/*
Theme Name: ACBuy UK
Theme URI: https://ac-buy.uk/
Author: AC-BUY.UK Team
Author URI: https://ac-buy.uk/
Description: A British-styled SEO-first traffic funnel theme for ACBuy Spreadsheet (ac-buy.uk). Ships with a Categories dropdown that links to fcsheet.com product pages, a fixed WhatsApp CTA, a $105 registration promo band, JSON-LD schema for FAQ/HowTo/Organization/BreadcrumbList, and pre-baked SEO copy targeting "ACBuy Spreadsheet" and related keywords.
Version: 1.2.0
Requires at least: 6.0
Tested up to: 6.6
Requires PHP: 7.4
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: acbuy-uk
Tags: seo, blog, one-column, two-columns, custom-menu, custom-logo, featured-images, full-width-template, translation-ready
*/

/* ==========================================================================
   Reset & base
   ========================================================================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--uk-ink);background:var(--uk-white);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--uk-navy);text-decoration:none;transition:color .15s ease}
a:hover{color:var(--uk-red)}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--uk-red);outline-offset:2px}

/* British Heritage palette */
:root{
  --uk-navy:#012169;
  --uk-navy-2:#0A2C7A;
  --uk-red:#C8102E;
  --uk-red-2:#8E0B1F;
  --uk-cream:#F4F1EA;
  --uk-cream-2:#EDE8DB;
  --uk-gold:#B8912F;
  --uk-ink:#1A1A2E;
  --uk-grey:#6B7280;
  --uk-line:#E5E1D8;
  --uk-white:#FFFFFF;
  --shadow-sm:0 2px 6px rgba(1,33,105,.08);
  --shadow-md:0 8px 24px rgba(1,33,105,.12);
  --shadow-lg:0 16px 40px rgba(1,33,105,.18);
  --wrap:1180px;
  --radius:2px;
}

/* Typography */
h1,h2,h3,h4,h5,h6{font-family:'Playfair Display',Georgia,serif;color:var(--uk-navy);margin:0 0 .6em;letter-spacing:-.2px;font-weight:800;line-height:1.2}
h1{font-size:clamp(32px,4.6vw,52px)}
h2{font-size:clamp(26px,3.4vw,38px)}
h3{font-size:clamp(20px,2.4vw,26px)}
h4{font-size:20px}
p{margin:0 0 1em}
strong{color:var(--uk-ink);font-weight:700}
blockquote{margin:1.4em 0;padding:18px 24px;border-left:4px solid var(--uk-gold);background:var(--uk-cream);font-style:italic;color:var(--uk-ink)}
hr{border:0;border-top:1px solid var(--uk-line);margin:32px 0}
ul,ol{padding-left:22px;margin:0 0 1em}
li{margin:.35em 0}

/* Utility */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.text-center{text-align:center}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.eyebrow{display:inline-block;font-family:'Inter',sans-serif;font-size:12px;font-weight:700;letter-spacing:2.2px;text-transform:uppercase;color:var(--uk-red);margin-bottom:12px}

/* Buttons */
.btn{display:inline-block;padding:14px 30px;border-radius:var(--radius);font-weight:700;letter-spacing:.6px;text-transform:uppercase;font-size:13px;font-family:'Inter',sans-serif;text-decoration:none;transition:transform .1s ease,box-shadow .1s ease,background .15s ease;cursor:pointer;border:0}
.btn-primary{background:var(--uk-red);color:var(--uk-white);box-shadow:0 3px 0 var(--uk-red-2)}
.btn-primary:hover{color:var(--uk-white);transform:translateY(2px);box-shadow:0 1px 0 var(--uk-red-2)}
.btn-secondary{background:transparent;color:var(--uk-navy);border:2px solid var(--uk-navy);padding:12px 28px}
.btn-secondary:hover{background:var(--uk-navy);color:var(--uk-white)}
.btn-lg{padding:18px 40px;font-size:14px}
.btn-block{display:block;width:100%;text-align:center}

/* Union Jack tricolor top bar */
.uk-topbar{height:4px;background:linear-gradient(90deg,var(--uk-navy) 0 33.3%,var(--uk-white) 33.3% 66.6%,var(--uk-red) 66.6% 100%)}

