:root{--bg:#f5f7fa;--card:#fff;--text:#172033;--muted:#667085;--line:#e4e7ec;--primary:#101828;--blue:#1570ef;--green:#067647;--red:#b42318}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.5 Inter,Arial,sans-serif}
a{color:var(--blue);text-decoration:none}
.top{min-height:72px;background:var(--primary);color:#fff;padding:14px max(20px,calc((100% - 1240px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px}
.top strong{display:block;font-size:20px}.top span{display:block;color:#98a2b3;font-size:12px}
nav{display:flex;flex-wrap:wrap;gap:8px}nav a{color:#d0d5dd;padding:9px 11px;border-radius:8px}nav a:hover{background:#1d2939;color:#fff}
.container{max-width:1240px;margin:0 auto;padding:28px 20px 60px}
.card,.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 28px rgba(16,24,40,.04)}
.card{padding:24px;margin-bottom:22px}
h1,h2{margin-top:0}h1{font-size:30px}h2{font-size:20px}
.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--muted);font-weight:800}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0}.stat{padding:22px}.stat span{display:block;color:var(--muted)}.stat strong{display:block;font-size:28px;margin-top:7px}
.grid2{display:grid;grid-template-columns:360px 1fr;gap:22px}
.formgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
label{display:block;font-weight:700;margin-bottom:15px}
input,select,textarea{width:100%;margin-top:7px;border:1px solid #d0d5dd;border-radius:9px;padding:11px 12px;font:inherit;color:var(--text);background:#fff}
textarea{resize:vertical}.editor{font:13px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;min-height:540px}
button,.button{border:0;border-radius:9px;background:var(--primary);color:#fff;padding:12px 18px;font-weight:800;cursor:pointer;display:inline-block}
.button.secondary{background:var(--blue);margin-top:15px}.small{padding:7px 9px}.inline{display:flex;gap:6px}.inline select{margin:0;padding:7px}
.table{overflow:auto}table{width:100%;border-collapse:collapse;min-width:650px}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line)}th{font-size:12px;color:var(--muted)}
.badge{background:#f2f4f7;border-radius:999px;padding:5px 8px;font-size:12px}
.auth{max-width:430px;margin:55px auto}
.flash{padding:13px 16px;border-radius:10px;margin-bottom:18px}.flash.success{background:#ecfdf3;color:var(--green)}.flash.error{background:#fef3f2;color:var(--red)}
details{border:1px solid var(--line);border-radius:12px;padding:15px;margin:16px 0}summary{cursor:pointer;font-weight:800}.help{color:var(--muted);font-size:13px}.check{display:flex;align-items:center;gap:9px}.check input{width:auto;margin:0}
code{background:#f2f4f7;border-radius:5px;padding:2px 5px;font-size:12px}
.invoice{max-width:620px;margin:50px auto;text-align:center}.invoice .amount{font-size:42px;font-weight:900;margin:20px}.qr{width:300px;max-width:100%}.invoice textarea{min-height:120px;font:12px monospace;margin-top:16px}
@media(max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}.grid2{grid-template-columns:1fr}}
@media(max-width:680px){.top{align-items:flex-start;flex-direction:column}.container{padding:18px 12px}.card{padding:18px}.stats,.formgrid{grid-template-columns:1fr}.stats{gap:10px}h1{font-size:25px}nav{width:100%}nav a{padding:7px 8px}}

.actions{display:flex;flex-wrap:wrap;gap:7px;align-items:center}
.actions form,.inline{margin:0}
.secondary-action{background:var(--blue)}