/* Battery Finder — white, instruction-manual look. Phone first, scales up to desktop. */
:root {
  color-scheme: light;
  --bg: #ffffff;
  --ink: #141414;
  --muted: #5c5c5c;
  --line: #e4e4e0;
  --soft: #f6f6f3;
  --accent: #0b57d0;        /* links + selected state */
  --buy: #ffc94d;           /* buy button: warm yellow, dark text = high contrast */
  --buy-hover: #f5b625;
  --ok: #157f3b;
  --ok-soft: #e8f5ec;
  --warn: #8a5a00;
  --warn-soft: #fff6e0;
  --bad: #b3261e;
  --bad-soft: #fdecea;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.55 var(--font);
  overflow-wrap: anywhere;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 2px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; text-wrap: balance; }
h1 { font-size: clamp(1.6rem, 4.5vw, 2.35rem); letter-spacing: -0.01em; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 .8em; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header band: black, battery-outline wordmark, search */
.site-header { background: var(--ink); color: #fff; }
.site-header .wrap { display: flex; gap: 12px 20px; align-items: center; justify-content: space-between; padding-top: 12px; padding-bottom: 12px; flex-wrap: wrap; }
.logo { color: #fff; text-decoration: none; display: flex; padding-right: 6px; }
.logo-cell {
  position: relative; display: inline-flex; padding: 1px 10px 3px; border: 3px solid #fff; border-radius: 10px;
  font-weight: 900; font-size: 1.45rem; letter-spacing: -0.035em; line-height: 1.1;
  transform: skewX(-9deg); /* the logo leans forward */
}
.logo-cell::after { content: ""; position: absolute; right: -8px; top: 50%; width: 5px; height: 40%; transform: translateY(-50%); background: #fff; border-radius: 0 3px 3px 0; }
.logo-accent { color: var(--buy); }
.logo:focus-visible { outline: 3px solid var(--buy); outline-offset: 4px; border-radius: 10px; }
.search { display: flex; flex: 1 1 240px; max-width: 420px; min-width: 0; }
@media (max-width: 520px) { .search { flex-basis: 100%; max-width: none; } }
.search input { flex: 1; min-width: 0; width: 100%; font: inherit; font-size: 16px; padding: 9px 12px; border: 1.5px solid #fff; border-right: 0; border-radius: 10px 0 0 10px; }
.search input:focus { outline: 3px solid var(--buy); outline-offset: -1px; }
.search button { font: inherit; font-weight: 700; padding: 0 14px; border: 1.5px solid var(--buy); background: var(--buy); color: var(--ink); border-radius: 0 10px 10px 0; cursor: pointer; }

/* Phone: buy bar pinned to the bottom once the main buy button has scrolled away (added by page.js) */
.buy-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 10; background: #fff; border-top: 1px solid var(--line); box-shadow: 0 -4px 16px rgba(0,0,0,.08); padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); }
.buy-bar .btn { min-height: 48px; }
body.has-buy-bar { padding-bottom: 84px; }
@media (min-width: 760px) { .buy-bar { display: none !important; } body.has-buy-bar { padding-bottom: 0; } }

/* Draft banner */
.draft-banner { background: var(--bad-soft); color: var(--bad); border-bottom: 1px solid #f3c7c3; font-weight: 600; font-size: .9rem; padding: 8px 0; }

/* Breadcrumbs */
.crumbs { font-size: .875rem; color: var(--muted); padding: 14px 0 4px; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px; }
.crumbs li:not(:last-child)::after { content: "›"; margin-left: 6px; color: #9a9a95; }
.crumbs a { color: var(--muted); }

.page-head { padding: 6px 0 4px; }
.page-head .lede { color: var(--muted); max-width: 60ch; }

