:root{
  --bg:#faf8f4;
  --bg-alt:#f4f1ea;
  --surface:#ffffff;
  --surface-2:#f4f1ea;
  --line:rgba(20,16,8,0.1);
  --line-soft:rgba(20,16,8,0.06);
  --text:#191712;
  --text-dim:#5c564a;
  --text-faint:#9b9384;
  --accent:#a9781f;
  --accent-soft:rgba(169,120,31,0.12);
  --particle-dot:rgba(169,120,31,0.45);
  --particle-line:20,16,8;
  --serif:'Cormorant Garamond', serif;
  --sans:'Inter', sans-serif;
  --maxw:1100px;
  --frame-h:92vh;
  --frame-m:4vh;
  --frame-radius:22px;
  --page-bg:#f1ede4;
  color-scheme:light;
}
:root[data-theme="dark"]{
  --bg:#0a0b0d;
  --bg-alt:#0e1013;
  --surface:#121417;
  --surface-2:#161a1e;
  --line:rgba(255,255,255,0.08);
  --line-soft:rgba(255,255,255,0.05);
  --text:#eceef1;
  --text-dim:#9aa0a8;
  --text-faint:#5c626b;
  --accent:#c9a769;
  --accent-soft:rgba(201,167,105,0.12);
  --particle-dot:rgba(201,167,105,0.55);
  --particle-line:255,255,255;
  --page-bg:#050506;
  color-scheme:dark;
}
*{box-sizing:border-box; margin:0; padding:0;}
html,body{height:100%;}
body{
  background:var(--page-bg);
  color:var(--text);
  font-family:var(--sans);
  font-weight:300;
  line-height:1.6;
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
  transition:background .5s ease, color .5s ease;
}
::selection{background:var(--accent-soft); color:var(--accent);}

a{color:inherit; text-decoration:none;}

/* ---------- Frame: the entire site lives in one box, content scrolls inside it ---------- */
.site-frame{
  width:min(1440px, 94vw);
  height:var(--frame-h);
  margin:var(--frame-m) auto;
  border:1px solid var(--line);
  border-radius:var(--frame-radius);
  overflow:hidden;
  position:relative;
  background:var(--bg);
  box-shadow:0 40px 90px -30px rgba(0,0,0,0.35);
  transform:translateZ(0);
  transition:background .5s ease, border-color .5s ease;
}

canvas#bg{
  position:fixed; inset:0; width:100%; height:100%; z-index:0; opacity:0.55; pointer-events:none;
}

.noise{
  position:fixed; inset:0; z-index:1; pointer-events:none; opacity:0.025;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.frame-scroll{
  position:relative; z-index:2; height:100%; overflow-y:auto; overflow-x:hidden;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none; -ms-overflow-style:none;
}
.frame-scroll::-webkit-scrollbar{width:0; height:0; display:none;}

/* ---------- Page dots (nav rail) ---------- */
.page-dots{
  position:fixed; top:50%; right:20px; transform:translateY(-50%); z-index:40;
  display:flex; flex-direction:column; gap:6px; align-items:center;
}
.page-dots .dot{
  width:30px; height:30px; border-radius:50%; border:none; padding:0; cursor:pointer;
  background:transparent; display:flex; align-items:center; justify-content:center;
  color:var(--text-faint); transition:background .3s ease, color .3s ease;
  position:relative;
}
.page-dots .dot svg{
  width:15px; height:15px; stroke:currentColor; fill:none; stroke-width:1.7;
  stroke-linecap:round; stroke-linejoin:round;
  transition:transform .3s cubic-bezier(.16,1,.3,1);
}
.page-dots .dot:hover{background:var(--accent-soft); color:var(--accent);}
.page-dots .dot.active{color:var(--accent); background:var(--accent-soft);}
.page-dots .dot.active svg{transform:scale(1.15);}
.page-dots .dot .tip{
  position:absolute; right:calc(100% + 10px); top:50%; transform:translateY(-50%) translateX(4px);
  font-size:10.5px; letter-spacing:0.06em; text-transform:uppercase; white-space:nowrap;
  background:var(--surface); color:var(--text); border:1px solid var(--line); padding:5px 10px; border-radius:6px;
  opacity:0; pointer-events:none; transition:opacity .25s ease, transform .25s ease;
}
.page-dots .dot:hover .tip{opacity:1; transform:translateY(-50%) translateX(0);}

