:root {
  --bg: #0a0f1c;
  --surface: #121a2f;
  --surface2: #1a2438;
  --accent: #38bdf8;
  --accent2: #a78bfa;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.14);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a { color: var(--accent); }
.topnav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  padding: 0.85rem max(1.25rem, calc((100% - 920px) / 2));
  background: rgba(10, 15, 28, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand {
  font-weight: 700; text-decoration: none; color: var(--text);
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; align-items: center; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.nav-links a:hover { color: var(--text); }
.nav-muted { opacity: 0.7; font-size: 0.82rem !important; }
.hero {
  text-align: center;
  padding: 4rem 1.25rem 3rem;
  background: radial-gradient(ellipse 100% 70% at 50% -30%, #1e3a5f 0%, var(--bg) 60%);
}
.eyebrow {
  text-transform: uppercase; letter-spacing: 0.14em;
  font-size: 0.72rem; color: var(--muted); margin: 0 0 0.75rem;
}
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.2rem);
  margin: 0 0 1rem; letter-spacing: -0.03em;
}
.lead {
  max-width: 40rem; margin: 0 auto 1.75rem;
  font-size: 1.08rem; color: #cbd5e1;
}
.hero-actions {
  display: flex; flex-wrap: wrap; gap: 0.65rem;
  justify-content: center;
}
.btn {
  display: inline-block; padding: 0.55rem 1.1rem;
  border-radius: 999px; text-decoration: none; font-size: 0.9rem; font-weight: 600;
  border: 1px solid transparent;
}
.btn-primary { background: linear-gradient(90deg, var(--accent), #0ea5e9); color: #0a0f1c; }
.btn-ghost { border-color: var(--border); color: var(--text); background: rgba(255,255,255,0.03); }
.btn-ghost:hover { border-color: rgba(56,189,248,0.45); }
.wrap { max-width: 920px; margin: 0 auto; padding: 0 1.25rem 3rem; }
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem 1.5rem;
  margin-bottom: 1.25rem;
}
.panel h2 { margin: 0 0 1rem; font-size: 1.35rem; }
.panel p { color: #cbd5e1; margin: 0 0 1rem; }
.panel p:last-child { margin-bottom: 0; }
.section-note { font-size: 0.88rem; color: var(--muted); }
.pill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.85rem;
}
.pill-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}
.pill-card h3 { margin: 0 0 0.4rem; font-size: 0.98rem; }
.pill-card p { margin: 0; font-size: 0.88rem; color: var(--muted); }
.timeline {
  margin: 0; padding-left: 1.2rem;
  color: #cbd5e1;
}
.timeline li { margin-bottom: 0.85rem; }
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.85rem;
  margin: 1rem 0;
}
.project-card {
  display: block; text-decoration: none; color: inherit;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem;
  transition: transform 0.2s, border-color 0.2s;
}
.project-card:hover {
  transform: translateY(-2px);
  border-color: rgba(56,189,248,0.4);
}
.project-card h3 { margin: 0.35rem 0 0.4rem; font-size: 1rem; }
.project-card p { margin: 0; font-size: 0.86rem; color: var(--muted); }
.tag {
  display: inline-block; font-size: 0.65rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  padding: 0.15rem 0.45rem; border-radius: 999px;
  background: rgba(56,189,248,0.15); color: #7dd3fc;
}
.stack-row {
  display: flex; flex-wrap: wrap; gap: 0.45rem;
}
.stack-row span {
  font-size: 0.82rem; padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: #cbd5e1;
}
.life-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
}
.life-grid article {
  background: var(--surface2);
  border-radius: 12px;
  padding: 1rem;
  border: 1px solid var(--border);
}
.life-grid h3 { margin: 0 0 0.35rem; font-size: 0.95rem; }
.life-grid p { margin: 0; font-size: 0.86rem; color: var(--muted); }
.contact-panel { text-align: center; }
.site-footer {
  text-align: center; padding: 2rem 1rem 2.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted); font-size: 0.88rem;
}
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }
.fine { font-size: 0.75rem; margin-top: 0.5rem; opacity: 0.8; }
