/* ============================================================
   Retail POS Plus — Design System V1
   Tokens: Ink #0F172A / Primary #2563EB / Accent #0F766E
   Success #15803D / Warning #B45309 / Surface #F8FAFC / Border #E2E8F0
   ============================================================ */
:root{
  --ink:#0F172A; --ink-soft:#334155; --ink-mute:#64748B;
  --primary:#2563EB; --primary-dark:#1D4ED8; --primary-soft:#EFF6FF;
  --accent:#0F766E; --accent-soft:#F0FDFA;
  --success:#15803D; --success-soft:#F0FDF4;
  --warning:#B45309; --warning-soft:#FFFBEB;
  --surface:#F8FAFC; --surface-2:#F1F5F9;
  --border:#E2E8F0; --white:#FFFFFF;
  --radius:12px; --radius-sm:8px;
  --shadow:0 1px 2px rgba(15,23,42,.06),0 4px 16px rgba(15,23,42,.06);
  --shadow-lg:0 4px 8px rgba(15,23,42,.08),0 12px 32px rgba(15,23,42,.10);
  --container:1200px; --content:780px; --sidebar:300px;
  --font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--white);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--container);margin:0 auto;padding:0 20px}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;line-height:1;padding:13px 22px;border-radius:var(--radius-sm);border:2px solid transparent;cursor:pointer;text-decoration:none!important;transition:background .15s,color .15s,border-color .15s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#115E59}
.btn-outline{background:var(--white);color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--ink-mute)}
.btn-lg{padding:16px 28px;font-size:16px;border-radius:var(--radius)}
.btn-sm{padding:9px 14px;font-size:13.5px}
.btn-block{display:flex;width:100%}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:19px;color:var(--ink);letter-spacing:-.02em;text-decoration:none!important;white-space:nowrap}
.logo img{width:30px;height:30px}
.logo .plus{color:var(--primary)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a:not(.btn){color:var(--ink-soft);font-weight:500;font-size:14.5px;padding:8px 11px;border-radius:6px;text-decoration:none!important}
.main-nav a:not(.btn):hover{color:var(--primary);background:var(--primary-soft)}
.main-nav a.active:not(.btn){color:var(--primary);background:var(--primary-soft)}
.header-cta{margin-left:6px}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}
@media(max-width:920px){
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);flex-direction:column;align-items:stretch;padding:12px 20px 16px;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .main-nav a:not(.btn){padding:12px}
  .header-cta{margin:8px 0 0}
}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{font-size:13px;color:var(--ink-mute);padding:18px 0 0}
.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumbs li+li::before{content:"›";margin-right:6px;color:var(--border)}
.breadcrumbs a{color:var(--ink-mute)}
.breadcrumbs a:hover{color:var(--primary)}

/* ---------- Page hero / article header ---------- */
.page-head{padding-top:26px;padding-bottom:8px}
.page-head h1{font-size:clamp(28px,4.2vw,40px);line-height:1.15;letter-spacing:-.02em;max-width:860px}
.page-head .lede{margin-top:14px;font-size:18px;color:var(--ink-soft);max-width:760px}
.byline{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;font-size:13.5px;color:var(--ink-mute)}
.byline .dot::before{content:"·";margin:0 4px}

/* ---------- Hero (homepage) ---------- */
.hero{background:linear-gradient(180deg,var(--primary-soft),#fff 90%);border-bottom:1px solid var(--border);padding:64px 0 56px}
.hero h1{font-size:clamp(30px,4.6vw,46px);line-height:1.12;letter-spacing:-.025em;max-width:800px}
.hero p.lede{margin-top:16px;font-size:19px;color:var(--ink-soft);max-width:680px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-trust{margin-top:22px;font-size:13.5px;color:var(--ink-mute);display:flex;flex-wrap:wrap;gap:8px 22px}
.hero-trust span::before{content:"✓";color:var(--success);font-weight:700;margin-right:6px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,480px);gap:48px;align-items:center}
.hero-art img{width:100%;height:auto}
@media(max-width:960px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .hero-art{max-width:440px}
}
.finder-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}
@media(max-width:960px){.finder-grid{grid-template-columns:minmax(0,1fr)}}

/* ---------- Sections ---------- */
.section{padding:52px 0}
.section.alt{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:760px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,3vw,30px);letter-spacing:-.02em}
.section-head p{margin-top:8px;color:var(--ink-soft)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin-bottom:8px}

