/* GISBoost — architektura Easy-R5. Shared by index.html (PL) and en/index.html (EN).
   Brand tokens (bg/surface/border/ink/chrome/accent) + .topbar/.brand/.topnav-link come
   from the shared gisboost-1.css (linked before this file). The tokens below are this
   page's own content semantics — diagram zone colors, warning/error notes, terminal
   syntax highlighting — not part of the cross-site brand, so they stay local. */

:root {
  --paper: var(--bg);
  --paper-raised: var(--surface);
  --line: var(--border);
  --line-soft: var(--border);
  --ink-faint: var(--ink-muted);
  --blue: var(--accent);
  --blue-ink: var(--accent-ink);
  --blue-soft: var(--accent-soft);
  --green: #2e7d32;
  --green-ink: #1b5e20;
  --green-soft: #e6f2e6;
  --amber: #a6650a;
  --amber-ink: #874f05;
  --amber-soft: #f8ecd8;
  --red: #b3261e;
  --red-ink: #8f1c16;
  --red-soft: #f8e4e2;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --green: #66bb6a; --green-ink: #9ccc9f; --green-soft: #24331f;
    --amber: #e0ab52; --amber-ink: #ecc07d; --amber-soft: #362c1a;
    --red: #ef9a9a; --red-ink: #f2b1b1; --red-soft: #3a2222;
  }
}
:root[data-theme="dark"] {
  --green: #66bb6a; --green-ink: #9ccc9f; --green-soft: #24331f;
  --amber: #e0ab52; --amber-ink: #ecc07d; --amber-soft: #362c1a;
  --red: #ef9a9a; --red-ink: #f2b1b1; --red-soft: #3a2222;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 15.5px/1.62 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
[hidden] { display: none !important; }
::selection { background: var(--blue-soft); }
a { color: var(--blue-ink); text-underline-offset: 0.15em; text-decoration-thickness: 1px; }
a:hover { color: var(--blue); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 2px; }

code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--paper-raised);
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  padding: 0.06em 0.34em;
  color: var(--ink);
}

/* ---- top bar ---- */
/* .topbar / .brand / .topnav / .topnav-link come from the shared stylesheet.
   Only the language/theme toggles need page-specific tuning: they sit on the
   shared dark chrome bar but aren't part of the cross-site topbar contract. */
.topbar .theme-toggle {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.04em; text-transform: uppercase;
}
@media (max-width: 700px) { .topnav .topnav-link[href^="#"] { display: none; } }

/* ---- layout ---- */
main { padding: 0 clamp(1rem, 4vw, 2rem) 4.5rem; }
.read { max-width: var(--read); margin-inline: auto; }
.wide { max-width: var(--wide); margin-inline: auto; }
section { scroll-margin-top: 4.5rem; }
section + section { margin-top: 3.75rem; }

.eyebrow {
  font: 600 0.72rem/1 var(--sans);
  letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--ink-muted); margin: 0 0 0.85rem;
}
h1 {
  font: 800 clamp(1.95rem, 5vw, 2.6rem)/1.05 var(--display);
  letter-spacing: -0.02em; text-wrap: balance; margin: 0 0 1rem;
}
h2 {
  font: 700 clamp(1.45rem, 3.4vw, 1.75rem)/1.15 var(--display);
  letter-spacing: -0.012em; text-wrap: balance; margin: 0 0 0.9rem;
}
h3 { font: 700 1.1rem/1.3 var(--display); margin: 1.9rem 0 0.5rem; }
p { margin: 0 0 1rem; }
.lead { font-size: 1.12rem; line-height: 1.55; color: var(--ink-muted); }
.lead strong { color: var(--ink); font-weight: 600; }
.hero { padding: 2.75rem 0 0; }

