/* ==================================================================
   site.css — shared design system for bernardeshun.co.uk
   Palette and feel carried over from the original homepage:
   deep navy ground, blue → violet accents, glass panels.
   ================================================================== */

/* ------------------------------------------------------------------
   Fonts — self-hosted variable woff2 (latin subset), so there's no
   third-party request to Google on every page load. One file per
   family covers every weight the site uses.
   ------------------------------------------------------------------ */
@font-face{
  font-family:'Inter';
  font-style:normal;
  font-display:swap;
  font-weight:100 900;
  src:url('fonts/inter-var.woff2') format('woff2');
}
@font-face{
  font-family:'Sora';
  font-style:normal;
  font-display:swap;
  font-weight:100 800;
  src:url('fonts/sora-var.woff2') format('woff2');
}
@font-face{
  font-family:'JetBrains Mono';
  font-style:normal;
  font-display:swap;
  font-weight:100 800;
  src:url('fonts/jetbrains-mono-var.woff2') format('woff2');
}
@font-face{
  font-family:'Caveat';
  font-style:normal;
  font-display:swap;
  font-weight:400 700;
  src:url('fonts/caveat-var.woff2') format('woff2');
}

:root{
  --bg:#050B1E;
  --band:#040A1C;
  --panel:rgba(10,22,58,.72);
  --panel-solid:#0A1638;
  --tile:rgba(9,20,52,.85);
  --line:rgba(86,140,255,.24);
  --line-soft:rgba(140,180,255,.14);
  --text:#EAF1FF;
  --muted:#93A8CE;
  --dim:#6E82AC;
  --cyan:#22D3EE;
  --blue:#3B82F6;
  --violet:#A855F7;
  --ok:#34D399;
  --warn:#F5B942;
  --code-bg:#03070F;
  --glow:0 0 0 1px rgba(86,140,255,.16), 0 18px 50px -24px rgba(20,80,220,.75);
  --radius:20px;
  --shell:82rem;
  --nav-stuck:rgba(6,14,36,.82);
}

html[data-theme="light"]{
  --bg:#EEF3FC;
  --band:#E4EBF9;
  --panel:rgba(255,255,255,.82);
  --panel-solid:#FFFFFF;
  --tile:rgba(255,255,255,.9);
  --line:rgba(37,99,235,.22);
  --line-soft:rgba(37,99,235,.14);
  --text:#0B1730;
  --muted:#4C617F;
  --dim:#6B7E9B;
  --cyan:#0C6C86;
  --blue:#2563EB;
  --violet:#7C3AED;
  --ok:#059669;
  --warn:#B45309;
  --code-bg:#0B1220;
  --glow:0 0 0 1px rgba(37,99,235,.10), 0 18px 44px -26px rgba(20,70,180,.45);
  --nav-stuck:rgba(255,255,255,.86);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth; scroll-padding-top:6rem;}

body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:Inter, system-ui, -apple-system, sans-serif;
  font-size:16px; line-height:1.65; -webkit-font-smoothing:antialiased; overflow-x:hidden;
}

/* ambient wash behind everything */
body::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(52rem 34rem at 84% -6%, rgba(59,130,246,.26), transparent 62%),
    radial-gradient(40rem 30rem at -6% 6%, rgba(124,58,237,.24), transparent 60%),
    radial-gradient(46rem 30rem at 50% 108%, rgba(34,211,238,.12), transparent 60%);
}
html[data-theme="light"] body::before{
  background:
    radial-gradient(52rem 34rem at 84% -6%, rgba(59,130,246,.18), transparent 62%),
    radial-gradient(40rem 30rem at -6% 6%, rgba(124,58,237,.12), transparent 60%);
}

/* fine grain for depth on the flat gradient wash — barely visible, keeps panels from looking too flat */
body::after{
  content:""; position:fixed; inset:0; z-index:1; pointer-events:none; opacity:.035; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%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");
}
html[data-theme="light"] body::after{opacity:.02;}

/* violet waves bleeding in from the page edges */
.wave{position:fixed; z-index:0; pointer-events:none; opacity:.85;}
.band .wave.left{position:absolute; z-index:2; opacity:.9;}
.wave.left{left:-6rem; top:-4rem; width:26rem;}
.wave.right{right:-8rem; bottom:-6rem; width:24rem;}
html[data-theme="light"] .wave{opacity:.4;}

