/* AI-Team „mega": wspólny nagłówek i stopka dla stron z własnym CSS (AI Act, mapa wdrożenia, Dział AI, strony dziękuję).
   Wszystko zakresowane do .nav i .foot, żeby nie ruszać stylów strony. */
:root { --paper: #FAFAF7; --card: #FFFFFF; --ink: #1B1B1B; --ink-2: #45453F; --mute: #75756E; --line: #E4E2DA; --line-2: #CFCDC4; --green: #1E8A5A; --green-ink: #176B46; --green-soft: #E7F3EC; --f-head: 'Inter Tight', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif; --f-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif; --f-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace; --w: 1200px; --pad: 24px; --r: 6px; --nav-h: 64px; }
.nav .wrap, .foot .wrap { max-width: var(--w); margin: 0 auto; padding: 0 var(--pad); width: auto; }
.nav .btn, .foot .btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-family: var(--f-head); font-weight: 600; font-size: 14px; letter-spacing: -0.01em; padding: 10px 14px; border-radius: var(--r); text-decoration: none; border: 1px solid var(--ink); background: var(--ink); color: #fff; line-height: 1.1; cursor: pointer; box-shadow: none; transition: background .15s, transform .15s; }
.nav .btn:hover { background: #000; transform: translateY(-1px); }
.foot .small { font-size: 14px; line-height: 1.55; }
.foot .ai-note { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.03em; }
.nav, .foot { font-family: var(--f-body); font-size: 15px; line-height: 1.5; box-sizing: border-box; }
.nav *, .foot * { box-sizing: border-box; }
.foot h4 { margin: 0 0 14px; }
.foot p { margin: 0; }
/* nawigacja */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(250, 250, 247, .92); backdrop-filter: saturate(140%) blur(10px); -webkit-backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.nav.solid { border-bottom-color: var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--f-head); font-weight: 600; font-size: 18px; letter-spacing: -0.02em; }
.brand img { width: 34px; height: 34px; border-radius: 50%; }
.brand .tag { font-family: var(--f-mono); font-weight: 400; font-size: 11px; letter-spacing: 0.08em; color: var(--mute); text-transform: uppercase; margin-left: 6px; }
.menu { display: flex; align-items: center; gap: 4px; }
.menu a { text-decoration: none; font-size: 15px; font-weight: 500; color: var(--ink-2); padding: 8px 12px; border-radius: var(--r); transition: color .15s, background .15s; }
.menu a:hover { color: var(--ink); background: #fff; }
.menu a[aria-current="page"] { color: var(--ink); }
.nav .btn { margin-left: 8px; }
.menu .btn { display: none; }
.burger { display: none; width: 44px; height: 44px; border: 1px solid var(--line-2); background: #fff; border-radius: var(--r); cursor: pointer; padding: 0; position: relative; }
.burger span { position: absolute; left: 12px; right: 12px; height: 2px; background: var(--ink); transition: transform .2s, opacity .2s; }
.burger span:nth-child(1) { top: 15px; } .burger span:nth-child(2) { top: 21px; } .burger span:nth-child(3) { top: 27px; }
.nav.open .burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav.open .burger span:nth-child(2) { opacity: 0; }
.nav.open .burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
@media (max-width: 960px) {
  .menu { display: none; position: absolute; left: 0; right: 0; top: var(--nav-h); background: var(--paper); border-bottom: 1px solid var(--line); padding: 12px var(--pad) 20px; flex-direction: column; align-items: stretch; gap: 2px; }
  .nav.open .menu { display: flex; }
  .menu a { padding: 12px 8px; font-size: 17px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .menu .btn { display: inline-flex; margin: 14px 0 0; border-bottom: 0; }
  .burger { display: block; }
  .nav > .wrap > .btn { display: none; }
  .brand .tag { display: none; }
}


