/* INSTALMAX – wizytówka. Bez zewnętrznych czcionek i skryptów. */
:root{
  --ink:#0f1622; --ink-2:#172131; --ink-3:#22304a;
  --paper:#f5f3ee; --paper-2:#ebe7de;
  --text:#1b2330; --muted:#5b6575;
  --amber:#f5a623; --amber-d:#c97f00;
  --line:rgba(15,22,34,.12);
  --r:10px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font:17px/1.6 var(--font);color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{line-height:1.15;margin:0}
.wrap{width:min(1120px,100% - 40px);margin-inline:auto}

.skip{position:absolute;left:-9999px;top:0;background:var(--amber);color:var(--ink);padding:10px 16px;z-index:100}
.skip:focus{left:10px;top:10px}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px}

/* ---- header ---- */
.top{position:sticky;top:0;z-index:20;background:rgba(15,22,34,.94);backdrop-filter:blur(8px);color:#fff;border-bottom:1px solid rgba(255,255,255,.06)}
.top__in{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:600;letter-spacing:.14em;font-size:15px}
.logo b{color:var(--amber);font-weight:800}
.logo__mark{width:22px;height:22px;border:3px solid var(--amber);border-radius:4px;position:relative}
.logo__mark::after{content:"";position:absolute;inset:4px;background:var(--amber);border-radius:1px}
.menu{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.menu a{display:block;padding:8px 12px;border-radius:6px;text-decoration:none;font-size:15px;color:#c9d1dd}
.menu a:hover{color:#fff;background:rgba(255,255,255,.06)}
.menu__cta{background:var(--amber);color:var(--ink)!important;font-weight:600}
.menu__cta:hover{background:#ffb93f!important}
@media (max-width:640px){
  .menu li:not(:last-child){display:none}
}

/* ---- hero ---- */
.hero{background:
  linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px) 0 0/48px 48px,
  linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px) 0 0/48px 48px,
  radial-gradient(1000px 500px at 85% 10%,#24365a 0,transparent 60%),
  var(--ink);color:#fff;padding:clamp(72px,12vw,140px) 0 clamp(64px,10vw,120px);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:repeating-linear-gradient(90deg,var(--amber) 0 40px,transparent 40px 56px)}
.eyebrow{font:500 13px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--amber);margin:0 0 20px}
.hero h1{font-size:clamp(38px,6.4vw,76px);font-weight:800;letter-spacing:-.02em;max-width:14ch}
.lead{font-size:clamp(18px,2vw,21px);color:#b7c1cf;max-width:52ch;margin:24px 0 36px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:14px 22px;border-radius:8px;text-decoration:none;font-weight:600;font-size:16px;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--amber);color:var(--ink)}
.btn--primary:hover{background:#ffb93f}
.btn--ghost{border:1px solid rgba(255,255,255,.25);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.06)}

/* ---- sections ---- */
.section{padding:clamp(64px,9vw,110px) 0}
.section--alt{background:var(--paper-2)}
.section--dark{background:var(--ink);color:#fff}
.h2{font-size:clamp(28px,3.6vw,42px);font-weight:800;letter-spacing:-.01em;margin-bottom:36px;display:flex;align-items:baseline;gap:16px}
.h2 span{font:600 14px/1 var(--mono);color:var(--amber-d);border:1px solid currentColor;padding:6px 8px;border-radius:4px;transform:translateY(-6px)}
.section--dark .h2 span{color:var(--amber)}
.sub{color:var(--muted);margin:-20px 0 28px}

/* ---- services ---- */
.cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;position:relative;transition:border-color .2s,box-shadow .2s}
.card:hover{border-color:rgba(245,166,35,.6);box-shadow:0 10px 30px -18px rgba(15,22,34,.4)}
.card__ic{width:40px;height:40px;fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;background:rgba(245,166,35,.18);border-radius:8px;padding:8px;margin-bottom:18px}
.card h3{font-size:20px;margin-bottom:10px}
.card p{margin:0;color:var(--muted);font-size:16px}

