/* ============================================================
   weather it — shared stylesheet
   Low-carbon build: one cached stylesheet across all pages,
   system fonts only (no web-font downloads), no raster images.
   Dark theme · bold grotesque display + monospace data labels.
   ============================================================ */
:root{
  /* light surfaces — white & electric blue */
  --paper:#ffffff;        /* page background */
  --paper-2:#f3f4f8;      /* alt section */
  --card:#ffffff;         /* card surface */
  --card-2:#f4f5f8;       /* elevated / inputs */
  --ink:#0f1320;          /* primary text / headings */
  --muted:#5b6573;
  --line:#e6e8ee;
  --line-strong:#cdd1da;

  /* brand — electric blue (kept var names for inline refs) */
  --indigo:#1f2ae6;       /* PRIMARY — electric blue */
  --indigo-2:#1219c2;     /* darker blue — links, hover, text accents */
  --indigo-soft:#e8eaff;
  --clay:#1f2ae6;         /* accent — same electric blue */
  --clay-soft:#e8eaff;
  --ochre:#1f2ae6;
  --slate:#5b6573;

  /* risk hues — blue tones */
  --heat:#1f2ae6;
  --rain:#1f2ae6;
  --sea:#1219c2;
  --drought:#3742ff;
  --storm:#5b6573;
  --cold:#3742ff;
  --fire:#1219c2;

  --radius:14px;
  --shadow:0 1px 2px rgba(15,19,32,.05),0 12px 34px rgba(15,19,32,.08);
  --display:"Bricolage Grotesque",ui-sans-serif,system-ui,-apple-system,"Segoe UI","Helvetica Neue",Arial,sans-serif;
  --sans:"Hanken Grotesk",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","Cascadia Code","Roboto Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased;
  font-synthesis:none;
}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
.narrow{max-width:780px}

/* ---------- header / nav ---------- */
.site-head{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-head .bar{display:flex;align-items:center;gap:14px;height:64px}
.mark{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.mark .name{font-family:var(--display);font-weight:800;font-size:21px;letter-spacing:-.02em;text-transform:lowercase}
.mark .name span{color:var(--clay)}
nav.main{margin-left:auto;display:flex;gap:2px;align-items:center}
nav.main a{text-decoration:none;color:var(--muted);font-size:14px;font-weight:600;padding:8px 13px;border-radius:9px}
nav.main a:hover{color:var(--ink);background:var(--card-2)}
nav.main a.active{color:var(--ink)}
nav.main a.cta{background:var(--indigo);color:#fff;font-weight:700}
nav.main a.cta:hover{background:var(--indigo-2);color:#fff}

/* ---------- typography ---------- */
h1,h2,h3{font-family:var(--display);font-weight:800;letter-spacing:-.025em;line-height:1.08;margin:0;color:var(--ink)}
h1{font-size:clamp(34px,5.4vw,58px)}
h2{font-size:clamp(24px,3.4vw,36px)}
h3{font-size:20px;letter-spacing:-.01em}
.eyebrow{font-family:var(--mono);text-transform:uppercase;letter-spacing:.18em;font-size:11.5px;font-weight:600;color:var(--clay)}
.lede{font-size:clamp(17px,2vw,21px);color:#4f5663;max-width:60ch;line-height:1.55}
p{margin:0 0 14px}
a{color:var(--indigo-2)}
em{font-style:normal;color:var(--indigo);font-weight:600}
.section{padding:72px 0}
.section.tight{padding:44px 0}
hr.rule{border:none;border-top:1px solid var(--line);margin:0}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-size:15px;font-weight:700;
  padding:14px 24px;border-radius:11px;border:none;cursor:pointer;text-decoration:none;transition:.15s}
.btn.primary{background:var(--indigo);color:#fff}
.btn.primary:hover{background:var(--indigo-2)}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line-strong)}
.btn.ghost:hover{border-color:var(--indigo);color:var(--indigo)}
.btn.sm{padding:9px 16px;font-size:13.5px}
.btn:disabled{opacity:.35;cursor:not-allowed}

