/* evenEco – commercial EPC & MEES reference
   Register: data-authority publication. Hairlines, tabular figures, EPC band ramp as data palette. */

:root{
  /* brand */
  --green:#5EA242; --green-dk:#40792E; --green-deep:#2F5C25;
  --teal:#69DBCD; --teal-dk:#2F9E8E;
  --ink:#141A22; --ink-2:#1E242E;
  --body:#3A424C; --muted:#5A626D; --faint:#8A929E;
  --line:#E2E0D9; --line-2:#CFCCC2;
  --paper:#FCFBF7; --paper-2:#F5F3EC; --white:#fff;
  --amber:#F2B441; --coral:#EF7A5A; --red:#C4342B;

  /* EPC band ramp – the statutory colour language */
  --b-ap:#00795C; --b-a:#008054; --b-b:#19B459; --b-c:#8DCE46;
  --b-d:#FFD500; --b-e:#FCAA65; --b-f:#EF8023; --b-g:#E9153B;

  --r:6px; --r-sm:4px; --r-lg:10px;
  --sh-sm:0 1px 2px rgba(20,26,34,.05);
  --sh:0 2px 12px rgba(20,26,34,.07);
  --sh-lg:0 18px 48px rgba(20,26,34,.13);
  --measure:68ch;
  --nav-h:60px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 12px)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}
body{
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16.5px; line-height:1.65; color:var(--body); background:var(--paper);
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  font-variant-numeric:tabular-nums lining-nums;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--green-dk);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:2px}
h1,h2,h3,h4{font-family:'Archivo','Helvetica Neue',Arial,sans-serif;color:var(--ink);line-height:1.14;letter-spacing:-.021em;font-weight:700}
h1{font-size:clamp(30px,4.4vw,50px);letter-spacing:-.028em}
h2{font-size:clamp(23px,2.7vw,32px);margin-bottom:14px}
h3{font-size:clamp(17.5px,1.7vw,21px);margin-bottom:8px;letter-spacing:-.016em}
h4{font-size:16px;letter-spacing:-.008em}
p{margin:0 0 1.05em}
strong{color:var(--ink);font-weight:640}
:focus-visible{outline:2.5px solid var(--green-dk);outline-offset:2px;border-radius:2px}
::selection{background:rgba(94,162,66,.22)}
hr{border:0;border-top:1px solid var(--line);margin:34px 0}

.wrap{max-width:1180px;margin:0 auto;padding:0 26px}
.wrap-narrow{max-width:812px;margin:0 auto;padding:0 26px}
.prose{max-width:var(--measure)}
.prose h2{margin-top:2.1em}
.prose h3{margin-top:1.7em}
.prose ul,.prose ol{margin:0 0 1.15em 1.15em}
.prose li{margin-bottom:.42em}
.prose li::marker{color:var(--green)}

/* ── skip link ───────────────────────────────── */
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:200}
.skip:focus{left:8px;top:8px}

/* ── masthead ────────────────────────────────── */
.mast{position:sticky;top:0;z-index:100;background:rgba(252,251,247,.93);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.mast-in{display:flex;align-items:center;gap:22px;height:var(--nav-h);max-width:1180px;margin:0 auto;padding:0 26px}
.brand{display:flex;align-items:center;gap:9px;flex-shrink:0}
.brand img{height:27px;width:auto}
.brand b{font-family:'Archivo',sans-serif;font-weight:700;font-size:18.5px;color:var(--ink);letter-spacing:-.026em}
.brand span{font-size:10.5px;font-weight:600;color:var(--green-dk);border:1px solid rgba(94,162,66,.4);background:rgba(94,162,66,.09);
  padding:1.5px 6px;border-radius:3px;letter-spacing:.07em;text-transform:uppercase}
.mast nav{display:flex;gap:20px;margin-left:auto;align-items:center}
.mast nav a{font-size:14.2px;font-weight:520;color:var(--body);white-space:nowrap}
.mast nav a:hover{color:var(--green-dk);text-decoration:none}
.mast .cta-sm{background:var(--green-dk);color:#fff;padding:8px 15px;border-radius:var(--r-sm);font-weight:600;font-size:13.8px}
.mast .cta-sm:hover{background:var(--green-deep);text-decoration:none}
.mast .cta-sm.alt{background:transparent;color:var(--ink);border:1px solid var(--line-2)}
.mast .cta-sm.alt:hover{background:var(--paper-2);color:var(--green-dk);border-color:var(--green)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line-2);border-radius:var(--r-sm);padding:7px 9px;cursor:pointer}
.burger{min-width:44px;min-height:44px;place-content:center}  /* display stays none until the nav collapses */
.burger span{display:block;width:19px;height:1.8px;background:var(--ink);margin:3.6px 0}

