/* =========================================================
   GAMPP Building & Sound - piotro.info
   Paleta: grafit budowlany + ciepły amber + ciepła biel
   ========================================================= */

/* Fonty hostowane lokalnie - bez zadan do obcych serwerow.
   Subset: alfabet lacinski + polskie znaki. Licencja OFL. */
@font-face{
  font-family:"Barlow Condensed";font-style:normal;font-weight:600;font-display:swap;
  src:url("/assets/fonty/BarlowCondensed-600.woff2") format("woff2");
}
@font-face{
  font-family:"Barlow Condensed";font-style:normal;font-weight:700;font-display:swap;
  src:url("/assets/fonty/BarlowCondensed-700.woff2") format("woff2");
}
@font-face{
  font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;
  src:url("/assets/fonty/Inter-400.woff2") format("woff2");
}
@font-face{
  font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;
  src:url("/assets/fonty/Inter-600.woff2") format("woff2");
}

:root{
  /* kolory */
  --graphite-900:#0f1116;
  --graphite-800:#14161c;
  --graphite-700:#1c1f27;
  --graphite-600:#272b35;
  --graphite-500:#3a3f4c;

  --amber-500:#f5a524;
  --amber-400:#ffb84d;
  --amber-600:#d4881a;

  --paper:#f7f5f2;
  --paper-alt:#efebe5;
  --line:#e2ddd5;

  --ink:#1a1c22;
  --ink-soft:#565b66;
  --ink-invert:#f4f2ef;
  --ink-invert-soft:#a2a8b4;

  /* typografia */
  --font-display:"Barlow Condensed","Oswald","Arial Narrow",system-ui,sans-serif;
  --font-body:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;

  /* metryka */
  --wrap:1160px;
  --gutter:24px;
  --radius:14px;
  --radius-sm:9px;
  --header-h:72px;

  --shadow-sm:0 1px 2px rgba(15,17,22,.06),0 4px 12px rgba(15,17,22,.05);
  --shadow-md:0 8px 30px rgba(15,17,22,.10);

  --plus:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px)}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--font-display);font-weight:700;line-height:1.06;letter-spacing:.005em;margin:0}
p{margin:0 0 1em}
ul,ol,dl,dd{margin:0;padding:0}
li{list-style:none}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.accent{color:var(--amber-500)}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--amber-500);color:var(--graphite-900);
  padding:12px 18px;border-radius:0 0 var(--radius-sm) 0;font-weight:600;
}
.skip-link:focus{left:0}

:where(a,button,[tabindex]):focus-visible{
  outline:2px solid var(--amber-500);outline-offset:3px;border-radius:4px;
}

/* ---------- przyciski ---------- */
.btn{
  --btn-bg:var(--amber-500);--btn-fg:var(--graphite-900);
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  background:var(--btn-bg);color:var(--btn-fg);
  font-family:var(--font-body);font-weight:600;font-size:16px;
  text-decoration:none;white-space:nowrap;cursor:pointer;
  padding:14px 26px;border:1px solid transparent;border-radius:var(--radius-sm);
  transition:transform .15s ease,background .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn svg{width:17px;height:17px;fill:currentColor}
.btn-accent:hover{background:var(--amber-400);box-shadow:0 8px 20px rgba(245,165,36,.28)}
.btn-ghost{background:transparent;color:var(--ink-invert);border-color:rgba(244,242,239,.28)}
.btn-ghost:hover{border-color:var(--amber-500);color:var(--amber-500);background:rgba(245,165,36,.06)}
.btn-sm{padding:10px 18px;font-size:15px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(20,22,28,0);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  background:rgba(15,17,22,.94);
  border-bottom-color:rgba(255,255,255,.07);
  box-shadow:0 6px 24px rgba(0,0,0,.28);
}
.header-inner{
  min-height:var(--header-h);
  display:flex;align-items:center;gap:20px;
}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink-invert);margin-right:auto}
.brand-mark{
  width:38px;height:38px;flex:none;display:grid;place-items:center;
  background:var(--amber-500);color:var(--graphite-900);
  border-radius:9px;
}
.brand-mark svg{width:24px;height:24px}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-family:var(--font-display);font-size:23px;letter-spacing:.06em}
.brand-text small{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-invert-soft)}

.nav{display:flex;gap:30px}
.nav a{
  position:relative;text-decoration:none;font-size:15px;font-weight:500;
  color:var(--ink-invert-soft);padding:6px 0;transition:color .18s ease;
}
.nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--amber-500);transition:right .22s ease;
}
.nav a:hover{color:var(--ink-invert)}
.nav a:hover::after{right:0}