/* ---- about ---- */
.about{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(32px,6vw,80px);align-items:start}
.about p{max-width:60ch}
.facts{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.facts li{background:var(--ink);color:#fff;border-radius:var(--r);padding:22px 24px;display:flex;align-items:center;gap:18px}
.facts b{font-size:34px;font-weight:800;color:var(--amber);min-width:3.2ch}
.facts span{color:#b7c1cf;font-size:15px;line-height:1.4}
@media (max-width:820px){.about{grid-template-columns:1fr}}

/* ---- gallery ---- */
.gallery{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.gallery a{display:block;position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3;background:var(--ink-2)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.gallery a:hover img{transform:scale(1.04)}
.gallery span{position:absolute;left:0;right:0;bottom:0;padding:28px 14px 12px;color:#fff;font-size:14px;font-weight:600;background:linear-gradient(transparent,rgba(10,14,22,.85))}

/* lightbox – CSS :target */
.lb{position:fixed;inset:0;z-index:50;display:none;place-items:center;padding:24px}
.lb:target{display:grid}
.lb__bg{position:absolute;inset:0;background:rgba(8,11,18,.92);cursor:zoom-out}
.lb figure{position:relative;margin:0;max-width:min(1100px,100%);pointer-events:none}
.lb figure img{max-height:82vh;width:auto;margin:auto;border-radius:6px;box-shadow:0 30px 80px -20px #000}
.lb figcaption{color:#cfd6e0;text-align:center;margin-top:12px;font-size:15px}
.lb__x,.lb__nav{position:absolute;color:#fff;text-decoration:none;display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.08);font-size:30px;line-height:1}
.lb__x:hover,.lb__nav:hover{background:var(--amber);color:var(--ink)}
.lb__x{top:16px;right:16px}
.lb__prev{left:16px;top:50%;transform:translateY(-50%)}
.lb__next{right:16px;top:50%;transform:translateY(-50%)}

/* ---- contact ---- */
.contact{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-bottom:36px}
.contact__item{display:block;text-decoration:none;background:var(--ink-2);border:1px solid rgba(255,255,255,.08);border-radius:var(--r);padding:22px 24px}
a.contact__item:hover{border-color:var(--amber)}
.contact small{display:block;font:500 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-bottom:10px}
.contact strong{font-size:19px;font-weight:600;word-break:break-word}
.company{font-style:normal;color:#9aa5b5;font-size:15px;line-height:1.8;border-top:1px solid rgba(255,255,255,.08);padding-top:24px}
.company b{color:#fff}

/* ---- footer ---- */
.foot{background:#0a0f18;color:#7d8899;font-size:13px;padding:22px 0}
.foot__in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px}

@media print{.top,.lb,.hero::after{display:none}.hero,.section--dark{background:#fff;color:#000}}
.hero--full{min-height:100vh;display:flex;align-items:center}

/* ---- logo ---- */
.logo__img{height:44px;width:auto}
.hero__in{display:grid;grid-template-columns:1.35fr 1fr;align-items:center;gap:clamp(32px,6vw,80px)}
.hero__logo{width:100%;max-width:420px;justify-self:end;opacity:.95}
@media (max-width:860px){
  .hero__in{grid-template-columns:1fr}
  .hero__logo{order:-1;justify-self:start;max-width:200px}
}
.contact{grid-template-columns:repeat(3,1fr)}
@media (max-width:820px){.contact{grid-template-columns:1fr}}
.card--wide{grid-column:1/-1;display:flex;gap:24px;align-items:flex-start}
.card--wide .card__ic{flex:none;margin:0}
.card--wide p{max-width:80ch}
@media (max-width:640px){.card--wide{flex-direction:column;gap:0}.card--wide .card__ic{margin-bottom:18px}}