/* Fader Bridge — wspólne style strony sklepu. Marka: Soak Up Sound (grafit / biel złamana / kobalt, Anton) */

:root {
  color-scheme: dark;
  --bg: #0F1214;
  --surface: #161A1D;
  --panel: #1D2226;
  --ink: #EEF0EA;
  --muted: #9AA19D;
  --line: #2A3034;
  --accent: #4871FD;
  --accent-ink: #0F1214;
  --meter: #4cc06f;
  --amber: #e3b43a;
  --focus: #EEF0EA;

  --f-display: "Anton", Impact, "Haettenschweiler", "Arial Narrow", sans-serif;
  --f-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --step--1: 0.8125rem;
  --step-0: 1rem;
  --step-1: 1.1875rem;
  --step-2: 1.5rem;
  --step-3: 2.125rem;
  --step-4: clamp(2.5rem, 6vw, 4.25rem);

  --wrap: 72rem;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 6px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 var(--step-0)/1.6 var(--f-body);
}

img, :not(svg) > svg { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 {
  font-family: var(--f-display);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: 0.01em;
  text-wrap: balance;
  margin: 0;
}
h1 { font-size: var(--step-4); text-transform: uppercase; }
h2 { font-size: var(--step-3); text-transform: uppercase; }
h3 { font: 600 var(--step-1)/1.25 var(--f-body); letter-spacing: 0; }
p { margin: 0; }

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.label {
  font: 500 var(--step--1)/1.3 var(--f-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- nagłówek ---------- */
.top {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.top .wrap {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 3.5rem;
}
.brand {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
}
.brand:hover { color: var(--ink); }
.brand-logo { display: block; height: 1.5rem; width: auto; }
.brand-product {
  font: 400 1.25rem/1 var(--f-display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding-left: 0.75rem;
  border-left: 1px solid var(--line);
}
@media (max-width: 760px) { .brand-logo { height: 2.25rem; } }
.nav { display: flex; gap: 1.25rem; margin-left: auto; font-size: 0.9375rem; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--ink); }
@media (max-width: 760px) { .nav { display: none; } .top .btn { margin-left: auto; } }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font: 600 1rem/1 var(--f-body);
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  border: 0;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { color: var(--accent-ink); filter: brightness(1.08); }
.btn-sm { padding: 0.55rem 0.9rem; font-size: 0.9375rem; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
}
.btn-ghost:hover { color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); filter: none; }

/* ---------- sekcje ---------- */
section { padding-block: clamp(3rem, 8vw, 5.5rem); }
section + section { border-top: 1px solid var(--line); }
.section-head { display: grid; gap: 0.75rem; margin-bottom: 2.25rem; max-width: 44rem; }
.section-head p { color: var(--muted); font-size: var(--step-1); }

/* ---------- hero ---------- */
.hero { padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(3rem, 7vw, 5rem); }
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; } }
.hero-copy { display: grid; gap: 1.5rem; }
.hero h1 .dim { color: var(--muted); }
.hero h1 { font-size: clamp(2.5rem, 5.4vw, 4rem); text-wrap: pretty; }
.lede { font-size: var(--step-1); max-width: 36rem; }
.buy-row { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; }
.price {
  font: 400 var(--step-3)/1 var(--f-display);
  font-variant-numeric: tabular-nums;
}
.price small { font: 400 var(--step--1)/1.3 var(--f-body); color: var(--muted); display: block; margin-top: 0.3rem; }
.fine { font-size: var(--step--1); color: var(--muted); }

.device-stage {
  display: grid;
  place-items: center;
  padding: clamp(1rem, 3vw, 2rem);
}
.device-stage > svg { width: min(100%, 340px); filter: drop-shadow(0 24px 30px rgb(0 0 0 / 0.28)); }