.meta-row {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem;
  justify-content: center;
  margin: 0 auto 1.25rem;
  max-width: 40rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.meta-row strong { color: #cbd5e1; font-weight: 600; }
.cv-list { list-style: none; margin: 0; padding: 0; }
.cv-item {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}
.cv-item:last-child { border-bottom: none; padding-bottom: 0; }
.cv-item:first-child { padding-top: 0; }
.cv-meta {
  display: flex; flex-wrap: wrap; gap: 0.35rem 0.85rem;
  align-items: baseline;
  margin-bottom: 0.35rem;
}
.cv-dates {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}
.cv-item h3 { margin: 0; font-size: 1.05rem; }
.cv-org { font-size: 0.92rem; color: #cbd5e1; margin: 0.15rem 0 0.4rem; }
.cv-item p { margin: 0; font-size: 0.9rem; color: var(--muted); }

/* —— Interactive career journey —— */
.panel-journey {
  overflow: visible;
  background:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(56,189,248,0.08), transparent 55%),
    radial-gradient(ellipse 70% 40% at 90% 100%, rgba(167,139,250,0.07), transparent 50%),
    var(--surface);
}
.journey-toolbar {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  align-items: center;
  margin: 0 0 1.25rem;
}
.journey-hint {
  width: 100%;
  margin: 0.35rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.filter-chip {
  appearance: none;
  cursor: pointer;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  transition: border-color 0.2s, color 0.2s, background 0.2s, transform 0.15s;
}
.filter-chip:hover {
  color: var(--text);
  border-color: rgba(56,189,248,0.35);
}
.filter-chip.is-active {
  color: #0a0f1c;
  background: linear-gradient(90deg, var(--accent), #7dd3fc);
  border-color: transparent;
}
.filter-chip[data-filter="de"].is-active {
  background: linear-gradient(90deg, #38bdf8, #0ea5e9);
}
.filter-chip[data-filter="lb"].is-active {
  background: linear-gradient(90deg, #fbbf24, #f59e0b);
  color: #1c1917;
}
.filter-chip[data-filter="sa"].is-active {
  background: linear-gradient(90deg, #34d399, #10b981);
  color: #052e1f;
}
.journey-track {
  position: relative;
  padding: 0.5rem 0 0.25rem;
  margin-left: 0.35rem;
}
.journey-spine {
  position: absolute;
  left: 1.15rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 3px;
  border-radius: 999px;
  background: rgba(148,163,184,0.18);
  overflow: hidden;
}
.journey-fill {
  position: absolute;
  left: 0; top: 0; width: 100%;
  height: 0%;
  border-radius: inherit;
  background: linear-gradient(180deg, var(--accent), var(--accent2));
  box-shadow: 0 0 18px rgba(56,189,248,0.45);
  transition: height 0.12s linear;
}
.journey-node {
  position: relative;
  padding-left: 3.2rem;
  margin-bottom: 1rem;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.journey-node.is-visible {
  opacity: 1;
  transform: none;
}
.journey-node[hidden] { display: none !important; }
.journey-dot {
  position: absolute;
  left: 0.62rem;
  top: 1.15rem;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: var(--surface2);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(56,189,248,0.12);
  z-index: 2;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.journey-node[data-region="lb"] .journey-dot { border-color: #fbbf24; box-shadow: 0 0 0 4px rgba(251,191,36,0.14); }
.journey-node[data-region="sa"] .journey-dot { border-color: #34d399; box-shadow: 0 0 0 4px rgba(52,211,153,0.14); }
.journey-node[data-region="de"] .journey-dot { border-color: #38bdf8; }
.journey-node.is-inview .journey-dot,
.journey-node.is-open .journey-dot {
  transform: scale(1.18);
  box-shadow: 0 0 0 6px rgba(56,189,248,0.2), 0 0 22px rgba(56,189,248,0.35);
}
.journey-node[data-region="lb"].is-open .journey-dot,
.journey-node[data-region="lb"].is-inview .journey-dot {
  box-shadow: 0 0 0 6px rgba(251,191,36,0.22), 0 0 22px rgba(251,191,36,0.3);
}
.journey-node[data-region="sa"].is-open .journey-dot,
.journey-node[data-region="sa"].is-inview .journey-dot {
