/* SLSB International – Green Fuel site. Plain CSS, no build step. */
:root{
  --navy:#0b2a5b; --navy-2:#0a3d6b; --teal:#0a5572; --green:#2c9a3c; --green-d:#1f7a2d; --lgreen:#9fd66b;
  --orange:#faa21b; --ink:#1d2733; --grey:#55606d; --line:#dfe5ec; --bg:#f5f8fa; --white:#fff;
  --radius:14px; --shadow:0 6px 24px rgba(11,42,91,.08); --max:1200px;
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --head:'Barlow',var(--font);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);line-height:1.6;background:#fff;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal)}
a:hover{color:var(--green-d)}
h1,h2,h3,h4{font-family:var(--head);line-height:1.15;color:var(--navy);margin:0 0 .5em;font-weight:700}
h1{font-size:clamp(2rem,4.6vw,3.4rem);letter-spacing:-.5px}
h2{font-size:clamp(1.6rem,3vw,2.4rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:8px 14px;z-index:100}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:3px solid var(--orange);outline-offset:2px}

/* Top bar + header */
.topbar{background:var(--navy);color:#cfe0f0;font-size:.85rem}
.topbar .container{display:flex;gap:18px;justify-content:space-between;align-items:center;min-height:38px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none}
.topbar .tb-right{display:flex;gap:18px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:saturate(1.4) blur(6px);border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{height:46px;width:auto}
.brand .brand-gf{height:34px;border-left:1px solid var(--line);padding-left:12px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{color:var(--navy);text-decoration:none;font-weight:600;font-size:.95rem;padding:8px 10px;border-radius:8px}
.nav a:hover,.nav a[aria-current=page]{background:var(--bg);color:var(--green-d)}
.nav .btn{margin-left:8px;color:#fff}
.nav .btn:hover{background:var(--green-d);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 10px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--navy);margin:5px 0;transition:.2s}
@media (max-width:1080px){
  .nav-toggle{display:block}
  .nav{position:fixed;inset:72px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none;max-height:calc(100vh - 72px);overflow:auto}
  .nav.open{display:flex}
  .nav a{padding:12px 10px;font-size:1.05rem}
  .nav .btn{margin:10px 0 0;text-align:center}
  .topbar .tb-left{display:none}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--green);color:#fff;text-decoration:none;font-weight:700;padding:13px 22px;border-radius:999px;border:2px solid var(--green);cursor:pointer;font-size:1rem;font-family:var(--font);transition:.15s}
.btn:hover{background:var(--green-d);border-color:var(--green-d);color:#fff}
.btn-outline{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn-outline:hover{background:var(--navy);border-color:var(--navy);color:#fff}
.btn-light{background:#fff;color:var(--navy);border-color:#fff}
.btn-light:hover{background:var(--lgreen);border-color:var(--lgreen);color:var(--navy)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-ghost:hover{background:#fff;color:var(--navy)}
.btn-sm{padding:8px 14px;font-size:.9rem}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}

/* Sections */
section{padding:72px 0}
.section-alt{background:var(--bg)}
.section-dark{background:linear-gradient(135deg,var(--navy),var(--teal));color:#e8f1f8}
.section-dark h2,.section-dark h3{color:#fff}
.eyebrow{display:inline-block;font-weight:700;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--green-d);margin-bottom:10px}
.section-dark .eyebrow{color:var(--lgreen)}
.lead{font-size:1.15rem;color:var(--grey);max-width:760px}
.section-dark .lead{color:#d3e2ee}
.center{text-align:center}.center .lead{margin-left:auto;margin-right:auto}
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}section{padding:52px 0}}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:28px}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card.media{padding:0;overflow:hidden;display:flex;flex-direction:column}
.card.media .body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column}
.card.media img{aspect-ratio:16/10;object-fit:cover;width:100%}
.icon{width:48px;height:48px;border-radius:12px;background:#e9f6ec;color:var(--green-d);display:grid;place-items:center;margin-bottom:14px}
.icon svg{width:26px;height:26px}
.num{font-family:var(--head);font-weight:800;font-size:2.6rem;color:var(--green);line-height:1}
.section-dark .num{color:var(--lgreen)}
.muted{color:var(--grey)}
.small{font-size:.85rem}
.note{font-size:.82rem;color:var(--grey);font-style:italic}
.section-dark .note{color:#b9cde0}
.tag{display:inline-block;background:#e9f6ec;color:var(--green-d);font-weight:700;font-size:.75rem;padding:4px 10px;border-radius:999px;letter-spacing:.04em}
.tag.navy{background:#e6ecf5;color:var(--navy)}
.tag.orange{background:#fff3e0;color:#9a5a00}
ul.check{list-style:none;padding:0;margin:0 0 1em}
ul.check li{position:relative;padding-left:30px;margin:.45em 0}
ul.check li:before{content:"";position:absolute;left:0;top:.3em;width:18px;height:18px;border-radius:50%;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center/12px no-repeat}
.section-dark ul.check li:before{background-color:var(--lgreen)}

