/* Neon City – making of. Ciemny motyw, kontrast WCAG AA (tekst ≥ 4.5:1, duże/UI ≥ 3:1). */
:root {
  --bg: #090c14;
  --bg-2: #0e1320;
  --surface: #131a2a;
  --line: #26314a;
  --text: #e9edf5;        /* 16.4:1 na --bg */
  --muted: #aab6cc;       /* 9.3:1 na --bg, 8.2:1 na --surface */
  --cyan: #3ce4d8;        /* 11.9:1 na --bg */
  --magenta: #ff5fd9;     /* 6.9:1 na --bg */
  --amber: #ffc857;       /* 12.0:1 na --bg */
  --ok: #6ee7a0;
  --bad: #ff7a7a;
  --radius: 10px;
  --wrap: 1180px;
  --gutter: 16px;
  --font-head: "Chakra Petch", "Segoe UI", system-ui, sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 88px; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(255, 95, 217, .10), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(60, 228, 216, .08), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 400 1.0625rem/1.65 var(--font-body);
  overflow-x: hidden;
}
img, video, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { color: #8ff6ee; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 4px; }

.skip { position: absolute; left: -9999px; top: 8px; z-index: 50; background: var(--amber); color: #111; padding: 8px 12px; border-radius: 6px; font-weight: 600; }
.skip:focus { left: 8px; }

.wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }

/* Nagłówek i nawigacja */
.site-head {
  position: sticky; top: 0; z-index: 20;
  background: rgba(9, 12, 20, .88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap { display: flex; align-items: center; gap: 16px; min-height: 60px; }
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; color: var(--text); white-space: nowrap; }
.brand b { font: 700 1.2rem/1 var(--font-head); letter-spacing: .14em; color: var(--cyan); text-shadow: 0 0 14px rgba(60, 228, 216, .45); }
.brand span { font: 500 .78rem/1 var(--font-mono); color: var(--magenta); letter-spacing: .08em; text-transform: uppercase; }
.lang { margin-left: auto; display: flex; gap: 4px; font: 600 .82rem/1 var(--font-mono); }
.lang a, .lang span { padding: 7px 9px; border-radius: 6px; border: 1px solid var(--line); text-decoration: none; }
.lang span[aria-current] { background: var(--surface); color: var(--text); border-color: var(--cyan); }

.nav { border-top: 1px solid var(--line); }
.nav ol { list-style: none; margin: 0 auto; padding: 0; display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; width: min(100% - 2 * var(--gutter), var(--wrap)); }
.nav ol::-webkit-scrollbar { display: none; }
.nav a { display: block; padding: 10px 12px; white-space: nowrap; color: var(--muted); text-decoration: none; font: 500 .9rem/1.2 var(--font-head); letter-spacing: .03em; border-bottom: 2px solid transparent; }
.nav a:hover { color: var(--text); }
.nav a[aria-current="page"] { color: var(--text); border-bottom-color: var(--magenta); }
.nav .n { font-family: var(--font-mono); color: var(--cyan); margin-right: 6px; font-size: .8rem; }

/* Typografia */
h1, h2, h3 { font-family: var(--font-head); line-height: 1.15; letter-spacing: .01em; text-wrap: balance; }
h1 { font-size: clamp(2.1rem, 1.2rem + 4vw, 4.2rem); margin: 0 0 .4em; font-weight: 700; }
h2 { font-size: clamp(1.6rem, 1.1rem + 2vw, 2.4rem); margin: 0 0 .5em; }
h3 { font-size: 1.3rem; margin: 1.6em 0 .4em; color: var(--amber); }
p { margin: 0 0 1em; max-width: 72ch; }
.lead { font-size: clamp(1.1rem, 1rem + .5vw, 1.3rem); color: var(--muted); max-width: 64ch; }
.kicker { font: 600 .8rem/1 var(--font-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--magenta); margin: 0 0 14px; }
.glow { color: var(--cyan); text-shadow: 0 0 22px rgba(60, 228, 216, .35); }
code, .mono { font-family: var(--font-mono); font-size: .9em; }

main { padding-bottom: 56px; }
.page-hero { padding: clamp(36px, 6vw, 80px) 0 clamp(20px, 3vw, 36px); }
section.block { padding: clamp(28px, 4vw, 48px) 0; border-top: 1px solid var(--line); }
.sec-num { font: 600 .85rem/1 var(--font-mono); color: var(--cyan); display: block; margin-bottom: 10px; letter-spacing: .1em; }