  box-shadow: 0 0 0 6px rgba(52,211,153,0.22), 0 0 22px rgba(52,211,153,0.3);
}
.journey-card {
  position: relative;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}
.journey-node.is-open .journey-card,
.journey-node.is-inview .journey-card {
  border-color: rgba(56,189,248,0.35);
  box-shadow: 0 10px 36px rgba(0,0,0,0.28);
}
.journey-node[data-region="lb"].is-open .journey-card { border-color: rgba(251,191,36,0.4); }
.journey-node[data-region="sa"].is-open .journey-card { border-color: rgba(52,211,153,0.4); }
.journey-head {
  width: 100%;
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
  padding: 1rem 2.4rem 1rem 1.15rem;
  font: inherit;
  display: grid;
  gap: 0.35rem;
}
.journey-head:hover { background: rgba(255,255,255,0.02); }
.journey-head:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.journey-year-row {
  display: flex; flex-wrap: wrap; gap: 0.45rem 0.75rem;
  align-items: center;
}
.journey-year {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.journey-node[data-region="lb"] .journey-year { color: #fbbf24; }
.journey-node[data-region="sa"] .journey-year { color: #34d399; }
.journey-place {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.journey-head h3 {
  margin: 0;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
}
.journey-org {
  margin: 0;
  font-size: 0.9rem;
  color: #cbd5e1;
}
.journey-chevron {
  position: absolute;
  right: 1.1rem;
  top: 1.25rem;
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.25s;
  pointer-events: none;
}
.journey-node.is-open .journey-chevron {
  transform: rotate(225deg);
  top: 1.4rem;
}
.journey-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}
.journey-node.is-open .journey-body { grid-template-rows: 1fr; }
.journey-body-inner {
  overflow: hidden;
  min-height: 0;
}
.journey-body-inner > * {
  margin: 0 1.15rem 1.1rem;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s ease 0.05s, transform 0.3s ease 0.05s;
}
.journey-node.is-open .journey-body-inner > * {
  opacity: 1;
  transform: none;
}
.journey-body p {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 0.75rem !important;
}
.journey-tags {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
  padding-bottom: 0.15rem;
}
.journey-tags span {
  font-size: 0.72rem;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  background: rgba(56,189,248,0.1);
  color: #bae6fd;
  border: 1px solid rgba(56,189,248,0.18);
}
.journey-node[data-region="lb"] .journey-tags span {
  background: rgba(251,191,36,0.1);
  color: #fde68a;
  border-color: rgba(251,191,36,0.2);
}
.journey-node[data-region="sa"] .journey-tags span {
  background: rgba(52,211,153,0.1);
  color: #a7f3d0;
  border-color: rgba(52,211,153,0.2);
}
.journey-now {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #86efac;
  background: rgba(52,211,153,0.12);
  border: 1px solid rgba(52,211,153,0.25);
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
}
.journey-now::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 8px #4ade80;
  animation: pulse-now 1.6s ease-in-out infinite;
}
@keyframes pulse-now {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}
@media (prefers-reduced-motion: reduce) {
  .journey-node { opacity: 1; transform: none; transition: none; }
  .journey-fill { transition: none; }
  .journey-now::before { animation: none; }
  .journey-body { transition: none; }
}
.lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.65rem;
}
.lang-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
}
.lang-card h3 { margin: 0 0 0.2rem; font-size: 0.95rem; }
.lang-card p { margin: 0; font-size: 0.82rem; color: var(--muted); }
.vol-list {
  margin: 0;
  padding-left: 1.2rem;
  color: #cbd5e1;
}
.vol-list li { margin-bottom: 0.55rem; font-size: 0.92rem; }

/* —— Learning path —— */
.panel-learn {
  background:
    radial-gradient(ellipse 60% 45% at 85% 0%, rgba(167,139,250,0.1), transparent 55%),
    var(--surface);
}
.learn-rail {
  display: flex;
  gap: 0.55rem;
  overflow-x: auto;
