/* ============================================================
   SIZEBOX — wspólny arkusz stylów
   Styl: industrialny / nowoczesny
   ============================================================ */

:root{
  --ink:#15130f;
  --ink-2:#211e18;
  --paper:#f5f1ea;
  --paper-2:#ece5d8;
  --kraft:#c79a5f;
  --kraft-dark:#a87b40;
  --amber:#e2731b;
  --amber-dark:#c25f10;
  --line:rgba(21,19,15,.14);
  --line-light:rgba(255,255,255,.14);
  --muted:#6b6457;
  --shadow:0 18px 50px rgba(21,19,15,.16);
  --maxw:1200px;
  --r:4px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,.display{
  font-family:'Space Grotesk','Inter',sans-serif;
  font-weight:600;
  line-height:1.08;
  letter-spacing:-.02em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.eyebrow{
  font-family:'Space Grotesk',sans-serif;
  text-transform:uppercase;
  letter-spacing:.28em;
  font-size:12px;
  font-weight:600;
  color:var(--amber);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--amber)}
.eyebrow.light{color:var(--kraft)}
.eyebrow.light::before{background:var(--kraft)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:'Space Grotesk',sans-serif;font-weight:600;
  font-size:15px;letter-spacing:.01em;
  padding:15px 28px;border-radius:var(--r);
  border:2px solid transparent;cursor:pointer;
  transition:transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--amber);color:#fff}
.btn-primary:hover{background:var(--amber-dark)}
.btn-dark{background:var(--ink);color:var(--paper)}
.btn-dark:hover{background:var(--ink-2)}
.btn-ghost{border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-ghost.light{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost.light:hover{background:#fff;color:var(--ink)}
.btn .arrow{transition:transform .2s ease}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,241,234,.85);
  backdrop-filter:saturate(140%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand img{height:30px;width:auto}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{
  font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:15px;
  padding:9px 16px;border-radius:var(--r);color:var(--ink);
  transition:background .15s ease,color .15s ease;
}
.nav-links a:hover{background:var(--paper-2)}
.nav-links a.active{color:var(--amber)}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:26px;height:2px;background:var(--ink);margin:5px 0;transition:.25s}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:var(--paper);overflow:hidden}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media video,.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(21,19,15,.92) 0%,rgba(21,19,15,.7) 42%,rgba(21,19,15,.25) 100%);
}
.hero-inner{position:relative;z-index:1;padding:118px 0 110px;max-width:760px}
.hero h1{font-size:clamp(2.6rem,6vw,4.6rem);margin:22px 0 0}
.hero h1 .hl{color:var(--kraft)}
.hero p.lead{font-size:clamp(1.05rem,1.6vw,1.3rem);color:#d9d2c4;margin-top:24px;max-width:600px}
.hero-actions{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap}
.hero-stats{
  position:relative;z-index:1;display:flex;gap:46px;flex-wrap:wrap;
  border-top:1px solid var(--line-light);padding:30px 0 46px;
}
.hero-stats .stat .n{font-family:'Space Grotesk',sans-serif;font-size:2.1rem;font-weight:600;color:#fff}
.hero-stats .stat .l{font-size:13px;color:#b8b0a0;letter-spacing:.04em}

/* ---------- Sections ---------- */
section{padding:92px 0}
.section-head{max-width:680px;margin-bottom:54px}
.section-head h2{font-size:clamp(2rem,3.6vw,3rem);margin:18px 0 0}
.section-head p{color:var(--muted);font-size:1.08rem;margin-top:18px}
.section-dark{background:var(--ink);color:var(--paper)}
.section-dark .section-head p{color:#c2bbac}
.section-kraft{background:var(--paper-2)}

/* ---------- Feature grid ---------- */
.grid{display:grid;gap:24px}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:34px 30px;transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .ico{
  width:50px;height:50px;border-radius:var(--r);background:var(--ink);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
}
.card .ico svg{width:24px;height:24px;stroke:var(--kraft);fill:none;stroke-width:1.7}
.card h3{font-size:1.3rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.98rem}

/* ---------- Split (image + text) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split.rev .split-media{order:2}
.split-media img,.split-media video{
  width:100%;border-radius:var(--r);box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.split-text h2{font-size:clamp(1.8rem,3vw,2.6rem);margin:16px 0 18px}
.split-text p{color:var(--muted);margin-bottom:16px}
.tick-list{list-style:none;margin-top:22px;display:grid;gap:13px}
.tick-list li{display:flex;gap:13px;align-items:flex-start;font-size:1rem}
.tick-list li::before{
  content:"";flex:0 0 22px;height:22px;margin-top:2px;border-radius:3px;
  background:var(--amber);
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/></svg>") center/16px no-repeat;
          mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/></svg>") center/16px no-repeat;
}
.section-dark .tick-list li::before{background:var(--kraft)}

/* ---------- Branże / chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.chip{
  font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:.95rem;
  border:1px solid var(--line-light);color:var(--paper);
  padding:11px 20px;border-radius:40px;
}
.section-kraft .chip,.bands .chip{border-color:var(--line);color:var(--ink)}

