/* ============================================
   MyOilType.com — Retro Cars Design System
   Desert Red + Chocolate + Teal + Gold
   Fonts: Baloo 2 (headings) + Quicksand (body)
   ============================================ */
:root {
  --red: #D94F30;
  --red-dark: #B83A22;
  --red-light: #FBDED7;
  --red-glow: #FFF0EC;
  --chocolate: #2B1810;
  --chocolate-mid: #4A3228;
  --chocolate-light: #6B5D50;
  --teal: #1E6B5C;
  --teal-dark: #175A4D;
  --teal-light: #D4F0EA;
  --teal-glow: #EDFAF6;
  --gold: #FFD966;
  --gold-dark: #E8A838;
  --gold-deep: #C4880E;
  --gold-light: #FFF5D6;
  --cream: #FFF8EE;
  --cream-mid: #F5EBD9;
  --cream-dark: #EDD9BF;
  --sand: #FFF2E0;
  --charcoal: #1A1A1A;
  --charcoal-mid: #3D3D3D;
  --charcoal-light: #6B6B6B;
  --charcoal-muted: #707070;
  --white: #FFFFFF;
  --success: #2A8C7A;
  --success-light: #D4F0EA;
  --info: #2B7BB9;
  --info-light: #E8F1F8;
  --warning: #E8A838;
  --warning-light: #FFF5D6;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 50px;
  --shadow-sm: 0 2px 6px rgba(43,24,16,0.06);
  --shadow-md: 0 4px 16px rgba(43,24,16,0.10);
  --shadow-lg: 0 8px 32px rgba(43,24,16,0.12);
  --shadow-glow: 0 4px 24px rgba(217,79,48,0.15);
  --max-width: 1200px;
  --content-width: 800px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{font-family:'Quicksand',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--chocolate-mid);background-color:var(--cream);line-height:1.7;font-weight:500}
h1,h2,h3,h4,h5,h6{font-family:'Baloo 2',cursive,sans-serif;font-weight:800;line-height:1.15;color:var(--chocolate)}
h1{font-size:clamp(2.2rem,4.5vw,3.2rem);margin-bottom:.75rem}
h2{font-size:clamp(1.6rem,3vw,2.3rem);margin-bottom:.6rem}
h3{font-size:clamp(1.25rem,2.5vw,1.6rem);margin-bottom:.5rem}
h4{font-size:1.125rem;font-family:'Baloo 2',sans-serif;font-weight:700;color:var(--chocolate-mid)}
p{margin-bottom:1rem;color:var(--chocolate-light)}
a{color:var(--teal);text-decoration:underline;text-decoration-color:rgba(42,140,122,0.3);text-underline-offset:3px;transition:color .2s,text-decoration-color .2s}
a:hover{color:var(--red);text-decoration-color:var(--red)}
strong{font-weight:700;color:var(--chocolate)}
.skip-link{position:absolute;top:-100%;left:0;background:var(--teal);color:var(--white);padding:.75rem 1.5rem;z-index:1000;font-weight:700;text-decoration:none;border-radius:0 0 var(--radius-sm) 0}
.skip-link:focus{top:0}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
:focus:not(:focus-visible){outline:none}

/* Nav */
.site-nav{background:var(--chocolate);padding:0 1.5rem;position:sticky;top:0;z-index:100;box-shadow:0 3px 12px rgba(43,24,16,0.25)}
.site-nav .nav-inner{display:flex;align-items:center;justify-content:space-between;max-width:var(--max-width);margin:0 auto;height:66px}
.logo{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--cream);font-family:'Baloo 2',cursive,sans-serif;font-weight:800;font-size:1.5rem;letter-spacing:-.01em}
.logo .logo-icon{width:38px;height:38px}
.logo .logo-accent{color:var(--red)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2.5px;background:var(--cream);border-radius:3px;transition:transform .3s,opacity .3s}
.nav-links{display:flex;align-items:center;gap:.25rem;list-style:none}
.nav-links a{color:rgba(255,245,230,0.8);text-decoration:none;padding:.5rem .85rem;border-radius:var(--radius-sm);font-size:.9rem;font-weight:600;transition:color .2s,background .2s}
.nav-links a:hover{color:var(--cream);background:rgba(255,245,230,0.1)}
.nav-links .nav-cta{background:var(--red);color:var(--white);font-weight:700;border-radius:var(--radius-pill);padding:.5rem 1.25rem;font-family:'Baloo 2',sans-serif}
.nav-links .nav-cta:hover{background:#B83A22}
@media(max-width:768px){
  .nav-toggle{display:flex}
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:var(--chocolate);flex-direction:column;padding:1rem;border-top:1px solid rgba(255,245,230,0.08);box-shadow:0 10px 24px rgba(43,24,16,0.3)}
  .nav-links.open{display:flex}
  .nav-links a{padding:.75rem 1rem;width:100%;font-size:1rem}
  .nav-links .nav-cta{text-align:center;margin-top:.5rem}
}