  padding: 0.15rem 0 0.85rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.learn-step {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--muted);
  font: inherit;
  cursor: pointer;
  min-width: 8.5rem;
  flex: 0 0 auto;
  scroll-snap-align: start;
  border-radius: 14px;
  padding: 0.85rem 0.9rem;
  text-align: left;
  transition: border-color 0.2s, transform 0.2s, background 0.2s, color 0.2s;
}
.learn-step:hover { border-color: rgba(167,139,250,0.4); color: var(--text); }
.learn-step:focus-visible { outline: 2px solid var(--accent2); outline-offset: 2px; }
.learn-step.is-active {
  color: var(--text);
  border-color: rgba(167,139,250,0.55);
  background: linear-gradient(160deg, rgba(167,139,250,0.18), rgba(56,189,248,0.08));
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.25);
}
.learn-step .learn-era {
  display: block;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 0.35rem;
}
.learn-step strong { display: block; font-size: 0.92rem; line-height: 1.25; }
.learn-progress {
  height: 4px;
  border-radius: 999px;
  background: rgba(148,163,184,0.15);
  margin: 0 0 1rem;
  overflow: hidden;
}
.learn-progress-bar {
  height: 100%;
  width: 25%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  transition: width 0.35s ease;
}
.learn-stage-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.65rem;
}
.learn-counter {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.06em;
}
.learn-panel {
  display: none;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.15rem 1.2rem;
  animation: learn-in 0.35s ease;
}
.learn-panel.is-active { display: block; }
.learn-panel h3 { margin: 0 0 0.25rem; font-size: 1.15rem; }
.learn-panel .learn-org { margin: 0 0 0.75rem; color: #cbd5e1; font-size: 0.92rem; }
.learn-panel p { margin: 0; color: var(--muted); font-size: 0.92rem; }
.learn-badges {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
  margin-top: 0.85rem;
}
.learn-badges span {
  font-size: 0.72rem;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  background: rgba(167,139,250,0.12);
  color: #ddd6fe;
  border: 1px solid rgba(167,139,250,0.22);
}
@keyframes learn-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* —— Skills constellation —— */
.panel-skills {
  background:
    radial-gradient(ellipse 70% 55% at 50% 40%, rgba(56,189,248,0.08), transparent 60%),
    var(--surface);
}
.skill-filters {
  display: flex; flex-wrap: wrap; gap: 0.45rem;
  margin: 0 0 1rem;
}
.skill-stage-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 1rem;
  align-items: stretch;
}
.skill-stage {
  --mx: 0px;
  --my: 0px;
  position: relative;
  min-height: 320px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background:
    radial-gradient(circle at 50% 50%, rgba(56,189,248,0.07), transparent 55%),
    repeating-linear-gradient(0deg, transparent, transparent 22px, rgba(148,163,184,0.04) 23px),
    repeating-linear-gradient(90deg, transparent, transparent 22px, rgba(148,163,184,0.04) 23px),
    var(--surface2);
  overflow: hidden;
}
.skill-orbit {
  position: absolute;
  inset: 12% 10%;
  border: 1px dashed rgba(148,163,184,0.18);
  border-radius: 50%;
  pointer-events: none;
}
.skill-orbit.o2 { inset: 22% 18%; opacity: 0.7; }
.skill-orbit.o3 { inset: 34% 28%; opacity: 0.45; }
.skill-core {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(calc(-50% + var(--mx)), calc(-50% + var(--my)));
  width: 4.6rem; height: 4.6rem;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.15;
  color: #0a0f1c;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 40px rgba(56,189,248,0.35);
  transition: transform 0.2s ease;
  z-index: 2;
}
.skill-node {
  appearance: none;
  border: 1px solid rgba(148,163,184,0.25);
  background: rgba(10,15,28,0.82);
  color: var(--text);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  position: absolute;
  /* Pull labels in from the edges so long names stay inside the map. */
  left: calc(16% + var(--x) * 0.68);
  top: calc(14% + var(--y) * 0.7);
