/* The Comfy Company: Warmwater-Winstplan. Warm Technical Journal, donkere uitvoering. */
:root{
  color-scheme:dark;
  --bg:#111110; --surface:#1A1816; --surface2:#242019; --line:#38322B;
  --ink:#F6F2EA; --muted:#B4AB9E; --cu:#E08A49; --cub:#C86B32; --wash:#2E2118;
  --good:#7CC79A; --warn:#E5AE55; --bad:#E5907F;
  --serif:"Playfair Display",Georgia,"Times New Roman",serif;
  --sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55}
h1,h2,h3,p,ol,ul{margin:0}
img{max-width:100%;display:block}
button,input{font:inherit;color:inherit}
a{color:var(--cu)}
:focus-visible{outline:2px solid var(--cu);outline-offset:3px}
/* #h1 krijgt bij elke stap programmatisch focus (voor schermlezers), niet via Tab
   (tabindex="-1"): geen zichtbare ring nodig, de pagina scrollt toch al naar boven. */
#h1:focus{outline:none}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;background:var(--cub);color:#150D07;padding:10px 16px;border-radius:999px;z-index:20;font-weight:600;text-decoration:none}
.skip:focus{top:12px}
.wrap{max-width:1160px;margin-inline:auto;padding-inline:20px}

/* header & footer */
.site-head{max-width:1160px;margin-inline:auto;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand svg{width:26px;height:27px;flex:0 0 auto}
.brand span{display:grid;line-height:1.2}
.brand b{font-weight:600;font-size:15px}
.brand small{font-size:12.5px;color:var(--muted)}
.site-foot{border-top:1px solid var(--line);margin-top:24px}
.site-foot .in{max-width:1160px;margin-inline:auto;padding:36px 20px 56px;display:grid;gap:18px;color:var(--muted);font-size:14px}
.site-foot img{width:min(280px,72vw);height:auto}
.site-foot p{max-width:64ch}

/* hero */
.hero{display:grid;gap:32px;padding-block:8px 48px;align-items:center}
@media (min-width:900px){.hero{grid-template-columns:1.05fr .95fr;gap:64px;padding-block:24px 72px}}
.kick{font:600 12px/1.2 var(--sans);letter-spacing:.09em;text-transform:uppercase;color:var(--cu)}
.display{font:500 clamp(38px,6.2vw,60px)/1.06 var(--serif);letter-spacing:-.01em;text-wrap:balance;margin-block:14px 18px}
.display em,.q em{font-style:italic;color:var(--cu)}
.lede{font-size:18px;color:var(--muted);max-width:52ch}
.hero-text{display:grid;gap:20px;align-content:start}
.hero-text .display{margin:0}
.three{list-style:none;padding:0;display:grid;gap:16px}
.three li{display:flex;gap:16px;align-items:flex-start}
.three .n{flex:0 0 24px;font:500 32px/1 var(--serif);color:var(--cu)}
.three b{display:block}
.three span:not(.n){color:var(--muted);font-size:15px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.hero-photo{margin:0;border-radius:28px;overflow:hidden;border:1px solid var(--line)}
.hero-photo img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;object-position:38% 50%}
@media (max-width:899px){.hero-photo img{aspect-ratio:1/1}}

/* flow */
.flow{max-width:720px;margin-inline:auto;padding:12px 20px 56px;display:grid;gap:22px;align-content:start}
.stephead{display:grid;gap:12px}
.stephead .row{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--muted)}
.linkbtn{background:none;border:0;color:var(--muted);cursor:pointer;padding:8px 0;min-height:40px;text-decoration:none;font-size:14px}
.linkbtn:hover{color:var(--ink)}
.linkbtn.center{justify-self:center}
.prog{display:grid;grid-template-columns:repeat(6,1fr);gap:5px}
.prog i{height:4px;border-radius:4px;background:var(--line)}
.prog i.on{background:var(--cu)}
.q{font:500 clamp(28px,4.6vw,38px)/1.15 var(--serif);text-wrap:balance}
.q.s{font-size:23px}
.help{font-size:15px;color:var(--muted)}
.help.strong{color:var(--ink)}
.help.small,.small{font-size:13.5px}
.micro{font-size:14px;color:var(--muted);text-align:center}
.micro.left{text-align:left}
.lbl{font-size:15px;font-weight:600}
.field{display:grid;gap:9px}
.sec{margin-top:10px}
h2.kick.sec{font:600 12px/1.2 var(--sans)}

