/* CardWatch — payments & merchant services blog
   Light, forum-feed layout. No dark mode by design. */

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,600;8..60,700&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --ink: #171A1F;
  --ink-soft: #4B5563;
  --ink-faint: #8A93A0;
  --bg: #EEF1F5;
  --surface: #FFFFFF;
  --border: #DEE3E9;
  --border-soft: #E9ECF1;
  --accent: #1E4FD8;
  --accent-dark: #163DA6;
  --accent-soft: #E9EFFC;
  --green: #0F8A65;
  --green-soft: #E2F5EE;
  --amber: #B9660C;
  --amber-soft: #FBEFE0;
  --plum: #7C3AED;
  --plum-soft: #F1EAFD;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 1px 2px rgba(23,26,31,0.04);
  --maxw: 1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,sans-serif;
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Source Serif 4', Georgia, serif;
  font-weight:600;
  color:var(--ink);
  line-height:1.2;
  margin:0 0 .5em;
}
a{color:var(--accent); text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%; display:block;}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px;}

.wrap{max-width:var(--maxw); margin:0 auto; padding:0 20px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:40;
  background:var(--surface);
  border-bottom:1px solid var(--border);
}
.site-header .wrap{
  display:flex; align-items:center; gap:20px;
  height:64px;
}
.logo{
  display:flex; align-items:center; gap:9px;
  font-family:'Source Serif 4', serif;
  font-weight:700; font-size:20px; color:var(--ink);
  flex-shrink:0;
}
.logo:hover{text-decoration:none;}
.logo .mark{
  width:28px; height:28px; border-radius:7px;
  background:var(--accent);
  color:#fff; display:flex; align-items:center; justify-content:center;
  font-family:'Inter',sans-serif; font-weight:700; font-size:14px;
}
.site-search{
  flex:1; max-width:420px;
  display:flex; align-items:center; gap:8px;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:20px;
  padding:8px 14px;
  color:var(--ink-faint);
  font-size:14px;
}
.site-search svg{flex-shrink:0;}
.site-search input{
  border:none; background:transparent; outline:none;
  font-size:14px; color:var(--ink); width:100%;
  font-family:'Inter',sans-serif;
}
.main-nav{
  display:flex; align-items:center; gap:22px;
  margin-left:auto;
  font-size:14.5px; font-weight:500;
}
.main-nav a{color:var(--ink-soft);}
.main-nav a.current, .main-nav a:hover{color:var(--accent); text-decoration:none;}
.nav-toggle{display:none;}

@media (max-width:760px){
  .site-search{display:none;}
  .main-nav{
    display:none;
  }
  .main-nav.open{
    display:flex; position:absolute; top:64px; left:0; right:0;
    background:var(--surface); border-bottom:1px solid var(--border);
    flex-direction:column; align-items:flex-start; gap:0; padding:6px 20px 14px;
  }
  .main-nav.open a{padding:9px 0; width:100%;}
  .nav-toggle{
    display:inline-flex; margin-left:auto; background:none; border:none;
    cursor:pointer; padding:6px; color:var(--ink);
  }
}

/* ---------- Layout: feed + sidebar ---------- */
.page-body{padding:32px 0 64px;}
.layout{
  display:grid;
  grid-template-columns: 1fr 320px;
  gap:28px;
  align-items:start;
}
@media (max-width:900px){
  .layout{grid-template-columns:1fr;}
}

/* ---------- Home hero / intro band ---------- */
.intro-band{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px 28px 22px;
  margin-bottom:22px;
}
.intro-band.with-photo{
  position:relative;
  padding:0;
  overflow:hidden;
  background-image:
    linear-gradient(100deg, rgba(255,255,255,0.97) 0%, rgba(255,255,255,0.94) 38%, rgba(255,255,255,0.62) 68%, rgba(255,255,255,0.30) 100%),
    var(--hero-img);
  background-size:cover;
  background-position:center right;
}
.intro-band.with-photo .intro-text{
  padding:30px 28px 24px;
  max-width:640px;
}
@media (max-width:700px){
  .intro-band.with-photo{
    background-image:
      linear-gradient(180deg, rgba(255,255,255,0.97) 55%, rgba(255,255,255,0.75) 100%),
      var(--hero-img);
    background-position:top center;
  }
}
.intro-band h1{font-size:30px; max-width:640px;}
.intro-band p{
  color:var(--ink-soft); max-width:620px; font-size:16px; margin:0 0 16px;
}
.stat-strip{
  display:flex; gap:22px; flex-wrap:wrap;
  font-size:13.5px; color:var(--ink-faint);
  border-top:1px solid var(--border-soft); padding-top:14px;
}
.stat-strip strong{color:var(--ink); font-weight:600;}