/* Header */
.site-header{background:var(--uk-white);border-bottom:1px solid var(--uk-line);position:sticky;top:0;z-index:50;box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:24px}
.site-brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.site-brand:hover{color:var(--uk-navy)}
.brand-mark{width:42px;height:42px;background:var(--uk-navy);color:var(--uk-white);display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-weight:800;font-size:20px;border-radius:2px;position:relative;overflow:hidden}
.brand-mark::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--uk-red)}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-title{font-family:'Playfair Display',serif;font-weight:800;font-size:22px;color:var(--uk-navy)}
.brand-sub{font-size:10px;letter-spacing:2px;text-transform:uppercase;color:var(--uk-grey);margin-top:4px}

/* Primary Nav */
.primary-nav{display:flex;align-items:center;gap:4px}
.primary-nav .menu{list-style:none;margin:0;padding:0;display:flex;gap:2px}
.primary-nav .menu > li{position:relative}
.primary-nav .menu > li > a{display:block;padding:22px 16px;font-family:'Playfair Display',serif;font-weight:700;font-size:15px;color:var(--uk-ink);letter-spacing:.3px}
.primary-nav .menu > li > a:hover,
.primary-nav .menu > li.current-menu-item > a{color:var(--uk-red)}
.primary-nav .menu-item-has-children > a::after{content:"";display:inline-block;margin-left:6px;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;vertical-align:middle}

/* Dropdown */
.primary-nav .sub-menu{position:absolute;top:100%;left:0;min-width:240px;background:var(--uk-cream);border:1px solid var(--uk-line);border-top:3px solid var(--uk-navy);border-radius:0 0 6px 6px;box-shadow:var(--shadow-md);padding:6px 0;list-style:none;margin:0;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:60}
.primary-nav .menu-item-has-children:hover > .sub-menu,
.primary-nav .menu-item-has-children:focus-within > .sub-menu{opacity:1;visibility:visible;transform:translateY(0)}
.primary-nav .sub-menu li a{display:block;padding:11px 22px;font-family:'Inter',sans-serif;font-size:14px;font-weight:500;color:var(--uk-ink);border-left:3px solid transparent}
.primary-nav .sub-menu li a:hover{background:var(--uk-white);color:var(--uk-navy);border-left-color:var(--uk-red)}

/* Header CTA */
.header-cta{display:flex;align-items:center;gap:12px}

/* Mobile toggle */
.mobile-toggle{display:none;width:44px;height:44px;background:transparent;border:1px solid var(--uk-line);border-radius:2px;color:var(--uk-navy);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.mobile-toggle span{display:block;width:20px;height:2px;background:currentColor;transition:transform .2s ease,opacity .2s ease}
.mobile-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.mobile-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:960px){
  .mobile-toggle{display:flex}
  .header-cta .btn{display:none}
  .primary-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--uk-white);border-top:1px solid var(--uk-line);box-shadow:var(--shadow-md);padding:12px 0;max-height:calc(100vh - 80px);overflow-y:auto}
  .primary-nav.is-open{display:block}
  .primary-nav .menu{flex-direction:column;gap:0}
  .primary-nav .menu > li > a{padding:14px 24px}
  .primary-nav .sub-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-top:1px solid var(--uk-line);background:var(--uk-cream);padding-left:16px}
}

/* Hero */
.hero{position:relative;background:linear-gradient(180deg,var(--uk-cream) 0%,var(--uk-white) 100%);padding:88px 0 96px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20% 30%,rgba(1,33,105,.05) 0,transparent 40%),radial-gradient(circle at 80% 70%,rgba(200,16,46,.04) 0,transparent 40%);pointer-events:none}
.hero-inner{position:relative;text-align:center;max-width:900px;margin:0 auto}
.hero h1{margin-bottom:24px}
.hero h1 .accent{color:var(--uk-red);white-space:nowrap}
.hero-lede{font-size:clamp(17px,1.6vw,20px);color:var(--uk-grey);margin-bottom:36px;line-height:1.6}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.hero-trust{display:flex;justify-content:center;flex-wrap:wrap;gap:28px;color:var(--uk-grey);font-size:13px;letter-spacing:.5px}
.hero-trust span{display:flex;align-items:center;gap:6px}
.hero-trust svg{width:16px;height:16px;fill:var(--uk-gold);flex-shrink:0}