  transform: translate(calc(-50% + var(--mx) * 0.35), calc(-50% + var(--my) * 0.35));
  padding: 0.5rem 0.75rem;
  border-radius: 999px;
  white-space: nowrap;
  backdrop-filter: blur(6px);
  transition: transform 0.2s, border-color 0.2s, opacity 0.25s, box-shadow 0.25s, background 0.2s;
  animation: skill-float 5.5s ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  z-index: 3;
}
.skill-node:hover,
.skill-node.is-hover,
.skill-node.is-selected {
  border-color: rgba(56,189,248,0.55);
  box-shadow: 0 0 0 4px rgba(56,189,248,0.12), 0 8px 24px rgba(0,0,0,0.35);
  background: rgba(30,58,95,0.95);
  z-index: 5;
}
.skill-node.is-dim {
  opacity: 0.22;
  filter: grayscale(0.4);
  pointer-events: none;
}
.skill-node.is-lit {
  border-color: rgba(56,189,248,0.4);
}
.skill-node[data-skill-cat="viz"] { --accent-local: #a78bfa; }
.skill-node[data-skill-cat="viz"].is-selected,
.skill-node[data-skill-cat="viz"]:hover {
  border-color: rgba(167,139,250,0.6);
  box-shadow: 0 0 0 4px rgba(167,139,250,0.14), 0 8px 24px rgba(0,0,0,0.35);
}
.skill-node[data-skill-cat="platform"].is-selected,
.skill-node[data-skill-cat="platform"]:hover {
  border-color: rgba(52,211,153,0.55);
  box-shadow: 0 0 0 4px rgba(52,211,153,0.12), 0 8px 24px rgba(0,0,0,0.35);
}
.skill-node[data-skill-cat="energy"].is-selected,
.skill-node[data-skill-cat="energy"]:hover {
  border-color: rgba(251,191,36,0.55);
  box-shadow: 0 0 0 4px rgba(251,191,36,0.12), 0 8px 24px rgba(0,0,0,0.35);
}
@keyframes skill-float {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -6px; }
}
.skill-readout {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.15rem 1.2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 220px;
}
.skill-readout h3 {
  margin: 0 0 0.45rem;
  font-size: 1.15rem;
}
.skill-readout p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}
.skill-meter-track {
  height: 8px;
  border-radius: 999px;
  background: rgba(148,163,184,0.15);
  overflow: hidden;
}
.skill-meter-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width 0.45s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 0 12px rgba(56,189,248,0.45);
}
.skill-readout .skill-meter-label {
  margin-top: 0.45rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}
.skill-readout.has-selection {
  border-color: rgba(56,189,248,0.35);
  box-shadow: inset 0 0 0 1px rgba(56,189,248,0.08);
}
@media (max-width: 760px) {
  .skill-stage-wrap { grid-template-columns: 1fr; }
  .skill-stage { min-height: 280px; }
  .journey-track { margin-left: 0; }
  .journey-node { padding-left: 1.15rem; }
  .journey-spine { left: 0.28rem; }
  .journey-dot {
    left: 0;
    width: 0.7rem;
    height: 0.7rem;
    border-width: 2px;
    box-shadow: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  .skill-node { animation: none; }
  .learn-panel { animation: none; }
  .lang-ring { animation: none !important; }
}

/* —— Language reach —— */
.panel-langs {
  background:
    radial-gradient(ellipse 70% 50% at 0% 0%, rgba(56,189,248,0.1), transparent 50%),
    radial-gradient(ellipse 60% 45% at 100% 100%, rgba(52,211,153,0.08), transparent 50%),
    var(--surface);
}
.lang-hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1rem;
  margin-bottom: 1.1rem;
  align-items: stretch;
}
.lang-reach-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem 1.3rem;
}
.lang-reach-kicker {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.lang-reach-number {
  margin: 0;
  font-size: clamp(2rem, 6vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(90deg, var(--accent), #4ade80);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.lang-reach-sub {
  margin: 0.35rem 0 1rem;
  color: #cbd5e1;
  font-size: 0.95rem;
}
.lang-world-bar {
  height: 10px;
  border-radius: 999px;
  background: rgba(148,163,184,0.15);
  overflow: hidden;
}
.lang-world-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), #4ade80, var(--accent2));
  transition: width 0.55s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 0 16px rgba(56,189,248,0.4);
