@charset "UTF-8";
/* ==========================================================================
   Akademia BOPS 2026
   Design system — navy / blue / white, per brand guidelines.
   Motif: isotactic polypropylene backbone (the material BOPS actually makes).
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Colour — strictly navy / blue / white */
  --navy-900: #08192f;
  --navy-800: #0b2444;
  --navy-700: #123a63;
  --navy-600: #1b4f80;
  --blue-600: #2e6dad;
  --blue-500: #4b89c7; /* brand link blue, taken from basellorlen.pl */
  --blue-300: #93c0e6;
  --blue-100: #d7e6f4;
  --ice-50: #f2f6fa;
  --white: #ffffff;
  --ink: #1a1a1a; /* brand body black */
  --slate: #5e7085;
  --line: #dde6ef;
  --line-strong: #c3d3e3;

  /* Type */
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Open Sans", "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --font-serif: "Newsreader", Georgia, "Times New Roman", serif;

  /* Space */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 128px;

  --shell: 1240px;
  --gutter: clamp(20px, 5vw, 56px);
  /* marginesy nigdy nie wchodzą pod notch ani pod zaokrąglenia ekranu */
  --gutter-l: max(var(--gutter), env(safe-area-inset-left, 0px));
  --gutter-r: max(var(--gutter), env(safe-area-inset-right, 0px));
  --section-y: clamp(56px, 9vw, 120px);
  --header-h: 64px;
  --radius: 4px;

  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

@media (min-width: 900px) {
  :root {
    --header-h: 84px;
  }
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  /* strona jest jasna — nie pozwalamy przeglądarce przemalować kontrolek */
  color-scheme: light;
  /* bez 300 ms opóźnienia po tapnięciu; pinch-zoom działa dalej */
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(75, 137, 199, 0.24);
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.68;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* długie nazwisko albo tytuł bez spacji nie rozpycha karty */
h1,
h2,
h3,
h4,
p,
li,
dt,
dd,
summary {
  overflow-wrap: break-word;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

svg {
  display: block;
}

a {
  color: var(--blue-600);
  text-decoration: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 112;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.06;
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0 0 1.1em;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

/* Focus — one consistent, obviously visible ring everywhere */
:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 3px;
  border-radius: 2px;
}

.on-navy :focus-visible,
.site-footer :focus-visible,
.top-bar :focus-visible {
  outline-color: var(--blue-300);
}

::selection {
  background: var(--navy-800);
  color: var(--white);
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 200;
  background: var(--white);
  color: var(--navy-900);
  padding: 10px 18px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 12px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   3. Layout primitives
   -------------------------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter-l) var(--gutter-r);
}

.section {
  padding-block: var(--section-y);
}

.section--tight {
  padding-block: clamp(40px, 6vw, 76px);
}

.section--ice {
  background: var(--ice-50);
}

.section--navy {
  background: var(--navy-900);
  color: var(--white);
}

/* --------------------------------------------------------------------------
   4. Type utilities
   -------------------------------------------------------------------------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin: 0 0 var(--sp-4);
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue-500);
  flex: none;
}

.on-navy .eyebrow,
.section--navy .eyebrow {
  color: var(--blue-300);
}

/* Powiększony nadtytuł — użyty nad „Zajmij miejsce na sali”.
   Tracking przeliczony tak, aby odstęp w pikselach został jak w małym
   nadtytule: 0,16em × 12,8/24 ≈ 0,085em. Kropka-znacznik i odstęp
   przed tekstem rosną w tej samej proporcji. */
.eyebrow--lg {
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.085em;
  line-height: 1.2;
  gap: 12px;
  margin-bottom: 30px;
}

.eyebrow--lg::before {
  width: 9px;
  height: 9px;
}


.on-navy .eyebrow::before,
.section--navy .eyebrow::before {
  background: var(--blue-300);
}

.h-xl {
  font-size: clamp(2.5rem, 8.6vw, 5.75rem);
  font-variation-settings: "wdth" 118;
  font-weight: 620;
  letter-spacing: -0.035em;
  line-height: 0.95;
}

.h-lg {
  font-size: clamp(1.85rem, 4.4vw, 3rem);
  letter-spacing: -0.028em;
}

.h-md {
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  letter-spacing: -0.02em;
}

.h-sm {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  font-variation-settings: "wdth" 106;
  letter-spacing: -0.012em;
  line-height: 1.25;
}

.lede {
  font-size: clamp(1.05rem, 1.7vw, 1.25rem);
  line-height: 1.6;
  color: var(--navy-800);
}

.section--navy .lede,
.on-navy .lede {
  color: var(--blue-100);
}

.prose p {
  color: #3c4a5a;
  max-width: 66ch;
}

.section--navy .prose p {
  color: var(--blue-100);
}

.serif-note {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.15rem, 2.6vw, 1.7rem);
  line-height: 1.4;
  letter-spacing: 0.005em;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.meta {
  font-size: 0.9rem;
  color: var(--slate);
  line-height: 1.55;
}

/* Placeholder token — mirrors the [WPISZ…] convention from the brief so the
   client can find every unfinished field at a glance. */
.tbd {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--blue-600);
  background: var(--blue-100);
  border-bottom: 1px dashed var(--blue-500);
  padding: 1px 6px;
  border-radius: 2px;
  white-space: normal;
}

.on-navy .tbd,
.section--navy .tbd {
  color: var(--blue-300);
  background: rgba(147, 192, 230, 0.12);
  border-bottom-color: var(--blue-300);
}

/* --------------------------------------------------------------------------
   5. Buttons & links
   -------------------------------------------------------------------------- */
.btn {
  --btn-bg: var(--blue-500);
  --btn-fg: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 1px solid var(--btn-bg);
  text-align: center;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease),
    color 0.18s var(--ease), transform 0.18s var(--ease);
}

