/* blog.css — SlipZap Blog Styles */
:root {
  --navy:    #1E2A5A;
  --indigo:  #4F46E5;
  --indigo-d:#3730A3;
  --indigo-l:#EEF2FF;
  --indigo-m:#C7D2FE;
  --emerald: #059669;
  --emerald-l:#D1FAE5;
  --crimson: #DC2626;
  --crimson-l:#FEE2E2;
  --amber:   #D97706;
  --amber-l: #FEF3C7;
  --slate:   #F1F5F9;
  --snow:    #FFFFFF;
  --border:  #E2E8F2;
  --border2: #CBD5E1;
  --ink:     #0D1340;
  --ink-mid: #475569;
  --ink-dim: #94A3B8;
  --teal:    #0891B2;
  --teal-l:  #E0F7FA;
  --purple:  #7C3AED;
  --purple-l:#EDE9FE;
  --r:       14px;
  --r-sm:    8px;
  --r-lg:    20px;
  --sh-sm:   0 1px 4px rgba(13,19,64,.06);
  --sh-md:   0 4px 18px rgba(13,19,64,.08);
  --sans:    'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:    'JetBrains Mono', 'SF Mono', monospace;
  --serif:   'Lora', Georgia, serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--sans);background:var(--slate);
  color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased;
}
.app{max-width:1200px;margin:0 auto;padding:0 20px 80px;}

/* ─── Header ─── */
.site-header{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 0 16px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;}
.brand-mark{
  width:40px;height:40px;border-radius:11px;
  background:linear-gradient(145deg,var(--indigo),var(--indigo-d));
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:0 4px 14px rgba(79,70,229,.38);
}
.brand-mark svg{width:22px;height:22px;}
.brand-name{font-weight:800;font-size:22px;letter-spacing:-.03em;line-height:1;}
.brand-name em{color:var(--indigo);font-style:normal;}
.hbadges{display:flex;gap:7px;flex-wrap:wrap;}
.hbadge{
  display:inline-flex;align-items:center;font-size:12px;font-weight:700;
  padding:5px 10px;border-radius:20px;white-space:nowrap;
}
.hbadge-blue{background:var(--indigo-l);color:var(--indigo-d);}
.hbadge-teal{background:var(--teal-l);color:var(--teal);}
.hbadge-grn{background:var(--emerald-l);color:var(--emerald);}
@media(max-width:640px){.hbadges{display:none;}}

/* ─── Breadcrumb ─── */
.breadcrumb{
  display:flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--ink-dim);margin-bottom:20px;flex-wrap:wrap;
}
.breadcrumb a{color:var(--indigo);text-decoration:none;font-weight:600;}
.breadcrumb a:hover{text-decoration:underline;}
.breadcrumb-sep{color:var(--border2);}

/* ─── Ad slots ─── */
.ad-slot{
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(79,70,229,.04),rgba(8,145,178,.04));
  border:1.5px dashed var(--border2);border-radius:var(--r-sm);
  color:var(--ink-dim);font-family:var(--mono);font-size:11px;
  letter-spacing:.06em;text-transform:uppercase;
}
.ad-banner{width:100%;max-width:728px;height:90px;margin:18px auto;}
.ad-inline{width:100%;height:250px;margin:28px 0;}
.ad-sidebar{width:300px;height:250px;}
@media(max-width:600px){.ad-banner{height:50px;}.ad-sidebar{width:100%;}}

/* ─── Blog Layout ─── */
.blog-layout{
  display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start;
}
@media(max-width:960px){.blog-layout{grid-template-columns:1fr;}}

.blog-sidebar{
  position:sticky;top:20px;display:flex;flex-direction:column;gap:16px;
}
@media(max-width:960px){.blog-sidebar{display:none;}}

.sidebar-card{
  background:var(--snow);border:1px solid var(--border);
  border-radius:var(--r);padding:20px;box-shadow:var(--sh-sm);
}
.sidebar-title{font-size:13px;font-weight:800;color:var(--ink);
  text-transform:uppercase;letter-spacing:.05em;margin-bottom:14px;}
.sidebar-links{list-style:none;display:flex;flex-direction:column;gap:8px;}
.sidebar-links li a{
  font-size:13.5px;color:var(--indigo);text-decoration:none;
  font-weight:600;line-height:1.4;
}
.sidebar-links li a:hover{text-decoration:underline;}

/* ─── Article ─── */
.blog-article{min-width:0;}

.blog-hero{
  background:linear-gradient(135deg,#1A1754 0%,#4F46E5 60%,#7C3AED 100%);
  border-radius:var(--r-lg);padding:32px 36px 30px;margin-bottom:24px;
}
.blog-category{
  display:inline-flex;align-items:center;
  background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);
  color:rgba(255,255,255,.9);border-radius:20px;
  padding:4px 12px;font-size:11.5px;font-weight:700;
  text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px;
}
.blog-hero h1{
  font-size:clamp(20px,3vw,30px);font-weight:800;color:#fff;
  letter-spacing:-.03em;line-height:1.18;margin-bottom:12px;
}
.blog-intro{font-size:15px;color:rgba(255,255,255,.76);line-height:1.65;max-width:600px;}
.blog-meta-bar{
  display:flex;align-items:center;gap:14px;margin-top:16px;
  font-size:12px;color:rgba(255,255,255,.6);font-weight:500;flex-wrap:wrap;
}
.blog-meta-bar span{display:flex;align-items:center;gap:5px;}
@media(max-width:600px){.blog-hero{padding:24px 22px 22px;}}

