/* =========================================================
   Łukasz Wojciechowski — informatyksledczy.eu
   Design tokens
   ========================================================= */
:root{
  --navy-950:#081524;
  --navy-900:#0E2440;
  --navy-800:#15335C;
  --graphite-800:#2B2F36;
  --graphite-500:#5B636F;
  --paper:#F5F7FA;
  --white:#FFFFFF;
  --accent:#3164E0;
  --accent-bright:#5B8DFF;
  --accent-soft:#E3EBFC;
  --line:#E1E6ED;

  --font-display:"Source Serif 4", Georgia, "Times New Roman", serif;
  --font-body:"IBM Plex Sans", "Segoe UI", Arial, sans-serif;
  --font-mono:"IBM Plex Mono", "Courier New", monospace;

  --max-w:1180px;
  --radius:2px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.001ms!important;animation-iteration-count:1!important;transition-duration:0.001ms!important;scroll-behavior:auto!important;}
}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--graphite-800);
  background:var(--paper);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:2px;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--accent-bright);
  outline-offset:3px;
}

h1,h2,h3{
  font-family:var(--font-display);
  color:var(--navy-950);
  line-height:1.15;
  font-weight:600;
  margin:0 0 .5em;
}
h1{font-size:clamp(2rem,4.5vw,3.2rem);}
h2{font-size:clamp(1.5rem,3vw,2.2rem);}
h3{font-size:clamp(1.15rem,2vw,1.5rem);}
p{margin:0 0 1em;}

.container{max-width:var(--max-w);margin:0 auto;padding:0 24px;}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:.5em;
  margin-bottom:.9em;
}
.eyebrow::before{content:"//";color:var(--graphite-500);}

.hash-rule{
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--graphite-500);
  letter-spacing:.03em;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  opacity:.6;
  margin:2.2em 0;
  border-top:1px solid var(--line);
  padding-top:.9em;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.55em;
  font-family:var(--font-body);
  font-weight:600;
  font-size:.98rem;
  padding:.85em 1.5em;
  border-radius:var(--radius);
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:background .15s ease, color .15s ease, border-color .15s ease, transform .1s ease;
}
.btn-primary{background:var(--accent);color:var(--white);}
.btn-primary:hover{background:var(--navy-900);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.35);}
.btn-ghost:hover{border-color:var(--white);}
.btn-outline{background:transparent;color:var(--navy-950);border-color:var(--line);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);}

/* Skip link */
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--navy-950);color:var(--white);
  padding:.8em 1.2em;z-index:1000;
}
.skip-link:focus{left:12px;top:12px;}

/* Header */
.site-header{
  background:var(--navy-950);
  position:sticky;top:0;z-index:100;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;max-width:var(--max-w);margin:0 auto;
}
.brand{
  font-family:var(--font-display);
  color:var(--white);
  font-size:1.15rem;
  text-decoration:none;
  display:flex;flex-direction:column;line-height:1.2;
}
.brand small{
  font-family:var(--font-mono);
  font-size:.68rem;
  color:var(--accent-bright);
  letter-spacing:.06em;
  text-transform:uppercase;
}
.nav-toggle{
  display:inline-flex;background:none;border:1px solid rgba(255,255,255,.3);
  border-radius:var(--radius);padding:.5em .7em;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--white);margin:4px 0;}
.main-nav{
  position:fixed;inset:0 0 0 auto;width:min(320px,86vw);
  background:var(--navy-950);
  transform:translateX(100%);
  transition:transform .25s ease;
  padding:90px 28px 28px;
  overflow-y:auto;
}
.main-nav.is-open{transform:translateX(0);}
.main-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.main-nav a{
  display:block;color:rgba(255,255,255,.88);text-decoration:none;
  padding:.85em .2em;border-bottom:1px solid rgba(255,255,255,.08);
  font-size:1.02rem;
}
.main-nav a:hover,.main-nav a[aria-current="page"]{color:var(--accent-bright);}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(4,10,20,.55);
  opacity:0;pointer-events:none;transition:opacity .2s ease;z-index:90;
}
.nav-backdrop.is-open{opacity:1;pointer-events:auto;}

@media (min-width:900px){
  .nav-toggle{display:none;}
  .main-nav{
    position:static;width:auto;transform:none;background:none;padding:0;overflow:visible;
  }
  .main-nav ul{flex-direction:row;gap:22px;align-items:center;}
  .main-nav a{border-bottom:none;padding:.4em .1em;font-size:.95rem;position:relative;}
  .main-nav a::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent-bright);
    transform:scaleX(0);transition:transform .15s ease;transform-origin:left;
  }
  .main-nav a:hover::after,.main-nav a[aria-current="page"]::after{transform:scaleX(1);}
  .nav-backdrop{display:none;}
}