/* ---------- urządzenie w 3D (ruch.js obraca, bez JS stoi pod kątem) ---------- */
.dev3d {
  --w: clamp(180px, 24vw, 270px);
  --h: calc(var(--w) * 1.78);   /* 81 / 45,5 mm */
  --d: calc(var(--w) * 0.44);   /* głębokość ok. 20 mm */
  --r: calc(var(--w) * 0.057);
  position: relative;
  width: var(--w);
  height: var(--h);
  margin: calc(var(--d) * 0.45) auto;
  perspective: 1300px;
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  border-radius: var(--r);
}
.dev3d.is-drag { cursor: grabbing; }
.dev3d__box { position: absolute; inset: 0; transform-style: preserve-3d; transform: rotateX(10deg) rotateY(-24deg); }
.dev3d__face { position: absolute; inset: 0; border-radius: var(--r); overflow: hidden; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.dev3d__front { transform: translateZ(calc(var(--d) / 2)); }
.dev3d__front > svg { display: block; width: 100%; height: 100%; }
.dev3d__back {
  transform: rotateY(180deg) translateZ(calc(var(--d) / 2));
  background: repeating-linear-gradient(45deg, rgb(255 255 255 / 0.035) 0 1px, transparent 1px 3px), linear-gradient(135deg, #1b1d1f, #0d0e0f);
  border: 1px solid #26292c;
}
.dev3d__side { position: absolute; }
.dev3d__l, .dev3d__r {
  width: var(--d); height: calc(var(--h) - 2 * var(--r)); top: var(--r); left: calc((var(--w) - var(--d)) / 2);
  background:
    linear-gradient(90deg, transparent 13%, #070808 13% 14.5%, transparent 14.5%),
    repeating-linear-gradient(90deg, rgb(255 255 255 / 0.05) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, #1c1e20, #121314);
}
.dev3d__l { transform: rotateY(-90deg) translateZ(calc(var(--w) / 2)); }
.dev3d__r { transform: rotateY(90deg) translateZ(calc(var(--w) / 2)); }
.dev3d__t, .dev3d__b {
  height: var(--d); width: calc(var(--w) - 2 * var(--r)); left: var(--r); top: calc((var(--h) - var(--d)) / 2);
  background:
    linear-gradient(180deg, transparent 13%, #070808 13% 14.5%, transparent 14.5%),
    repeating-linear-gradient(180deg, rgb(255 255 255 / 0.05) 0 1px, transparent 1px 3px),
    linear-gradient(90deg, #17181a, #222427 50%, #131415);
}
.dev3d__t { transform: rotateX(90deg) translateZ(calc(var(--h) / 2)); }
.dev3d__b { transform: rotateX(-90deg) translateZ(calc(var(--h) / 2)); }
.dev3d__usb {   /* gniazdo USB-C na lewym boku */
  position: absolute; left: 50%; top: 80%; width: 18%; height: 12%; transform: translateX(-50%);
  border-radius: 999px; background: #030303; box-shadow: inset 0 0 0 2px #1d1f22, inset 0 2px 4px #000;
}
.dev3d__shadow {
  position: absolute; left: 6%; right: 6%; bottom: calc(var(--d) * -0.55); height: 34px;
  background: radial-gradient(closest-side, rgb(0 0 0 / 0.65), transparent); pointer-events: none;
}
.dev3d__hint { margin-top: 0.25rem; font: 500 var(--step--1) var(--f-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); text-align: center; }

/* ---------- fadery jadą same ---------- */
.faders { margin: 2rem 0 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.faders canvas { display: block; width: 100%; height: 240px; }
.faders figcaption { padding: 0.75rem 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: var(--step--1); }

/* ---------- pokrętło z miękkim przejęciem ---------- */
.knob-demo { display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem 2.5rem; margin: 0 0 2.25rem; padding: 1.25rem 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.knob { width: 170px; height: 170px; flex: none; touch-action: none; cursor: ns-resize; border-radius: 50%; }
.knob svg { display: block; width: 100%; height: 100%; }
.knob-txt { display: grid; gap: 0.3rem; min-width: 0; flex: 1 1 16rem; }
.knob-v { font: 400 3.25rem/1 var(--f-display); font-variant-numeric: tabular-nums; }
.knob-v::after { content: " dB"; font: 500 var(--step--1) var(--f-mono); color: var(--accent); letter-spacing: 0.08em; }
.knob-s { font: 500 var(--step--1) var(--f-mono); color: var(--amber); }
.knob.is-caught + .knob-txt .knob-s { color: var(--accent); }
.knob-help { color: var(--muted); font-size: var(--step--1); max-width: 52ch; }

