/* ============================================================
   kurniki.online — strona „Jak korzystać z Kurników na co dzień”
   Warstwa na css/style.css: tokeny, nawigacja, przyciski, stopka.
   Wszystkie klasy z przedrostkiem .jz- .

   Instrukcja to nagranie prawdziwej aplikacji (konto pokazowe),
   pocięte na cztery klipy w img/jak-zaczac/. Strona tylko je
   odtwarza i przełącza kroki (js/jak-zaczac.js). Nagranie
   odświeża skrypt jak-zaczac/nagraj.py.
   ============================================================ */

:root {
  --jz-w: 960px;
  --jz-ease: cubic-bezier(0.23, 1, 0.32, 1);
}

.jz-hero { padding-block: clamp(2.5rem, 7vh, 4.5rem) clamp(3rem, 8vh, 5rem); }
.jz-hero__text { max-width: 720px; }

.jz-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-700);
}
.jz-kicker::before {
  content: "";
  width: 1.6rem;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-500);
}
.jz-h1 {
  margin-top: 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.6vw, 3.1rem);
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1.05;
  text-wrap: balance;
}
.jz-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.6vw, 2.3rem);
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.1;
}
.jz-lead {
  margin-top: 1rem;
  font-size: 1.08rem;
  line-height: 1.6;
  color: var(--stone-600);
  max-width: 62ch;
}


/* ---------- odtwarzacz ---------- */
.jz-player { margin-top: clamp(1.75rem, 4vh, 2.75rem); }

/* Ramka okna przeglądarki wokół nagrania. Proporcje nagrania: 1280 × 800. */
.jz-frame {
  max-width: var(--jz-w);
  margin-inline: auto;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--stone-200);
  box-shadow: var(--shadow-lifted);
  overflow: hidden;
}
.jz-frame__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding-inline: 14px;
  border-bottom: 1px solid var(--stone-200);
  background: var(--stone-50);
}
.jz-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--stone-300); }
.jz-url {
  margin-left: 12px;
  padding: 3px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--stone-200);
  font-size: 12px;
  color: var(--stone-500);
}
.jz-screen {
  position: relative;
  aspect-ratio: 1280 / 800;
  background: var(--stone-50);
}
.jz-screen video,
.jz-screen img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* Wariant telefoniczny: nagranie 390 × 844, bez paska przeglądarki. */
.jz-player.is-tel .jz-frame {
  max-width: min(340px, 100%);
  border: 8px solid var(--stone-900);
  border-radius: 34px;
}
.jz-player.is-tel .jz-frame__bar { display: none; }
.jz-player.is-tel .jz-screen { aspect-ratio: 390 / 844; }

/* Bez obsługi WebM zostaje plakat kroku: ten sam ekran, tylko nieruchomy. */
.jz-screen img { opacity: 0; transition: opacity 200ms ease; }
.jz-player.is-still .jz-screen img { opacity: 1; }
.jz-player.is-still .jz-screen video { visibility: hidden; }

/* ---------- sterowanie ---------- */
.jz-controls { max-width: var(--jz-w); margin: 18px auto 0; }
.jz-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 0;
  margin: 0;
}
.jz-steps button {
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
  color: var(--stone-500);
  font: inherit;
  font-size: 0.86rem;
}
.jz-steps button:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 4px; border-radius: 4px; }
.jz-steps i {
  display: block;
  height: 4px;
  border-radius: 999px;
  background: var(--stone-200);
  overflow: hidden;
  margin-bottom: 8px;
}
.jz-steps i b {
  display: block;
  height: 100%;
  background: var(--brand-600);
  transform-origin: 0 50%;
  transform: scaleX(0);
}
.jz-steps button[aria-current="step"] { color: var(--stone-900); font-weight: 600; }
.jz-controls__row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
}
.jz-caption { color: var(--stone-600); line-height: 1.55; max-width: 60ch; min-height: 3.1em; }
.jz-buttons { display: flex; gap: 8px; flex-shrink: 0; }
.jz-ctl {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--stone-300);
  background: #fff;
  color: var(--stone-700);
  font-size: 15px;
  cursor: pointer;
  transition: transform 160ms var(--jz-ease), background-color 200ms ease;
}
.jz-ctl:active { transform: scale(0.95); }
.jz-ctl:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 2px; }
.jz-ctl--play { background: var(--brand-600); border-color: var(--brand-600); color: #fff; }
@media (hover: hover) and (pointer: fine) {
  .jz-ctl:hover { background: var(--stone-50); }
  .jz-ctl--play:hover { background: var(--brand-700); }
}

/* ---------- krok po kroku ---------- */
.jz-section { padding-block: clamp(3rem, 9vh, 5.5rem); }
.jz-list {
  list-style: none;
  counter-reset: jz;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.jz-list li {
  counter-increment: jz;
  position: relative;
  padding: 1.25rem 1.4rem 1.25rem 4rem;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--stone-200);
  box-shadow: var(--shadow-soft);
}
.jz-list li::before {
  content: counter(jz);
  position: absolute;
  left: 1.25rem;
  top: 1.2rem;
  width: 1.85rem;
  height: 1.85rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--brand-100);
  color: var(--brand-800);
  font-family: var(--font-display);
  font-weight: 650;
}
.jz-list h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 650; }
.jz-list p { margin-top: 0.4rem; color: var(--stone-600); line-height: 1.6; }
.jz-list a { display: inline-block; margin-top: 0.6rem; font-weight: 600; color: var(--brand-700); }

.jz-final { background: var(--brand-50); border-top: 1px solid var(--brand-100); text-align: center; }
.jz-final__inner p { margin-top: 0.75rem; color: var(--stone-600); }
.jz-final__ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; margin-top: 1.5rem; }

@media (max-width: 640px) {
  .jz-steps span { font-size: 0.78rem; }
  .jz-controls__row { flex-direction: column; }
}

/* Ograniczony ruch: nagranie nie startuje samo, kroki przełącza się ręcznie. */
@media (prefers-reduced-motion: reduce) {
  .jz-ctl { transition: none; }
}