:root{
  --ink:#141d1f;--muted:#54636b;--line:#dde3e1;--bg:#f7f8f4;--panel:#fff;
  --brand:#0f766e;--brand-dark:#134e4a;--accent:#c98a3c;--good:#3f8f6b;--warn:#b45f4d;
  --shadow:0 18px 44px rgba(20,29,31,.10);--radius:10px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--brand)}
img{max-width:100%}

/* Header / nav */
.topbar{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:14px clamp(18px,4vw,58px);border-bottom:1px solid var(--line);background:rgba(247,248,244,.94);position:sticky;top:0;z-index:5;backdrop-filter:blur(10px)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;color:var(--ink)}
.brand span{display:grid;place-items:center;width:40px;height:40px;border-radius:8px;background:var(--brand);color:#fff;font-size:13px;letter-spacing:.02em}
nav{display:flex;gap:6px;flex-wrap:wrap}
nav a,.footer-links a{font-size:14.5px;text-decoration:none;color:var(--muted);padding:7px 10px;border-radius:6px}
nav a:hover,.footer-links a:hover{color:var(--ink);background:rgba(15,118,110,.08)}
nav a[aria-current="page"]{color:var(--brand);font-weight:700}

/* Hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.85fr);gap:44px;align-items:center;padding:56px clamp(18px,4vw,64px) 36px}
.hero-copy{max-width:800px}
.eyebrow{margin:0 0 14px;text-transform:uppercase;font-weight:800;font-size:12.5px;letter-spacing:.11em;color:var(--brand)}
h1{margin:0 0 18px;font-size:clamp(34px,5.6vw,58px);line-height:1.06;letter-spacing:-.01em}
h2{margin:0 0 16px;font-size:clamp(25px,3vw,36px);line-height:1.16;letter-spacing:-.01em}
h3{margin:0 0 10px;font-size:21px;line-height:1.25}
p{margin:0 0 15px}
.hero p,.lead{font-size:19px;color:var(--muted);max-width:760px}
.hero-img{aspect-ratio:1.3;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.hero-img img{width:100%;height:100%;object-fit:cover;display:block}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 20px;border-radius:8px;border:1px solid var(--line);background:#fff;text-decoration:none;font-weight:700;color:var(--ink);transition:.15s}
.button:hover{border-color:var(--brand)}
.button.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.button.primary:hover{background:var(--brand-dark);border-color:var(--brand-dark)}

/* Generic sections */
.section{padding:34px clamp(18px,4vw,64px)}
.section.tight{padding-top:14px}
.band{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.kicker{text-transform:uppercase;font-weight:800;font-size:12.5px;letter-spacing:.1em;color:var(--accent);margin:0 0 8px}

/* Article page */
.page{padding:46px clamp(18px,4vw,64px) 26px;max-width:840px;margin:0 auto}
.page.wide{max-width:1020px}
.breadcrumb{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.breadcrumb a{text-decoration:none}
.page h2{margin-top:38px}
.page h3{margin-top:26px}
.page p,.page li{font-size:17.5px;color:#33403f}
.page ul,.page ol{padding-left:22px}
.page li{margin-bottom:8px}
.meta{font-size:14px;color:var(--muted);margin:-6px 0 24px}

/* Function / category cards */
.grid{display:grid;gap:16px}
.grid.c3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.c2{grid-template-columns:repeat(2,minmax(0,1fr))}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:block;text-decoration:none;color:inherit;transition:.15s}
a.card:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-2px)}
.card .ic{font-size:26px;display:block;margin-bottom:12px}
.card h3{margin-bottom:6px}
.card p{color:var(--muted);font-size:15.5px;margin:0}
.card .more{display:inline-block;margin-top:12px;font-weight:700;color:var(--brand);font-size:14.5px}

/* Criteria / comparison table */
.tbl{width:100%;border-collapse:collapse;margin:18px 0;font-size:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.tbl th,.tbl td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{background:#eef2ee;font-weight:700;font-size:14.5px}
.tbl tr:last-child td{border-bottom:0}
.tbl td:first-child{font-weight:600}
.scroll{overflow-x:auto}

/* SaaS recommendation block */
.saas{border:1px solid var(--line);border-left:5px solid var(--brand);border-radius:var(--radius);background:#fff;padding:18px 20px;margin:16px 0}
.saas .tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--brand);background:rgba(15,118,110,.1);padding:3px 9px;border-radius:20px;margin-bottom:8px}
.saas h4{margin:0 0 6px;font-size:18px}
.saas p{margin:0;color:var(--muted);font-size:15.5px}
.saas .pending{margin-top:10px;font-size:13.5px;color:var(--accent);font-weight:700}

/* Amazon shelf */
.shelf-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.shop-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;padding:8px 0 6px}
.shop{display:flex;flex-direction:column;justify-content:space-between;min-height:104px;padding:15px;border-radius:8px;background:#fff;border:1px solid var(--line);text-decoration:none;color:inherit}
.shop span{font-weight:700;font-size:15px}
.shop small{margin-top:16px;color:var(--accent);font-weight:800}
.shop:hover{border-color:var(--accent);box-shadow:0 12px 26px rgba(20,29,31,.08)}

/* Checklist */
.checklist{display:grid;gap:10px;list-style:none;margin:16px 0 22px;padding:0}
.checklist li{background:#fff;border:1px solid var(--line);border-left:5px solid var(--good);border-radius:8px;padding:13px 16px;font-size:16.5px}
.checklist li strong{color:var(--ink)}

/* Callout */
.callout{background:#eef4f0;border:1px solid #cfe0d6;border-radius:var(--radius);padding:16px 18px;margin:18px 0}
.callout.warn{background:#fbf0ec;border-color:#eccabf}
.callout p{margin:0;font-size:16px}

/* TOC */
.toc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;margin:0 0 26px}
.toc strong{display:block;font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:8px}
.toc ul{margin:0;padding-left:18px}
.toc li{font-size:15.5px;margin-bottom:4px}

/* FAQ */
.faq{margin:20px 0}
.faq details{background:#fff;border:1px solid var(--line);border-radius:8px;padding:4px 16px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700;padding:12px 0;font-size:17px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";color:var(--brand);font-weight:800;margin-right:10px}
.faq details[open] summary::before{content:"\2013"}
.faq p{padding:0 0 14px;color:#33403f;font-size:16px;margin:0}

/* pill row */
.pills{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.pill{font-size:14px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:6px 13px;color:var(--muted);text-decoration:none}
.pill:hover{border-color:var(--brand);color:var(--brand)}

/* Footer */
footer{display:flex;justify-content:space-between;gap:28px;padding:36px clamp(18px,4vw,64px);border-top:1px solid var(--line);background:#eef2ec;color:var(--muted);margin-top:40px}
footer strong{color:var(--ink)}
.footer-disclosure{max-width:640px;font-size:13.5px}
.footer-links{display:flex;gap:6px;flex-wrap:wrap;align-content:flex-start}

@media(max-width:900px){
  .topbar{position:static;align-items:flex-start;flex-direction:column}
  .hero{grid-template-columns:1fr;padding-top:34px}
  .cards,.grid.c3{grid-template-columns:1fr 1fr}
  .shop-grid{grid-template-columns:1fr 1fr}
  h1{font-size:38px}
  footer{flex-direction:column}
}
@media(max-width:560px){
  .cards,.grid.c3,.grid.c2,.shop-grid{grid-template-columns:1fr}
  .hero-img{aspect-ratio:1.15}
  h1{font-size:32px}
  .hero p,.lead{font-size:17px}
}