/* ============================================================
   LAYOUT — reset, scroll-snap, szkielet kart
   ============================================================ */

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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;              /* przewija .scroll, nie body */
}

/* --- Kontener przewijania: TU żyje scroll-snap ------------- */
.scroll {
  height: 100dvh;
  overflow-y: scroll;
  scroll-snap-type: y mandatory;
  overscroll-behavior-y: contain;   /* brak "chain scroll" do rodzica */
  scroll-behavior: smooth;
  scrollbar-width: none;            /* Firefox */
}
.scroll::-webkit-scrollbar { display: none; }   /* WebKit */

/* --- Karta = pełny ekran ---------------------------------- */
.card {
  position: relative;
  min-height: 100dvh;
  scroll-snap-align: start;
  scroll-snap-stop: always;         /* jeden gest = jedna karta */
  display: grid;
  place-items: center;
  padding: var(--pad-card);
  overflow: hidden;
}

.card__inner {
  width: 100%;
  max-width: var(--maxw);
}

/* Naprzemienne tło kart, żeby przejścia były widoczne w Etapie 1.
   W kolejnych etapach każda karta dostanie własną warstwę wizualną. */
.card:nth-child(odd)  { background: var(--bg); }
.card:nth-child(even) { background: var(--bg-elev); }

/* --- Dostępność: widoczny focus ---------------------------- */
:focus-visible {
  outline: 2px solid var(--accent-eng);
  outline-offset: 3px;
}

/* ============================================================
   KROPKI NAWIGACYJNE + PIERŚCIEŃ POSTĘPU (Etap 9) — budowane w js/dots.js
   ============================================================ */

.dots {
  position: fixed;
  right: clamp(0.6rem, 1.6vw, 1.4rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.dots__dot {
  position: relative;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.dots__core {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-faint);
  transition: background-color 0.25s ease, transform 0.25s ease;
}
.dots__dot:hover .dots__core { background: var(--text-dim); }
.dots__dot.is-active .dots__core { background: var(--accent-hot); transform: scale(1.2); }

.dots__ring {
  position: absolute;
  inset: 0;
  transform: rotate(-90deg);   /* start pierścienia u góry */
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.dots__dot.is-active .dots__ring { opacity: 1; }
.dots__ring-track { fill: none; stroke: var(--line); stroke-width: 3; }
.dots__ring-fill { fill: none; stroke: var(--accent-hot); stroke-width: 3; stroke-linecap: round; }

.dots__label {
  position: absolute;
  right: calc(100% + 0.55rem);
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--text);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 0.2rem 0.55rem;
  border-radius: 0.35rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.dots__dot:hover .dots__label,
.dots__dot:focus-visible .dots__label { opacity: 1; }

/* --- Link „przejdź do wyceny" --- */
.quicklink {
  position: fixed;
  left: 50%;
  bottom: clamp(0.75rem, 2vh, 1.5rem);
  transform: translateX(-50%);
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transition: opacity 0.3s ease, transform 0.3s ease, border-color 0.2s ease, color 0.2s ease;
}
.quicklink:hover { border-color: var(--accent-hot); color: #fff; }
.quicklink.is-hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(10px);
  pointer-events: none;
}

/* Pasek postępu u góry — na mobile zastępuje kropki (domyślnie ukryty). */
.nav-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 45;
  background: var(--line-soft);
  display: none;
}
.nav-progress__fill {
  display: block;
  height: 100%;
  width: 100%;
  transform-origin: left;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--accent-hot), var(--accent-hot-2));
}

@media (max-width: 640px) {
  .dots { display: none; }            /* kropki nakładałyby się na treść na wąskich ekranach */
  .nav-progress { display: block; }   /* zamiast kropek: pasek postępu u góry */
  .quicklink { font-size: 0.85rem; padding: 0.5rem 0.95rem; }
}

@media (prefers-reduced-motion: reduce) {
  .quicklink.is-hidden { transform: translateX(-50%); }
}