/* ---- fact strip ---- */
.facts {
  display: grid; grid-template-columns: repeat(4, 1fr);
  margin: 1.8rem 0 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
}
.facts > div { padding: 0.9rem 1rem; }
.facts > div + div { border-left: 1px solid var(--line); }
.facts dt {
  font: 700 1.35rem/1 var(--mono); color: var(--ink);
  font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
}
.facts dd { margin: 0.4rem 0 0; font-size: 0.8rem; line-height: 1.35; color: var(--ink-muted); }
@media (max-width: 640px) {
  .facts { grid-template-columns: repeat(2, 1fr); }
  .facts > div:nth-child(3) { border-left: none; }
  .facts > div:nth-child(n+3) { border-top: 1px solid var(--line); }
}

/* ---- figures ---- */
figure { margin: 1.75rem 0 0; }
.figframe {
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--paper-raised); padding: 1.2rem; overflow-x: auto;
}
.figframe svg { display: block; width: 100%; min-width: 720px; height: auto; }
#d2 .figframe svg { min-width: 640px; }
figcaption { margin-top: 0.85rem; font-size: 0.85rem; line-height: 1.5; color: var(--ink-muted); }
figcaption strong { color: var(--ink); font-weight: 600; }
.legend {
  display: flex; flex-wrap: wrap; gap: 0.85rem 1.4rem; margin-top: 0.9rem;
  font: 500 0.75rem/1.3 var(--mono); color: var(--ink-muted);
}
.legend span { display: inline-flex; align-items: center; gap: 0.45rem; }
.swatch { width: 0.8rem; height: 0.8rem; border-radius: 2px; flex: none; }

/* ---- diagram internals ---- */
.diagram text { fill: var(--ink); font-family: var(--sans); }
.diagram .m { font-family: var(--mono); }
.diagram .lbl { font-size: 12.5px; font-weight: 600; letter-spacing: -0.01em; }
.diagram .sub { font-size: 9.5px; fill: var(--ink-muted); }
.diagram .sub-flow { font-size: 9.5px; fill: var(--amber-ink); font-family: var(--mono); }
.diagram .node { fill: var(--paper); stroke: var(--line); stroke-width: 1.25; }
.diagram .zone-py { fill: color-mix(in srgb, var(--blue) 8%, var(--paper)); stroke: var(--blue); stroke-width: 1.5; }
.diagram .zone-r5 { fill: color-mix(in srgb, var(--green) 9%, var(--paper)); stroke: var(--green); stroke-width: 1.5; }
.diagram .pivot { fill: color-mix(in srgb, var(--amber) 12%, var(--paper)); stroke: var(--amber); stroke-width: 2; }
.diagram .flow { stroke: var(--amber); stroke-width: 2.75; fill: none; }
.diagram .wire { stroke: var(--ink-faint); stroke-width: 1.5; fill: none; }
.diagram .dash { stroke: var(--ink-faint); stroke-width: 1.25; stroke-dasharray: 4 4; opacity: 0.85; }
.diagram .tagbox { fill: var(--paper); stroke: var(--ink-faint); stroke-width: 1; }
.diagram .callout { fill: var(--paper); stroke: color-mix(in srgb, var(--amber) 55%, transparent); stroke-width: 1; }
.diagram .crash { fill: none; stroke: var(--red); stroke-width: 2; }
.diagram .crash-fill { fill: color-mix(in srgb, var(--red) 14%, var(--paper)); stroke: var(--red); stroke-width: 1.5; }
.diagram .ok { fill: var(--green-ink); }
.diagram .bad { fill: var(--red); }

/* ---- definitions ---- */
dl.names { margin: 1.5rem 0 0; }
dl.names > div {
  display: grid; grid-template-columns: 14rem 1fr; gap: 1.3rem;
  padding: 1.05rem 0; border-top: 1px solid var(--line-soft);
}
dl.names > div:last-child { border-bottom: 1px solid var(--line-soft); }
dl.names dt { font: 400 0.8rem/1.4 var(--mono); color: var(--ink-muted); }
dl.names dt b {
  display: block; font-family: var(--display); font-weight: 700; font-size: 0.95rem;
  color: var(--ink); margin-bottom: 0.2rem; letter-spacing: 0;
}
dl.names dd { margin: 0; color: var(--ink); }
@media (max-width: 640px) { dl.names > div { grid-template-columns: 1fr; gap: 0.35rem; } }

