/* WAExtension Design System */
:root{
  --primary:#16A34A; --primary-dark:#15803D; --accent:#22C55E;
  --dark:#0F172A; --text:#1E293B; --muted:#64748B;
  --bg:#F8FAFC; --white:#FFFFFF; --border:#E2E8F0;
  --radius:14px; --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06);
  --shadow:0 6px 24px -6px rgba(15,23,42,.10);
  --shadow-lg:0 20px 50px -12px rgba(15,23,42,.18);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --container:1180px;
  --grad:linear-gradient(135deg,#16A34A 0%,#22C55E 100%);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);font-size:17px;line-height:1.65}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--primary-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--dark);line-height:1.2;margin:0 0 .6em;letter-spacing:-.02em;font-weight:800}
h1{font-size:clamp(2.2rem,5vw,4.2rem)}
h2{font-size:clamp(1.7rem,3.5vw,2.6rem)}
h3{font-size:clamp(1.25rem,2.2vw,1.6rem);font-weight:700}
h4{font-size:1.1rem;font-weight:600}
p{margin:0 0 1em}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-tight{padding:48px 0}
.text-muted{color:var(--muted)}
.center{text-align:center}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary-dark);background:#DCFCE7;border:1px solid #BBF7D0;padding:4px 12px;border-radius:999px;margin-bottom:16px}
.lead{font-size:1.15rem;color:var(--muted);max-width:680px}
.center .lead{margin-inline:auto}
/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:1rem;padding:13px 26px;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;text-decoration:none;line-height:1.2}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 4px 14px -4px rgba(22,163,74,.5)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 20px -6px rgba(22,163,74,.55)}
.btn-outline{background:var(--white);color:var(--dark);border-color:var(--border);box-shadow:var(--shadow-sm)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary-dark)}
.btn-ghost{background:transparent;color:var(--dark)}
.btn-sm{padding:8px 16px;font-size:.9rem}
.btn-lg{padding:16px 32px;font-size:1.08rem}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #86EFAC;outline-offset:2px;border-radius:6px}
/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.22rem;color:var(--dark);letter-spacing:-.02em}
.logo:hover{text-decoration:none}
.logo svg{width:30px;height:30px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-item{position:relative}
.nav-link{display:inline-flex;align-items:center;gap:5px;padding:9px 12px;font-size:.93rem;font-weight:500;color:var(--text);border-radius:8px;background:none;border:none;cursor:pointer;font-family:inherit}
.nav-link:hover{background:var(--bg);color:var(--dark);text-decoration:none}
.nav-caret{width:9px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translate(-2px,-2px);opacity:.6}
.dropdown{position:absolute;top:100%;left:0;min-width:230px;background:var(--white);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;display:none;z-index:60;margin-top:4px}
.dropdown::before{content:'';position:absolute;top:-12px;left:0;right:0;height:12px}
.dropdown.wide{min-width:440px;columns:2}
.nav-item:hover .dropdown,.nav-item:focus-within .dropdown{display:block}
.dropdown a{display:block;padding:9px 12px;border-radius:8px;color:var(--text);font-size:.92rem;break-inside:avoid;page-break-inside:avoid}
.dropdown a:hover{background:#F0FDF4;color:var(--primary-dark);text-decoration:none}
.nav-cta{display:flex;align-items:center;gap:10px}
.hamburger{display:none;background:none;border:1px solid var(--border);border-radius:8px;padding:8px 10px;cursor:pointer;margin-left:auto}
.hamburger span{display:block;width:20px;height:2px;background:var(--dark);margin:4px 0;border-radius:2px;transition:.2s}
.mobile-nav{display:none;position:fixed;inset:68px 0 0 0;background:var(--white);z-index:99;overflow-y:auto;padding:20px 24px 60px}
.mobile-nav.open{display:block}
.mobile-nav summary{font-weight:700;color:var(--dark);padding:12px 4px;list-style:none;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);cursor:pointer}
.mobile-nav summary::after{content:"+";font-size:1.2rem;color:var(--muted)}
.mobile-nav details[open] summary::after{content:"–"}
.mobile-nav details a{display:block;padding:9px 12px 9px 24px;color:var(--text);border-bottom:1px solid #F1F5F9;font-size:.95rem}
.mobile-nav .mn-actions{display:flex;flex-direction:column;gap:10px;margin-top:22px}
@media(max-width:1023px){.main-nav,.nav-cta{display:none}.hamburger{display:block}}
/* Cards */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);transition:box-shadow .2s ease,transform .2s ease}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.card-icon{width:46px;height:46px;border-radius:11px;background:#DCFCE7;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card-icon svg{width:24px;height:24px;stroke:#15803D}