.header-cta{display:flex;align-items:center;gap:12px}

.nav-toggle{
  display:none;width:42px;height:42px;padding:0;
  background:transparent;border:1px solid rgba(244,242,239,.24);border-radius:9px;
  cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:19px;height:2px;background:var(--ink-invert);transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;margin-top:calc(var(--header-h) * -1);background:var(--graphite-800);color:var(--ink-invert);overflow:hidden}
.hero-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 78% 8%, rgba(245,165,36,.20) 0%, rgba(245,165,36,0) 55%),
    linear-gradient(180deg,#181b22 0%,#14161c 62%,#0f1116 100%);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(90% 70% at 50% 30%,#000 0%,transparent 78%);
          mask-image:radial-gradient(90% 70% at 50% 30%,#000 0%,transparent 78%);
}
.hero-inner{position:relative;padding-top:calc(var(--header-h) + 96px);padding-bottom:104px;max-width:960px}
.eyebrow{
  font-size:12.5px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  color:var(--amber-500);margin:0 0 18px;
}
.hero h1{font-size:clamp(42px,7vw,84px);margin-bottom:24px;letter-spacing:-.005em}
.lead{font-size:clamp(17px,2vw,20px);color:#c9cdd6;max-width:62ch;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:64px}

.hero-facts{display:flex;flex-wrap:wrap;gap:14px 56px;padding-top:30px;border-top:1px solid rgba(255,255,255,.1)}
.hero-facts li{display:flex;flex-direction:column}
.hero-facts strong{font-family:var(--font-display);font-size:26px;letter-spacing:.02em}
.hero-facts span{font-size:14px;color:var(--ink-invert-soft)}

/* ---------- sekcje ---------- */
.section{padding:clamp(72px,9vw,116px) 0}
.section-head{max-width:660px;margin-bottom:52px}
.section-head h2{font-size:clamp(32px,4.4vw,50px);margin-bottom:14px}
.section-sub{color:var(--ink-soft);font-size:18px;margin:0}

.section-dark{background:var(--graphite-800);color:var(--ink-invert)}
.section-dark .section-sub{color:var(--ink-invert-soft)}

/* ---------- karty usług ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(288px,1fr));gap:20px}
.card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px 26px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;border-radius:var(--radius) 0 0 var(--radius);
  background:var(--amber-500);transform:scaleY(0);transform-origin:top;transition:transform .25s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#d8d2c8}
.card:hover::before{transform:scaleY(1)}
.card-icon{
  width:46px;height:46px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(245,165,36,.13);border-radius:11px;
}
.card-icon svg{width:23px;height:23px;fill:none;stroke:var(--amber-600);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:25px;margin-bottom:9px}
.card p{color:var(--ink-soft);font-size:15.5px;margin-bottom:16px}
.pkd{
  display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.09em;
  color:var(--ink-soft);background:var(--paper-alt);border-radius:100px;padding:4px 11px;
}
.card-cta{background:var(--graphite-800);border-color:var(--graphite-800);color:var(--ink-invert);display:flex;flex-direction:column;align-items:flex-start;gap:4px}
.card-cta::before{display:none}
.card-cta h3{color:#fff}
.card-cta p{color:var(--ink-invert-soft)}
.card-cta .btn{flex:none}
.card-cta:hover{border-color:var(--amber-500);transform:none}

/* od trzech kolumn w gore karta CTA staje sie pasem na cala szerokosc */
@media (min-width:960px){
  .card-cta{
    grid-column:1 / -1;
    flex-direction:row;align-items:center;justify-content:space-between;
    gap:40px;padding:30px 34px;
  }
  .card-cta-text{max-width:64ch}
  .card-cta p{margin-bottom:0}
}

/* ---------- kroki ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:20px}
.steps li{
  background:var(--graphite-700);border:1px solid rgba(255,255,255,.07);
  border-radius:var(--radius);padding:28px 26px;
  transition:border-color .22s ease,transform .22s ease;
}
.steps li:hover{border-color:rgba(245,165,36,.5);transform:translateY(-3px)}
.step-no{
  display:block;font-family:var(--font-display);font-size:38px;line-height:1;
  color:var(--amber-500);margin-bottom:14px;
}
.steps h3{font-size:23px;margin-bottom:8px}
.steps p{color:var(--ink-invert-soft);font-size:15.5px;margin:0}

