:root{
  --bg:#0b1426;--bg2:#0f1b33;--card:#13213d;--line:rgba(255,255,255,.09);
  --text:#e8eefb;--muted:#9fb0cf;--accent:#ff7a1a;--accent2:#6fd3ff;
  --r:16px;--max:1160px;
  --head:'Space Grotesk',system-ui,sans-serif;--body:'Inter',system-ui,sans-serif
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font:400 16px/1.65 var(--body);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{width:min(var(--max),100% - 40px);margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#000;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

h1,h2,h3{font-family:var(--head);line-height:1.12;letter-spacing:-.02em}
h1{font-size:clamp(2.4rem,6vw,4.4rem);font-weight:700}
h2{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:600;margin-bottom:16px}
h3{font-size:1.15rem;font-weight:600;margin-bottom:8px}
p{color:var(--muted)}
.eyebrow{font:600 .78rem/1 var(--head);letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.grad{background:linear-gradient(90deg,var(--accent),#ffb347);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.15rem;max-width:620px;margin:22px 0 32px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border-radius:999px;font:600 .95rem var(--body);border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--accent);color:#1a0d00;box-shadow:0 8px 28px -8px rgba(255,122,26,.7)}
.btn-primary:hover{box-shadow:0 12px 34px -6px rgba(255,122,26,.85)}
.btn-ghost{border-color:var(--line);background:rgba(255,255,255,.04);color:var(--text)}
.btn-ghost:hover{background:rgba(255,255,255,.09)}
.btn-sm{padding:9px 18px;font-size:.88rem}
:focus-visible{outline:2px solid var(--accent2);outline-offset:3px}

/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,backdrop-filter .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.stuck{background:rgba(11,20,38,.82);backdrop-filter:blur(14px);border-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;color:var(--accent);font:700 1.1rem var(--head);letter-spacing:.06em}
.logo span{color:var(--text);display:flex;flex-direction:column;line-height:1}
.logo em{font:500 .6rem var(--body);letter-spacing:.32em;color:var(--muted);text-transform:uppercase;margin-top:4px}
.menu{display:flex;align-items:center;gap:30px}
.menu a:not(.btn){font-weight:500;font-size:.95rem;color:var(--muted);transition:color .2s}
.menu a:not(.btn):hover{color:var(--text)}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer}
.burger span{display:block;height:2px;width:24px;background:var(--text);margin:6px auto;transition:.25s}

/* hero */
.hero{position:relative;overflow:hidden;min-height:100svh;display:flex;align-items:center;padding:120px 0 70px;
  background:radial-gradient(900px 500px at 80% 10%,rgba(111,211,255,.14),transparent 60%),radial-gradient(700px 500px at 0 100%,rgba(255,122,26,.14),transparent 60%),var(--bg)}
.grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at 60% 40%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at 60% 40%,#000 20%,transparent 75%)}
.gear{position:absolute;color:var(--accent2);opacity:.2;animation:spin 40s linear infinite}
.gear-a{width:min(52vw,520px);right:-6%;top:12%}
.gear-b{width:min(30vw,300px);right:30%;bottom:-4%;color:var(--accent);animation-direction:reverse;animation-duration:26s}
@keyframes spin{to{transform:rotate(360deg)}}
.hero-in{position:relative}
.cta{display:flex;flex-wrap:wrap;gap:14px}
.stats{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:64px;padding-top:28px;border-top:1px solid var(--line)}
.stats b{display:block;font:700 1.55rem var(--head);color:var(--text)}
.stats span{font-size:.85rem;color:var(--muted)}

/* sections */
.sec{padding:100px 0}
.sec.alt{background:var(--bg2)}
.head{max-width:640px;margin-bottom:48px}
.sub{font-size:1.05rem}
.two{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.two p+p{margin-top:14px}
.ticks{list-style:none;margin-top:22px;display:grid;gap:10px}
.ticks li{position:relative;padding-left:30px;color:var(--text)}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:16px;height:9px;border-left:2.5px solid var(--accent);border-bottom:2.5px solid var(--accent);transform:rotate(-45deg)}
.about-card{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--card);box-shadow:0 30px 60px -30px #000}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:30px;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-6px);border-color:rgba(255,122,26,.5);box-shadow:0 24px 40px -24px rgba(255,122,26,.35)}
.ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:rgba(255,122,26,.12);margin-bottom:20px}
.ico svg{width:26px;height:26px;fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* steps */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.steps li{position:relative;padding:28px 24px;border-left:2px solid var(--line)}
.steps li:hover{border-color:var(--accent)}
.steps span{font:700 2.6rem var(--head);color:transparent;-webkit-text-stroke:1px var(--accent);display:block;margin-bottom:6px}

