:root{
  --canvas:#fff;
  --surface:#fafafa;
  --surface-dark:#171717;
  --hairline:#e5e5e5;
  --hairline-strong:#d4d4d4;
  --ink:#000;
  --ink-deep:#090909;
  --charcoal:#525252;
  --body:#737373;
  --mute:#a3a3a3;
  --on-dark:#fff;
  --ok:#27c93f;
  --warn:#ffbd2e;
  --danger:#ff5f56;
  --focus:rgba(59,130,246,.5);
  --rounded-lg:12px;
  --rounded-full:9999px;
}
*{box-sizing:border-box}
html{background:var(--canvas)}
body{
  margin:0;
  min-height:100vh;
  background:var(--canvas);
  color:var(--ink);
  font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;
  line-height:1.5;
}
a{color:var(--ink);text-decoration:none}
a:hover{text-decoration:underline}
.topbar{
  height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:0 24px;
  background:var(--canvas);
  border-bottom:1px solid transparent;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:500}
.brand b{display:block;font-size:14px;font-weight:600;line-height:1.1}
.brand small{display:block;color:var(--body);font-size:12px;font-weight:400;margin-top:2px}
.logo{width:32px;height:32px;display:grid;place-items:center;font-size:22px}
nav{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:500}
.nav-link{padding:8px 10px;color:var(--ink)}
.shell{width:min(960px,calc(100% - 48px));margin:64px auto 88px}
.hero{width:min(720px,100%);margin:72px auto 0;text-align:center}
.wg-mark{width:88px;height:88px;margin:0 auto 20px;display:grid;place-items:center;font-size:58px;line-height:1}
h1,h2,h3{margin:0;color:var(--ink)}
h1{
  font-family:"SF Pro Rounded",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:36px;
  font-weight:500;
  line-height:1.11;
  letter-spacing:0;
}
h2{font-size:24px;font-weight:600;line-height:1.33;margin-top:32px;margin-bottom:12px}
h3{font-size:18px;font-weight:500;line-height:1.56}
.muted{color:var(--body)}
.hero>.muted{max-width:560px;margin:20px auto 0;font-size:16px}
.install-pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-top:24px;
  min-height:48px;
  padding:12px 20px;
  border-radius:var(--rounded-full);
  background:var(--surface);
  color:var(--ink);
  font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;
  font-size:16px;
}
.auth-card,.panel{
  background:var(--canvas);
  border:1px solid var(--hairline);
  border-radius:var(--rounded-lg);
  padding:32px;
  box-shadow:none;
}
.auth-card{width:min(430px,100%);margin:72px auto 0;text-align:center}
.auth-card h1{font-size:30px;line-height:1.2}
.auth-card .muted{margin:8px 0 24px}.mini{font-size:14px;margin-top:18px}.mini a{text-decoration:underline;color:var(--body)}
.panel{width:min(720px,100%);margin:0 auto}.panel.wide{width:100%}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}
label{display:block;text-align:left;font-size:14px;font-weight:500;color:var(--ink);margin:16px 0 8px}
input,select{
  width:100%;height:40px;border:1px solid var(--hairline);border-radius:var(--rounded-full);background:var(--canvas);color:var(--ink);padding:8px 16px;font:inherit;outline:none;
}
input:focus,select:focus{border-color:var(--ink);box-shadow:0 0 0 3px var(--focus)}
button,.btn,.icon-btn{
  appearance:none;border:0;display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:8px 20px;border-radius:var(--rounded-full);background:var(--ink);color:var(--on-dark);font-size:14px;font-weight:500;line-height:1;cursor:pointer;text-decoration:none;white-space:nowrap;
}
button:active,.btn:active,.icon-btn:active{background:var(--ink-deep)}
.btn.small{min-height:36px;padding:8px 18px}.btn.full{width:100%}.btn.ghost,.btn.gray{background:var(--canvas);color:var(--ink);border:1px solid var(--hairline-strong)}
.btn.ghost:active,.btn.gray:active{background:var(--surface)}
.split-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:24px}
form{margin:0}.create-row{display:grid;grid-template-columns:1fr auto;gap:10px;margin:24px 0}.actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.client-list{display:grid;gap:10px;margin-top:18px}.client{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid var(--hairline)}.client:last-child{border-bottom:0}
.client-main{display:flex;align-items:center;gap:12px;min-width:0}.client-main p{margin:2px 0 0}.status-dot{width:12px;height:12px;border-radius:var(--rounded-full);background:var(--ok);flex:0 0 auto}.icon-btn{background:var(--surface);color:var(--ink);border:1px solid var(--hairline);padding:8px 14px}.danger{background:var(--surface);border:1px solid var(--hairline);color:var(--ink)}.danger:active{background:#fee2e2}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;background:var(--surface);border-radius:6px;padding:2px 6px;color:var(--ink);font-size:.92em}
.alert{border:1px solid var(--hairline);border-radius:var(--rounded-lg);padding:12px 14px;margin:16px 0;text-align:left;color:var(--charcoal);background:var(--surface)}.alert.ok{border-color:#bbf7d0;background:#f0fdf4;color:#166534}.alert.err{border-color:#fecaca;background:#fef2f2;color:#991b1b}.alert.warn{border-color:#fde68a;background:#fffbeb;color:#92400e}
.empty{padding:32px 0;text-align:center;color:var(--body);border-bottom:1px solid var(--hairline)}
.table-wrap{overflow:auto;border:1px solid var(--hairline);border-radius:var(--rounded-lg)}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:14px 12px;border-bottom:1px solid var(--hairline);vertical-align:middle;white-space:nowrap}th{font-weight:500;color:var(--charcoal);background:var(--surface)}tr:last-child td{border-bottom:0}.pill{display:inline-flex;align-items:center;min-height:28px;padding:4px 12px;border-radius:var(--rounded-full);background:var(--surface);border:1px solid var(--hairline);font-size:12px;color:var(--charcoal)}
.footer{border-top:1px solid var(--hairline);padding:32px 24px;text-align:center;color:var(--body);font-size:12px}
@media (max-width:768px){.topbar{padding:0 16px}.brand small{display:none}nav{gap:4px}.nav-link{padding:8px 6px}.shell{width:min(100% - 32px,720px);margin:48px auto 64px}.hero{margin-top:48px}.wg-mark{width:72px;height:72px;font-size:48px}h1{font-size:28px;line-height:1.15}.auth-card,.panel{padding:24px}.split-actions,.create-row{grid-template-columns:1fr}.client{align-items:flex-start;flex-direction:column}.actions{width:100%}.actions .icon-btn,.actions form,.actions button{flex:1}.install-pill{width:100%;white-space:normal}.footer{padding:24px 16px}}