/* Design system for every factory site.
   Grounded in the subject's own vernacular: these sites all answer a question
   with a VERDICT and a NUMBER, so the page is built around an energy-label
   style rating rather than generic cards. Verdict colour is semantic and
   deliberately separate from the brand accent. */
:root{
  --paper:#fbfaf8; --raised:#ffffff; --ink:#15171b; --ink-2:#454b56;
  --muted:#6b7280; --line:#e5e2dd; --line-2:#efedea;
  --card:var(--raised); --bg:var(--raised);
  --accent:hsl(192 38% 34%); --accent-ink:#ffffff;
  --accent-soft:hsl(192 46% 94%);
  --good:#1b6e4a; --good-bg:#e8f3ed;
  --mid:#9a6410;  --mid-bg:#f7efe0;
  --bad:#983a2e;  --bad-bg:#f8ebe8;
  --r:10px;
}
:root:not([data-theme="light"]){
  @media (prefers-color-scheme:dark){
    --paper:#15171b; --raised:#1c1f25; --ink:#eceef1; --ink-2:#b7bcc6;
    --muted:#8d95a3; --line:#2b2f37; --line-2:#232830;
    --accent:hsl(192 48% 68%); --accent-ink:#12151a;
  --accent-soft:hsl(192 32% 20%);
    --accent-soft:hsl(192 32% 20%);
    --good:#5cc48d; --good-bg:#16281f;
    --mid:#d9a349;  --mid-bg:#2a2317;
    --bad:#e08678;  --bad-bg:#2b1c19;
  }
}
:root[data-theme="dark"]{
  --paper:#15171b; --raised:#1c1f25; --ink:#eceef1; --ink-2:#b7bcc6;
  --muted:#8d95a3; --line:#2b2f37; --line-2:#232830;
  --accent:hsl(192 48% 68%); --accent-ink:#12151a;
  --good:#5cc48d; --good-bg:#16281f;
  --mid:#d9a349;  --mid-bg:#2a2317;
  --bad:#e08678;  --bad-bg:#2b1c19;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,.display{
  font-family:Sora,Georgia,"Times New Roman",serif;
  font-weight:500; letter-spacing:-.012em; text-wrap:balance;
}
header{
  border-bottom:1px solid var(--line); background:var(--raised);
}
header .in{max-width:46rem; margin:0 auto; padding:14px 22px}
header a{color:var(--ink); text-decoration:none; font-size:16px; font-weight:600; letter-spacing:-.01em}
main{max-width:46rem; margin:0 auto; padding:28px 22px 56px}
h1{font-size:clamp(1.7rem,4.2vw,2.3rem); line-height:1.15; margin:0 0 .5em}
h2{font-size:1.3rem; line-height:1.25; margin:2.4em 0 .6em}
h3{font-size:1.06rem; margin:1.8em 0 .4em}
p{margin:0 0 1.05em; color:var(--ink-2)}
main > section > p:first-of-type{color:var(--ink)}
a{color:var(--accent); text-underline-offset:2px; text-decoration-thickness:1px}
a:hover{text-decoration:none}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px; border-radius:3px}

/* THE ANSWER. Biggest thing on the page, because it is why anyone came. */
.verdict{
  background:var(--raised); border:1px solid var(--line); border-radius:var(--r);
  padding:22px 24px; margin:0 0 26px; display:flex; flex-direction:column; gap:14px;
}
.verdict .figure{
  font-family:Sora,Georgia,"Times New Roman",serif; font-weight:500;
  font-size:clamp(2.6rem,9vw,3.9rem); line-height:.95; letter-spacing:-.03em;
}
.verdict .figure small{font-size:.34em; letter-spacing:0; color:var(--muted); font-family:inherit}
.verdict .says{color:var(--ink-2); margin:0; font-size:1.02rem}
.badge{
  align-self:flex-start; font-size:.72rem; font-weight:700; letter-spacing:.08em;
  text-transform:uppercase; padding:5px 11px; border-radius:999px;
}
.badge.good{background:var(--good-bg); color:var(--good)}
.badge.mid {background:var(--mid-bg);  color:var(--mid)}
.badge.bad {background:var(--bad-bg);  color:var(--bad)}