/* Variant picker */
.picker { margin: 18px 0 8px; }
.picker h2 { font-size: 1.1rem; }
.picker-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.pick {
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px;
  padding: 12px 10px; border: 1.5px solid var(--line); border-radius: var(--radius);
  background: #fff; color: var(--ink); text-decoration: none; font: inherit; cursor: pointer; min-height: 44px;
}
.pick img { width: 72px; height: 72px; }
.pick-name { font-weight: 700; font-size: .95rem; line-height: 1.25; }
.pick-code { font-family: var(--mono); font-size: .85rem; color: var(--muted); }
.pick:hover { border-color: #b9b9b3; }
.pick[aria-pressed="true"] { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent) inset; }
.pick:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* Variant section */
.variant { border-top: 1px solid var(--line); padding: 22px 0 8px; margin-top: 14px; scroll-margin-top: 12px; }
.variant-title { font-size: 1.15rem; margin-bottom: 14px; }
.answer-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 760px) { .answer-grid { grid-template-columns: 300px 1fr; gap: 32px; align-items: start; } }
.device-figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: grid; place-items: center; }
.device-figure img { width: 100%; max-width: 200px; aspect-ratio: 1; object-fit: contain; }
.device-figure figcaption { font-size: .85rem; color: var(--muted); margin-top: 8px; text-align: center; }
@media (max-width: 759px) {
  .device-figure { grid-template-columns: 84px 1fr; place-items: center start; gap: 12px; padding: 12px; text-align: left; }
  .device-figure img { width: 84px; max-width: 84px; }
  .device-figure figcaption { margin-top: 0; text-align: left; }
}

.answer-box { border: 2px solid var(--ink); border-radius: var(--radius); padding: 18px; }
.answer-label { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; margin-bottom: 8px; }
.battery-line { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.battery-line + .battery-line { padding-top: 12px; border-top: 1px dashed var(--line); }
.battery-art { width: 64px; height: 64px; flex: none; }
.battery-code { font-family: var(--mono); font-weight: 800; font-size: clamp(2rem, 7vw, 2.6rem); letter-spacing: -0.02em; line-height: 1; }
.battery-qty { font-weight: 700; font-size: 1.05rem; margin-left: 6px; white-space: nowrap; }
.battery-spec { font-size: .9rem; color: var(--muted); margin-top: 4px; }
.battery-spec a { color: var(--muted); }

.trust { display: inline-flex; align-items: center; gap: 6px; font-size: .875rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; margin: 4px 0 14px; }
.trust.ok { background: var(--ok-soft); color: var(--ok); }
.trust.warn { background: var(--warn-soft); color: var(--warn); }

.btn {
  display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%;
  min-height: 52px; padding: 12px 18px; border-radius: 10px; font: inherit; font-weight: 700; font-size: 1.05rem;
  text-decoration: none; cursor: pointer; border: 1.5px solid transparent;
}
.btn-buy { background: var(--buy); color: #1a1a1a; border-color: #e0a91e; }
.btn-buy:hover { background: var(--buy-hover); }
.btn-buy:focus-visible, .btn-ghost:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.btn-ghost { background: #fff; color: var(--ink); border-color: #c9c9c4; min-height: 44px; font-size: .95rem; font-weight: 600; }
.btn-ghost:hover { border-color: var(--ink); }
@media (min-width: 760px) { .btn-buy { width: auto; min-width: 280px; } }
.pack-links { font-size: .9rem; margin-top: 10px; color: var(--muted); }
.pack-links a { font-weight: 600; margin-right: 10px; white-space: nowrap; }

.note { border-radius: 10px; padding: 12px 14px; font-size: .92rem; margin-top: 14px; }
.note .note-title { display: block; margin-bottom: 2px; font-weight: 700; }
.note.warn { background: var(--warn-soft); color: #4d3500; }
.note.bad { background: var(--bad-soft); color: #5c140f; }
.note.info { background: var(--soft); }
.note ul { margin: 4px 0 0; padding-left: 18px; }