/* ── breadcrumb ──────────────────────────────── */
.crumb{font-size:13px;color:var(--muted);padding:15px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--green-dk)}
.crumb i{font-style:normal;padding:0 7px;color:var(--faint)}

/* ── hero ────────────────────────────────────── */
.hero{padding:52px 0 44px;border-bottom:1px solid var(--line);background:
  radial-gradient(900px 400px at 88% -10%,rgba(105,219,205,.13),transparent 62%),
  radial-gradient(700px 340px at 4% 0%,rgba(94,162,66,.10),transparent 60%)}
.eyebrow{font-size:12px;font-weight:680;letter-spacing:.11em;text-transform:uppercase;color:var(--green-dk);margin-bottom:15px;display:flex;align-items:center;gap:9px}
.eyebrow::after{content:"";flex:1;height:1px;background:var(--line);max-width:190px}
.hero .lede{font-size:clamp(17px,1.85vw,19.5px);color:var(--body);max-width:64ch;margin-top:17px;line-height:1.58}
.hero h1 em{font-style:normal;color:var(--green-dk)}

/* ── figure strip (headline KPIs) ────────────── */
.figs{display:grid;grid-template-columns:repeat(auto-fit,minmax(178px,1fr));gap:0;border:1px solid var(--line);border-radius:var(--r);
  background:var(--white);overflow:hidden;margin-top:30px;box-shadow:var(--sh-sm)}
.fig{padding:19px 20px;border-right:1px solid var(--line)}
.fig:last-child{border-right:0}
.fig .n{font-family:'Archivo',sans-serif;font-size:clamp(25px,3vw,33px);font-weight:700;color:var(--ink);line-height:1;letter-spacing:-.03em}
.fig .n.warn{color:var(--red)}
.fig .k{font-size:12.8px;color:var(--muted);margin-top:7px;line-height:1.42}

/* ── generic section ─────────────────────────── */
.section{padding-top:60px;padding-bottom:60px}
.section.alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.tight{padding-top:40px;padding-bottom:40px}
.sec-head{margin-bottom:26px;max-width:72ch}
.sec-head p{color:var(--muted);margin:9px 0 0}

/* ── cards ───────────────────────────────────── */
.grid{display:grid;gap:16px}
/* grid and flex children must be allowed to shrink below their min-content size,
   or a wide table inside a card pushes the whole track past the viewport */
.grid > *,.hero-grid > *,.pillar-grid > *{min-width:0}
.hero-grid,.pillar-grid{min-width:0}
.g2{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}  /* 4x300+48 > 1128, so 3 tracks */
.g4{grid-template-columns:repeat(auto-fit,minmax(212px,1fr))}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:21px 22px;box-shadow:var(--sh-sm);
  transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease}
/* Only cards laid out in a grid become flex columns. Applying this to every
   .card turned any card with its own inline row layout into a tall empty box,
   because `flex:1 1 260px` sets the basis on the column axis. */
.grid .card{display:flex;flex-direction:column}
.grid .card .more{margin-top:auto;padding-top:12px}  /* align CTAs across a row */
a.card:hover{box-shadow:var(--sh);border-color:var(--line-2);text-decoration:none;transform:translateY(-1px)}
.card h3{color:var(--ink)}
.card p{font-size:14.6px;color:var(--muted);margin:0}
.card .more{font-size:13.6px;font-weight:620;color:var(--green-dk);margin-top:12px;display:inline-block}
.card-ic{width:34px;height:34px;border-radius:var(--r-sm);background:rgba(94,162,66,.1);color:var(--green-dk);
  display:grid;place-items:center;margin-bottom:13px;font-size:16px}

