/* ============ TOKENS ============ */
:root{
  --bg:#F6F5F1;
  --bg-elev:#FFFFFF;
  --bg-sunk:#ECEAE4;
  --ink:#14181F;
  --ink-muted:#5B6472;
  --ink-faint:#8891A0;
  --border:#DCD9D0;
  --border-strong:#C7C3B8;
  --blue:#2E5AAC;
  --green:#1E8E5A;
  --amber:#A6690B;
  --glow: 46,90,172;
  --shadow: 20,20,20;
  --radius-s:10px;
  --radius-m:16px;
  --radius-l:26px;
  --font-display:'IBM Plex Sans', system-ui, sans-serif;
  --font-body:'IBM Plex Sans', system-ui, sans-serif;
  --font-mono:'IBM Plex Mono', ui-monospace, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0A0D12;
    --bg-elev:#12161E;
    --bg-sunk:#070909;
    --ink:#E9ECF1;
    --ink-muted:#93A0B0;
    --ink-faint:#5E6875;
    --border:#232A35;
    --border-strong:#303947;
    --blue:#6C8CFF;
    --green:#63DE8B;
    --amber:#FFB454;
    --glow: 108,140,255;
    --shadow: 0,0,0;
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0A0D12;
  --bg-elev:#12161E;
  --bg-sunk:#070909;
  --ink:#E9ECF1;
  --ink-muted:#93A0B0;
  --ink-faint:#5E6875;
  --border:#232A35;
  --border-strong:#303947;
  --blue:#6C8CFF;
  --green:#63DE8B;
  --amber:#FFB454;
  --glow: 108,140,255;
  --shadow: 0,0,0;
  color-scheme: dark;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto;} }

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background .4s ease, color .4s ease;
  overflow-x:hidden;
}

a{color:inherit;}
::selection{ background: rgba(var(--glow), .32); }

.wrap{
  max-width:1080px;
  margin:0 auto;
  padding:0 28px;
}

h1,h2,h3{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:-0.02em;
  margin:0;
}

.section-head{
  display:flex;
  align-items:baseline;
  gap:16px;
  margin-bottom:40px;
}
.section-head .idx{
  font-family:var(--font-mono);
  font-size:.8rem;
  color:var(--ink-faint);
  letter-spacing:.02em;
}
.section-head h2{ font-size:clamp(1.7rem,3.4vw,2.3rem); }
.section-head .rule{
  flex:1;
  height:1px;
  background:linear-gradient(90deg, var(--border-strong), transparent);
}

section{ padding:96px 0; position:relative; }
@media (max-width:720px){ section{ padding:64px 0; } }

/* ============ TOP BAR ============ */
.topbar{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(10px);
  background:rgba(var(--shadow),0.0);
}
.topbar::before{
  content:"";
  position:absolute; inset:0;
  background:var(--bg);
  opacity:.78;
  z-index:-1;
  border-bottom:1px solid transparent;
}
.topbar.scrolled::before{ border-bottom-color:var(--border); }
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 28px;
  max-width:1080px; margin:0 auto;
}
.mark{
  font-family:var(--font-mono);
  font-weight:600;
  font-size:.95rem;
  display:flex; align-items:center; gap:8px;
  text-decoration:none;
  color:var(--ink);
}
.mark .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 3px rgba(var(--glow),.18);
  animation:pulse 2.4s ease-in-out infinite;
}
.nav-links{ display:flex; gap:28px; align-items:center; }
.nav-links a{
  font-size:.88rem; text-decoration:none; color:var(--ink-muted);
  font-family:var(--font-mono);
  transition:color .2s ease;
}
.nav-links a:hover{ color:var(--blue); }
@media (max-width:640px){ .nav-links a.hide-mobile{ display:none; } }

.theme-toggle{
  width:38px; height:38px; border-radius:50%;
  border:1px solid var(--border-strong);
  background:var(--bg-elev);
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; color:var(--ink);
  transition:transform .25s ease, border-color .2s ease;
}
.theme-toggle:hover{ border-color:var(--blue); }
.theme-toggle:active{ transform:scale(.9); }
.theme-toggle svg{ width:17px; height:17px; }

/* ============ HERO ============ */
.hero{
  position:relative;
  padding:64px 0 100px;
  overflow:hidden;
}
#netcanvas{
  position:absolute; inset:0;
  width:100%; height:100%;
  z-index:0;
  opacity:.55;
  pointer-events:none;
}
.hero-inner{
  position:relative; z-index:1;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
}
@media (max-width:860px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-photo{ order:-1; max-width:280px; margin:0 auto; }
}

.kicker{
  font-family:var(--font-mono);
  font-size:.82rem;
  color:var(--ink-muted);
  display:flex; align-items:center; gap:10px;
  margin-bottom:18px;
}
.kicker .sep{ color:var(--border-strong); }

