/* =========================================================
   PROPOSAL 2 — "BLUEPRINT"
   Engineering drawing aesthetic: blueprint grid, rotating
   gears, self-drawing dimension lines, live crosshair.
   ========================================================= */
:root{
  --bp:#0b2a4a;
  --bp-deep:#071d35;
  --line:rgba(173,216,255,.9);
  --line-soft:rgba(173,216,255,.18);
  --text:#e8f2ff;
  --muted:#9ebfe0;
  --amber:#ffb020;
  --amber-soft:rgba(255,176,32,.15);
  --mono:'JetBrains Mono',monospace;
  --head:'Rajdhani',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;color:var(--text);background:var(--bp-deep);line-height:1.7;overflow-x:hidden;cursor:crosshair}
a{color:inherit;text-decoration:none}

/* ---------- Blueprint background ---------- */
.grid{position:fixed;inset:0;z-index:-3;background:
    linear-gradient(var(--line-soft) 1px,transparent 1px) 0 0/100px 100px,
    linear-gradient(90deg,var(--line-soft) 1px,transparent 1px) 0 0/100px 100px,
    linear-gradient(rgba(173,216,255,.06) 1px,transparent 1px) 0 0/20px 20px,
    linear-gradient(90deg,rgba(173,216,255,.06) 1px,transparent 1px) 0 0/20px 20px,
    radial-gradient(ellipse at center,var(--bp),var(--bp-deep) 80%);
  animation:pan 60s linear infinite}
@keyframes pan{to{background-position:100px 100px,100px 100px,20px 20px,20px 20px,0 0}}
#cad{position:fixed;inset:0;z-index:-2;pointer-events:none}
.coords{position:fixed;right:18px;bottom:16px;z-index:40;font-family:var(--mono);font-size:.72rem;color:var(--muted);background:rgba(7,29,53,.85);border:1px solid var(--line-soft);padding:6px 10px}

/* ---------- Navigation as title block ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(7,29,53,.82);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-soft)}
.nav{max-width:1240px;margin:auto;display:flex;align-items:stretch;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;padding:12px 20px;border-right:1px solid var(--line-soft)}
/* same turn as the footer logo, also when hovering any header link */
.brand svg{width:40px;height:40px;transition:transform .6s}
.brand:hover svg,header:has(.nav ul a:hover,.subnav a:hover) .brand svg{transform:rotate(60deg)}
.brand svg .stroke{stroke-dasharray:300;stroke-dashoffset:0;transition:stroke-dashoffset 1.2s}
.brand:hover svg .stroke{animation:redraw 1.4s ease}
@keyframes redraw{0%{stroke-dashoffset:300}100%{stroke-dashoffset:0}}
.brand b{font-family:var(--head);font-size:1.3rem;letter-spacing:.06em}
.brand small{display:block;font-family:var(--mono);font-size:.62rem;color:var(--muted);letter-spacing:.15em;margin-top:-4px}
.nav ul{display:flex;list-style:none}
.nav li{border-left:1px solid var(--line-soft)}
.nav ul a{display:flex;flex-direction:column;justify-content:center;height:100%;padding:0 22px;font-family:var(--head);font-weight:600;letter-spacing:.08em;text-transform:uppercase;font-size:.95rem;position:relative;transition:background .3s,color .3s}
.nav ul a small{font-family:var(--mono);font-size:.6rem;color:var(--muted);letter-spacing:.1em;transition:color .3s}
.nav ul a::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--amber);transition:width .35s}
.nav ul a:hover{background:rgba(173,216,255,.06)}
.nav ul a:hover::after,.nav ul a.active::after{width:100%}
.nav ul a.active{color:var(--amber)}
.nav ul a.active small{color:var(--amber)}
.burger{display:none;background:none;border:0;border-left:1px solid var(--line-soft);color:var(--text);padding:0 20px;font-family:var(--mono);cursor:pointer}