/* stopka */
.foot { border-top: 1px solid var(--line); padding: 56px 0 28px; background: #fff; }
.foot .cols { display: grid; grid-template-columns: 4fr 2fr 2fr 2fr 2fr; gap: 24px; }
.foot h4 { font-family: var(--f-mono); font-weight: 500; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); margin-bottom: 14px; }
.foot a { display: block; text-decoration: none; font-size: 15px; color: var(--ink-2); padding: 4px 0; }
.foot a:hover { color: var(--ink); }
.foot .brand { margin-bottom: 14px; }
.foot .small { max-width: 34ch; }
.foot .bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; color: var(--mute); }
.foot .bottom a { display: inline; font-size: 13px; padding: 0; }
.ai-note { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.03em; color: var(--mute); }
@media (max-width: 960px) { .foot .cols { grid-template-columns: 1fr 1fr; } .foot .cols > div:first-child { grid-column: 1 / -1; } }


/* logo: pierścień radaru wokół znaku */
.brand { gap: 12px; font-size: 20px; }
.brand .mark { position: relative; width: 48px; height: 48px; flex: 0 0 48px; display: grid; place-items: center; }
.brand .mark img, .brand .mark .lg { width: 44px; height: 44px; border-radius: 50%; position: relative; z-index: 1; transition: transform .35s cubic-bezier(.2,.8,.2,1); display: block; }
.brand .mark .lg text { paint-order: stroke; }
.brand .ring { position: absolute; inset: -4px; width: 56px; height: 56px; transform: rotate(-90deg); }
.brand .ring .base { fill: none; stroke: var(--line-2); stroke-width: 1.5; }
.brand .ring .arc { fill: none; stroke: var(--green); stroke-width: 2.5; stroke-linecap: round; stroke-dasharray: .22 .78; stroke-dashoffset: 0; animation: ringdraw 1.4s cubic-bezier(.2,.8,.2,1) both, ringspin 6s linear 1.4s infinite; transform-origin: 50% 50%; }
@keyframes ringdraw { from { stroke-dasharray: 0 1; } to { stroke-dasharray: .22 .78; } }
@keyframes ringspin { to { transform: rotate(360deg); } }
.brand:hover .ring .arc { animation-duration: 1.4s, 1.2s; }
.brand:hover .mark img, .brand:hover .mark .lg { transform: scale(1.08) rotate(-6deg); }
.brand .word { display: inline-flex; align-items: baseline; }
.nav .brand .word::after { content: ''; display: block; }
@media (prefers-reduced-motion: reduce) { .brand .ring .arc { animation: none; } }


/* stopka: ciemna z watermarkiem */
.foot { background: #121311; color: #D5D4CC; border-top: 0; position: relative; overflow: hidden; padding-top: 72px; }
.foot .wrap { position: relative; z-index: 1; }
.foot .wm { position: absolute; left: 50%; bottom: -0.28em; transform: translateX(-50%); font-family: var(--f-head); font-weight: 700; font-size: clamp(120px, 24vw, 380px); letter-spacing: -0.05em; line-height: 1; color: rgba(255,255,255,.035); white-space: nowrap; pointer-events: none; user-select: none; }
.foot h4 { color: #8F8E86; }
.foot a { color: #C9C8C0; }
.foot a:hover { color: #fff; }
.foot .small { color: #9C9B93; }
.foot .brand { color: #fff; }
.foot .brand .ring .base { stroke: rgba(255,255,255,.2); }
.foot .bottom { border-top-color: rgba(255,255,255,.12); color: #8F8E86; }
.foot .ai-note { color: #8F8E86; }

.nav .brand, .foot .brand { font-family: var(--f-head); font-size: 20px; font-weight: 600; letter-spacing: -0.02em; gap: 12px; color: var(--ink); }
.foot .brand { color: #fff; }
.nav .menu a { font-family: var(--f-body); font-size: 15px; font-weight: 500; color: var(--ink-2); border: 0; }