.hero h1{
  font-size:clamp(2.6rem, 6.4vw, 4.1rem);
  line-height:1.02;
}
.hero .role{
  font-family:var(--font-mono);
  font-size:clamp(1.05rem,2vw,1.3rem);
  color:var(--blue);
  margin-top:14px;
  font-weight:500;
}
.hero p.lede{
  margin-top:22px;
  max-width:52ch;
  color:var(--ink-muted);
  font-size:1.05rem;
}

.chip-row{
  display:flex; flex-wrap:wrap; gap:10px;
  margin-top:28px;
}
.chip{
  font-family:var(--font-mono);
  font-size:.8rem;
  padding:7px 13px;
  border:1px solid var(--border-strong);
  border-radius:999px;
  color:var(--ink-muted);
  display:inline-flex; align-items:center; gap:7px;
  background:var(--bg-elev);
}
.chip .live{
  width:6px;height:6px;border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 3px rgba(var(--glow),.16);
}

.cta-row{
  margin-top:36px;
  display:flex; align-items:center; gap:18px; flex-wrap:wrap;
}
.btn-primary{
  font-family:var(--font-body);
  font-weight:600;
  font-size:.96rem;
  padding:14px 26px;
  border-radius:999px;
  background:var(--ink);
  color:var(--bg);
  text-decoration:none;
  display:inline-flex; align-items:center; gap:10px;
  transition:transform .2s ease, box-shadow .2s ease;
  box-shadow:0 1px 0 rgba(var(--shadow),.06);
}
:root[data-theme="dark"] .btn-primary, @media (prefers-color-scheme:dark){}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 10px 24px -8px rgba(var(--glow),.55); }
.btn-primary svg{ width:16px; height:16px; }

.social-row{ display:flex; gap:8px; }
.icon-btn{
  width:42px; height:42px; border-radius:50%;
  border:1px solid var(--border-strong);
  display:flex; align-items:center; justify-content:center;
  text-decoration:none; color:var(--ink);
  transition:border-color .2s ease, color .2s ease, transform .2s ease;
  background:var(--bg-elev);
}
.icon-btn:hover{ border-color:var(--blue); color:var(--blue); transform:translateY(-2px); }
.icon-btn svg{ width:18px; height:18px; }

/* photo card */
.hero-photo{ position:relative; perspective:1000px; }
.photo-card{
  position:relative;
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid var(--border);
  aspect-ratio:4/5;
  transform-style:preserve-3d;
  transition:transform .15s ease;
  box-shadow:0 30px 60px -30px rgba(var(--shadow),.35);
}
.photo-card img{
  width:100%; height:100%; object-fit:cover; display:block;
  filter:saturate(1.03);
}
.photo-card::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(180deg, transparent 55%, rgba(0,0,0,.55) 100%);
  pointer-events:none;
}
.photo-tag{
  position:absolute; left:16px; bottom:16px; z-index:2;
  font-family:var(--font-mono);
  font-size:.78rem;
  color:#fff;
  display:flex; align-items:center; gap:8px;
  background:rgba(10,13,18,.45);
  backdrop-filter:blur(6px);
  padding:7px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
}
.photo-tag .live{
  width:7px;height:7px;border-radius:50%;
  background:var(--green);
  animation:pulse 2.4s ease-in-out infinite;
}

@keyframes pulse{
  0%,100%{ box-shadow:0 0 0 0 rgba(99,222,139,.5); }
  50%{ box-shadow:0 0 0 5px rgba(99,222,139,0); }
}

/* ============ REVEAL ============ */
.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);
}
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
}

/* ============ STATUS CARDS ============ */
.status-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}
@media (max-width:720px){ .status-grid{ grid-template-columns:1fr; } }

.status-card{
  background:var(--bg-elev);
  border:1px solid var(--border);
  border-radius:var(--radius-m);
  padding:28px;
  position:relative;
  overflow:hidden;
  transition:transform .12s ease, border-color .2s ease;
}
.status-card::before{
  content:"";
  position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg, var(--green), transparent 70%);
}
.status-card:hover{ border-color:var(--border-strong); }
.status-top{
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom:16px;
}
.status-badge{
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--green);
  display:flex; align-items:center; gap:7px;
  border:1px solid currentColor;
  padding:4px 10px;
  border-radius:999px;
  opacity:.9;
}
.status-badge .dot{ width:6px;height:6px;border-radius:50%; background:currentColor; animation:pulse 2.4s ease-in-out infinite; }
.status-since{ font-family:var(--font-mono); font-size:.75rem; color:var(--ink-faint); }
.status-card h3{ font-size:1.28rem; margin-bottom:4px; }
.status-role{ color:var(--blue); font-family:var(--font-mono); font-size:.88rem; margin-bottom:14px; }
.status-desc{ color:var(--ink-muted); font-size:.94rem; }

/* stats */
.stats-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:20px;
}
@media (max-width:640px){ .stats-row{ grid-template-columns:1fr 1fr; } }
.stat{
  border-left:1px solid var(--border-strong);
  padding-left:16px;
}
.stat .num{
  font-family:var(--font-mono);
  font-size:clamp(1.8rem,3.4vw,2.4rem);
  font-weight:600;
  color:var(--ink);
  display:block;
}
.stat .label{
  color:var(--ink-muted);
  font-size:.85rem;
  margin-top:4px;
}