.shell{position:relative; z-index:2; max-width:var(--shell); margin:0 auto; padding:0 clamp(1rem,4vw,2.25rem);}
.shell.narrow{max-width:74rem;}

a{color:inherit; text-decoration:none;}
a:focus-visible, button:focus-visible{outline:2px solid var(--cyan); outline-offset:3px; border-radius:8px;}
img{max-width:100%; display:block;}
/* <picture> is only a wrapper for webp sources — don't let it box the img */
picture{display:contents;}
p{margin:0;}

/* skip link — offscreen until a keyboard user tabs to it */
.skip{
  position:absolute; left:.75rem; top:-4rem; z-index:100;
  padding:.65rem 1.1rem; border-radius:0 0 12px 12px;
  background:var(--panel-solid); border:1px solid var(--line); border-bottom-width:1px;
  font-size:.9rem; font-weight:500; color:var(--text);
  transition:top .2s ease;
}
.skip:focus{top:0;}
/* the skip target is focused programmatically — no ring needed on it */
[tabindex="-1"]:focus{outline:none;}

.mono{
  font-family:"JetBrains Mono", ui-monospace, monospace;
  font-size:.7rem; letter-spacing:.16em; text-transform:uppercase; color:var(--muted);
}

/* ================================ nav ================================ */
.navbar{
  position:sticky; top:0; z-index:50;
  border-bottom:1px solid transparent;
  transition:background-color .35s ease, backdrop-filter .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.navbar.stuck{
  background:var(--nav-stuck); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line-soft); box-shadow:0 16px 40px -30px rgba(0,0,0,.6);
}
nav{display:flex; align-items:center; gap:1rem; padding:1.05rem 0; transition:padding .35s ease;}
.navbar.stuck nav{padding:.7rem 0;}

.brandwrap{display:flex; align-items:center; gap:.7rem;}
.logo{
  width:44px; height:40px; flex:none; border-radius:11px;
  display:inline-flex; align-items:center; justify-content:center;
  font-family:Sora,sans-serif; font-weight:800; font-size:1.15rem; letter-spacing:-.02em;
  background:linear-gradient(140deg, rgba(56,189,248,.22), rgba(168,85,247,.24));
  border:1px solid var(--line);
  background-clip:padding-box;
  transition:transform .35s cubic-bezier(.2,.7,.3,1);
}
.brandwrap:hover .logo{transform:scale(1.06) rotate(-3deg);}
.logo span{
  background:linear-gradient(120deg,#38BDF8,#A855F7);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.brandtext b{font-family:Sora,sans-serif; font-weight:700; font-size:1.02rem; display:block; letter-spacing:-.015em; line-height:1.25;}
.brandtext span{font-size:.78rem; color:var(--muted);}

.navlinks{display:flex; gap:1.6rem; margin:0 auto;}
.navlinks a{position:relative; font-size:.92rem; color:var(--muted); padding-bottom:6px; transition:color .25s;}
.navlinks a:hover{color:var(--text);}
.navlinks a::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:2px; border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  transition:right .35s cubic-bezier(.2,.7,.3,1);
}
.navlinks a:hover::after, .navlinks a.active::after{right:0;}
.navlinks a.active{color:var(--cyan);}

.navtools{display:flex; align-items:center; gap:.6rem;}

/* ============================== buttons ============================== */
.btn{
  display:inline-flex; align-items:center; gap:.5rem; justify-content:center;
  font-size:.9rem; font-weight:500; padding:.62rem 1.05rem; border-radius:999px;
  border:1px solid var(--line); color:var(--text); background:var(--tile);
  transition:border-color .25s, background .25s, transform .25s;
}
.btn:hover{border-color:rgba(120,170,255,.5); transform:translateY(-1px);}
.btn svg{width:16px; height:16px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; position:relative;}
.btn.solid{
  position:relative; overflow:hidden;
  border-color:transparent; color:#fff;
  background:linear-gradient(100deg, var(--blue), #6366F1 55%, var(--violet));
  box-shadow:0 12px 30px -14px rgba(59,130,246,.9);
}
.btn.solid::before{
  content:""; position:absolute; inset:0;
  background:linear-gradient(120deg, transparent 30%, rgba(255,255,255,.35) 48%, transparent 66%);
  transform:translateX(-120%);
  transition:transform .7s cubic-bezier(.2,.7,.3,1);
}
.btn.solid:hover::before{transform:translateX(120%);}
.btn.solid:hover{filter:brightness(1.06);}
.btn.lg{padding:.85rem 1.4rem; font-size:.95rem;}