/* The inputs behind the answer, at a glance. */
.stats{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(118px,1fr));
  gap:1px; background:var(--line); border:1px solid var(--line);
  border-radius:var(--r); overflow:hidden; margin:0 0 26px;
}
.stats div{background:var(--raised); padding:13px 15px}
.stats b{display:block; font-size:1.22rem; font-weight:600; letter-spacing:-.01em}
.stats span{
  display:block; font-size:.66rem; text-transform:uppercase; letter-spacing:.07em;
  color:var(--muted); margin-top:3px;
}
section{margin-bottom:.4em}
ul,ol{padding-left:1.15em; color:var(--ink-2)}
li{margin:.32em 0}
table{width:100%; border-collapse:collapse; margin:1.3em 0; font-size:.94rem}
th,td{text-align:left; padding:.58em .65em; border-bottom:1px solid var(--line-2)}
th{
  font-size:.68rem; text-transform:uppercase; letter-spacing:.07em;
  color:var(--muted); font-weight:600; border-bottom-color:var(--line);
}
td:not(:first-child),th:not(:first-child){text-align:right}
.scroll{overflow-x:auto; -webkit-overflow-scrolling:touch}
code{background:var(--line-2); padding:.12em .38em; border-radius:4px; font-size:.9em}
footer{
  border-top:1px solid var(--line); margin-top:56px; padding:26px 22px;
  color:var(--muted); font-size:.84rem; text-align:center; background:var(--raised);
}
footer a{color:var(--muted)}
.attribution{margin:.6em 0 0; font-size:.78rem}
.brand{display:inline-flex; align-items:center; gap:9px}
.brand svg{display:block; border-radius:6px}
.brand span{font-family:Sora,Georgia,"Times New Roman",serif; font-weight:600; font-size:17px}
#q{
  width:100%; padding:.7em .85em; font-size:1rem; font-family:inherit;
  border:1px solid var(--line); border-radius:var(--r);
  background:var(--raised); color:var(--ink); margin-bottom:1.1em;
}
#ix{columns:2; column-gap:2.2em; list-style:none; padding:0; margin:0; font-size:.94rem}
#ix li{margin:.16em 0; break-inside:avoid}
@media (max-width:620px){
  body{font-size:16px}
  main{padding:20px 17px 44px}
  .verdict{padding:18px 18px}
  #ix{columns:1}
  th,td{padding:.45em .4em}
}

/* ---- HEADER + NAV -----------------------------------------------------
   A site with no navigation reads as a document. Three links is enough. */
header .in{display:flex; align-items:center; justify-content:space-between; gap:20px}
header nav{display:flex; gap:20px; font-size:.92rem}
header nav a{color:var(--ink-2); text-decoration:none}
header nav a:hover{color:var(--accent)}
@media (max-width:620px){ header nav{gap:14px; font-size:.85rem} }

/* ---- HERO -------------------------------------------------------------
   The question the site answers, asked as a question, with the tool right
   under it. This is the single biggest difference between PanelFit, which
   reads like a product, and everything else, which read like a memo. */
.hero{text-align:center; padding:34px 0 8px; border:0}
.hero h1{
  font-size:clamp(1.85rem, 5.2vw, 3rem); line-height:1.12; letter-spacing:-.022em;
  margin:0 auto .5em; max-width:16ch; text-wrap:balance;
}
.hero .lede{
  color:var(--ink-2); font-size:1.06rem; line-height:1.62;
  max-width:54ch; margin:0 auto 28px; text-wrap:pretty;
}
@media (max-width:620px){ .hero{padding:22px 0 4px} .hero h1{max-width:none} }