/* ---------- Sub menu: external sites (open in new tab) ---------- */
.subnav{border-top:1px solid var(--line-soft);background:rgba(4,18,34,.6)}
.subnav-inner{max-width:1240px;margin:auto;display:flex;align-items:center;justify-content:flex-end;gap:4px;padding:0 12px;overflow-x:auto;scrollbar-width:none}
.subnav-inner::-webkit-scrollbar{display:none}
.subnav .ref{font-family:var(--mono);font-size:.62rem;letter-spacing:.18em;color:var(--amber);margin-right:8px;white-space:nowrap}
.subnav a{position:relative;display:inline-flex;align-items:center;gap:6px;padding:7px 14px;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted);white-space:nowrap;transition:color .3s,background .3s}
.subnav a+a::before{content:"";position:absolute;left:0;top:30%;bottom:30%;width:1px;background:var(--line-soft)}
.subnav a::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:1px;background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.subnav a i{font-style:normal;color:var(--amber);opacity:.6;transition:transform .3s,opacity .3s}
.subnav a:hover{color:var(--text);background:rgba(173,216,255,.05)}
.subnav a:hover::after{transform:scaleX(1)}
.subnav a:hover i{opacity:1;transform:translate(2px,-2px)}

/* ---------- Layout ---------- */
section{min-height:100vh;padding:160px 24px 90px;display:flex;align-items:center;position:relative}
.container{max-width:1240px;margin:auto;width:100%}
.sec-label{font-family:var(--mono);font-size:.78rem;color:var(--amber);letter-spacing:.2em;display:flex;align-items:center;gap:12px;margin-bottom:12px}
.sec-label::before{content:"";width:40px;height:1px;background:var(--amber)}
h2{font-family:var(--head);font-size:clamp(2.2rem,4.5vw,3.4rem);line-height:1.05;letter-spacing:.02em;margin-bottom:20px;text-transform:uppercase}
h2 em{font-style:normal;color:var(--amber)}
.muted{color:var(--muted)}

/* frame with CAD corner marks */
.frame{position:relative;border:1px solid var(--line-soft);background:rgba(7,29,53,.55);padding:28px;transition:border-color .3s,transform .3s,background .3s}
/* corner marks grow over the whole frame on hover, so they must let clicks through to the form fields */
.frame::before,.frame::after{content:"";position:absolute;width:16px;height:16px;border:2px solid var(--amber);transition:.35s;pointer-events:none}
.frame::before{top:-2px;left:-2px;border-right:0;border-bottom:0}
.frame::after{bottom:-2px;right:-2px;border-left:0;border-top:0}
.frame:hover{border-color:var(--line);background:rgba(11,42,74,.75)}
.frame:hover::before,.frame:hover::after{width:calc(100% + 4px);height:calc(100% + 4px)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;font-family:var(--head);font-weight:700;font-size:1rem;letter-spacing:.12em;text-transform:uppercase;border:1.5px solid var(--amber);color:var(--amber);background:transparent;cursor:pointer;position:relative;overflow:hidden;isolation:isolate;transition:color .35s}
.btn::before{content:"";position:absolute;inset:0;background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .35s cubic-bezier(.7,0,.3,1);z-index:-1}
.btn:hover{color:var(--bp-deep)}
.btn:hover::before{transform:scaleX(1)}
.btn.solid{background:var(--amber);color:var(--bp-deep)}
.btn.solid::before{background:var(--text)}
.btn svg{width:18px;height:18px;transition:transform .3s}
.btn:hover svg{transform:rotate(90deg)}
.btn:active{transform:scale(.96)}

/* ---------- Home ---------- */
#home .container{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.hero h1{font-family:var(--head);font-size:clamp(3rem,7vw,5.8rem);line-height:.95;text-transform:uppercase;letter-spacing:.01em;margin:10px 0 22px}
.hero h1 .outline{-webkit-text-stroke:1.5px var(--line);color:transparent}
.hero h1 .amber{color:var(--amber)}
.hero p{max-width:540px;color:var(--muted);font-size:1.08rem;margin-bottom:30px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.spec{display:flex;gap:30px;margin-top:40px;font-family:var(--mono);font-size:.78rem;color:var(--muted)}
.spec b{display:block;font-family:var(--head);font-size:1.8rem;color:var(--text)}
/* technical drawing of the logo */
.drawing{position:relative;aspect-ratio:1}
.drawing svg{width:100%;height:100%;overflow:visible}
.drawing .draw{stroke-dasharray:1200;stroke-dashoffset:1200;animation:draw 3s ease forwards}
.drawing .draw.d2{animation-delay:.8s}.drawing .draw.d3{animation-delay:1.6s}
@keyframes draw{to{stroke-dashoffset:0}}
/* RM set in the hero heading font, outlined first then filled */
.drawing .rm-text{font-family:var(--head);font-weight:700;font-size:150px;letter-spacing:.02em;fill:#e8f2ff;fill-opacity:0;stroke:#e8f2ff;stroke-width:1.5;stroke-dasharray:900;stroke-dashoffset:900;animation:draw 2.4s .8s ease forwards,fillin .8s 2.6s forwards}
@keyframes fillin{to{fill-opacity:1;stroke-width:0}}
.drawing .dim{opacity:0;animation:fadein .6s 2.6s forwards}
@keyframes fadein{to{opacity:1}}
.drawing .spin{transform-origin:200px 200px;animation:rot 30s linear infinite}
@keyframes rot{to{transform:rotate(360deg)}}

