:root{
  --bg:#F3F6F2;--surface:#fff;--ink:#15302A;--muted:#5A736C;--line:#D8E2DC;
  --green:#0E5A4E;--deep:#093D35;--brass:#B7862B;--brass-soft:#F5EAD2;--mint:#E3EFE9;--danger:#A33B2B;--danger-soft:#F7E3DF;
  --head:'Tiro Bangla','Noto Serif Bengali',serif;
  --body:'Hind Siliguri','Noto Sans Bengali','SolaimanLipi',system-ui,sans-serif;
  box-sizing:border-box;
}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6}
a{color:var(--green)}
h1,h2,h3{font-family:var(--head);font-weight:400;line-height:1.3;margin:0 0 .5em}
h2{font-size:1.35rem}h3{font-size:1.12rem}
:focus-visible{outline:3px solid var(--brass);outline-offset:2px}
button,input,select,textarea{font:inherit;color:inherit}

/* layout */
.admin{display:flex;min-height:100vh}
.side{width:240px;flex:none;background:var(--deep);color:#DDE8E3;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}
.side-brand{display:flex;gap:10px;align-items:center;padding:18px 18px 14px;color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.1)}
.side-brand span{font-family:var(--head);font-size:1.1rem;line-height:1.2}
.side-brand small{display:block;font-family:var(--body);font-size:.78rem;color:#9DB8AF}
.side nav{display:flex;flex-direction:column;padding:10px 8px;gap:2px;flex:1}
.side nav a{color:#DDE8E3;text-decoration:none;padding:9px 12px;border-radius:7px;font-size:.96rem}
.side nav a:hover{background:rgba(255,255,255,.07)}
.side nav a.on{background:rgba(217,174,85,.18);color:#F3DDAA;font-weight:600}
.side-site{color:#E9C77E;padding:14px 20px;border-top:1px solid rgba(255,255,255,.1);font-size:.9rem}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:12px;padding:10px 22px;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;flex-wrap:wrap}
.side-toggle{display:none;background:none;border:1px solid var(--line);border-radius:7px;padding:4px 10px;font-size:1.2rem}
.top-search{flex:1;min-width:200px}
.top-search input{width:100%;max-width:420px;padding:8px 12px;border:1.5px solid var(--line);border-radius:8px;background:var(--bg)}
.top-branch select{padding:8px 10px;border:1.5px solid var(--brass);border-radius:8px;background:var(--brass-soft);font-weight:600}
.top-branch-name{background:var(--brass-soft);padding:6px 12px;border-radius:8px;font-weight:600}
.top-user{display:flex;align-items:center;gap:10px;margin-left:auto}
.top-user span{text-align:right;line-height:1.2;font-weight:600}
.top-user small{display:block;color:var(--muted);font-weight:400;font-size:.8rem}
.content{padding:24px 26px 60px;max-width:1300px;width:100%}
.page-title{font-size:1.7rem;margin-bottom:18px}
@media (max-width:900px){
  .side{position:fixed;left:0;top:0;bottom:0;z-index:50;transform:translateX(-100%);transition:transform .2s}
  .side.open{transform:none;box-shadow:0 0 40px rgba(0,0,0,.4)}
  .side-toggle{display:block}
  .content{padding:18px 14px 50px}
  .top-user span{display:none}
}

/* components */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:8px;padding:9px 16px;font-weight:600;text-decoration:none;cursor:pointer;font-size:.95rem;background:var(--green);color:#fff;white-space:nowrap}
.btn-brass{background:var(--brass);color:#1d1606}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-danger{background:var(--danger);color:#fff}
.btn-sm{padding:5px 10px;font-size:.86rem}
.link-danger{background:none;border:0;color:var(--danger);font-weight:600;cursor:pointer;padding:0;font-size:.9rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:20px}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.card-head h2,.card-head h3{margin:0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.grid2,.grid3{grid-template-columns:1fr}}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:22px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.stat small{display:block;color:var(--muted);font-size:.86rem}
.stat b{display:block;font-family:var(--head);font-weight:400;font-size:1.55rem;color:var(--green);line-height:1.3}
.stat.warn{background:var(--danger-soft);border-color:transparent}
.stat.warn b{color:var(--danger)}
.stat.gold{background:var(--brass-soft);border-color:transparent}
.stat.gold b{color:var(--ink)}

.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px 16px}
.form-grid .full{grid-column:1/-1}
label{display:block;font-size:.88rem;color:var(--muted);margin-bottom:4px;font-weight:500}
input[type=text],input[type=number],input[type=tel],input[type=date],input[type=password],input[type=file],input:not([type]),select,textarea{width:100%;padding:9px 11px;border:1.5px solid var(--line);border-radius:8px;background:var(--bg)}
input:focus,select:focus,textarea:focus{border-color:var(--green);outline:none}
textarea{min-height:80px;resize:vertical}
.help{font-size:.84rem;color:var(--muted);margin-top:3px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:end;margin-bottom:14px}
.filters > div{min-width:150px}

.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:.93rem}
th,td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#F7FAF8;color:var(--muted);font-weight:600;white-space:nowrap}
tr:last-child td{border-bottom:0}
td.num,th.num{text-align:right;white-space:nowrap}
tfoot td{font-weight:700;background:#F7FAF8}
.empty{padding:26px;text-align:center;color:var(--muted)}
.pill{display:inline-block;padding:1px 10px;border-radius:999px;font-size:.82rem;font-weight:600;background:var(--mint);color:var(--green);white-space:nowrap}
.pill.due{background:#EEF1F0;color:var(--muted)}
.pill.partial{background:var(--brass-soft);color:#7a5a17}
.pill.late,.pill.cancelled{background:var(--danger-soft);color:var(--danger)}
.pill.closed{background:#E4E9F2;color:#3c4f73}
.flash{padding:11px 16px;border-radius:8px;margin-bottom:16px;font-weight:500}
.flash-ok{background:var(--mint);color:var(--green)}
.flash-err{background:var(--danger-soft);color:var(--danger)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;margin:0}
.kv dt{color:var(--muted)}
.kv dd{margin:0;font-weight:600}
.progress{height:10px;background:var(--mint);border-radius:6px;overflow:hidden;margin:6px 0}
.progress span{display:block;height:100%;background:var(--green)}
.muted{color:var(--muted)}
details.add{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:20px}
details.add summary{cursor:pointer;padding:14px 20px;font-weight:600;color:var(--green);list-style:none}
details.add summary::-webkit-details-marker{display:none}
details.add summary::before{content:"+ "}
details.add[open] summary::before{content:"− "}
details.add .inner{padding:0 20px 20px}

/* login pages */
.auth{min-height:100vh;display:grid;place-items:center;padding:20px;background:var(--deep)}
.auth .box{background:var(--surface);border-radius:14px;padding:30px;width:100%;max-width:400px}
.auth h1{font-size:1.5rem}
.auth .field{margin-bottom:14px}

@media print{
  .side,.topbar,.no-print,.actions,details.add,.filters{display:none!important}
  .content{padding:0}
  body{background:#fff}
  .card,.tbl{border-color:#bbb}
}