/* Layout */
.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}
.content-narrow{max-width:var(--content-width);margin:0 auto}
.section{padding:3rem 0}
.section-alt{background:var(--sand)}

/* Hero */
.hero{background:linear-gradient(160deg,var(--red) 0%,var(--red-dark) 50%,#A03520 100%);color:var(--white);padding:4rem 1.5rem;text-align:center;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;background:radial-gradient(circle,rgba(255,217,102,0.12) 0%,transparent 70%);border-radius:50%}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(255,255,255,0.05) 0%,transparent 70%);border-radius:50%}
.hero h1{color:var(--white);font-size:clamp(2.4rem,5.5vw,3.8rem);margin-bottom:.75rem;position:relative}
.hero h1 .accent{color:var(--gold)}
.hero .tagline{font-size:clamp(1.05rem,2vw,1.25rem);color:rgba(255,255,255,0.8);max-width:550px;margin:0 auto 2.5rem;line-height:1.6;font-weight:500}

/* Ollie */
.ollie-container{display:inline-block;margin-bottom:1.5rem}
.ollie-says{display:flex;align-items:flex-start;gap:.75rem;background:var(--gold-light);border:2px solid var(--gold);border-left:5px solid var(--gold-dark);border-radius:var(--radius-md);padding:1rem 1.25rem;margin:1.5rem 0;font-size:.95rem;color:var(--chocolate-mid)}
.ollie-says .ollie-icon{flex-shrink:0;width:40px;height:40px}
.ollie-says strong{color:var(--gold-deep);font-weight:700}

/* Lookup Tool */
.lookup-tool{background:var(--white);border-radius:var(--radius-lg);padding:2rem;max-width:600px;margin:0 auto;box-shadow:var(--shadow-lg),var(--shadow-glow);position:relative;border:2px solid rgba(255,255,255,0.2)}
.lookup-tool h2{font-size:1.3rem;margin-bottom:1.25rem;text-align:center;color:var(--chocolate)}
.lookup-fields{display:flex;flex-direction:column;gap:1rem}
.field-group{display:flex;flex-direction:column;gap:.35rem}
.field-group label{font-weight:700;font-size:.8rem;color:var(--chocolate-light);text-transform:uppercase;letter-spacing:.06em;font-family:'Baloo 2',sans-serif}
.field-group select,.field-group input{padding:.75rem 1rem;border:2px solid var(--cream-dark);border-radius:var(--radius-sm);font-family:'Quicksand',sans-serif;font-size:1rem;font-weight:500;color:var(--chocolate);background:var(--cream);transition:border-color .2s,box-shadow .2s;appearance:none;-webkit-appearance:none}
.field-group select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B5D50' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center;padding-right:2.5rem}
.field-group select:focus,.field-group input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(42,140,122,0.15);outline:none}
.field-group select:disabled{background-color:var(--cream-mid);color:var(--charcoal-muted);cursor:not-allowed}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem 1.75rem;border:none;border-radius:var(--radius-pill);font-family:'Baloo 2',cursive,sans-serif;font-size:1.05rem;font-weight:700;cursor:pointer;transition:background .2s,transform .1s,box-shadow .2s;text-decoration:none}
.btn:active{transform:scale(0.97)}
.btn-primary{background:#2A8C7A;color:var(--white);box-shadow:0 3px 10px rgba(42,140,122,0.3)}
.btn-primary:hover{background:#1E6B5C;box-shadow:0 5px 16px rgba(42,140,122,0.35);color:var(--white)}
.btn-primary:disabled{background:var(--charcoal-muted);box-shadow:none;cursor:not-allowed}
.btn-secondary{background:var(--white);color:var(--chocolate);border:2px solid var(--cream-dark)}
.btn-secondary:hover{border-color:var(--teal);background:var(--teal-glow);color:var(--chocolate)}
.btn-full{width:100%}

