:root{
  --paper:#EDEFF1; --card:#FFFFFF; --ink:#1B1F24; --mute:#5E666E; --rule:#CFD4D9; --soft:#E2E5E8; --dark:#20252B; --dark2:#2B3139; --err:#8A2F2F;
  --sans:"Helvetica Neue",Helvetica,"Segoe UI",Roboto,Arial,sans-serif; --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
a{color:inherit}
h1,h2,h3{font-weight:650;letter-spacing:-.025em;line-height:1.12;margin:0 0 .5em}
.muted{color:var(--mute)} .small{font-size:12.5px} .num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.ic{flex:none;vertical-align:middle}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
button,input,select,textarea{font:inherit;color:inherit}
/* buttons and forms */
.btn{display:inline-block;background:var(--ink);color:#fff;border:1px solid var(--ink);padding:11px 20px;border-radius:5px;font-weight:600;font-size:14px;text-decoration:none;cursor:pointer;text-align:center;transition:transform .12s,background .12s}
.btn:hover{background:#000}.btn:active{transform:translateY(1px)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--ink)}.btn.ghost:hover{background:var(--soft)}
.btn.light{background:#fff;color:var(--ink);border-color:#fff}.btn.light:hover{background:var(--soft)}
.btn.sm{padding:6px 12px;font-size:12.5px}.btn.block{display:block;width:100%}.btn[disabled]{opacity:.4;cursor:not-allowed}
.btn.danger{background:transparent;color:var(--err);border-color:var(--err)}
label{display:block;font-weight:600;font-size:13.5px}
label input,label select,label textarea{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid var(--rule);border-radius:5px;background:#fff;font-weight:400}
input[type=checkbox]{width:auto;display:inline;margin:0 8px 0 0}
label.check{font-weight:500;display:flex;align-items:center}
.stack>*+*{margin-top:16px}.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}.three{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
hr{border:0;border-top:1px solid var(--rule);margin:22px 0}
.note{display:flex;gap:10px;align-items:flex-start;background:#fff;border:1px solid var(--rule);border-radius:5px;padding:12px 16px;margin-bottom:18px;font-size:14px}
.note.err{border-color:var(--err);color:var(--err)}
.note.privacy{background:var(--soft);border-color:var(--soft)}
.note.privacy .ic{margin-top:3px}
/* auth */
.auth-body{display:grid;place-items:center;min-height:100vh;padding:24px}
.auth-card{width:100%;max-width:420px;background:#fff;border:1px solid var(--rule);border-radius:8px;padding:36px}
.auth-card h1{font-size:28px}.auth-card .brand{margin-bottom:26px}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;letter-spacing:-.02em;text-decoration:none}
/* app shell */
.shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.side{background:var(--dark);color:#D9DDE1;padding:26px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side .brand{color:#fff;margin:0 8px 30px}
.side-label{font-size:12px;color:#8D959D;margin:0 10px 8px}
.side nav a{display:flex;gap:11px;align-items:center;padding:9px 10px;border-radius:5px;text-decoration:none;font-size:14px;color:#BFC5CB}
.side nav a:hover{background:var(--dark2);color:#fff}.side nav a.on{background:#fff;color:var(--ink)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:6px;padding:0 10px;font-size:13px}
.side-foot a{color:#BFC5CB}.side-foot .muted{color:#8D959D;overflow:hidden;text-overflow:ellipsis}
.main{padding:40px clamp(18px,4vw,56px) 80px;max-width:1180px;width:100%}
.main h1{font-size:30px}.lede{color:var(--mute);max-width:62ch;margin:-4px 0 26px}
.panel{background:#fff;border:1px solid var(--rule);border-radius:7px;padding:26px 28px;margin-bottom:22px}
.panel h2{font-size:18px;margin-bottom:4px}.panel .help{color:var(--mute);font-size:13.5px;margin:0 0 18px}
.drop{border:1.5px dashed var(--rule);border-radius:6px;padding:20px;transition:background .15s,border-color .15s}
.drop.over,.drop.has{background:var(--paper);border-color:var(--ink)}
.drop.has{border-style:solid}
.drop .file-name{margin-top:8px;font-size:12.5px;font-family:var(--mono)}
/* meters and stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:22px}
.stat{background:#fff;border:1px solid var(--rule);border-radius:7px;padding:16px 18px}
.stat .l{font-size:13px;color:var(--mute)}.stat .v{font-family:var(--mono);font-size:26px;font-weight:600;margin-top:4px;word-break:break-all}.stat .s{font-size:12px;color:var(--mute);margin-top:2px}
