:root{--bg:#f6f7f9;--card:#fff;--fg:#1b1f24;--muted:#5c6570;--accent:#2f6fed;--danger:#c62828;--ok:#2e7d32;--border:#d9dee5}
*{box-sizing:border-box}
body{margin:0;font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--fg)}
header.top{background:var(--card);border-bottom:1px solid var(--border);padding:.75rem 1rem;display:flex;gap:1rem;align-items:center;flex-wrap:wrap}
header.top .brand{font-weight:700;text-decoration:none;color:var(--fg)}
header.top nav a{margin-right:1rem;color:var(--accent);text-decoration:none}
main{max-width:860px;margin:0 auto;padding:1.5rem 1rem}
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:1.25rem;margin-bottom:1rem}
h1{font-size:1.5rem;margin:.2rem 0 1rem}h2{font-size:1.15rem;margin:1rem 0 .5rem}
label{display:block;font-weight:600;margin-top:.75rem}
input[type=text],input[type=password],input[type=number],textarea,select{width:100%;padding:.6rem .7rem;border:1px solid var(--border);border-radius:8px;font:inherit;margin-top:.25rem}
textarea{min-height:6rem}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.04em}
.kit{font-size:1.35rem;word-break:break-all}
button,.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:8px;padding:.6rem 1rem;font:inherit;cursor:pointer;text-decoration:none;margin-top:.75rem}
button.secondary,.btn.secondary{background:#e8ecf2;color:var(--fg)}
button.danger,.btn.danger{background:var(--danger)}
button:disabled{opacity:.5;cursor:not-allowed}
.muted{color:var(--muted)}.small{font-size:.9rem}
.error{color:var(--danger);font-weight:600}.ok{color:var(--ok);font-weight:600}
.hidden{display:none}
table{width:100%;border-collapse:collapse;font-size:.95rem}th,td{text-align:left;padding:.45rem .5rem;border-bottom:1px solid var(--border);vertical-align:top}
.badge{display:inline-block;padding:.1rem .5rem;border-radius:999px;font-size:.8rem;background:#e8ecf2}
.badge.open{background:#fff3cd}.badge.cooling{background:#e3f2fd}.badge.approved,.badge.done{background:#e8f5e9}.badge.rejected,.badge.cancelled{background:#fdecea}
.row{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center}
.checkbox{display:flex;gap:.5rem;align-items:flex-start;font-weight:400;margin-top:.75rem}
.checkbox input{margin-top:.35rem}
pre{white-space:pre-wrap;word-break:break-all;background:#f1f3f6;padding:.75rem;border-radius:8px}
.flash{padding:.75rem 1rem;border-radius:8px;margin-bottom:1rem}.flash.error{background:#fdecea}.flash.ok{background:#e8f5e9}