/* BioKcal Fuels — shared styles
   Values are copied from the design files in design-files/. Keep them identical. */

/* ---------- Font fallback (stops text jumping when Space Grotesk loads) ----------
   Metrics measured from the Space Grotesk latin woff2 against Arial / Arial Bold. */
@font-face{font-family:"Space Grotesk Fallback";src:local("Arial"),local("ArialMT"),local("Helvetica");font-weight:100 550;size-adjust:108.93%;ascent-override:90.33%;descent-override:26.81%;line-gap-override:0%}
@font-face{font-family:"Space Grotesk Fallback";src:local("Arial Bold"),local("Arial-BoldMT"),local("Helvetica Bold");font-weight:551 900;size-adjust:101.99%;ascent-override:96.48%;descent-override:28.63%;line-gap-override:0%}

/* ---------- Base (from the design <helmet>) ----------
   :where() keeps the link hover rule at low specificity, so links whose colour is set by a
   class keep that colour on hover — exactly like the inline styles in the design did. */
html{scroll-behavior:smooth}
body{margin:0;background:#F3F2EE}
:where(a){color:#16181A}
:where(a):hover{color:#2A5E37}
summary{cursor:pointer}
input,select,textarea,button{font-family:inherit}
img{max-width:100%}
picture{display:contents}
picture>source{display:none}
[hidden]{display:none!important}

.page{font-family:'Space Grotesk','Space Grotesk Fallback',sans-serif;color:#16181A;background:#F3F2EE;width:100%;overflow-x:clip;font-size:17px;line-height:1.55}

/* Visible keyboard focus */
:focus-visible{outline:3px solid #2E7D46;outline-offset:2px;border-radius:4px}
.dark :focus-visible{outline-color:#95C98F}

.skip-link{position:absolute;left:12px;top:-60px;z-index:100;padding:10px 16px;border-radius:8px;background:#F3F2EE;color:#16181A;font-weight:700;text-decoration:none}
.skip-link:focus{top:12px}

/* Visually hidden (honeypot, screen-reader text) */
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Things that only make sense with JavaScript on */
html:not(.js) .js-only{display:none!important}

/* ---------- Layout helpers ---------- */
.wrap{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}
/* min(...,100%) = identical at ≥390px, but no sideways scroll on narrower phones */
.grid-fit-320{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr))}
.grid-fit-340{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(340px,100%),1fr))}
.stack{display:flex;flex-direction:column}

/* ---------- Type ---------- */
.eyebrow{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#2A5E37;font-weight:600}
.eyebrow--light{color:#95C98F}
.h2{margin:0;font-weight:700;font-size:clamp(30px,4vw,46px);line-height:1.05;letter-spacing:-.015em;color:#16181A}
.h2--light{color:#F3F2EE}
.accent{color:#95C98F}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;border-radius:8px;text-decoration:none;font-weight:700}
.btn--sm{min-height:44px;padding:0 18px;font-size:15px}
.btn--lg{min-height:52px;padding:0 24px;font-size:16px}
.btn--xl{min-height:54px;padding:0 28px;font-size:17px}
.btn--green{background:#2E7D46;color:#F3F2EE}
.btn--ink{background:#16181A;color:#F3F2EE}
.btn--outline-light{border:1.5px solid #F3F2EE;color:#F3F2EE}
.btn--outline-ink{border:1.5px solid #16181A;color:#16181A}
.text-link{align-self:flex-start;display:inline-flex;align-items:center;min-height:44px;font-weight:700}

/* ---------- Header ---------- */
.site-header{background:#16181A;border-bottom:1px solid #2A2C30}
.site-header__bar{max-width:1240px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#F3F2EE}
.logo img{display:block;height:34px;width:auto}
.nav-links{display:flex;gap:22px;flex-wrap:wrap;font-size:15px;font-weight:500}
.nav-links a{text-decoration:none;color:#E4E3DD}
.nav-links a[aria-current="page"]{color:#95C98F;font-weight:700}
.nav-mobile{display:none;gap:8px;overflow-x:auto;padding:0 24px 14px}
.nav-mobile a{flex:0 0 auto;display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border-radius:999px;border:1px solid #3A3C41;text-decoration:none;color:#E4E3DD;font-size:14px;white-space:nowrap}
.nav-mobile a[aria-current="page"]{color:#95C98F}
@media (max-width:760px){.nav-links{display:none!important}.nav-mobile{display:flex!important}}