/* Hero */
.hero{position:relative;background:linear-gradient(120deg,#06203f 0%,#0b2a5b 45%,#0a5572 100%);color:#fff;overflow:hidden;padding:0}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;min-height:620px;padding-top:56px;padding-bottom:56px}
.hero h1{color:#fff}
.hero h1 em{font-style:normal;color:var(--lgreen)}
.hero p.lead{color:#d6e5f2}
.hero-img{border-radius:20px;overflow:hidden;box-shadow:0 30px 60px rgba(0,0,0,.35);background:#fff}
.hero-img img{width:100%;aspect-ratio:1/1.04;object-fit:cover}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 0;padding:0;list-style:none}
.badges li{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:7px 14px;font-size:.88rem;font-weight:600}
@media(max-width:900px){.hero .container{grid-template-columns:1fr;min-height:0;padding-top:40px}.hero-img{max-width:520px}}
.page-hero{background:linear-gradient(120deg,#06203f,#0b2a5b 55%,#0a5572);color:#fff;padding:64px 0 56px}
.page-hero h1{color:#fff;margin-bottom:.3em}
.page-hero p{color:#d6e5f2;max-width:760px;font-size:1.12rem;margin:0}
.crumbs{font-size:.85rem;color:#a9c3da;margin-bottom:10px}
.crumbs a{color:#cfe2f3}

/* Stats band */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{padding:22px;border-radius:var(--radius);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14)}
.stat .num{font-size:2.3rem}
.stat p{margin:.4em 0 0;font-size:.95rem}
@media(max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}}

/* Products */
.product{display:grid;grid-template-columns:260px 1fr;gap:32px;align-items:center}
.product-imgs{display:flex;gap:10px;align-items:flex-end;justify-content:center;background:linear-gradient(180deg,#f3f7fa,#e6eef4);border-radius:var(--radius);padding:24px 14px;min-height:260px}
.product-imgs img{max-height:220px;width:auto}
@media(max-width:760px){.product{grid-template-columns:1fr}}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--bg);color:var(--navy);font-weight:700}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:#fff}
.table-wrap table th:first-child,.table-wrap table td:first-child{padding-left:16px}
td.pos{color:var(--green-d);font-weight:700}
.spec{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0 0 1em}
.spec dt{font-weight:700;color:var(--navy)}
.spec dd{margin:0}

/* Steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps .card{position:relative;padding-top:52px}
.steps .card:before{counter-increment:s;content:counter(s);position:absolute;top:18px;left:26px;width:28px;height:28px;border-radius:50%;background:var(--green);color:#fff;font-weight:800;display:grid;place-items:center;font-size:.9rem}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--green-d),var(--green));color:#fff;border-radius:22px;padding:44px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0 0 .2em}
.cta-band p{margin:0;color:#eaf7ec}

/* Bars (charts) */
.bars{display:grid;gap:10px}
.bar-row{display:grid;grid-template-columns:110px 1fr 70px;gap:10px;align-items:center;font-size:.9rem}
.bar{height:14px;background:#e6ecf2;border-radius:999px;overflow:hidden}
.bar span{display:block;height:100%;background:var(--navy);border-radius:999px}
.bar span.g{background:var(--green)}

/* Forms */
label{font-weight:600;color:var(--navy);font-size:.92rem;display:block;margin-bottom:6px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid #c9d3de;border-radius:10px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{border-color:var(--teal);outline:2px solid rgba(10,85,114,.18)}
textarea{min-height:130px;resize:vertical}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}
.alert{border-radius:12px;padding:14px 16px;background:#fff8e6;border:1px solid #f3d48a;color:#6b4a00;font-size:.92rem}
.alert.info{background:#eef5fb;border-color:#bcd6ea;color:#0b3a5c}