/* Answer Box */
.answer-box{background:linear-gradient(135deg,var(--chocolate) 0%,#1A0F0A 100%);border-radius:var(--radius-lg);padding:2rem;color:var(--cream);margin:2rem 0;position:relative;overflow:hidden}
.answer-box::after{content:'';position:absolute;bottom:-30px;right:-30px;width:150px;height:150px;background:radial-gradient(circle,rgba(255,217,102,0.1) 0%,transparent 70%);border-radius:50%}
.answer-box .answer-label{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,245,230,0.5);margin-bottom:.25rem;font-weight:600}
.answer-box .answer-primary{font-family:'Baloo 2',cursive,sans-serif;font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;color:var(--gold);margin-bottom:1rem;line-height:1.2}
.answer-box .answer-details{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem}
.answer-detail{background:rgba(255,245,230,0.06);border-radius:var(--radius-sm);padding:.75rem 1rem}
.answer-detail .detail-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:rgba(255,245,230,0.45);margin-bottom:.15rem;font-weight:600}
.answer-detail .detail-value{font-size:1.15rem;font-weight:700;color:var(--cream);font-family:'Baloo 2',sans-serif}

/* Fluid Specs */
.fluid-specs{background:var(--white);border-radius:var(--radius-lg);border:2px solid var(--cream-dark);overflow:hidden;margin:2rem 0}
.fluid-specs h3{padding:1.25rem 1.5rem;margin:0;background:var(--sand);border-bottom:2px solid var(--cream-dark);font-size:1.15rem}
.spec-row{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid var(--cream-mid)}
.spec-row:last-child{border-bottom:none}
.spec-row:hover{background:var(--cream)}
.spec-label{font-weight:600;color:var(--chocolate-light);display:flex;align-items:center;gap:.5rem}
.spec-label .spec-icon{width:20px;height:20px;color:var(--red)}
.spec-value{font-weight:700;color:var(--chocolate);text-align:right}

/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}
.card{background:var(--white);border:2px solid var(--cream-dark);border-radius:var(--radius-lg);padding:1.5rem;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.card h3{font-size:1.2rem;margin-bottom:.5rem}
.card p{font-size:.9rem;color:var(--chocolate-light)}
.card a.card-link{display:block;text-decoration:none;color:inherit}
.card a.card-link:hover h3{color:var(--red)}
.tool-card{border-top:4px solid var(--teal)}
.tool-card .tool-icon{width:48px;height:48px;background:var(--teal-glow);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-bottom:1rem;color:var(--teal-dark)}

/* Trust Bar */
.trust-bar{display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:center;padding:1.5rem 0}
.trust-item{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--chocolate-light);font-weight:600}
.trust-item svg{width:18px;height:18px;color:var(--teal)}
.hero .trust-bar{margin-top:2rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,0.15)}
.hero .trust-item{color:rgba(255,255,255,0.65)}
.hero .trust-item svg{color:var(--gold)}

/* FAQ */
.faq-section{padding:2rem 0}
.faq-section h2{margin-bottom:1.5rem}
.faq-item{border:2px solid var(--cream-dark);border-radius:var(--radius-md);margin-bottom:.75rem;overflow:hidden;background:var(--white)}
.faq-question{display:flex;align-items:center;justify-content:space-between;width:100%;padding:1rem 1.25rem;background:none;border:none;cursor:pointer;font-family:'Quicksand',sans-serif;font-size:1rem;font-weight:700;color:var(--chocolate);text-align:left;transition:background .2s}
.faq-question:hover{background:var(--cream)}
.faq-question::after{content:'+';font-size:1.5rem;font-weight:700;color:var(--red);flex-shrink:0;font-family:'Baloo 2',sans-serif}
.faq-question[aria-expanded="true"]::after{content:'\2212'}
.faq-answer{display:none;padding:0 1.25rem 1rem;color:var(--chocolate-light);line-height:1.7}
.faq-answer.open{display:block}