/* ── EPC band ramp ───────────────────────────── */
.bandbar{display:flex;border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line);margin:16px 0}
.bandbar div{flex:1 1 0;min-width:0;padding:9px 4px;text-align:center;font-size:12.5px;font-weight:700}
.bandbar div small{display:block;font-size:10.6px;font-weight:600}
/* Band text colour is set per band, and these selectors carry two classes so they
   outrank `.bandbar div` (0,1,1). A plain `.bd-C` (0,1,0) loses to it, which had
   silently left white text on yellow at 1.42:1. */
.bd-Ap,.bd-A{background:var(--b-a)}
.bd-B{background:var(--b-b)}
.bd-C{background:var(--b-c)}
.bd-D{background:var(--b-d)}
.bd-E{background:var(--b-e)}
.bd-F{background:var(--b-f)}
.bd-G{background:var(--b-g)}
.bandbar .bd-Ap,.bandbar .bd-A,.bandbar .bd-G,
.chip.bd-Ap,.chip.bd-A,.chip.bd-G{color:#fff}
.bandbar .bd-B,.bandbar .bd-C,.bandbar .bd-D,.bandbar .bd-E,.bandbar .bd-F,
.chip.bd-B,.chip.bd-C,.chip.bd-D,.chip.bd-E,.chip.bd-F{color:#141A22}
.chip{display:inline-grid;place-items:center;min-width:25px;height:25px;padding:0 7px;border-radius:var(--r-sm);
  font-weight:700;font-size:13px;color:#fff;font-family:'Archivo',sans-serif}

/* ── data table ──────────────────────────────── */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--white);margin:18px 0;box-shadow:var(--sh-sm);position:relative}
table{border-collapse:collapse;width:100%;font-size:14.6px;min-width:min(440px,100%)}
caption{text-align:left;font-size:13px;color:var(--muted);padding:12px 16px 0;caption-side:top}
th,td{padding:10px 16px;text-align:left;border-bottom:1px solid var(--line)}
thead th{font-size:11.6px;letter-spacing:.075em;text-transform:uppercase;color:var(--muted);font-weight:680;background:var(--paper-2);white-space:nowrap}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(94,162,66,.035)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.bar{height:7px;border-radius:99px;background:var(--green);display:block;min-width:2px}
.bar-cell{width:150px}
.bar-track{background:var(--paper-2);border-radius:99px;height:7px;width:100%}

/* ── callouts ────────────────────────────────── */
.note{border-left:3px solid var(--green);background:rgba(94,162,66,.06);padding:15px 19px;border-radius:0 var(--r-sm) var(--r-sm) 0;margin:20px 0;font-size:15.2px}
.note.warn{border-left-color:var(--coral);background:rgba(239,122,90,.075)}
.note.key{border-left-color:var(--teal-dk);background:rgba(105,219,205,.1)}
.note strong:first-child{display:block;margin-bottom:4px;color:var(--ink)}

/* ── CTA band ────────────────────────────────── */
.ctaband{background:linear-gradient(135deg,var(--ink) 0%,#232C38 55%,var(--green-deep) 190%);color:#D8DDE3;border-radius:var(--r-lg);padding:34px 36px;margin:34px 0;
  display:flex;gap:28px;align-items:center;flex-wrap:wrap;box-shadow:var(--sh-lg)}
.ctaband h2,.ctaband h3{color:#fff}
.ctaband p{margin:8px 0 0;color:#B9C1CB;font-size:15.2px;max-width:56ch}
.ctaband .c-txt{flex:1 1 330px}
.btn{display:inline-block;background:var(--green-dk);color:#fff;font-weight:640;font-size:15.4px;padding:13px 24px;border-radius:var(--r-sm);
  border:0;cursor:pointer;font-family:inherit;transition:background .16s ease,transform .16s ease;text-align:center}
.btn:hover{background:var(--green-deep);text-decoration:none;transform:translateY(-1px)}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,.35);color:#fff}
.btn.ghost:hover{background:rgba(255,255,255,.1)}
.btn.alt{background:var(--ink);color:#fff}
.btn.alt:hover{background:#000}
.btn.wide{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* ── FAQ ─────────────────────────────────────── */
.faq{border-top:1px solid var(--line);margin-top:12px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;padding:16px 34px 16px 0;font-weight:620;color:var(--ink);position:relative;list-style:none;font-size:16.2px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:21px;color:var(--green-dk);font-weight:400;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq .a{padding:0 34px 17px 0;color:var(--body);font-size:15.4px}
.faq .a p:last-child{margin-bottom:0}