/* portfolio */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.chip{border:1px solid var(--line);background:transparent;color:var(--muted);padding:9px 18px;border-radius:999px;font:500 .9rem var(--body);cursor:pointer;transition:.2s}
.chip:hover{color:var(--text)}
.chip.on{background:var(--accent);border-color:var(--accent);color:#1a0d00}
.work{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.item{position:relative;display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .25s,border-color .25s}
.item:hover{transform:translateY(-5px);border-color:var(--accent2)}
.item.hide{display:none}
.thumb{aspect-ratio:4/3;display:grid;place-items:center;position:relative;background:linear-gradient(135deg,hsl(var(--h) 55% 22%),hsl(var(--h) 60% 12%))}
.thumb::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:22px 22px}
.thumb svg{width:44%;position:relative;color:hsl(var(--h) 90% 70%);transition:transform .6s}
.item:hover .thumb svg{transform:rotate(60deg) scale(1.08)}
.thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.meta{padding:16px 18px 20px}
.meta small{font:600 .68rem var(--head);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.meta h3{margin:6px 0 4px;font-size:1.02rem}
.meta p{font-size:.84rem;line-height:1.5}
.more{margin-top:36px;text-align:center}

/* tools */
.tools{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:46px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(120deg,rgba(255,122,26,.14),rgba(111,211,255,.08))}
.tools h2{margin-bottom:8px}
.tool-links{display:flex;flex-wrap:wrap;gap:12px}

/* contact */
.info{margin-top:30px;display:grid;gap:20px}
.info dt{font:600 .75rem var(--head);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:4px}
.info dd{color:var(--text)}
.info a:hover{color:var(--accent)}
.form{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:32px;display:grid;gap:16px}
.form label{display:grid;gap:6px;font-size:.85rem;font-weight:500;color:var(--muted)}
.form input,.form textarea{background:var(--bg);border:1px solid var(--line);border-radius:10px;color:var(--text);padding:13px 14px;font:inherit;transition:border-color .2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.hp{position:absolute!important;left:-9999px}
.note{min-height:1.4em;font-size:.9rem}
.note.ok{color:#5be3a0}.note.err{color:#ff7d7d}

.foot{border-top:1px solid var(--line);padding:28px 0;font-size:.88rem;color:var(--muted)}
.foot-in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.foot a:hover{color:var(--accent)}

.notfound{display:grid;place-items:center;min-height:100vh;text-align:center;padding:24px}
.notfound main{display:grid;gap:16px;justify-items:center}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

@media(max-width:1000px){
  .work{grid-template-columns:repeat(3,1fr)}
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
  .two{grid-template-columns:1fr;gap:36px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .work{grid-template-columns:repeat(2,1fr)}
  .tools{flex-direction:column;align-items:flex-start;padding:30px}
  .burger{display:block}
  .menu{position:fixed;inset:68px 0 auto;flex-direction:column;align-items:stretch;gap:0;padding:12px 20px 24px;background:rgba(11,20,38,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .3s}
  .menu.open{transform:none}
  .menu a:not(.btn){padding:14px 4px;border-bottom:1px solid var(--line)}
  .menu .btn{margin-top:16px}
  .burger[aria-expanded=true] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .burger[aria-expanded=true] span:nth-child(2){opacity:0}
  .burger[aria-expanded=true] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
}
@media(max-width:560px){
  .sec{padding:72px 0}
  .cards,.steps{grid-template-columns:1fr}
  .work{grid-template-columns:1fr 1fr;gap:12px}
  .form{padding:22px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* added: stack, tags, library */
.stack{margin-top:34px;padding:26px 30px;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}
.stack b{color:var(--text)}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tags li{padding:6px 14px;border-radius:999px;font-size:.84rem;color:var(--accent2);border:1px solid rgba(111,211,255,.3);background:rgba(111,211,255,.06)}
.cards.lib{grid-template-columns:repeat(4,1fr);gap:18px}
.cards.lib .card{display:block;padding:24px}
.cards.lib small{font:600 .68rem var(--head);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:10px}
.cards.lib p{font-size:.88rem}
@media(max-width:1000px){.cards.lib{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.cards.lib{grid-template-columns:1fr}}