:root {
  --accent: #1f6b5b;
  --text: #1b1b1b;
  --muted: #5b6770;
  --border: #d9e1e5;
  --bg: #f7f9fa;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: Arial, Helvetica, sans-serif; color: var(--text); background: #fff; line-height: 1.6;
}
.wrap { width: min(1040px, calc(100% - 32px)); margin: 0 auto; }
.site-header { border-bottom: 1px solid var(--border); background: #fff; position: sticky; top: 0; }
.topbar { display:flex; align-items:center; justify-content:space-between; gap:20px; padding: 14px 0; }
.brand { font-weight: 700; color: var(--text); text-decoration:none; font-size: 22px; }
.nav { display:flex; flex-wrap:wrap; gap:14px; }
.nav a { color: var(--muted); text-decoration:none; font-size: 14px; }
.nav a:hover, .nav a.active { color: var(--accent); }
.content { padding: 32px 0 56px; }
h1 { font-size: 40px; line-height: 1.15; margin: 0 0 18px; }
h2 { font-size: 28px; line-height: 1.2; margin: 42px 0 14px; }
h3 { font-size: 22px; line-height: 1.25; margin: 28px 0 10px; }
p { margin: 0 0 16px; }
ul { margin: 0 0 18px 20px; padding: 0; }
li { margin: 0 0 10px; }
a { color: var(--accent); }
.table-wrap { overflow-x:auto; border:1px solid var(--border); border-radius: 10px; margin: 18px 0 22px; }
table { width:100%; border-collapse: collapse; font-size: 15px; }
th, td { border-bottom:1px solid var(--border); padding: 12px 14px; text-align:left; vertical-align: top; }
th { background: var(--bg); }
.site-footer { border-top: 1px solid var(--border); background: var(--bg); margin-top: 40px; }
.footer-intro { padding: 22px 0 0; }
.footer-grid { display:grid; grid-template-columns: repeat(4,1fr); gap:20px; padding: 20px 0 8px; }
.footer-grid h4 { margin:0 0 10px; font-size:16px; }
.footer-grid ul { list-style:none; margin:0; padding:0; }
.footer-grid li { margin: 0 0 8px; }
.footer-grid a { color: var(--muted); text-decoration:none; }
.footer-grid a:hover { color: var(--accent); }
.footer-bottom { padding: 12px 0 28px; color: var(--muted); font-size: 14px; }
@media (max-width: 860px) {
  h1 { font-size: 32px; }
  h2 { font-size: 24px; }
  h3 { font-size: 20px; }
  .topbar { flex-direction: column; align-items:flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}


.hero-panel{
  background: linear-gradient(180deg, #f5faf8 0%, #ffffff 100%);
  border:1px solid #d9e1e5;
  border-radius:18px;
  padding:28px;
  margin:0 0 28px;
}
.hero-panel p{font-size:18px; max-width:800px;}
.hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:18px;}
.btn{
  display:inline-block; padding:12px 16px; border-radius:10px; text-decoration:none; font-weight:700;
  border:1px solid #1f6b5b;
}
.btn-primary{background:#1f6b5b; color:#fff;}
.btn-secondary{background:#fff; color:#1f6b5b;}
.section-card-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin:16px 0 26px;
}
.card{
  border:1px solid #d9e1e5; border-radius:14px; padding:18px; background:#fff;
}
.card h3{margin-top:0; margin-bottom:8px; font-size:20px;}
.card p{margin-bottom:0; color:#5b6770;}
.card a{text-decoration:none;}
.disclosure{
  margin:18px 0 22px;
  padding:12px 14px;
  border:1px solid #d9e1e5;
  border-left:4px solid #1f6b5b;
  border-radius:10px;
  background:#fbfcfd;
  color:#5b6770;
  font-size:14px;
}
.related-guides{
  margin-top:30px;
  padding-top:14px;
  border-top:1px solid #d9e1e5;
}
.related-guides ul{display:grid; grid-template-columns:repeat(2,1fr); gap:8px 20px; margin-left:0; list-style:none;}
.related-guides li{margin:0;}
.content > h1 + p {font-size:18px; color:#2b3740;}
.content h2{border-top:1px solid #d9e1e5; padding-top:18px;}
.content h2:first-of-type{border-top:none; padding-top:0;}
.callout{
  background:#f7f9fa;
  border:1px solid #d9e1e5;
  border-radius:12px;
  padding:14px 16px;
  margin:18px 0;
}
.quick-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin:18px 0 26px;
}
.quick-grid .mini{border:1px solid #d9e1e5; border-radius:12px; padding:14px; background:#fff;}
.quick-grid .mini strong{display:block; margin-bottom:6px;}
.site-footer a{ text-decoration:none; }
.site-footer a:hover{ text-decoration:underline; }
.table-wrap table tr:hover td{ background:#fcfdfd; }
.footer-disclosure{color:#5b6770; font-size:14px; margin-top:8px;}
@media (max-width: 900px){
  .section-card-grid,.quick-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width: 640px){
  .hero-panel{padding:20px;}
  .hero-panel p{font-size:17px;}
  .section-card-grid,.quick-grid{grid-template-columns:1fr;}
  .related-guides ul{grid-template-columns:1fr;}
}


