:root{
  --bg:#eef2f7; --card:#ffffff; --ink:#0f172a; --muted:#64748b; --line:#e2e8f0;
  --primary:#2563eb; --primary-d:#1d4ed8; --accent:#b45309; --accent-bg:#fffbeb;
  --ok:#15803d; --ok-bg:#dcfce7; --warn:#b45309; --warn-bg:#fef3c7;
  --bad:#b91c1c; --bad-bg:#fee2e2; --nav:#0f172a; --nav-ink:#cbd5e1;
  --radius:14px; --shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.05);
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14.5px;line-height:1.5;-webkit-text-size-adjust:100%}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.mono{font-family:'Consolas',ui-monospace,monospace;font-size:13px}
.bad{color:var(--bad)} .num{text-align:right}

/* ---------- layout ---------- */
.app{display:flex;min-height:100vh}
.sidebar{width:236px;flex:0 0 236px;background:var(--nav);color:var(--nav-ink);
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:10px;padding:18px 18px 12px;color:#fff;font-size:16px}
.logo{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;font-weight:800;font-size:14px;letter-spacing:.5px}
.sidebar nav{display:flex;flex-direction:column;padding:6px 10px;gap:2px;overflow-y:auto;flex:1}
.sidebar nav a{display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:9px;
  color:var(--nav-ink);font-weight:500}
.sidebar nav a:hover{background:rgba(255,255,255,.06);text-decoration:none;color:#fff}
.sidebar nav a.on{background:var(--primary);color:#fff}
.sidebar nav a i{font-style:normal;width:18px;text-align:center;opacity:.9}
.navsep{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#64748b;padding:14px 14px 5px}
.sidefoot{border-top:1px solid rgba(255,255,255,.08);padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.sidefoot .who{display:flex;flex-direction:column;color:#fff;line-height:1.3}
.sidefoot .who span{font-size:12px;color:var(--muted)}
.sidefoot .mini{font-size:12.5px;color:var(--nav-ink)}
.logout{background:rgba(255,255,255,.08);border:0;color:#fff;padding:8px;border-radius:8px;cursor:pointer;font-weight:600}
.logout:hover{background:rgba(255,255,255,.16)}

main{flex:1;min-width:0;display:flex;flex-direction:column;padding:0 26px 80px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0 14px;position:sticky;top:0;background:linear-gradient(var(--bg),var(--bg) 70%,transparent);z-index:5}
.topbar h1{font-size:21px;font-weight:700}
.top-actions{display:flex;gap:10px;align-items:center}
.content{display:flex;flex-direction:column;gap:18px}

/* ---------- cards ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:18px}
.card.narrow{max-width:560px}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.card-head h3{font-size:15px}
h3.sub{font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:12px}

/* ---------- KPI ---------- */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:16px 18px;display:flex;flex-direction:column;gap:4px;position:relative;overflow:hidden}
.kpi::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--primary)}
.kpi.accent::before{background:var(--accent)}
.kpi.warn::before{background:var(--bad)}
.kpi-label{font-size:12.5px;color:var(--muted);font-weight:600}
.kpi-val{font-size:23px;font-weight:800;letter-spacing:-.5px}
.kpi.accent{background:var(--accent-bg)}
.kpi-sub{font-size:12px;color:var(--muted)}

/* ---------- alerts ---------- */
.alerts{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.alert-card h3{font-size:14px;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.pill{background:var(--bad-bg);color:var(--bad);border-radius:20px;padding:1px 9px;font-size:12px;font-weight:700}
.alist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:7px;max-height:230px;overflow:auto}
.alist li{display:flex;flex-wrap:wrap;gap:6px;align-items:baseline;border-bottom:1px dashed var(--line);padding-bottom:6px}
.alist .r{margin-left:auto;font-size:12.5px;color:var(--muted)}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;margin:0 -4px}
table.data{width:100%;border-collapse:collapse;font-size:13.5px}
table.data th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;
  color:var(--muted);padding:8px 10px;border-bottom:2px solid var(--line);white-space:nowrap}
table.data td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
table.data tbody tr:hover{background:#f8fafc}
table.data tr[onclick]{cursor:pointer}
table.data tfoot td{border-top:2px solid var(--line);border-bottom:0}
tr.low{background:#fff7ed}
tr.voided{opacity:.5;text-decoration:line-through}
tr.voided form,tr.voided{text-decoration:none}
.tag{display:inline-block;background:#eef2ff;color:#4338ca;border-radius:6px;padding:1px 7px;font-size:11px;font-weight:600}
.badge{display:inline-block;border-radius:20px;padding:2px 10px;font-size:11.5px;font-weight:700;background:#f1f5f9;color:var(--muted)}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.warn{background:var(--warn-bg);color:var(--warn)}
.badge.bad{background:var(--bad-bg);color:var(--bad)}
.empty{text-align:center;color:var(--muted);padding:26px}

