/* Człowiek 2.0? — strona sympozjum. Paleta i typografia z plakatu. */
:root {
  --paper: #EEEDEA;
  --ink: #141414;
  --red: #D7261E;
  --grey: #8C8A84;
  --rule: rgba(20, 20, 20, .2);
  --gut: clamp(16px, 4.4vw, 64px);
  --nav: 52px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav); -webkit-text-size-adjust: 100%; }
body { background: var(--paper); color: var(--ink); font-family: 'Archivo', system-ui, sans-serif; font-weight: 500; line-height: 1.35; overflow-x: clip; }
img { display: block; max-width: 100%; }
a { color: inherit; }
.mono { font-family: 'IBM Plex Mono', ui-monospace, monospace; }
.wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 var(--gut); }
.label { font-size: 12.5px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--grey); }
.h2 { font-weight: 900; font-size: clamp(34px, 5.4vw, 76px); line-height: .95; letter-spacing: -.04em; max-width: 15ch; margin-top: 14px; }

/* ——— nawigacja ——— */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--nav); display: flex; align-items: center; gap: 28px; padding: 0 var(--gut); background: color-mix(in srgb, var(--paper) 86%, transparent); backdrop-filter: blur(14px) saturate(1.4); -webkit-backdrop-filter: blur(14px) saturate(1.4); border-bottom: 1px solid var(--rule); font: 500 13px/1 'IBM Plex Mono', monospace; transition: background .3s, color .3s, border-color .3s; }
.nav__brand { text-decoration: none; white-space: nowrap; text-transform: uppercase; letter-spacing: .03em; }
.nav__brand b { font-weight: 600; }
.nav__links { display: flex; gap: 22px; margin-left: auto; }
.nav__links a { text-decoration: none; opacity: .75; }
.nav__links a:hover { opacity: 1; text-decoration: underline; text-underline-offset: 4px; }
.nav__date { font-weight: 600; color: var(--red); }
.nav.is-red { background: color-mix(in srgb, var(--red) 88%, transparent); color: var(--paper); border-color: transparent; }
.nav.is-red .nav__date { color: var(--paper); }
.nav__info, .nav__burger { display: none; }
@media (max-width: 860px) {
  .nav__brand span { display: none; }
  .nav__date { margin-left: auto; }
  /* hamburger */
  .nav__burger { display: grid; place-content: center; gap: 7px; width: 44px; height: 44px; margin-right: -10px; background: none; border: 0; color: inherit; cursor: pointer; }
  .nav__burger span { display: block; width: 24px; height: 2px; background: currentColor; transition: transform .3s cubic-bezier(.2,.7,.2,1); }
  .nav.is-open .nav__burger span:first-child { transform: translateY(4.5px) rotate(45deg); }
  .nav.is-open .nav__burger span:last-child { transform: translateY(-4.5px) rotate(-45deg); }
  /* panel menu (absolute, bo .nav ma backdrop-filter i jest blokiem odniesienia) */
  .nav__links { position: absolute; top: 100%; left: 0; right: 0; height: calc(100svh - var(--nav)); margin: 0; padding: 4vh var(--gut) 32px; flex-direction: column; gap: 0; background: var(--paper); color: var(--ink); border-top: 1px solid var(--rule); visibility: hidden; opacity: 0; transform: translateY(-8px); transition: opacity .25s, transform .25s, visibility 0s .25s; overflow-y: auto; }
  .nav.is-open .nav__links { visibility: visible; opacity: 1; transform: none; transition: opacity .25s, transform .25s; }
  .nav__links a { opacity: 1; font: 900 clamp(36px, 11vw, 56px)/1 'Archivo', sans-serif; letter-spacing: -.04em; padding: 16px 0; border-bottom: 1px solid var(--rule); }
  .nav__links a:hover { text-decoration: none; color: var(--red); }
  .nav__info { display: block; margin-top: auto; padding-top: 28px; font: 500 13px/1.6 'IBM Plex Mono', monospace; color: var(--red); }
  .nav.is-open { background: var(--paper); color: var(--ink); border-color: var(--rule); }
  .nav.is-open .nav__date { color: var(--red); }
  html.menu-open { overflow: hidden; }
}

/* ——— sceny przewijane ——— */
.scene { position: relative; height: var(--len, 300vh); }
.sticky { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }

/* 1. tytuł */
.hero .sticky { display: flex; flex-direction: column; justify-content: center; padding: calc(var(--nav) + 20px) max(var(--gut), calc((100vw - 1400px) / 2)) 40px; }
.hero__top { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; }
.hero__jub { width: clamp(110px, 13vw, 190px); height: auto; flex: none; }
.hero__jub-m { display: none; }
@media (max-width: 760px) {
  .hero__jub { display: none; }
  .hero__jub-m { display: block; width: 170px; height: auto; margin-top: 30px; }
}
.hero__kicker { font-size: clamp(11px, 1.1vw, 14px); font-weight: 500; text-transform: uppercase; letter-spacing: .03em; border-bottom: 2px solid var(--ink); padding-bottom: 12px; max-width: 60ch; }
.hero__title { margin-top: 3vh; font-weight: 900; font-size: clamp(52px, 19vw, 260px); line-height: .84; letter-spacing: -.055em; }
.hero__word, .hero__ver { display: block; }
.hero__ver { color: var(--red); transform-origin: 30% 55%; }
.hero__hint { position: absolute; left: var(--gut); bottom: 28px; font-size: 13px; color: var(--grey); }
.hero__wash { position: absolute; inset: 0; background: var(--red); opacity: 0; pointer-events: none; }
.hero__sub { position: absolute; left: var(--gut); right: var(--gut); top: 50%; transform: translateY(-50%); max-width: 1100px; margin: 0 auto; color: var(--paper); font-weight: 800; font-size: clamp(30px, 5vw, 72px); line-height: 1.02; letter-spacing: -.03em; opacity: 0; }
.hero__sub span { font-weight: 500; }

/* 2. kołyska */
.cradle .sticky { background: var(--paper); }
.cradle__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.cradle__fallback { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; opacity: 0; }
.no-frames .cradle__fallback { opacity: 1; }
.cradle__shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(238,237,234,.92) 0%, rgba(238,237,234,.7) 32%, rgba(238,237,234,0) 55%); opacity: 0; pointer-events: none; }
.cradle__caps { position: absolute; z-index: 2; left: var(--gut); top: 0; bottom: 0; width: min(560px, 46vw); display: grid; align-items: center; }
.cap { grid-area: 1 / 1; font-weight: 800; font-size: clamp(26px, 3.3vw, 48px); line-height: 1.05; letter-spacing: -.025em; opacity: 0; transform: translateY(24px); will-change: transform, opacity; }
.cap em { font-style: normal; color: var(--red); }
.cap--last { color: var(--ink); }
.cradle__white { position: absolute; inset: 0; z-index: 1; background: var(--paper); opacity: 0; pointer-events: none; }
@media (max-width: 760px) {
  .cradle__caps { width: auto; right: var(--gut); align-items: end; padding-bottom: 14vh; }
  .cap { font-size: 28px; background: color-mix(in srgb, var(--paper) 82%, transparent); padding: 10px 12px; }
}

/* 3. kiedy i gdzie */
.when .sticky { display: flex; align-items: flex-start; padding-top: calc(var(--nav) + 7vh); }
.when__date { margin-top: 16px; font-weight: 900; line-height: .9; letter-spacing: -.05em; }
.when__d, .when__t { display: block; will-change: transform, opacity; }
.when__d { font-size: clamp(56px, 12.6vw, 196px); }
.when__t { font-size: clamp(44px, 8.6vw, 132px); color: var(--red); }
.when__place { margin-top: 34px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 20px 40px; border-top: 2px solid var(--ink); padding-top: 20px; will-change: transform, opacity; }
.when__venue { font-size: clamp(20px, 2.2vw, 30px); line-height: 1.25; }
.when__actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btn { appearance: none; font: 600 13px/1 'IBM Plex Mono', monospace; text-transform: uppercase; letter-spacing: .06em; text-decoration: none; padding: 14px 18px; border: 2px solid var(--ink); background: transparent; color: var(--ink); cursor: pointer; transition: background .2s, color .2s; }
.btn:hover, .btn:focus-visible { background: var(--ink); color: var(--paper); }
.btn--ink { background: var(--red); border-color: var(--red); color: #fff; }
.btn--ink:hover, .btn--ink:focus-visible { background: var(--ink); border-color: var(--ink); }

