:root {
  color-scheme: light;
  --bg: #eef2f1;
  --surface: #ffffff;
  --ink: #1c2629;
  --muted: #56676c;
  --line: #cbd6d4;
  --accent: #146b66;
  --accent-soft: #d6e8e5;
  --warn: #8f520f;
  --warn-soft: #f6ead9;
  --plate: #22302f;
  --plate-ink: #e8f0ee;
  --plate-muted: #9fb4b1;
  --todo: #b3261e;
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #111819;
    --surface: #182224;
    --ink: #e3ebea;
    --muted: #9aabae;
    --line: #2c3a3c;
    --accent: #62c4ba;
    --accent-soft: #1d3634;
    --warn: #e3a65e;
    --warn-soft: #2e251a;
    --plate: #2b3c3c;
    --plate-ink: #eef5f3;
    --plate-muted: #a7bdba;
    --todo: #ff8a80;
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.55;
}

a { color: var(--accent); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.wrap { max-width: 42rem; margin: 0 auto; padding: 0 1.25rem; }

.sr {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* Užpildytinos reikšmės */
.todo {
  outline: 1.5px dashed var(--todo);
  outline-offset: 1px;
  border-radius: 3px;
  color: var(--todo);
  padding: 0 0.15em;
}

/* ---------- viršus ---------- */
.top { border-bottom: 1px solid var(--line); background: var(--surface); }
.top-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-top: 0.75rem; padding-bottom: 0.75rem;
}
.brand {
  color: var(--ink); text-decoration: none;
  font-size: 1.35rem; font-weight: 700; letter-spacing: -0.03em;
}
.lang { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--muted); }
.globe { width: 1.15rem; height: 1.15rem; }
.lang select {
  font: inherit; font-size: 0.95rem; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 0.35rem 0.5rem; min-height: 2.5rem;
}

/* ---------- tipografija ---------- */
main { padding-top: 1.5rem; padding-bottom: 3rem; }
h1, h2 { line-height: 1.15; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 7vw, 2.75rem); font-weight: 700; margin: 0.25rem 0 0.25rem; }
h2 { font-size: 1.3rem; font-weight: 650; margin: 0 0 0.75rem; }
.lead { font-size: 1.125rem; color: var(--ink); margin: 1.5rem 0; }

.back { display: inline-block; font-size: 0.95rem; margin-bottom: 0.5rem; }
.product-sub { color: var(--muted); margin: 0 0 1.5rem; }

/* ---------- baterijos plokštelė (pagrindinis vizualinis elementas) ---------- */
.plate {
  position: relative;
  background: var(--plate);
  color: var(--plate-ink);
  border-radius: 18px;
  padding: 1.4rem 1.5rem 1.25rem;
  margin-right: 14px;
  font-variant-numeric: tabular-nums;
}
.plate::after {
  /* baterijos „kontaktas“ */
  content: "";
  position: absolute;
  right: -14px; top: 50%;
  width: 14px; height: 38%;
  transform: translateY(-50%);
  background: var(--plate);
  border-radius: 0 7px 7px 0;
  opacity: 0.85;
}
.plate-head {
  display: flex; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap; gap: 0.25rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  padding-bottom: 0.9rem; margin-bottom: 0.9rem;
}
.plate-title { margin: 0; font-size: 1rem; font-weight: 600; color: var(--plate-muted); letter-spacing: 0; }
.plate-big { margin: 0; font-size: clamp(1.6rem, 6vw, 2.1rem); font-weight: 700; letter-spacing: -0.02em; }
.plate-grid { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.85rem 1.25rem; }
.plate-row { min-width: 0; }
.plate-row dt { font-size: 0.85rem; color: var(--plate-muted); }
.plate-row dd { margin: 0.1rem 0 0; font-weight: 600; overflow-wrap: anywhere; }
.plate .todo { color: #ffb4ab; outline-color: #ffb4ab; }

/* ---------- blokai ---------- */
.block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1.1rem;
  margin-top: 1rem;
}
.block p { margin: 0; }
.block.warn { border-left: 5px solid var(--warn); background: var(--warn-soft); }
.block.warn h2 { color: var(--warn); }

ul.plain { margin: 0; padding-left: 1.2rem; }
ul.plain li + li { margin-top: 0.45rem; }