/* ---------- przycisk z magnesem ---------- */
.btn-mag { position: relative; overflow: hidden; isolation: isolate; transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), color 0.3s; }
.btn-mag::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--ink); transform: translateY(101%); transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1); }
.btn-mag:hover { color: var(--bg); filter: none; }
.btn-mag:hover::before { transform: none; }
.btn-mag__l { position: relative; display: inline-block; transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1); }
.btn-mag__bars { position: absolute; inset: 0; z-index: -1; display: flex; align-items: flex-end; gap: 2px; padding: 0 4px; opacity: 0.3; pointer-events: none; }
.btn-mag__bars i { flex: 1; height: 20%; background: var(--bg); }

/* ---------- nagłówki wkręcają się (słowa owija ruch.js) ---------- */
.twist { perspective: 800px; }
.twist .tw { display: inline-block; }

@media (prefers-reduced-motion: no-preference) {
  .btn-mag__bars i { animation: fb-bar 0.9s ease-in-out infinite alternate; animation-delay: calc(var(--i) * -130ms); }
  .twist .tw {
    transform-origin: 50% 0; transform: rotateX(80deg) translateY(0.3em); opacity: 0; filter: blur(6px);
    transition: transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.6s, filter 0.6s;
    transition-delay: calc(var(--i) * 90ms);
  }
  .twist.is-in .tw { transform: none; opacity: 1; filter: none; }
  /* sygnał płynie po torze */
  .chain-link::before {
    background: repeating-linear-gradient(90deg, var(--accent) 0 6px, transparent 6px 14px);
    background-size: 14px 2px; animation: fb-flow-r 0.7s linear infinite;
  }
  .chain-link::after {
    content: ""; display: block; width: 100%; height: 2px; margin-top: 0.35rem;
    background: repeating-linear-gradient(90deg, var(--amber) 0 3px, transparent 3px 11px);
    background-size: 11px 2px; animation: fb-flow-l 1.1s linear infinite; opacity: 0.85;
  }
  .chain-node.is-ours { animation: fb-pulse 2.4s ease-in-out infinite; }
}
@media (prefers-reduced-motion: no-preference) and (max-width: 760px) {
  .chain-link::before { background: repeating-linear-gradient(180deg, var(--accent) 0 6px, transparent 6px 14px); background-size: 2px 14px; animation-name: fb-flow-d; }
  .chain-link::after { display: none; }
}
@keyframes fb-bar { to { height: var(--h); } }
@keyframes fb-flow-r { to { background-position: 14px 0; } }
@keyframes fb-flow-l { to { background-position: -11px 0; } }
@keyframes fb-flow-d { to { background-position: 0 14px; } }
@keyframes fb-pulse { 50% { box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 22%, transparent); } }

/* ---------- tor sygnału ---------- */
.chain {
  display: grid;
  grid-template-columns: 1fr auto 1.2fr auto 1fr;
  align-items: stretch;
  gap: 0;
  margin-top: 2.5rem;
  font-family: var(--f-mono);
}
.chain-node {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1rem;
  display: grid;
  gap: 0.35rem;
  align-content: start;
}
.chain-node.is-ours { border-color: var(--accent); }
.chain-node strong { font: 400 var(--step-1)/1.2 var(--f-display); text-transform: uppercase; letter-spacing: 0.03em; }
.chain-node span { font-size: var(--step--1); color: var(--muted); line-height: 1.45; }
.chain-link {
  display: grid;
  place-items: center;
  padding-inline: 0.75rem;
  font-size: var(--step--1);
  color: var(--muted);
  text-align: center;
  min-width: 4.5rem;
}
.chain-link::before {
  content: "";
  display: block;
  width: 100%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--muted) 0 6px, transparent 6px 10px);
  margin-bottom: 0.35rem;
}
@media (max-width: 760px) {
  .chain { grid-template-columns: 1fr; }
  .chain-link { padding-block: 0.6rem; }
  .chain-link::before { width: 2px; height: 1.5rem; margin: 0 auto 0.35rem; background: repeating-linear-gradient(180deg, var(--muted) 0 6px, transparent 6px 10px); }
}