/* ---------- Footer ---------- */
.site-footer{background:#16181A;color:#C9C8C2}
.site-footer__grid{max-width:1240px;margin:0 auto;padding:48px 24px 32px;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px;font-size:15px}
.site-footer__col{display:flex;flex-direction:column;gap:8px}
.site-footer__logo{display:block;height:32px;width:auto;align-self:flex-start}
.site-footer a{color:#C9C8C2}
.site-footer nav a{text-decoration:none}
.site-footer .site-footer__wa{color:#95C98F;font-weight:600;text-decoration:none}
.site-footer__head{color:#F3F2EE;font-weight:600}
.site-footer__note{max-width:1240px;margin:0 auto;padding:0 24px 32px;font-size:13px;color:#8F8E88}

/* ---------- Brand-mark watermarks ---------- */
.has-bk{position:relative;overflow:hidden;isolation:isolate}
.bk{position:absolute;z-index:-1;pointer-events:none;width:auto;max-width:none}

/* ---------- Enquiry band + forms ---------- */
.enquiry{background:#1F3D27;color:#F3F2EE}
.form-card{background:#F3F2EE;border-radius:14px;padding:28px}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field--full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:#3A3B3D}
.input{min-height:48px;padding:10px 12px;border-radius:8px;border:1px solid #BDBAB1;background:#FFFFFF;color:#16181A;font-size:16px;width:100%;box-sizing:border-box}
textarea.input{min-height:96px}
.form-actions{grid-column:1/-1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.btn-submit{min-height:52px;padding:0 28px;border-radius:8px;border:none;background:#2E7D46;color:#F3F2EE;font-weight:700;font-size:16px;cursor:pointer}
.btn-submit[disabled]{opacity:.7;cursor:progress}
.form-note{font-size:14px;color:#5C5A54}
.form-error{grid-column:1/-1;margin:0;font-size:15px;font-weight:600;color:#8E2A1E}
.form-thanks{display:flex;flex-direction:column;gap:8px;color:#16181A}
.form-thanks__title{margin:0;font-size:24px;font-weight:700;line-height:1.2}
.form-thanks p{margin:0;font-size:16px;color:#3A3B3D}
.form-thanks:focus{outline:none}

/* ---------- Motion (from home.design.html) ---------- */
@keyframes kb{from{transform:scale(1.08)}to{transform:scale(1)}}
@keyframes heroIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes swapIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes rise{from{opacity:0;transform:translateY(36px)}to{opacity:1;transform:none}}
@keyframes itemUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
@keyframes slideL{from{opacity:0;transform:translateX(-56px)}to{opacity:1;transform:none}}
@keyframes slideR{from{opacity:0;transform:translateX(56px)}to{opacity:1;transform:none}}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}

.hero-bg{animation:kb 14s cubic-bezier(.2,.7,.2,1) both}
.hero-in>*{animation:heroIn 700ms cubic-bezier(.2,.7,.2,1) both}
.hero-in>*:nth-child(2){animation-delay:80ms}
.hero-in>*:nth-child(3){animation-delay:160ms}
.hero-in>*:nth-child(4){animation-delay:240ms}
.hero-in>*:nth-child(5){animation-delay:320ms}
.hero-card{animation:heroIn 900ms 200ms cubic-bezier(.2,.7,.2,1) both}
.swap{animation:swapIn 400ms cubic-bezier(.2,.7,.2,1) both}
.marquee{animation:marquee 28s linear infinite}
.marquee:hover{animation-play-state:paused}

