:root{--ink:#142b36;--muted:#586871;--cream:#f5f3ec;--paper:#fffef9;--line:#d9ded9;--yellow:#f9bc45;--blue:#234653}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font:16px/1.65 'DM Sans',Arial,sans-serif}a{color:inherit;text-underline-offset:4px}a:hover{color:#926100}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:5px}img{max-width:100%}.wrap{width:min(1200px,calc(100% - 48px));margin:auto}.topline{background:var(--ink);color:#fff;font-size:12px;letter-spacing:.09em;padding:8px 0;text-transform:uppercase}.topline .wrap{display:flex;justify-content:space-between;gap:16px}.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}.brand{text-decoration:none;line-height:1;font-family:'Barlow Condensed',Impact,sans-serif;font-weight:800;font-size:28px;letter-spacing:.015em;display:flex;align-items:center;gap:10px}.brand-mark{background:var(--yellow);padding:10px 12px;clip-path:polygon(15% 0,100% 0,85% 100%,0 100%);font-size:23px}.brand small{display:block;font:9px/1.8 'DM Sans',sans-serif;letter-spacing:.2em}.navlinks{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:600}.navlinks a{text-decoration:none}.navlinks .outline{border:1px solid var(--ink);padding:8px 16px}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:700;display:block;margin-bottom:18px;color:#56736c}.hero{display:grid;grid-template-columns:1.08fr 1fr;gap:46px;padding:68px 0 52px;align-items:center}h1,h2,h3{font-family:'Barlow Condensed',Impact,sans-serif;line-height:1.04;margin:0 0 22px;font-weight:700}h1{font-size:clamp(46px,6.2vw,82px);letter-spacing:-.015em}h2{font-size:clamp(34px,4vw,52px)}h3{font-size:29px}.hero p,.lead{font-size:18px;color:var(--muted);max-width:630px}.hero h1 em{font-style:normal;color:#8a5b12}.buttons{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 20px}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;padding:13px 22px;background:var(--yellow);color:var(--ink);text-decoration:none;font-weight:700;border:1px solid transparent;cursor:pointer;border-radius:2px}.button:hover{background:#e9a82b;color:var(--ink)}.button.secondary{background:transparent;border-color:#bbc6c7}.button.dark{background:var(--ink);color:white}.fine{font-size:12px;color:var(--muted)}.hero-art{position:relative;min-height:490px;background:var(--ink);overflow:hidden;color:white;display:flex;flex-direction:column;justify-content:space-between;padding:28px}.hero-art:before{content:'';position:absolute;width:520px;height:520px;right:-170px;top:70px;border:1px solid #5c737b;border-radius:50%;box-shadow:0 0 0 58px #233e49,0 0 0 59px #435b64,0 0 0 120px #1b3541}.art-top{z-index:1;display:flex;justify-content:space-between;font-size:11px;letter-spacing:.15em}.hero-bottles{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:center;height:320px;gap:0}.hero-bottles img{height:250px;width:34%;object-fit:contain;filter:drop-shadow(0 15px 15px #0005)}.hero-bottles img:nth-child(2){height:310px;margin:0 -12px;z-index:2}.art-bottom{z-index:1;border-top:1px solid #71838a;padding-top:14px;display:flex;justify-content:space-between;font-size:12px}.art-bottom strong{color:var(--yellow)}.proofstrip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:21px 0;gap:20px;font-size:13px}.proofstrip b{display:block;font-size:14px}.section{padding:68px 0}.sectionhead{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}.sectionhead p{max-width:460px;color:var(--muted);margin:0 0 20px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.need{border-top:3px solid var(--ink);padding:25px;background:var(--paper)}.need .num{font-size:12px;color:#6c7777;display:block;margin-bottom:22px}.need p{color:var(--muted)}.textlink{font-weight:700;font-size:14px}.card{background:var(--paper);border:1px solid var(--line);display:flex;flex-direction:column}.card-visual{display:flex;align-items:center;justify-content:center;min-height:230px;padding:20px;background:#ebece6;position:relative}.card-visual img{height:210px;width:80%;object-fit:contain}.tag{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;background:white;border:1px solid var(--line);padding:4px 8px;display:inline-block}.card-visual .tag{position:absolute;top:14px;left:14px}.card-content{padding:24px;display:flex;flex-direction:column;flex:1}.card-content p{font-size:14px;color:var(--muted);margin-top:0}.card-content h3{font-size:30px}.card-content .textlink{margin-top:auto}.band{background:var(--ink);color:white}.band .eyebrow{color:var(--yellow)}.band p{color:#c1cdd1}.band .grid2{align-items:center;gap:70px}.sticker{border:2px solid var(--cream);padding:35px;text-align:center;transform:rotate(-3deg);max-width:390px;margin:auto;box-shadow:7px 7px 0 