/* ---------- Process steps ---------- */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{border-top:3px solid var(--amber);padding-top:22px}
.step .num{font-family:'Space Grotesk',sans-serif;font-size:13px;letter-spacing:.2em;color:var(--amber);font-weight:600}
.step h4{font-size:1.18rem;margin:10px 0 8px}
.step p{color:var(--muted);font-size:.95rem}

/* ---------- Product / size cards (oferta) ---------- */
.size-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.size-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;
}
.size-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.size-card .ph{background:var(--paper-2);padding:26px;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center}
.size-card .ph img{max-height:100%;width:auto;mix-blend-mode:multiply}
.size-card .meta{padding:18px 22px;display:flex;justify-content:space-between;align-items:center}
.size-card .meta .dim{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1.1rem}
.size-card .meta .tag{font-size:12px;color:var(--muted);letter-spacing:.05em;text-transform:uppercase}

/* ---------- Video block ---------- */
.video-block{background:var(--ink);color:var(--paper)}
.video-frame{
  position:relative;border-radius:var(--r);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--line-light);
  aspect-ratio:16/9;background:#000;
}
.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
/* YouTube facade (miniatura + przycisk play, ładuje film po kliknięciu) */
.yt-facade{cursor:pointer}
.yt-facade .yt-thumb{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s ease,filter .3s ease}
.yt-facade::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.45));transition:background .3s ease}
.yt-facade:hover .yt-thumb{transform:scale(1.04)}
.yt-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:90px;z-index:2;transition:transform .2s ease}
.yt-play svg{width:100%;height:auto;display:block;filter:drop-shadow(0 6px 16px rgba(0,0,0,.4))}
.yt-play .yt-bg{fill:#ff0000;transition:fill .2s ease}
.yt-facade:hover .yt-play{transform:translate(-50%,-50%) scale(1.08)}
.yt-facade:hover .yt-play .yt-bg{fill:#e2731b}
.yt-label{position:absolute;left:22px;bottom:18px;z-index:2;color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1.05rem;text-shadow:0 2px 10px rgba(0,0,0,.6)}
.yt-facade:focus-visible{outline:3px solid var(--amber);outline-offset:3px}

/* ---------- Spec table ---------- */
.spec{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.spec th,.spec td{text-align:left;padding:17px 22px;border-bottom:1px solid var(--line);font-size:.98rem;color:var(--ink)}
.spec th{font-family:'Space Grotesk',sans-serif;background:var(--paper-2);width:40%;font-weight:600}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}

/* ---------- CTA band ---------- */
.cta-band{background:var(--amber);color:#fff;padding:74px 0}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.8rem,3vw,2.6rem);max-width:640px}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.9)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.field{margin-bottom:20px}
.field label{display:block;font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:.9rem;margin-bottom:8px;letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;padding:14px 16px;font-size:1rem;font-family:inherit;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:var(--r);transition:border-color .15s ease,box-shadow .15s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--amber);box-shadow:0 0 0 3px rgba(226,115,27,.16);
}
.field textarea{resize:vertical;min-height:140px}
.form-note{font-size:.85rem;color:var(--muted);margin-top:6px}
.form-msg{display:none;margin-top:18px;padding:16px 18px;border-radius:var(--r);background:#e7f3e9;border:1px solid #bcdcc2;color:#1f6b32;font-size:.95rem}
.info-card{background:var(--ink);color:var(--paper);border-radius:var(--r);padding:36px 34px}
.info-card h3{font-size:1.3rem;margin-bottom:6px}
.info-row{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line-light)}
.info-row:last-child{border-bottom:0;padding-bottom:0}
.info-row .ic{flex:0 0 22px;margin-top:3px}
.info-row .ic svg{width:22px;height:22px;stroke:var(--kraft);fill:none;stroke-width:1.6}
.info-row .k{font-family:'Space Grotesk',sans-serif;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--kraft);margin-bottom:3px}
.info-row .v{color:#e7e1d4;font-size:1rem}
.info-row a.v:hover{color:#fff;text-decoration:underline}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#cfc8ba;padding:64px 0 30px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line-light)}
.site-footer img.flogo{height:26px;filter:invert(1) brightness(2);margin-bottom:16px}
.site-footer p{font-size:.95rem;max-width:330px}
.fcol h4{font-family:'Space Grotesk',sans-serif;color:#fff;font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:16px}
.fcol a,.fcol .li{display:block;font-size:.95rem;margin-bottom:11px;color:#cfc8ba}
.fcol a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:24px;font-size:.85rem;color:#9b9486}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .cols-3,.size-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .split,.contact-grid,.footer-top{grid-template-columns:1fr;gap:36px}
  .split.rev .split-media{order:0}
  .nav-links{
    position:absolute;top:76px;left:0;right:0;background:var(--paper);
    flex-direction:column;align-items:stretch;gap:0;padding:10px 18px 18px;
    border-bottom:1px solid var(--line);display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 8px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav-cta{margin:12px 0 0}
  .nav-toggle{display:block}
}
@media (max-width:560px){
  .cols-3,.size-grid,.steps{grid-template-columns:1fr}
  section{padding:64px 0}
  .hero-inner{padding:78px 0 70px}
  .hero-stats{gap:28px}
  .wrap{padding:0 20px}
}