/* ---------- cards & grids ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:820px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}}

.stat{padding:20px;border:1px solid var(--line);border-radius:12px;background:var(--card)}
.stat .big{font-family:var(--mono);font-size:33px;font-weight:700;line-height:1;letter-spacing:-.02em}
.stat .lab{font-size:13.5px;color:var(--muted);margin-top:10px;line-height:1.5}
.stat .src{font-family:var(--mono);font-size:10.5px;color:#6f7985;margin-top:9px;text-transform:uppercase;letter-spacing:.06em}

.pill{display:inline-block;font-family:var(--mono);font-size:11px;font-weight:600;padding:5px 11px;border-radius:7px;background:var(--indigo-soft);color:var(--indigo);text-transform:uppercase;letter-spacing:.05em}

/* ---------- simplified footer ---------- */
footer.site-foot{border-top:1px solid var(--line);background:var(--paper-2);margin-top:64px}
footer.site-foot .wrap{padding-top:40px;padding-bottom:40px}
.foot-main{display:flex;flex-wrap:wrap;gap:18px 30px;align-items:center;justify-content:space-between;padding-bottom:22px;border-bottom:1px solid var(--line)}
.foot-nav{display:flex;flex-wrap:wrap;gap:6px 18px}
.foot-nav a{color:var(--muted);text-decoration:none;font-size:13.5px;font-weight:600}
.foot-nav a:hover{color:var(--indigo)}
.foot-andthen{margin:22px 0 0;font-size:14px;color:#4f5663}
.foot-andthen a{color:var(--ink);border-bottom:1px solid var(--line-strong)}
.foot-andthen a:hover{color:var(--indigo);border-color:var(--indigo)}
.carbon-line{margin:14px 0 0;font-size:13px;color:var(--muted);line-height:1.6;width:100%}
.carbon-line b{color:var(--ink)}
.carbon-line a{color:var(--muted);border-bottom:1px solid var(--line-strong)}
.leaf{color:var(--clay)}
.foot-legal{margin:18px 0 0;font-size:11.5px;color:#6f7985;line-height:1.7;max-width:84ch}
.foot-legal a{color:#8b95a1}

/* ============================================================
   KIT BUILDER
   ============================================================ */
.kit-screen{display:none}
.kit-screen.active{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
input[type=text]{font-size:18px;padding:14px 16px;border:1.5px solid var(--line-strong);border-radius:10px;width:230px;text-transform:uppercase;letter-spacing:1px;background:var(--card-2);color:var(--ink);font-family:var(--mono)}
input[type=text]:focus{outline:none;border-color:var(--indigo)}
input[type=text]::placeholder{color:#6f7985}
.pc-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;align-items:center}
.chip-pc{display:inline-block;background:var(--clay-soft);color:var(--clay);border-radius:20px;padding:5px 12px;margin:4px 6px 0 0;cursor:pointer;font-weight:650;font-size:13px}
.chip-pc:hover{filter:brightness(1.1)}
.hint{font-size:13px;color:var(--muted);margin-top:12px}
.hint a,.chart-cap a,.area-summary a{color:var(--indigo-2)}
.q{margin-bottom:24px}
.q h3{margin:0 0 12px;font-family:var(--display);font-size:17px;font-weight:800}
.opts{display:flex;flex-wrap:wrap;gap:10px}
.opt{border:1.5px solid var(--line-strong);border-radius:10px;padding:11px 16px;cursor:pointer;font-size:14px;background:var(--card-2);color:var(--ink);user-select:none;transition:.12s;font-weight:550}
.opt:hover{border-color:var(--indigo)}
.opt.sel{border-color:var(--indigo);background:var(--indigo-soft);color:var(--indigo);font-weight:700}
.survey-nav{display:flex;justify-content:space-between;margin-top:8px}
.progress{height:5px;background:var(--line);border-radius:4px;overflow:hidden;margin:14px 0 22px}
.progress > div{height:100%;background:var(--clay);transition:width .25s}