.card h3{margin-bottom:.4em}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:.93rem;color:var(--primary-dark)}
.link-more::after{content:"→";transition:transform .15s}
.link-more:hover::after{transform:translateX(3px)}
/* Badges & pills */
.badge{display:inline-block;font-size:.75rem;font-weight:600;padding:3px 10px;border-radius:999px;background:#EFF6FF;color:#1D4ED8}
.badge-green{background:#DCFCE7;color:#15803D}
.badge-amber{background:#FEF3C7;color:#92400E}
.badge-slate{background:#F1F5F9;color:#475569}
/* Breadcrumbs */
.breadcrumbs{font-size:.85rem;color:var(--muted);padding:18px 0 0}
.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--primary-dark)}
.breadcrumbs li+li::before{content:"›";margin-right:6px;color:#CBD5E1}
.breadcrumbs [aria-current]{color:var(--text);font-weight:600}
/* Quick answer / AEO */
.quick-answer{background:var(--white);border:1px solid var(--border);border-left:4px solid var(--primary);border-radius:var(--radius);padding:22px 26px;box-shadow:var(--shadow-sm);margin:24px 0}
.quick-answer h2{font-size:1.15rem;margin-bottom:.35em}
.quick-answer p:last-child{margin-bottom:0}
/* FAQ accordion */
.faq-list{max-width:820px}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:14px;background:none;border:none;padding:18px 22px;font-family:inherit;font-size:1.02rem;font-weight:600;color:var(--dark);text-align:left;cursor:pointer}
.faq-q .chev{width:10px;height:10px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .2s;flex-shrink:0}
.faq-q[aria-expanded="true"] .chev{transform:rotate(-135deg)}
.faq-a{padding:0 22px 18px;color:var(--muted)}
.faq-a[hidden]{display:none}
/* Tables */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--white)}
table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:560px}
th,td{padding:13px 18px;text-align:left;border-bottom:1px solid var(--border)}
th{background:#F0FDF4;color:var(--dark);font-weight:700}
tr:last-child td{border-bottom:none}
/* Hero mockup */
.hero{background:radial-gradient(1000px 500px at 80% -10%,#DCFCE7 0%,rgba(248,250,252,0) 60%),var(--bg);padding:64px 0 72px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero .btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.trust-chip{display:inline-flex;align-items:center;gap:7px;font-size:.85rem;font-weight:600;color:var(--text);background:var(--white);border:1px solid var(--border);border-radius:999px;padding:7px 14px;box-shadow:var(--shadow-sm)}
.trust-chip svg{width:15px;height:15px;stroke:var(--primary)}
.mockup{background:var(--white);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-lg);overflow:hidden;font-size:.78rem}
.mockup-bar{display:flex;align-items:center;gap:6px;background:#F1F5F9;padding:10px 14px;border-bottom:1px solid var(--border)}
.mockup-bar i{width:10px;height:10px;border-radius:50%;background:#CBD5E1}
.mockup-body{display:grid;grid-template-columns:1fr 1.15fr;min-height:340px}
.mk-chat{border-right:1px solid var(--border);display:flex;flex-direction:column}
.mk-head{padding:10px 14px;border-bottom:1px solid var(--border);font-weight:700;color:var(--dark);display:flex;align-items:center;gap:8px}
.mk-avatar{width:26px;height:26px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.68rem;font-weight:700}
.mk-msgs{padding:12px;display:flex;flex-direction:column;gap:8px;flex:1}
.mk-msg{max-width:82%;padding:7px 11px;border-radius:10px;background:#F1F5F9;color:var(--text)}
.mk-msg.me{align-self:flex-end;background:#DCFCE7}
.mk-panel{padding:14px;background:#FBFDFB}
.mk-section{margin-bottom:12px}
.mk-label{font-size:.64rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700;margin-bottom:4px}
.mk-field{background:var(--white);border:1px solid var(--border);border-radius:8px;padding:6px 10px;margin-bottom:6px}
.mk-tag{display:inline-block;background:#DCFCE7;color:#15803D;border-radius:999px;padding:2px 9px;font-size:.66rem;font-weight:600;margin:0 4px 4px 0}
.mk-stage{display:flex;gap:4px}
.mk-stage span{flex:1;height:6px;border-radius:3px;background:#E2E8F0}
.mk-stage span.on{background:var(--primary)}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.mockup-body{grid-template-columns:1fr}.mk-chat{border-right:none;border-bottom:1px solid var(--border)}}
/* CTA band */
.cta-band{background:linear-gradient(135deg,#0F172A 0%,#134E2A 100%);border-radius:20px;padding:52px 44px;color:#E2E8F0;position:relative;overflow:hidden}
.cta-band h2{color:#fff}
.cta-band p{color:#94A3B8;max-width:560px}
