:root{--ink:#172e29;--green:#0b574a;--lime:#daf29c;--muted:#5e7068;--line:#dce4dd;--pale:#f2f6ee;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;color:var(--ink);background:white;font:16px/1.65 Arial,Helvetica,sans-serif}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.12;letter-spacing:-.045em}h1{font-size:64px;font-weight:650;margin-bottom:25px}h2{font-size:43px;font-weight:600;margin-bottom:22px}h3{font-size:24px;font-weight:600}a{color:inherit;text-decoration:none}p a:not(.button){text-decoration:underline;text-underline-offset:4px}a,button,input,select,textarea{touch-action:manipulation}a:hover{color:var(--green)}button{cursor:pointer;font:inherit}button:disabled{cursor:not-allowed;opacity:.5}input,select,textarea{font:inherit;min-width:0}input:focus,select:focus,textarea:focus{outline:2px solid var(--green);outline-offset:2px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #6b9836;outline-offset:5px}header{position:fixed;top:0;left:0;right:0;background:rgba(255,255,255,.98);border-bottom:1px solid #e9ede8;z-index:20}main{padding-top:98px}.wrap{width:min(1240px,calc(100% - 96px));margin:auto}.header-inner{width:min(1320px,calc(100% - 64px));height:98px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;font-size:29px;line-height:1;letter-spacing:-1.5px;font-weight:750;white-space:nowrap}.brandmark{width:41px;height:44px;display:block;color:var(--green)}.brandmark svg{width:100%;height:100%}.brand .fuel{color:var(--green)}.brand small{font-size:9px;letter-spacing:3px;display:block;font-weight:600;margin-top:6px;color:var(--muted)}header nav{display:flex;gap:26px;align-items:center}header nav a{font-size:14px;font-weight:550;padding:8px 0}header nav a[aria-current]{box-shadow:0 2px var(--green)}.menu{display:none}.skip{position:fixed;top:-80px;background:var(--green);color:white;padding:12px;z-index:100}.skip:focus{top:0}.hero{position:relative;min-height:630px;overflow:hidden;display:flex;align-items:center}.hero-photo{position:absolute;width:69%;height:100%;right:0;top:0;background:url('forecourt.webp') center/cover no-repeat;mask-image:linear-gradient(to right,transparent 0%,#000 43%);-webkit-mask-image:linear-gradient(to right,transparent 0%,#000 43%)}.hero:after{content:'';position:absolute;left:0;right:0;bottom:0;height:70px;background:linear-gradient(transparent,#fff)}.hero-content{position:relative;z-index:2;padding:60px 0 72px}.hero h1{font-size:66px;max-width:650px;line-height:1.05}.hero h1 em{font-style:normal;color:var(--green)}.hero 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p{margin:0;font-size:17px;flex:1}.principle a{font-size:13px;font-weight:600;white-space:nowrap}.small-label{font-size:10px;font-weight:700;letter-spacing:1.5px;color:var(--green)}.section{padding-top:85px;padding-bottom:85px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:65px;margin-bottom:30px}.section-heading>p{max-width:410px;color:var(--muted);font-size:16px}.section-heading h2{margin-bottom:12px}.state-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line);border-radius:4px;overflow:hidden}.state-card{display:block;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px;transition:background .15s}.state-card:hover{background:var(--pale);color:var(--ink)}.state-card h3{font-size:19px;letter-spacing:-.025em;margin:13px 0}.state-card p{font-size:13px;line-height:1.6;color:var(--muted);margin-bottom:20px}.state-card strong{font-size:12px;color:var(--green)}.state-code{font-size:11px;letter-spacing:1px;font-weight:700;color:var(--green);background:var(--pale);padding:5px 8px;border-radius:3px}.compact .state-card{padding:24px}.fineprint{font-size:12px;line-height:1.7;color:var(--muted);margin:20px 0 0}.pale{background:var(--pale)}.split{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}.split