.iconbtn{
  width:40px; height:40px; border-radius:999px; flex:none;
  display:inline-flex; align-items:center; justify-content:center;
  border:1px solid var(--line); background:var(--tile); color:var(--text); cursor:pointer;
  transition:border-color .25s, transform .25s;
}
.iconbtn:hover{border-color:rgba(120,170,255,.5); transform:translateY(-1px);}
.iconbtn svg{width:18px; height:18px; fill:none; stroke:currentColor; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round;}
html[data-theme="light"] .moon{display:none;}
html:not([data-theme="light"]) .sun{display:none;}

/* ============================ shared bits ============================ */
.section{margin:clamp(1.5rem,4vw,2.5rem) 0;}
.panel{
  position:relative; background:var(--panel); border:1px solid var(--line);
  border-radius:var(--radius); box-shadow:var(--glow); backdrop-filter:blur(8px);
}
.eyebrow{
  display:inline-flex; align-items:center; gap:.5rem;
  font-family:"JetBrains Mono", ui-monospace, monospace;
  font-size:.7rem; letter-spacing:.14em; text-transform:uppercase; color:var(--cyan);
}
.eyebrow svg{width:16px; height:16px; fill:none; stroke:currentColor; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round;}

h1,h2,h3{font-family:Sora,sans-serif; letter-spacing:-.025em;}
h2{font-weight:700; line-height:1.15; margin:.55rem 0 .55rem; font-size:clamp(1.45rem,3.2vw,1.9rem);}
h3{font-weight:600; letter-spacing:-.02em; margin:0;}
.lede{margin:.85rem 0 0; color:var(--muted); max-width:56ch; font-size:.96rem;}

.pill{
  display:inline-flex; align-items:center; gap:.55rem;
  border:1px solid var(--line); background:var(--tile);
  border-radius:999px; padding:.4rem .9rem;
  font-family:"JetBrains Mono", monospace; font-size:.7rem; letter-spacing:.14em; text-transform:uppercase; color:var(--text);
}
.pill i{width:8px; height:8px; border-radius:50%; background:var(--ok); box-shadow:0 0 0 4px rgba(52,211,153,.18);}

.chips{display:flex; flex-wrap:wrap; gap:.5rem;}
.chip{
  font-family:"JetBrains Mono", monospace; font-size:.7rem; letter-spacing:.05em;
  padding:.34rem .65rem; border-radius:999px;
  border:1px solid var(--line); background:var(--tile); color:var(--muted);
}

/* ============================ page header ============================ */
header.page{padding:clamp(2rem,5.5vw,3.4rem) 0 clamp(1.4rem,3.5vw,2.2rem);}
header.page h1{
  font-weight:800; font-size:clamp(2.2rem,5.6vw,3.5rem); line-height:1.04;
  letter-spacing:-.04em; margin:.9rem 0 0;
}
header.page h1 .grad{
  background:linear-gradient(96deg,#38BDF8 0%, #6366F1 46%, #C084FC 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
header.page .lede{max-width:62ch; font-size:1rem;}

/* ============================== footer ============================== */
footer{
  border-top:1px solid var(--line-soft); margin-top:1.5rem; padding:1.5rem 0 2.25rem;
  display:grid; grid-template-columns:auto minmax(0,1fr) auto auto;
  align-items:center; gap:1rem clamp(1.25rem,3vw,2.5rem);
  font-size:.82rem; color:var(--muted);
}
footer .brandwrap .brandtext b{font-size:.95rem;}
.quote{
  font-family:Caveat, cursive; font-size:1.08rem; line-height:1.3;
  color:var(--text); text-align:center; max-width:38ch; justify-self:center;
}
footer .socials a{width:34px; height:34px; border-radius:10px;}
footer .socials svg{width:17px; height:17px;}
.fmeta{display:flex; align-items:center; gap:.5rem 1.1rem; flex-wrap:wrap; justify-content:flex-end;}
.fmeta .made{display:inline-flex; align-items:center; gap:.35rem;}
.fmeta .heart{color:#F43F5E;}