#theme-toggle{
  position:absolute; top:24px; right:28px; z-index:40;
  width:46px; height:25px; border-radius:20px; border:1px solid var(--line);
  background:var(--surface); cursor:pointer; padding:0; transition:border-color .3s ease;
}
#theme-toggle:hover{border-color:var(--accent);}
#theme-toggle .track-ico{
  position:absolute; top:50%; transform:translateY(-50%); width:11px; height:11px;
  stroke:var(--text-faint); fill:none; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round;
  pointer-events:none; transition:stroke .3s ease;
}
#theme-toggle .track-ico.sun{left:5px;}
#theme-toggle .track-ico.moon{right:5px;}
:root:not([data-theme="dark"]) #theme-toggle .track-ico.sun{stroke:var(--accent);}
:root[data-theme="dark"] #theme-toggle .track-ico.moon{stroke:var(--accent);}
#theme-toggle .theme-dot{
  position:absolute; top:2px; left:2px; width:19px; height:19px; border-radius:50%;
  background:var(--accent); transition:transform .35s cubic-bezier(.16,1,.3,1);
  display:flex; align-items:center; justify-content:center;
}
:root[data-theme="dark"] #theme-toggle .theme-dot{transform:translateX(21px);}
#theme-toggle .theme-dot svg{width:11px; height:11px; stroke:var(--bg); fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round;}

main{position:relative; z-index:2;}

/* ---------- Page: one section = one full-frame screen, snapped like a page turn ---------- */
section.page{
  height:var(--frame-h); max-width:var(--maxw); margin:0 auto; padding:0 6vw;
  display:flex; flex-direction:column; justify-content:center;
  scroll-snap-align:start; scroll-snap-stop:always;
  overflow:hidden; position:relative;
}

.eyebrow{
  font-size:11.5px; letter-spacing:0.28em; text-transform:uppercase; color:var(--accent);
  display:flex; align-items:center; gap:14px; margin-bottom:22px;
}
.eyebrow::before{content:''; width:34px; height:1px; background:var(--accent);}

h1,h2,h3{font-family:var(--serif); font-weight:500; letter-spacing:0.01em;}

/* ---------- Hero ---------- */
.hero-kicker{
  font-size:12px; letter-spacing:0.3em; text-transform:uppercase; color:var(--text-dim);
  margin-bottom:28px;
}
.hero-kicker em{color:var(--accent); font-style:normal;}
.hero-name{
  font-family:var(--serif); font-size:20px; letter-spacing:0.04em; color:var(--text-dim); margin-bottom:14px;
}
h1.hero-title{
  font-size:clamp(40px, 6.4vw, 88px); line-height:1.02; font-weight:500; color:var(--text);
  max-width:920px;
}
h1.hero-title .line{display:block; overflow:hidden;}
h1.hero-title .line span{display:inline-block; transform:translateY(115%); will-change:transform;}
.hero-sub{
  margin-top:30px; max-width:600px; font-size:16.5px; color:var(--text-dim); font-weight:300;
}
.hero-meta{
  margin-top:48px; display:flex; gap:48px; flex-wrap:wrap;
}
.hero-meta div{border-left:1px solid var(--line); padding-left:16px;}
.hero-meta .num{font-family:var(--serif); font-size:28px; color:var(--accent); display:block;}
.hero-meta .lab{font-size:11px; letter-spacing:0.1em; text-transform:uppercase; color:var(--text-faint); margin-top:4px;}

.scroll-cue{
  position:absolute; bottom:36px; left:6vw; display:flex; align-items:center; gap:12px;
  font-size:11px; letter-spacing:0.18em; text-transform:uppercase; color:var(--text-faint);
}
.scroll-cue .bar{width:1px; height:32px; background:var(--line); position:relative; overflow:hidden;}
.scroll-cue .bar::after{
  content:''; position:absolute; top:-100%; left:0; width:100%; height:100%; background:var(--accent);
  animation:cue 2.2s ease-in-out infinite;
}
@keyframes cue{0%{top:-100%;}50%{top:0;}100%{top:100%;}}

/* ---------- Section headers ---------- */
.sec-head{margin-bottom:34px;}
.sec-head h2{font-size:clamp(24px,2.8vw,36px); color:var(--text);}
.sec-head p{max-width:480px; margin-top:10px; color:var(--text-dim); font-size:13.5px;}

/* ---------- Summary ---------- */
.summary-text{
  font-size:clamp(18px,1.9vw,24px); font-weight:300; color:var(--text-dim); line-height:1.65;
  max-width:880px; font-family:var(--serif);
}
.summary-text strong{color:var(--text); font-weight:600;}

