:root{--navy:#0a2540;--blue:#2b7de9;--ink:#1b2430;--muted:#5b6b7b;--line:#e3e8ee;--bg:#f6f8fb;--ok:#1f8f4e;--warn:#c77a00;--bad:#c62828}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Plus Jakarta Sans",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5;font-size:16px;display:flex;flex-direction:column;min-height:100vh}
a{color:var(--blue)}
header.top{background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:14px 24px;gap:16px;flex-wrap:wrap}
.brand{color:#fff;text-decoration:none;font-weight:800;font-size:24px;letter-spacing:-.5px}
.brand span{color:var(--blue)}
header nav{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
header nav a{color:#cfe0fa;text-decoration:none;font-weight:600;font-size:14px}
header nav a:hover{color:#fff}
button.link{background:none;border:0;color:#cfe0fa;font:inherit;font-weight:600;font-size:14px;cursor:pointer;padding:0}
form.inline{display:inline}
main.wrap{max-width:960px;width:100%;margin:0 auto;padding:32px 20px;flex:1}
main.wide{max-width:1400px;width:100%;margin:0 auto;padding:24px 20px;flex:1}
footer{background:#fff;border-top:1px solid var(--line);color:var(--muted);font-size:13px;padding:18px 24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
footer a{color:var(--muted)}
h1{font-weight:800;font-size:38px;letter-spacing:-1px;line-height:1.15;margin:0 0 12px;color:var(--navy)}
h2{font-weight:800;font-size:22px;color:var(--navy);margin:28px 0 10px}
h3{font-weight:700;font-size:16px;margin:16px 0 8px}
p.lead{font-size:19px;color:var(--muted);margin:0 0 24px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:0 1px 2px rgba(10,37,64,.04)}
.card+.card{margin-top:18px}
label{display:block;font-weight:600;font-size:14px;margin:12px 0 6px}
input[type=text],input[type=url],input[type=email],input[type=password],textarea,select{width:100%;padding:12px 14px;border:1px solid #c9d3df;border-radius:10px;font:inherit;font-size:16px;background:#fff}
input:focus,textarea:focus{outline:2px solid var(--blue);border-color:var(--blue)}
textarea{min-height:140px;resize:vertical}
.btn{display:inline-block;background:var(--blue);color:#fff;border:0;border-radius:10px;padding:12px 22px;font:inherit;font-weight:700;font-size:16px;cursor:pointer;text-decoration:none}
.btn:hover{background:#1f6ad0}
.btn.secondary{background:#fff;color:var(--navy);border:1px solid #c9d3df}
.btn.secondary:hover{background:#f0f4f9}
.btn.danger{background:var(--bad)}
.btn.small{padding:7px 12px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.6;cursor:wait}
.err{background:#fdecec;color:#8a1c1c;border:1px solid #f3c2c2;border-radius:10px;padding:10px 14px;margin:12px 0}
.msg{background:#e8f6ee;color:#1a5c36;border:1px solid #bfe3cc;border-radius:10px;padding:10px 14px;margin:12px 0}
.note{color:var(--muted);font-size:14px}
.hp{position:absolute;left:-9999px;top:-9999px;height:0;width:0;overflow:hidden}
.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:start}
@media(max-width:800px){.hero{grid-template-columns:1fr}h1{font-size:30px}}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:700px){.steps{grid-template-columns:1fr}}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.step b{display:block;color:var(--blue);font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px}
.price{font-size:44px;font-weight:800;color:var(--navy);letter-spacing:-1px}
.price small{font-size:16px;color:var(--muted);font-weight:600}
table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#f0f4f9;color:var(--navy);font-weight:700;font-size:13px}
tr:last-child td{border-bottom:0}
.tag{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:700;background:#e9eef5;color:var(--navy)}
.tag.queued{background:#fff2d9;color:#8a5300}.tag.in_review{background:#dcebff;color:#1b4f9c}.tag.delivered{background:#dff5e7;color:#1a5c36}.tag.refunded,.tag.failed{background:#fdecec;color:#8a1c1c}.tag.paid{background:#dcebff;color:#1b4f9c}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.right{text-align:right}
.ws{display:grid;grid-template-columns:1.15fr .85fr;gap:20px;align-items:start}
@media(max-width:1000px){.ws{grid-template-columns:1fr}}
.article{background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px 0;max-height:80vh;overflow:auto}
.para{padding:8px 18px 8px 54px;position:relative;border-left:3px solid transparent;cursor:pointer}
.para:hover{background:#f5f8fc}
.para.has{border-left-color:var(--blue);background:#f1f6fe}
.para .n{position:absolute;left:16px;top:9px;color:#9aa8b8;font-size:12px;font-family:ui-monospace,Menlo,monospace}
