:root{
  --navy:#1F2A44;--navy2:#2C3A5C;--gold:#B8945A;--bg:#F4F5F8;--card:#fff;--ink:#1B1F2A;--muted:#6B7280;--line:#E5E7EB;
  --green:#15803D;--red:#B91C1C;--amber:#B45309;--blue:#1D4ED8;--teal:#0F766E;
  --r:14px;--shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);
  font-family:"Noto Sans Lao","Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5;-webkit-text-size-adjust:100%}
a{color:var(--blue);text-decoration:none}
h1{font-size:1.35rem;margin:0 0 .15rem;line-height:1.3}
h2{font-size:1.15rem;margin:0 0 .5rem}
h3{font-size:1rem;margin:0 0 .75rem;color:var(--navy)}
.muted{color:var(--muted)} .small,small{font-size:.82rem} .pos{color:var(--green)} .neg{color:var(--red)}
.wrap{max-width:1240px;margin:0 auto;padding:1rem 1rem 6rem}

/* top bar */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:1rem;padding:.6rem 1rem;background:var(--navy);color:#fff;padding-top:max(.6rem,env(safe-area-inset-top))}
.brand{display:flex;align-items:center;gap:.5rem;color:#fff;font-weight:600;letter-spacing:.04em;white-space:nowrap}
.brand img{width:30px;height:30px}.brand b{color:var(--gold);font-weight:600}
.topnav{display:none;gap:.25rem;flex:1}
.topnav a{color:#cfd5e3;padding:.45rem .8rem;border-radius:10px}
.topnav a.active,.topnav a:hover{background:var(--navy2);color:#fff}
.topright{margin-left:auto;display:flex;align-items:center;gap:.6rem}
.seg{display:flex;background:var(--navy2);border-radius:10px;padding:2px}
.seg a{color:#cfd5e3;padding:.25rem .6rem;border-radius:8px;font-size:.8rem;font-family:Inter,sans-serif}
.seg a.on{background:var(--gold);color:#fff}
.who{display:flex;align-items:center;gap:.4rem;color:#fff}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--gold);display:grid;place-items:center;font-weight:600}
.hide-sm{display:none}

/* bottom nav (mobile) */
.bottomnav{position:fixed;bottom:0;left:0;right:0;z-index:20;display:flex;background:#fff;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
.bottomnav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:.45rem 0 .5rem;color:var(--muted);font-size:.72rem}
.bottomnav svg{width:22px;height:22px;fill:currentColor}
.bottomnav a.active{color:var(--navy);font-weight:600}
@media(min-width:900px){.topnav{display:flex}.bottomnav{display:none}.hide-sm{display:inline}.wrap{padding-bottom:2rem}}

/* layout */
.pagehead{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin:.25rem 0 1rem;flex-wrap:wrap}
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:1rem;margin-bottom:1rem}
.grid2,.grid3{display:grid;gap:1rem;grid-template-columns:1fr}
@media(min-width:720px){.grid2{grid-template-columns:1fr 1fr}.grid3{grid-template-columns:1fr 1fr 1fr}}
section.grid2>.card{margin-bottom:0}section.grid2{margin-bottom:1rem}

/* forms */
.form label,label{display:block;font-size:.85rem;color:#374151;margin-bottom:.75rem}
input,select,textarea{display:block;width:100%;margin-top:.25rem;padding:.65rem .75rem;border:1px solid #D1D5DB;border-radius:10px;font:inherit;font-size:16px;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:2px solid var(--gold);outline-offset:0;border-color:var(--gold)}
input[readonly],input:disabled{background:#F3F4F6;color:var(--muted)}
label.check{display:flex;align-items:center;gap:.5rem}label.check input{width:auto;margin:0}
label.inline,form.inline{display:inline-flex;align-items:center;gap:.5rem}form.inline input,form.inline select,label.inline select{width:auto;margin:0}
.row-inline{display:flex!important;align-items:center;justify-content:space-between;gap:1rem}.row-inline input{max-width:120px;margin:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.35rem;padding:.6rem 1rem;border-radius:10px;border:1px solid #D1D5DB;background:#fff;color:var(--ink);font:inherit;font-weight:500;cursor:pointer;white-space:nowrap;min-height:42px}
.btn.primary{background:var(--navy);border-color:var(--navy);color:#fff}.btn.primary:hover{background:var(--navy2)}
.btn.danger{background:var(--red);border-color:var(--red);color:#fff}
.btn.ghost{background:transparent}.btn.ghost.danger{color:var(--red);border-color:#FCA5A5;background:#fff}
.btn.block{width:100%}
.actions{display:flex;gap:.5rem;flex-wrap:wrap;justify-content:flex-end;align-items:flex-end}
.filters{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1rem}
.filters>*{width:auto;margin:0;flex:1 1 140px}.filters .btn{flex:0 0 auto}
.flash{padding:.7rem .9rem;border-radius:10px;margin-bottom:.75rem;background:#ECFDF5;color:#065F46;border:1px solid #A7F3D0}
.flash.err{background:#FEF2F2;color:#991B1B;border-color:#FECACA}.flash.warn{background:#FFFBEB;color:#92400E;border-color:#FDE68A}
.flash a{font-weight:600}