/* ---------- Skills ---------- */
.skill-grid{display:grid; grid-template-columns:repeat(5,1fr); grid-template-rows:repeat(2,1fr); gap:1px; background:var(--line);}
.skill-card{
  background:var(--bg); padding:18px 18px; transition:background .4s ease;
}
.skill-card:hover{background:var(--surface);}
.skill-card h3{font-size:12px; color:var(--accent); letter-spacing:0.04em; text-transform:uppercase; font-family:var(--sans); font-weight:600; margin-bottom:8px; line-height:1.3;}
.skill-card p{font-size:12px; color:var(--text-dim); line-height:1.5;}

/* ---------- Leadership grid (early career) ---------- */
.lead-grid{display:grid; grid-template-columns:1fr 1fr; grid-template-rows:1fr 1fr; gap:1px; background:var(--line);}
.lead-card{background:var(--bg); padding:26px 30px;}
.lead-card .tl-date{font-size:11px; letter-spacing:0.1em; text-transform:uppercase; color:var(--text-faint); margin-bottom:8px;}
.lead-card .tl-role{font-family:var(--serif); font-size:19px; color:var(--text); margin-bottom:2px;}
.lead-card .tl-org{font-size:11.5px; letter-spacing:0.05em; text-transform:uppercase; color:var(--accent); margin-bottom:12px; display:block;}
.lead-card p{font-size:13px; color:var(--text-dim); line-height:1.6;}

/* ---------- Stack sections (Experience / Engagements) — full-frame scroll cards ---------- */
.stack-section{
  max-width:none; width:100%; margin:0; padding:0 0 0;
}
.stack-section .sec-head--pad{
  max-width:var(--maxw); margin:0 auto; padding:0 6vw; height:var(--frame-h);
  display:flex; flex-direction:column; justify-content:center;
  scroll-snap-align:start; scroll-snap-stop:always;
}
.stack{position:relative;}
.stack-card{
  position:sticky; top:0; height:var(--frame-h); width:100%;
  display:flex; align-items:center;
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:0 6vw;
  overflow:hidden;
  scroll-snap-align:start; scroll-snap-stop:always;
}
.stack-card:nth-child(1){z-index:1;}
.stack-card:nth-child(2){z-index:2;}
.stack-card:nth-child(3){z-index:3;}
.stack-card:nth-child(4){z-index:4;}
.stack-card:nth-child(5){z-index:5;}
.stack-card:nth-child(6){z-index:6;}
.stack-idx{
  position:absolute; bottom:8%; right:6vw;
  font-family:var(--serif); font-size:clamp(80px,12vw,160px); line-height:1; color:var(--accent-soft);
  pointer-events:none; user-select:none; z-index:0;
}
.stack-body{position:relative; z-index:1; max-width:820px;}
.stack-date{font-size:12px; letter-spacing:0.14em; text-transform:uppercase; color:var(--accent); margin-bottom:14px;}
.stack-role{font-size:clamp(24px,3.2vw,40px); color:var(--text); line-height:1.08; margin-bottom:8px;}
.stack-org{font-size:13px; letter-spacing:0.05em; text-transform:uppercase; color:var(--text-dim); margin-bottom:20px;}
.stack-body ul{list-style:none; column-count:2; column-gap:36px; max-width:820px;}
.stack-body li{
  font-size:13px; color:var(--text-dim); line-height:1.55; padding-left:18px; position:relative;
  break-inside:avoid; margin-bottom:12px;
}
.stack-body li::before{content:''; position:absolute; left:0; top:8px; width:8px; height:1px; background:var(--accent);}

/* ---------- Achievements strip ---------- */
.ach-grid{display:grid; grid-template-columns:repeat(2,1fr); grid-template-rows:repeat(2,1fr); gap:1px; background:var(--line);}
.ach-card{background:var(--bg); padding:26px 34px 26px 30px; position:relative; display:flex; align-items:center;}
.ach-card .idx{font-family:var(--serif); font-size:32px; color:var(--accent-soft); position:absolute; top:14px; right:22px;}
.ach-card p{font-size:13.5px; color:var(--text-dim); line-height:1.6; max-width:460px; padding-right:36px;}

/* ---------- Education / Certs ---------- */
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:48px;}
.plain-list{list-style:none; display:flex; flex-direction:column; gap:16px;}
.plain-list li{border-bottom:1px solid var(--line-soft); padding-bottom:14px;}
.plain-list .t1{font-size:15px; color:var(--text); font-family:var(--serif);}
.plain-list .t2{font-size:12px; color:var(--text-faint); letter-spacing:0.04em; margin-top:4px;}