/* USP strip */
.usp-strip{background:var(--uk-navy);color:var(--uk-cream);padding:22px 0}
.usp-strip-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.usp-strip-inner > div{border-right:1px solid rgba(255,255,255,.14);padding:0 12px}
.usp-strip-inner > div:last-child{border-right:0}
.usp-num{font-family:'Playfair Display',serif;font-size:28px;color:var(--uk-white);font-weight:800;line-height:1}
.usp-lbl{display:block;font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--uk-cream);opacity:.85;margin-top:8px}
@media(max-width:720px){.usp-strip-inner{grid-template-columns:repeat(2,1fr);gap:20px 16px}.usp-strip-inner > div:nth-child(2){border-right:0}}

/* Section header */
.section-head{text-align:center;max-width:760px;margin:0 auto 48px}
.section-head p{color:var(--uk-grey);font-size:17px}

/* Categories grid */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:900px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.cat-grid{grid-template-columns:1fr}}
.cat-card{display:flex;flex-direction:column;justify-content:space-between;padding:28px 26px;background:var(--uk-white);border:1px solid var(--uk-line);border-radius:4px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;color:var(--uk-ink);min-height:180px;position:relative;overflow:hidden}
.cat-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--uk-navy);transform:scaleY(0);transform-origin:top;transition:transform .25s ease}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--uk-navy);color:var(--uk-ink)}
.cat-card:hover::before{transform:scaleY(1)}
.cat-card h3{font-size:22px;margin:0 0 8px;color:var(--uk-navy)}
.cat-card p{color:var(--uk-grey);font-size:14px;margin:0}
.cat-card .cat-cta{margin-top:18px;display:inline-flex;align-items:center;gap:8px;color:var(--uk-red);font-weight:700;font-size:13px;letter-spacing:.4px;text-transform:uppercase}
.cat-card .cat-cta::after{content:"→";transition:transform .2s ease}
.cat-card:hover .cat-cta::after{transform:translateX(4px)}

/* Comparison table */
.compare-wrap{overflow-x:auto;margin:0 -12px}
.compare{width:100%;border-collapse:collapse;background:var(--uk-white);min-width:640px}
.compare th,.compare td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--uk-line);font-size:15px;vertical-align:top}
.compare thead th{background:var(--uk-navy);color:var(--uk-white);font-family:'Playfair Display',serif;font-weight:700;font-size:14px;letter-spacing:.5px;text-transform:uppercase;text-align:center}
.compare thead th.pro{background:var(--uk-red)}
.compare tbody th{font-weight:600;color:var(--uk-navy);width:26%;background:var(--uk-cream)}
.compare td{text-align:center;color:var(--uk-grey)}
.compare td.pro{background:#FDF6F7;color:var(--uk-ink);font-weight:600}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:0}

/* Steps */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}
.step{position:relative;padding:32px 26px 28px;background:var(--uk-cream);border-radius:4px;border-top:3px solid var(--uk-navy)}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:-18px;left:24px;background:var(--uk-red);color:var(--uk-white);width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-weight:800;font-size:18px;border-radius:2px;box-shadow:var(--shadow-sm)}
.step h3{margin-top:14px;font-size:20px}
.step p{color:var(--uk-grey);font-size:14px;margin-bottom:0}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{border:1px solid var(--uk-line);border-radius:4px;margin-bottom:14px;background:var(--uk-white);transition:box-shadow .2s ease,border-color .2s ease}
.faq details[open]{border-color:var(--uk-navy);box-shadow:var(--shadow-sm)}
.faq summary{list-style:none;cursor:pointer;padding:20px 24px;font-family:'Playfair Display',serif;font-weight:700;font-size:17px;color:var(--uk-navy);display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:24px;color:var(--uk-red);flex-shrink:0;transition:transform .2s ease;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 24px 22px;color:var(--uk-grey);font-size:15px;margin:0;line-height:1.7}