/* ─── Article body ─── */
.blog-body{
  background:var(--snow);border:1px solid var(--border);
  border-radius:var(--r);padding:32px;box-shadow:var(--sh-sm);
}
@media(max-width:600px){.blog-body{padding:20px 18px;}}

.blog-body h2{
  font-size:21px;font-weight:800;color:var(--navy);letter-spacing:-.02em;
  margin:32px 0 12px;line-height:1.25;
}
.blog-body h2:first-child{margin-top:0;}
.blog-body h3{
  font-size:16px;font-weight:700;color:var(--ink);
  margin:22px 0 8px;
}
.blog-body p{font-size:15.5px;color:#374151;line-height:1.75;margin-bottom:16px;}
.blog-body ul,.blog-body ol{
  padding-left:22px;margin-bottom:16px;
  display:flex;flex-direction:column;gap:8px;
}
.blog-body li{font-size:15px;color:#374151;line-height:1.65;}
.blog-body strong{color:var(--navy);font-weight:700;}

/* ─── Tables ─── */
.blog-body .table-wrap{overflow-x:auto;margin:20px 0 28px;border-radius:var(--r-sm);box-shadow:var(--sh-sm);}
.blog-body table{
  width:100%;border-collapse:collapse;font-size:14px;
  min-width:400px;background:var(--snow);
}
.blog-body th{
  background:var(--navy);color:#fff;font-weight:700;
  padding:11px 16px;text-align:left;font-size:13px;letter-spacing:.02em;
}
.blog-body td{
  padding:10px 16px;border-bottom:1px solid var(--border);
  color:#374151;font-size:13.5px;
}
.blog-body tr:last-child td{border-bottom:none;}
.blog-body tr:nth-child(even) td{background:#F8FAFF;}
.blog-body td.mono,.blog-body th.mono{font-family:var(--mono);font-size:13px;}

/* ─── Callout boxes ─── */
.callout{
  border-radius:var(--r-sm);padding:16px 20px;margin:20px 0;
  border-left:4px solid;font-size:14.5px;line-height:1.65;
}
.callout-blue{background:var(--indigo-l);border-color:var(--indigo);color:var(--indigo-d);}
.callout-green{background:var(--emerald-l);border-color:var(--emerald);color:#064E3B;}
.callout-amber{background:var(--amber-l);border-color:var(--amber);color:#78350F;}
.callout-title{font-weight:800;margin-bottom:5px;display:block;}
.formula{
  background:#F0F0FF;border:1.5px solid var(--indigo-m);border-radius:var(--r-sm);
  padding:14px 18px;font-family:var(--mono);font-size:14px;color:var(--navy);
  margin:16px 0;overflow-x:auto;
}

/* ─── CTA box ─── */
.cta-box{
  background:linear-gradient(135deg,#1A1754 0%,#4F46E5 60%,#7C3AED 100%);
  border-radius:var(--r);padding:28px 32px;text-align:center;margin:32px 0;
}
.cta-box h3{font-size:18px;font-weight:800;color:#fff;margin-bottom:8px;}
.cta-box p{font-size:14px;color:rgba(255,255,255,.75);margin-bottom:20px;line-height:1.6;}
.cta-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--indigo);font-weight:800;font-size:15px;
  padding:13px 28px;border-radius:10px;text-decoration:none;
  transition:transform .18s,box-shadow .18s;
  box-shadow:0 4px 16px rgba(0,0,0,.18);
}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.22);}

/* ─── FAQ ─── */
.faq-section{margin-top:36px;}
.faq-section h2{
  font-size:20px;font-weight:800;color:var(--navy);margin-bottom:16px;
}
.faq-item{
  border:1px solid var(--border);border-radius:var(--r-sm);
  overflow:hidden;margin-bottom:10px;background:var(--snow);
}
.faq-q{
  width:100%;background:none;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 18px;font-family:var(--sans);font-size:14.5px;
  font-weight:700;color:var(--ink);text-align:left;gap:12px;
  transition:background .15s;
}
.faq-q:hover{background:var(--slate);}
.faq-icon{flex-shrink:0;font-size:18px;color:var(--indigo);transition:transform .2s;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;
  font-size:14px;color:var(--ink-mid);line-height:1.7;
}
.faq-item.open .faq-a{max-height:300px;padding:0 18px 16px;}

/* ─── Article footer ─── */
.article-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:28px;}
.tag{
  background:var(--indigo-l);color:var(--indigo);font-size:12px;
  font-weight:700;padding:4px 11px;border-radius:20px;
}
.related-posts{margin-top:32px;}
.related-posts h3{font-size:16px;font-weight:800;color:var(--navy);margin-bottom:14px;}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;}
.related-card{
  background:var(--snow);border:1px solid var(--border);border-radius:var(--r-sm);
  padding:16px;text-decoration:none;color:inherit;transition:box-shadow .15s,border-color .15s;
  display:block;
}
.related-card:hover{box-shadow:var(--sh-md);border-color:var(--indigo-m);}
.related-card-title{font-size:13.5px;font-weight:700;color:var(--navy);line-height:1.45;}
.related-card-meta{font-size:11.5px;color:var(--ink-dim);margin-top:6px;}

/* ─── Footer ─── */
.disclaimer{
  margin:32px auto 0;font-size:11.5px;color:var(--ink-dim);text-align:center;
  max-width:700px;line-height:1.7;padding:16px 20px;
  background:var(--snow);border:1px solid var(--border);border-radius:var(--r-sm);
}
.disclaimer strong{color:var(--ink-mid);}
::-webkit-scrollbar{width:6px;}
::-webkit-scrollbar-track{background:var(--slate);}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px;}