/* ---------- About ---------- */
#about .container{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.title-block{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line-soft);font-family:var(--mono);font-size:.8rem}
.title-block div{padding:12px 16px;border:1px solid var(--line-soft);transition:background .3s}
.title-block div:hover{background:var(--amber-soft)}
.title-block span{display:block;color:var(--muted);font-size:.65rem;letter-spacing:.15em}
.title-block .wide{grid-column:span 2}
.about-text p{color:var(--muted);margin-bottom:16px}

/* ---------- Skills ---------- */
.skills-top{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:40px 0}
.skill{text-align:left}
.skill .ico{width:58px;height:58px;border:1.5px solid var(--line);display:grid;place-items:center;margin-bottom:16px;transition:transform .5s,border-color .3s,color .3s}
.skill .ico svg{width:28px;height:28px}
.skill:hover .ico{transform:rotate(45deg);border-color:var(--amber);color:var(--amber)}
.skill:hover .ico svg{transform:rotate(-45deg)}
.skill .ico svg{transition:transform .5s}
.skill h3{font-family:var(--head);font-size:1.35rem;text-transform:uppercase;letter-spacing:.04em}
.skill p{color:var(--muted);font-size:.88rem}
.bom{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:.82rem}
.bom th,.bom td{border:1px solid var(--line-soft);padding:12px 14px;text-align:left}
.bom th{color:var(--amber);font-weight:600;letter-spacing:.1em;font-size:.72rem;background:rgba(255,176,32,.06)}
.bom tr{transition:background .25s}
.bom tbody tr:hover{background:rgba(173,216,255,.07)}
.meter{height:6px;background:var(--line-soft);position:relative;min-width:120px}
.meter i{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--amber);transition:width 1.5s cubic-bezier(.2,.8,.2,1)}
.meter i::after{content:"";position:absolute;right:-1px;top:-5px;bottom:-5px;width:2px;background:var(--text)}
/* ---------- Connected sites ---------- */
.network{margin-top:70px}
.net-head{margin-bottom:26px}
.net-head h3{font-family:var(--head);font-size:clamp(1.6rem,3vw,2.2rem);text-transform:uppercase;line-height:1.1;margin-bottom:6px}
.net-head h3 em{font-style:normal;color:var(--amber)}
/* 6 cards: 3 x 2 on desktop, 2 x 3 on tablets, 1 column on phones */
.net-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line-soft);background:rgba(7,29,53,.55)}
.net-card{position:relative;display:flex;flex-direction:column;padding:22px 20px 20px;border-right:1px solid var(--line-soft);overflow:hidden;transition:background .35s}
.net-card:nth-child(3n){border-right:0}
.net-card:nth-child(-n+3){border-bottom:1px solid var(--line-soft)}
/* amber bar that sweeps across the top on hover */
.net-card::before{content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .45s cubic-bezier(.7,0,.3,1)}
/* faint hatching, like a section cut, revealed on hover */
.net-card::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(-45deg,rgba(255,176,32,.06) 0 1px,transparent 1px 9px);opacity:0;transition:opacity .4s;pointer-events:none}
.net-card:hover{background:rgba(11,42,74,.85)}
.net-card:hover::before{transform:scaleX(1)}
.net-card:hover::after{opacity:1}
.nc-top{display:flex;justify-content:space-between;font-family:var(--mono);font-size:.66rem;letter-spacing:.15em;color:var(--muted);margin-bottom:22px}
.nc-top .ext{color:var(--amber);font-size:.9rem;transition:transform .3s}
.net-card:hover .nc-top .ext{transform:translate(3px,-3px)}
.nc-ico{width:58px;height:58px;border-radius:50%;border:1.5px dashed var(--line);display:grid;place-items:center;color:var(--text);margin-bottom:18px;transition:border-color .3s,color .3s,transform .7s}
.nc-ico svg{width:26px;height:26px;transition:transform .7s}
.net-card:hover .nc-ico{border-color:var(--amber);color:var(--amber);transform:rotate(180deg)}
.net-card:hover .nc-ico svg{transform:rotate(-180deg)}
.net-card h4{font-family:var(--head);font-size:1.3rem;text-transform:uppercase;letter-spacing:.03em;line-height:1.15;margin-bottom:6px}
.net-card p{font-size:.84rem;color:var(--muted);line-height:1.55;margin-bottom:14px;flex:1}
.net-card code{font-family:var(--mono);font-size:.66rem;color:var(--muted);opacity:.8;margin-bottom:14px}
.nc-cta{font-family:var(--head);font-weight:700;font-size:.85rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);display:inline-flex;gap:8px;align-items:center}
.nc-cta b{transition:transform .3s}
.net-card:hover .nc-cta b{transform:translateX(6px)}