/* chips & badges */
.chips{display:flex;gap:.4rem;overflow-x:auto;padding-bottom:.25rem;margin-bottom:.75rem;scrollbar-width:none}
.chip{flex:0 0 auto;padding:.4rem .8rem;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink);font-size:.85rem}
.chip.on{background:var(--navy);border-color:var(--navy);color:#fff}.chip b{margin-left:.2rem;color:var(--gold)}
.badge{display:inline-block;padding:.05rem .5rem;border-radius:999px;font-size:.72rem;font-weight:600;vertical-align:middle}
.b-grey{background:#F3F4F6;color:#4B5563}.b-amber{background:#FEF3C7;color:#92400E}.b-blue{background:#DBEAFE;color:#1E40AF}
.b-red{background:#FEE2E2;color:#991B1B}.b-teal{background:#CCFBF1;color:#115E59}.b-green{background:#DCFCE7;color:#166534}

/* lists */
.list{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden;margin-bottom:1rem}
.item{display:flex;gap:.75rem;align-items:center;padding:.8rem 1rem;border-bottom:1px solid var(--line);color:inherit}
.item:last-child{border-bottom:0}.item:hover{background:#FAFAFB}
.item-main{flex:1;min-width:0;color:inherit}.item-title{font-weight:500}.item-sub{font-size:.82rem;color:#4B5563;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.item-amt{font-weight:600;text-align:right;white-space:nowrap;font-family:Inter,sans-serif}.item-amt small{display:block;color:var(--muted);font-weight:400}
.pick{width:20px;height:20px;margin:0;flex:0 0 auto}
.empty{padding:2rem;text-align:center;color:var(--muted)}
.stickybar{position:sticky;bottom:70px;display:flex;justify-content:center;padding:.5rem}
@media(min-width:900px){.stickybar{bottom:1rem}}
.line{display:flex;justify-content:space-between;gap:1rem;padding:.45rem 0;border-bottom:1px dashed var(--line)}
.line:last-child{border-bottom:0}

/* KPIs */
.kpis{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:1rem}
@media(min-width:900px){.kpis{grid-template-columns:repeat(4,1fr)}}
.kpi{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:.85rem 1rem;border-top:3px solid var(--gold)}
.kpis.small .kpi{border-top-color:var(--navy2);padding:.6rem 1rem}
.kpi span{display:block;font-size:.8rem;color:var(--muted)}.kpi b{display:block;font-size:1.35rem;font-family:Inter,"Noto Sans Lao",sans-serif;margin:.1rem 0}
.kpis.small .kpi b{font-size:1.1rem}.kpi small{color:var(--muted)}.kpi em{font-style:normal;font-weight:600}
.ctl{display:grid;grid-template-columns:repeat(2,1fr);gap:.6rem}
@media(min-width:720px){.ctl{grid-template-columns:repeat(4,1fr)}}@media(min-width:1100px){.ctl{grid-template-columns:repeat(7,1fr)}}
.ctl-i{display:block;padding:.7rem;border-radius:12px;background:#F9FAFB;border:1px solid var(--line);color:var(--ink)}
.ctl-i b{display:block;font-size:1.2rem;font-family:Inter,sans-serif}.ctl-i span{font-size:.78rem;color:#4B5563;line-height:1.3;display:block}
.ctl-i.bad{background:#FEF2F2;border-color:#FECACA}.ctl-i.bad b{color:var(--red)}
.ctl-i.warn{background:#FFFBEB;border-color:#FDE68A}.ctl-i.warn b{color:var(--amber)}
.ctl-i.good{background:#F0FDF4;border-color:#BBF7D0}.ctl-i.good b{color:var(--green)}
.chartbox{position:relative;height:260px}
.bar{display:grid;grid-template-columns:minmax(60px,150px) 1fr auto;gap:.6rem;align-items:center;padding:.3rem 0;font-size:.85rem}
.bar-l{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar-t{position:relative;height:12px;background:#F1F2F5;border-radius:6px}
.bar-t i{position:absolute;left:0;top:0;bottom:0;background:var(--navy2);border-radius:6px}.bar-t i.over{background:var(--red)}
.bar-t em{position:absolute;top:-4px;bottom:-4px;width:2px;background:var(--gold)}
.bar-v{text-align:right;white-space:nowrap;font-family:Inter,sans-serif}