.btn:hover {
  --btn-bg: var(--navy-700);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--navy-800);
  border-color: var(--line-strong);
}

.btn--ghost:hover {
  --btn-bg: transparent;
  --btn-fg: var(--blue-600);
  border-color: var(--blue-500);
}

.on-navy .btn--ghost,
.section--navy .btn--ghost {
  --btn-fg: var(--white);
  border-color: rgba(255, 255, 255, 0.34);
}

.on-navy .btn--ghost:hover,
.section--navy .btn--ghost:hover {
  --btn-bg: rgba(255, 255, 255, 0.08);
  --btn-fg: var(--white);
  border-color: var(--white);
}

.btn--light {
  --btn-bg: var(--white);
  --btn-fg: var(--navy-900);
}

.btn--light:hover {
  --btn-bg: var(--blue-100);
  --btn-fg: var(--navy-900);
}

.btn--sm {
  padding: 10px 18px;
  font-size: 0.8rem;
}

.btn--full {
  width: 100%;
}

.btn .arrow {
  transition: transform 0.18s var(--ease);
}

.btn:hover .arrow {
  transform: translateX(3px);
}

/* Text link with a rule that grows from the left on hover */
.link {
  position: relative;
  display: inline-block;
  color: var(--blue-600);
  font-weight: 600;
  padding-bottom: 2px;
}

.link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}

.link:hover::after,
.link:focus-visible::after {
  transform: scaleX(1);
}

.on-navy .link,
.section--navy .link {
  color: var(--blue-300);
}

/* --------------------------------------------------------------------------
   6. Header & navigation
   Wzorowane na basell.myevent.pl: granatowy pasek informacyjny, pod nim biały
   nagłówek z logo Basell Orlen po lewej i granatowym przyciskiem po prawej.
   Pasek przewija się razem ze stroną, biały nagłówek przypina się do góry.
   -------------------------------------------------------------------------- */
.top-bar {
  background: var(--navy-900);
  color: var(--white);
}

.top-bar-inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: 8px var(--gutter-r) 8px var(--gutter-l);
  display: flex;
  flex-wrap: wrap;
  gap: 4px var(--sp-5);
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.top-bar-inner span:last-child {
  color: var(--white);
}

/* na wąskim ekranie nazwa wydarzenia dubluje lockup tuż pod paskiem —
   zostaje sama data i miasto, dzięki czemu pasek mieści się w jednej linii */
@media (max-width: 599px) {
  .top-bar-inner span:first-child {
    display: none;
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(8, 25, 47, 0.1);
}

.header-inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter-l) var(--gutter-r);
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
}

/* --- Logotyp -------------------------------------------------------------- */
.brand {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.6vw, 20px);
  color: var(--navy-900);
  flex: none;
}

.brand-logo {
  width: auto;
  height: 40px;
  flex: none;
}

@media (min-width: 900px) {
  .brand-logo {
    height: 52px;
  }
}

.brand-rule {
  width: 1px;
  align-self: stretch;
  margin-block: 6px;
  background: rgba(8, 25, 47, 0.16);
  flex: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text b {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 108;
  font-weight: 620;
  font-size: 1.25rem;
  letter-spacing: -0.015em;
  color: var(--navy-900);
}

.brand-text span {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--blue-600);
}

/* --- Menu ---------------------------------------------------------------- */
.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 30px);
}

.nav a:not(.btn) {
  position: relative;
  color: var(--navy-800);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-block: 6px;
  transition: color 0.18s var(--ease);
}

.nav a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--blue-500);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s var(--ease);
}

.nav a:not(.btn):hover {
  color: var(--blue-600);
}

.nav a:not(.btn):hover::after,
.nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav a[aria-current="page"] {
  color: var(--navy-900);
}

.nav .btn {
  --btn-bg: var(--navy-900);
  text-transform: none;
  letter-spacing: 0.01em;
}

.nav .btn:hover {
  --btn-bg: var(--blue-600);
  --btn-fg: var(--white);
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-left: clamp(10px, 1.3vw, 18px);
  border-left: 1px solid rgba(8, 25, 47, 0.16);
  font-family: var(--font-mono);
  color: var(--navy-500);
}

.nav .lang-switcher a:not(.btn) {
  padding: 5px 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--navy-500);
}

.nav .lang-switcher a:not(.btn)::after {
  display: none;
}

.nav .lang-switcher a[aria-current="true"] {
  color: var(--navy-900);
  font-weight: 700;
}

html[lang="en"] .nav {
  gap: clamp(10px, 1.35vw, 22px);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  align-items: center;
  justify-content: center;
  color: var(--navy-900);
}

.nav-toggle span {
  position: relative;
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: background-color 0.2s var(--ease);
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s var(--ease);
}

.nav-toggle span::before {
  top: -7px;
}

.nav-toggle span::after {
  top: 7px;
}

.nav-toggle[aria-expanded="true"] span {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 899px) {
  .nav-toggle {
    display: flex;
  }

  /* --nav-top ustawia main.js na dolną krawędź nagłówka: pasek informacyjny
     przewija się, więc ta krawędź nie jest stała */
  .nav {
    position: fixed;
    inset: var(--nav-top, var(--header-h)) 0 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: var(--sp-5) var(--gutter-r) calc(var(--sp-8) + env(safe-area-inset-bottom, 0px))
      var(--gutter-l);
    background: var(--white);
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.24s var(--ease), transform 0.24s var(--ease),
      visibility 0s linear 0.24s;
  }

  .nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: opacity 0.24s var(--ease), transform 0.24s var(--ease),
      visibility 0s;
  }

  .nav a:not(.btn) {
    font-family: var(--font-display);
    font-variation-settings: "wdth" 110;
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    text-transform: none;
    color: var(--navy-900);
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
  }