body{
  background: linear-gradient(180deg, #ffffff 0%, #fbfcfc 100%);
}
.site-header{
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.03);
}
.topbar{padding: 16px 0;}
.brand{letter-spacing: -0.02em;}
.content{
  max-width: 860px;
}
.content p, .content li{
  font-size: 17px;
}
.content ul{
  margin-left: 18px;
}
.hero-panel{
  box-shadow: 0 10px 26px rgba(31,107,91,0.06);
}
.card, .mini, .callout, .disclosure, .table-wrap{
  box-shadow: 0 4px 16px rgba(0,0,0,0.03);
}
.card:hover{
  transform: translateY(-1px);
  transition: transform 120ms ease;
}
.table-wrap{
  background:#fff;
}
.table-wrap table{
  background:#fff;
}
.breadcrumbs{
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 16px;
}
.breadcrumbs a{
  text-decoration:none;
}
.breadcrumbs span.sep{
  margin:0 6px;
  color:#93a0a8;
}
.content h1{
  letter-spacing:-0.03em;
}
.content h2{
  margin-top: 46px;
}
.content h3{
  color:#22323b;
}
.utility-legal{
  background:#fbfcfd;
  border:1px solid var(--border);
  border-radius:14px;
  padding:18px;
  margin: 18px 0 22px;
}
.site-footer{
  margin-top: 64px;
}
.footer-grid{
  border-top:1px solid rgba(0,0,0,0.03);
  padding-top:24px;
}
@media (max-width: 640px){
  .content p, .content li{font-size:16px;}
}


/* Final HTML QA + polish pass */
html { scroll-behavior: smooth; }
.wrap { width: min(1100px, calc(100% - 28px)); }
.content { max-width: 860px; padding-top: 28px; }
.nav { row-gap: 8px; }
.nav a { padding: 6px 2px; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a.active { border-bottom-color: var(--accent); text-decoration: none; }
.content p, .content li { max-width: 72ch; font-size: 17px; }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-wrap table { min-width: 720px; }
.jump-links {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  padding: 14px 16px;
  margin: 18px 0 26px;
}
.jump-links h2 {
  margin-top: 0 !important;
  margin-bottom: 12px !important;
  border-top: none !important;
  padding-top: 0 !important;
  font-size: 18px;
}
.jump-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 18px;
}
.jump-links li { margin: 0; }
.quick-verdict {
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  background: #fff;
  padding: 16px;
  margin: 18px 0 24px;
}
.quick-verdict p:last-child { margin-bottom: 0; }
.content h2[id], .content h3[id] { scroll-margin-top: 90px; }
.utility-legal {
  background:#fbfcfd;
  border:1px solid var(--border);
  border-radius:14px;
  padding:18px;
  margin:18px 0 22px;
}
@media (max-width: 860px) {
  .jump-links ul { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .wrap { width: min(100% - 20px, 1100px); }
  .content p, .content li { font-size: 16px; }
  .nav { gap: 10px 12px; }
  .nav a { font-size: 13px; }
  .hero-actions .btn { width: 100%; text-align: center; }
}