.meter{height:6px;background:var(--soft);border-radius:3px;overflow:hidden;margin-top:10px}.meter i{display:block;height:100%;background:var(--ink)}
/* tables */
.tbl-wrap{overflow:auto;border:1px solid var(--rule);border-radius:6px;max-height:420px;background:#fff}
table.t{width:100%;border-collapse:collapse;font-size:13px}
table.t th{position:sticky;top:0;background:var(--paper);text-align:left;padding:9px 12px;border-bottom:1px solid var(--rule);font-weight:600;white-space:nowrap}
table.t td{padding:9px 12px;border-bottom:1px solid var(--soft);white-space:nowrap;vertical-align:top}
table.t td.r,table.t th.r{text-align:right;font-family:var(--mono)}
table.t tr:last-child td{border-bottom:0}
table.t td.wrap{white-space:normal;min-width:200px}
tr.review td{background:repeating-linear-gradient(135deg,#fff 0 6px,var(--paper) 6px 12px)}
.badge{display:inline-block;border:1px solid var(--ink);border-radius:20px;padding:1px 10px;font-size:12px;font-weight:600}
.badge.fill{background:var(--ink);color:#fff}.badge.faint{border-color:var(--rule);color:var(--mute)}
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--rule);margin-bottom:14px}
.tabs button{background:none;border:0;border-bottom:2px solid transparent;padding:9px 16px;font-weight:600;color:var(--mute);cursor:pointer}
.tabs button.on{color:var(--ink);border-bottom-color:var(--ink)}
.sum{width:100%;border-collapse:collapse}.sum td{padding:9px 14px;border-bottom:1px solid var(--soft);font-size:14px}.sum td:last-child{text-align:right;font-family:var(--mono)}
.sum tr.tot td{font-weight:700;background:var(--paper)}
.sumbox{border:1px solid var(--rule);border-radius:6px;overflow:hidden;margin-bottom:22px}
.banner{padding:13px 16px;border-radius:6px;font-weight:600;margin-bottom:18px;border:1px solid var(--ink)}
.banner.ok{background:var(--ink);color:#fff}
.dash{display:grid;grid-template-columns:230px 1fr;gap:16px;margin-bottom:16px}
.card{background:var(--paper);border:1px solid var(--rule);border-radius:6px;padding:16px 18px}
.kpis{display:grid;grid-template-columns:1fr 1fr;gap:14px}.kpis .card .v{font-family:var(--mono);font-size:24px;font-weight:600}
.card .l{font-size:12.5px;color:var(--mute)}
.wf{overflow-x:auto}.wf svg{min-width:640px;width:100%;height:auto;display:block}
.hist{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:13px 0;border-bottom:1px solid var(--soft);flex-wrap:wrap}
.hist:last-child{border-bottom:0}
/* switches */
.switch{display:flex;align-items:center;gap:10px;font-weight:500;cursor:pointer}
.switch input{appearance:none;width:34px;height:20px;border-radius:20px;background:var(--rule);position:relative;margin:0;cursor:pointer;transition:background .15s;flex:none}
.switch input::after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .15s}
.switch input:checked{background:var(--ink)}.switch input:checked::after{transform:translateX(14px)}
/* plans */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;align-items:stretch}
.plan{background:#fff;border:1px solid var(--rule);border-radius:8px;padding:30px 28px;display:flex;flex-direction:column}
.plan h3{font-size:22px;margin-bottom:4px}.plan-tag{color:var(--mute);font-size:14px;margin:0 0 22px;min-height:44px}
.plan .price{margin-bottom:22px}.plan .amt{font-family:var(--mono);font-size:34px;font-weight:600;letter-spacing:-.03em}.plan .per{color:var(--mute);font-size:13px}
.plan ul{list-style:none;padding:0;margin:0 0 26px;flex:1}
.plan li{display:flex;gap:10px;padding:7px 0;border-top:1px solid var(--soft);font-size:14px;align-items:center}
.plan li.off{color:#9AA1A8}.plan li .dash{width:16px;height:1.5px;background:#B6BCC2;flex:none}
.plan.featured{background:var(--dark);color:#E6E9EC;border-color:var(--dark);transform:translateY(-10px)}
.plan.featured .plan-tag,.plan.featured .per{color:#A5ACB3}.plan.featured li{border-color:var(--dark2)}.plan.featured li.off{color:#6F7780}
.plan.featured h3,.plan.featured .amt{color:#fff}
/* ---------- landing ---------- */
.mode-public .wrap{max-width:1120px;margin:0 auto;padding:0 clamp(18px,4vw,40px)}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:22px 0}
.topbar nav{display:flex;gap:26px;align-items:center;font-size:14px}.topbar nav a{text-decoration:none}.topbar nav a.t{color:var(--mute)}.topbar nav a.t:hover{color:var(--ink)}