/* ============ TIMELINE ============ */
.timeline{
  position:relative;
  padding-left:32px;
  border-left:1px solid var(--border-strong);
}
.tl-item{ position:relative; padding-bottom:44px; }
.tl-item:last-child{ padding-bottom:0; }
.tl-item::before{
  content:"";
  position:absolute; left:-37px; top:4px;
  width:11px; height:11px; border-radius:50%;
  background:var(--bg);
  border:2px solid var(--blue);
}
.tl-item.current::before{ background:var(--green); border-color:var(--green); }
.tl-date{
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--ink-faint);
  margin-bottom:6px;
  display:block;
}
.tl-role{ font-size:1.18rem; font-weight:600; font-family:var(--font-display); }
.tl-org{ color:var(--blue); font-size:.92rem; font-family:var(--font-mono); margin:3px 0 10px; }
.tl-desc{ color:var(--ink-muted); font-size:.95rem; max-width:64ch; }

/* ============ SKILLS ============ */
.skill-groups{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:28px 40px;
}
@media (max-width:720px){ .skill-groups{ grid-template-columns:1fr; } }
.skill-group h3{
  font-size:.78rem;
  font-family:var(--font-mono);
  color:var(--ink-faint);
  font-weight:500;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.pill-row{ display:flex; flex-wrap:wrap; gap:8px; }
.pill{
  font-family:var(--font-mono);
  font-size:.83rem;
  padding:7px 12px;
  border-radius:8px;
  background:var(--bg-sunk);
  border:1px solid var(--border);
  color:var(--ink);
  transition:border-color .2s ease, transform .15s ease;
}
.pill:hover{ border-color:var(--blue); transform:translateY(-2px); }

/* ============ EDUCATION ============ */
.edu-grid{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
@media (max-width:720px){ .edu-grid{ grid-template-columns:1fr; } }
.edu-card{
  padding:24px;
  border:1px solid var(--border);
  border-radius:var(--radius-m);
  background:var(--bg-elev);
}
.edu-card .yr{ font-family:var(--font-mono); font-size:.78rem; color:var(--ink-faint); }
.edu-card h3{ font-size:1.05rem; margin:6px 0 4px; }
.edu-card p{ color:var(--ink-muted); font-size:.9rem; margin:0; }

/* ============ CONTACT / FOOTER ============ */
.contact{
  background:var(--ink);
  color:var(--bg);
  border-radius:var(--radius-l);
  padding:64px 44px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
:root[data-theme="dark"] .contact{ background:var(--bg-elev); border:1px solid var(--border-strong); }
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]) .contact{ background:var(--bg-elev); border:1px solid var(--border-strong); } }
.contact::before{
  content:"";
  position:absolute; inset:0;
  background:radial-gradient(600px 300px at 50% 0%, rgba(var(--glow),.25), transparent 70%);
  pointer-events:none;
}
.contact h2{
  font-size:clamp(1.9rem,4.4vw,2.8rem);
  position:relative;
  max-width:16ch;
  margin:0 auto;
}
.contact .lede{
  color:var(--ink-faint);
  margin:16px auto 0;
  max-width:46ch;
  position:relative;
}
:root[data-theme="dark"] .contact .lede{ color:var(--ink-muted); }
.contact-email{
  display:inline-block;
  margin-top:34px;
  font-family:var(--font-mono);
  font-size:clamp(1.1rem,3vw,1.5rem);
  color:var(--bg);
  text-decoration:none;
  border-bottom:1px solid rgba(var(--bg-rgb,246,245,241),.4);
  padding-bottom:4px;
  position:relative;
}
:root[data-theme="dark"] .contact-email{ color:var(--ink); border-color:var(--border-strong); }
.contact-meta{
  margin-top:26px;
  display:flex; justify-content:center; gap:22px; flex-wrap:wrap;
  font-family:var(--font-mono);
  font-size:.85rem;
  color:var(--ink-faint);
  position:relative;
}
:root[data-theme="dark"] .contact-meta{ color:var(--ink-muted); }
.contact .social-row{ justify-content:center; margin-top:30px; position:relative; }
.contact .icon-btn{ border-color:rgba(246,245,241,.25); color:var(--bg); background:transparent; }
:root[data-theme="dark"] .contact .icon-btn{ border-color:var(--border-strong); color:var(--ink); }
.contact .icon-btn:hover{ border-color:var(--blue); color:var(--blue); }

footer{
  padding:36px 0 48px;
  text-align:center;
}
.uptime{
  font-family:var(--font-mono);
  font-size:.78rem;
  color:var(--ink-faint);
  display:flex; align-items:center; justify-content:center; gap:8px;
}
.uptime .dot{ width:6px;height:6px;border-radius:50%; background:var(--green); }
.foot-name{ margin-top:6px; color:var(--ink-faint); font-size:.8rem; }

@media (prefers-reduced-motion: reduce){
  .chip .live, .status-badge .dot, .mark .dot, .photo-tag .live{ animation:none; }
}