  .nav a:not(.btn)::after {
    display: none;
  }

  .nav a[aria-current="page"] {
    color: var(--blue-600);
  }

  .nav .btn {
    margin-top: var(--sp-6);
    padding-block: 16px;
  }

  .lang-switcher {
    align-self: flex-start;
    gap: 10px;
    margin-top: var(--sp-5);
    padding: 0;
    border-left: 0;
  }

  .nav .lang-switcher a:not(.btn) {
    padding: 8px 4px;
    border-bottom: 0;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: var(--navy-500);
  }

  .nav .lang-switcher a[aria-current="true"] {
    color: var(--navy-900);
    font-weight: 700;
  }
}

/* --------------------------------------------------------------------------
   7. Hero — the polypropylene backbone
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--navy-900);
  color: var(--white);
  overflow: hidden;
  isolation: isolate;
}

.hero::after {
  /* keeps the chain from competing with the headline */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    var(--navy-900) 6%,
    rgba(8, 25, 47, 0.88) 32%,
    rgba(8, 25, 47, 0.42) 66%,
    rgba(8, 25, 47, 0.12) 100%
  );
  z-index: -1;
}

.hero-chain {
  position: absolute;
  left: 0;
  right: 0;
  top: 52%;
  transform: translateY(-50%);
  z-index: -2;
  pointer-events: none;
  overflow: hidden;
}

/* Width-driven so the repeat unit keeps a readable size at every breakpoint */
.hero-chain svg {
  width: 100%;
  min-width: 860px;
  height: auto;
}

.pp-bond,
.pp-sub {
  fill: none;
  stroke: var(--blue-500);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.85;
}

.pp-sub {
  stroke-width: 2;
  opacity: 0.65;
}

.pp-nodes circle {
  fill: var(--blue-300);
  opacity: 0.9;
}

.pp-verts circle {
  fill: var(--blue-500);
}

.hero-inner {
  position: relative;
  padding-block: clamp(64px, 12vw, 132px) clamp(40px, 6vw, 64px);
}

.hero-date {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: var(--sp-6);
}

.hero-date .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.6;
}

.hero h1 {
  max-width: 15ch;
  margin-bottom: var(--sp-5);
}

.hero h1 .line {
  display: block;
}

.hero-sub {
  /* max-width: 40ch; */
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.45;
  color: var(--blue-100);
  font-weight: 300;
  margin-bottom: var(--sp-3);
}

.hero-question {
  color: var(--white);
  margin-bottom: var(--sp-7);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
}

/* Facts strip — the day in four numbers */
.hero-facts {
  position: relative;
  border-top: 1px solid rgba(147, 192, 230, 0.22);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.hero-facts li {
  padding: var(--sp-5) 0;
  border-bottom: 1px solid rgba(147, 192, 230, 0.14);
}

.hero-facts li + li {
  border-left: 1px solid rgba(147, 192, 230, 0.14);
  padding-left: var(--sp-4);
}

.hero-facts li:nth-child(3) {
  border-left: 0;
  padding-left: 0;
}

.hero-facts b {
  display: block;
  font-family: var(--font-display);
  font-variation-settings: "wdth" 112;
  font-size: clamp(1.4rem, 3.1vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero-facts span {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.135em;
  text-transform: uppercase;
  color: var(--blue-300);
}

@media (min-width: 760px) {
  .hero-facts {
    grid-template-columns: repeat(4, 1fr);
  }

  .hero-facts li {
    border-bottom: 0;
  }

  .hero-facts li:nth-child(3) {
    border-left: 1px solid rgba(147, 192, 230, 0.14);
    padding-left: var(--sp-4);
  }
}

/* --------------------------------------------------------------------------
   8. Inner page header
   -------------------------------------------------------------------------- */
.page-head {
  position: relative;
  display: grid;
  align-content: center;
  background: var(--navy-900);
  color: var(--white);
  /* Wysokość bloku zadaje min-height, nie padding — inaczej padding dodawałby
     się na wierzchu i każda podstrona miałaby inną wysokość. Padding jest tylko
     zabezpieczeniem, żeby na wąskim ekranie tekst nie dotykał krawędzi. */
  padding-block: var(--sp-6);
  /* Dolny kres 292 px to wysokość, jakiej na wąskim ekranie potrzebuje
     najdłuższy lid (adres hotelu łamie się tam na cztery wiersze). Niżej
     nie da się zejść bez skracania treści, a wtedy nagłówki przestałyby być
     równe. Górny kres 360 px odtwarza wysokość, jaką miała agenda. */
  min-height: clamp(292px, 200px + 11vw, 360px);
  overflow: hidden;
}

.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 480 130' width='480' height='130'%3E%3Cg fill='none' stroke='%23ffffff' stroke-width='2' stroke-opacity='0.14' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M 0 60 L 60 100 L 120 60 L 180 100 L 240 60 L 300 100 L 360 60 L 420 100 L 480 60'/%3E%3Cpath d='M 0 60 L 0 20 M 120 60 L 120 20 M 240 60 L 240 20 M 360 60 L 360 20 M 480 60 L 480 20'/%3E%3C/g%3E%3Cg fill='%23ffffff' fill-opacity='0.16'%3E%3Ccircle cx='0' cy='20' r='6'/%3E%3Ccircle cx='120' cy='20' r='6'/%3E%3Ccircle cx='240' cy='20' r='6'/%3E%3Ccircle cx='360' cy='20' r='6'/%3E%3Ccircle cx='480' cy='20' r='6'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat-x;
  background-position: right -60px bottom -18px;
  background-size: 480px 130px;
  opacity: 0.55;
  mask-image: linear-gradient(90deg, transparent 25%, #000 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 25%, #000 100%);
}