/* Scroll-driven reveals (Chrome/Edge). Fill is "backwards" rather than the design's "both":
   the end state is identical, and the hover lift on cards still works after the reveal. */
@supports (animation-timeline: view()){
  .reveal{animation:rise linear backwards;animation-timeline:view();animation-range:entry 0% cover 22%}
  .slide-l{animation:slideL linear backwards;animation-timeline:view();animation-range:entry 0% cover 28%}
  .slide-r{animation:slideR linear backwards;animation-timeline:view();animation-range:entry 0% cover 28%}
  .item-up{animation:itemUp linear backwards;animation-timeline:view();animation-range:entry 5% cover 20%}
}
/* Fallback for Safari/Firefox: site.js adds .io-reveal to <html> and .is-in when in view */
.io-reveal :is(.reveal,.slide-l,.slide-r,.item-up):not(.is-in){opacity:0}
.io-reveal :is(.reveal,.slide-l,.slide-r,.item-up).is-in{animation:fadeUp 700ms cubic-bezier(.2,.7,.2,1) backwards;animation-delay:var(--d,0ms)}

.lift{transition:transform 200ms ease,box-shadow 200ms ease}
.lift:hover{transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(46,125,70,.45)}
.lift-card{transition:transform 250ms cubic-bezier(.2,.7,.2,1),box-shadow 250ms ease}
.lift-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px -18px rgba(22,24,26,.45)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .hero-bg,.hero-in>*,.hero-card,.swap,.marquee,.reveal,.slide-l,.slide-r,.item-up,
  .io-reveal :is(.reveal,.slide-l,.slide-r,.item-up){animation:none!important;opacity:1!important}
  .lift:hover,.lift-card:hover{transform:none}
  .dot,.pt .pm{transition:none!important}
}

/* =====================================================================
   HOME PAGE
   ===================================================================== */

/* Hero */
.hero{background:#16181A;color:#F3F2EE;position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 40%}
.hero__shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(22,24,26,.96) 0%,rgba(22,24,26,.86) 42%,rgba(22,24,26,.6) 100%)}
.hero__inner{max-width:1240px;margin:0 auto;padding:88px 24px 96px;position:relative;gap:56px;align-items:center}
.hero-in{display:flex;flex-direction:column;gap:22px}
.hero__kicker{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#A9A8A2}
.hero__title{margin:0;font-weight:700;font-size:clamp(40px,6.4vw,84px);line-height:1;letter-spacing:-.02em}
.hero__lead{margin:0;font-size:19px;max-width:540px;color:#C9C8C2}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.hero__bulk{font-size:15px;color:#E4E3DD}
.hero__bulk a{color:#95C98F;font-weight:700;text-decoration:none}
.hero__foot{font-size:14px;color:#A9A8A2}

.dark-card{background:#222428;border:1px solid #34363A;box-shadow:0 30px 60px -30px rgba(0,0,0,.7)}
.hero-card{border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:16px}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.card-kicker{font-size:13px;letter-spacing:.06em;text-transform:uppercase;color:#A9A8A2}
.match-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:#2B3A2A;color:#A7E3A0;font-size:13px;font-weight:600}
.batch-scroll{overflow-x:auto}
.batch{min-width:440px;display:grid;grid-template-columns:1.15fr 1fr 1fr 1fr;font-size:15px;font-variant-numeric:tabular-nums}
.batch>div{padding:12px 8px;border-bottom:1px solid #2E3034}
.batch>div:nth-child(4n+1){padding-left:0}
.batch .th{padding-top:10px;padding-bottom:10px;color:#A9A8A2;font-size:13px;border-bottom-color:#3A3C41}
.batch .mkt{color:#F2A99E;background:rgba(196,64,44,.12)}
.batch .bio{color:#95C98F;font-weight:600;background:rgba(149,201,143,.10)}
.batch .last{border-bottom:0}
.card-note{font-size:14px;color:#A9A8A2}

/* Ticker */
.ticker{background:#1F3D27;color:#F3F2EE;overflow:hidden}
.marquee{display:flex;width:max-content;padding:18px 0;font-size:16px;font-weight:600}
.marquee__set{display:flex}
.marquee__set span{display:inline-flex;align-items:center;gap:14px;padding-right:48px;white-space:nowrap}
.marquee__set span::before{content:"";width:8px;height:8px;border-radius:2px;background:#95C98F;display:inline-block}