/* ---------- tabele ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
th, td { text-align: left; padding: 0.7rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
th { font: 500 var(--step--1)/1.3 var(--f-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); background: var(--panel); }
td.ctl { font-family: var(--f-mono); white-space: nowrap; }
td.num { font-variant-numeric: tabular-nums; }

.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; } }

/* ---------- ekrany ---------- */
.screens {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.75rem;
}
.screen { display: grid; gap: 0.6rem; margin: 0; }
.screen-img {
  aspect-ratio: 414.6 / 720;
  max-width: 100%;
  border-radius: 4px;
  background-image: url("img/ekran.png");
  background-size: 500% 100%;
  background-repeat: no-repeat;
  box-shadow: 0 0 0 6px #121416, 0 0 0 7px var(--line);
  margin: 7px;
}
.screen:nth-child(1) .screen-img { background-position: 0% 0; }
.screen:nth-child(2) .screen-img { background-position: 25% 0; }
.screen:nth-child(3) .screen-img { background-position: 50% 0; }
.screen:nth-child(4) .screen-img { background-position: 75% 0; }
.screen:nth-child(5) .screen-img { background-position: 100% 0; }
.screen figcaption { font-size: var(--step--1); color: var(--muted); line-height: 1.45; }
.screen figcaption b { display: block; color: var(--ink); font-family: var(--f-mono); font-weight: 500; }
@media (max-width: 860px) { .screens { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 520px) { .screens { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- listy ---------- */
.spec { display: grid; gap: 0; margin: 0; }
.spec div { display: grid; grid-template-columns: 11rem 1fr; gap: 1rem; padding-block: 0.65rem; border-bottom: 1px solid var(--line); }
.spec dt { color: var(--muted); font-size: 0.9375rem; }
.spec dd { margin: 0; font-variant-numeric: tabular-nums; }
@media (max-width: 520px) { .spec div { grid-template-columns: 1fr; gap: 0.1rem; } }

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.6rem; }
.checks li { padding-left: 1.4rem; position: relative; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 0.62em;
  width: 0.55rem; height: 0.55rem; border-radius: 1px; background: var(--accent);
}
.checks li.no::before { background: var(--muted); }

.inside {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2rem);
  display: grid;
  gap: 1rem;
}
.inside p { color: var(--muted); }
.inside p strong { color: var(--ink); }

.warn {
  border-left: 3px solid var(--amber);
  padding: 0.25rem 0 0.25rem 1rem;
  display: grid;
  gap: 0.4rem;
  font-size: 0.9375rem;
}

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 0; max-width: 48rem; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  padding-block: 1rem;
  font-weight: 600;
  list-style: none;
  display: flex; justify-content: space-between; gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--f-mono); color: var(--muted); }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding-bottom: 1rem; color: var(--muted); max-width: 42rem; }

/* ---------- kup ---------- */
.buy-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 26rem);
  gap: 1.5rem 3rem;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 2.5rem);
}
.buy-box ul { margin: 0.75rem 0 0; }
@media (max-width: 760px) { .buy-box { grid-template-columns: 1fr; } }