/* Final CTA band */
.cta-band{background:var(--uk-navy);color:var(--uk-white);padding:72px 0;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;left:0;top:0;right:0;height:4px;background:linear-gradient(90deg,var(--uk-navy) 0 33.3%,var(--uk-white) 33.3% 66.6%,var(--uk-red) 66.6% 100%)}
.cta-band h2{color:var(--uk-white)}
.cta-band p{color:var(--uk-cream);opacity:.9;font-size:17px;max-width:640px;margin:0 auto 32px}

/* Article layout */
.article-body{max-width:780px;margin:0 auto;padding:60px 0}
.article-body h2{margin-top:2em}
.article-body h3{margin-top:1.6em;color:var(--uk-ink)}
.article-body p,.article-body li{font-size:17px;color:var(--uk-ink)}
.article-body a{text-decoration:underline;text-decoration-color:var(--uk-gold);text-underline-offset:3px}

.callout{padding:20px 24px;background:var(--uk-cream);border-left:4px solid var(--uk-gold);margin:24px 0;border-radius:2px}
.callout strong{color:var(--uk-navy)}

/* Author box */
.author-box{display:flex;gap:20px;align-items:flex-start;padding:24px;background:var(--uk-cream);border-radius:4px;margin:40px 0;border-left:4px solid var(--uk-navy)}
.author-avatar{width:72px;height:72px;border-radius:50%;background:var(--uk-navy);color:var(--uk-white);display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-weight:800;font-size:26px;flex-shrink:0}
.author-info h4{margin:0 0 4px;font-size:18px}
.author-info .role{font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--uk-red);margin-bottom:8px;font-weight:700}
.author-info p{font-size:14px;color:var(--uk-grey);margin:0}

/* Footer */
.site-footer{background:var(--uk-navy);color:var(--uk-cream);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}
.footer-brand p{color:var(--uk-cream);opacity:.75;font-size:14px;line-height:1.7;margin-top:12px}
.footer-col h4{color:var(--uk-white);font-family:'Playfair Display',serif;font-size:14px;letter-spacing:2px;text-transform:uppercase;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin:8px 0}
.footer-col a{color:var(--uk-cream);opacity:.8;font-size:14px}
.footer-col a:hover{color:var(--uk-gold);opacity:1}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:22px 0;text-align:center;font-size:13px;color:var(--uk-cream);opacity:.75}
.footer-bottom .tricolor{display:inline-block;margin:0 8px;letter-spacing:2px}