/* Audience cards */
.audience{padding-top:48px;gap:16px}
.aud-card{display:flex;flex-direction:column;gap:10px;padding:28px;border-radius:14px;text-decoration:none}
.aud-card--light{border:1.5px solid #16181A;color:#16181A}
.aud-card--dark{background:#16181A;color:#F3F2EE}
.aud-card .bk{height:150%;right:-50px;bottom:-45%}
.aud-card__title{font-size:26px;font-weight:700;line-height:1.15}
.aud-card__text{font-size:16px;color:#3A3B3D}
.aud-card--dark .aud-card__text{color:#C9C8C2}
.aud-card__cta{margin-top:6px;font-weight:700}
.aud-card--dark .aud-card__cta{color:#95C98F}

/* Industries */
.industries{padding-top:64px;display:flex;flex-direction:column;gap:14px}
.industries__list{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.industries__list li{padding:7px 14px;border-radius:8px;background:#E8EFE6;border:1px solid #CFDDCB;color:#1F3D27;font-size:15px;font-weight:600;line-height:1.3;white-space:nowrap}

/* Problem */
.problem{padding-top:96px;padding-bottom:96px;gap:56px;align-items:center}
.problem__title{margin:0;font-weight:700;font-size:clamp(36px,4.5vw,56px);line-height:1;letter-spacing:-.015em}
.problem__text{margin:0;font-size:18px;color:#3A3B3D}
.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 24px}
.stat{padding:18px 0 0;border-top:2px solid #16181A;display:flex;flex-direction:column;gap:6px}
.stat__num{font-size:clamp(30px,3.4vw,44px);font-weight:700;line-height:1;color:#2E7D46;font-variant-numeric:tabular-nums}
.stat__num--plain{font-variant-numeric:normal}
.stat__label{font-size:15px;color:#3A3B3D}

/* Promise */
.alt-band{background:#E9E7E0}
.promise{padding-top:56px;padding-bottom:56px;gap:48px;align-items:center}
.points{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:28px 24px}
.point{display:flex;flex-direction:column;gap:8px;padding-top:16px;border-top:3px solid #2E7D46}
.point__num{font-size:14px;font-weight:700;color:#2A5E37}
.point h3{margin:0;font-size:20px;font-weight:700}
.point p{margin:0;font-size:15px;color:#3A3B3D}
.photo{display:block;width:100%;height:100%;object-fit:cover;border-radius:12px}
.promise__photo{min-height:320px}

/* Pellet tabs */
.fuels{padding-top:48px;padding-bottom:88px;display:flex;flex-direction:column;gap:28px}
.tabs{display:flex;gap:12px;flex-wrap:wrap}
.tab{background:transparent;color:#16181A;border:1.5px solid #BDBAB1;border-radius:12px;padding:16px 20px;min-height:64px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:2px;flex:1 1 240px}
.tab[aria-selected="true"]{background:#16181A;color:#F3F2EE;border-color:#16181A}
.tab__name{font-size:20px;font-weight:700}
.tab__sub{font-size:14px;opacity:.8}
.js .tabpanel:not(.is-active){display:none}
html:not(.js) .tabpanel+.tabpanel{margin-top:40px}
.tabpanel{gap:40px;align-items:center}
.tabpanel__photo{min-height:360px}
.tabpanel__body{display:flex;flex-direction:column;gap:18px}
.tabpanel__title{margin:0;font-size:clamp(28px,3.2vw,40px);font-weight:700;line-height:1.05}
.tabpanel__text{margin:0;font-size:18px;color:#3A3B3D}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.chips li{padding:6px 12px;border-radius:999px;background:#E9E7E0;font-size:14px;font-weight:500}
.specs-toggle{align-self:flex-start;min-height:44px;padding:0;border:none;background:none;font-size:16px;font-weight:700;color:#2A5E37;cursor:pointer;text-decoration:underline;text-underline-offset:4px}
.specs[hidden]{display:none}
.specs{display:flex;flex-direction:column;gap:0;border-top:1px solid #CFCCC3}
.spec{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid #CFCCC3;font-size:15px;flex-wrap:wrap}
.spec dt{font-weight:600}
.spec dd{margin:0;color:#3A3B3D}
.specs dl{margin:0}