/* ---------- stopka ---------- */
footer { border-top: 1px solid var(--line); padding-block: 2.5rem 3rem; font-size: 0.9375rem; color: var(--muted); }
footer .wrap { display: grid; gap: 1.5rem; }
.foot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.foot-grid ul { list-style: none; padding: 0; margin: 0.5rem 0 0; display: grid; gap: 0.3rem; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr; } }
.tm { font-size: var(--step--1); max-width: 60rem; }
.foot-brand { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.25rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.foot-brand img { display: block; height: 2rem; width: auto; }
.foot-brand p { color: var(--muted); }

/* ---------- strony dokumentów ---------- */
.doc { padding-block: clamp(2rem, 6vw, 4rem); }
.doc .wrap { max-width: 46rem; }
.doc h1 { font-size: var(--step-3); margin-bottom: 0.5rem; }
.doc h2 { font-size: var(--step-2); margin: 2.25rem 0 0.75rem; }
.doc p, .doc li { margin-bottom: 0.6rem; }
.doc ol, .doc ul { padding-left: 1.3rem; }
.doc .meta { color: var(--muted); font-size: var(--step--1); margin-bottom: 2rem; }
.fill { background: color-mix(in srgb, var(--amber) 22%, transparent); padding: 0 0.2em; border-radius: 2px; }
.form-lines p { border-bottom: 1px dotted var(--muted); padding-bottom: 1.3rem; }

/* ---------- kreator przypisywania ---------- */
.learn {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: minmax(0, 14rem) minmax(0, 1fr);
  gap: 1rem 2rem;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}
.learn p { color: var(--muted); max-width: 46rem; }
@media (max-width: 760px) { .learn { grid-template-columns: 1fr; } }
code {
  font: 500 0.875em/1 var(--f-mono);
  background: var(--panel);
  color: var(--ink);
  padding: 0.15em 0.35em;
  border-radius: 3px;
  white-space: nowrap;
}
.checks b { font-weight: 600; }

/* ---------- formularz zamówienia ---------- */
.order { display: grid; gap: 0.6rem; min-width: 0; width: min(100%, 26rem); }
.order label { font-weight: 600; font-size: 0.9375rem; }
.point-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.point-row input {
  flex: 1 1 9rem; min-width: 0;
  font: 500 1rem/1.2 var(--f-mono); letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
}
.point-row input:focus { outline: 2px solid var(--focus); outline-offset: 1px; }
.order .btn[type="submit"] { justify-self: start; }
.order .btn[disabled] { opacity: 0.7; cursor: progress; }
#order-err { color: var(--accent); }
.map { height: 26rem; max-width: 100%; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.map inpost-geowidget { display: block; height: 100%; }

/* =========================================================
   Sklep: nagłówek z koszykiem, strona główna, strony produktów, koszyk
   ========================================================= */
.cart-btn {
  position: relative; display: inline-grid; place-items: center; width: 2.6rem; height: 2.6rem; margin-left: 0.25rem;
  border: 1px solid var(--line); border-radius: var(--radius); background: transparent; color: var(--ink); cursor: pointer;
}
.cart-btn:hover { border-color: var(--ink); }
.cart-btn svg { width: 1.25rem; height: 1.25rem; }
.cart-count {
  position: absolute; top: -0.45rem; right: -0.45rem; min-width: 1.25rem; height: 1.25rem; padding: 0 0.3rem;
  border-radius: 999px; background: var(--accent); color: var(--accent-ink); font: 600 0.75rem/1.25rem var(--f-body); text-align: center;
}
@media (max-width: 760px) { .cart-btn { margin-left: auto; } }
.nav a[aria-current="page"] { color: var(--ink); }

.btn-block { width: 100%; justify-content: center; }
.btn[disabled], .btn.is-off { opacity: 0.45; pointer-events: none; }
.linkish { background: none; border: 0; padding: 0; color: var(--muted); font: inherit; font-size: var(--step--1); text-decoration: underline; cursor: pointer; }
.linkish:hover { color: var(--ink); }