}
.lang-world-pct {
  margin: 0.55rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.lang-pulse {
  position: relative;
  min-height: 190px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface2);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.lang-ring {
  position: absolute;
  left: 50%; top: 50%;
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: lang-pulse 4s ease-out infinite;
}
.lang-ring.r1 { width: 4.5rem; height: 4.5rem; animation-delay: 0s; }
.lang-ring.r2 { width: 7.5rem; height: 7.5rem; animation-delay: 0.7s; border-color: rgba(74,222,128,0.22); }
.lang-ring.r3 { width: 10.5rem; height: 10.5rem; animation-delay: 1.4s; border-color: rgba(167,139,250,0.2); }
.lang-pulse-core {
  position: relative;
  z-index: 2;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text);
  background: rgba(10,15,28,0.75);
  border: 1px solid var(--border);
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  backdrop-filter: blur(6px);
  transition: transform 0.25s;
}
.panel-langs.is-hot .lang-pulse-core {
  transform: scale(1.06);
  border-color: rgba(56,189,248,0.45);
}
@keyframes lang-pulse {
  0% { opacity: 0.85; transform: translate(-50%, -50%) scale(0.92); }
  70% { opacity: 0; transform: translate(-50%, -50%) scale(1.15); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.15); }
}
.lang-grid-live {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}
.lang-live {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  border-radius: 14px;
  padding: 0.95rem 1rem;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "flag name"
    "flag level"
    "count count"
    "bar bar";
  column-gap: 0.75rem;
  row-gap: 0.15rem;
  transition: border-color 0.2s, transform 0.2s, opacity 0.2s, box-shadow 0.2s;
}
.lang-live:hover {
  transform: translateY(-2px);
  border-color: rgba(56,189,248,0.35);
}
.lang-live:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.lang-live.is-on {
  border-color: rgba(56,189,248,0.4);
  box-shadow: 0 8px 28px rgba(0,0,0,0.22);
}
.lang-live:not(.is-on) {
  opacity: 0.45;
  filter: grayscale(0.35);
}
.lang-flag {
  grid-area: flag;
  width: 2.4rem; height: 2.4rem;
  border-radius: 10px;
  display: grid; place-items: center;
  font-size: 0.72rem;
  font-weight: 800;
  background: rgba(56,189,248,0.15);
  color: #7dd3fc;
  align-self: center;
}
.lang-live[data-lang="ar"] .lang-flag { background: rgba(251,191,36,0.15); color: #fbbf24; }
.lang-live[data-lang="en"] .lang-flag { background: rgba(56,189,248,0.15); color: #7dd3fc; }
.lang-live[data-lang="de"] .lang-flag { background: rgba(248,113,113,0.15); color: #fca5a5; }
.lang-live[data-lang="fr"] .lang-flag { background: rgba(167,139,250,0.15); color: #c4b5fd; }
.lang-name { grid-area: name; font-weight: 700; font-size: 1rem; }
.lang-level { grid-area: level; font-size: 0.78rem; color: var(--muted); }
.lang-count {
  grid-area: count;
  margin-top: 0.55rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: #cbd5e1;
}
.lang-bar {
  grid-area: bar;
  display: block;
  height: 6px;
  margin-top: 0.45rem;
  border-radius: 999px;
  background: rgba(148,163,184,0.12);
  overflow: hidden;
}
.lang-bar i {
  display: block;
  height: 100%;
  width: var(--w, 50%);
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), #4ade80);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.55s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.lang-live.is-on .lang-bar i { transform: scaleX(1); }
.lang-footnote {
  margin: 0.9rem 0 0;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.45;
}
.panel-langs.is-shake {
  animation: lang-shake 0.35s ease;
}
@keyframes lang-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}
@media (max-width: 760px) {
  .lang-hero { grid-template-columns: 1fr; }
  .lang-pulse { min-height: 150px; }
  .lang-grid-live { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .topnav { justify-content: center; padding-inline: 0.75rem; }
  .nav-links { justify-content: center; }
}