/* Fonty hostowane lokalnie (SIL Open Font License, patrz fonts/LICENSE-*.txt) */
@font-face { font-family: 'Source Sans 3'; font-style: normal; font-weight: 400; font-display: swap; src: url(fonts/source-sans-3-latin-ext-400-normal.woff2) format('woff2'); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family: 'Source Sans 3'; font-style: normal; font-weight: 400; font-display: swap; src: url(fonts/source-sans-3-latin-400-normal.woff2) format('woff2'); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: 'Source Sans 3'; font-style: italic; font-weight: 400; font-display: swap; src: url(fonts/source-sans-3-latin-ext-400-italic.woff2) format('woff2'); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family: 'Source Sans 3'; font-style: italic; font-weight: 400; font-display: swap; src: url(fonts/source-sans-3-latin-400-italic.woff2) format('woff2'); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: 'Source Sans 3'; font-style: normal; font-weight: 600; font-display: swap; src: url(fonts/source-sans-3-latin-ext-600-normal.woff2) format('woff2'); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family: 'Source Sans 3'; font-style: normal; font-weight: 600; font-display: swap; src: url(fonts/source-sans-3-latin-600-normal.woff2) format('woff2'); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: 'Schibsted Grotesk'; font-style: normal; font-weight: 500; font-display: swap; src: url(fonts/schibsted-grotesk-latin-ext-500-normal.woff2) format('woff2'); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family: 'Schibsted Grotesk'; font-style: normal; font-weight: 500; font-display: swap; src: url(fonts/schibsted-grotesk-latin-500-normal.woff2) format('woff2'); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: 'Schibsted Grotesk'; font-style: normal; font-weight: 700; font-display: swap; src: url(fonts/schibsted-grotesk-latin-ext-700-normal.woff2) format('woff2'); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family: 'Schibsted Grotesk'; font-style: normal; font-weight: 700; font-display: swap; src: url(fonts/schibsted-grotesk-latin-700-normal.woff2) format('woff2'); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url(fonts/ibm-plex-mono-latin-ext-400-normal.woff2) format('woff2'); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url(fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2'); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url(fonts/ibm-plex-mono-latin-ext-500-normal.woff2) format('woff2'); unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url(fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2'); unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }

:root {
  --bg: #fbfbfa;
  --fg: #111113;
  --muted: #62626a;
  --rule: #111113;
  --hair: #d9d9de;
  --accent: #2433e0;
  --on-accent: #ffffff;
  --text: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --display: "Schibsted Grotesk", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d0d10;
    --fg: #ececee;
    --muted: #9b9ba5;
    --rule: #ececee;
    --hair: #2a2a31;
    --accent: #8f9bff;
    --on-accent: #0d0d10;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0d0d10;
  --fg: #ececee;
  --muted: #9b9ba5;
  --rule: #ececee;
  --hair: #2a2a31;
  --accent: #8f9bff;
  --on-accent: #0d0d10;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 1rem; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--text);
  font-size: 1.1875rem;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--on-accent); }

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2em;
}
a:hover { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { max-width: 78rem; margin: 0 auto; padding: 0 32px; }

.num {
  font-family: var(--mono);
  font-weight: 500;
  font-feature-settings: "zero" 0;
  color: var(--accent);
  letter-spacing: 0;
}

/* ---------- Pasek górny ---------- */

.bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.bar .mark {
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.bar nav { display: flex; flex-wrap: wrap; gap: 0.2rem 1.25rem; margin-left: auto; }
.bar nav a { text-decoration: none; color: var(--muted); }
.bar nav a:hover { color: var(--fg); }
.bar nav a span { color: var(--accent); margin-right: 0.35em; }

.lang { display: flex; font-family: var(--mono); font-size: 0.78rem; }
.lang a, .lang span {
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--rule);
  text-decoration: none;
}
.lang a + span, .lang span + a { border-left: 0; }
.lang span { background: var(--fg); color: var(--bg); }

/* ---------- Hero ---------- */

.hero { padding: 4.5rem 0 3.5rem; }

.hero h1 {
  margin: 0 0 3rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(3.4rem, 12.5vw, 10.5rem);
  line-height: 0.86;
  letter-spacing: -0.055em;
  margin-left: -0.06em;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

.lead {
  margin: 0;
  font-size: clamp(1.3rem, 2.1vw, 1.65rem);
  line-height: 1.4;
  max-width: 36rem;
}

.facts { margin: 0; border-top: 1px solid var(--rule); }
.facts > div {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--hair);
}
.facts dt {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding-top: 0.25rem;
}
.facts dd { margin: 0; font-size: 1rem; line-height: 1.45; }