.exposure-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-top:18px}
.haz{border:1px solid var(--line);border-radius:12px;padding:13px;background:var(--card-2)}
.haz .name{font-weight:700;font-size:13.5px;line-height:1.3;min-height:2.6em}
.haz .bar{height:7px;border-radius:4px;background:var(--line);margin-top:9px;overflow:hidden}
.haz .fill{height:100%;border-radius:4px}
.haz .lvl{font-family:var(--mono);font-size:11px;color:var(--muted);margin-top:7px;text-transform:uppercase;letter-spacing:.06em}
.area-summary{background:var(--indigo-soft);border-radius:12px;padding:16px 18px;margin-top:18px;font-size:15.5px;color:#21283a}
.area-summary b{color:var(--indigo)}

.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:22px 0 4px}
.toolbar .lab{font-family:var(--mono);font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;margin-right:2px}
.filter,.sortbtn{border:1.5px solid var(--line-strong);background:var(--card-2);border-radius:20px;padding:7px 14px;font-size:13px;cursor:pointer;font-weight:650;color:var(--muted);transition:.12s}
.filter:hover,.sortbtn:hover{border-color:var(--ink)}
.filter.on,.sortbtn.on{border-color:var(--indigo);background:var(--indigo-soft);color:var(--indigo)}
.count{font-size:13.5px;color:var(--muted);margin:16px 0 4px}
#results-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(212px,1fr));gap:14px;margin-top:6px}
.sol{border:1px solid var(--line);border-radius:12px;padding:15px 16px;background:var(--card);display:flex;flex-direction:column}
.sol-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}
.sol-cat{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.sol-cat .ci{font-size:15px;line-height:1;color:var(--indigo)}
.sol-cost{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--muted)}
.sol-cost.cost0{color:var(--indigo)}
.sol h4{margin:0 0 4px;font-family:var(--display);font-size:15px;font-weight:800;color:var(--ink)}
.sol .tags{margin-top:auto;padding-top:10px}
.sol p{margin:0;color:var(--muted);font-size:14px}
.sol .why{margin-top:8px;font-size:13px;color:var(--clay);font-weight:650}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.tag{font-family:var(--mono);font-size:10.5px;font-weight:600;padding:4px 9px;border-radius:6px;background:var(--card-2);color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.tag.cost0{background:var(--indigo-soft);color:var(--indigo)}
.tag.cost1,.tag.cost2,.tag.cost3{background:#eef0f4;color:#5b6573}
.tag.beh{background:#e2f3ea;color:#15784a}   /* free habit — green */
.tag.act{background:#fdebca;color:#8f5b00}   /* one-off action — amber */
.tag.inv{background:#ece2f7;color:#6645a3}   /* investment — violet */
.cost-pill{position:absolute;top:16px;right:18px;font-family:var(--mono);font-size:17px;font-weight:700;letter-spacing:1px}
.cat-head{font-family:var(--mono);margin:26px 0 2px;font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);border-top:1px dashed var(--line-strong);padding-top:18px}
@media(max-width:560px){.cost-pill{display:none}.sol h4{padding-right:0}}

/* ============================================================
   DATA EXPLORER
   ============================================================ */
.risk-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 0}
.risk-tab{border:1.5px solid var(--line-strong);background:var(--card-2);border-radius:30px;padding:9px 16px;font-size:14px;font-weight:650;cursor:pointer;color:var(--muted);display:flex;align-items:center;gap:8px}
.risk-tab:hover{border-color:var(--ink);color:var(--ink)}
.risk-tab.on{color:#fff;border-color:transparent;font-weight:700}
.risk-tab .dot{width:10px;height:10px;border-radius:50%}
.risk-panel{display:none}
.risk-panel.active{display:block;animation:fade .25s ease}
.chart-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-top:18px;position:relative}
.chart-card svg{width:100%;height:auto;display:block}
.chart-cap{font-size:12.5px;color:var(--muted);margin-top:12px;line-height:1.5}
.legend-row{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--muted);margin-top:10px}
.legend-row span b{color:var(--ink)}
.swatch{display:inline-block;width:14px;height:4px;border-radius:2px;vertical-align:middle;margin-right:6px}
.swatch.band{height:12px;width:14px;border-radius:3px;opacity:.32}
.confidence{font-family:var(--mono);font-size:10.5px;font-weight:600;padding:4px 10px;border-radius:7px;text-transform:uppercase;letter-spacing:.06em}
.confidence.high{background:var(--indigo-soft);color:var(--indigo-2)}
.confidence.med{background:#eef0f4;color:#5b6573}
.confidence.low{background:#f1f2f5;color:#7a8390}
table.facts{width:100%;border-collapse:collapse;margin-top:8px;font-size:14px}
table.facts td{padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top;color:#3f4654}
table.facts td:first-child{font-weight:650;width:42%;color:var(--ink)}
table.facts tr:last-child td{border-bottom:none}