/* ---- THE FINDER -------------------------------------------------------
   The primary control on every site, so it is styled like one: a large,
   obviously-typeable field at the top of the page rather than a link list
   pretending to be navigation. */
.finder{
  margin:0 auto 34px; max-width:560px; text-align:left;
  background:var(--card); border:1px solid var(--line); border-radius:14px;
  padding:18px; box-shadow:0 1px 2px rgba(0,0,0,.04), 0 8px 24px -16px rgba(0,0,0,.18);
}
.finder-row{display:flex; gap:9px}
.finder input{
  flex:1; min-width:0; padding:.82em 1em; font-size:1.02rem; font-family:inherit;
  color:var(--ink); background:var(--bg);
  border:1.5px solid var(--line); border-radius:9px; outline:none;
}
.finder button{
  flex:0 0 auto; padding:.82em 1.25em; font:inherit; font-size:.98rem; font-weight:600;
  color:var(--accent-ink); background:var(--accent); border:0; border-radius:9px;
  cursor:pointer; white-space:nowrap;
}
.finder button:hover{filter:brightness(1.08)}
.finder button:focus-visible{outline:2px solid var(--accent); outline-offset:2px}
@media (max-width:620px){ .finder-row{flex-direction:column} .finder button{width:100%} }
.finder input:focus{border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft)}
.finder input::placeholder{color:var(--muted)}
.finder-h{color:var(--muted); font-size:.86rem; margin-top:.5em}
.finder-out{
  list-style:none; margin:.5em 0 0; padding:0;
  border:1px solid var(--line); border-radius:9px; overflow:hidden; background:var(--card);
}
.finder-out li{border-bottom:1px solid var(--line-2)}
.finder-out li:last-child{border-bottom:0}
.finder-out a{display:block; padding:.62em .95em; text-decoration:none; color:var(--ink)}
.finder-out li.on, .finder-out a:hover, .finder-out a:focus{background:var(--accent-soft)}
.finder-out li.on a{color:var(--accent)}
.finder-out li.wait{padding:.62em .95em; color:var(--muted); cursor:default}

/* Browsing is the fallback, not the front door, so it starts collapsed
   instead of dumping a hundred links between the reader and the content.
   It stays in the HTML - closed <details> is still crawled, and it is the
   whole path Googlebot uses to reach the entity pages. */
.browse{margin:0 0 34px; border-top:1px solid var(--line-2); padding-top:16px}
.browse summary{cursor:pointer; font-weight:500; color:var(--ink-2); font-size:.95rem}
.browse summary:hover{color:var(--accent)}
.hublist{
  list-style:none; padding:0; margin:16px 0 0; font-size:.92rem;
  display:grid; grid-template-columns:repeat(auto-fill,minmax(210px,1fr)); gap:2px 18px;
}
.hublist li{display:flex; justify-content:space-between; gap:10px; align-items:baseline;
  padding:.3em 0; border-bottom:1px solid var(--line-2)}
.hublist li span{color:var(--muted); font-size:.8rem; font-variant-numeric:tabular-nums}
@media (max-width:620px){ .hublist{grid-template-columns:1fr} .finder input{font-size:16px} }

@media (prefers-reduced-motion:reduce){*{animation:none!important; transition:none!important}}

.hc-top{padding:2.6rem 0 1.4rem}
.hc-top h1{font-size:clamp(1.9rem,4.6vw,2.9rem);line-height:1.08;letter-spacing:-.02em;max-width:16ch;margin:0 0 .7rem}
.hc-lede{color:var(--ink-2);font-size:1.08rem;max-width:56ch;margin:0 0 1.6rem}
.hc-find{position:relative;max-width:34rem}
.hc-find label{display:block;font-weight:600;font-size:.86rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:.35rem}
.hc-row{display:flex;border:2px solid var(--ink);border-radius:4px;background:var(--card)}
.hc-row input{flex:1;min-width:0;border:0;background:transparent;padding:.85rem 1rem;font-size:1.1rem;color:var(--ink)}
.hc-row input:focus{outline:none}
.hc-row:focus-within{box-shadow:0 0 0 3px var(--accent-soft)}
.hc-row button{border:0;border-left:2px solid var(--ink);background:var(--accent);color:var(--accent-ink);font-weight:600;padding:0 1.3rem;cursor:pointer;font-size:1rem}
.hc-row button:hover{background:var(--ink)}
.hc-hint{color:var(--muted);font-size:.88rem;margin:.5rem 0 0}