var(--yellow)}.sticker strong{display:block;font:700 70px/.95 'Barlow Condensed',Impact,sans-serif;color:var(--yellow)}.sticker span{font-size:14px;letter-spacing:.2em}.citylist{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line)}.citylist a{padding:18px 14px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);text-decoration:none;font-size:14px}.citylist a:hover{background:var(--yellow)}.pagehead{padding:52px 0 30px;max-width:850px}.pagehead h1{font-size:clamp(42px,5.2vw,66px)}.breadcrumb{font-size:12px;color:var(--muted);margin-bottom:28px}.productlayout{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;align-items:start;padding:30px 0 60px}.productimage{background:#e7eae4;padding:35px;position:sticky;top:20px;text-align:center}.productimage img{height:390px;width:100%;object-fit:contain}.productinfo h1{font-size:60px}.productinfo li{margin-bottom:7px}.callout{border-left:4px solid var(--yellow);padding:18px 23px;background:#ede9dc;margin:25px 0}.callout strong{display:block}.article{max-width:800px;margin:0 auto}.article h2{font-size:34px;margin:38px 0 14px}.article h3{font-size:26px;margin:25px 0 12px}.article p,.article li{color:#3e515b}.article li{margin-bottom:8px}.article .lead{font-size:20px}.article figure{margin:0}.doclinks{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.doclinks a{border:1px solid var(--line);background:var(--paper);padding:12px 16px;font-size:14px}.related{display:grid;grid-template-columns:1fr 1fr;gap:12px}.related a{padding:18px;background:var(--paper);border:1px solid var(--line);font-weight:600;text-decoration:none}details{border-bottom:1px solid var(--line);padding:18px 0}summary{font-weight:600;cursor:pointer}table{border-collapse:collapse;width:100%;background:var(--paper);font-size:14px}td,th{padding:16px;border-bottom:1px solid var(--line);text-align:left}th{background:var(--ink);color:white}.tablewrap{overflow-x:auto}form{background:var(--paper);border:1px solid var(--line);padding:30px}label{display:block;font-weight:600;font-size:14px;margin:14px 0 5px}input,select,textarea{width:100%;background:#fff;border:1px solid #9ba9aa;padding:12px;border-radius:2px}input[type=checkbox]{width:auto;margin-right:8px}.check{font-weight:400}.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.status{padding:15px;background:#e6efdf;margin-top:18px}.footer{background:#e8e9e1;margin-top:60px;padding:40px 0 25px}.footergrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:45px}.footer a{font-size:14px}.footer ul{list-style:none;padding:0;margin:8px 0}.footer li{margin:8px 0}.disclosure{border-top:1px solid #c4ceca;margin-top:25px;padding-top:20px;font-size:12px;color:#4b6068}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:white;z-index:10;padding:12px}.guidebadge{font-size:12px;color:#557168;border-bottom:1px solid var(--line);padding-bottom:16px}.empty{min-height:240px}.mobile-menu{display:none}
@media(max-width:850px){.hero{grid-template-columns:1fr;gap:25px;padding-top:38px}.hero-art{min-height:400px}.hero-bottles{height:270px}.hero-bottles img{height:220px}.hero-bottles img:nth-child(2){height:260px}.nav{align-items:flex-start;flex-direction:column;gap:18px}.navlinks{width:100%;justify-content:space-between;gap:12px;flex-wrap:wrap}.grid3{grid-template-columns:1fr 1fr}.grid2,.productlayout{grid-template-columns:1fr}.productimage{position:static}.productimage img{height:280px}.citylist{grid-template-columns:repeat(2,1fr)}.sectionhead{display:block}.footergrid{grid-template-columns:1fr 1fr}.footergrid>div:first-child{grid-column:1/-1}.proofstrip{font-size:12px}.topline .wrap span:last-child{display:none}.section{padding:45px 0}.band .grid2{gap:40px}.productinfo h1{font-size:48px}}
@media(max-width:520px){.wrap{width:calc(100% - 32px)}.grid3,.related,.formgrid{grid-template-columns:1fr}.brand{font-size:25px}.navlinks{font-size:12px}.navlinks .outline{padding:6px 9px}.proofstrip{grid-template-columns:1fr;padding:18px 0;gap:13px}.proofstrip b{display:inline;margin-right:8px}.hero h1{font-size:58px}.hero-art{min-height:350px;padding:20px}.hero-bottles{height:230px}.hero-bottles img{height:180px}.hero-bottles img:nth-child(2){height:220px}.card-visual{min-height:210px}.footergrid{gap:20px}form{padding:20px}.productlayout{gap:25px}}
.hero-art{background:#dce4dc;color:var(--ink)}.hero-art:before{border-color:#b0c1b8;box-shadow:0 0 0 58px #d4dfd5,0 0 0 59px #b7c9bd,0 0 0 120px #d8e2d9}.hero-bottles img,.card-visual img,.productimage img{mix-blend-mode:multiply}.art-bottom{border-color:#91a59a}.art-bottom strong{color:#775010}[hidden]{display:none!important}
.hero-bottles img{object-fit:cover}.card-visual img{object-fit:contain}