/* Purchase teams */
.purchase{padding-top:88px;padding-bottom:88px;gap:48px;align-items:start}
.purchase__text{margin:0;font-size:18px;color:#3A3B3D;max-width:460px}
.acc{display:flex;flex-direction:column;border-bottom:1px solid #C9C8C2}
.pt{border-top:1px solid #C9C8C2;padding:18px 0}
.pt summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:19px;font-weight:700;min-height:44px}
.pt summary::-webkit-details-marker{display:none}
.pt .pm{flex:0 0 auto;font-size:24px;font-weight:500;color:#2A5E37;transition:transform 200ms ease}
.pt[open] .pm{transform:rotate(45deg)}
.pt p{margin:8px 0 0;font-size:16px;color:#3A3B3D;max-width:560px}

/* Steam-cost band */
.ink-band{background:#16181A;color:#F3F2EE}
.calc-band{padding-top:96px;padding-bottom:96px;gap:56px;align-items:center}
.calc-band__title{margin:0;font-weight:700;font-size:clamp(34px,4.6vw,58px);line-height:1.02;letter-spacing:-.02em}
.calc-band__text{margin:0;font-size:18px;color:#C9C8C2;max-width:560px}
.calc-band__note{font-size:14px;color:#A9A8A2}
.example{border-radius:16px;padding:26px;display:flex;flex-direction:column;gap:20px}
.example .bk{height:120%;right:-70px;top:-10%}
.dots{display:flex;gap:6px}
.dot{display:block;width:6px;height:6px;border-radius:999px;background:#4A4C52;transition:width 300ms ease,background 300ms ease}
.dot.is-on{width:18px;background:#95C98F}
.ex-boxes{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
.ex-box{border:1px solid #3A3C41;border-radius:10px;padding:14px}
.ex-box__label{font-size:13px;color:#A9A8A2}
.ex-box__val{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums}
.ex-costs{border-top:1px dashed #3A3C41;padding-top:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.ex-costs__label{font-size:14px;color:#A9A8A2}
.ex-costs__val{font-size:clamp(30px,3.4vw,42px);font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1}
.ex-costs__val--pel{color:#95C98F}
.ex-costs__unit{font-size:14px;color:#A9A8A2;font-weight:500}
.ex-bar{height:8px;border-radius:999px;background:#34363A;overflow:hidden}
.ex-bar__fill{height:100%;background:#95C98F;border-radius:999px}
.ex-save{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:15px}
.ex-save__label{color:#C9C8C2}
.ex-save__val{font-weight:700;color:#95C98F;font-variant-numeric:tabular-nums}
.ex-fine{font-size:12px;color:#8F8E88}

/* Coal link bar */
.coal-link{padding-top:40px}
.coal-link a{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:22px 0;border-top:2px solid #16181A;border-bottom:2px solid #16181A;text-decoration:none;color:#16181A}
.coal-link__title{font-size:clamp(20px,2.4vw,28px);font-weight:700}
.coal-link__cta{font-weight:700;color:#2A5E37}

/* How it works */
.how{padding-top:72px;padding-bottom:88px;display:flex;flex-direction:column;gap:24px}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));border-top:1.5px solid #16181A;margin:0;padding:0;list-style:none}
.step{padding:22px 22px 22px 0;display:flex;flex-direction:column;gap:8px}
.step__num{font-size:15px;color:#2A5E37;font-weight:700}
.step h3{margin:0;font-size:20px;font-weight:700}
.step p{margin:0;font-size:16px;color:#3A3B3D}

/* Home enquiry */
.enquiry .bk{height:150%;left:-60px;top:-25%}
.enquiry__inner{padding-top:80px;padding-bottom:80px;gap:48px;align-items:start}
.enquiry__title{margin:0;font-weight:700;font-size:clamp(36px,5vw,60px);line-height:1;letter-spacing:-.02em}
.enquiry__lead{margin:0;font-size:18px}
.enquiry__small{margin:0;font-size:14px}