/* ---------- Education ---------- */
.rev-table{display:grid;gap:0;border:1px solid var(--line-soft);margin-top:30px}
.rev{display:grid;grid-template-columns:1fr 1fr 60px;border-bottom:1px solid var(--line-soft);transition:background .3s,padding .3s}
.rev:last-child{border-bottom:0}
.rev>*{padding:20px 18px;border-right:1px solid var(--line-soft)}
.rev>*:last-child{border-right:0}
.rev:hover{background:rgba(255,176,32,.07)}
.rev:hover .rv{color:var(--bp-deep);background:var(--amber)}
.rev h3{font-family:var(--head);font-size:1.25rem;text-transform:uppercase;line-height:1.2}
.rev p{color:var(--muted);font-size:.88rem}
.rev .rv{font-family:var(--mono);text-align:center;font-weight:600;transition:.3s}
.rev.head{font-family:var(--mono);font-size:.7rem;letter-spacing:.15em;color:var(--muted)}
.rev.head>*{padding:10px 18px}
.rev.head:hover{background:none}

/* ---------- Contact ---------- */
#contact .container{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px}
.c-item{display:flex;gap:16px;align-items:center;padding:16px 0;border-bottom:1px dashed var(--line-soft);transition:padding .3s,color .3s}
.c-item:hover{padding-left:12px;color:var(--amber)}
.c-item svg{width:22px;height:22px;flex-shrink:0;color:var(--amber)}
.c-item span{font-family:var(--mono);font-size:.7rem;color:var(--muted);display:block;letter-spacing:.12em}
.social{display:flex;gap:10px;margin-top:26px}
.social a{width:46px;height:46px;border:1px solid var(--line-soft);display:grid;place-items:center;transition:.3s}
.social a svg{width:19px;height:19px}
.social a:hover{border-color:var(--amber);color:var(--amber);transform:translateY(-4px)}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
form label{display:block;font-family:var(--mono);font-size:.7rem;color:var(--amber);letter-spacing:.15em;margin:0 0 6px}
form input,form textarea,form select{width:100%;background:transparent;border:0;border-bottom:1.5px solid var(--line-soft);color:var(--text);font:inherit;padding:10px 2px;outline:none;transition:border-color .3s;margin-bottom:22px}
form select option{background:var(--bp-deep)}
form textarea{min-height:110px;resize:vertical}
form input:focus,form textarea:focus,form select:focus{border-color:var(--amber)}
form .invalid{border-color:#ff6b6b}
form .hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-note{font-size:.8rem;color:var(--muted);margin:-6px 0 18px}
.form-status{font-family:var(--mono);font-size:.8rem;margin-top:16px;min-height:1.2em}
.form-status.ok{color:#7ee2a8}
.form-status.err{color:#ff6b6b}