.socials{display:flex; gap:.5rem;}
.socials a{
  width:40px; height:40px; border-radius:12px;
  display:inline-flex; align-items:center; justify-content:center;
  border:1px solid var(--line); background:var(--tile); color:var(--muted);
  transition:color .25s, border-color .25s, transform .25s;
}
.socials a:hover{color:var(--cyan); border-color:rgba(120,170,255,.55); transform:translateY(-2px);}
.socials svg{width:19px; height:19px; fill:none; stroke:currentColor; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round;}

/* ============================= motion ============================= */
@media (prefers-reduced-motion:no-preference){
  .rise{opacity:0; transform:translateY(14px); animation:rise .7s cubic-bezier(.2,.7,.3,1) forwards;}
  @keyframes rise{to{opacity:1; transform:none;}}

  /* only hide when JS can bring it back — no-JS visitors see everything */
  html.js .reveal{opacity:0; transform:translateY(18px); transition:opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1);}
  html.js .reveal.in{opacity:1; transform:none;}
}

/* ============================ responsive ============================ */
@media (max-width:900px){
  footer{grid-template-columns:1fr; justify-items:center; text-align:center;}
  .quote{justify-self:center;}
  .fmeta{justify-content:center;}
}

@media (max-width:640px){
  .navlinks{gap:1rem;}
}

@media (max-width:560px){
  .brandtext span{display:none;}
  .navcta-label{display:none;}
}

@media (max-width:420px){
  .brandtext{display:none;}
}

@media (max-width:400px){
  .navlinks a{font-size:.86rem;}
}

/* ==================================================================
   HOME
   ================================================================== */
.band{
  position:relative; overflow:hidden;
  background:linear-gradient(180deg, var(--band) 0%, rgba(4,10,28,.86) 100%);
  border-bottom:1px solid var(--line-soft);
}
html[data-theme="light"] .band{background:linear-gradient(180deg,#E7EEFB 0%, #DFE9F9 100%);}

.bandphoto{position:absolute; inset:0 0 0 auto; width:78%; z-index:1;}
.bandphoto img{width:100%; height:100%; object-fit:cover; object-position:52% 62%;}
.bandphoto::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(90deg, var(--band) 30%, rgba(4,10,28,.8) 42%, rgba(4,10,28,.2) 56%, transparent 70%);
}
html[data-theme="light"] .bandphoto::after{
  background:linear-gradient(90deg, #E7EEFB 30%, rgba(231,238,251,.82) 42%, rgba(231,238,251,.22) 56%, transparent 70%);
}

.hero{
  display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(1.5rem,4vw,2.5rem); align-items:center;
  padding:clamp(1.5rem,4vw,2.75rem) 0 clamp(2rem,5vw,3.25rem);
}
.hero h1{
  font-weight:800; font-size:clamp(2.4rem,5.6vw,3.9rem); line-height:1.02;
  letter-spacing:-.04em; margin:1.05rem 0 0;
}
.hero h1 .name{
  display:block;
  background:linear-gradient(96deg,#38BDF8 0%, #6366F1 46%, #C084FC 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.subhead{
  font-family:Sora,sans-serif; font-weight:600; letter-spacing:-.02em;
  font-size:clamp(1.05rem,2.1vw,1.28rem); line-height:1.4; margin:1rem 0 0; max-width:28ch;
}
.actions{display:flex; flex-wrap:wrap; gap:.7rem; margin:1.4rem 0 0;}