.page-head > * {
  position: relative;
  z-index: 2;
}

.page-head::before {
  z-index: 1;
}

/* Wariant ze zdjęciem: fotografia + płaska granatowa warstwa.
   Kolejność malowania: zdjęcie (tło) → warstwa (::after) → łańcuch (::before) → treść. */
.page-head--photo {
  --photo-overlay: 0.5;
  --photo-y: 50%;
  --photo-filter: none;
  --photo-tone: transparent;
  --photo-blend: normal;
  background-color: var(--navy-900);
  isolation: isolate;
}

/* Zdjęcie leży na ::before, nie na tle samej sekcji. Dzięki temu można je
   przepuścić przez filter — na tle sekcji filter objąłby też tekst.
   Kolejność malowania: kolor tła → zdjęcie (::before) → warstwa (::after) → treść. */
.page-head--photo::before {
  z-index: 0;
  /* Dwie warstwy tła: barwiąca nakładka nad zdjęciem. Tryb `color` bierze
     odcień i nasycenie z nakładki, a jasność ze zdjęcia — to daje duotone,
     czyli równą tonację niezależnie od tego, jakim światłem świecono na sali.
     Domyślnie nakładka jest przezroczysta i blend nic nie robi. */
  background-image: linear-gradient(var(--photo-tone), var(--photo-tone)),
    var(--photo-src);
  background-blend-mode: var(--photo-blend), normal;
  background-repeat: no-repeat, no-repeat;
  /* Pozycja kadru w pionie: procent, nie piksele. Przy background-size: cover
     zapas w pionie zależy od szerokości okna, a wartość procentowa nigdy nie
     wyjedzie za krawędź zdjęcia. Ustawiana per podstrona. */
  background-position: center, center var(--photo-y);
  background-size: cover, cover;
  opacity: 1;
  filter: var(--photo-filter);
  mask-image: none;
  -webkit-mask-image: none;
}

.page-head--photo::after {
  z-index: 1;
}

/* Zdjęcia nagłówków poszczególnych podstron */
.page-head--miejsce {
  /* kadr wycentrowany na budynku, nie na niebie */
  --photo-y: 84%;
  --photo-src: url("../../../../assets/img/miejsce-hero.jpg");
}

.page-head--agenda {
  /* zdjęcie jest już ciemne, więc warstwa może być słabsza */
  --photo-overlay: 0.3;
  --photo-y: 46%;
  --photo-src: url("../../../../assets/img/agenda-hero.jpg");
}

.page-head--prelegenci {
  --photo-overlay: 0.3;
  --photo-y: 44%;
  --photo-src: url("../../../../assets/img/prelegenci-hero.jpg");
  /* Zdjęcie ma ciepłe światło (pomarańczowa kurtyna, żarowe reflektory).
     Blend `color` zamienia jego kolorystykę na jednolity niebieski, zostawiając
     nietkniętą jasność — tonacja wychodzi spójna z pozostałymi podstronami. */
  --photo-tone: #3f6f9f;
  --photo-blend: color;
}

/* Warstwa dolna: płaski granat 50% — spina zdjęcie z paletą strony.
   Warstwa górna: ten sam kierunkowy granat co w hero na stronie głównej —
   przyciemnia lewą stronę pod tekstem, prawą zostawia jasną, żeby zdjęcie
   było widoczne. Bez niej tekst nie spełnia kontrastu WCAG AA (patrz README). */
.page-head--photo::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
      90deg,
      rgba(8, 25, 47, 0.7) 0%,
      rgba(8, 25, 47, 0.58) 55%,
      rgba(8, 25, 47, 0.32) 75%,
      rgba(8, 25, 47, 0.05) 90%,
      rgba(8, 25, 47, 0) 100%
    ),
    rgba(8, 25, 47, var(--photo-overlay));
}

/* Na wąskim ekranie tekst zajmuje całą szerokość, więc gradient poziomy
   nie ma czego osłaniać — przechodzimy na pionowy, od góry. */
@media (max-width: 899px) {
  .page-head--photo::after {
    background: linear-gradient(
        180deg,
        rgba(8, 25, 47, 0.72) 0%,
        rgba(8, 25, 47, 0.6) 62%,
        rgba(8, 25, 47, 0.12) 100%
      ),
      rgba(8, 25, 47, var(--photo-overlay));
  }
}

/* Na zdjęciu błękitne odcienie tekstu mają za mały kontrast: breadcrumb
   spadał do 4,07:1, a lid do 4,26:1 przy 900 px. Biel podnosi oba ponad próg
   bez przygaszania zdjęcia mocniejszą warstwą. */
.page-head--photo .breadcrumb,
.page-head--photo .lede {
  color: var(--white);
}

/* breadcrumb jest flexem — bez tego jego pudełko rozciąga się na całą
   szerokość kontenera, także nad jasną częścią zdjęcia */
.page-head--photo .breadcrumb {
  width: fit-content;
}

.page-head--photo .breadcrumb a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-head h1 {
  max-width: 18ch;
  margin-bottom: var(--sp-4);
}

.page-head .lede {
  max-width: 56ch;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: var(--sp-5);
}

.breadcrumb a {
  color: inherit;
}

.breadcrumb a:hover {
  color: var(--white);
}

/* --------------------------------------------------------------------------
   9. Two-column section head
   -------------------------------------------------------------------------- */
.split {
  display: grid;
  gap: var(--sp-6);
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(40px, 6vw, 96px);
  }

  .split--sticky > :first-child {
    position: sticky;
    top: calc(var(--header-h) + 40px);
    align-self: start;
  }
}

/* --------------------------------------------------------------------------
   10. Theme cards (obszary tematyczne)
   -------------------------------------------------------------------------- */
.card-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.theme-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: clamp(24px, 3.4vw, 38px);
  background: var(--white);
  transition: background-color 0.22s var(--ease);
}

