/* ============ Liquid glass — light theme ============ */
:root{
  --ink:#1d1d1f;
  --ink-2:#4a4d57;
  --ink-3:#6e7280;
  --accent:#0a66e8;
  --accent-2:#6d5cff;
  --bg:#eef1fb;

  --glass-bg:rgba(255,255,255,.38);
  --glass-bg-strong:rgba(255,255,255,.55);
  --glass-edge:rgba(255,255,255,.75);
  --glass-shadow:0 10px 40px -12px rgba(40,50,120,.22), 0 2px 6px rgba(40,50,120,.06);
  --blur:22px;
  --radius:24px;
  --radius-lg:32px;
  --maxw:1120px;
  --gutter:clamp(16px,4vw,32px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  font-family:Inter,-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif;
  color:var(--ink);background:var(--bg);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
b{font-weight:600;color:var(--ink)}
::selection{background:rgba(10,102,232,.18)}

/* ---------- Background light ---------- */
.backdrop{position:fixed;inset:0;z-index:-1;overflow:hidden;
  background:
    radial-gradient(1200px 800px at 10% -10%, #dfe8ff 0%, transparent 60%),
    radial-gradient(1000px 700px at 110% 20%, #ffe4f1 0%, transparent 60%),
    linear-gradient(180deg,#f4f6fd 0%,#eef1fb 100%);
}
.blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.75;will-change:transform}
.b1{width:46vmax;height:46vmax;left:-12vmax;top:-10vmax;background:radial-gradient(circle at 30% 30%,#9fc3ff,#b9a8ff 60%,transparent 70%);animation:float1 26s ease-in-out infinite}
.b2{width:40vmax;height:40vmax;right:-10vmax;top:10vh;background:radial-gradient(circle at 60% 40%,#ffb8d9,#ffd6a8 60%,transparent 72%);animation:float2 30s ease-in-out infinite}
.b3{width:38vmax;height:38vmax;left:20vw;bottom:-18vmax;background:radial-gradient(circle,#a6f0dc,#9fd8ff 60%,transparent 72%);animation:float3 34s ease-in-out infinite}
.b4{width:24vmax;height:24vmax;left:48vw;top:36vh;background:radial-gradient(circle,#d9c6ff,transparent 70%);animation:float2 22s ease-in-out infinite reverse}
@keyframes float1{50%{transform:translate(12vw,14vh) scale(1.1)}}
@keyframes float2{50%{transform:translate(-14vw,18vh) scale(.92)}}
@keyframes float3{50%{transform:translate(10vw,-16vh) scale(1.08)}}

/* ---------- The glass material ---------- */
.glass{
  position:relative;isolation:isolate;
  background:linear-gradient(135deg,rgba(255,255,255,.55),rgba(255,255,255,.22));
  -webkit-backdrop-filter:blur(var(--blur)) saturate(180%);
  backdrop-filter:blur(var(--blur)) saturate(180%);
  border:1px solid rgba(255,255,255,.55);
  border-radius:var(--radius);
  box-shadow:
    inset 0 1px 0 var(--glass-edge),          /* top specular rim */
    inset 0 -1px 0 rgba(255,255,255,.25),
    inset 0 0 20px rgba(255,255,255,.18),     /* inner glow = thickness */
    var(--glass-shadow);
}
/* curved highlight sheen */
.glass::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:-1;
  background:linear-gradient(160deg,rgba(255,255,255,.65) 0%,rgba(255,255,255,0) 38%);
  mix-blend-mode:soft-light;
}
/* light that follows the pointer (set by script.js) */
.glass::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:-1;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,-40%),rgba(255,255,255,.55),transparent 45%);
  opacity:0;transition:opacity .35s;
}
.glass:hover::after{opacity:1}
.glass-lg{border-radius:var(--radius-lg)}

/* Chromium gets real refraction on the big surfaces */
html.liquid .nav,
html.liquid .hero-card,
html.liquid .btn.glass{
  -webkit-backdrop-filter:url(#liquid) blur(14px) saturate(190%);
  backdrop-filter:url(#liquid) blur(14px) saturate(190%);
}

/* Fallback if no backdrop-filter */
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .glass{background:rgba(255,255,255,.86)}
}
/* Respect "reduce transparency" */
@media (prefers-reduced-transparency:reduce){
  .glass{background:rgba(255,255,255,.92);backdrop-filter:none;-webkit-backdrop-filter:none}
}