/* sources page */
.src-item{border-left:3px solid var(--clay);padding:4px 0 4px 16px;margin-bottom:22px}
.src-item h3{font-family:var(--display);font-size:16px;margin:0 0 4px}
.src-item .org{font-family:var(--mono);font-size:12px;color:var(--muted);margin-bottom:6px}
.src-item p{font-size:14.5px;margin:0;color:#3f4654}
.method-step{display:flex;gap:16px;margin-bottom:18px}
.method-step .num{flex:0 0 36px;height:36px;border-radius:50%;background:var(--indigo);color:#fff;font-family:var(--mono);font-weight:700;display:flex;align-items:center;justify-content:center}
.method-step div:last-child{color:#3f4654}

@media print{.site-head,nav.main,.kit-screen:not(.active),footer.site-foot{display:none}.card{box-shadow:none}body{background:#fff;color:#000}}

/* ============================================================
   POLISH
   ============================================================ */
.btn.primary{box-shadow:0 1px 2px rgba(31,42,230,.24),0 8px 22px rgba(31,42,230,.18)}
.btn{transition:transform .15s, box-shadow .15s, background .15s, border-color .15s, color .15s}
.btn.primary:hover{transform:translateY(-1px)}
.btn.ghost:hover{transform:translateY(-1px)}
.hero-accent{display:inline-block;width:48px;height:4px;border-radius:2px;background:var(--clay);margin-bottom:24px}
.card{transition:border-color .15s, box-shadow .15s, transform .15s}
.how-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.stat{transition:transform .15s, border-color .15s}
.stat:hover{border-color:var(--line-strong)}
.section .eyebrow{display:block;margin-bottom:12px}
nav.main a.active:not(.cta){position:relative}
nav.main a.active:not(.cta)::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--clay)}
.risk-tab{transition:transform .12s, border-color .12s, background .12s, color .12s}
.risk-tab:hover{transform:translateY(-1px)}
.band-quote{font-family:var(--display);font-weight:800;font-size:clamp(24px,3.6vw,38px);line-height:1.18;letter-spacing:-.02em;color:var(--ink);max-width:22ch}
.band-quote .accent{color:var(--clay)}
.tone-paper{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tone-ink{background:var(--indigo);border:none}
.tone-ink .eyebrow{color:#c7ccff}
.tone-ink h2{color:#fff}
.tone-ink p{color:#e6e8ff}
.tone-ink .leaf{color:#c7ccff}
@media (prefers-reduced-motion:no-preference){.hero-rise{animation:rise .55s ease both}}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* moody depth: a single soft green glow, no images (zero asset weight) */
body{position:relative}
body::before{content:"";position:fixed;top:-200px;left:0;right:0;height:560px;
  background:radial-gradient(640px 560px at 50% 0,rgba(31,42,230,.07),transparent 70%);pointer-events:none;z-index:-1}
h1{font-size:clamp(36px,5.8vw,64px)}
.section{padding:80px 0}
.lede{max-width:62ch}
/* refined card edges on dark */
.card,.chart-card,.stat,.sol,.haz{background-image:linear-gradient(180deg,rgba(255,255,255,.018),transparent 120px)}
.eyebrow{opacity:.95}