/* Footer */
.site-footer{background:#071c3c;color:#b9c8da;padding:60px 0 24px;font-size:.93rem}
.site-footer h4{color:#fff;font-size:1rem;letter-spacing:.04em;margin-bottom:14px}
.site-footer a{color:#dbe7f3;text-decoration:none}
.site-footer a:hover{color:var(--lgreen)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin:.4em 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.82rem}
.social{display:flex;gap:10px;margin-top:14px}
.social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center}
.social svg{width:18px;height:18px;fill:#fff}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* Calculator */
.calc-rows{display:grid;gap:16px}
.calc-row{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);position:relative}
.calc-row .row-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.calc-row .row-head strong{font-family:var(--head);font-size:1.15rem;color:var(--navy)}
.calc-fields{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.calc-fields .w2{grid-column:span 2}
.calc-fields label{font-size:.8rem;margin-bottom:4px}
.calc-fields input,.calc-fields select{padding:9px 10px;font-size:.95rem}
@media(max-width:1000px){.calc-fields{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.calc-fields{grid-template-columns:1fr 1fr}.calc-fields .w2{grid-column:1/-1}}
.unit-wrap{display:flex;gap:6px}.unit-wrap input{flex:1;min-width:0}.unit-wrap select{width:auto}
.row-results{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.row-results div{font-size:.8rem;color:var(--grey)}
.row-results b{display:block;font-size:1.02rem;color:var(--navy)}
.row-results b.pos{color:var(--green-d)}.row-results b.neg{color:#b42318}
@media(max-width:760px){.row-results{grid-template-columns:repeat(2,1fr)}}
.remove-row{background:none;border:1px solid var(--line);border-radius:8px;padding:6px 10px;cursor:pointer;color:var(--grey);font:inherit;font-size:.85rem}
.remove-row:hover{border-color:#b42318;color:#b42318}
.slider-wrap{display:flex;align-items:center;gap:8px}
.slider-wrap input[type=range]{padding:0;accent-color:var(--green)}
.slider-wrap output{min-width:44px;font-weight:700;color:var(--green-d)}
.summary{position:sticky;top:90px}
.summary .card{background:linear-gradient(160deg,var(--navy),var(--teal));color:#e6f0f8;border:0}
.summary h3{color:#fff}
.sum-list{display:grid;gap:10px;margin:0}
.sum-list div{display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:8px;font-size:.93rem}
.sum-list b{color:#fff;text-align:right}
.sum-big{font-family:var(--head);font-size:2.2rem;font-weight:800;color:var(--lgreen);line-height:1.1}
.calc-layout{display:grid;grid-template-columns:1fr 340px;gap:28px;align-items:start}
@media(max-width:1080px){.calc-layout{grid-template-columns:1fr}.summary{position:static}}
.chart{margin-top:16px}
.chart .bar-row{grid-template-columns:90px 1fr 80px;font-size:.8rem;color:#d6e5f2}
.chart .bar{background:rgba(255,255,255,.12)}
.chart .bar span{background:#b9c8da}
.chart .bar span.g{background:var(--lgreen)}
.add-btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}

/* Compare tool */
.cmp-result{margin-top:24px}
.cmp-result table td:first-child{font-weight:700;color:var(--navy);width:22%}
.cmp-result table td{width:39%}
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.78rem;font-weight:700;background:#e6ecf5;color:var(--navy)}
.spinner{display:inline-block;width:18px;height:18px;border:3px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;vertical-align:middle}
@keyframes spin{to{transform:rotate(360deg)}}
.hidden{display:none!important}
.app-card img{aspect-ratio:4/3;object-fit:cover}
.logo-strip{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.logo-strip span{border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-weight:700;color:var(--navy);background:#fff;font-size:.9rem}
.au-badge{display:inline-flex;gap:10px;align-items:center}
.reveal{opacity:1}
@media (prefers-reduced-motion:no-preference){.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}.js .reveal.in{opacity:1;transform:none}}
.split>*,.grid>*,.calc-layout>*{min-width:0}
.product-imgs img{min-width:0;flex:0 1 auto;object-fit:contain}
@media(max-width:560px){.product-imgs img{max-width:32%}.product-imgs{gap:6px;padding:18px 10px;min-height:200px}}

/* Pack galleries (v2) */
.product-hero{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px;display:flex;align-items:center;justify-content:center}
.product-hero img{width:100%;height:auto;display:block}
.product{grid-template-columns:minmax(0,440px) 1fr}
@media(max-width:760px){.product{grid-template-columns:1fr}}
.gallery-h{margin:44px 0 16px;font-size:1.25rem}
.pack-gallery{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}
.pack{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 12px 12px;display:flex;flex-direction:column;align-items:center;text-align:center}
.pack img{height:190px;width:100%;object-fit:contain}
.pack figcaption{margin-top:10px;font-size:.85rem;line-height:1.3;color:var(--grey)}
.pack figcaption b{display:block;font-family:Barlow,sans-serif;font-size:1.15rem;color:var(--navy,#0b2a5b)}
@media(max-width:1000px){.pack-gallery{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:560px){.pack-gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.pack img{height:150px}}
.card.media img.pack-tile{background:#fff;object-fit:contain;padding:10px 14px 0}
.portrait{width:84px;height:84px;border-radius:50%;object-fit:cover;object-position:center 20%;margin-bottom:12px;border:3px solid #fff;box-shadow:0 2px 10px rgba(11,42,91,.15)}
.brand .brand-gf{width:auto}