/* pasek korzyści */
.usp { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-block: 1px solid var(--line); }
.usp div { padding: 1rem 1.25rem; display: grid; gap: 0.15rem; border-left: 1px solid var(--line); }
.usp div:first-child { border-left: 0; }
.usp strong { font: 400 var(--step-1)/1.1 var(--f-display); text-transform: uppercase; letter-spacing: 0.02em; }
.usp span { font-size: var(--step--1); color: var(--muted); }
@media (max-width: 760px) { .usp { grid-template-columns: 1fr 1fr; } .usp div:nth-child(3) { border-left: 0; } .usp div:nth-child(n+3) { border-top: 1px solid var(--line); } }

/* strona główna */
.shop-hero { padding-block: clamp(2.5rem, 7vw, 5rem) clamp(2rem, 5vw, 3.5rem); }
.shop-hero .wrap { display: grid; gap: 1.25rem; }
.shop-hero h1 { font-size: clamp(2.75rem, 8vw, 5.5rem); line-height: 0.95; max-width: 14ch; }
.shop-hero h1 .soak { color: var(--ink); background: linear-gradient(to bottom, var(--ink) 0 63%, var(--accent) 63% 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.shop-hero .lede { max-width: 44rem; color: var(--muted); }
.shop-hero .buy-row { margin-top: 0.5rem; }

.grid-products { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
@media (max-width: 960px) { .grid-products { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .grid-products { grid-template-columns: 1fr; } }
.pcard { position: relative; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; transition: border-color 0.2s, transform 0.3s; }
.pcard:hover { border-color: color-mix(in srgb, var(--accent) 60%, var(--line)); }
.pcard__img { display: block; aspect-ratio: 4 / 5; overflow: hidden; background: #d9d9d4; }
.pcard__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1); }
.pcard:hover .pcard__img img { transform: scale(1.04); }
.pcard__badge { position: absolute; top: 0.75rem; left: 0.75rem; z-index: 1; padding: 0.25rem 0.55rem; border-radius: 4px; background: var(--bg); color: var(--ink); font: 500 0.75rem var(--f-mono); letter-spacing: 0.06em; text-transform: uppercase; }
.pcard__body { display: grid; gap: 0.4rem; padding: 1rem 1.1rem 1.15rem; flex: 1; align-content: start; }
.pcard__body h3 { font: 400 var(--step-2)/1.05 var(--f-display); text-transform: uppercase; letter-spacing: 0.01em; }
.pcard__body h3 a { text-decoration: none; }
.pcard__body h3 a::after { content: ""; position: absolute; inset: 0; }   /* cała karta klikalna */
.pcard__body p { color: var(--muted); font-size: 0.9375rem; }
.pcard__foot { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding: 0 1.1rem 1.1rem; position: relative; z-index: 1; }
.pcard__price { font: 400 var(--step-2)/1 var(--f-display); font-variant-numeric: tabular-nums; }
.pcard__price small { display: block; font: 400 var(--step--1)/1.3 var(--f-body); color: var(--muted); margin-top: 0.2rem; }

/* druk 3D i jakość */
.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin-top: 2rem; }
@media (max-width: 960px) { .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .feature-grid { grid-template-columns: 1fr; } }
.feature { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.2rem; background: var(--surface); display: grid; gap: 0.4rem; align-content: start; }
.feature b { font: 400 var(--step-1)/1.1 var(--f-display); text-transform: uppercase; letter-spacing: 0.02em; }
.feature p { color: var(--muted); font-size: 0.9375rem; }
.layers { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
@media (max-width: 860px) { .layers { grid-template-columns: 1fr; } }
.layers figure { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.layers figure img { width: 100%; height: auto; display: block; }
.layers figcaption { padding: 0.6rem 0.9rem; font-size: var(--step--1); color: var(--muted); background: var(--surface); }
.qc { counter-reset: qc; list-style: none; padding: 0; margin: 2rem 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
@media (max-width: 960px) { .qc { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .qc { grid-template-columns: 1fr; } }
.qc li { counter-increment: qc; border-top: 2px solid var(--accent); padding-top: 0.9rem; display: grid; gap: 0.35rem; }
.qc li::before { content: counter(qc, decimal-leading-zero); font: 500 var(--step--1) var(--f-mono); color: var(--accent); letter-spacing: 0.08em; }
.qc b { font-weight: 600; }
.qc p { color: var(--muted); font-size: 0.9375rem; }

