:root{
  --ink:#1c2733; --muted:#5d6b7a; --paper:#eef2f5; --panel:#ffffff; --line:#d3dbe2;
  --accent:#0d6a73; --accent-ink:#ffffff; --warn:#a8480a; --warn-bg:#fbeee3; --ok-bg:#e3f2ee; --err-bg:#fbe9e7; --err:#a1261b;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--ink:#e6edf3; --muted:#9aa9b8; --paper:#12181f; --panel:#1a232d; --line:#2c3947; --accent:#4cc3cc; --accent-ink:#0b1a1c; --warn:#f0a468; --warn-bg:#3a2a1b; --ok-bg:#16332f; --err-bg:#3b1f1c; --err:#ff9d93;}
}
*{box-sizing:border-box}
html{font-size:16px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);line-height:1.55}
a{color:var(--accent)}
.shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.nav{background:var(--panel);border-right:1px solid var(--line);padding:1.25rem 1rem;display:flex;flex-direction:column;gap:.25rem}
.brand{font-weight:700;font-size:1.05rem;margin-bottom:1rem;letter-spacing:.01em}
.nav a{display:block;padding:.5rem .65rem;border-radius:6px;text-decoration:none;color:var(--ink)}
.nav a:hover,.nav a[aria-current=page]{background:var(--paper)}
.nav .soon{color:var(--muted);padding:.5rem .65rem;font-size:.92rem}
.nav form{margin-top:auto}
main{padding:1.75rem clamp(1rem,4vw,2.5rem);max-width:60rem;width:100%}
h1{font-size:1.5rem;margin:0 0 .25rem}
h2{font-size:1.1rem;margin:1.75rem 0 .5rem}
.lede{color:var(--muted);margin:0 0 1.5rem;max-width:62ch}
.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:1rem 1.15rem;margin-bottom:1rem}
.row{display:flex;justify-content:space-between;gap:1rem;align-items:center;flex-wrap:wrap}
.meta{color:var(--muted);font-size:.92rem}
label{display:block;font-weight:600;margin:1rem 0 .25rem}
input[type=text],input[type=password],select,textarea{width:100%;padding:.55rem .65rem;border:1px solid var(--line);border-radius:6px;background:var(--paper);color:var(--ink);font:inherit}
textarea{min-height:5.5rem;resize:vertical}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.btn{display:inline-block;padding:.55rem 1rem;border-radius:6px;border:1px solid var(--accent);background:var(--accent);color:var(--accent-ink);font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn.secondary{background:transparent;color:var(--accent)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}
.field-head{display:flex;justify-content:space-between;align-items:end;gap:1rem}
.field-head select{width:auto}
.msg{padding:.7rem 1rem;border-radius:6px;margin-bottom:1rem}
.msg.ok{background:var(--ok-bg)} .msg.err{background:var(--err-bg);color:var(--err)}
.tag{display:inline-block;font-size:.85rem;padding:.05rem .5rem;border-radius:99px;border:1px solid var(--line)}
.tag.warn{background:var(--warn-bg);color:var(--warn);border-color:transparent}
table{border-collapse:collapse;width:100%;font-size:.93rem}
th,td{text-align:left;padding:.4rem .5rem;border-bottom:1px solid var(--line);vertical-align:top}
.tablewrap{overflow-x:auto}
.center{max-width:26rem;margin:8vh auto;padding:0 1rem}
@media (max-width:760px){
  .shell{grid-template-columns:1fr}
  .nav{flex-direction:row;flex-wrap:wrap;border-right:0;border-bottom:1px solid var(--line);align-items:center}
  .brand{width:100%;margin-bottom:.25rem}
  .nav form{margin:0 0 0 auto}
  .grid2{grid-template-columns:1fr}
}