.cta-band .btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
/* Steps */
.steps{counter-reset:step}
.step{display:flex;gap:18px;margin-bottom:26px}
.step-num{counter-increment:step;flex-shrink:0;width:42px;height:42px;border-radius:12px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.step-num::before{content:counter(step)}
/* Stats */
.stat-num{font-size:2.1rem;font-weight:800;color:var(--dark);letter-spacing:-.03em}
/* Footer */
.site-footer{background:var(--dark);color:#94A3B8;margin-top:80px;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(5,1fr);gap:36px;padding:60px 0 40px}
.site-footer h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:9px}
.site-footer a{color:#94A3B8}
.site-footer a:hover{color:#DCFCE7;text-decoration:none}
.footer-bottom{border-top:1px solid #1E293B;padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.82rem}
.footer-disclaimer{max-width:760px}
@media(max-width:900px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}
/* Misc */
.prose{max-width:780px}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose ul{padding-left:1.3em}
.prose li{margin-bottom:.45em}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
@media(max-width:860px){.two-col,.grid-3,.grid-4{grid-template-columns:1fr}.grid-2{grid-template-columns:1fr}}
@media(min-width:640px) and (max-width:1023px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
.search-box{display:flex;gap:10px;max-width:560px;margin-bottom:26px}
.search-box input{flex:1;padding:12px 16px;border:1px solid var(--border);border-radius:10px;font-size:1rem;font-family:inherit;background:var(--white)}
.pill-filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.pill{border:1px solid var(--border);background:var(--white);border-radius:999px;padding:7px 16px;font-size:.87rem;font-weight:600;color:var(--text);cursor:pointer;font-family:inherit}
.pill[aria-pressed="true"]{background:var(--dark);color:#fff;border-color:var(--dark)}
.form-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:36px;box-shadow:0 10px 30px -10px rgba(15,23,42,.08);max-width:100%}
.form-group{margin-bottom:20px;display:block}
.form-group label{display:block;font-weight:600;font-size:.92rem;margin-bottom:8px;color:var(--dark)}
.form-group input,.form-group select,.form-group textarea,.form-card input,.form-card select,.form-card textarea{display:block;width:100%;padding:13px 16px;border:1px solid var(--border);border-radius:10px;font-size:.98rem;font-family:inherit;background:var(--white);color:var(--text);box-sizing:border-box;transition:all .2s ease}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus,.form-card input:focus,.form-card select:focus,.form-card textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(22,163,74,.15)}
.form-row-2col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:640px){.form-row-2col{grid-template-columns:1fr}}
.form-card label{display:block;margin-bottom:18px;font-weight:600;font-size:.92rem;color:var(--dark)}
.form-card label span{display:block;margin-bottom:6px}
.price-toggle{display:inline-flex;background:var(--white);border:1px solid var(--border);border-radius:999px;padding:4px;gap:4px}
.price-toggle button{border:none;background:none;padding:8px 20px;border-radius:999px;font-weight:600;font-size:.9rem;cursor:pointer;font-family:inherit;color:var(--muted)}
.price-toggle button[aria-pressed="true"]{background:var(--dark);color:#fff}
.toc{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:20px 24px;margin:24px 0;font-size:.93rem}
.toc h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-bottom:10px}
.toc ol{margin:0;padding-left:1.2em}
.toc li{margin-bottom:5px}
.author-box{display:flex;gap:16px;align-items:center;background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin:32px 0}
.author-box .mk-avatar{width:48px;height:48px;font-size:1rem}
.meta-line{font-size:.85rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:14px;margin-bottom:14px}
.sticky-cta{display:none;position:fixed;bottom:0;left:0;right:0;z-index:90;background:var(--white);border-top:1px solid var(--border);padding:12px 16px;box-shadow:0 -6px 20px rgba(15,23,42,.08)}
.sticky-cta .btn{width:100%}
@media(max-width:640px){.sticky-cta{display:block}body{padding-bottom:72px}}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.reveal{animation:fadeUp .6s ease both}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--dark);color:#fff;padding:10px 18px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}
code,pre{background:#F1F5F9;border-radius:6px;font-size:.9em}
pre{padding:14px 16px;overflow-x:auto}
template{display:none}

/* ---- Build B/C additions ---- */