/* =====================================================================
   INNER PAGES — shared pieces (dark page hero, FAQ, enquiry band)
   ===================================================================== */
.page-hero{background:#16181A;color:#F3F2EE}
.page-hero .bk{height:140%;right:4%;top:-20%}
.page-hero__title{margin:0;font-weight:700;line-height:1;letter-spacing:-.02em}

/* FAQ accordions. The design's 18px padding sits on <details>; here it is moved onto <summary>
   so the whole row is the tap target (same look, ≥44px high). */
.faq{padding-top:88px;padding-bottom:88px;display:flex;flex-direction:column;gap:20px}
.faq details{border-bottom:1px solid #CFCCC3}
.faq summary{font-size:18px;font-weight:600;min-height:28px;padding:18px 0}
.faq details[open]{padding-bottom:18px}
.faq details p{margin:-6px 0 0;font-size:16px;color:#3A3B3D;max-width:860px}

.enq{padding-top:72px;padding-bottom:72px;gap:40px;align-items:start}
.enq__title{margin:0;font-weight:700;font-size:clamp(32px,4.4vw,52px);line-height:1}
.enq__lead{margin:0;font-size:17px}

/* =====================================================================
   STEAM CALCULATOR
   ===================================================================== */
.calc-panel{display:flex;flex-direction:column;gap:16px;background:#1D1F22;border:1px solid #34363A;border-radius:14px;padding:22px}
.calc-step{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:#95C98F;font-weight:700}
.calc-grid{display:grid;gap:14px}
.calc-grid--200{grid-template-columns:repeat(auto-fit,minmax(min(200px,100%),1fr))}
.calc-grid--150{grid-template-columns:repeat(auto-fit,minmax(min(150px,100%),1fr))}
.cfield{display:flex;flex-direction:column;gap:6px;min-width:0}
.cfield label{font-size:13px;font-weight:600;color:#C9C8C2;letter-spacing:.02em}
.cinput{min-height:50px;padding:10px 12px;border-radius:8px;border:1px solid #3A3C41;background:#222428;color:#F3F2EE;font-size:17px;width:100%;box-sizing:border-box}
.calc-adv{color:#C9C8C2;font-size:15px;border-top:1px solid #34363A}
.calc-adv summary{min-height:32px;padding-top:14px;font-weight:600}

.res-row{padding:18px 0;border-bottom:1px solid #34363A;display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap}
.res-row__label{font-size:15px;color:#C9C8C2}
.res-row__val{font-size:clamp(24px,2.6vw,32px);font-weight:700;color:#F3F2EE}
.res-row__unit{font-size:14px;font-weight:500;color:#A9A8A2}
.breakeven{margin-top:18px;border-radius:12px;padding:20px;background:#2E7D46;color:#F3F2EE;display:flex;flex-direction:column;gap:4px}
.breakeven__val{font-size:clamp(32px,3.6vw,44px);font-weight:700;line-height:1.05}
.quote-box{margin-top:12px;border-radius:12px;padding:18px 20px;border:1.5px solid #95C98F;display:flex;flex-direction:column;gap:4px}
.quote-box__val{font-size:28px;font-weight:700;color:#95C98F}
.quote-box.is-up{border-color:#F2A99E}
.quote-box.is-up .quote-box__val{color:#F2A99E}

/* =====================================================================
   INNER PAGES — Products, How We Work, Coal vs Pellets, Suppliers, Contact
   ===================================================================== */
.sec{padding-top:88px;padding-bottom:88px;display:flex;flex-direction:column}
.gap-20{gap:20px}.gap-24{gap:24px}.gap-28{gap:28px}
.page-hero__lead{margin:0;font-size:19px;color:#C9C8C2;max-width:700px}
.note-sm{margin:0;font-size:14px;color:#5C5A54}
.body-16{margin:0;font-size:16px;color:#3A3B3D}

/* Photo straddling the dark hero and the light page */
.photo-band{background:linear-gradient(#16181A 50%,#F3F2EE 50%)}
.photo-band img{display:block;width:100%;height:clamp(220px,38vw,500px);object-fit:cover;border-radius:14px}