/* ---------- o firmie ---------- */
.split{display:grid;grid-template-columns:1.35fr .9fr;gap:56px;align-items:start}
.split-text h2{font-size:clamp(32px,4.4vw,50px);margin-bottom:20px}
.split-text p{color:var(--ink-soft)}
.checks{margin-top:26px;display:grid;gap:12px}
.checks li{position:relative;padding-left:32px;font-weight:500}
.checks li::before{
  content:"";position:absolute;left:0;top:5px;width:19px;height:19px;border-radius:5px;
  background:var(--amber-500) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230f1116' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/12px no-repeat;
}
.split-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 30px;box-shadow:var(--shadow-sm);position:sticky;top:calc(var(--header-h) + 24px);
}
.split-card h3{font-size:22px;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.split-card dt{font-size:12px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-soft);margin-top:18px}
.split-card dt:first-of-type{margin-top:0}
.split-card dd{font-size:16px;font-weight:500;margin-top:3px}

/* ---------- kontakt ---------- */
.section-contact{background:var(--paper-alt);border-top:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:20px}
.contact-tile{
  display:block;text-decoration:none;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:30px 28px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
a.contact-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--amber-500)}
.contact-ico{width:44px;height:44px;display:grid;place-items:center;margin-bottom:16px;background:var(--graphite-800);border-radius:11px}
.contact-ico svg{width:21px;height:21px;fill:none;stroke:var(--amber-500);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.contact-label{display:block;font-size:12px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:6px}
.contact-tile strong{font-family:var(--font-display);font-size:26px;line-height:1.2;letter-spacing:.01em}

/* ---------- stopka ---------- */
.site-footer{background:var(--graphite-900);color:var(--ink-invert-soft);padding:44px 0}
.footer-inner{display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-brand strong{display:block;color:var(--ink-invert);font-size:15px}
.footer-brand span{font-size:13.5px;line-height:1.5}
.footer-legal{margin:0;font-size:13.5px}

/* ---------- animacja wejścia ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- responsywność ---------- */
@media (max-width:900px){
  .split{grid-template-columns:1fr;gap:36px}
  .split-card{position:static}
}

@media (max-width:820px){
  .nav{
    position:fixed;inset:var(--header-h) 0 auto 0;
    flex-direction:column;gap:0;
    background:rgba(15,17,22,.98);
    backdrop-filter:blur(12px);
    border-bottom:1px solid rgba(255,255,255,.08);
    padding:8px var(--gutter) 20px;
    transform:translateY(-120%);opacity:0;pointer-events:none;
    transition:transform .28s ease,opacity .2s ease;
  }
  .nav.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav a{padding:15px 0;font-size:17px;border-bottom:1px solid rgba(255,255,255,.07)}
  .nav a::after{display:none}
  .nav-toggle{display:flex}
  .hero-inner{padding-top:calc(var(--header-h) + 64px);padding-bottom:76px}
  .hero-actions{margin-bottom:48px}
  .hero-facts{gap:22px 40px}
}

@media (max-width:560px){
  body{font-size:16px}
  :root{--gutter:20px}
  .brand-text small{display:none}
  .header-cta .btn-label{display:none}
  .header-cta .btn{padding-inline:14px}
  .hero-facts{flex-direction:column;gap:16px}
  .btn{width:100%}
  .header-cta .btn{width:auto}
  .card-cta .btn{width:auto}
  .footer-inner{flex-direction:column;align-items:flex-start}
}

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

@media print{
  .site-header,.hero-actions,.nav-toggle{display:none}
  body{background:#fff;color:#000}
}


/* ---------- FAQ ---------- */
.section-faq{background:var(--paper)}
.faq{display:grid;gap:12px;max-width:820px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#d8d2c8;box-shadow:var(--shadow-md)}
.faq-item summary{
  cursor:pointer;list-style:none;
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 24px;
  font-family:var(--font-display);font-size:22px;font-weight:700;line-height:1.2;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:none;margin-left:auto;margin-top:3px;
  width:15px;height:15px;
  background:var(--amber-500);
  -webkit-mask:var(--plus) center/contain no-repeat;
          mask:var(--plus) center/contain no-repeat;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--amber-600)}
.faq-answer{padding:0 24px 22px;color:var(--ink-soft);max-width:68ch}
.faq-answer p{margin:0}

@media (max-width:560px){
  .faq-item summary{font-size:19px;padding:16px 18px;gap:12px}
  .faq-answer{padding:0 18px 18px}
}