.reveal-pre{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal-pre.revealed{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal-pre{opacity:1;transform:none;transition:none}}
.sticky-cta.show{display:block}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 26px}
.pill-row .pill.on,.pill-row .pill[aria-pressed="true"]{background:var(--dark);color:#fff;border-color:var(--dark)}
.price-card .amount{font-size:2.4rem;font-weight:800;color:var(--dark);line-height:1.1}
.price-card .per{color:var(--muted);font-size:.9rem;font-weight:500}
.price-card ul{list-style:none;padding:0;margin:16px 0;display:grid;gap:9px;font-size:.93rem}
.price-card li{display:flex;gap:8px;align-items:flex-start}
.price-card li svg{width:18px;height:18px;flex:0 0 18px;margin-top:3px;color:var(--primary)}
.price-card.featured{border:2px solid var(--primary);position:relative}
.price-card.featured::before{content:"Most popular";position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--primary);color:#fff;font-size:.75rem;font-weight:700;padding:3px 14px;border-radius:999px;letter-spacing:.03em}
.tpl-body{background:#F1F5F9;border:1px dashed #94A3B8;border-radius:12px;padding:18px 20px;font-size:.98rem;line-height:1.65;white-space:pre-line;color:var(--text)}
.var-chip{display:inline-block;background:#ECFDF5;color:#15803D;border:1px solid #A7F3D0;border-radius:6px;padding:1px 8px;font-family:ui-monospace,Menlo,monospace;font-size:.85rem;margin:3px 4px 3px 0}
.search-box input{width:100%;padding:14px 18px;border:1px solid var(--border);border-radius:12px;font-size:1.05rem;font-family:inherit;background:var(--white);color:var(--text)}
.search-box input:focus{outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary)}
#search-results{margin-top:14px;background:var(--white);border:1px solid var(--border);border-radius:12px;padding:6px 20px}
#search-results ul{list-style:none;margin:0;padding:0}
#search-results li{padding:14px 0;border-bottom:1px solid var(--border)}
#search-results li:last-child{border-bottom:none}
#search-results p{margin:4px 0 0;font-size:.9rem;color:var(--muted)}
.prose table td:first-child{font-weight:600;color:var(--dark);white-space:normal}
.compare-yes{color:#15803D;font-weight:700}
.compare-no{color:#B91C1C;font-weight:600}
.compare-part{color:#B45309;font-weight:600}
.glossary-list dt{font-weight:700;color:var(--dark);margin-top:22px;font-size:1.05rem}
.glossary-list dd{margin:4px 0 0;color:var(--muted);line-height:1.65}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.3em}
.prose img{max-width:100%;height:auto;border-radius:12px}
.form-card select{width:100%;padding:11px 13px;border:1px solid var(--border);border-radius:9px;font-size:1rem;font-family:inherit;background:var(--white);color:var(--text)}
.notice{background:#FFFBEB;border:1px solid #FDE68A;color:#92400E;border-radius:12px;padding:14px 18px;font-size:.92rem;margin:18px 0}

/* ---- 4 Core Feature Segments Grid ---- */
.segment-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;background:#FAF7EF;border:1px solid #EAE3D2;border-radius:16px;padding:20px}
@media(max-width:1024px){.segment-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.segment-grid{grid-template-columns:1fr}}
.segment-column{display:flex;flex-direction:column;gap:12px}
.segment-header{display:flex;align-items:center;justify-content:space-between;padding:8px 4px}
.segment-title-wrap{display:flex;align-items:center;gap:8px}
.segment-dot{width:10px;height:10px;border-radius:50%;background-color:#EAB308;display:inline-block;flex-shrink:0}
.segment-title{font-size:.95rem;font-weight:800;color:#1E293B;margin:0}
.segment-badge{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:#FFF;border:1px solid #E2E8F0;font-size:.75rem;font-weight:700;color:#64748B}
.segment-items{display:flex;flex-direction:column;gap:10px}
.segment-feature-card{display:flex;flex-direction:column;gap:6px;background:#FFF;border:1px solid #EFECE6;border-radius:12px;padding:16px 14px;color:#334155;text-decoration:none;font-size:.88rem;line-height:1.45;transition:all .2s ease;box-shadow:0 1px 3px rgba(0,0,0,.03)}
.segment-feature-card:hover{border-color:#16A34A;transform:translateY(-2px);box-shadow:0 6px 16px rgba(22,163,74,.12);color:#0F172A}
.segment-feature-card .feat-title{font-size:.95rem;font-weight:700;color:#0F172A;margin:0;line-height:1.3}
.segment-feature-card .feat-desc{font-size:.84rem;color:#64748B;margin:0;line-height:1.4}
.segment-feature-card .feat-detail-link{font-size:.8rem;font-weight:600;color:#16A34A;display:inline-flex;align-items:center;gap:4px;margin-top:4px}
.segment-feature-card:hover .feat-detail-link{text-decoration:underline}