/* ── tools ───────────────────────────────────── */
.tool{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 28px;box-shadow:var(--sh);margin:26px 0}
.field{margin-bottom:15px}
.field > label{display:block;font-size:13.4px;font-weight:620;color:var(--ink);margin-bottom:6px}
.field .hint{font-size:12.7px;color:var(--muted);margin-top:5px}
input[type=text],input[type=email],input[type=tel],input[type=number],select,textarea{
  width:100%;padding:11px 13px;border:1px solid var(--line-2);border-radius:var(--r-sm);font-family:inherit;font-size:15.2px;
  color:var(--ink);background:var(--white);transition:border-color .15s ease,box-shadow .15s ease}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(94,162,66,.15)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:13px}
[id]{scroll-margin-top:calc(var(--nav-h) + 12px)}
.result{margin-top:20px;padding:20px 22px;border-radius:var(--r);border:1px solid var(--line);background:var(--paper-2)}
.result.on{border-color:rgba(94,162,66,.45);background:rgba(94,162,66,.06)}
.result.bad{border-color:rgba(196,52,43,.4);background:rgba(196,52,43,.055)}
.result h4{margin-bottom:8px}
.kv{display:flex;justify-content:space-between;gap:14px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:14.6px}
.kv:last-child{border-bottom:0}
.kv b{color:var(--ink);font-weight:640}

/* ── at-a-glance flags: the summary that sits in front of the detail ── */
.flags{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:12px;margin:0 0 22px}
.flag{background:var(--white);border:1px solid var(--line);border-left:3px solid var(--line-2);
  border-radius:var(--r-sm);padding:14px 16px;box-shadow:var(--sh-sm)}
.flag b{display:block;font-family:'Archivo',sans-serif;font-size:15px;color:var(--ink);letter-spacing:-.012em;margin-bottom:4px}
.flag span{display:block;font-size:13.4px;color:var(--muted);line-height:1.5}
.flag.bad{border-left-color:var(--b-g);background:rgba(233,21,59,.035)}
.flag.warn{border-left-color:var(--b-d)}
.flag.ok{border-left-color:var(--b-b)}
.flag .tag{display:inline-block;font-size:10.6px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-bottom:7px}
.flag.bad .tag{color:var(--red)}
.flag.warn .tag{color:#8A6100}
.flag.ok .tag{color:var(--green-dk)}

/* ── plan (tabbed sample) ────────────────────── */
.tabsbar{position:relative;min-width:0}
.tabsbar::after{content:"";position:absolute;right:0;top:0;bottom:1px;width:46px;pointer-events:none;z-index:3;
  background:linear-gradient(to right,rgba(252,251,247,0),var(--paper) 80%)}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.tabs{display:flex;gap:4px;overflow-x:auto;scrollbar-width:thin;padding:5px 0 0;
  border-bottom:1px solid var(--line-2);align-items:flex-end}
.tabs button{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-bottom:1px solid var(--line-2);
  border-radius:9px 9px 0 0;
  margin-bottom:-1px;                 /* sit the tab on the rule so the active one can break it */
  padding:10px 16px 11px;
  font-family:inherit;font-size:14.2px;font-weight:560;color:var(--muted);
  cursor:pointer;white-space:nowrap;position:relative;
  transition:background .15s ease,color .15s ease,transform .12s ease}
.tabs button:hover{background:#EFEDE4;color:var(--ink)}
.tabs button[aria-selected=true]{
  background:var(--white);
  border-color:var(--line-2);
  border-bottom-color:var(--white);   /* the open folder: break through the rule */
  color:var(--ink);font-weight:680;
  box-shadow:inset 0 3px 0 var(--green);
  padding-top:12px;                   /* the selected tab stands slightly proud */
  z-index:2}
.tabs button[aria-selected=true]:hover{background:var(--white)}
/* the drawer the tabs open into */
.tabbody{background:var(--white);border:1px solid var(--line-2);border-top:0;
  border-radius:0 0 var(--r) var(--r);padding:28px 30px;box-shadow:var(--sh-sm);margin-bottom:26px}
.tabbody > .prose > .panel > :first-child{margin-top:0}
.panel[hidden]{display:none}