/* ---------- Filter chips (home) ---------- */
.chip-row{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:18px;}
.chip{
  font-size:13px; font-weight:500; padding:7px 13px;
  border-radius:20px; border:1px solid var(--border);
  background:var(--surface); color:var(--ink-soft);
  cursor:pointer; user-select:none;
}
.chip[aria-pressed="true"]{
  background:var(--accent); color:#fff; border-color:var(--accent);
}

/* ---------- Post feed cards ---------- */
.feed{display:flex; flex-direction:column; gap:12px;}
.post-card{
  display:flex; gap:14px;
  background:var(--surface);
  border:1px solid var(--border);
  border-left:3px solid var(--cat-color, var(--accent));
  border-radius:var(--radius);
  padding:18px 20px;
  box-shadow:var(--shadow-card);
}
.post-card .cat-dot{
  width:9px; height:9px; border-radius:50%;
  background:var(--cat-color, var(--accent));
  margin-top:6px; flex-shrink:0;
}
.post-card-body{flex:1;}
.post-meta-row{
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
  font-size:12.5px; color:var(--ink-faint); margin-bottom:6px;
}
.cat-tag{
  font-weight:600; color:var(--cat-color, var(--accent));
}
.post-card h3{
  font-size:19px; margin-bottom:6px;
}
.post-card h3 a{color:var(--ink);}
.post-card h3 a:hover{color:var(--accent); text-decoration:none;}
.post-card p{color:var(--ink-soft); font-size:14.5px; margin:0;}
.dot-sep::before{content:"·"; margin:0 2px;}

/* ---------- Sidebar ---------- */
.sidebar{display:flex; flex-direction:column; gap:16px;}
.side-card{
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); padding:18px 18px;
}
.side-card h4{
  font-family:'Inter',sans-serif; font-size:13px; font-weight:700;
  text-transform:none; color:var(--ink); margin-bottom:10px;
  padding-bottom:10px; border-bottom:1px solid var(--border-soft);
}
.side-card p{font-size:13.8px; color:var(--ink-soft); margin:0 0 10px;}
.side-card .btn{margin-top:2px;}
.topic-list{list-style:none; margin:0; padding:0; font-size:14px;}
.topic-list li{
  display:flex; justify-content:space-between; align-items:center;
  padding:8px 0; border-bottom:1px solid var(--border-soft);
}
.topic-list li:last-child{border-bottom:none;}
.topic-list a{color:var(--ink-soft); font-weight:500;}
.topic-list a:hover{color:var(--accent);}
.topic-list .count{
  font-size:12px; color:var(--ink-faint); background:var(--bg);
  border-radius:10px; padding:2px 8px;
}
.start-list{list-style:none; margin:0; padding:0; font-size:14px; counter-reset:s;}
.start-list li{
  counter-increment:s; padding:9px 0; border-bottom:1px solid var(--border-soft);
  display:flex; gap:10px; align-items:baseline;
}
.start-list li:last-child{border-bottom:none;}
.start-list li::before{
  content:counter(s); font-family:'Source Serif 4',serif; font-weight:700;
  color:var(--accent); font-size:15px; flex-shrink:0;
}
.start-list a{color:var(--ink); font-weight:500;}

.btn{
  display:inline-block; background:var(--accent); color:#fff;
  font-weight:600; font-size:14px; padding:9px 16px;
  border-radius:var(--radius-sm); border:none; cursor:pointer;
}
.btn:hover{background:var(--accent-dark); text-decoration:none;}
.btn.outline{
  background:transparent; color:var(--accent); border:1px solid var(--accent);
}
.btn.outline:hover{background:var(--accent-soft);}

/* ---------- Article page ---------- */
.breadcrumb{font-size:13px; color:var(--ink-faint); margin-bottom:14px;}
.breadcrumb a{color:var(--ink-faint);}
.breadcrumb a:hover{color:var(--accent);}
.article-card{
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); padding:34px 38px 40px;
}
@media (max-width:560px){ .article-card{padding:24px 18px 30px;} }
.article-meta{
  display:flex; align-items:center; gap:10px; flex-wrap:wrap;
  font-size:13px; color:var(--ink-faint); margin-bottom:10px;
}
.article-card h1{font-size:32px; margin-bottom:14px; max-width:34ch;}
.lead{font-size:18px; color:var(--ink-soft); margin-bottom:24px; max-width:62ch;}
.article-card h2{
  font-size:22px; margin-top:34px; padding-top:2px;
}
.article-card h3{font-size:17.5px; margin-top:22px;}
.article-card p{margin:0 0 16px; max-width:70ch; color:#262A31;}
.article-card ul, .article-card ol{margin:0 0 16px; padding-left:22px; max-width:68ch;}
.article-card li{margin-bottom:7px;}
.callout{
  background:var(--accent-soft); border-left:3px solid var(--accent);
  border-radius:var(--radius-sm); padding:14px 18px; margin:20px 0;
  font-size:14.5px; color:var(--ink);
}
.callout strong{color:var(--accent-dark);}
table.pricing-table, table.compare-table{
  width:100%; border-collapse:collapse; margin:18px 0 22px; font-size:14.5px;
}
table.pricing-table th, table.pricing-table td,
table.compare-table th, table.compare-table td{
  border:1px solid var(--border); padding:10px 12px; text-align:left;
}
table.pricing-table th, table.compare-table th{
  background:var(--bg); font-weight:600; font-family:'Inter',sans-serif;
}
.disclaimer-box{
  margin-top:34px; padding-top:20px; border-top:1px solid var(--border-soft);
  font-size:13.3px; color:var(--ink-faint);
}
.disclaimer-box a{color:var(--ink-faint); text-decoration:underline;}