/* ---------- Sekcje ---------- */

.sec {
  display: grid;
  grid-template-columns: 4.5rem 15rem minmax(0, 1fr);
  gap: 0 2rem;
  padding: 2.25rem 0 3.5rem;
  border-top: 2px solid var(--rule);
}

.sec > .num { font-size: 1.05rem; padding-top: 0.45rem; }

.sec > h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.85rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.sec-body > :first-child { margin-top: 0; }
.sec-body > :last-child { margin-bottom: 0; }
.sec-body p { margin: 0 0 1rem; max-width: 42rem; }

/* Podpunkty w stylu Traktatu: 2.1, 3.11 … */

.item {
  display: grid;
  grid-template-columns: 3.75rem minmax(0, 1fr);
  gap: 0 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--hair);
}
.item:first-child { border-top: 0; padding-top: 0.4rem; }
.item > .num { font-size: 0.8rem; padding-top: 0.3rem; }
.item.sub > .num { color: var(--muted); }

.item h3 {
  margin: 0 0 0.35rem;
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.item .title { display: block; font-weight: 600; line-height: 1.4; }
.item .meta { display: block; margin-top: 0.2rem; color: var(--muted); font-size: 1rem; }
.item .meta em { color: var(--fg); }
.item p { margin: 0.4rem 0 0; }

.project-title {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.45rem !important;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0.2rem 0 0.8rem !important;
}

.slashes { list-style: none; margin: 0.2rem 0 0; padding: 0; line-height: 1.8; }
.slashes li { display: inline; }
.slashes li + li::before { content: " / "; color: var(--accent); font-family: var(--mono); }

.badge {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.05rem 0.4rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--accent);
  color: var(--on-accent);
  vertical-align: 0.15em;
  white-space: nowrap;
}

.row { display: flex; justify-content: space-between; align-items: baseline; gap: 0.25rem 1.5rem; flex-wrap: wrap; }
.when { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); white-space: nowrap; }

.item ul.points { margin: 0.6rem 0 0; padding: 0; list-style: none; }
.item ul.points li { position: relative; padding-left: 1.2rem; margin-bottom: 0.3rem; }
.item ul.points li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ---------- 7 ---------- */

.coda {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0 2rem;
  padding: 3rem 0 4rem;
  border-top: 2px solid var(--rule);
}
.coda > .num { font-size: 1.05rem; padding-top: 0.9rem; }

.coda blockquote {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4.6vw, 3.6rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  max-width: 58rem;
}
.coda .cite {
  margin: 1rem 0 3rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
}
.coda .cite i { font-family: var(--text); font-size: 0.95rem; }

.contact-lead { margin: 0 0 0.5rem; color: var(--muted); }
.contact-links { display: flex; flex-wrap: wrap; gap: 0.5rem 2rem; font-family: var(--display); font-weight: 500; font-size: clamp(1.3rem, 2.6vw, 1.9rem); letter-spacing: -0.02em; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 2rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
}

/* ---------- Tablet ---------- */

@media (max-width: 1000px) {
  .sec { grid-template-columns: 3.5rem minmax(0, 1fr); }
  .sec > h2 { margin-bottom: 1.5rem; }
  .sec-body { grid-column: 2; }
  .coda { grid-template-columns: 3.5rem minmax(0, 1fr); }
}

/* ---------- Telefon ---------- */

@media (max-width: 720px) {
  body { font-size: 1.0625rem; }
  .wrap { padding: 0 16px; }
  .bar { flex-wrap: wrap; gap: 0.6rem 1rem; }
  .bar nav { order: 3; width: 100%; margin-left: 0; gap: 0.2rem 0.9rem; }
  .lang { margin-left: auto; }
  .hero { padding: 2.5rem 0 2.5rem; }
  .hero h1 { margin-bottom: 2rem; }
  .hero-grid { grid-template-columns: 1fr; gap: 2rem; }
  .facts > div { grid-template-columns: 5.5rem 1fr; }
  .sec, .coda { grid-template-columns: 2.25rem minmax(0, 1fr); gap: 0 0.75rem; padding: 1.75rem 0 2.5rem; }
  .sec > .num, .coda > .num { font-size: 0.9rem; padding-top: 0.35rem; }
  .sec > h2 { font-size: 1.55rem; margin-bottom: 1.25rem; }
  .item { grid-template-columns: 1fr; }
  .item > .num { padding: 0 0 0.2rem; }
  .coda > .num { padding-top: 0.5rem; }
}

@media print {
  .bar nav, .lang { display: none; }
  body { background: #fff; color: #000; font-size: 10.5pt; }
  .hero h1 { font-size: 44pt; }
  .sec, .item { break-inside: avoid; }
  a { text-decoration: none; }
}