/* žingsniai – tikra seka, todėl numeruojami */
ol.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
ol.steps li {
  counter-increment: step;
  display: grid; grid-template-columns: 2.25rem 1fr; gap: 0.75rem;
  align-items: start;
  padding: 0.6rem 0;
}
ol.steps li + li { border-top: 1px solid var(--line); }
ol.steps li::before {
  content: counter(step);
  width: 2.25rem; height: 2.25rem; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent);
  font-weight: 700; font-variant-numeric: tabular-nums;
}
ol.steps li { line-height: 1.5; }

.disposal { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; align-items: start; }
.sym { width: 2.6rem; height: auto; color: var(--ink); }

.symbols { margin: 0; display: grid; gap: 0.75rem; }
.symbols > div { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; align-items: center; }
.symbols dt { display: flex; justify-content: center; }
.symbols dd { margin: 0; }
.symbols .ce { font-weight: 800; font-size: 1.5rem; letter-spacing: 0.02em; }

.docs { margin: 0; padding: 0; list-style: none; }
.docs li + li { margin-top: 0.5rem; }

.maker address { font-style: normal; line-height: 1.7; }

/* ---------- pagrindinis puslapis ---------- */
.hub-title { margin-top: 0.5rem; }
.products { list-style: none; margin: 0 0 1rem; padding: 0; display: grid; gap: 0.75rem; }
.product-link {
  display: flex; flex-direction: column; gap: 0.2rem;
  padding: 1.1rem 1.25rem;
  background: var(--plate); color: var(--plate-ink);
  border-radius: 14px; text-decoration: none;
  margin-right: 10px; position: relative;
}
.product-link::after {
  content: ""; position: absolute; right: -10px; top: 50%;
  width: 10px; height: 36%; transform: translateY(-50%);
  background: var(--plate); border-radius: 0 6px 6px 0; opacity: 0.85;
}
.product-link:hover .product-name { text-decoration: underline; text-underline-offset: 0.2em; }
.product-name { font-size: 1.25rem; font-weight: 650; }
.product-model { color: var(--plate-muted); font-size: 0.95rem; }
.product-link .todo { color: #ffb4ab; outline-color: #ffb4ab; }

/* ---------- apačia ---------- */
.foot { border-top: 1px solid var(--line); padding: 1.25rem 0 2rem; color: var(--muted); font-size: 0.9rem; }
.foot p { margin: 0.25rem 0; }

@media (max-width: 420px) {
  .plate-grid { grid-template-columns: 1fr; }
  .block { padding: 1.1rem 1rem 1rem; }
}

@media print {
  .top, .back { display: none; }
  body { background: #fff; color: #000; }
  .block { break-inside: avoid; }
}

/* ---------- keitimo instrukcija ---------- */
.proc-title { font-size: 1.6rem; margin: 2rem 0 0.5rem; }
div.lead p { margin: 0 0 0.5rem; }
.block h3 { font-size: 1.05rem; font-weight: 650; margin: 1.1rem 0 0.4rem; letter-spacing: -0.01em; }
.block > p + p, .block > p + figure, .block > figure + p { margin-top: 0.75rem; }
.block > p { margin-top: 0.75rem; }
.block > h2 + p { margin-top: 0; }

.step {
  display: grid; grid-template-columns: 2.25rem 1fr; gap: 0.75rem;
  align-items: start; padding: 0.75rem 0;
  border-top: 1px solid var(--line);
}
.block > h2 + .step { border-top: 0; padding-top: 0.25rem; }
.step-n {
  width: 2.25rem; height: 2.25rem; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--accent); color: var(--surface);
  font-weight: 700; font-variant-numeric: tabular-nums; font-size: 0.95rem;
}
.step-title { margin: 0.35rem 0 0.25rem !important; }
.step-body p { margin: 0; }

.fig { margin: 0.9rem 0; }
.fig img {
  display: block; max-width: 100%; height: auto; max-height: 22rem;
  margin: 0 auto; border-radius: 10px; background: #fff;
  border: 1px solid var(--line);
}
.fig figcaption { font-size: 0.88rem; color: var(--muted); text-align: center; margin-top: 0.35rem; }

.legend { list-style: none; margin: 0.25rem 0 0.75rem; padding: 0; display: grid; gap: 0.3rem; }
.legend strong { display: inline-block; min-width: 2.2rem; color: var(--accent); }
.fig-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: 0.75rem; margin: 0.9rem 0; }
.fig-row .fig { margin: 0; }
.block > p + .step, div.lead + .step { margin-top: 0.75rem; }