/* ---------- Nav ---------- */
.nav-wrap{position:fixed;top:14px;left:0;right:0;z-index:50;padding:0 var(--gutter)}
.nav{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;justify-content:space-between;
  padding:8px 8px 8px 18px;border-radius:999px}
.brand{font-weight:800;letter-spacing:.02em;font-size:17px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav ul{display:flex;gap:4px;align-items:center}
.nav ul a{display:block;padding:8px 14px;border-radius:999px;font-size:14px;font-weight:500;color:var(--ink-2);transition:background .2s,color .2s}
.nav ul a:hover{background:rgba(255,255,255,.6);color:var(--ink)}
.nav ul a.pill{background:var(--ink);color:#fff}
.nav ul a.pill:hover{background:#000}
.menu-btn{display:none;width:40px;height:40px;border:0;background:transparent;border-radius:50%;cursor:pointer;position:relative}
.menu-btn span{position:absolute;left:11px;right:11px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s}
.menu-btn span:first-child{top:15px}.menu-btn span:last-child{top:23px}
.menu-btn[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* ---------- Layout ---------- */
main{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.section{padding:clamp(56px,9vw,96px) 0 0}
h1,h2,h3{letter-spacing:-.022em;line-height:1.15}
h2{font-size:clamp(28px,4vw,40px);font-weight:700;margin-bottom:24px}
h3{font-size:18px;font-weight:600}
.card{padding:clamp(20px,3vw,32px)}
.card p{color:var(--ink-2)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}

/* ---------- Hero ---------- */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;gap:20px;padding-top:110px}
.hero-card{padding:clamp(28px,6vw,64px)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink-3);
  letter-spacing:.02em;margin-bottom:18px}
.dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.18)}
h1{font-size:clamp(36px,7vw,76px);font-weight:800;letter-spacing:-.035em}
.cred{display:inline-block;font-size:.28em;font-weight:600;vertical-align:super;margin-left:.5em;
  padding:.3em .7em;border-radius:999px;background:rgba(255,255,255,.7);color:var(--ink-2);letter-spacing:0;
  box-shadow:inset 0 1px 0 #fff,0 1px 3px rgba(0,0,0,.06)}
.role{font-size:clamp(20px,2.6vw,28px);font-weight:600;margin-top:10px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{max-width:62ch;margin-top:18px;font-size:clamp(16px,1.6vw,19px);color:var(--ink-2)}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;border-radius:999px;
  font-weight:600;font-size:15px;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:scale(.98)}
.btn.primary{color:#fff;background:linear-gradient(135deg,#1a73ff,#5b5bff);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 8px 24px -6px rgba(26,115,255,.55)}
.btn.glass{border-radius:999px}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stats li{padding:20px 22px}
.stats strong{display:block;font-size:clamp(28px,3.4vw,40px);font-weight:800;letter-spacing:-.03em}
.stats span{font-size:14px;color:var(--ink-3)}

/* ---------- Chips ---------- */
.skills{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.skills h3{margin-bottom:14px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips li{font-size:13px;font-weight:500;padding:6px 12px;border-radius:999px;color:var(--ink-2);
  background:rgba(255,255,255,.62);border:1px solid rgba(255,255,255,.8);
  box-shadow:inset 0 1px 0 #fff,0 1px 2px rgba(40,50,120,.06)}
.chips li.soft{opacity:.7;font-style:italic}

/* ---------- Timeline ---------- */
.timeline{display:grid;gap:18px;position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:8px;top:12px;bottom:12px;width:2px;border-radius:2px;
  background:linear-gradient(var(--accent),var(--accent-2),transparent)}
.timeline>li::marker{content:none}
.timeline>li>.when::before{content:"";position:absolute;left:-26px;top:34px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--accent);box-shadow:0 0 0 4px rgba(10,102,232,.15)}
.when{font-size:13px;font-weight:600;color:var(--accent);margin-bottom:6px}
.org{font-size:14px;color:var(--ink-3)!important;margin:2px 0 12px}
h3 em{font-style:normal;font-weight:500;color:var(--ink-3)}
.timeline ul{display:grid;gap:8px}
.timeline ul li{position:relative;padding-left:18px;color:var(--ink-2);font-size:15px}
.timeline ul li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:50%;background:var(--accent-2);opacity:.6}

/* ---------- Projects ---------- */
.projects{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.projects .wide{grid-column:1/-1}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;margin-bottom:12px;
  color:var(--accent);background:rgba(10,102,232,.1)}
.projects .card{transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.projects .card:hover{transform:translateY(-4px)}