/* Card marker = a pendant node on a stem: the hero's motif at small scale */
.theme-card::before {
  content: "";
  width: 13px;
  height: 34px;
  margin-bottom: calc(-1 * var(--sp-2));
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='13' height='34'%3E%3Cpath d='M6.5 11.5V34' stroke='%23d7e6f4'/%3E%3Ccircle cx='6.5' cy='6.5' r='4.5' fill='%23ffffff' stroke='%234b89c7' stroke-width='2'/%3E%3C/svg%3E")
    no-repeat center;
}

.theme-card:hover {
  background: var(--ice-50);
}

.theme-card:hover::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='13' height='34'%3E%3Cpath d='M6.5 11.5V34' stroke='%2393c0e6'/%3E%3Ccircle cx='6.5' cy='6.5' r='4.5' fill='%234b89c7' stroke='%234b89c7' stroke-width='2'/%3E%3C/svg%3E");
}

.theme-card h3 {
  max-width: 22ch;
}

.theme-card p {
  color: var(--slate);
  font-size: 0.94rem;
  margin: 0;
  flex: 1;
}

.theme-card .link {
  font-size: 0.85rem;
  align-self: flex-start;
}

/* Audience chips */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy-800);
  background: var(--white);
}

.section--navy .chip,
.on-navy .chip {
  border-color: rgba(147, 192, 230, 0.3);
  background: transparent;
  color: var(--white);
}

/* --------------------------------------------------------------------------
   11. Partner band
   -------------------------------------------------------------------------- */
.partner {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  align-items: flex-start;
}

@media (min-width: 760px) {
  .partner {
    flex-direction: row;
    align-items: center;
    gap: var(--sp-6);
  }
}

.partner-logo {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 26px;
}

.partner-logo img {
  width: 220px;
  max-width: 60vw;
}

/* --------------------------------------------------------------------------
   12. Registration form
   -------------------------------------------------------------------------- */
.form-wrap {
  display: grid;
  gap: var(--sp-6);
}

@media (min-width: 980px) {
  .form-wrap {
    grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    gap: clamp(40px, 5vw, 80px);
    align-items: start;
  }
}

.form-card {
  background: var(--white);
  color: var(--ink);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 44px);
}

.field-grid {
  display: grid;
  gap: var(--sp-4);
}

@media (min-width: 560px) {
  .field-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .field--wide {
    grid-column: 1 / -1;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.056em;
  text-transform: uppercase;
  color: var(--navy-800);
}

.field label .req {
  color: var(--blue-600);
}

.field input {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  padding: 13px 14px;
  background: var(--ice-50);
  border: 1px solid var(--line);
  border-bottom: 2px solid var(--line-strong);
  border-radius: var(--radius) var(--radius) 0 0;
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
  width: 100%;
}

.field input::placeholder {
  color: #9aa9ba;
}

.field input:hover {
  border-color: var(--line-strong);
}

.field input:focus {
  outline: none;
  background: var(--white);
  border-color: var(--blue-300);
  border-bottom-color: var(--blue-500);
}

.field input:focus-visible {
  outline: 2px solid var(--blue-500);
  outline-offset: 2px;
}

.field-error {
  display: none;
  font-size: 0.8rem;
  line-height: 1.4;
  color: #b3261e;
}

.field .has-error,
.field[data-invalid="true"] input {
  border-color: #e29c96;
  border-bottom-color: #b3261e;
  background: #fdf6f5;
}

.field[data-invalid="true"] .field-error {
  display: block;
}

.consents {
  display: grid;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--line);
}

.consent {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--slate);
  cursor: pointer;
}

.consent input {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: var(--white);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: border-color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.consent:hover input {
  border-color: var(--blue-500);
}

.consent input::after {
  content: "";
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--white);
  border-bottom: 2px solid var(--white);
  transform: rotate(-45deg) scale(0);
  transition: transform 0.16s var(--ease);
}

.consent input:checked {
  background: var(--blue-500);
  border-color: var(--blue-500);
}

.consent input:checked::after {
  transform: rotate(-45deg) scale(1);
}

.consent .has-error,
.consent[data-invalid="true"] input {
  border-color: #b3261e;
}

.consent .field-error {
  margin-top: 4px;
}

.consent[data-invalid="true"] .field-error {
  display: block;
}

.form-foot {
  margin-top: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.form-note {
  font-size: 0.8rem;
  color: var(--slate);
}

.form-success {
  display: none;
  padding: clamp(24px, 4vw, 44px);
  background: var(--white);
  border-radius: var(--radius);
  border-top: 3px solid var(--blue-500);
}

.form-success h3 {
  margin-bottom: var(--sp-3);
}

.form-success ul {
  display: grid;
  gap: 10px;
  margin-top: var(--sp-4);
}

.form-success li {
  position: relative;
  padding-left: 22px;
  font-size: 0.92rem;
  color: var(--slate);
}

.form-success li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue-500);
}

[data-state="sent"] .form-card {
  display: none;
}

[data-state="sent"] .form-success {
  display: block;
}

.form-aside dl {
  margin: var(--sp-5) 0 0;
  display: grid;
  gap: 1px;
  background: rgba(147, 192, 230, 0.2);
  border-block: 1px solid rgba(147, 192, 230, 0.2);
}

.form-aside div {
  background: var(--navy-900);
  padding: 14px 0;
  display: flex;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.form-aside dt {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-300);
}

.form-aside dd {
  margin: 0;
  font-weight: 600;
  text-align: right;
}

/* --------------------------------------------------------------------------
   13. Agenda — the chain as a time axis
   -------------------------------------------------------------------------- */
.agenda-note {
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-5);
  background: var(--ice-50);
  border-left: 3px solid var(--blue-500);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: var(--sp-7);
}

