*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.6;color:#111827;background:#f6f7f9}
a{color:#0f766e;text-decoration:none}
a:hover{text-decoration:underline}
.topbar{background:#0f172a;color:#fff}
.topbar-inner{max-width:1080px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.logo{font-weight:800;font-size:1.25rem;color:#fff}
.logo span{color:#5eead4}
nav a{color:#d0d5dd;margin-left:16px;font-weight:600;font-size:.95rem}
nav a:first-child{margin-left:0}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px 48px}
.hero{background:#0f766e;color:#fff;border-radius:20px;padding:36px 32px;margin:24px 0}
.hero h1{font-size:2.3rem;line-height:1.15;margin:0 0 12px;max-width:680px}
.hero p{font-size:1.1rem;max-width:680px;margin:0 0 18px}
.pills{display:flex;gap:10px;flex-wrap:wrap}
.pill{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);color:#fff;padding:7px 12px;border-radius:999px;font-size:.9rem;font-weight:600}
.card{background:#fff;border:1px solid #e4e7ec;border-radius:16px;padding:24px;box-shadow:0 6px 24px rgba(16,24,40,.05)}
.card h2{margin-top:0}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.mini{border:1px solid #e4e7ec;border-radius:14px;padding:18px;background:#fff}
.mini h3{margin:0 0 6px}
.mini p{color:#475569;margin:0 0 12px}
.section{margin-top:28px}
.note{background:#f3f4f6;border:1px solid #d1d5db;border-radius:12px;padding:14px}
.warn{background:#fef3c7;border:1px solid #f59e0b;border-radius:12px;padding:14px}
table{border-collapse:collapse;width:100%;background:#fff}
th,td{border:1px solid #e4e7ec;padding:10px;text-align:left;vertical-align:top}
th{background:#f9fafb}
code{background:#f3f4f6;padding:2px 5px;border-radius:4px;word-break:break-word}
pre{background:#f3f4f6;border:1px solid #d1d5db;border-radius:12px;padding:14px;overflow-x:auto}
pre code{background:none;padding:0}
label{display:block;font-weight:700;margin:16px 0 6px}
textarea{width:100%;min-height:180px;padding:10px;font:1rem/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;border:1px solid #6b7280;border-radius:10px;background:#fff;color:#111827}
textarea:focus,button:focus,input:focus{outline:3px solid #0f766e;outline-offset:2px}
fieldset{border:1px solid #d1d5db;border-radius:12px;padding:12px 14px;margin:16px 0}
legend{font-weight:700;padding:0 6px}
fieldset label{font-weight:400;margin:6px 0}
.row{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}
button{cursor:pointer;font-size:1rem;padding:10px 16px;border-radius:10px;border:1px solid #1f2937;background:#111827;color:#fff}
button.secondary{background:#fff;color:#111827}
.btn{display:inline-block;background:#0f172a;color:#fff;padding:12px 18px;border-radius:12px;font-weight:700}
.btn:hover{text-decoration:none}
#status{font-weight:600}
#error{color:#991b1b;font-weight:600}
#stats{white-space:pre-wrap;background:#f9fafb;border:1px solid #d1d5db;border-radius:12px;padding:14px}
footer{max-width:1080px;margin:0 auto;padding:20px;border-top:1px solid #e4e7ec;color:#667085;font-size:.9rem;display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
@media(max-width:820px){.cards{grid-template-columns:1fr}.hero h1{font-size:1.9rem}.hero{padding:28px 20px}}