h2{max-width:550px}.split .lead{font-size:18px;max-width:490px}.example{background:white;padding:32px;border-radius:8px;box-shadow:0 15px 40px #19372b09;align-self:center}.example-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:10px;letter-spacing:1.5px;font-weight:700;color:var(--muted)}.pill{background:var(--pale);padding:5px 9px;border-radius:20px;font-size:10px;font-weight:600;letter-spacing:0;color:var(--green)}.price-pair{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:30px 0;border-bottom:1px solid var(--line)}.price-pair>div>small{display:block;font-size:13px;color:var(--muted)}.price-pair strong{font-size:39px;letter-spacing:-1px}.price-pair strong small{font-size:13px;font-weight:400;margin-left:3px}.price-pair>div:last-child{color:var(--green)}.example-total{display:flex;align-items:center;justify-content:space-between;margin-top:22px}.example-total span{display:block;font-size:13px;color:var(--muted)}.example-total strong{font-size:35px;letter-spacing:-1px}.example-total strong small{font-size:13px;letter-spacing:0;font-weight:400}.example-total svg{width:55px;height:55px}.example>p{font-size:11px;color:var(--muted);margin:15px 0 0}.editorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;margin-top:40px}.editorial-grid>a,.editorial-grid>div{border-top:2px solid var(--green);padding-top:22px}.editorial-grid h3{font-size:26px;letter-spacing:-.04em;margin:22px 0 18px}.editorial-grid p{font-size:15px;color:var(--muted)}.number{font-size:10px;letter-spacing:1.5px;font-weight:700;color:var(--green)}.dark{background:#103f35;color:white;padding:65px 0}.dark-inner{display:grid;grid-template-columns:1.3fr 1fr;gap:90px;align-items:center}.dark .eyebrow{color:var(--lime)}.dark h2{margin-bottom:20px}.dark p{color:#c6d7ca;max-width:450px}.dark .fineprint{max-width:340px}.light{background:var(--lime);border-color:var(--lime);color:var(--ink)}.light:hover{background:#c7e689;color:var(--ink)}footer{background:#fff;padding:48px 0 20px}.footer-top{display:flex;justify-content:space-between;gap:70px}.footer-top p{font-size:13px;color:var(--muted);margin:20px 0 0}.footer-top nav{display:grid;grid-template-columns:repeat(3,auto);gap:10px 35px;align-content:start;font-size:13px}.footer-bottom{display:flex;justify-content:space-between;gap:30px;border-top:1px solid 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[role=status]{font-size:13px;color:var(--muted)}.honeypot{position:absolute;left:-10000px}[hidden]{display:none!important}
@media(min-width:1500px){.hero{min-height:680px}.hero-photo{width:70%;background-position:center 55%}.hero-content{padding-top:80px;padding-bottom:90px}}
@media(max-width:1150px){header nav{gap:15px}header nav a{font-size:12px}.brand{font-size:25px}.header-inner{width:calc(100% - 48px)}.wrap{width:calc(100% - 64px)}.hero h1{font-size:56px}.hero-photo{width:68%;opacity:.95}.hero .lead{max-width:420px}.hero .actions{max-width:380px;gap:16px}.section-heading{gap:35px}.split{gap:40px}.example{padding:24px}.price-pair strong{font-size:30px}.state-card{padding:20px}.footer-top nav{gap:10px 22px}.calculator{grid-template-columns:1.5fr 1fr}.calculator form{padding:25px}.calc-heading{display:block}.calc-heading .pill{display:inline-block;margin-top:12px}}