/* ---------- forms ---------- */
label{display:flex;flex-direction:column;gap:5px;font-size:13px;font-weight:600;color:#334155}
input,select,textarea{font:inherit;padding:9px 11px;border:1px solid #cbd5e1;border-radius:9px;
  background:#fff;color:var(--ink);width:100%;font-weight:400}
input:focus,select:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--primary)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.selfend{display:flex;align-items:flex-end}
form.card>label,.card>form>label,.narrow label{margin-bottom:13px}
.mt{margin-top:13px}
.sub{margin-top:4px}
.formfoot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;flex-wrap:wrap}
.grandtotal{font-size:15px}.grandtotal b{font-size:20px}
textarea{resize:vertical}
.check{flex-direction:row;align-items:flex-start;gap:11px;cursor:pointer}
.check input{width:auto;margin-top:3px}
.filter{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;margin-bottom:14px}
.filter label{font-size:12px}
.filter .spacer{flex:1}
.month-pick input{padding:7px 10px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #cbd5e1;
  color:var(--ink);padding:9px 15px;border-radius:9px;font-weight:600;cursor:pointer;font-size:13.5px}
.btn:hover{background:#f8fafc;text-decoration:none}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-d)}
.btn.danger{background:#fff;border-color:#fecaca;color:var(--bad)}
.btn.danger:hover{background:var(--bad-bg)}
.btn.small{padding:7px 12px;font-size:13px}
.btn.block{width:100%;justify-content:center}
.iconbtn{background:transparent;border:1px solid transparent;color:var(--muted);cursor:pointer;
  padding:4px 7px;border-radius:7px;font-size:14px}
.iconbtn:hover{background:#f1f5f9;color:var(--ink)}
.rowact{display:flex;gap:4px;white-space:nowrap}
.btnrow{display:flex;gap:10px;flex-wrap:wrap;margin-top:4px}

/* ---------- detail ---------- */
.detail-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:18px;align-items:start}
dl.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0 0 14px}
dl.kv dt{color:var(--muted);font-size:13px}
dl.kv dd{margin:0;font-weight:600}
.payform .grid3{grid-template-columns:1fr 1fr 1fr}

/* ---------- master ---------- */
.master-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}
.inline-add{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.inline-add input,.inline-add select{flex:1;min-width:120px;width:auto}
.mlist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.mlist li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 4px;border-bottom:1px solid var(--line)}
.mlist li.off{opacity:.45}
.editrow{background:#f8fafc}
.editrow form{padding:6px 0}

/* ---------- flashes ---------- */
.flashes{display:flex;flex-direction:column;gap:8px;margin-bottom:4px}
.flash{padding:11px 15px;border-radius:10px;font-size:13.5px;font-weight:500;border:1px solid}
.flash.ok{background:var(--ok-bg);border-color:#bbf7d0;color:var(--ok)}
.flash.error{background:var(--bad-bg);border-color:#fecaca;color:var(--bad)}
.flash.warn{background:var(--warn-bg);border-color:#fde68a;color:var(--warn)}

/* ---------- auth ---------- */
.auth-wrap{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:24px;background:radial-gradient(1200px 600px at 50% -10%,#dbeafe,transparent),var(--bg)}
.auth-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);
  padding:30px;width:100%;max-width:380px;text-align:center}
.auth-brand .logo{width:48px;height:48px;font-size:18px;margin:0 auto 12px}
.auth-card h2{font-size:20px}
.auth-card form{margin-top:18px;text-align:left;display:flex;flex-direction:column;gap:13px}
.auth-foot{color:var(--muted);font-size:12.5px}

/* ---------- bottom bar (mobile) ---------- */
.bottombar{display:none}

@media(max-width:860px){
  .sidebar{display:none}
  main{padding:0 14px 84px}
  .topbar{padding:14px 0 10px}
  .detail-grid,.master-grid,.alerts,.grid3,.payform .grid3{grid-template-columns:1fr}
  .bottombar{display:flex;position:fixed;left:0;right:0;bottom:0;background:#fff;border-top:1px solid var(--line);
    z-index:40;padding:6px 4px env(safe-area-inset-bottom)}
  .bottombar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px;
    color:var(--muted);font-size:11px;font-weight:600}
  .bottombar a i{font-style:normal;font-size:18px}
  .bottombar a.on{color:var(--primary)}
  .kpi-val{font-size:20px}
}