.hc-have{margin:1.2rem 0 0;padding:1rem 1.1rem 1.1rem;background:var(--accent-soft);border-left:4px solid var(--accent);max-width:40rem}
.hc-have label{display:block;font-size:.95rem;margin-bottom:.55rem}
.hc-have-row{display:flex;gap:.5rem;flex-wrap:wrap}
.hc-have input,.hc-have select{font-size:1rem;padding:.5rem .6rem;border:1px solid var(--line);border-radius:3px;background:var(--card);color:var(--ink)}
.hc-have input{width:8rem}
.hc-have output{display:block;margin-top:.6rem;min-height:1.4em;font-size:1.02rem}

.hc-scale{margin:2.4rem 0 2.6rem}
.hc-track{position:relative;padding-top:1.4rem}
.hc-zones{display:flex;gap:3px}
.hc-z{flex-basis:0;min-width:0;display:flex;flex-direction:column;gap:.25rem}
.hc-z-bar{height:14px}
.hc-z-not-needed .hc-z-bar{background:var(--good)}
.hc-z-consider .hc-z-bar{background:var(--mid);opacity:.65}
.hc-z-recommended .hc-z-bar{background:var(--mid)}
.hc-z-strongly-recommended .hc-z-bar{background:var(--bad)}
.hc-z-name{font-weight:700;margin-top:1.6rem;font-size:.98rem}
.hc-z-say{font-size:.86rem;color:var(--ink-2);line-height:1.35;padding-right:.6rem}
.hc-z-n{font-size:.8rem;color:var(--muted);font-variant-numeric:tabular-nums}
.hc-ticks{position:absolute;left:0;right:0;top:calc(1.4rem + 18px);height:1rem;font-size:.75rem;color:var(--muted);font-variant-numeric:tabular-nums}
.hc-ticks span{position:absolute;transform:translateX(-50%)}
.hc-ticks span:first-child{transform:none}
.hc-ticks span:last-child{transform:translateX(-100%)}
.hc-pin{position:absolute;top:0;width:2px;height:calc(1.4rem + 14px);background:var(--ink);transform:translateX(-1px);transition:left .2s}
.hc-pin::before{content:"";position:absolute;top:0;left:-5px;border:6px solid transparent;border-top-color:var(--ink)}
.hc-scale figcaption{margin-top:1rem;font-size:.82rem;color:var(--muted);max-width:60ch}

.hc-h2{font-size:1.2rem;margin:0 0 .4rem}
.hc-note{max-width:62ch;color:var(--ink-2);margin:0 0 2.4rem}
.hc-browse{border-top:1px solid var(--line);padding-top:1.4rem}
.hc-browse h2{font-size:1rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:0 0 .8rem}
.hc-browse .hub-list a:hover{color:var(--accent);text-decoration:underline}

.hc-v{font-size:1.15rem}
.hc-v-not-needed strong{color:var(--good)}
.hc-v-recommended strong,.hc-v-consider strong{color:var(--mid)}
.hc-v-strongly-recommended strong{color:var(--bad)}

@media (max-width:640px){
  .hc-zones{flex-direction:column;gap:.9rem}
  .hc-z{flex-grow:1!important}
  .hc-z-name{margin-top:.2rem}
  .hc-ticks,.hc-pin{display:none}
}