/* ================================================================
   UniPCBA — shared site stylesheet · Tech Minimal (Linear / Stripe)
   Used by: capabilities.html · projects.html · quality.html ·
            team.html · contact.html · quote.html
   Zero CDN · system fonts · near-black canvas · indigo accent
   ================================================================ */
:root{
  --bg:#0b0d10;--bg-2:#111317;--bg-3:#17191f;--bg-4:#1c1f26;
  --line:rgba(255,255,255,.08);--line-2:rgba(255,255,255,.16);--line-accent:rgba(94,106,210,.5);
  --text:#f7f8f8;--text-2:#a1a6ad;--muted:#6b7280;
  --accent:#5e6ad2;--accent-2:#828fff;--accent-soft:rgba(94,106,210,.12);
  --green:#56b89b;--red:#ff5c5c;
  --r-xs:6px;--r-sm:8px;--r-md:12px;--r-lg:16px;
  --sh-1:0 1px 0 rgba(255,255,255,.03) inset, 0 8px 24px rgba(0,0,0,.28);
  --ease:cubic-bezier(.16,1,.3,1);--fast:.2s;--norm:.45s;--slow:.7s;
  --font:'Inter',-apple-system,'SF Pro Display',system-ui,'Segoe UI',Roboto,sans-serif;
  --mono:ui-monospace,'SF Mono','JetBrains Mono',Menlo,Consolas,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{line-height:1.15;font-weight:680;letter-spacing:-0.02em}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
svg{display:block}
.container{width:min(1180px,92%);margin:0 auto}
::selection{background:rgba(94,106,210,.35);color:#fff}
.mono{font-family:var(--mono);letter-spacing:0}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--bg-4);border-radius:6px;border:2px solid var(--bg)}

/* ---------- scroll progress ---------- */
.scroll-progress{position:fixed;top:0;left:0;height:2px;width:100%;z-index:300;background:linear-gradient(90deg,var(--accent),var(--accent-2));transform-origin:0 0;transform:scaleX(0)}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:250;background:rgba(11,13,16,.7);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:background var(--norm) var(--ease),border-color var(--norm) var(--ease),box-shadow var(--norm) var(--ease)}
.site-header.scrolled{background:rgba(11,13,16,.92);border-bottom-color:var(--line-2);box-shadow:0 8px 24px rgba(0,0,0,.24)}
.hdr-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:680;font-size:17px;letter-spacing:-0.02em;white-space:nowrap}
.brand .mark{width:28px;height:28px;border-radius:var(--r-xs);background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:600;color:#fff;flex-shrink:0}
.nav{display:flex;gap:4px}
.nav-link{font-size:14px;font-weight:500;color:var(--text-2);padding:9px 13px;border-radius:var(--r-xs);transition:color var(--fast) var(--ease),background var(--fast) var(--ease)}
.nav-link:hover{color:var(--text);background:var(--bg-3)}
.nav-link.active{color:var(--accent-2);background:var(--accent-soft)}

/* ---------- buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--font);font-weight:600;font-size:14.5px;padding:13px 24px;border-radius:var(--r-xs);cursor:pointer;border:none;white-space:nowrap;transition:all var(--fast) var(--ease);overflow:hidden}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 0 0 1px rgba(255,255,255,.06) inset}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-1px)}
.btn-primary .arr{transition:transform var(--fast) var(--ease)}
.btn-primary:hover .arr{transform:translateX(3px)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line-2)}
.btn-ghost:hover{border-color:var(--accent);color:#fff;background:var(--accent-soft)}
.btn-sm{padding:10px 17px;font-size:13.5px}
.header-cta{flex-shrink:0}