/* Simple bordered / filled cards */
.card-line{border:1.5px solid #16181A;border-radius:12px;padding:24px;display:flex;flex-direction:column;gap:8px}
.card-fill{background:#F3F2EE;border-radius:12px;padding:24px;display:flex;flex-direction:column;gap:8px}
.card-line h3,.card-fill h3{margin:0;font-size:20px;font-weight:700}
.card-line p,.card-fill p{margin:0;font-size:16px;color:#3A3B3D}
.card-dark-line{border:1px solid #3A3C41;border-radius:10px;padding:16px}
.grid-fit-240{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr))}

/* Lists on dark bands */
.dark-list{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:8px;color:#C9C8C2}
.dark-list strong{color:#F3F2EE}

/* Comparison tables (grid of cells inside a scrolling, bordered box) */
.cmp{overflow-x:auto;border:1.5px solid #16181A;border-radius:14px}
.cmp__grid{display:grid}
.cmp__grid>div{padding:14px 16px;font-size:15px;border-bottom:1px solid #D9D7D0}
.cmp__grid>.th{background:#16181A;color:#F3F2EE;font-weight:700;border-bottom:0}
.cmp__grid>.th--muted{color:#A9A8A2}
.cmp__grid>.th--accent{color:#95C98F}
.cmp__grid>.rh{font-weight:600}
.cmp__grid>.hl{background:#E8EFE6}
.cmp__grid>.end{border-bottom:0}

/* Products: use cards */
.use-card{border-radius:14px;padding:30px;display:flex;flex-direction:column;gap:14px}
.use-card--dark{background:#16181A;color:#F3F2EE}
.use-card--light{background:#E9E7E0;color:#16181A}
.use-card img{display:block;width:100%;height:240px;object-fit:cover;border-radius:10px}
.use-card h3{margin:0;font-size:30px;font-weight:700}
.use-card p{margin:0;font-size:17px}
.use-card__facts{display:grid;gap:10px;font-size:15px}
.pill-green{align-self:flex-start;padding:4px 12px;border-radius:999px;background:#2E7D46;color:#F3F2EE;font-size:13px;font-weight:700}

/* Products: grade cards */
.grade{border:1.5px solid #16181A;border-radius:14px;padding:28px;display:flex;flex-direction:column;gap:14px;background:#F3F2EE}
.grade__head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.grade__head h3{margin:0;font-size:24px;font-weight:700}
.grade__tag{padding:4px 10px;border-radius:999px;background:#16181A;color:#F3F2EE;font-size:12px;font-weight:600}
.grade__sub{font-size:14px;color:#2A5E37;font-weight:600}
.grade__stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px}
.grade__stats>div{background:#E9E7E0;border-radius:8px;padding:10px 12px}
.grade__k{font-size:12px;color:#5C5A54}
.grade__v{font-size:15px;font-weight:700}

/* Products: chooser */
.chooser-row{padding:18px 0;border-bottom:1px solid #3A3C41;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:8px}
.chooser-row>div:first-child{color:#C9C8C2}
.chooser-row>div:last-child{font-weight:700;color:#95C98F}
.box-dark{display:flex;flex-direction:column;gap:16px;border:1px solid #3A3C41;border-radius:14px;padding:28px}
.box-dark h3{margin:0;font-size:24px;font-weight:700}

/* Coal vs pellets: pros & cons */
.pc{border-radius:14px;border:1.5px solid #16181A;padding:28px;display:flex;flex-direction:column;gap:16px;background:#F3F2EE}
.pc--green{background:#E8EFE6}
.pc h3{margin:0;font-size:26px;font-weight:700}
.pc__label{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.pc__label--good{color:#2F6B34}
.pc__label--bad{color:#8E2A1E}
.pc ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.verdict{border:1px solid #3A3C41;border-radius:14px;padding:26px}
.verdict h3{margin:0 0 12px;font-size:22px;font-weight:700}
.verdict p{margin:0;color:#C9C8C2}
.verdict--green{border-color:#95C98F}
.verdict--green h3{color:#95C98F}
.verdict--green p{color:#E4E3DD}
.verdict--green .bk{height:160%;right:-40px;top:-30%}