.brand-lockup{
  display:flex;
  align-items:center;
  gap:10px;
}
.brand-lockup img{
  width:42px;
  height:42px;
  object-fit:contain;
  border-radius:8px;
  display:block;
}
.brand-lockup span{
  font-weight:700;
  color:inherit;
  line-height:1;
}
@media (max-width: 640px){
  .brand-lockup img{
    width:36px;
    height:36px;
  }
}


.article-figure{
  margin: 20px 0 28px;
}
.article-figure img{
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  border: 1px solid #d9e1e5;
}
.article-figure figcaption{
  margin-top: 8px;
  font-size: 13px;
  color: #5b6770;
}
.figure-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 20px 0 28px;
}
@media (max-width: 700px){
  .figure-grid{
    grid-template-columns: 1fr;
  }
}


.faq-block{
  margin: 34px 0 28px;
  padding-top: 10px;
  border-top: 1px solid #d9e1e5;
}
.faq-item{
  border: 1px solid #d9e1e5;
  border-radius: 12px;
  padding: 16px;
  background: #fff;
  margin: 0 0 14px;
}
.faq-item h3{
  margin: 0 0 8px;
  font-size: 19px;
}
.faq-item p:last-child{
  margin-bottom: 0;
}


.affiliate-note{
  margin: 14px 0 20px;
  padding: 12px 14px;
  border: 1px solid #d9e1e5;
  border-radius: 10px;
  background: #fffdf8;
  color: #5b6770;
  font-size: 14px;
}
.affiliate-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin: 10px 0 14px;
}
.affiliate-btn{
  display:inline-block;
  padding:10px 14px;
  border-radius:10px;
  text-decoration:none;
  font-weight:700;
  background:#1f6b5b;
  color:#fff;
  border:1px solid #1f6b5b;
}
.affiliate-btn.secondary{
  background:#fff;
  color:#1f6b5b;
}
.affiliate-btn:hover{
  opacity:.95;
}


.amazon-shop-block{
  margin: 18px 0 28px;
  padding: 16px;
  border: 1px solid #d9e1e5;
  border-left: 4px solid #b77a16;
  border-radius: 12px;
  background: #fffaf1;
}
.amazon-shop-block h2{
  margin: 0 0 10px !important;
  padding-top: 0 !important;
  border-top: none !important;
  font-size: 20px;
}
.amazon-shop-block p{
  margin-bottom: 12px;
  max-width: none;
}
.amazon-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.amazon-grid .affiliate-btn{
  text-align:center;
}
.affiliate-row{
  margin-top: 12px;
  margin-bottom: 18px;
}
@media (max-width: 700px){
  .amazon-grid{
    grid-template-columns: 1fr;
  }
  .amazon-grid .affiliate-btn{
    width:100%;
  }
}


.legal-list{
  padding-left: 18px;
}
.legal-list li{
  margin-bottom: 10px;
}
.utility-legal p:last-child{
  margin-bottom: 0;
}


.nav-toggle{
  display:none;
  border:1px solid #d9e1e5;
  background:#fff;
  color:#1f6b5b;
  border-radius:10px;
  padding:8px 12px;
  font-size:20px;
  line-height:1;
  cursor:pointer;
}
@media (max-width: 820px){
  .topbar{
    align-items:center;
  }
  .nav-toggle{
    display:inline-block;
  }
  .nav{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
    padding-top:12px;
  }
  .nav.open{
    display:flex;
  }
}


/* Conservative standalone header logo patch */
.brand-logo-only{
  display:flex;
  align-items:center;
  text-decoration:none;
}
.brand-logo-only img{
  width:260px;
  height:auto;
  max-width:min(260px, 58vw);
  display:block;
}
.brand-lockup span{
  display:none;
}
@media (max-width: 820px){
  .brand-logo-only img{
    width:210px;
    max-width:56vw;
  }
}
@media (max-width: 520px){
  .brand-logo-only img{
    width:165px;
    max-width:50vw;
  }
}