.catalog-band{background:#e7e9df}.catalog-band-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.catalog-band h2{max-width:700px}.catalog-band p{max-width:650px;color:var(--muted)}.catalog-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:44px;align-items:start}.catalog-story h2{font-size:36px;margin:8px 0 16px}.catalog-story p{color:#3e515b}.catalog-cta{background:#e8ece5;border:1px solid #cbd4cf;padding:24px;margin:30px 0}.catalog-cta h2{font-size:32px;margin-bottom:10px}.catalog-cta .eyebrow{margin-bottom:10px}.catalog-cta p{color:#3e515b}.dealer-card{background:var(--ink);color:#fff;padding:30px;position:sticky;top:20px}.dealer-card .eyebrow{color:var(--yellow)}.dealer-card strong{display:block;color:var(--yellow);font:700 66px/.95 'Barlow Condensed',Impact,sans-serif;margin:24px 0}.dealer-card p{color:#d0dadd}.dealer-card a{color:#fff}
@media(max-width:700px){.catalog-band-inner{display:block}.catalog-layout{grid-template-columns:1fr}.dealer-card{position:static}.catalog-band .buttons{margin-bottom:0}}

.breadcrumb{margin-top:24px;margin-bottom:0}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0}.breadcrumb li+li:before{content:"/";padding-right:8px}.contents{background:#e8ece5;padding:20px 24px;margin-bottom:28px}.contents ul{columns:2;padding-left:18px}.contents li{font-size:14px;break-inside:avoid;margin-bottom:6px}.productinfo h2{font-size:30px;margin-top:28px}.hero h1{font-size:clamp(45px,5.1vw,68px)}@media(max-width:600px){.contents ul{columns:1}}

/* Approved diesel droplet wordmark */
.brand-logo{display:block;width:300px;height:auto;max-width:100%;border-radius:3px}.footer-logo{width:240px}.nav .brand{flex-shrink:0}@media(max-width:520px){.brand-logo{width:250px}.footer-logo{width:220px}}

.winter-evidence{margin:2.5rem 0;padding:1.75rem;border:1px solid #d5e1e3;border-left:4px solid #d88d32;border-radius:8px;background:#f5f8f8}.winter-evidence h2:first-child{margin-top:0}.winter-evidence li{margin:.65rem 0}.winter-sources{font-size:.9rem;border-top:1px solid #d5e1e3;padding-top:1rem;margin-top:1.25rem}.winter-sources summary{cursor:pointer;font-weight:700}.winter-sources a{overflow-wrap:anywhere}@media(max-width:600px){.winter-evidence{padding:1.15rem}}

/* Keep the expanded main navigation usable at tablet widths. */
@media(max-width:1150px){.nav{align-items:flex-start;flex-direction:column;gap:18px}.navlinks{width:100%;justify-content:space-between;gap:12px;flex-wrap:wrap}}

/* Authorship and the keyboard-friendly treatment selector. */
.byline{font-size:.9rem;color:#52636c;margin:12px 0 20px}.byline a{font-weight:700}.author-box{border-top:1px solid #d8e0e3;padding-top:28px;padding-bottom:36px}.author-box p{max-width:760px}.photo-placeholder{padding:24px;border:2px dashed #a9b6bb;background:#f2f5f4;margin-top:28px}.quiz-choice{display:flex;align-items:center;gap:12px;border:1px solid #a9b6bb;padding:16px;margin:12px 0;border-radius:6px;cursor:pointer}.quiz-choice input{width:20px;height:20px;margin:0;flex:none}.treatment-quiz fieldset{border:0;padding:0;margin:0 0 20px;min-width:0}.treatment-quiz legend{font-size:1.4rem;font-weight:700;line-height:1.4;margin-bottom:12px}.quiz-card{margin-bottom:24px}.quiz-card .buttons{gap:12px}.quiz-home-link{padding:18px 0}.treatment-quiz [hidden]{display:none!important}.navlinks{flex-wrap:wrap}.personal-note{max-width:760px}