.meta{
  display:flex; flex-wrap:wrap; align-items:center; gap:.5rem 1rem;
  margin:1.3rem 0 0; font-size:.86rem; color:var(--muted);
}
.meta span{display:inline-flex; align-items:center; gap:.45rem;}
.meta svg{width:15px; height:15px; fill:none; stroke:currentColor; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round;}
.meta .sep{width:1px; height:15px; background:var(--line); padding:0;}
.meta .live{width:8px; height:8px; border-radius:50%; background:var(--ok); display:inline-block;}

.heroright{position:relative; min-height:26rem; display:flex; align-items:flex-end; justify-content:flex-end; padding-bottom:1.25rem;}
@media (prefers-reduced-motion:no-preference){
  .heroright{opacity:0; animation:rise .8s cubic-bezier(.2,.7,.3,1) .16s forwards;}
}

.script{
  position:absolute; right:1%; top:2%; z-index:3;
  font-family:Caveat, cursive; font-weight:600;
  font-size:clamp(1.35rem,2.3vw,1.85rem); line-height:1.08; color:#EAF1FF;
  text-shadow:0 2px 18px rgba(5,11,30,.9);
  transform:rotate(-7deg); text-align:right;
}
.script::after{
  content:""; display:block; height:2px; margin-top:.3rem;
  background:linear-gradient(90deg,transparent,#EAF1FF); margin-left:auto; width:80%;
  border-radius:2px;
}

.stats{
  position:relative; z-index:3; width:min(16rem,100%);
  background:rgba(8,18,48,.85); backdrop-filter:blur(10px);
  border:1px solid var(--line); border-radius:18px; box-shadow:var(--glow);
  padding:.35rem .45rem;
}
html[data-theme="light"] .stats{background:rgba(255,255,255,.92);}
.stat{display:flex; align-items:center; gap:.75rem; padding:.62rem .55rem;}
.stat + .stat{border-top:1px solid var(--line-soft);}
.stat .ic{
  width:38px; height:38px; flex:none; border-radius:12px;
  display:inline-flex; align-items:center; justify-content:center;
  background:linear-gradient(140deg, rgba(59,130,246,.3), rgba(168,85,247,.24));
  border:1px solid var(--line); color:var(--cyan);
}
.stat .ic svg{width:18px; height:18px; fill:none; stroke:currentColor; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round;}
.stat .num{font-family:Sora,sans-serif; font-weight:700; font-size:1.15rem; line-height:1.15; letter-spacing:-.02em;}
.stat .lbl{font-size:.75rem; color:var(--muted); line-height:1.3;}

/* ---- skills ---- */
.skills{display:grid; grid-template-columns:minmax(0,.9fr) minmax(0,2fr); gap:clamp(1.25rem,3vw,2rem); padding:clamp(1.4rem,3vw,2rem); align-items:center;}
.skills .divider{border-left:1px solid var(--line-soft); padding-left:clamp(1.25rem,3vw,2rem);}
.toolgrid{display:grid; grid-template-columns:repeat(6,minmax(0,1fr)); gap:.85rem;}
.tool{border:1px solid var(--line); border-radius:16px; overflow:hidden; background:var(--tile); transition:transform .25s, border-color .25s;}
.tool:hover{transform:translateY(-3px); border-color:rgba(120,170,255,.55);}
.tool img{width:100%; height:auto;}

.skilldetail{
  display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:clamp(1rem,2.5vw,1.5rem);
  padding:0 clamp(1.4rem,3vw,2rem) clamp(1.4rem,3vw,2rem);
}
.sk{border:1px solid var(--line-soft); background:var(--tile); border-radius:16px; padding:1.15rem 1.25rem;}
.sk h3{font-size:1rem; margin-bottom:.7rem;}
.sk ul{margin:0; padding:0; list-style:none; display:grid; gap:.45rem;}
.sk li{
  position:relative; padding-left:1.1rem; font-size:.9rem; color:var(--muted); line-height:1.45;
}
.sk li::before{
  content:""; position:absolute; left:0; top:.62em; width:5px; height:5px; border-radius:50%;
  background:linear-gradient(120deg,var(--cyan),var(--violet));
}