/* Strona główna */
.hero-home { position: relative; padding: clamp(40px, 8vw, 110px) 0 32px; }
.hero-shot { margin-top: 28px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: 0 0 0 1px rgba(60,228,216,.15), 0 20px 60px rgba(0,0,0,.5); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin: 28px 0 0; padding: 0; list-style: none; }
.stats li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stats b { display: block; font: 700 1.6rem/1.1 var(--font-head); color: var(--amber); }
.stats span { color: var(--muted); font-size: .92rem; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; list-style: none; padding: 0; margin: 20px 0 0; }
.cards a { display: block; height: 100%; padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; color: var(--text); transition: border-color .15s, transform .15s; }
.cards a:hover { border-color: var(--cyan); transform: translateY(-2px); }
.cards .n { font: 600 .8rem/1 var(--font-mono); color: var(--cyan); }
.cards h3 { margin: 8px 0 6px; color: var(--text); font-size: 1.15rem; }
.cards p { margin: 0; color: var(--muted); font-size: .95rem; }
.cards .soon { font: 500 .72rem/1 var(--font-mono); color: var(--magenta); text-transform: uppercase; letter-spacing: .1em; }

/* Spis podsekcji */
.toc { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 20px 0 0; }
.toc a { display: inline-block; padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-size: .92rem; color: var(--text); background: var(--bg-2); }
.toc a:hover { border-color: var(--cyan); }

/* Figury */
figure { margin: 0; }
.fig { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.fig > a, .fig > .media { display: block; background: #05070c; }
.fig img, .fig video { width: 100%; }
.fig figcaption { padding: 10px 14px 12px; color: var(--muted); font-size: .92rem; line-height: 1.5; }
.fig figcaption b { color: var(--text); font-weight: 600; }
.fig .tag { display: inline-block; font: 600 .7rem/1 var(--font-mono); padding: 4px 6px; border-radius: 4px; background: rgba(255, 95, 217, .14); color: var(--magenta); margin-right: 6px; letter-spacing: .06em; vertical-align: 1px; }
.fig .tag.ok { background: rgba(110, 231, 160, .14); color: var(--ok); }
.fig .tag.bad { background: rgba(255, 122, 122, .14); color: var(--bad); }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr)); gap: 16px; margin: 18px 0; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 16px; margin: 18px 0; }
.wide { margin: 18px 0; }
.split { display: grid; grid-template-columns: 1fr; gap: 20px; align-items: start; }
@media (min-width: 900px) { .split { grid-template-columns: 5fr 7fr; gap: 32px; } .split.rev { grid-template-columns: 7fr 5fr; } }

/* Lista kroków / oś paczek */
.steps { list-style: none; padding: 0; margin: 18px 0; display: grid; gap: 10px; counter-reset: s; }
.steps li { position: relative; padding: 12px 14px 12px 52px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); }
.steps li::before { counter-increment: s; content: counter(s, decimal-leading-zero); position: absolute; left: 14px; top: 13px; font: 600 .85rem/1.4 var(--font-mono); color: var(--cyan); }
.steps b { color: var(--text); }
.timeline { list-style: none; margin: 18px 0; padding: 0 0 0 18px; border-left: 2px solid var(--line); }
.timeline li { position: relative; padding: 0 0 16px 14px; }
.timeline li::before { content: ""; position: absolute; left: -25px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--magenta); }
.timeline li.now::before { background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.timeline .ver { font: 600 .85rem/1.3 var(--font-mono); color: var(--amber); }
.timeline p { margin: 2px 0 0; color: var(--muted); font-size: .95rem; }

.note { border-left: 3px solid var(--amber); background: var(--bg-2); padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; color: var(--muted); font-size: .95rem; margin: 18px 0; }
.rights { margin-top: 28px; padding: 14px 16px; border: 1px dashed var(--line); border-radius: var(--radius); font-size: .88rem; color: var(--muted); }
.rights p { margin: 0 0 .4em; max-width: none; }
.placeholder { padding: 28px; border: 1px dashed var(--line); border-radius: var(--radius); color: var(--muted); background: var(--bg-2); }
.diagram { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin: 16px 0; overflow-x: auto; }
.diagram img { min-width: 640px; margin-inline: auto; }

.pager { display: flex; justify-content: space-between; gap: 12px; margin-top: 40px; flex-wrap: wrap; }
.pager a { padding: 10px 14px; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; background: var(--surface); }

.site-foot { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: .9rem; }
.site-foot p { margin: 0 0 .4em; max-width: none; }

/* Lightbox */
dialog.lightbox { padding: 0; border: 1px solid var(--line); border-radius: var(--radius); background: #05070c; color: var(--text); max-width: min(96vw, 1800px); max-height: 94vh; }
dialog.lightbox::backdrop { background: rgba(3, 4, 8, .86); }
dialog.lightbox img { max-height: calc(94vh - 52px); width: auto; margin: 0 auto; }
dialog.lightbox .bar { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 8px 12px; font-size: .9rem; color: var(--muted); }
dialog.lightbox button { font: 600 .9rem/1 var(--font-mono); background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: 6px; padding: 8px 12px; cursor: pointer; }