/* options */
.opts{display:grid;gap:10px}
.opt{position:relative;display:flex;align-items:center;gap:14px;padding:14px 16px;min-height:56px;border:1px solid var(--line);background:var(--surface);border-radius:18px;cursor:pointer}
.opt:hover{border-color:#54493D}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt .ic{flex:0 0 22px;height:22px;border-radius:50%;border:1.5px solid var(--muted)}
.opt b{display:block;font-weight:600;font-size:16px}
.opt small{display:block;font-size:14px;color:var(--muted);line-height:1.4}
.opt .side{margin-left:auto;font-weight:600;font-size:14px;color:var(--cu);white-space:nowrap;text-align:right}
.opt:has(input:checked){background:var(--wash);border-color:var(--cu)}
.opt:has(input:checked) .ic{border-color:var(--cu);background:radial-gradient(circle,var(--cu) 0 4.5px,transparent 5.5px)}
.opt:has(input:focus-visible){outline:2px solid var(--cu);outline-offset:3px}
.seg{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--surface)}
.seg.two{grid-template-columns:1fr 1fr}
.seg.four{grid-template-columns:repeat(4,1fr)}
.seg label{position:relative;display:flex;border-right:1px solid var(--line)}
.seg label:last-child{border-right:0}
.seg input{position:absolute;opacity:0;inset:0;cursor:pointer}
.seg span{flex:1;display:grid;place-items:center;text-align:center;min-height:52px;padding:8px 6px;font-size:14.5px;line-height:1.25}
.seg input:checked + span{background:var(--wash);color:var(--cu);font-weight:600}
.seg input:focus-visible + span{outline:2px solid var(--cu);outline-offset:-3px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips label{position:relative}
.chips input{position:absolute;opacity:0;inset:0;cursor:pointer}
.chips span{display:inline-flex;align-items:center;min-height:44px;padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-size:15px}
.chips input:checked + span{background:var(--wash);border-color:var(--cu);color:var(--cu)}
.chips input:focus-visible + span{outline:2px solid var(--cu);outline-offset:3px}
.stepper{display:flex;align-items:center;gap:16px}
.stepper button{width:52px;height:52px;border-radius:50%;border:1px solid var(--line);background:var(--surface);font-size:24px;cursor:pointer}
.stepper button:hover{border-color:var(--cu)}
.stepper output{font:700 34px var(--sans);min-width:44px;text-align:center;font-variant-numeric:tabular-nums}

/* inputs, buttons */
.inp{width:100%;min-height:52px;border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:0 16px;font-size:16px;color:var(--ink)}
.inp:focus{outline:none;border-color:var(--cu);box-shadow:0 0 0 3px rgba(224,138,73,.25)}
.inp:disabled{opacity:.6}
.inp[aria-invalid="true"]{border-color:var(--bad)}
.inputrow{display:flex;align-items:center;gap:12px}
.inputrow .inp{max-width:220px}
.unit{color:var(--muted);font-size:14px}
.err{color:var(--bad);font-size:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;font:600 16px var(--sans);min-height:52px;border-radius:999px;padding:0 26px;cursor:pointer;border:1px solid transparent;text-decoration:none;transition:background .2s,opacity .2s}
.btn.primary{background:var(--cub);color:#150D07}
.btn.primary:hover:not(:disabled){background:#D97B40}
.btn.ghost{background:transparent;border-color:var(--cu);color:var(--cu)}
.btn.ghost:hover{background:var(--wash)}
.btn.wide{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed}
.nav{display:flex;gap:12px}
.nav .primary{flex:1}
.row{display:flex;gap:12px;flex-wrap:wrap}
.hint{font-size:14px;color:var(--muted);text-align:center;min-height:20px}
.check{position:relative;display:flex;gap:14px;align-items:flex-start;font-size:14.5px;color:var(--muted);cursor:pointer}
.check input{position:absolute;opacity:0;width:24px;height:24px}
.check .box{flex:0 0 24px;height:24px;border-radius:7px;border:1.5px solid var(--cu);display:grid;place-items:center;margin-top:1px}
.check input:checked + .box{background:var(--cub)}
.check input:checked + .box::after{content:"✓";color:#150D07;font-size:15px;font-weight:700}
.check input:focus-visible + .box{outline:2px solid var(--cu);outline-offset:3px}
.leadform{display:grid;gap:18px}

/* notes, accordions */
.note{display:grid;gap:6px;border:1px dashed #5B5145;border-radius:18px;padding:14px 16px;font-size:15px;color:var(--muted)}
.note[hidden],[hidden]{display:none!important}
.note .nl{font:600 11.5px/1 var(--sans);letter-spacing:.09em;text-transform:uppercase;color:var(--cu)}
.note b{color:var(--ink)}
.acc{border:1px solid var(--line);border-radius:18px;background:var(--surface);overflow:hidden}
.acc summary{list-style:none;cursor:pointer;padding:15px 18px;font-weight:600;display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:54px}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+";color:var(--cu);font-size:22px}
.acc[open] summary::after{content:"–"}
.acc .in{padding:0 18px 18px;display:grid;gap:14px;color:var(--muted);font-size:15px}
.plain{padding-left:20px;display:grid;gap:4px}