/* ---- about ---- */
.about{display:grid; grid-template-columns:minmax(0,.75fr) minmax(0,1.6fr); gap:clamp(1.4rem,3.5vw,2.25rem); padding:clamp(1.4rem,3vw,2rem); align-items:center;}
.about .portrait{border-radius:18px; overflow:hidden; border:1px solid var(--line); box-shadow:var(--glow);}
.about .portrait img{width:100%; height:100%; object-fit:cover; aspect-ratio:1/1;}
.about p + p{margin-top:.85rem;}
.about .body p{color:var(--muted); font-size:.96rem;}
.about .now{
  margin-top:1.15rem; padding-top:1.05rem; border-top:1px solid var(--line-soft);
  font-size:.9rem; color:var(--text);
}
.about .now .k{
  display:block; font-family:"JetBrains Mono",monospace; font-size:.68rem;
  letter-spacing:.14em; text-transform:uppercase; color:var(--cyan); margin-bottom:.35rem;
}

/* ---- featured project ---- */
.lower{display:grid; grid-template-columns:minmax(0,1.3fr) minmax(0,1fr); gap:clamp(1rem,2.5vw,1.5rem);}
.featured{display:grid; align-content:start; gap:clamp(1.1rem,2.5vw,1.6rem); padding:clamp(1.4rem,3vw,2rem);}
.featured h2 .light{font-weight:600; color:var(--muted);}
.featured .body > p{color:var(--muted); font-size:.93rem; margin:.3rem 0 1.15rem;}
.projectlinks{display:flex; flex-wrap:wrap; gap:.6rem;}
.topo{display:block; border-radius:16px; overflow:hidden; border:1px solid var(--line); background:rgba(4,10,28,.6); transition:border-color .25s, transform .25s;}
.topo:hover{border-color:rgba(120,170,255,.55); transform:translateY(-2px);}
.topo img{width:100%; height:auto; display:block;}

/* ---- certifications ---- */
.certs{padding:clamp(1.4rem,3vw,2rem);}
.certs p.sub{color:var(--muted); font-size:.93rem; margin:.15rem 0 1.15rem;}
.certgrid{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:.7rem;}
.cert{
  display:block; border:1px solid var(--line); border-radius:14px; background:var(--tile);
  padding:.8rem .85rem; transition:border-color .25s, transform .25s, box-shadow .25s;
}
.cert:hover{
  border-color:rgba(120,170,255,.55); transform:translateY(-2px);
  box-shadow:0 16px 34px -22px rgba(20,80,220,.5);
}
.cert .mark{font-family:Sora,sans-serif; font-weight:700; font-size:.7rem; letter-spacing:.06em; line-height:1.2;}
.cert .mark.cisco{color:#41A5EE;}
.cert .mark.comptia{color:#E8484A;}
.cert .nm{font-size:.85rem; margin-top:.3rem; line-height:1.3; font-weight:500;}
.cert .is{font-size:.72rem; color:var(--muted); line-height:1.3;}
.cert .verify{
  display:inline-flex; align-items:center; gap:.3rem; margin-top:.55rem;
  font-family:"JetBrains Mono",monospace; font-size:.62rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--cyan); transition:gap .25s;
}
.cert .verify svg{width:11px; height:11px; fill:none; stroke:currentColor; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round;}
.cert:hover .verify{gap:.45rem;}

/* ---- closing / contact ---- */
.closing{display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:1.25rem; padding:clamp(1.5rem,3.5vw,2.25rem);}
.closing p{color:var(--muted); margin-top:.4rem;}
.closing .right{display:flex; align-items:center; gap:.9rem; flex-wrap:wrap;}
.closing .addr{
  display:inline-block; margin-top:.9rem; font-family:"JetBrains Mono",monospace;
  font-size:.88rem; color:var(--cyan); border-bottom:1px solid rgba(34,211,238,.35); padding-bottom:2px;
}
.closing .addr:hover{border-bottom-color:var(--cyan);}

@media (max-width:1140px){
  .toolgrid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .skills{grid-template-columns:1fr;}
  .skills .divider{border-left:none; border-top:1px solid var(--line-soft); padding-left:0; padding-top:1.35rem;}
  .skilldetail{grid-template-columns:1fr;}
  .lower{grid-template-columns:1fr;}
  .script{right:38%;}
}

