:root{--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--bg:#ffffff;--soft:#f9fafb;--brand:#1d4ed8;--brand-dark:#1e40af;--ok:#15803d;--bad:#dc2626;--radius:12px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5;font-size:15px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1024px;margin:0 auto;padding:0 20px}
.icon{width:18px;height:18px;flex-shrink:0;color:#374151}
.icon-lg{width:32px;height:32px;display:grid;place-items:center;border-radius:8px;background:var(--soft);border:1px solid var(--line);color:#374151;margin-bottom:10px}
.icon-lg svg{width:18px;height:18px}
/* Header + mobile nav */
.top{border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:20}
.top-in{display:flex;justify-content:space-between;align-items:center;min-height:56px;gap:12px}
.logo{color:var(--ink);font-size:16px;display:flex;align-items:center;gap:8px;font-weight:700}
.logo svg{width:22px;height:22px;color:var(--ink)}
.logo:hover{text-decoration:none}
nav.main-nav{display:flex;gap:18px;align-items:center}
nav.main-nav a{color:#4b5563;font-weight:500;font-size:14px}
.nav-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 8px;cursor:pointer}
.nav-toggle svg{width:20px;height:20px;display:block}
/* Hero + sections */
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;padding:36px 0}
h1{font-size:32px;line-height:1.15;margin:14px 0;font-weight:700;letter-spacing:-.01em}
h2{margin:0;font-size:22px;font-weight:700}h3{margin:0 0 6px;font-size:16px}h4{margin:0 0 6px;font-size:14px}
.lead{color:var(--muted);font-size:15px}
.pill{display:inline-block;background:var(--soft);color:#374151;border:1px solid var(--line);padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}
.btn{border:1px solid #d1d5db;background:#fff;color:var(--ink);border-radius:8px;padding:8px 14px;cursor:pointer;font-size:14px;font-weight:600;min-height:36px;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.btn svg{width:16px;height:16px}
.btn:hover{border-color:#9ca3af}
.btn.primary{background:var(--ink);border-color:var(--ink);color:#fff}
.btn.primary:hover{background:#000}
.btn.danger{color:var(--bad)}.btn.ghost{border-color:transparent}.btn.small{padding:5px 10px;min-height:30px;font-size:13px}.btn.full{width:100%}
.hero-cta{display:flex;gap:10px;margin:18px 0;flex-wrap:wrap}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:16px;background:#fff}
.steps{display:grid;gap:10px;margin-top:20px}
.steps div{display:flex;gap:10px;color:#374151;align-items:flex-start;font-size:14px}
.steps b{background:var(--ink);color:#fff;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;flex-shrink:0;font-size:12px}
.auth-card{height:fit-content}
.tabs{display:flex;gap:6px;margin-bottom:14px;overflow-x:auto}
.tab{border:0;background:#f3f4f6;padding:7px 12px;border-radius:999px;cursor:pointer;font-weight:600;font-size:13px;white-space:nowrap;min-height:32px}
.tab.active{background:var(--ink);color:#fff}
label{display:block;font-size:13px;font-weight:600;margin-bottom:10px}
input,textarea,select{width:100%;margin-top:5px;border:1px solid #d1d5db;border-radius:8px;padding:9px 11px;font:inherit;font-size:14px;background:#fff}
input:focus,textarea:focus,select:focus{outline:2px solid #dbeafe;border-color:var(--brand)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-bottom:36px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
.muted{color:var(--muted)}.small{font-size:12px}.center{text-align:center}.hidden{display:none!important}
.error{color:var(--bad);background:#fef2f2;border:1px solid #fecaca;padding:9px;border-radius:8px;font-size:13px}
.dash-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;padding:20px 0;flex-wrap:wrap}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.stat b{font-size:22px;display:block}.stat span{color:var(--muted);font-size:13px}
.bot-list{display:grid;gap:10px;margin-top:14px}
.bot-card{display:flex;justify-content:space-between;align-items:center;gap:12px;cursor:pointer}
.bot-card:hover{border-color:#9ca3af}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.badge.on{background:#f0fdf4;color:#166534}.badge.off{background:#fef2f2;color:#991b1b}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.row.end{justify-content:flex-end}.mt{margin-top:16px}
.cmd-list,.log-list{list-style:none;padding:0;display:grid;gap:8px}
.cmd-list li,.log-list li{border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;overflow-wrap:anywhere;font-size:14px}
.codeblock{display:block;background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:10px;word-break:break-all;font-size:13px;margin-bottom:10px;overflow:auto}
pre.codeblock{white-space:pre-wrap}
.switch{display:flex;gap:8px;align-items:center;font-weight:600;font-size:14px}.switch input{width:auto;margin:0}
dialog{border:1px solid var(--line);border-radius:16px;padding:20px;width:min(480px,calc(100vw - 32px));max-width:calc(100vw - 32px)}
.foot{display:flex;justify-content:space-between;gap:14px;padding:20px;border-top:1px solid var(--line);flex-wrap:wrap}
.api-input{width:min(280px,100%)}
#pricing{padding:20px 0 8px}
.faq{padding:20px 0 36px}.faq details{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:8px 0}.faq summary{font-weight:600;cursor:pointer;font-size:14px}
.docs{padding:28px 0 40px}.docs h2{margin-top:28px}.docs pre{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:12px;overflow:auto;font-size:13px;line-height:1.5}
.docs-nav{display:flex;gap:14px;flex-wrap:wrap;margin:14px 0}.docs-nav a{font-weight:600;font-size:14px}
.srv-tabs{display:flex;gap:6px;overflow-x:auto;margin:14px 0;padding-bottom:4px}
.srv-tabs .tab{flex-shrink:0}
.srv-panel .card{margin-bottom:14px}
.status-ok{color:var(--ok);font-weight:600}.status-fail{color:var(--bad);font-weight:600}
/* Responsive: phone first, then tablet, then desktop */
@media(max-width:820px){
  body{font-size:14px}
  nav.main-nav{display:none;position:absolute;top:56px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 20px 14px}
  nav.main-nav.open{display:flex}
  nav.main-nav a{padding:9px 0}
  .nav-toggle{display:block}
  .hero,.grid3,.grid2,.stats{grid-template-columns:1fr}
  .hero{padding-top:22px;gap:20px}
  h1{font-size:26px}
  .auth-card{order:2}
  .bot-card{align-items:flex-start;flex-direction:column}
  .dash-head{flex-direction:column}
  .foot{flex-direction:column}
  .api-input{width:100%}
}
@media(min-width:821px) and (max-width:1024px){
  .grid3{grid-template-columns:repeat(2,1fr)}
  .hero{grid-template-columns:1fr 1fr}
}