.agenda-note p {
  color: var(--navy-800);
  font-size: 1.05rem;
  margin: 0;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-bottom: var(--sp-6);
}

.filter {
  padding: 9px 17px;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy-800);
  background: var(--white);
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.filter:hover {
  border-color: var(--blue-500);
  color: var(--blue-600);
}

.filter[aria-checked="true"] {
  background: var(--navy-900);
  border-color: var(--navy-900);
  color: var(--white);
}

.agenda {
  position: relative;
}

.agenda-block {
  margin-block: var(--sp-7) var(--sp-5);
  padding-left: var(--track-pad, 0);
}

/* Tytuł bloku ma iść w jednej linii — bez ograniczenia szerokości mieści się
   na całej kolumnie od ~700 px w górę. Poniżej tej szerokości nie da się go
   utrzymać w jednej linii bez zejścia z krojem pod próg 0,8rem, więc tam
   łamie się na dwie linie (wcześniej łamał się na trzy). */
.agenda-block h2 {
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  font-variation-settings: "wdth" 104;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.agenda-block .eyebrow {
  margin-bottom: 10px;
}

.slot {
  position: relative;
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: var(--sp-4);
  padding: var(--sp-5) 0;
  border-top: 1px solid var(--line);
  transition: opacity 0.3s var(--ease);
}

@media (min-width: 720px) {
  .slot {
    grid-template-columns: 104px 26px 1fr;
    gap: var(--sp-4);
  }
}

.slot:last-child {
  border-bottom: 1px solid var(--line);
}

.slot-time {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--navy-800);
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
}

.slot-time small {
  display: block;
  font-size: 0.8rem;
  color: var(--slate);
  margin-top: 3px;
  letter-spacing: 0.035em;
}

/* Spine: node + segment whose length tracks the session's duration */
.slot-rail {
  display: none;
  position: relative;
}

@media (min-width: 720px) {
  .slot-rail {
    display: block;
  }
}

.slot-rail::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 6px;
  width: 11px;
  height: 11px;
  margin-left: -5.5px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--blue-500);
  z-index: 1;
  transition: background-color 0.2s var(--ease), transform 0.2s var(--ease);
}

/* continuous backbone, bridging the gap between consecutive slots */
/* .slot-rail::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 17px;
  bottom: calc(-2 * var(--sp-5) - 6px);
  width: 1px;
  margin-left: -0.5px;
  background: var(--line-strong);
} */

/* the spine stops where the day's sequence stops */
.slot:last-child .slot-rail::after,
.slot:has(+ .agenda-block) .slot-rail::after {
  bottom: 0;
}

/* the pendant measure: its length is the session's duration */
.slot-rail .dur {
  position: absolute;
  left: 50%;
  top: 19px;
  width: 4px;
  margin-left: -2px;
  border-radius: 2px;
  background: var(--blue-500);
  height: min(max(6px, calc(var(--dur, 20) * 1.15px)), calc(100% - 26px));
  transition: background-color 0.2s var(--ease);
}

.slot:hover .slot-rail::before {
  background: var(--blue-500);
  transform: scale(1.15);
}

.slot:hover .slot-rail .dur {
  background: var(--navy-700);
}

.slot--break .slot-rail::before {
  border-style: dashed;
  border-color: var(--line-strong);
}

.slot--break .slot-rail .dur {
  background: repeating-linear-gradient(
    var(--line-strong) 0 4px,
    transparent 4px 8px
  );
}

.slot--panel .slot-rail .dur {
  background: var(--navy-900);
}

.slot-body h3 {
  font-size: clamp(1.05rem, 1.75vw, 1.24rem);
  font-variation-settings: "wdth" 104;
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: -0.012em;
  max-width: 52ch;
}

.slot-accordion {
  margin-top: 12px;
}

.slot-accordion summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-600);
  transition: color 0.2s var(--ease);
}

.slot-accordion summary::-webkit-details-marker {
  display: none;
}

.slot-accordion summary::before {
  content: "▸";
  display: inline-block;
  font-size: 0.85rem;
  line-height: 1;
  color: inherit;
  transition: transform 0.2s var(--ease);
}

.slot-accordion[open] summary::before {
  content: "▾";
}

.slot-accordion[open] summary {
  color: var(--navy-700);
}

.slot-accordion summary:hover,
.slot-accordion summary:focus-visible {
  color: var(--navy-700);
}

.slot-desc {
  margin: 10px 0 0;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--slate);
}

.slot-people {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  font-size: 0.92rem;
  color: var(--slate);
  flex-direction: column;
  align-items: start;
}

.slot-people-item {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 10px;
}

.org {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--blue-600);
  background: var(--blue-100);
  padding: 3px 8px;
  border-radius: 2px;
}

.slot--break {
  background: var(--ice-50);
}

.slot--break .slot-body h3 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--slate);
  letter-spacing: 0.02em;
}

.slot--panel .slot-body h3 {
  color: var(--navy-700);
}

.slot--panel .org {
  background: var(--navy-900);
  color: var(--white);
}

.slot[hidden] {
  display: none;
}

.agenda-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-5);
  margin-top: var(--sp-6);
  font-size: 0.8rem;
  color: var(--slate);
}

.agenda-legend span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.agenda-legend i {
  width: 4px;
  height: 22px;
  border-radius: 2px;
  background: var(--blue-500);
  flex: none;
}

/* --------------------------------------------------------------------------
   14. Speakers
   -------------------------------------------------------------------------- */
.speaker-grid {
  display: grid;
  gap: var(--sp-6);
}

@media (min-width: 620px) {
  .speaker-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 980px) {
  .speaker-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.speaker {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-3);
  padding: var(--sp-5);
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 2px solid var(--navy-900);
  border-radius: 0 0 var(--radius) var(--radius);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}