.para.h2,.para.h1,.para.h3{font-weight:800;color:var(--navy);font-size:18px}
.para.li::before{content:"• ";color:#9aa8b8}
.para.pre{font-family:ui-monospace,Menlo,monospace;font-size:13px;white-space:pre-wrap}
.notes .item{border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px;background:#fff}
.notes .item .q{color:var(--muted);font-size:13px;font-style:italic}
.sticky{position:sticky;top:12px}
pre.preview{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;white-space:pre-wrap;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;max-height:60vh;overflow:auto}
.clover-field{border:1px solid #c9d3df;border-radius:10px;padding:0 10px;height:46px;background:#fff;margin-bottom:10px}
.kind{display:flex;gap:14px;margin:8px 0}
.kind label{display:flex;align-items:center;gap:8px;font-weight:600;margin:0;background:#f0f4f9;padding:10px 14px;border-radius:10px;cursor:pointer}
.total{font-size:22px;font-weight:800;color:var(--navy)}
.cfg{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin-bottom:18px}
.cfg div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:13px}
.cfg b{display:block;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.ok{color:var(--ok);font-weight:700}.bad{color:var(--bad);font-weight:700}.warn{color:var(--warn);font-weight:700}
dl{display:grid;grid-template-columns:160px 1fr;gap:6px 12px;font-size:14px}
dt{color:var(--muted)}dd{margin:0;word-break:break-all}
.timeline{list-style:none;padding:0;margin:0;font-size:14px}
.timeline li{padding:6px 0;border-bottom:1px solid var(--line)}
/* v5: content pages, blog, brand */
.brand img{display:block;height:36px;width:auto}
.brand.small img{height:28px}
.navcta{background:var(--blue);color:#fff!important;padding:7px 14px;border-radius:8px}
.navcta:hover{background:#1f6ad0}
footer{display:block}
.footgrid{display:grid;grid-template-columns:2fr 1fr;gap:24px;max-width:960px;margin:0 auto;align-items:start}
@media(max-width:700px){.footgrid{grid-template-columns:1fr}}
.footgrid p{margin:8px 0 0}
.footgrid a{line-height:1.9}
.prose{max-width:760px;font-size:17px;line-height:1.65}
.prose h1{font-size:34px;margin-bottom:16px}
.prose h2{font-size:24px;margin:34px 0 10px}
.prose h3{font-size:18px;margin:24px 0 8px;color:var(--navy)}
.prose p{margin:0 0 16px}
.prose ul,.prose ol{padding-left:24px;margin:0 0 16px}
.prose li{margin-bottom:6px}
.prose blockquote{border-left:4px solid var(--blue);margin:16px 0;padding:6px 18px;color:#2f3b48;background:#fff;border-radius:0 10px 10px 0}
.prose table{font-size:15px;margin:0 0 18px}
.prose img{max-width:100%;border-radius:10px}
.prose code{background:#eef2f7;padding:2px 6px;border-radius:6px;font-size:.92em}
.prose pre{background:#0a2540;color:#e8eef7;padding:14px 16px;border-radius:10px;overflow:auto;font-size:14px}
.prose pre code{background:none;padding:0;color:inherit}
.prose hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.prose .toc{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 18px;font-size:15px}
.prose .toc ul{margin:0}
.home-body{margin:40px auto 0;max-width:960px}
.home-body h2{font-size:28px;letter-spacing:-.5px}
.home-body .grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.home-body .grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
@media(max-width:800px){.home-body .grid2,.home-body .grid3{grid-template-columns:1fr}}
.home-body .grid2>div,.home-body .grid3>div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.home-body .grid2 h3,.home-body .grid3 h3{margin-top:0}
.postlist .postcard{margin-top:14px}
.postcard a{color:var(--navy);text-decoration:none}
.postcard a:hover{color:var(--blue)}
.cta{margin:36px 0;background:#eaf2fd;border-color:#cfe0fa}
.editlink{margin-top:30px}
details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 16px;margin:0 0 10px}
summary{font-weight:700;cursor:pointer;color:var(--navy)}
details p{margin:10px 0 4px}
.sample{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 22px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13.5px;white-space:pre-wrap;line-height:1.5}
.badge{display:inline-block;background:#eaf2fd;color:#1b4f9c;border-radius:999px;padding:3px 10px;font-size:13px;font-weight:700;margin-right:6px}
.footgrid{grid-template-columns:2fr 1fr 1fr 1fr;font-size:13px}
@media(max-width:800px){.footgrid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.footgrid{grid-template-columns:1fr}}
.footgrid b{color:var(--navy);display:block;margin-bottom:4px}