/* ---------- Consulting ---------- */
.consult{display:grid;grid-template-columns:1.3fr 1fr;gap:28px;align-items:center}
.consult h2{margin-bottom:12px}
.consult .btn{grid-column:1/-1;justify-self:start}
.offer{display:grid;gap:10px}
.offer li{padding:12px 16px;border-radius:16px;background:rgba(255,255,255,.55);font-weight:500;font-size:15px;
  box-shadow:inset 0 1px 0 #fff}
.offer li::before{content:"✓";color:var(--accent);font-weight:700;margin-right:10px}

/* ---------- Contact ---------- */
.contact{text-align:center}
.contact h2{margin-bottom:8px}
.contact>p{max-width:52ch;margin:0 auto}
.contact-links{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.link{padding:18px;border-radius:20px;font-weight:600;word-break:break-word;transition:transform .2s}
.link:hover{transform:translateY(-2px)}
.link span{display:block;font-size:12px;font-weight:600;color:var(--ink-3);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}

.footer{text-align:center;padding:64px 16px 40px;font-size:13px;color:var(--ink-3)}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(18px) scale(.985);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .skills{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .consult{grid-template-columns:1fr}
}
@media (max-width:720px){
  .menu-btn{display:block}
  .nav{border-radius:24px;flex-wrap:wrap}
  .nav ul{display:none;width:100%;flex-direction:column;align-items:stretch;padding:8px 4px 6px}
  .nav ul.open{display:flex}
  .nav ul a{padding:12px 14px;font-size:16px}
  .grid-2,.skills,.projects,.contact-links{grid-template-columns:1fr}
  .hero{min-height:auto}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .blob{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
}


/* ============ Themes: <html data-theme="light | dark | auto"> ============ */
.note{margin-top:16px;font-size:14px;color:var(--ink-3);text-align:center}
:root[data-theme="dark"]{--ink:#eef1ff;--ink-2:#b9c0d9;--ink-3:#8a93b2;--accent:#4fd1c5;--accent-2:#9b8cff;--bg:#070b1a;--glass-edge:rgba(255,255,255,.22);--glass-shadow:0 20px 50px -18px rgba(0,0,0,.7),0 2px 8px rgba(0,0,0,.35);}
  :root[data-theme="dark"] body{background:#070b1a}
  :root[data-theme="dark"] .backdrop{background:radial-gradient(1200px 800px at 10% -10%,#132150 0%,transparent 60%),radial-gradient(1000px 700px at 110% 20%,#2a1650 0%,transparent 60%),linear-gradient(180deg,#070b1a 0%,#0a1024 100%)}
  :root[data-theme="dark"] .blob{opacity:.55}
  :root[data-theme="dark"] .b1{background:radial-gradient(circle at 30% 30%,#1fb6a8,#2b5cff 60%,transparent 70%)}
  :root[data-theme="dark"] .b2{background:radial-gradient(circle at 60% 40%,#7b4dff,#c04dff 60%,transparent 72%)}
  :root[data-theme="dark"] .b3{background:radial-gradient(circle,#0fa3b1,#1b3fa0 60%,transparent 72%)}
  :root[data-theme="dark"] .b4{background:radial-gradient(circle,#5b3bd6,transparent 70%)}
  :root[data-theme="dark"] .glass{background:linear-gradient(135deg,rgba(255,255,255,.10),rgba(255,255,255,.03));border-color:rgba(255,255,255,.14)}
  :root[data-theme="dark"] .glass::before{background:linear-gradient(160deg,rgba(255,255,255,.18) 0%,rgba(255,255,255,0) 40%);mix-blend-mode:normal}
  :root[data-theme="dark"] .glass::after{background:radial-gradient(420px circle at var(--mx,50%) var(--my,-40%),rgba(120,220,255,.14),transparent 45%)}
  :root[data-theme="dark"] .nav ul a:hover{background:rgba(255,255,255,.08)}
  :root[data-theme="dark"] .nav ul a.pill{background:#fff;color:#070b1a}
  :root[data-theme="dark"] .cred,:root[data-theme="dark"] .chips li,:root[data-theme="dark"] .offer li{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.12);box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}
  :root[data-theme="dark"] .tag{background:rgba(79,209,197,.14)}
  :root[data-theme="dark"] .timeline>li>.when::before{background:#0a1024;box-shadow:0 0 0 4px rgba(79,209,197,.18)}
  :root[data-theme="dark"] .btn.primary{color:#04121a;background:linear-gradient(135deg,#4fd1c5,#8b7dff);box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 8px 28px -6px rgba(79,209,197,.5)}
@media (prefers-color-scheme:dark){
  :root[data-theme="auto"]{--ink:#eef1ff;--ink-2:#b9c0d9;--ink-3:#8a93b2;--accent:#4fd1c5;--accent-2:#9b8cff;--bg:#070b1a;--glass-edge:rgba(255,255,255,.22);--glass-shadow:0 20px 50px -18px rgba(0,0,0,.7),0 2px 8px rgba(0,0,0,.35);}
  :root[data-theme="auto"] body{background:#070b1a}
  :root[data-theme="auto"] .backdrop{background:radial-gradient(1200px 800px at 10% -10%,#132150 0%,transparent 60%),radial-gradient(1000px 700px at 110% 20%,#2a1650 0%,transparent 60%),linear-gradient(180deg,#070b1a 0%,#0a1024 100%)}
  :root[data-theme="auto"] .blob{opacity:.55}
  :root[data-theme="auto"] .b1{background:radial-gradient(circle at 30% 30%,#1fb6a8,#2b5cff 60%,transparent 70%)}
  :root[data-theme="auto"] .b2{background:radial-gradient(circle at 60% 40%,#7b4dff,#c04dff 60%,transparent 72%)}
  :root[data-theme="auto"] .b3{background:radial-gradient(circle,#0fa3b1,#1b3fa0 60%,transparent 72%)}
  :root[data-theme="auto"] .b4{background:radial-gradient(circle,#5b3bd6,transparent 70%)}
  :root[data-theme="auto"] .glass{background:linear-gradient(135deg,rgba(255,255,255,.10),rgba(255,255,255,.03));border-color:rgba(255,255,255,.14)}
  :root[data-theme="auto"] .glass::before{background:linear-gradient(160deg,rgba(255,255,255,.18) 0%,rgba(255,255,255,0) 40%);mix-blend-mode:normal}
  :root[data-theme="auto"] .glass::after{background:radial-gradient(420px circle at var(--mx,50%) var(--my,-40%),rgba(120,220,255,.14),transparent 45%)}
  :root[data-theme="auto"] .nav ul a:hover{background:rgba(255,255,255,.08)}
  :root[data-theme="auto"] .nav ul a.pill{background:#fff;color:#070b1a}
  :root[data-theme="auto"] .cred,:root[data-theme="auto"] .chips li,:root[data-theme="auto"] .offer li{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.12);box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}
  :root[data-theme="auto"] .tag{background:rgba(79,209,197,.14)}
  :root[data-theme="auto"] .timeline>li>.when::before{background:#0a1024;box-shadow:0 0 0 4px rgba(79,209,197,.18)}
  :root[data-theme="auto"] .btn.primary{color:#04121a;background:linear-gradient(135deg,#4fd1c5,#8b7dff);box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 8px 28px -6px rgba(79,209,197,.5)}
}
:root[data-theme="dark"] .brand{background:linear-gradient(135deg,#a7fff4,#d6ceff);-webkit-background-clip:text;background-clip:text}
@media (prefers-color-scheme:dark){:root[data-theme="auto"] .brand{background:linear-gradient(135deg,#a7fff4,#d6ceff);-webkit-background-clip:text;background-clip:text}}