/* ---------- Disclosure ---------- */
.disclosure{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--ink-mute);border-radius:var(--radius-sm);padding:12px 16px;font-size:13px;color:var(--ink-soft);margin:20px 0}
.disclosure a{color:var(--primary)}

/* ---------- Cards & grids ---------- */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card h3{font-size:17px;letter-spacing:-.01em}
.card p{color:var(--ink-soft);font-size:14.5px;margin-top:8px}
.link-card{display:block;color:inherit;text-decoration:none!important;transition:box-shadow .15s,transform .15s}
.link-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.link-card .card-cta{margin-top:12px;font-size:14px;font-weight:600;color:var(--primary)}

/* ---------- POS product card ---------- */
.pos-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.pos-card .pos-top{padding:20px 20px 14px}
.pos-rank{font-size:12px;font-weight:700;color:var(--ink-mute);letter-spacing:.06em;text-transform:uppercase}
.pos-card h3{font-size:19px;margin-top:4px}
.badge-bestfor{display:inline-block;margin-top:10px;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:13px;padding:5px 10px;border-radius:6px}
.score-pill{display:inline-flex;align-items:center;gap:6px;background:var(--ink);color:#fff;font-weight:700;font-size:14px;padding:5px 12px;border-radius:999px}
.score-pill small{font-weight:500;color:#CBD5E1}
.pos-facts{list-style:none;margin:14px 0 0;border-top:1px solid var(--border)}
.pos-facts li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--border);font-size:13.5px}
.pos-facts li span:first-child{color:var(--ink-mute)}
.pos-facts li span:last-child{font-weight:600;text-align:right}
.pos-card .pos-actions{margin-top:auto;padding:16px 20px 20px;display:flex;flex-direction:column;gap:9px}
.pos-note{font-size:12px;color:var(--ink-mute);text-align:center}

/* ---------- Verdict / boxes ---------- */
.verdict-box{background:var(--primary-soft);border:1px solid #BFDBFE;border-radius:var(--radius);padding:22px 24px;margin:26px 0}
.verdict-box h2,.verdict-box .box-title{font-size:16px;text-transform:uppercase;letter-spacing:.05em;color:var(--primary-dark);margin-bottom:8px}
.bestfor-box{background:var(--accent-soft);border:1px solid #99F6E4;border-radius:var(--radius);padding:18px 22px;margin:22px 0}
.bestfor-box .box-title{color:var(--accent);font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px}
.methodology-box{background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius);padding:18px 22px;margin:26px 0;font-size:14px;color:var(--ink-soft)}
.methodology-box .box-title{font-weight:700;color:var(--ink);margin-bottom:6px}
.warn-box{background:var(--warning-soft);border:1px solid #FDE68A;border-radius:var(--radius-sm);padding:14px 18px;font-size:14px;color:#92400E;margin:20px 0}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--border);border-radius:var(--radius)}
table.tbl{border-collapse:collapse;width:100%;min-width:640px;font-size:14px}
.tbl th,.tbl td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}
.tbl thead th{background:var(--surface);font-weight:700;white-space:nowrap}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl td strong{color:var(--ink)}
.tbl .win{color:var(--success);font-weight:700}
.tbl .lose{color:var(--ink-mute)}
.tbl .num{white-space:nowrap;font-variant-numeric:tabular-nums}
@media(max-width:720px){
  .tbl.sticky-first th:first-child,.tbl.sticky-first td:first-child{position:sticky;left:0;background:#fff;box-shadow:2px 0 0 var(--border);min-width:130px;font-weight:600}
  .tbl.sticky-first thead th:first-child{background:var(--surface);z-index:1}
}
.price-tag{font-weight:700;white-space:nowrap}
.price-note{font-size:12px;color:var(--ink-mute)}

/* ---------- Pros & cons ---------- */
.proscons{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:24px 0}
@media(max-width:680px){.proscons{grid-template-columns:1fr}}
.pros,.cons{border-radius:var(--radius);padding:20px 22px;font-size:14.5px}
.pros{background:var(--success-soft);border:1px solid #BBF7D0}
.cons{background:#FEF2F2;border:1px solid #FECACA}
.pros h3,.cons h3{font-size:15px;margin-bottom:10px}
.pros h3{color:var(--success)}
.cons h3{color:#B91C1C}
.pros ul,.cons ul{list-style:none}
.pros li,.cons li{padding:5px 0 5px 24px;position:relative;color:var(--ink-soft)}
.pros li::before{content:"✓";position:absolute;left:0;color:var(--success);font-weight:700}
.cons li::before{content:"✕";position:absolute;left:0;color:#B91C1C;font-weight:700}