@media (max-width:900px){
  .band{display:flex; flex-direction:column-reverse; padding-bottom:1.25rem;}
  .band .wave.left{display:none;}
  .bandphoto{position:relative; width:auto; height:17rem; margin:0 clamp(1rem,4vw,2.25rem) 1.25rem; border-radius:18px; overflow:hidden;}
  .bandphoto img{object-position:50% 20%;}
  .bandphoto::after{background:linear-gradient(180deg, rgba(4,10,28,.5), transparent 45%);}
  html[data-theme="light"] .bandphoto::after{background:linear-gradient(180deg, rgba(231,238,251,.5), transparent 45%);}
  .hero{grid-template-columns:1fr; padding-bottom:1rem;}
  .heroright{min-height:0; justify-content:stretch;}
  .stats{width:100%; display:grid; grid-template-columns:repeat(2,1fr);}
  .stat + .stat{border-top:none;}
  .stat:nth-child(n+3){border-top:1px solid var(--line-soft);}
  .script{display:none;}
  .about{grid-template-columns:1fr;}
  .about .portrait{max-width:16rem;}
}

@media (max-width:560px){
  .toolgrid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .certgrid{grid-template-columns:1fr;}
  .closing{flex-direction:column; align-items:flex-start;}
}

/* ==================================================================
   LABS INDEX
   ================================================================== */
.group{padding:clamp(1rem,2.5vw,1.5rem) 0;}
.group-head{display:flex; align-items:baseline; gap:1rem; flex-wrap:wrap; margin-bottom:1.2rem; padding-bottom:.85rem; border-bottom:1px solid var(--line-soft);}
.group-head h2{margin:0; font-size:clamp(1.2rem,3vw,1.5rem);}
.group-head .mono{margin-left:auto;}

.lab-grid{display:grid; gap:1rem; grid-template-columns:repeat(auto-fill,minmax(19rem,1fr));}
.lab-card{
  display:block; border:1px solid var(--line); background:var(--panel);
  border-radius:18px; padding:1.4rem; box-shadow:var(--glow); backdrop-filter:blur(8px);
  transition:transform .35s cubic-bezier(.2,.7,.3,1), border-color .35s, box-shadow .35s;
}
.lab-card:hover{
  transform:translateY(-5px); border-color:rgba(120,170,255,.6);
  box-shadow:0 22px 50px -24px rgba(20,80,220,.55), var(--glow);
}
.lab-card .chips{margin-bottom:.85rem;}
.lab-card h3{font-size:1.08rem; line-height:1.35; margin:0 0 .55rem;}
.lab-card p{margin:0 0 .9rem; color:var(--muted); font-size:.9rem;}
.lab-card .go{
  display:inline-flex; align-items:center; gap:.4rem;
  font-family:"JetBrains Mono", monospace; font-size:.68rem;
  letter-spacing:.1em; text-transform:uppercase; color:var(--cyan);
}
.soon{
  border:1px dashed var(--line); border-radius:18px; padding:1.4rem;
  color:var(--muted); font-size:.9rem; display:flex; flex-direction:column; justify-content:center;
}

/* ==================================================================
   LAB WRITEUP
   ================================================================== */
.writeup section{padding:clamp(2rem,5vw,3.25rem) 0;}
.writeup .head{margin-bottom:1.6rem;}
.writeup h2 .num{color:var(--cyan); margin-right:.6rem; font-family:"JetBrains Mono",monospace; font-size:.85em;}
.section-lede{color:var(--muted); margin:0; max-width:62ch; font-size:.98rem;}

.meta-strip{
  display:flex; flex-wrap:wrap; gap:1.5rem 1.75rem;
  margin-top:2rem; padding-top:1.4rem; border-top:1px solid var(--line-soft);
}
.meta-strip .k{display:block; font-family:"JetBrains Mono",monospace; font-size:.68rem; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin-bottom:.3rem;}
.meta-strip .v{display:block; font-family:Sora, sans-serif; font-weight:600; font-size:.95rem;}

.topology-frame{
  border:1px solid var(--line); background:var(--panel); box-shadow:var(--glow);
  border-radius:18px; padding:.75rem; margin:1.5rem 0 0;
}
.topology-frame img{display:block; width:100%; height:auto; border-radius:12px;}
.topology-frame figcaption{
  font-family:"JetBrains Mono",monospace; font-size:.72rem; color:var(--muted);
  margin-top:.75rem; padding:0 .25rem; letter-spacing:.02em;
}