@media(max-width:850px){header nav{display:none;position:absolute;left:0;right:0;top:80px;flex-direction:column;align-items:stretch;background:white;padding:20px 30px;border-bottom:1px solid var(--line);gap:0}header nav.open{display:flex}header nav a{font-size:15px;padding:10px}.menu{display:flex;gap:10px;background:none;border:0;padding:10px;font-size:13px;color:var(--ink)}main{padding-top:80px}.header-inner{height:80px}.hero{min-height:580px}.hero-photo{width:76%;opacity:.58}.hero h1{font-size:51px}.hero-content{padding-top:45px;padding-bottom:45px}.hero .lead{max-width:420px}.hero-points{gap:14px;font-size:10px}.principle{display:block}.principle .small-label{display:block;margin-bottom:10px}.principle p{margin-bottom:10px}.section{padding:60px 0}h2{font-size:36px}.section-heading{display:block}.section-heading>p{max-width:600px}.state-grid{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr;gap:35px}.example{max-width:650px}.editorial-grid{gap:22px}.editorial-grid h3{font-size:23px}.dark-inner{gap:35px}.footer-top{gap:30px}.footer-top nav{grid-template-columns:repeat(2,auto)}.footer-bottom{font-size:9px}.page-intro h1{font-size:47px}.calculator{grid-template-columns:1fr}.calc-result{padding:30px}.calc-result dl{margin-top:20px}.calc-heading{display:flex}.calc-heading .pill{margin:0}.about-panel{padding:30px}}
@media(max-width:550px){.wrap{width:calc(100% - 40px)}.header-inner{width:calc(100% - 32px)}.brand{font-size:25px}.brandmark{width:34px;height:38px}.brand small{font-size:8px;letter-spacing:2.5px}.hero{display:block;min-height:0;padding-bottom:215px}.hero-content{padding-top:40px;padding-bottom:15px}.hero .eyebrow{font-size:9px;letter-spacing:1.3px;margin-bottom:20px}.hero h1{font-size:43px;line-height:1.08;letter-spacing:-2px;margin-bottom:18px}.hero .lead{font-size:16px;line-height:1.6;max-width:350px}.hero .actions{gap:18px;margin-top:22px;max-width:100%}.hero .button{padding:14px 18px}.hero-points{gap:12px;margin-top:23px;font-size:10px;flex-wrap:wrap}.hero-photo{width:100%;height:250px;top:auto;bottom:0;background-position:center 69%;opacity:1;mask-image:linear-gradient(to bottom,transparent,#000 30%);-webkit-mask-image:linear-gradient(to bottom,transparent,#000 30%)}.hero:after{height:35px}.principle{padding:22px 0}.principle p{font-size:16px}.section{padding:45px 0}.eyebrow{font-size:10px;margin-bottom:17px}h2{font-size:32px}.section-heading>p{font-size:14px}.state-card,.compact .state-card{padding:20px 15px}.state-card h3{font-size:18px}.state-card p{font-size:12px}.state-card strong{font-size:11px}.fineprint{font-size:11px}.split .lead{font-size:16px}.example-top{font-size:8px}.example{padding:23px}.price-pair strong{font-size:32px}.example-total strong{font-size:31px}.editorial-grid{grid-template-columns:1fr;gap:28px;margin-top:25px}.editorial-grid h3{margin:15px 0 12px;font-size:25px}.editorial-grid p{font-size:14px}.dark{padding:42px 0}.dark-inner{grid-template-columns:1fr;gap:20px}.dark h2{font-size:34px}.footer-top{display:block}.footer-top nav{margin-top:30px;grid-template-columns:repeat(2,1fr);gap:12px;font-size:12px}.footer-bottom{display:block;font-size:10px}.footer-bottom span{display:block;margin:8px 0}.page-intro{padding-top:42px;padding-bottom:25px}.page-intro h1{font-size:40px}.page-intro .lead{font-size:17px}.bottom{padding-bottom:50px}.filter{display:block}.filter label{display:block;margin-bottom:8px}.filter select{width:100%}.notice{padding:20px}.calculator form{padding:22px 18px}.calc-heading{display:block}.calc-heading h2{font-size:24px}.calc-heading .pill{margin-top:12px}.fields{gap:18px 12px}.fields label{font-size:11px}.input-wrap input{padding:10px;width:100%}.input-wrap>span{font-size:9px;padding-right:7px}.calc-result{padding:28px 22px}.big-result{font-size:56px}.sources article{align-items:flex-start;flex-direction:column;gap:15px}.sources h3{font-size:22px}.reading h2{font-size:28px}.contact-form .check{line-height:1.5}.about-panel{padding:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Revised logo: two words, small Australian suffix, orange pump icon. */
.brand-logo{display:block;width:250px;height:auto}
@media(max-width:1150px){.brand-logo{width:225px}}
@media(max-width:550px){.brand-logo{width:220px}}