/* strona produktu */
.crumbs { font: 500 var(--step--1) var(--f-mono); letter-spacing: 0.06em; color: var(--muted); padding-top: 1.25rem; }
.crumbs a { color: var(--muted); }
.pdp { padding-block: 1.25rem clamp(3rem, 7vw, 5rem); }
.pdp .wrap { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }
@media (max-width: 860px) { .pdp .wrap { grid-template-columns: 1fr; } }
.gallery { display: grid; gap: 0.75rem; }
.gallery__main { aspect-ratio: 4 / 5; border-radius: var(--radius); overflow: hidden; background: #d9d9d4; border: 1px solid var(--line); }
.gallery__main img { width: 100%; height: 100%; object-fit: cover; }
.gallery__thumbs { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.gallery__thumbs button { width: 4.5rem; aspect-ratio: 4 / 5; padding: 0; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; background: none; cursor: pointer; opacity: 0.7; }
.gallery__thumbs button[aria-current="true"] { border-color: var(--accent); opacity: 1; }
.gallery__thumbs img { width: 100%; height: 100%; object-fit: cover; }
.pinfo { display: grid; gap: 1rem; position: sticky; top: 4.5rem; }
@media (max-width: 860px) { .pinfo { position: static; } }
.pinfo h1 { font-size: clamp(2.5rem, 6vw, 3.75rem); }
.pinfo .sub { color: var(--muted); font-size: var(--step-1); }
.pinfo .price { font-size: var(--step-4); }
.buy-line { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: stretch; }
.stepper { display: inline-flex; align-items: stretch; border: 1px solid var(--line); border-radius: var(--radius); }
.stepper button { width: 2.6rem; background: none; border: 0; color: var(--ink); font-size: 1.2rem; cursor: pointer; }
.stepper input { width: 3rem; text-align: center; background: none; border: 0; color: var(--ink); font: 600 1rem var(--f-body); -moz-appearance: textfield; }
.stepper input::-webkit-inner-spin-button { -webkit-appearance: none; }
.pinfo .checks { margin-top: 0.25rem; }
.soon { border: 1px dashed var(--line); border-radius: var(--radius); padding: 0.9rem 1rem; color: var(--muted); }
.spec { width: 100%; border-collapse: collapse; }
.spec th, .spec td { text-align: left; padding: 0.65rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec th { width: 38%; color: var(--muted); font-weight: 400; font-size: 0.9375rem; padding-right: 1rem; }