/* tables */
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tbl{width:100%;border-collapse:collapse;font-size:.88rem}
.tbl th{text-align:left;font-weight:600;color:#374151;background:#F9FAFB;padding:.55rem .6rem;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:.5rem .6rem;border-bottom:1px solid var(--line);vertical-align:top}
.tbl .r{text-align:right;font-family:Inter,"Noto Sans Lao",sans-serif;white-space:nowrap}
.tbl tfoot td{font-weight:600;background:#F9FAFB}
.tbl tr.hl td{background:#FFF8EC}.tbl tr.locked td{background:#F9FAFB}
.tbl.small{font-size:.8rem}.tbl td.wrap{white-space:normal;word-break:break-word;max-width:420px}
.tbl.edit input{min-width:110px;margin:0;padding:.45rem .5rem;text-align:right;font-size:14px}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:.6rem 1rem;margin-bottom:1rem}
@media(min-width:720px){.kv{grid-template-columns:repeat(3,1fr)}}
.kv span{display:block;font-size:.78rem;color:var(--muted)}
.sign{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.25rem;text-align:center;font-size:.85rem}
.sign span{display:block;color:var(--muted)}.sign small{display:block;color:var(--muted)}
.print-head{display:none}
details summary{cursor:pointer;font-weight:600;color:var(--navy)}

/* PO items editor */
.items{display:flex;flex-direction:column;gap:.5rem;margin-bottom:.5rem}
.itemrow{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:.4rem;align-items:center;padding:.6rem;border:1px solid var(--line);border-radius:12px;background:#FAFAFB}
.itemrow input{margin:0}.itemrow .i-desc{grid-column:1/-1}
.i-amt{text-align:right;font-weight:600;font-family:Inter,sans-serif;grid-column:1/4}
.x{border:0;background:#FEE2E2;color:var(--red);border-radius:8px;width:36px;height:36px;font-size:1.2rem;cursor:pointer}
@media(min-width:720px){.itemrow{grid-template-columns:3fr 1fr 1fr 1.4fr 1.2fr auto}.itemrow .i-desc{grid-column:auto}.i-amt{grid-column:auto}}
.total{text-align:right;font-size:1.1rem;margin:.5rem 0 1rem}

/* tiles */
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:1rem}
@media(min-width:720px){.tiles{grid-template-columns:repeat(4,1fr)}}
.tile{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:1rem;color:var(--ink);border-left:4px solid var(--gold)}
.tile b{display:block}.tile span{font-size:.8rem;color:var(--muted)}

/* login */
body.guest{background:linear-gradient(160deg,var(--navy) 0%,#2B3A60 60%,#3A4A73 100%);min-height:100vh}
.login{min-height:90vh;display:grid;place-items:center}
.login-card{background:#fff;border-radius:18px;padding:2rem 1.5rem;width:100%;max-width:380px;box-shadow:0 20px 50px rgba(0,0,0,.25);text-align:center}
.login-card form{text-align:left;margin-top:1rem}.login-logo{width:64px;height:64px}

@media print{
  .topbar,.bottomnav,.noprint,.flash{display:none!important}
  body{background:#fff}.wrap{padding:0;max-width:none}.card{box-shadow:none;padding:0}
  .print-head{display:flex;justify-content:space-between;border-bottom:2px solid #000;padding-bottom:.5rem;margin-bottom:1rem}
}