/* ---------- Featured / inline article images ---------- */
.featured-image{
  margin:22px 0 26px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--bg);
}
.featured-image img{
  width:100%;
  max-height:420px;
  object-fit:cover;
  display:block;
}
.featured-image figcaption{
  padding:10px 16px;
  font-size:13px;
  color:var(--ink-faint);
  border-top:1px solid var(--border-soft);
  background:var(--surface);
}

.related-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin:14px 0 0;
}
@media (max-width:760px){ .related-grid{grid-template-columns:1fr;} }
.related-grid .rcard{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:14px 16px; font-size:13.8px;
}
.related-grid .rcard .cat-tag{font-size:11.5px; display:block; margin-bottom:5px;}
.related-grid .rcard a{color:var(--ink); font-weight:600;}
.related-grid .rcard a:hover{color:var(--accent);}

.toc{font-size:13.6px;}
.toc ol{list-style:none; margin:0; padding:0; counter-reset:t;}
.toc li{counter-increment:t; padding:6px 0; border-bottom:1px solid var(--border-soft);}
.toc li:last-child{border-bottom:none;}
.toc li::before{content:counter(t) "."; color:var(--accent); font-weight:600; margin-right:6px;}
.toc a{color:var(--ink-soft);}
.toc a:hover{color:var(--accent);}

/* ---------- Legal / plain pages ---------- */
.legal-card{
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); padding:34px 38px 40px; max-width:760px;
}
@media (max-width:560px){ .legal-card{padding:24px 18px 30px;} }
.legal-card h1{font-size:30px; margin-bottom:6px;}
.updated{font-size:13px; color:var(--ink-faint); margin-bottom:26px;}
.legal-card h2{font-size:19px; margin-top:28px;}
.legal-card p, .legal-card li{color:#262A31; font-size:15px;}
.legal-card ul{padding-left:20px;}
.single-col .layout{grid-template-columns:1fr;}

/* ---------- Contact ---------- */
.contact-grid{display:grid; grid-template-columns:1.3fr 1fr; gap:20px;}
@media (max-width:760px){ .contact-grid{grid-template-columns:1fr;} }
.form-row{margin-bottom:14px;}
.form-row label{display:block; font-size:13.5px; font-weight:600; margin-bottom:5px;}
.form-row input, .form-row textarea, .form-row select{
  width:100%; padding:10px 12px; border:1px solid var(--border);
  border-radius:var(--radius-sm); font-family:'Inter',sans-serif; font-size:14.5px;
  background:#FBFCFD;
}
.form-row textarea{min-height:120px; resize:vertical;}
.contact-info-list{list-style:none; margin:0; padding:0; font-size:14.5px;}
.contact-info-list li{padding:11px 0; border-bottom:1px solid var(--border-soft);}
.contact-info-list li:last-child{border-bottom:none;}
.contact-info-list .label{display:block; font-size:12px; color:var(--ink-faint); margin-bottom:2px;}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--border);
  background:var(--surface);
  padding:32px 0 26px;
  margin-top:20px;
}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:24px;
  margin-bottom:22px;
}
@media (max-width:700px){ .footer-grid{grid-template-columns:1fr 1fr;} }
.footer-grid h5{
  font-size:12.5px; font-weight:700; color:var(--ink-faint);
  margin:0 0 10px; font-family:'Inter',sans-serif;
}
.footer-grid ul{list-style:none; margin:0; padding:0; font-size:13.8px;}
.footer-grid li{margin-bottom:8px;}
.footer-grid a{color:var(--ink-soft);}
.footer-grid a:hover{color:var(--accent);}
.footer-about p{font-size:13.5px; color:var(--ink-soft); max-width:280px;}
.footer-bottom{
  border-top:1px solid var(--border-soft); padding-top:16px;
  font-size:12.5px; color:var(--ink-faint);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;
}
.footer-bottom a{color:var(--ink-faint);}