/* ---- teza ---- */
.teza { margin: 2rem 0 0; padding: 1.4rem 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.teza .k {
  margin: 0 0 0.6rem; font: 600 0.72rem/1 var(--sans);
  letter-spacing: 0.09em; text-transform: uppercase; color: var(--green-ink);
}
.teza p:last-child { margin: 0; font: 500 1.16rem/1.5 var(--sans); color: var(--ink); }
.teza b { font-weight: 600; }

/* ---- note ---- */
.note {
  margin: 1.6rem 0 0; padding: 1rem 1.15rem; border-radius: 6px;
  border: 1px solid color-mix(in srgb, var(--amber) 42%, var(--line));
  background: var(--amber-soft); font-size: 0.9rem; line-height: 1.55;
}
.note.rev {
  border-color: color-mix(in srgb, var(--red) 42%, var(--line));
  background: var(--red-soft);
}
.note .h {
  display: block; margin: 0 0 0.45rem;
  font: 600 0.7rem/1 var(--mono); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--amber-ink);
}
.note.rev .h { color: var(--red-ink); }
.note b { font-weight: 600; }

/* ---- table ---- */
.tablewrap { overflow-x: auto; margin: 1.75rem 0 0; border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; min-width: 640px; font-size: 0.88rem; }
caption { text-align: left; padding: 0.9rem 1rem; color: var(--ink-muted); font-size: 0.82rem; border-bottom: 1px solid var(--line); }
th, td { text-align: left; padding: 0.66rem 1rem; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
thead th {
  font: 600 0.72rem/1.3 var(--mono); letter-spacing: 0.03em; text-transform: uppercase;
  color: var(--ink-muted); white-space: nowrap;
}
tbody th { font-weight: 500; color: var(--ink); white-space: nowrap; }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: none; }
.tablewrap td.col-us { background: var(--green-soft); }
.tablewrap thead .col-us { color: var(--green-ink); background: var(--green-soft); }
.yes { color: var(--green-ink); font-weight: 600; }
.no { color: var(--red); font-weight: 600; }
.partial { color: var(--ink-faint); }
table code { font-size: 0.82rem; }

/* ---- terminal ---- */
.term {
  margin: 1.4rem 0 0; background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: 8px; padding: 1rem 1.15rem; overflow-x: auto; white-space: pre;
  font: 400 0.8rem/1.7 var(--mono); color: var(--ink); tab-size: 2;
}
.term .cap {
  display: block; color: var(--ink-faint); font-size: 0.7rem;
  letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.3rem;
}
.term .k { color: var(--green-ink); }
.term .s { color: var(--blue-ink); }
.term .c { color: var(--ink-faint); }

ul.tight { margin: 1rem 0 0; padding-left: 1.25rem; }
ul.tight li { margin: 0.5rem 0; }
ol.spine { padding-left: 0; list-style: none; counter-reset: s; margin: 1.4rem 0 0; }
ol.spine li {
  counter-increment: s; position: relative;
  padding: 0.75rem 0 0.75rem 2.3rem; border-top: 1px solid var(--line-soft);
}
ol.spine li:last-child { border-bottom: 1px solid var(--line-soft); }
ol.spine li::before {
  content: counter(s); position: absolute; left: 0; top: 0.78rem;
  font: 500 0.82rem/1.7 var(--mono); color: var(--blue-ink);
}

footer {
  max-width: var(--read); margin: 4rem auto 0; padding-top: 1.5rem;
  border-top: 1px solid var(--line); font-size: 0.84rem; color: var(--ink-muted);
}
footer h3 {
  margin: 0 0 0.7rem; font: 600 0.72rem/1 var(--mono);
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint);
}
footer ul { list-style: none; padding: 0; margin: 0 0 1.3rem; }
footer li { margin: 0.35rem 0; }
footer .gen { color: var(--ink-faint); font-size: 0.8rem; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}