/* Sources */
.sources-section{background:var(--sand);border-radius:var(--radius-md);padding:1.25rem 1.5rem;margin:2rem 0;border:1px solid var(--cream-dark)}
.sources-section h4{font-size:.9rem;text-transform:uppercase;letter-spacing:.05em;color:var(--chocolate-light);margin-bottom:.75rem}
.sources-section ul{list-style:none;padding:0}
.sources-section li{font-size:.85rem;color:var(--chocolate-light);margin-bottom:.35rem;padding-left:1rem;position:relative}
.sources-section li::before{content:'\2192';position:absolute;left:0;color:var(--red)}

/* Related Tools */
.related-tools{padding:2rem 0}
.related-tools h3{margin-bottom:1rem}

/* Breadcrumbs */
.breadcrumb{padding:1rem 0 .5rem;font-size:.85rem}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:.25rem;list-style:none;padding:0}
.breadcrumb li::after{content:'\203A';margin-left:.5rem;color:var(--charcoal-muted)}
.breadcrumb li:last-child::after{display:none}
.breadcrumb a{color:var(--chocolate-light);text-decoration:none;font-weight:600}
.breadcrumb a:hover{color:var(--red)}
.breadcrumb [aria-current="page"]{color:var(--chocolate);font-weight:700}

/* Year Nav */
.year-nav{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.5rem 0}
.year-nav a{padding:.4rem .85rem;border:2px solid var(--cream-dark);border-radius:var(--radius-pill);font-size:.88rem;font-weight:600;text-decoration:none;color:var(--chocolate-light);transition:all .2s}
.year-nav a:hover{border-color:var(--red);color:var(--red);background:var(--red-glow)}
.year-nav a.active{background:var(--red);color:var(--white);border-color:var(--red)}

/* Disclaimer */
.disclaimer-bar{background:var(--teal-glow);border:1px solid rgba(42,140,122,0.2);border-radius:var(--radius-sm);padding:.75rem 1rem;font-size:.8rem;color:var(--chocolate-light)}

/* Footer */
.site-footer{background:var(--chocolate);color:rgba(255,245,230,0.6);padding:3rem 1.5rem 1.5rem;margin-top:3rem}
.footer-inner{max-width:var(--max-width);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
.footer-brand .logo{margin-bottom:.75rem;font-size:1.25rem}
.footer-brand p{font-size:.85rem;color:rgba(255,245,230,0.4);max-width:300px}
.footer-links h4{color:rgba(255,245,230,0.8);font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:.75rem;font-family:'Baloo 2',sans-serif}
.footer-links ul{list-style:none;padding:0}
.footer-links li{margin-bottom:.4rem}
.footer-links a{color:rgba(255,245,230,0.5);text-decoration:none;font-size:.88rem;transition:color .2s}
.footer-links a:hover{color:var(--gold)}
.footer-bottom{max-width:var(--max-width);margin:2rem auto 0;padding-top:1.5rem;border-top:1px solid rgba(255,245,230,0.08);text-align:center;font-size:.8rem;color:rgba(255,245,230,0.3)}
@media(max-width:768px){
  .footer-inner{grid-template-columns:1fr;gap:1.5rem;text-align:center}
  .footer-brand p{max-width:100%}
}

/* Bottom CTA */
.bottom-cta{background:linear-gradient(135deg,var(--chocolate) 0%,#1A0F0A 100%);color:var(--cream);text-align:center;padding:3rem 1.5rem;border-radius:var(--radius-lg);margin:2rem auto;max-width:var(--max-width)}
.bottom-cta h2{color:var(--cream);margin-bottom:.5rem}
.bottom-cta p{color:rgba(255,245,230,0.65);margin-bottom:1.5rem}

/* Content Pages */
.page-content{max-width:var(--content-width);margin:0 auto;padding:2rem 1.5rem}
.page-content h1{margin-bottom:1rem}
.page-content h2{margin-top:2rem;margin-bottom:.75rem;font-size:1.5rem}
.page-content h3{margin-top:1.5rem;margin-bottom:.5rem}
.page-content ul,.page-content ol{margin-bottom:1rem;padding-left:1.5rem;color:var(--chocolate-light)}
.page-content li{margin-bottom:.35rem}
.last-reviewed{font-size:.85rem;color:var(--charcoal-muted);margin-bottom:1.5rem;font-weight:600}