.hero{display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center;padding:56px 0 90px}
.hero h1{font-size:clamp(40px,5.6vw,68px);letter-spacing:-.045em;line-height:1.02;margin-bottom:22px}
.hero p{font-size:18px;color:var(--mute);max-width:46ch;margin:0 0 30px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.hero .fine{font-size:13px;color:var(--mute);display:flex;gap:8px;align-items:center}
.sheet{background:#fff;border:1px solid var(--rule);border-radius:4px;padding:22px 22px 26px;position:relative;
  background-image:linear-gradient(to bottom,transparent 41px,var(--soft) 41px);background-size:100% 100%}
.sheet-head{display:grid;grid-template-columns:1fr 1fr;gap:28px;font-size:12.5px;font-weight:700;padding-bottom:12px;border-bottom:1.5px solid var(--ink);margin-bottom:6px}
.sheet-body{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.col>div{display:flex;justify-content:space-between;gap:10px;height:44px;align-items:center;border-bottom:1px solid var(--soft);font-size:13px;position:relative}
.col .d{color:var(--mute);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.col .a{font-family:var(--mono);font-size:12.5px}
.col>div .tick{position:absolute;right:-24px;top:10px;color:var(--ink);width:22px;height:22px}
.col>div .tick path{stroke-dasharray:40;stroke-dashoffset:40}
.col>div.done .tick path{animation:draw .45s ease forwards}
.col>div.query .ring{position:absolute;inset:6px -6px;border:1.5px solid var(--ink);border-radius:20px;opacity:0;transition:opacity .4s}
.col>div.query.done .ring{opacity:1}
@keyframes draw{to{stroke-dashoffset:0}}
.sheet-foot{margin-top:16px;font-size:12.5px;color:var(--mute);display:flex;justify-content:space-between}
.band{padding:90px 0;border-top:1px solid var(--rule)}
.band h2{font-size:clamp(28px,3.4vw,42px);max-width:20ch;margin-bottom:14px}
.band .sub{color:var(--mute);max-width:56ch;margin:0 0 40px;font-size:17px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1.5px solid var(--ink)}
.steps>div{padding:24px 28px 8px 0}.steps>div+div{padding-left:28px;border-left:1px solid var(--rule)}
.steps h3{font-size:19px}.steps p{color:var(--mute);margin:0}
.steps .n{font-family:var(--mono);font-size:13px;color:var(--mute);display:block;margin-bottom:26px}
.rules{border-top:1.5px solid var(--ink)}
.rule{display:grid;grid-template-columns:260px 1fr;gap:28px;padding:20px 0;border-bottom:1px solid var(--rule)}
.rule h3{font-size:17px;margin:0}.rule p{margin:0;color:var(--mute);max-width:60ch}
.dark{background:var(--dark);color:#D9DDE1;border-top:0}
.dark h2{color:#fff}.dark .sub{color:#A5ACB3}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.timeline{border:1px solid var(--dark2);border-radius:6px;padding:26px}
.timeline .bar{height:10px;border-radius:5px;background:var(--dark2);position:relative;margin:18px 0 12px;overflow:hidden}
.timeline .bar i{position:absolute;inset:0 auto 0 0;width:0;background:#fff;transition:width 2.4s cubic-bezier(.2,.7,.2,1)}
.timeline.in .bar i{width:100%}
.timeline .ticks{display:flex;justify-content:space-between;font-size:13px;color:#A5ACB3}
.faq details{border-bottom:1px solid var(--rule);padding:18px 0}.faq summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between}
.faq summary::after{content:"+";font-family:var(--mono)}.faq details[open] summary::after{content:"–"}
.faq p{color:var(--mute);max-width:64ch;margin:10px 0 0}
.closer{padding:90px 0;text-align:left}.closer h2{font-size:clamp(30px,4vw,52px);max-width:16ch}
footer.foot{border-top:1px solid var(--rule);padding:28px 0 40px;display:flex;justify-content:space-between;color:var(--mute);font-size:13px;flex-wrap:wrap;gap:12px}
@media(max-width:900px){
  .shell{grid-template-columns:1fr}.side{position:static;height:auto}.side nav{display:flex;flex-wrap:wrap}.side-foot{margin-top:18px}
  .hero,.split{grid-template-columns:1fr;gap:40px}.steps{grid-template-columns:1fr}.steps>div+div{padding-left:0;border-left:0;border-top:1px solid var(--rule)}
  .rule{grid-template-columns:1fr;gap:6px}.dash{grid-template-columns:1fr}.two,.three{grid-template-columns:1fr}.plan.featured{transform:none}
  .topbar nav .t{display:none}.col>div .tick{right:-4px;top:-6px;width:16px;height:16px}
}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}.col>div .tick path{stroke-dashoffset:0}}