.not-replaceable .battery-code { font-family: var(--font); font-size: 1.5rem; }

/* How-to */
.details { display: grid; grid-template-columns: 1fr; gap: 24px; margin-top: 26px; }
@media (min-width: 760px) { .details { grid-template-columns: 1fr 300px; gap: 32px; } }
.howto-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; padding: 0; list-style: none; }
.howto-meta li { background: var(--soft); border-radius: 999px; padding: 4px 12px; font-size: .875rem; }
.steps { counter-reset: step; list-style: none; margin: 0; padding: 0; }
.steps li { counter-increment: step; position: relative; padding: 0 0 16px 46px; min-height: 34px; }
.steps li::before {
  content: counter(step); position: absolute; left: 0; top: -2px; width: 32px; height: 32px; border-radius: 50%;
  border: 2px solid var(--ink); display: grid; place-items: center; font-weight: 800; font-size: .95rem;
}
.steps li:not(:last-child)::after { content: ""; position: absolute; left: 15px; top: 34px; bottom: 4px; border-left: 2px solid var(--line); }
.steps img { margin-top: 8px; border: 1px solid var(--line); border-radius: 8px; max-width: 320px; }
.side-box { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 14px; }
.side-box h3 { font-size: .95rem; }
.side-box ul { margin: 0; padding-left: 18px; font-size: .92rem; }
.side-box p { font-size: .92rem; }

/* Feedback */
.feedback { background: var(--soft); border-radius: var(--radius); padding: 18px; margin: 30px 0; }
.feedback h2 { font-size: 1.1rem; }
.feedback-buttons { display: flex; gap: 10px; flex-wrap: wrap; }
.feedback-buttons .btn { width: auto; flex: 1 1 140px; }
.feedback form { margin-top: 12px; display: grid; gap: 8px; }
.feedback label { font-size: .92rem; font-weight: 600; }
.feedback input, .feedback textarea { font: inherit; font-size: 16px; padding: 10px; border: 1.5px solid #c9c9c4; border-radius: 8px; width: 100%; }
.feedback-thanks { font-weight: 600; color: var(--ok); }

/* Lists of links / chips */
.section { margin: 30px 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; list-style: none; }
.chips a, .chips span { display: inline-block; padding: 7px 14px; border: 1.5px solid var(--line); border-radius: 999px; text-decoration: none; color: var(--ink); font-size: .92rem; font-weight: 600; min-height: 36px; }
.chips a:hover { border-color: var(--ink); }
.chips .current { background: var(--ink); color: #fff; border-color: var(--ink); }
.link-list { columns: 2 220px; padding-left: 18px; }
.link-list li { margin-bottom: 6px; break-inside: avoid; }

.faq details { border-bottom: 1px solid var(--line); padding: 12px 0; }
.faq summary { font-weight: 700; cursor: pointer; }
.faq details p { margin: 8px 0 0; color: #333; }

.sources { font-size: .85rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 14px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 20px 0 40px; font-size: .85rem; color: var(--muted); }
.site-footer nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
.site-footer a { color: var(--muted); }

/* Battery page */
.battery-hero { display: grid; grid-template-columns: 1fr; gap: 18px; align-items: center; margin: 10px 0 20px; }
@media (min-width: 760px) { .battery-hero { grid-template-columns: 200px 1fr; } }
.battery-hero .battery-art { width: 160px; height: 160px; }
.spec-table { border-collapse: collapse; width: 100%; max-width: 520px; font-size: .95rem; }
.spec-table th, .spec-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.spec-table th { color: var(--muted); font-weight: 600; width: 40%; }

/* Search results */
.results { list-style: none; padding: 0; }
.results li { border-bottom: 1px solid var(--line); padding: 12px 0; }
.results a { font-weight: 700; }

@media print {
  .site-header, .picker, .feedback, .btn, .buy-bar, .pack-links, .site-footer nav { display: none !important; }
  .variant[hidden] { display: block !important; }
}