.table-wrap{overflow-x:auto; border:1px solid var(--line); border-radius:16px; margin-top:1.25rem; background:var(--panel);}
table{width:100%; border-collapse:collapse; font-size:.9rem; min-width:520px;}
thead th{
  text-align:left; font-family:"JetBrains Mono",monospace;
  font-size:.68rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted); font-weight:500;
  padding:.9rem 1rem; background:rgba(86,140,255,.06);
  border-bottom:1px solid var(--line);
}
tbody td{padding:.85rem 1rem; border-bottom:1px solid var(--line-soft); color:var(--text); vertical-align:top;}
tbody tr:last-child td{border-bottom:none;}
td.addr, td code{font-family:"JetBrains Mono",monospace; font-size:.82rem; color:var(--cyan);}

.cols{display:grid; gap:1.6rem 2.25rem; grid-template-columns:repeat(auto-fit,minmax(18rem,1fr)); margin-top:1.5rem;}
.cols h3{font-size:1.02rem; margin:.7rem 0 .5rem;}
.cols p{margin:0; color:var(--muted); font-size:.94rem;}
.bar{display:block; height:2px; width:2.25rem; border-radius:2px; background:linear-gradient(90deg,var(--cyan),var(--violet));}

pre{
  background:var(--code-bg); border:1px solid var(--line); border-radius:14px;
  padding:1.1rem 1.25rem; overflow-x:auto; margin:1rem 0 0;
}
pre code{font-family:"JetBrains Mono", ui-monospace, monospace; font-size:.82rem; line-height:1.65; color:#D5DFF2; white-space:pre;}
.code-label{
  font-family:"JetBrains Mono",monospace; font-size:.68rem; letter-spacing:.12em; text-transform:uppercase;
  color:var(--muted); margin:1.75rem 0 0;
}
.tok-comment{color:#7D91B8;}
.tok-kw{color:#A5B4FC;}
.tok-val{color:#6EE7B7;}

.verify-grid{display:grid; gap:.9rem; margin-top:1.5rem;}
.verify-item{
  display:flex; gap:.85rem; align-items:flex-start;
  padding:1rem 1.1rem; border:1px solid var(--line); background:var(--panel); border-radius:14px;
}
.verify-item .dot{flex:0 0 auto; width:9px; height:9px; margin-top:.55rem; border-radius:50%; background:var(--ok); box-shadow:0 0 8px var(--ok);}
.verify-item p{margin:0; font-size:.92rem; color:var(--muted);}
.verify-item p b{color:var(--text); font-weight:600;}

.fault{border:1px solid var(--line); background:var(--panel); border-radius:16px; padding:1.35rem 1.5rem; margin-top:1.25rem;}
.fault.highlight{border-color:rgba(245,185,66,.45); background:rgba(245,185,66,.06);}
.fault h3{font-size:1rem; margin:0 0 .6rem; display:flex; align-items:center; gap:.6rem; flex-wrap:wrap;}
.fault .tagline{
  font-family:"JetBrains Mono",monospace; font-size:.64rem; letter-spacing:.1em; text-transform:uppercase;
  padding:.25rem .55rem; border-radius:999px; border:1px solid rgba(245,185,66,.5); color:var(--warn);
}
.fault p{margin:.4rem 0 0; color:var(--muted); font-size:.92rem;}
.fault p b{color:var(--text); font-weight:600;}

.contact-card{
  border:1px solid var(--line); box-shadow:var(--glow);
  background:linear-gradient(160deg, rgba(99,102,241,.14), rgba(34,211,238,.05) 60%, transparent), var(--panel);
  border-radius:24px; padding:clamp(1.6rem,4vw,2.5rem);
  display:flex; flex-wrap:wrap; gap:1.5rem; align-items:center; justify-content:space-between;
}
.contact-card h2{max-width:20ch; margin:0;}

@media (max-width:820px){
  .contact-card{flex-direction:column; align-items:flex-start;}
}