/* Contact: dark form card */
.form-card--dark{background:#222428;border:1px solid #34363A}
.form-card--dark .field label{color:#C9C8C2}
.input--dark{border-color:#3A3C41;background:#222428;color:#F3F2EE}
.form-card--dark .form-note{color:#A9A8A2}
.form-card--dark .form-thanks,.form-card--dark .form-thanks__title{color:#F3F2EE}
.form-card--dark .form-thanks p:not(.form-thanks__title){color:#C9C8C2}
.form-card--dark .form-error{color:#F2A99E}
.form-card--dark .form-error a{color:#95C98F}
.contact-list{display:flex;flex-direction:column;gap:12px;font-size:17px}
.contact-list .muted{color:#C9C8C2}
.contact-list .bright{color:#F3F2EE}
.contact-list .bright a{color:inherit;text-decoration:none}
.contact-list a.email{color:#F3F2EE}

/* =====================================================================
   Owner request 2026-10-03: everything you can click moves up slightly on hover.
   Buttons, tabs and menu items lift; plain text and boxes that go nowhere stay still.
   Only on devices with a real mouse, so taps on phones don't leave things "stuck" up.
   ===================================================================== */
.btn,.btn-submit,.tab,.nav-mobile a,.nav-links a,.coal-link a,.specs-toggle{transition:transform 200ms ease,box-shadow 200ms ease}
.nav-links a{display:inline-block}
@media (hover:hover){
  .btn:hover,.btn-submit:not([disabled]):hover{transform:translateY(-2px);box-shadow:0 10px 24px -10px rgba(46,125,70,.45)}
  .tab:hover{transform:translateY(-2px);box-shadow:0 12px 24px -14px rgba(22,24,26,.45)}
  .nav-mobile a:hover,.nav-links a:hover,.specs-toggle:hover{transform:translateY(-2px)}
  .coal-link a:hover{transform:translateY(-3px)}
}
@media (prefers-reduced-motion:reduce){
  .btn:hover,.btn-submit:hover,.tab:hover,.nav-mobile a:hover,.nav-links a:hover,.coal-link a:hover,.specs-toggle:hover{transform:none}
}

/* Contact: Rahul Amin listed under Ved Patel */
.call-grid{display:grid;grid-template-columns:auto 1fr;column-gap:.35em;row-gap:4px}
.call-grid__next{grid-column:2}

/* Products: small 21:9 pellet photo at the top of each grade card */
.grade__photo{display:block;width:100%;height:auto;aspect-ratio:21/9;object-fit:cover;border-radius:10px;background:#E9E7E0}

/* Footer copyright line (owner request 2026-10-04) */
.site-footer__note:has(+ .site-footer__legal){padding-bottom:8px}
.site-footer__legal{max-width:1240px;margin:0 auto;padding:0 24px 32px;font-size:13px;color:#8F8E88}

/* Floating "Chat on WhatsApp" button on every page (owner request 2026-10-06).
   Pill with label on desktop, round icon on phones. Opens a chat with +91 77779 79051. */
.wa-float{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));z-index:60;display:inline-flex;align-items:center;gap:10px;min-height:56px;padding:0 20px 0 16px;border-radius:999px;background:#2E7D46;color:#F3F2EE;font-family:'Space Grotesk','Space Grotesk Fallback',sans-serif;font-weight:700;font-size:15px;line-height:1;text-decoration:none;box-shadow:0 12px 28px -10px rgba(22,24,26,.55);transition:transform 200ms ease,box-shadow 200ms ease}
.wa-float svg{width:26px;height:26px;flex:0 0 auto}
.wa-float:hover{color:#F3F2EE}
.wa-float:focus-visible{outline:3px solid #95C98F;outline-offset:3px}
@media (hover:hover){.wa-float:hover{transform:translateY(-2px);box-shadow:0 16px 32px -10px rgba(22,24,26,.6)}}
@media (max-width:760px){
  .wa-float{width:56px;padding:0;justify-content:center}
  .wa-float span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
}
@media (prefers-reduced-motion:reduce){.wa-float:hover{transform:none}}
@media print{.wa-float{display:none}}