/* ==========================================================================
   Promo band — $105 register invite
   ========================================================================== */
.promo-band{
  position:relative;
  background:linear-gradient(135deg,var(--uk-navy) 0%,var(--uk-navy-2) 55%,#0f3a9c 100%);
  color:var(--uk-white);
  padding:44px 0;
  overflow:hidden;
  border-top:4px solid var(--uk-gold);
  border-bottom:4px solid var(--uk-red);
}
.promo-band::before,
.promo-band::after{
  content:"";
  position:absolute;
  border-radius:50%;
  pointer-events:none;
}
.promo-band::before{
  width:280px;height:280px;
  background:radial-gradient(circle,rgba(184,145,47,.22) 0%,transparent 70%);
  top:-90px;left:-60px;
}
.promo-band::after{
  width:340px;height:340px;
  background:radial-gradient(circle,rgba(200,16,46,.18) 0%,transparent 70%);
  bottom:-140px;right:-80px;
}
.promo-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.promo-copy{flex:1 1 480px;min-width:0}
.promo-badge{
  display:inline-block;
  background:var(--uk-gold);
  color:var(--uk-navy);
  font-family:'Inter',sans-serif;
  font-size:11px;
  font-weight:800;
  letter-spacing:2px;
  text-transform:uppercase;
  padding:5px 12px;
  border-radius:2px;
  margin-bottom:12px;
}
.promo-title{
  color:var(--uk-white);
  font-size:clamp(24px,3vw,34px);
  margin:0 0 10px;
  line-height:1.2;
}
.promo-amount{
  color:var(--uk-gold);
  font-style:italic;
  padding:0 4px;
  position:relative;
  white-space:nowrap;
}
.promo-amount::after{
  content:"";
  position:absolute;
  left:2px;right:2px;bottom:2px;
  height:8px;
  background:rgba(184,145,47,.22);
  z-index:-1;
  border-radius:2px;
}
.promo-sub{
  color:var(--uk-cream);
  font-size:15px;
  margin:0;
  opacity:.92;
  line-height:1.55;
  max-width:640px;
}
.promo-code{
  display:inline-block;
  background:var(--uk-red);
  color:var(--uk-white);
  font-family:'Playfair Display',Georgia,serif;
  font-weight:800;
  letter-spacing:2px;
  padding:2px 10px;
  border-radius:2px;
  font-size:15px;
  margin:0 2px;
}
.promo-cta{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.promo-cta .btn{
  background:var(--uk-red);
  box-shadow:0 4px 0 var(--uk-red-2), 0 8px 22px rgba(200,16,46,.35);
  animation:promo-glow 2.6s ease-in-out infinite;
  white-space:nowrap;
}
.promo-cta .btn:hover{
  animation:none;
  transform:translateY(2px);
  box-shadow:0 2px 0 var(--uk-red-2), 0 4px 12px rgba(200,16,46,.35);
}
.promo-note{
  color:var(--uk-cream);
  opacity:.75;
  font-size:12px;
  letter-spacing:.4px;
}
@keyframes promo-glow{
  0%,100%{box-shadow:0 4px 0 var(--uk-red-2), 0 8px 22px rgba(200,16,46,.35)}
  50%{box-shadow:0 4px 0 var(--uk-red-2), 0 8px 32px rgba(200,16,46,.65)}
}
@media(max-width:720px){
  .promo-band{padding:36px 0}
  .promo-inner{gap:24px;text-align:center;justify-content:center}
  .promo-copy{flex-basis:100%}
  .promo-sub{margin-left:auto;margin-right:auto}
  .promo-cta{width:100%}
  .promo-cta .btn{width:100%;max-width:360px}
}

/* WhatsApp fixed */
.wa-float{position:fixed;right:24px;bottom:24px;width:60px;height:60px;background:#25D366;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.22);z-index:9999;transition:transform .2s ease,box-shadow .2s ease;animation:wa-pulse 2.4s infinite}
.wa-float:hover{transform:scale(1.08);box-shadow:0 10px 24px rgba(0,0,0,.28)}
.wa-float svg{width:32px;height:32px;fill:#fff}
@keyframes wa-pulse{0%{box-shadow:0 6px 18px rgba(0,0,0,.22),0 0 0 0 rgba(37,211,102,.55)}70%{box-shadow:0 6px 18px rgba(0,0,0,.22),0 0 0 18px rgba(37,211,102,0)}100%{box-shadow:0 6px 18px rgba(0,0,0,.22),0 0 0 0 rgba(37,211,102,0)}}
@media(max-width:640px){.wa-float{right:16px;bottom:16px;width:54px;height:54px}.wa-float svg{width:28px;height:28px}}

/* Blog list */
.post-card{padding:24px 0;border-bottom:1px solid var(--uk-line)}
.post-card h2{font-size:26px;margin-bottom:8px}
.post-card h2 a{color:var(--uk-navy)}
.post-card h2 a:hover{color:var(--uk-red)}
.post-meta{font-size:13px;color:var(--uk-grey);margin-bottom:12px;letter-spacing:.5px}
.post-excerpt{color:var(--uk-ink);opacity:.85}

/* Breadcrumb */
.breadcrumbs{padding:14px 0;font-size:13px;color:var(--uk-grey);background:var(--uk-cream);border-bottom:1px solid var(--uk-line)}
.breadcrumbs a{color:var(--uk-navy)}
.breadcrumbs .sep{margin:0 8px;color:var(--uk-line)}

/* Skip link */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--uk-red);color:var(--uk-white);padding:10px 16px;z-index:9999}
.skip-link:focus{left:12px;top:12px}

/* Print */
@media print{
  .site-header,.site-footer,.wa-float,.cta-band,.hero-cta{display:none}
}