:root{--fg:#1d2321;--muted:#5b6662;--accent:#2f6f5e;--bg:#fbfaf7;--line:#e4e1d8}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;color:var(--fg);background:var(--bg)}
main,header,footer{max-width:760px;margin:0 auto;padding:0 24px}
header{display:flex;justify-content:space-between;align-items:center;padding-top:28px;padding-bottom:12px}
header a.brand{font-weight:700;font-size:20px;color:var(--fg);text-decoration:none;letter-spacing:.2px}
header nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-size:15px;white-space:nowrap}
@media (max-width:520px){header{flex-wrap:wrap;gap:6px}header nav a{margin:0 14px 0 0}}
h1{font-size:34px;line-height:1.2;margin:40px 0 12px}h2{font-size:22px;margin:36px 0 8px}h3{font-size:17px;margin:24px 0 4px}
a{color:var(--accent)}p,li{color:#2c3431}.muted{color:var(--muted)}
.card{border:1px solid var(--line);border-radius:10px;padding:16px 18px;margin:12px 0;background:#fff}
.card h3{margin-top:0}
footer{border-top:1px solid var(--line);margin-top:56px;padding-top:16px;padding-bottom:40px;font-size:14px;color:var(--muted)}
footer a{color:var(--muted);margin-right:14px}
main.tool{max-width:900px}
.tc-opts{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px 16px;margin:20px 0}
.tc-opts label{display:flex;flex-direction:column;font-size:14px;color:var(--muted)}
input,select,button{font:inherit;color:var(--fg)}
.tc-opts input,.tc-opts select,.tc-table input{padding:6px 8px;border:1px solid var(--line);border-radius:6px;background:#fff;margin-top:3px}
.tc-scroll{overflow-x:auto}
.tc-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:10px}
.tc-table th,.tc-table td{padding:6px 8px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.tc-table thead th{font-size:13px;color:var(--muted);font-weight:600}
.tc-table input[type=number]{width:80px}.tc-table .num{font-variant-numeric:tabular-nums}
.ddate{display:block;color:var(--muted);font-weight:400}
.tc-table tfoot th,.tc-table tfoot td{border-bottom:0;font-weight:700}
.tc-result{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin:16px 0}
.tc-result div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px;display:flex;flex-direction:column}
.tc-result strong{font-size:24px;font-variant-numeric:tabular-nums}.tc-result small{color:var(--muted)}
.tc-actions button{padding:8px 14px;border:1px solid var(--accent);border-radius:8px;background:#fff;color:var(--accent);cursor:pointer;margin:0 6px 6px 0}
.tc-actions button:first-child{background:var(--accent);color:#fff}
.tc-cta{display:flex;gap:14px;align-items:center}
.tc-result div[hidden]{display:none}
.tc-table td[data-l]::before{display:none}
@media (max-width:640px){
.tc-table thead{display:none}.tc-table,.tc-table tbody,.tc-table tfoot{display:block}
.tc-table tr{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 64px;gap:2px 8px;padding:8px 10px;border-bottom:1px solid var(--line)}
.tc-table th,.tc-table td{border:0;padding:0;min-width:0}
.tc-table tbody th{grid-row:1;grid-column:1/2}.tc-table .hrs{grid-row:1;grid-column:2/4;text-align:right;font-weight:600}
.tc-table td.ot,.tc-table tfoot td:not([id]),.tc-table tfoot #tOT{display:none}
.tc-table td[data-l]::before{display:block;content:attr(data-l);font-size:12px;color:var(--muted)}
.tc-table input[type=time],.tc-table input[type=number]{width:100%;min-width:0;max-width:100%}
.dname,.ddate{display:inline}.ddate{margin-left:6px}
.tc-table tfoot tr{grid-template-columns:1fr auto}
.tc-table input::-webkit-calendar-picker-indicator{display:none}.tc-table input{padding:6px}
}
@media print{.tc-table input::-webkit-calendar-picker-indicator{display:none}header,footer,.tc-actions,.tc-cta,main.tool>h2,main.tool>h2~*:not(form),main.tool>p{display:none}.tc-table input{border:0;padding:0}body{background:#fff}}