/* koszyk: panel boczny */
.no-scroll { overflow: hidden; }
.cart { position: fixed; inset: 0; z-index: 100; }
.cart__shade { position: absolute; inset: 0; background: rgb(0 0 0 / 0.55); opacity: 0; transition: opacity 0.25s; }
.cart__box {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(420px, 100%); display: flex; flex-direction: column;
  background: var(--bg); border-left: 1px solid var(--line); transform: translateX(100%); transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px);
}
.cart.is-open .cart__shade { opacity: 1; }
.cart.is-open .cart__box { transform: none; }
.cart__head { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.25rem; border-bottom: 1px solid var(--line); }
.cart__head h2 { font-size: var(--step-2); }
.cart__x { background: none; border: 0; color: var(--ink); font-size: 1.75rem; line-height: 1; cursor: pointer; padding: 0.25rem 0.5rem; }
.cart__body { flex: 1; overflow-y: auto; padding: 1rem 1.25rem; display: grid; gap: 1rem; align-content: start; }
.cart__foot { padding: 1rem 1.25rem 1.25rem; border-top: 1px solid var(--line); display: grid; gap: 0.6rem; }
.cart__foot:empty { display: none; }
.cart__empty { color: var(--muted); }
.clines { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.cline { display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; gap: 0.85rem; align-items: start; }
.cline__img img { width: 72px; height: 90px; object-fit: cover; border-radius: 4px; display: block; }
.cline__txt { display: grid; gap: 0.2rem; min-width: 0; }
.cline__txt a { text-decoration: none; }
.cline__txt span { color: var(--muted); font-size: var(--step--1); }
.cline__price { display: grid; justify-items: end; gap: 0.4rem; font-variant-numeric: tabular-nums; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 4px; width: max-content; margin-top: 0.3rem; }
.qty button { width: 1.9rem; height: 1.9rem; background: none; border: 0; color: var(--ink); cursor: pointer; font-size: 1rem; }
.qty button[disabled] { opacity: 0.35; cursor: default; }
.qty output { min-width: 1.6rem; text-align: center; font-variant-numeric: tabular-nums; }
.totals { margin: 0; display: grid; gap: 0.35rem; }
.totals div { display: flex; justify-content: space-between; gap: 1rem; }
.totals dt { color: var(--muted); }
.totals dd { margin: 0; font-variant-numeric: tabular-nums; }
.totals__sum { padding-top: 0.5rem; margin-top: 0.25rem; border-top: 1px solid var(--line); }
.totals__sum dt, .totals__sum dd { color: var(--ink); font: 400 var(--step-2)/1 var(--f-display); text-transform: uppercase; }

/* strona zamówienia */
.zam .wrap { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
@media (max-width: 860px) { .zam .wrap { grid-template-columns: 1fr; } }
.zam__box { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: clamp(1rem, 3vw, 1.75rem); display: grid; gap: 1rem; }

/* baner strony głównej: tekst + kompozycja zdjęć produktów */
.shop-hero .wrap { grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); align-items: center; }
.shop-hero__txt { display: grid; gap: 1.25rem; }
.hero-stack { position: relative; height: clamp(360px, 38vw, 470px); }
.hero-stack a { position: absolute; width: 46%; aspect-ratio: 4 / 5; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: 0 24px 50px rgb(0 0 0 / 0.5); transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1); }
.hero-stack a img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-stack a:nth-child(1) { left: 0; top: 10%; transform: rotate(-7deg); }
.hero-stack a:nth-child(2) { right: 0; top: 0; transform: rotate(6deg); }
.hero-stack a:nth-child(3) { left: 24%; top: 22%; width: 52%; z-index: 2; transform: rotate(-1.5deg); }
.hero-stack a:hover { transform: rotate(0) translateY(-6px); z-index: 3; }
@media (max-width: 860px) { .shop-hero .wrap { grid-template-columns: 1fr; } .hero-stack { display: none; } }
.usp strong, .totals__sum dd, .pcard__price { text-transform: none; }

/* warianty: gotowy wydruk / plik STL */
.variants { border: 0; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.variants legend { margin-bottom: 0.4rem; }
.variant { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 0.75rem; align-items: center; padding: 0.8rem 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); cursor: pointer; }
.variant:has(input:checked) { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.variant input { accent-color: var(--accent); width: 1.1rem; height: 1.1rem; }
.variant span { display: grid; gap: 0.1rem; }
.variant small { color: var(--muted); font-size: var(--step--1); }
.variant em { font: 400 var(--step-1)/1 var(--f-display); font-style: normal; }
.variant.is-off { opacity: 0.5; cursor: not-allowed; }
.cline__tag { font: 500 0.75rem var(--f-mono); letter-spacing: 0.04em; color: var(--accent); margin-top: 0.3rem; }
.check { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0.6rem; align-items: start; font-size: var(--step--1); color: var(--muted); cursor: pointer; }
.check input { margin-top: 0.2rem; accent-color: var(--accent); width: 1.05rem; height: 1.05rem; }
.downloads { margin-top: 2rem; padding: 1.25rem 1.5rem; border: 1px solid var(--accent); border-radius: var(--radius); background: var(--surface); }
.downloads ul { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: 0.6rem; }