/* blue hero block (above the fold) */
.hero-fold{background:var(--indigo);color:#fff}
.hero-fold .eyebrow{color:#cdd2ff}
.hero-fold .hero-accent{background:#fff;opacity:.85}
.hero-fold h1{color:#fff}
.hero-fold .lede{color:#e7e9ff}
.hero-fold em{color:#fff}
.hero-fold .hint{color:#cdd2ff}
.hero-fold .btn.primary{background:#fff;color:var(--indigo);box-shadow:0 1px 2px rgba(0,0,0,.12),0 10px 26px rgba(0,0,0,.16)}
.hero-fold .btn.primary:hover{background:#eef0ff;color:var(--indigo-2)}

/* submit form */
.form{max-width:640px}
.field{display:block;margin-bottom:16px}
.field > span{display:block;font-weight:650;font-size:14px;margin-bottom:6px;color:var(--ink)}
.form input[type=text],.form input[type=email],.form textarea,.form select{
  width:100%;font-family:var(--sans);font-size:15px;padding:12px 14px;border:1.5px solid var(--line-strong);
  border-radius:10px;background:var(--card);color:var(--ink);text-transform:none;letter-spacing:normal}
.form textarea{min-height:120px;resize:vertical}
.form select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) 19px,calc(100% - 12px) 19px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:38px}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--indigo)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:560px){.form-row{grid-template-columns:1fr}}

/* ============================================================
   MOBILE
   ============================================================ */
@media(max-width:680px){
  .wrap{padding:0 18px}
  .section{padding:52px 0}
  .section.tight{padding:34px 0}

  /* header: logo on top, nav reflows full-width below */
  .site-head .bar{height:auto;min-height:56px;flex-wrap:wrap;row-gap:4px;padding:8px 0}
  nav.main{width:100%;margin-left:0;justify-content:space-between;gap:2px}
  nav.main a{padding:8px 9px;font-size:13px}
  nav.main a.active:not(.cta)::after{left:9px;right:9px;bottom:1px}

  /* roomier hero rhythm */
  h1{letter-spacing:-.02em}
  .grid.g2{gap:26px}

  /* postcode entry stacks full width */
  .pc-row{flex-direction:column;align-items:stretch}
  .pc-row input[type=text],.pc-row .btn{width:100%}
  input[type=text]{width:100%}

  /* survey Back/Next share the row evenly, easy to tap */
  .survey-nav .btn{flex:1;justify-content:center}

  /* let the big pull-quote use full width */
  .band-quote{max-width:none}
  .stat .big{font-size:30px}

  /* comfortable tap targets */
  .filter,.chip-pc,.risk-tab{padding-top:9px;padding-bottom:9px}
}

@media(max-width:380px){
  nav.main a{padding:7px 7px;font-size:12px}
  .stat .big{font-size:27px}
}

/* ============================================================
   HUMAN FIGURES (Matisse-style cut-outs)
   ============================================================ */
.hero-fold{overflow:hidden;position:relative}
.hero-fold .wrap{position:relative;z-index:1}
/* large faded figure behind the hero, right-hand side */
.hero-fold::after{content:"";position:absolute;z-index:0;top:50%;
  right:max(24px, calc((100% - 1040px) / 2 + 24px));transform:translateY(-50%);
  width:min(420px,42vw);aspect-ratio:561 / 743;background:url(figures/w4.svg) center/contain no-repeat;
  opacity:.16;pointer-events:none}
@media(max-width:560px){ .hero-fold::after{right:18px;opacity:.1} }
/* a small 'crowd' on the closing call to action */
.people{display:flex;justify-content:center;align-items:flex-end;gap:18px;margin-bottom:22px}
.people i{display:block;width:40px;background:center/contain no-repeat;opacity:.92}
.people .p1{height:62px;background-image:url(figures/b1.svg)}
.people .p2{height:52px;background-image:url(figures/b3.svg)}
.people .p3{height:66px;background-image:url(figures/b5.svg)}