:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1c232d;
  --border: #2a3140;
  --text: #e6e9ef;
  --muted: #8b95a5;
  --accent: #4c8dff;
  --accent-2: #2f6fe0;
  --good: #33c17a;
  --radius: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* ═══ TOPBAR ═══ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(14, 17, 22, 0.92);
  backdrop-filter: blur(8px);
  flex-wrap: wrap;
  gap: 12px;
}
.brand { font-size: 16px; font-weight: 700; letter-spacing: 0.01em; color: var(--text); }
.brand span { display: block; font-weight: 400; color: var(--muted); font-size: 12px; margin-top: 2px; }
.nav-links { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.nav-links a {
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 6px;
  text-decoration: none;
}
.nav-links a:hover { color: var(--text); background: var(--panel-2); }
.nav-links a.active { color: var(--text); background: var(--panel); }
.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 8px 16px !important;
  border-radius: 6px;
  font-weight: 700 !important;
}
.nav-cta:hover { background: var(--accent-2) !important; }

/* ═══ LAYOUT ═══ */
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.page-hero { padding: 56px 0 32px; border-bottom: 1px solid var(--border); }
.page-hero .eyebrow { color: var(--accent); font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; }
.page-hero h1 { font-size: 34px; margin: 0 0 12px; line-height: 1.15; }
.page-hero p { color: var(--muted); font-size: 15.5px; max-width: 680px; margin: 0; }
section.block { padding: 48px 0; border-bottom: 1px solid var(--border); }
section.block:last-of-type { border-bottom: none; }
section.block h2 { font-size: 22px; margin: 0 0 6px; }
section.block > .sub { color: var(--muted); font-size: 14px; margin: 0 0 24px; }

h1, h2, h3, h4 { color: var(--text); }
h3 { font-size: 16px; margin: 0 0 4px; }

/* ═══ HOME HERO ═══ */
.hero {
  display: flex;
  align-items: center;
  gap: 48px;
  padding: 64px 0 48px;
  flex-wrap: wrap;
}
.hero-text { flex: 1 1 440px; min-width: 320px; }
.hero-art { flex: 1 1 320px; min-width: 260px; max-width: 420px; margin: 0 auto; }
.hero-art svg { width: 100%; height: auto; display: block; }
.hero-eyebrow { color: var(--accent); font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; }
.hero-title { font-size: 40px; margin: 0 0 6px; line-height: 1.12; }
.hero-title .th { display: block; font-size: 17px; font-weight: 400; color: var(--muted); margin-top: 6px; }
.hero-role { color: var(--muted); font-size: 16px; margin: 10px 0 20px; }
.hero-tag { color: var(--muted); font-size: 15px; line-height: 1.7; max-width: 500px; margin-bottom: 26px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 20px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-2); }

/* ═══ STATS STRIP ═══ */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin: 8px 0 0; }
.stat { background: var(--panel); padding: 22px 18px; text-align: center; }
.stat .num { font-size: 26px; font-weight: 800; color: var(--accent); }
.stat .lbl { font-size: 12px; color: var(--muted); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.04em; }

/* ═══ FEATURED APP PANEL ═══ */
.feature-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: linear-gradient(135deg, rgba(76,141,255,0.12), rgba(76,141,255,0.02));
  border: 1px solid rgba(76,141,255,0.35);
  border-radius: 14px;
  padding: 32px;
  flex-wrap: wrap;
}
.feature-panel .ftxt { flex: 1 1 380px; min-width: 280px; }
.feature-panel .fbadge { display: inline-block; background: rgba(76,141,255,0.18); color: var(--accent); font-size: 11.5px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; margin-bottom: 12px; }
.feature-panel h2 { margin: 0 0 8px; font-size: 24px; }
.feature-panel p { color: var(--muted); font-size: 14.5px; max-width: 520px; margin: 0 0 18px; }
.feature-panel .fart { flex: 0 0 auto; }

/* ═══ CARD GRID ═══ */
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card h3 { color: var(--text); font-size: 15.5px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 13.5px; margin: 0 0 12px; }
.card a.more { font-size: 13px; font-weight: 600; }

/* ═══ TIMELINE (experience/education) ═══ */
.timeline { display: flex; flex-direction: column; gap: 0; }
.tl-item { position: relative; padding: 0 0 28px 26px; border-left: 2px solid var(--border); }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: -7px; top: 2px; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); border: 2px solid var(--bg); }
.tl-item h3 { font-size: 16px; margin-bottom: 2px; }
.tl-item .org { color: var(--accent); font-size: 13.5px; font-weight: 600; }
.tl-item .when { color: var(--muted); font-size: 12.5px; margin: 2px 0 8px; }
.tl-item p { color: var(--muted); font-size: 13.5px; margin: 0; }

/* ═══ TAG LIST (skills/specialties) ═══ */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); font-size: 12.5px; padding: 6px 12px; border-radius: 999px; }

/* ═══ LIST BLOCKS (publications etc.) ═══ */
.pub-list { display: flex; flex-direction: column; gap: 14px; }
.pub-item { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px; font-size: 13.5px; color: var(--text); }
.pub-item .yr { color: var(--accent); font-weight: 700; margin-right: 6px; }
.group-title { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin: 32px 0 14px; }
.group-title:first-child { margin-top: 0; }

/* ═══ SERVICE LIST ═══ */
.service-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.service-item { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 16px 18px; }
.service-item h4 { margin: 0 0 6px; font-size: 14.5px; color: var(--text); }
.service-item ul { margin: 6px 0 0; padding-left: 18px; color: var(--muted); font-size: 13px; }
.service-item p { margin: 0; color: var(--muted); font-size: 13.5px; }

/* ═══ CASE STUDIES ═══ */
.case { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 18px; }
.case .when { color: var(--muted); font-size: 12.5px; margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.04em; }
.case h3 { font-size: 18px; margin-bottom: 10px; }
.case p { color: var(--muted); font-size: 14px; margin: 0; }

/* ═══ CONTACT ═══ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.contact-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.contact-card .row { display: flex; gap: 10px; margin-bottom: 14px; font-size: 14px; }
.contact-card .row .k { color: var(--muted); min-width: 84px; flex-shrink: 0; }
.map-frame { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; height: 320px; }
.map-frame iframe { width: 100%; height: 100%; border: 0; filter: grayscale(0.3) invert(0.92) contrast(0.9); }

/* ═══ LINKS PAGE ═══ */
.link-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.link-item { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 16px 18px; font-size: 14px; }
.link-item .cat { color: var(--muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }

/* ═══ FOOTER ═══ */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 40px;
  margin-top: 24px;
}
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer .fmeta { color: var(--muted); font-size: 12.5px; }
.footer .fmeta a { color: var(--muted); }
.social { display: flex; gap: 10px; }
.social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--panel-2); border: 1px solid var(--border);
  color: var(--muted);
}
.social a:hover { color: var(--accent); border-color: var(--accent); }

@media (max-width: 780px) {
  .hero { flex-direction: column; text-align: center; }
  .hero-tag { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: 1fr 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .link-grid { grid-template-columns: 1fr; }
  .feature-panel { flex-direction: column; text-align: center; }
  .nav-links { justify-content: center; }
}
@media (max-width: 520px) {
  .card-grid { grid-template-columns: 1fr; }
}