/* ---------- Footer (title block) ---------- */
footer{border-top:1px solid var(--line-soft);padding:60px 24px 28px;background:rgba(5,20,38,.92)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;border:1px solid var(--line-soft)}
.foot-grid>div{padding:28px 26px;border-right:1px solid var(--line-soft)}
.foot-grid>div:last-child{border-right:0}
.brand-row{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.brand-row svg{width:46px;height:46px;transition:transform .6s}
.brand-row:hover svg{transform:rotate(60deg)}
.brand-row b{font-family:var(--head);font-size:1.35rem;letter-spacing:.06em;display:block;line-height:1.1}
.brand-row small{font-family:var(--mono);font-size:.62rem;letter-spacing:.2em;color:var(--amber)}
.foot-brand p{color:var(--muted);font-size:.88rem;margin-bottom:18px;max-width:300px}
.to-top{display:inline-block;font-family:var(--mono);font-size:.7rem;letter-spacing:.15em;color:var(--amber);border:1px solid var(--amber);padding:8px 14px;transition:background .3s,color .3s}
.to-top:hover{background:var(--amber);color:var(--bp-deep)}
.foot-col h5{font-family:var(--mono);font-size:.68rem;font-weight:600;letter-spacing:.2em;color:var(--amber);margin-bottom:14px;padding-bottom:10px;border-bottom:1px dashed var(--line-soft)}
.foot-col a,.foot-col .loc{display:block;font-size:.9rem;color:var(--muted);padding:4px 0;transition:color .25s,transform .25s}
.foot-col>a:hover{color:var(--text);transform:translateX(6px)}
.foot-col a i{font-style:normal;color:var(--amber);font-size:.8rem}
.foot-col .social{margin-top:14px}
.foot-col .social a{display:grid;place-items:center;padding:0;width:40px;height:40px}
.title-strip{display:grid;grid-template-columns:repeat(5,auto) 1fr;border:1px solid var(--line-soft);border-top:0;font-family:var(--mono);font-size:.74rem;color:var(--text)}
.title-strip>div{padding:10px 16px;border-right:1px solid var(--line-soft)}
.title-strip>div:last-child{border-right:0;text-align:right}
.title-strip span{display:block;font-size:.58rem;letter-spacing:.18em;color:var(--muted)}
.title-strip .yr{display:inline;font-size:inherit;letter-spacing:0;color:inherit}

.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s,transform .8s}
.reveal.in{opacity:1;transform:none}

@media (max-width:980px){
  #home .container,#about .container,#contact .container{grid-template-columns:1fr}
  .drawing{max-width:420px;margin:auto}
  .skills-top{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .title-strip{grid-template-columns:repeat(3,1fr)}
  .nav ul a{padding:0 14px}
}
@media (max-width:820px){
  body{cursor:auto}
  .burger{display:block}
  .subnav-inner{justify-content:flex-start}
  .nav ul{position:absolute;top:100%;left:0;right:0;z-index:2;flex-direction:column;background:var(--bp-deep);border-bottom:1px solid var(--line-soft);max-height:0;overflow:hidden;transition:max-height .4s}
  .nav ul.open{max-height:400px}
  .nav li{border-left:0;border-top:1px solid var(--line-soft)}
  .nav ul a{padding:14px 24px}
  .rev{grid-template-columns:1fr 50px}
  .rev>*:nth-child(2){display:none}
  .bom .hide-sm{display:none}
  form .row{grid-template-columns:1fr}
  .net-grid{grid-template-columns:1fr 1fr}
  .net-card:nth-child(3n){border-right:1px solid var(--line-soft)}
  .net-card:nth-child(2n){border-right:0}
  .net-card{border-bottom:1px solid var(--line-soft)}
  .net-card:nth-last-child(-n+2){border-bottom:0}
  .foot-grid>div:nth-child(2n){border-right:0}
  .foot-grid>div:nth-child(-n+2){border-bottom:1px solid var(--line-soft)}
  .title-strip{grid-template-columns:1fr 1fr}
  .title-strip>div:nth-child(2n){border-right:0}
  .title-strip>div{border-bottom:1px solid var(--line-soft)}
  .title-strip>div:nth-last-child(-n+2){border-bottom:0}
  .title-strip>div:last-child{text-align:left}
  .coords{display:none}
}
@media (max-width:520px){
  .skills-top{grid-template-columns:1fr}.spec{gap:18px}
  .net-grid,.foot-grid{grid-template-columns:1fr}
  .net-card,.net-card:nth-child(3n),.foot-grid>div{border-right:0}
  .net-card,.net-card:nth-last-child(-n+2){border-bottom:1px solid var(--line-soft)}
  .net-card:last-child{border-bottom:0}
  .foot-grid>div{border-bottom:1px solid var(--line-soft)}
  .foot-grid>div:last-child{border-bottom:0}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}.drawing .draw{stroke-dashoffset:0}.drawing .dim{opacity:1}}