/* Hero */
.hero{
  background:linear-gradient(180deg,var(--navy-950),var(--navy-900));
  color:var(--white);
  padding:64px 0 72px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:radial-gradient(ellipse at top right,black,transparent 70%);
}
.hero-grid{
  position:relative;display:grid;gap:40px;
  grid-template-columns:1fr;
  align-items:center;
}
@media (min-width:940px){
  .hero-grid{grid-template-columns:1.15fr .85fr;gap:56px;}
}
.hero h1{color:var(--white);}
.hero .lede{font-size:1.1rem;color:rgba(255,255,255,.82);max-width:52ch;}
.hero-credentials{
  list-style:none;margin:1.6em 0 2em;padding:0;
  display:flex;flex-wrap:wrap;gap:10px;
}
.hero-credentials li{
  font-family:var(--font-mono);font-size:.78rem;color:var(--accent-bright);
  border:1px solid rgba(91,141,255,.35);border-radius:999px;padding:.4em .9em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

.evidence-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:6px;
  padding:26px;
  font-family:var(--font-mono);
  color:rgba(255,255,255,.85);
}
.evidence-card .ec-head{
  display:flex;justify-content:space-between;font-size:.72rem;
  color:var(--accent-bright);letter-spacing:.05em;text-transform:uppercase;
  border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:10px;margin-bottom:14px;
}
.evidence-card .ec-line{font-size:.82rem;margin:0 0 .6em;word-break:break-all;color:rgba(255,255,255,.7);}
.evidence-card .ec-line b{color:var(--white);font-weight:500;}
.hash-anim{color:var(--accent-bright);}

/* Sections */
.section{padding:64px 0;}
.section-alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:62ch;margin-bottom:2.2em;}

.grid{display:grid;gap:24px;}
.grid-3{grid-template-columns:1fr;}
.grid-2{grid-template-columns:1fr;}
@media (min-width:720px){
  .grid-3{grid-template-columns:repeat(3,1fr);}
  .grid-2{grid-template-columns:repeat(2,1fr);}
}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;
}
.card-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;margin-bottom:.9em;
  color:var(--accent);background:var(--accent-soft);border-radius:6px;
}
.card-icon svg{width:24px;height:24px;}
.section-dark .card-icon{background:rgba(91,141,255,.12);color:var(--accent-bright);}
.hero-icon-row{display:flex;gap:10px;margin-top:1.6em;color:rgba(255,255,255,.55);}
.hero-icon-row span{
  display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.15);border-radius:6px;
}
.hero-icon-row svg{width:18px;height:18px;}
.page-icon{
  display:inline-flex;width:52px;height:52px;align-items:center;justify-content:center;
  color:var(--accent);background:var(--accent-soft);border-radius:8px;margin-bottom:.8em;
}
.page-icon svg{width:28px;height:28px;}
.card .case-id{
  font-family:var(--font-mono);font-size:.72rem;color:var(--graphite-500);
  display:block;margin-bottom:.8em;letter-spacing:.04em;
}
.card h3{margin-bottom:.4em;}
.card a.card-link{display:inline-block;margin-top:.8em;font-weight:600;font-size:.92rem;}

.section-dark{background:var(--navy-950);color:rgba(255,255,255,.86);}
.section-dark h2{color:var(--white);}
.section-dark .card{background:rgba(255,255,255,.03);border-color:rgba(255,255,255,.12);color:rgba(255,255,255,.78);}
.section-dark .card h3{color:var(--white);}
.section-dark .card .case-id{color:var(--accent-bright);}

/* Footer */
.site-footer{background:var(--navy-950);color:rgba(255,255,255,.65);padding:48px 0 28px;font-size:.92rem;}
.footer-grid{display:grid;gap:28px;grid-template-columns:1fr;}
@media (min-width:760px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr;}}
.site-footer a{color:rgba(255,255,255,.75);}
.site-footer h4{color:var(--white);font-family:var(--font-body);font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:.9em;}
.site-footer ul{list-style:none;margin:0;padding:0;}
.site-footer li{margin-bottom:.55em;}
/* Cookie consent */
.cookie-consent{
  position:fixed;left:0;right:0;bottom:58px;z-index:200;
  background:var(--navy-950);color:rgba(255,255,255,.9);
  padding:16px 20px;box-shadow:0 -4px 16px rgba(0,0,0,.25);
}
.cookie-consent[hidden]{display:none;}
.cookie-consent-inner{
  max-width:var(--max-w);margin:0 auto;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.cookie-consent p{margin:0;font-size:.88rem;max-width:62ch;color:rgba(255,255,255,.8);}
.cookie-actions{display:flex;gap:10px;flex-shrink:0;}
#cookie-manage{font-size:.8rem;}
@media (min-width:900px){
  .cookie-consent{bottom:0;}
}