/* ---------- kicker / section ---------- */
.kicker{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:2px;color:var(--accent-2);margin-bottom:16px}
.kicker::before{content:"//";color:var(--muted);letter-spacing:0}
.kicker.center::after{content:"//";color:var(--muted);letter-spacing:0}
section{position:relative;padding:96px 0}
.sec-head{max-width:680px;margin:0 auto 60px;text-align:center}
.sec-head.left{margin-left:0;text-align:left}
.sec-head h2{font-size:clamp(26px,3.2vw,40px);margin-bottom:14px;letter-spacing:-0.03em}
.sec-head p{color:var(--text-2);font-size:15.5px}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:168px 0 80px}
.page-hero .glow{position:absolute;top:-200px;left:50%;transform:translateX(-50%);width:820px;height:480px;background:radial-gradient(50% 50% at 50% 50%,rgba(94,106,210,.15),transparent 70%);pointer-events:none}
.page-hero .grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:72px 72px;mask-image:radial-gradient(70% 60% at 50% 0%,#000 30%,transparent 100%);-webkit-mask-image:radial-gradient(70% 60% at 50% 0%,#000 30%,transparent 100%);pointer-events:none}
.page-hero .crumb{font-family:var(--mono);font-size:11.5px;color:var(--muted);margin-bottom:18px}
.page-hero .crumb a{color:var(--text-2);transition:color var(--fast)}
.page-hero .crumb a:hover{color:var(--accent-2)}
.page-hero .crumb span{color:var(--muted)}
.page-hero h1{font-size:clamp(34px,4.8vw,56px);letter-spacing:-0.03em;margin-bottom:16px;max-width:680px}
.page-hero .lead{color:var(--text-2);font-size:16.5px;max-width:580px}

/* ---------- generic card ---------- */
.card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-md);transition:transform var(--norm) var(--ease),border-color var(--norm),background var(--norm)}
.card:hover{transform:translateY(-4px);border-color:var(--line-accent);background:var(--bg-3)}

/* ---------- tables (spec sheets) ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:13.5px}
.spec-table th,.spec-table td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line)}
.spec-table th{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);background:var(--bg-3)}
.spec-table td{color:var(--text-2)}
.spec-table td b{color:var(--text);font-weight:600}
.spec-table tr:hover td{background:var(--bg-3)}
.spec-table tr:last-child td{border-bottom:none}

/* ---------- forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--text-2)}
.field label .req{color:var(--red)}
.field input,.field select,.field textarea{border:1px solid var(--line-2);border-radius:var(--r-xs);padding:12px 14px;font-size:14px;font-family:var(--font);background:var(--bg-2);color:var(--text);transition:border-color var(--fast),box-shadow var(--fast);outline:none;width:100%}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field select option{background:var(--bg-4);color:var(--text)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.field input.error,.field textarea.error{border-color:var(--red);box-shadow:0 0 0 3px rgba(255,92,92,.15)}
.field textarea{resize:vertical;min-height:96px}
.form-note{font-family:var(--mono);font-size:11px;color:var(--muted);text-align:center;margin-top:14px}
.form-note.ok{color:var(--green)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity var(--slow) var(--ease),transform var(--slow) var(--ease);transition-delay:calc(var(--d,0)*80ms)}
.reveal.in{opacity:1;transform:none}

/* ---------- to-top ---------- */
.to-top{position:fixed;right:24px;bottom:24px;z-index:200;width:44px;height:44px;border-radius:var(--r-xs);border:1px solid var(--line-2);cursor:pointer;background:var(--bg-3);color:var(--text);display:grid;place-items:center;box-shadow:var(--sh-1);opacity:0;transform:translateY(14px) scale(.92);pointer-events:none;transition:all var(--norm) var(--ease)}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{border-color:var(--accent);color:var(--accent-2)}
.to-top svg{width:18px;height:18px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);padding:30px 0}
.site-footer .inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.site-footer .copy{font-family:var(--mono);font-size:12px;color:var(--muted)}
.site-footer .links{display:flex;gap:18px;flex-wrap:wrap}
.site-footer .links a{font-size:13px;color:var(--text-2);transition:color var(--fast)}
.site-footer .links a:hover{color:var(--accent-2)}

/* ---------- responsive ---------- */
@media(max-width:880px){
  .nav{display:none}
  .hdr-inner{height:58px}
  section{padding:72px 0}
  .page-hero{padding:132px 0 56px}
}
@media(max-width:620px){
  .form-grid{grid-template-columns:1fr}
  .field.full{grid-column:1}
  .to-top{right:16px;bottom:16px}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important}
}