/* results */
.card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:18px;display:grid;gap:8px;align-content:start}
.card.hl{background:var(--wash);border-color:var(--cu)}
.card .v{font:700 26px/1.1 var(--sans);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.card small{font-size:14px;color:var(--muted)}
.hero-card{padding:22px;gap:14px}
.verdict{display:inline-flex;align-items:center;gap:9px;justify-self:start;border-radius:999px;padding:7px 14px;font:600 14px var(--sans);border:1px solid}
.verdict i{width:9px;height:9px;border-radius:50%;background:currentColor}
.verdict.good{color:var(--good);border-color:rgba(124,199,154,.5)}
.verdict.warn{color:var(--warn);border-color:rgba(229,174,85,.5)}
.verdict.bad{color:var(--bad);border-color:rgba(229,144,127,.5)}
.stats{display:grid}
.stat{display:grid;grid-template-columns:1fr auto;align-items:baseline;gap:2px 14px;padding:14px 0;border-top:1px solid var(--line)}
.stat:first-child{border-top:0}
.stat .l{font-size:15px;color:var(--muted)}
.stat .v{font:700 clamp(28px,5vw,34px)/1.1 var(--sans);font-variant-numeric:tabular-nums;letter-spacing:-.02em;text-align:right}
.stat .v small{font-size:15px;font-weight:500;color:var(--muted)}
.stat .s{grid-column:1/-1;font-size:14px;color:var(--muted)}
.stat.key .v{color:var(--cu)}
.stat.single{border:0;padding:0}
.contactline{font-size:14.5px;color:var(--muted)}
.contactline a{color:var(--cu);text-decoration:underline}
.certainty{display:grid;gap:8px}
.meter3{display:grid;grid-template-columns:repeat(3,1fr);gap:5px}
.meter3 i{height:8px;border-radius:5px;background:var(--line)}
.meter3 i.on{background:var(--cu)}
.meter3l{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;font-size:12.5px;color:var(--muted);text-align:center}
.compare{display:grid;gap:14px}
.cmp{display:grid;gap:7px}
.cmp .h{display:flex;justify-content:space-between;font-size:15px;color:var(--muted)}
.cmp .h b{color:var(--ink);font-variant-numeric:tabular-nums}
.cmp .t{height:16px;border-radius:9px;background:var(--surface2);overflow:hidden}
.cmp .t i{display:block;height:100%;border-radius:9px}
.receipt{background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden}
.receipt .r{display:flex;justify-content:space-between;gap:14px;padding:14px 18px;border-top:1px solid var(--line);font-size:15px}
.receipt .r:first-child{border-top:0}
.receipt .r b{font-variant-numeric:tabular-nums;white-space:nowrap}
.receipt .r small{color:var(--muted)}
.receipt .r.tot{background:var(--wash);font-weight:600;font-size:16px}
.receipt .r.tot b{color:var(--cu);font-size:19px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:420px){.two{grid-template-columns:1fr}}
.rows{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--surface)}
.rows .r{display:grid;grid-template-columns:1fr auto;gap:3px 12px;padding:14px 18px;border-top:1px solid var(--line);font-size:15px}
.rows .r:first-child{border-top:0}
.rows .r.on{background:var(--wash)}
.rows .r small{grid-column:1/-1;color:var(--muted);font-size:14px}
.rows .r b{font-variant-numeric:tabular-nums}
.svgc{width:100%;height:auto;display:block}
.svgc text{font:400 10px var(--sans);fill:var(--muted)}
.svgc text.em{fill:var(--ink);font-weight:600}
.tog{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 18px;border:1px solid var(--line);background:var(--surface);border-radius:18px;cursor:pointer;min-height:58px}
.tog small{display:block;color:var(--muted);font-size:14px}
.tog input{position:absolute;opacity:0;inset:0;cursor:pointer;margin:0}
.tog .sw2{flex:0 0 46px;height:28px;border-radius:28px;background:var(--line);position:relative}
.tog .sw2::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:transform .2s}
.tog input:checked ~ .sw2{background:var(--cub)}
.tog input:checked ~ .sw2::after{transform:translateX(18px)}
.tog:has(input:focus-visible){outline:2px solid var(--cu);outline-offset:3px}
.plantop{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.plantop .who{color:var(--muted);font-size:15px;margin-top:4px}
.cta-card{background:#000;padding:24px;gap:14px}
.calc-list{list-style:none;padding:0;display:grid;gap:16px}
.calc-list li{display:flex;align-items:center;gap:14px;font-size:17px}
.calc-list .ck{width:24px;height:24px;border-radius:50%;border:1.5px solid var(--line);display:grid;place-items:center;font-size:13px;color:transparent;animation:tick .35s forwards}
.calc-list li:nth-child(1) .ck{animation-delay:.3s}.calc-list li:nth-child(2) .ck{animation-delay:.95s}
.calc-list li:nth-child(3) .ck{animation-delay:1.6s}.calc-list li:nth-child(4) .ck{animation-delay:2.25s}
@keyframes tick{to{background:var(--cub);border-color:var(--cub);color:#150D07}}
.bar{height:6px;border-radius:6px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--cu);border-radius:6px;transition:width 2.6s linear}
.calc{padding-top:40px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation-duration:.01s!important;animation-delay:0s!important}}