/* ---------- v2 additions ---------- */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pillars h3{margin:10px 0 8px}
.pillars p{font-size:15px}
.num{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent)}
.mt{margin:20px 0 12px}
a.inline{color:var(--accent);font-weight:600}
@media (max-width:1000px){.pillars{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){.pillars{grid-template-columns:1fr}}

/* ---------- Portrait ---------- */
.hero-card{display:grid;grid-template-columns:1fr auto;gap:clamp(24px,4vw,56px);align-items:center}
.hero-text{order:1;min-width:0}
.portrait{order:2;position:relative;width:clamp(220px,24vw,300px);aspect-ratio:1;border-radius:50%;padding:8px;
  background:linear-gradient(145deg,rgba(255,255,255,.35),rgba(255,255,255,.05));
  border:1px solid rgba(255,255,255,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 20px 60px -20px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.04)}
.portrait::after{content:"";position:absolute;inset:8px;border-radius:50%;pointer-events:none;
  background:linear-gradient(160deg,rgba(255,255,255,.28) 0%,transparent 35%);mix-blend-mode:soft-light}
.portrait img{display:block;width:100%;height:100%;object-fit:cover;border-radius:50%}
:root[data-theme="dark"] .portrait{box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 0 60px -10px rgba(79,209,197,.35),0 20px 60px -20px rgba(0,0,0,.7)}
@media (max-width:860px){
  .hero-card{grid-template-columns:1fr}
  .portrait{order:0;width:160px;padding:6px}
  .portrait::after{inset:6px}
}