), rgba(32,92,180,.14));
  border-color: rgba(32,92,180,.30);
}

.panel{
  margin-top:14px;
  border:1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.72);
  box-shadow: var(--shadow);
  overflow:hidden;
  backdrop-filter: blur(8px);
}
.panel-inner{padding:18px}

.grid{display:grid; gap:14px}
@media (min-width: 860px){
  .grid.two{grid-template-columns: 1.2fr .8fr}
  .grid.three{grid-template-columns: repeat(3, 1fr)}
}

.card{
  border:1px solid rgba(10,16,28,.14);
  background: rgba(255,255,255,.82);
  border-radius: 16px;
  padding:14px;
}
.card h3{margin:0 0 8px; font-size:15px}
.card p{margin:0; color:var(--muted)}

.kpi{display:flex; gap:10px; flex-wrap:wrap; margin-top:10px}
.pill{
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(10,16,28,.12);
  background: rgba(255,255,255,.70);
  color:var(--muted);
  font-size:13px;
  white-space:nowrap;
}

.timeline{display:grid; gap:12px}
.item{
  border:1px solid rgba(10,16,28,.14);
  background: rgba(255,255,255,.80);
  border-radius: 16px;
  padding:14px;
  transition: transform .12s ease, border-color .12s ease, box-shadow .12s ease;
}
.item:hover{
  transform: translateY(-1px);
  border-color: rgba(32,92,180,.26);
  box-shadow: 0 10px 22px rgba(10,16,28,.08);
}
.item-top{
  display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap;
  align-items:baseline;
}
.title{font-weight:900}
.where{color:var(--muted); font-weight:650}
.when{color:var(--muted2); font-size:13px}
ul{margin:10px 0 0; padding-left: 18px; color:var(--muted)}
li{margin:6px 0}

.skills{display:flex; flex-wrap:wrap; gap:10px;}
.skill{
  border:1px solid rgba(10,16,28,.14);
  background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.70));
  border-radius: 999px;
  padding:7px 11px;
  color:var(--muted);
  font-weight:700;
  font-size:13px;
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
.skill:hover{
  transform: translateY(-1px);
  border-color: rgba(32,92,180,.30);
  background: rgba(90,170,255,.16);
  color: rgba(10,16,28,.92);
}

.project-links{display:flex; gap:10px; flex-wrap:wrap; margin-top:10px}
.btn.small{padding:8px 10px; border-radius: 10px; font-size:13px}
.btn.link{background: rgba(255,255,255,.72);}

.footer{margin-top:16px; color:var(--muted2); font-size:13px; text-align:center; opacity:.9;}

[data-panel]{display:none}
[data-panel].active{display:block}

@media print{
  .bg-grid, .tabs, .row, .seg {display:none !important;}
  body{background:#fff; color:#111}
  .panel, .topbar{box-shadow:none; background:#fff; border-color:#ddd}
  .chip, .pill, .skill, .item, .card{border-color:#ddd; background:#fff}
  .role, .meta, .where, .when, .card p, ul{color:#333}
  a{color:#111; text-decoration:none}
}
.item .title{
  color: var(--accent);
}

/* Skill group titles only:
   "Machine Learning & Neural Networks", etc. */
#panel_skills .card h3{
  color: var(--accent);
}

/* Selected TAB (active) */
.tab.active{
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-color: rgba(32,92,180,.45);
  box-shadow: 0 10px 22px rgba(32,92,180,.18);
}

/* Selected language button (DE/EN) */
.seg button.active{
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}

/* Optional: focus ring (keyboard navigation) */
.tab:focus-visible,
.seg button:focus-visible,
.btn:focus-visible{
  outline: 3px solid rgba(90,170,255,.35);
  outline-offset: 2px;
}