/* 4. program */
.program { padding: 14vh 0 10vh; }
.program__head { margin-bottom: 7vh; }
.tl { list-style: none; }
.row { display: grid; grid-template-columns: 92px 1fr; gap: 0 20px; padding: 18px 0 20px; border-bottom: 1px solid var(--rule); }
.row .t { font: 600 clamp(16px, 1.5vw, 20px)/1.4 'IBM Plex Mono', monospace; color: var(--red); }
.row b { display: block; font-weight: 700; font-size: clamp(19px, 2vw, 28px); line-height: 1.18; letter-spacing: -.015em; max-width: 34ch; }
.row i { display: block; margin-top: 8px; font: 400 clamp(13px, 1.1vw, 15px)/1.45 'IBM Plex Mono', monospace; font-style: normal; }
.row--muted .t, .row--muted b { color: var(--grey); font-weight: 500; }
.sess { margin-top: 7vh; }
.bar { position: sticky; top: var(--nav); z-index: 5; background: var(--ink); color: var(--paper); font: 600 13px/1 'IBM Plex Mono', monospace; letter-spacing: .12em; text-transform: uppercase; padding: 11px 14px; }
.panel { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 40px; margin-left: 112px; padding: 6px 0 10px; border-bottom: 1px solid var(--rule); }
.panel li { padding: 14px 0; border-top: 1px solid var(--rule); }
.panel li:nth-child(-n+2) { border-top: none; }
.panel b { display: block; font-weight: 800; font-size: clamp(18px, 1.8vw, 24px); letter-spacing: -.01em; }
.panel i { display: block; margin-top: 4px; font: 400 13px/1.45 'IBM Plex Mono', monospace; font-style: normal; color: #4b4a46; }
@media (max-width: 760px) {
  .row { grid-template-columns: 62px 1fr; gap: 0 12px; }
  .panel { grid-template-columns: 1fr; margin-left: 74px; }
  .panel li:nth-child(2) { border-top: 1px solid var(--rule); }
}

/* 5. prelegenci */
.speakers { padding: 12vh 0 14vh; border-top: 2px solid var(--ink); }
.sp { list-style: none; margin-top: 7vh; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); border-top: 2px solid var(--ink); }
.sp li { padding: 22px 20px 26px 0; border-bottom: 1px solid var(--rule); min-height: 132px; }
.sp b { display: block; font-weight: 800; font-size: 22px; line-height: 1.12; letter-spacing: -.015em; }
.sp i { display: block; margin-top: 10px; font: 400 13px/1.45 'IBM Plex Mono', monospace; font-style: normal; color: #4b4a46; }

/* 6. zamknięcie */
.outro { background: var(--red); color: var(--paper); padding: 18vh 0; }
.outro__q { font-weight: 900; font-size: clamp(56px, 12vw, 190px); line-height: .88; letter-spacing: -.055em; }
.outro__a { margin-top: 28px; font: 500 clamp(14px, 1.4vw, 18px)/1.5 'IBM Plex Mono', monospace; }

/* stopka */
.foot { padding: 64px 0 40px; }
.fgrid { display: grid; grid-template-columns: auto 1fr; gap: 24px 64px; }
.foot h4 { margin-bottom: 16px; }
.org { display: flex; flex-direction: column; align-items: flex-start; gap: 22px; }
.jub { width: 150px; height: auto; }
.lg { height: var(--h); width: auto; max-width: 190px; object-fit: contain; mix-blend-mode: multiply; }
.strip { width: 100%; height: auto; mix-blend-mode: multiply; }
.logos { margin-top: 28px; display: grid; grid-template-columns: repeat(4, auto); justify-content: space-between; justify-items: center; align-items: center; gap: 22px 24px; }
.foot__small { margin-top: 56px; padding-top: 16px; border-top: 1px solid var(--rule); font-size: 12px; color: var(--grey); }
@media (max-width: 860px) {
  .fgrid { grid-template-columns: 1fr; }
  .logos { grid-template-columns: repeat(2, 1fr); }
}

/* pojawianie się przy przewijaniu */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.is-in { opacity: 1; transform: none; }

/* mniej ruchu */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scene { height: auto; }
  .sticky { position: relative; height: auto; min-height: 100svh; }
  .hero__wash, .hero__sub, .cradle__white { display: none; }
  .cradle__fallback { opacity: 1; }
  .cradle__canvas { display: none; }
  .cap { position: relative; opacity: 1; transform: none; background: color-mix(in srgb, var(--paper) 85%, transparent); padding: 6px 10px; margin-bottom: 10px; }
  .cradle__caps { display: block; padding-top: 20vh; }
  .reveal { opacity: 1; transform: none; transition: none; }
}