.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:.8rem;
  font-family:var(--font-mono);color:rgba(255,255,255,.45);
}

/* Breadcrumbs */
.breadcrumbs{font-size:.82rem;color:var(--graphite-500);margin-bottom:1.4em;font-family:var(--font-mono);}
.breadcrumbs a{color:var(--graphite-500);}
.breadcrumbs a:hover{color:var(--accent);}

/* Sticky mobile call bar */
.mobile-call-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  display:flex;gap:1px;background:var(--line);
  border-top:1px solid var(--line);
}
.mobile-call-bar a{
  flex:1;text-align:center;padding:14px 8px;font-weight:600;font-size:.92rem;
  text-decoration:none;
}
.mobile-call-bar .call{background:var(--accent);color:var(--white);}
.mobile-call-bar .msg{background:var(--navy-950);color:var(--white);}
body{padding-bottom:58px;}
@media (min-width:900px){
  .mobile-call-bar{display:none;}
  body{padding-bottom:0;}
}

/* FAQ */
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  cursor:pointer;padding:1.1em 0;font-weight:600;color:var(--navy-950);
  list-style:none;display:flex;justify-content:space-between;gap:1em;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-family:var(--font-mono);color:var(--accent);font-size:1.2rem;}
.faq-item[open] summary::after{content:"–";}
.faq-item p{padding-bottom:1.1em;color:var(--graphite-500);max-width:68ch;}
.faq-search{
  width:100%;padding:.9em 1em;border:1px solid var(--line);border-radius:var(--radius);
  font-family:var(--font-body);font-size:1rem;margin-bottom:1.6em;
}

/* Blog */
.post-card img{border-radius:var(--radius) var(--radius) 0 0;aspect-ratio:16/10;object-fit:cover;}
.post-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.post-card .post-body{padding:20px 22px 22px;}
.post-meta{font-family:var(--font-mono);font-size:.72rem;color:var(--graphite-500);letter-spacing:.03em;margin-bottom:.6em;}
.post-meta .tag{color:var(--accent);}
.post-hero-img{
  width:100%;max-width:74ch;margin:0 auto 1.8em;display:block;
  border-radius:4px;aspect-ratio:16/10;object-fit:cover;
}
article.post{max-width:74ch;margin:0 auto;}
article.post h2{margin-top:1.2em;}
article.post h3{margin-top:1.4em;color:var(--navy-950);}
article.post ul,article.post ol{margin:0 0 1.2em;padding-left:1.4em;}
article.post ul li,article.post ol li{margin-bottom:.45em;}
article.post ol{counter-reset:none;}
article.post .post-meta{margin-bottom:1.8em;}
.related-posts{margin-top:3em;}

/* Forms */
.form-field{margin-bottom:1.2em;}
.form-field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:.4em;}
.form-field input,.form-field textarea,.form-field select{
  width:100%;padding:.8em .9em;border:1px solid var(--line);border-radius:var(--radius);
  font-family:var(--font-body);font-size:1rem;background:var(--white);
}
.form-field textarea{min-height:140px;resize:vertical;}
.consent{display:flex;gap:.6em;align-items:flex-start;font-size:.88rem;color:var(--graphite-500);}
.contact-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:900px){.contact-grid{grid-template-columns:1fr 1fr;}}
.contact-info dt{font-family:var(--font-mono);font-size:.72rem;color:var(--graphite-500);text-transform:uppercase;letter-spacing:.05em;margin-top:1.2em;}
.contact-info dd{margin:.3em 0 0;font-size:1.05rem;}
.map-embed{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:1.6em;}
.map-embed iframe{width:100%;height:280px;border:0;display:block;}

.why-list{list-style:none;margin:0;padding:0;display:grid;gap:14px;}
.why-list li{
  display:flex;gap:.8em;align-items:flex-start;color:rgba(255,255,255,.82);
}
.why-list li::before{content:"✓";color:var(--accent-bright);font-weight:700;}

.scope-list{list-style:none;margin:0;padding:0;columns:1;gap:0;}
@media (min-width:640px){.scope-list{columns:2;column-gap:28px;}}
.scope-list li{
  break-inside:avoid;padding:.55em 0;border-bottom:1px solid var(--line);
  display:flex;gap:.7em;
}
.scope-list li::before{content:"›";color:var(--accent);font-weight:700;}

.visually-hidden{
  position:absolute!important;width:1px;height:1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;padding:0;margin:-1px;
}