/* ── misc ────────────────────────────────────── */
.pill{display:inline-block;font-size:12px;font-weight:640;padding:3px 9px;border-radius:99px;background:var(--paper-2);
  color:var(--muted);border:1px solid var(--line)}
.pill.g{background:rgba(94,162,66,.11);color:var(--green-dk);border-color:rgba(94,162,66,.28)}
.pill.r{background:rgba(196,52,43,.09);color:var(--red);border-color:rgba(196,52,43,.26)}
.pill.a{background:rgba(242,180,65,.15);color:#8A6100;border-color:rgba(242,180,65,.4)}
.meta{font-size:13px;color:var(--muted);display:flex;gap:16px;flex-wrap:wrap;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.linklist{columns:2;column-gap:30px;font-size:14.8px}
.linklist a{display:block;padding:5.5px 0;break-inside:avoid;color:var(--body)}
.linklist a:hover{color:var(--green-dk)}
.quote{border-left:3px solid var(--line-2);padding:4px 0 4px 20px;margin:20px 0;font-size:16px;color:var(--body)}
.srcs{font-size:13.4px;color:var(--muted)}
.srcs li{margin-bottom:7px}

/* ── footer ──────────────────────────────────── */
footer.site{background:var(--ink);color:#98A2AE;padding:48px 0 30px;font-size:14.2px}
footer.site h4{color:#fff;font-size:12.4px;letter-spacing:.09em;text-transform:uppercase;margin-bottom:13px;font-weight:660}
footer.site .fgrid a{color:#98A2AE;display:block;padding:4px 0}
footer.site a{color:#98A2AE}
.fbot a{display:inline}
footer.site a:hover{color:#fff;text-decoration:none}
.fgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(148px,1fr));gap:28px}
.fbot{border-top:1px solid rgba(255,255,255,.11);margin-top:36px;padding-top:20px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13.2px}

@media (max-width:1000px){
  .mast nav{display:none}
  .mast nav.open{display:flex;position:absolute;top:var(--nav-h);left:0;right:0;background:var(--white);flex-direction:column;
    align-items:stretch;gap:0;padding:8px 22px 16px;border-bottom:1px solid var(--line);box-shadow:var(--sh)}
  .mast nav.open a{padding:11px 0;border-bottom:1px solid var(--line)}
  .mast nav.open .cta-sm{margin-top:11px;text-align:center;border-bottom:0}
  .burger{display:grid}
  .fig{border-right:0;border-bottom:1px solid var(--line)}
  .row2{grid-template-columns:1fr}
  .linklist{columns:1}
  .ctaband{padding:26px 22px}
  .section{padding-top:44px;padding-bottom:44px}
  table{min-width:440px}  /* let wide tables scroll inside .tbl-wrap rather than reflow */
  /* right-edge fade so a clipped table reads as scrollable, not broken */
  .tbl-wrap{background-image:linear-gradient(to right,rgba(255,255,255,0) calc(100% - 38px),rgba(255,255,255,.97));
    background-repeat:no-repeat;background-position:right;background-attachment:local}
  .bandbar div{font-size:11px;padding:8px 2px}
  .bandbar div small{font-size:9.6px}
}
@media print{
  .mast,footer.site,.ctaband,.burger,.tabsbar,.crumb,.skip,.related-hide{display:none!important}
  body{background:#fff;font-size:10.5pt;line-height:1.5}
  .wrap,.wrap-narrow{max-width:none;padding:0}
  .section{padding-top:0;padding-bottom:0}
  .section.alt{background:#fff;border:0}
  a{color:inherit;text-decoration:none}
  .mast{position:static}
  .card,.tool,.tbl-wrap,.note,.result{box-shadow:none}
  /* Every tab panel prints. On screen the tabs show one at a time; on paper the
     plan is one document, so each panel is revealed and titled from its own label. */
  .tabbody{border:0;padding:0;box-shadow:none;margin:0}
  .panel[hidden]{display:block!important}
  .panel{break-before:page;page-break-before:always;padding-top:4mm}
  .panel:first-of-type{break-before:auto;page-break-before:auto}
  .panel::before{content:attr(data-title);display:block;font-family:'Archivo',sans-serif;font-weight:700;
    font-size:17pt;color:#141A22;letter-spacing:-.02em;margin:0 0 10pt;padding-bottom:5pt;
    border-bottom:1.5pt solid #5EA242}
  .flags{break-inside:avoid;page-break-inside:avoid}
  .flag,.fig,.card{break-inside:avoid;page-break-inside:avoid}
  table{break-inside:auto;font-size:9pt}
  tr,.kv{break-inside:avoid;page-break-inside:avoid}
  thead{display:table-header-group}
  h2,h3{break-after:avoid;page-break-after:avoid}
  .faq details{break-inside:avoid}
  .faq details summary::after{content:""}
  .faq .a{display:block!important}
  .print-only{display:block!important}
  .no-print{display:none!important}
}
.print-only{display:none}