/* Hub Pages */
.hub-header{padding:2rem 0;text-align:center}
.model-table{width:100%;border-collapse:collapse;background:var(--white);border-radius:var(--radius-md);overflow:hidden;border:2px solid var(--cream-dark);margin:1.5rem 0}
.model-table th{background:var(--chocolate);color:var(--cream);padding:.75rem 1rem;text-align:left;font-family:'Baloo 2',sans-serif;font-size:.88rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.model-table td{padding:.75rem 1rem;border-bottom:1px solid var(--cream-mid);font-size:.9rem;color:var(--chocolate-light)}
.model-table tr:hover td{background:var(--cream)}
.model-table a{font-weight:600}

/* Product Cards */
.product-card{background:var(--white);border:2px solid var(--cream-dark);border-radius:var(--radius-md);padding:1.25rem;display:flex;gap:1rem;align-items:center;transition:box-shadow .2s}
.product-card:hover{box-shadow:var(--shadow-md)}
.product-info h4{margin-bottom:.25rem}
.product-price{font-size:1.3rem;font-weight:800;color:var(--teal);font-family:'Baloo 2',sans-serif}
.product-links{display:flex;gap:.5rem;margin-top:.5rem;flex-wrap:wrap}
.product-links a{font-size:.85rem;padding:.35rem .75rem;border-radius:var(--radius-pill);text-decoration:none;font-weight:700}
.product-links .amazon-link{background:#FF9900;color:var(--charcoal)}
.product-links .walmart-link{background:#0071CE;color:var(--white)}
.product-links .advance-link{background:var(--charcoal);color:var(--white)}

/* Homepage */
.how-it-works{text-align:center;padding:3rem 0}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;margin-top:2rem}
.step{text-align:center}
.step-number{width:52px;height:52px;background:var(--red);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Baloo 2',cursive,sans-serif;font-weight:800;font-size:1.3rem;margin:0 auto .75rem;box-shadow:0 3px 8px rgba(217,79,48,0.25)}
.step h3{font-size:1.05rem;margin-bottom:.35rem}
.step p{font-size:.9rem}
.make-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:.75rem;margin-top:1.5rem}
.make-pill{text-align:center;padding:.7rem .5rem;background:var(--white);border:2px solid var(--cream-dark);border-radius:var(--radius-md);text-decoration:none;color:var(--chocolate-light);font-weight:700;font-size:.9rem;transition:all .2s}
.make-pill:hover{border-color:var(--red);color:var(--red);background:var(--red-glow);transform:translateY(-2px);box-shadow:var(--shadow-sm)}

/* Utility */
.text-center{text-align:center}
.text-muted{color:var(--charcoal-muted)}
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}
.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}

@media(max-width:768px){
  .hero{padding:2.5rem 1rem}
  .lookup-tool{padding:1.25rem}
  .answer-box .answer-details{grid-template-columns:1fr 1fr}
  .spec-row{flex-direction:column;align-items:flex-start;gap:.25rem}
  .spec-value{text-align:left}
}

/* Quiz */
.quiz-dot{width:100%;height:6px;border-radius:3px;background:var(--cream-dark);transition:background .3s}
.quiz-dot.active{background:var(--red)}
.quiz-dot.done{background:var(--teal)}
.quiz-step{animation:fadeIn .3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.quiz-options{display:flex;flex-direction:column;gap:.6rem}
.quiz-option{display:block;width:100%;padding:.9rem 1.15rem;border:2px solid var(--cream-dark);border-radius:var(--radius-sm);background:var(--cream);font-family:'Quicksand',sans-serif;font-size:.95rem;font-weight:600;color:var(--chocolate);text-align:left;cursor:pointer;transition:border-color .2s,background .2s,transform .1s}
.quiz-option:hover{border-color:var(--teal);background:var(--teal-glow);transform:translateX(4px)}
.quiz-option:active{transform:scale(0.98)}