.speaker:hover {
  border-color: var(--line-strong);
  border-top-color: var(--blue-500);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -18px rgba(8, 25, 47, 0.45);
}

/* --- Ramka zdjęcia prelegenta ---------------------------------------------
   Zdjęcia od klienta będą miały różne wymiary i proporcje. Ramka narzuca
   każdemu identyczny kadr — nic nie trzeba przygotowywać w grafice:

     aspect-ratio      stała proporcja kadru, więc wszystkie karty są równe
     object-fit: cover zdjęcie wypełnia kadr, nadmiar zostaje obcięty
     overflow: hidden  nic nie wychodzi poza ramkę
     --photo-focus     punkt kadrowania, do korekty pojedynczego zdjęcia
     --photo-tint      warstwa ujednolicająca kolor i naświetlenie

   Tło gradientowe jest identyczne we wszystkich kartach: widać je pod
   sylwetką-placeholderem i wokół zdjęć z wyciętym tłem (PNG).
   Sylwetka świadomie nie przedstawia konkretnej osoby.                       */
.speaker-photo {
  --photo-focus: 50% 20%;
  --photo-tint: 0.1;
  position: relative;
  /* 58% pola treści karty = połowa szerokości, jaką kadr miał na całą kartę;
     proporcja jest stała, więc wysokość spada o tyle samo */
  width: 58%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: radial-gradient(
    118% 88% at 50% 10%,
    #ffffff 0%,
    #eaf2fb 40%,
    #d3e3f4 78%,
    #c6dcf1 100%
  );
}

/* prawdziwe zdjęcie o dowolnym rozmiarze wypełnia dokładnie ten sam kadr */
.speaker-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--photo-focus);
  /* zrównanie nasycenia między zdjęciami z różnych sesji zdjęciowych */
  filter: saturate(0.94);
}

/* warstwa spinająca zdjęcia o różnym kolorze i naświetleniu w jeden zestaw;
   pojawia się tylko tam, gdzie jest już prawdziwe zdjęcie */
.speaker-photo:has(img)::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(75, 137, 199, calc(var(--photo-tint) * 0.55)) 0%,
    rgba(8, 25, 47, var(--photo-tint)) 100%
  );
}

.speaker-photo svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.speaker-photo .figure {
  fill: #2e6dad;
  opacity: 0.17;
  transition: opacity 0.2s var(--ease);
}

.speaker:hover .speaker-photo .figure {
  opacity: 0.24;
}

/* na kartach ze zdjęciem kółko z inicjałami jest już zbędne */
.speaker--photo .speaker-node {
  display: none;
}

.speaker-node {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--blue-500);
  display: grid;
  place-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.035em;
  color: var(--navy-800);
  background: var(--ice-50);
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.speaker:hover .speaker-node {
  background: var(--blue-500);
  color: var(--white);
}

.speaker h3 {
  font-size: 1.18rem;
  font-variation-settings: "wdth" 106;
}

.speaker-role {
  margin: 0;
  padding-top: var(--sp-3);
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--navy-700);
}

.speaker-bio {
  margin: 0;
  font-size: 0.9rem;
  color: var(--slate);
}

.speaker--tbd {
  border-style: dashed;
  border-color: var(--line-strong);
  border-top: 2px dashed var(--line-strong);
  background: var(--ice-50);
}

.speaker--tbd .speaker-node {
  border-style: dashed;
  border-color: var(--line-strong);
  color: var(--slate);
  background: transparent;
}

.speaker--tbd h3 {
  color: var(--slate);
}

.speaker[hidden] {
  display: none;
}

.speaker-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

/* --------------------------------------------------------------------------
   15. Venue — distance ladder
   -------------------------------------------------------------------------- */
/* przyciski skrótów przeniesione z nagłówka, żeby wszystkie nagłówki
   podstron miały jednakową wysokość */
.venue-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin: 0 0 var(--sp-6);
}

.venue-facts {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

@media (min-width: 720px) {
  .venue-facts {
    grid-template-columns: repeat(3, 1fr);
  }
}

.venue-fact {
  background: var(--white);
  padding: clamp(20px, 3vw, 32px);
}

.venue-fact dt {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 10px;
}

.venue-fact dd {
  margin: 0;
  font-family: var(--font-display);
  font-variation-settings: "wdth" 108;
  font-size: clamp(1.1rem, 2.05vw, 1.36rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.25;
  color: var(--navy-900);
}

.venue-fact dd small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--slate);
  margin-top: 6px;
}

/* The ladder: each origin sits on a distance axis (√km scale) */
.ladder {
  position: relative;
  margin-block: var(--sp-6);
  padding-left: 26px;
}

.ladder::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 30px;
  width: 2px;
  background: linear-gradient(var(--navy-900) 0%, var(--blue-300) 100%);
}

.ladder-origin {
  position: relative;
  padding-bottom: var(--sp-2);
}

.ladder-origin::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--navy-900);
  border: 2px solid var(--navy-900);
}

.ladder-origin h3 {
  font-size: 1.14rem;
  font-variation-settings: "wdth" 106;
}

.ladder-stop {
  position: relative;
  border-bottom: 1px solid var(--line);
  padding-top: var(--lead, 20px);
}

.ladder-stop summary {
  position: relative;
  display: grid;
  gap: 10px var(--sp-5);
  list-style: none;
  padding: var(--sp-4) var(--sp-4) var(--sp-4) var(--sp-4);
  cursor: pointer;
  transition: background-color 0.2s var(--ease);
}

@media (min-width: 940px) {
  .ladder-stop summary {
    grid-template-columns: minmax(210px, 0.85fr) minmax(0, 1.25fr) auto;
    align-items: center;
  }
}

.ladder-stop summary::-webkit-details-marker {
  display: none;
}

.ladder-stop summary::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--blue-500);
  transition: background-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.ladder-stop summary:hover {
  background: var(--ice-50);
}