/* Wybór języka (strona główna /) */
.lang-pick { min-height: 100vh; display: grid; place-items: center; text-align: center; padding: var(--gutter); }
.lang-pick .choices { display: flex; gap: 12px; justify-content: center; margin-top: 18px; flex-wrap: wrap; }
.lang-pick .choices a { padding: 14px 22px; border: 1px solid var(--cyan); border-radius: var(--radius); text-decoration: none; font: 600 1.05rem/1 var(--font-head); background: var(--surface); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}
@media (max-width: 520px) {
  .brand span { display: none; }
  body { font-size: 1rem; }
}
mark { background: rgba(255, 200, 87, .18); color: var(--amber); padding: 0 4px; border-radius: 3px; }

/* ── MO-1: nawigacja „wkrótce”, siatki, tabele, cytaty, role, suwak, wykres */
.nav small { font: 500 .65rem/1 var(--font-mono); color: var(--magenta); text-transform: uppercase; letter-spacing: .08em; margin-left: 4px; }
.grid-4 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 18px 0; }
@media (min-width: 900px) { .grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.fig.mt { margin-top: 16px; }
.lead.small { font-size: 1.12rem; color: var(--text); }

.table-wrap { overflow-x: auto; margin: 18px 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
caption { text-align: left; padding: 12px 14px 4px; color: var(--muted); font-size: .9rem; caption-side: top; }
th, td { padding: 9px 14px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { border-top: 0; color: var(--muted); font: 600 .78rem/1.3 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }
tbody th { font-weight: 600; }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tag { display: inline-block; font: 600 .7rem/1 var(--font-mono); padding: 4px 6px; border-radius: 4px; background: rgba(255, 95, 217, .14); color: var(--magenta); letter-spacing: .06em; }
.tag.ok { background: rgba(110, 231, 160, .14); color: var(--ok); }
.tag.bad { background: rgba(255, 122, 122, .14); color: var(--bad); }

.roles { list-style: none; padding: 0; margin: 18px 0; display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 210px), 1fr)); }
.roles li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.roles b { display: block; font: 700 1.1rem/1.2 var(--font-head); color: var(--cyan); }
.roles .k { display: block; font: 500 .75rem/1.4 var(--font-mono); color: var(--magenta); text-transform: uppercase; letter-spacing: .08em; margin: 2px 0 8px; }
.roles p { margin: 0; color: var(--muted); font-size: .94rem; }

.q { margin: 0 0 14px; padding: 14px 16px; background: var(--bg-2); border: 1px solid var(--line); border-left: 3px solid var(--cyan); border-radius: 0 var(--radius) var(--radius) 0; }
.q p { margin: 0 0 6px; font-family: var(--font-mono); font-size: .9rem; line-height: 1.55; color: var(--text); }
.q footer { color: var(--muted); font-size: .85rem; }
.quotes { display: grid; gap: 0 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); }
.timeline .ver.ok { color: var(--ok); }
.timeline .ver.bad { color: var(--bad); }
.timeline.case li.now::before { background: var(--ok); border-color: var(--ok); box-shadow: 0 0 10px var(--ok); }

/* Suwak przed/po */
.ba-frame { position: relative; overflow: hidden; background: #05070c; touch-action: pan-y; --pos: 50%; }
.ba-frame img { width: 100%; display: block; user-select: none; -webkit-user-drag: none; }
.ba-after { position: absolute; inset: 0; height: 100%; object-fit: cover; clip-path: inset(0 0 0 var(--pos)); }
.ba-handle { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 2px; margin-left: -1px; background: var(--amber); box-shadow: 0 0 10px rgba(255, 200, 87, .7); pointer-events: none; }
.ba-handle::after { content: "⟷"; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 40px; height: 40px; border-radius: 50%; background: var(--bg); border: 2px solid var(--amber); color: var(--amber); display: grid; place-items: center; font-size: 18px; }
.ba-label { position: absolute; top: 10px; padding: 4px 8px; border-radius: 4px; background: rgba(9, 12, 20, .82); font: 600 .75rem/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; pointer-events: none; }
.ba-label.l { left: 10px; color: var(--text); }
.ba-label.r { right: 10px; color: var(--amber); }
.ba-range { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }
.ba-range:focus-visible + .ba-handle, .ba-frame:has(.ba-range:focus-visible) .ba-handle::after { outline: 3px solid var(--cyan); outline-offset: 2px; }

/* Wykres */
.chart { padding: 14px 14px 0; }
.chart-svg { width: 100%; height: auto; }
.chart-svg .g { stroke: var(--line); stroke-width: 1; }
.chart-svg .ax { fill: var(--muted); font: 500 11px var(--font-mono); }
.chart-svg .lg { fill: var(--text); font: 500 12px var(--font-body); }
.chart-svg .val { fill: var(--text); font: 600 12px var(--font-mono); }
.chart-svg .bar:hover rect:not([fill="transparent"]), .chart-svg .bar:hover path { opacity: .82; }
.chart figcaption { padding-left: 0; padding-right: 0; }
details { margin-top: 8px; }
summary { cursor: pointer; color: var(--cyan); }
.diagram.tall img { min-width: 0; max-width: 420px; width: 100%; }