/* ---------- Score ---------- */
.score-breakdown{margin:22px 0}
.score-row{display:grid;grid-template-columns:170px 1fr 44px;gap:12px;align-items:center;padding:7px 0;font-size:14px}
.score-row .bar{height:8px;background:var(--surface-2);border-radius:99px;overflow:hidden}
.score-row .bar i{display:block;height:100%;background:var(--accent);border-radius:99px}
.score-row .val{font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
@media(max-width:560px){.score-row{grid-template-columns:110px 1fr 40px}}

/* ---------- Article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,var(--content)) var(--sidebar);gap:44px;padding:30px 0 60px;align-items:start}
.article-body{order:1;min-width:0}
.article-sidebar{order:2;position:sticky;top:84px}
@media(max-width:960px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-body{order:1}
  .article-sidebar{order:2;position:static}
}
.article-body h2{font-size:24px;letter-spacing:-.015em;margin:40px 0 14px;scroll-margin-top:84px}
.article-body h3{font-size:19px;margin:28px 0 10px;scroll-margin-top:84px}
.article-body p{margin:0 0 16px;color:var(--ink-soft);font-size:16.5px;line-height:1.7}
.article-body ul,.article-body ol{margin:0 0 18px 22px;color:var(--ink-soft)}
.article-body li{margin:6px 0;font-size:16px;line-height:1.65}
.article-body blockquote{border-left:4px solid var(--primary);background:var(--primary-soft);padding:14px 18px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:20px 0;color:var(--ink-soft)}
.article-body .last-updated{font-size:13px;color:var(--ink-mute)}

/* ---------- Sidebar ---------- */
.side-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:18px;box-shadow:var(--shadow)}
.side-box h3{font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-mute);margin-bottom:12px}
.side-box .side-cta{margin-top:12px}
.side-box .btn + .btn{margin-top:9px}
.toc{list-style:none}
.toc li{margin:0}
.toc a{display:block;padding:6px 0;font-size:13.5px;color:var(--ink-soft);border-bottom:1px solid var(--surface-2)}
.toc a:hover{color:var(--primary);text-decoration:none}
.toc a.active{color:var(--primary);font-weight:700}

/* ---------- FAQ ---------- */
.faq details{border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 18px;margin:10px 0;background:#fff}
.faq summary{font-weight:600;cursor:pointer;font-size:15.5px}
.faq details p{margin-top:10px;color:var(--ink-soft);font-size:15px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#CBD5E1;margin-top:40px;padding:56px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:32px}
@media(max-width:960px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
.footer-grid h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.07em;margin-bottom:14px}
.footer-grid ul{list-style:none}
.footer-grid li{margin:8px 0}
.footer-grid a{color:#CBD5E1}
.footer-grid a:hover{color:#fff}
.footer-brand p{margin-top:12px;font-size:13.5px;line-height:1.65;color:#94A3B8}
.footer-legal{border-top:1px solid #1E293B;margin-top:44px;padding:20px 0;font-size:12.5px;color:#94A3B8;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
.footer-legal a{color:#94A3B8}

/* ---------- Misc ---------- */
.chip{display:inline-block;background:var(--surface-2);color:var(--ink-soft);border:1px solid var(--border);border-radius:999px;font-size:12.5px;font-weight:600;padding:4px 11px}
.kicker{font-size:13px;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:.07em}
.hr-dashed{border:0;border-top:1px dashed var(--border);margin:28px 0}
.newsletter{background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-radius:var(--radius);color:#fff;padding:34px;text-align:center}
.newsletter h2{color:#fff;font-size:24px}
.newsletter p{color:#DBEAFE;margin:10px auto 20px;max-width:520px}
.newsletter .btn{background:#fff;color:var(--primary-dark)}
.calc-teaser{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.calc-teaser h3{font-size:19px}
.calc-teaser p{color:var(--ink-soft);font-size:14.5px;margin-top:6px;max-width:560px}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:10px;z-index:99}
.skip-link:focus{left:10px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}