.ladder-stop summary:hover::before,
.ladder-stop[open] summary::before {
  background: var(--blue-500);
  transform: scale(1.15);
}

.ladder-stop h3 {
  font-size: 1.14rem;
  font-variation-settings: "wdth" 106;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
}

.ladder-km {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--blue-600);
  background: var(--blue-100);
  padding: 2px 8px;
  border-radius: 2px;
  flex: none;
}

.ladder-lines {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.line-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 3px 9px;
  border-radius: 2px;
  background: var(--navy-900);
  color: var(--white);
}

.line-badge--rail {
  background: var(--blue-600);
}

.line-badge--road {
  background: transparent;
  color: var(--navy-800);
  border: 1px solid var(--line-strong);
}

.ladder-detail {
  margin: 0 0 var(--sp-5) var(--sp-4);
  padding-left: var(--sp-4);
  border-left: 2px solid var(--blue-100);
  font-size: 0.96rem;
  color: var(--slate);
  max-width: 68ch;
  animation: fade-up 0.28s var(--ease);
}

.ladder-toggle-hint {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-600);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-self: start;
  white-space: nowrap;
}

@media (min-width: 940px) {
  .ladder-toggle-hint {
    justify-self: end;
  }
}

.ladder-toggle-hint::after {
  content: "+";
  font-size: 0.95rem;
  line-height: 1;
}

.ladder-stop[open] summary .ladder-toggle-hint::after {
  content: "–";
}

.ladder-scale {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--slate);
  margin-top: var(--sp-4);
}

/* Hotel CTA band */
.cta-band {
  display: grid;
  gap: var(--sp-5);
  align-items: center;
}

@media (min-width: 860px) {
  .cta-band {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--sp-8);
  }
}

.discount {
  margin: 0 0 var(--sp-4);
  font-family: var(--font-display);
  font-variation-settings: "wdth" 122;
  font-size: clamp(3.4rem, 10vw, 6rem);
  font-weight: 620;
  letter-spacing: -0.045em;
  line-height: 0.85;
  color: var(--white);
}

.discount span {
  font-size: 0.42em;
  vertical-align: super;
  letter-spacing: -0.02em;
}

/* the offer: number, action and the small print in one column */
.offer {
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid rgba(147, 192, 230, 0.28);
  border-radius: var(--radius);
  background: rgba(147, 192, 230, 0.05);
}

.offer .meta {
  color: var(--blue-100);
}

.offer .meta + .meta {
  margin-top: var(--sp-3);
}

/* --------------------------------------------------------------------------
   16. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--navy-900);
  color: var(--white);
  padding-block: var(--sp-8)
    calc(var(--sp-5) + env(safe-area-inset-bottom, 0px));
}

.footer-grid {
  display: grid;
  gap: var(--sp-6);
  padding-bottom: var(--sp-7);
}

@media (min-width: 820px) {
  .footer-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 3fr) minmax(0, 4fr);
    gap: var(--sp-7);
  }
}

.footer-grid h2 {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-weight: 500;
  font-variation-settings: normal;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: var(--sp-4);
}

.footer-lockup {
  font-family: var(--font-display);
  font-variation-settings: "wdth" 114;
  /* bez podwyżki: przy 2,1rem logotyp łamał się na dwie linie w kolumnie stopki */
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  font-weight: 620;
  letter-spacing: -0.028em;
  line-height: 1;
  margin-bottom: var(--sp-4);
}

.footer-meta {
  color: var(--blue-100);
  font-size: 1rem;
  line-height: 1.7;
}

.footer-nav li + li {
  margin-top: 10px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.86);
  font-size: 1rem;
  transition: color 0.18s var(--ease);
}

.footer-nav a:hover {
  color: var(--blue-300);
}

.footer-partner {
  background: var(--white);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: inline-block;
}

.footer-partner img {
  width: 190px;
}

.footer-bottom {
  border-top: 1px solid rgba(147, 192, 230, 0.18);
  padding-top: var(--sp-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-5);
  justify-content: space-between;
  font-size: 0.85rem;
  color: rgba(215, 230, 244, 0.7);
}

.footer-bottom a {
  color: inherit;
}

.footer-bottom a:hover {
  color: var(--white);
}

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   17. Motion
   -------------------------------------------------------------------------- */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes node-in {
  from {
    opacity: 0;
    transform: scale(0.2);
  }
}

/* One orchestrated page-load in the hero: the chain draws, then the words land */
.hero-chain .pp-bond,
.hero-chain .pp-sub {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: draw 2.2s var(--ease) forwards;
}

.hero-chain .pp-sub {
  animation-delay: 0.5s;
  animation-duration: 1.4s;
}

.hero-chain circle {
  opacity: 0;
  animation: node-in 0.5s var(--ease) forwards;
  animation-delay: calc(0.7s + var(--i, 0) * 0.035s);
  transform-origin: center;
  transform-box: fill-box;
}

.hero-chain .pp-nodes circle {
  animation-name: node-in;
}

[data-reveal] {
  opacity: 0;
}

[data-reveal].is-in {
  animation: fade-up 0.6s var(--ease) forwards;
  animation-delay: calc(var(--d, 0) * 70ms);
}

.hero [data-reveal].is-in {
  animation-duration: 0.75s;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal] {
    opacity: 1;
  }

  .hero-chain .pp-bond,
  .hero-chain .pp-sub {
    stroke-dashoffset: 0;
  }

  .hero-chain circle {
    opacity: 1;
  }

  .btn:hover,
  .speaker:hover {
    transform: none;
  }
}

/* Fallback for browsers without JS: never leave content invisible */
.no-js [data-reveal] {
  opacity: 1;
  animation: none;
}

/* Custom */
.no-text-wrap {
  text-wrap: auto;
}