/* ---------- Contact / Footer ---------- */
#contact{text-align:left;}
.contact-title{font-size:clamp(28px,4vw,50px); max-width:700px; color:var(--text); margin-bottom:24px;}
.contact-links{display:flex; flex-wrap:wrap; gap:12px; margin-top:30px;}
.contact-links a{
  border:1px solid var(--line); padding:12px 22px 12px 18px; font-size:12.5px; letter-spacing:0.06em;
  display:flex; align-items:center; gap:10px; transition:border-color .3s ease, background .3s ease, transform .3s ease;
}
.contact-links a:hover{border-color:var(--accent); background:var(--accent-soft); transform:translateY(-2px);}
.contact-links a .ico{width:16px; height:16px; stroke:var(--accent); flex-shrink:0;}
footer{
  border-top:1px solid var(--line); margin-top:44px; padding-top:20px; display:flex; justify-content:space-between;
  font-size:11.5px; color:var(--text-faint); letter-spacing:0.04em; position:relative; z-index:2;
}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0; transform:translateY(28px); transition:opacity .9s cubic-bezier(.16,1,.3,1), transform .9s cubic-bezier(.16,1,.3,1);}
.reveal.in{opacity:1; transform:translateY(0);}
.reveal-stagger > *{opacity:0; transform:translateY(20px); transition:opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);}
.reveal-stagger.in > *{opacity:1; transform:translateY(0);}

@media (max-width:860px){
  /* Touch devices navigate by native swipe + CSS snap; the JS wheel/keyboard pager
     is a no-op here since phones don't fire wheel events. */
  .frame-scroll{scroll-snap-type:y mandatory;}
  :root{--frame-h:100vh; --frame-m:0px; --frame-radius:0px;}
  /* Mobile browsers show/hide an address bar, making 100vh taller than what's actually
     visible (pushes fixed bottom nav off-screen, causes content to overflow). `svh` is
     sized to the smallest possible viewport (chrome always visible) so nothing ever
     hides behind browser UI. Declared after the vh fallback so unsupported browsers
     simply ignore this line and keep the 100vh value above. */
  :root{--frame-h:100svh;}
  .site-frame{width:100vw; border:none; box-shadow:none;}
  html,body{height:100vh; height:100svh;}

  #theme-toggle{top:16px; right:16px;}
  .scroll-cue{display:none;}
  .skill-grid{grid-template-columns:repeat(2,1fr); grid-template-rows:none;}
  .ach-grid,.two-col,.lead-grid{grid-template-columns:1fr; grid-template-rows:none;}
  section.page{padding:70px 6vw 70px; overflow-y:auto; justify-content:flex-start; scroll-snap-align:start;}
  .hero-meta{gap:28px;}
  .stack-section .sec-head--pad{padding:70px 6vw 70px;}
  .stack-card{padding:70px 6vw 70px; align-items:flex-start; overflow-y:auto;}
  .stack-idx{font-size:60px; top:18px; right:6vw; bottom:auto; opacity:0.4;}
  .stack-role{font-size:clamp(24px,7vw,32px);}
  .stack-body ul{column-count:1; gap:10px;}
  .stack-body li{font-size:14px;}

  /* ---------- Mobile bottom nav (page-dots become a horizontal bar) ---------- */
  .page-dots{
    position:fixed; top:auto; bottom:0; left:0; right:0; transform:none;
    flex-direction:row; justify-content:space-evenly; align-items:center; gap:0;
    width:100%; padding:6px env(safe-area-inset-right) calc(6px + env(safe-area-inset-bottom)) env(safe-area-inset-left);
    background:var(--surface); border-top:1px solid var(--line);
    backdrop-filter:blur(14px);
  }
  .page-dots .dot{width:34px; height:34px;}
  .page-dots .dot svg{width:17px; height:17px;}
  .page-dots .dot .tip{display:none;}

  .hero-kicker{font-size:10.5px; letter-spacing:0.2em; margin-bottom:18px;}
  h1.hero-title{font-size:clamp(34px,10vw,52px);}
  .hero-sub{margin-top:18px; font-size:14.5px;}
  .hero-meta{margin-top:26px; gap:22px;}
  .hero-meta .num{font-size:22px;}
  .sec-head{margin-bottom:22px;}
  .summary-text{font-size:clamp(16px,4.2vw,19px);}
  .contact-title{margin-bottom:16px;}
  .contact-links{margin-top:20px;}
  footer{margin-top:24px;}
}