:root{
  --brand:#0089cf; --navy:#0b3a5b; --navy2:#124d76; --accent:#ff7a1a; --bg:#eef4f8; --card:#fff;
  --text:#14283a; --muted:#6b7f90; --line:#dbe5ec; --ok:#12a150; --warn:#e0a100; --bad:#d93a3a; --r:14px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.45}
a{color:var(--brand);text-decoration:none}
img{max-width:100%}
h1,h2,h3{margin:0 0 .6em;line-height:1.2}
.page-title{font-size:1.6rem;margin:0 0 16px}
.muted{color:var(--muted)} small{font-size:.82rem}
.right{text-align:right} .center{text-align:center} .nowrap{white-space:nowrap}

/* layout */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:12px;background:var(--navy);color:#fff;padding:8px 14px;padding-top:calc(8px + env(safe-area-inset-top))}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1.05rem;flex:1}
.brand img{width:36px;height:36px;border-radius:8px;background:#fff;object-fit:contain}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:1.7rem;min-width:44px;min-height:44px;cursor:pointer}
.shell{display:flex;min-height:calc(100vh - 54px)}
.sidebar{width:230px;flex:0 0 230px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between;position:sticky;top:54px;height:calc(100vh - 54px);overflow:auto}
.sidebar nav{padding:12px}
.sidebar nav a{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:12px;color:var(--text);font-weight:600;margin-bottom:4px;min-height:48px}
.sidebar nav a i{font-style:normal;width:22px;text-align:center;color:var(--brand)}
.sidebar nav a.active,.sidebar nav a:hover{background:#e6f3fb;color:var(--navy)}
.side-user{padding:14px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px}
.main{flex:1;min-width:0;padding:20px;padding-bottom:90px}
.guest{max-width:420px;margin:6vh auto;padding:20px}
.scrim{display:none}

/* cards, grid */
.card{background:var(--card);border-radius:var(--r);padding:18px;box-shadow:0 1px 3px rgba(11,58,91,.08);margin-bottom:16px}
.card h2{font-size:1.15rem}
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:repeat(3,1fr)} .g4{grid-template-columns:repeat(4,1fr)}
.stat{background:var(--card);border-radius:var(--r);padding:16px;box-shadow:0 1px 3px rgba(11,58,91,.08);border-left:5px solid var(--brand)}
.stat .l{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.stat .v{font-size:1.5rem;font-weight:800;margin-top:2px}
.stat .s{font-size:.82rem;color:var(--muted)}
.stat.ok{border-color:var(--ok)} .stat.warn{border-color:var(--warn)} .stat.bad{border-color:var(--bad)} .stat.acc{border-color:var(--accent)}
.row-between{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.actions{display:flex;gap:8px;flex-wrap:wrap}

/* buttons & forms */
.btn,button.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:46px;padding:10px 18px;border-radius:12px;border:0;background:var(--brand);color:#fff;font-weight:700;font-size:1rem;cursor:pointer;font-family:inherit}
.btn:hover{filter:brightness(1.08)}
.btn.small{min-height:38px;padding:6px 12px;font-size:.9rem;border-radius:10px}
.btn.accent{background:var(--accent)} .btn.ok{background:var(--ok)} .btn.danger{background:var(--bad)}
.btn.ghost{background:#fff;color:var(--navy);border:1px solid var(--line)}
.btn.block{width:100%}
.btn[disabled]{opacity:.5;pointer-events:none}
label{display:block;font-weight:600;font-size:.9rem;margin-bottom:5px}
input[type=text],input[type=password],input[type=email],input[type=tel],input[type=number],input[type=date],input[type=time],input[type=month],select,textarea{
  width:100%;min-height:48px;padding:10px 12px;border:1px solid #c5d3dd;border-radius:12px;font-size:1rem;background:#fff;color:var(--text);font-family:inherit}
textarea{min-height:90px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);border-color:var(--brand)}
.field{margin-bottom:14px}
.fgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 16px}
.fgrid .full{grid-column:1/-1}
.check{display:flex;align-items:center;gap:10px;font-weight:600;min-height:44px;margin-bottom:6px}
.check input{width:24px;height:24px;flex:0 0 24px}
.hint{font-size:.82rem;color:var(--muted);margin-top:4px}
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;margin-bottom:14px}
.filters>div{flex:1 1 150px}

/* alerts, badges */
.alert{padding:12px 16px;border-radius:12px;margin-bottom:14px;font-weight:600}
.a-ok{background:#dff6e8;color:#0b6b36}.a-err{background:#fde3e3;color:#9b1c1c}.a-warn{background:#fff3cd;color:#7a5a00}
.badge{display:inline-block;padding:3px 10px;border-radius:99px;font-size:.78rem;font-weight:700}
.b-paid{background:#dff6e8;color:#0b6b36}.b-partial{background:#fff3cd;color:#7a5a00}.b-unpaid{background:#fde3e3;color:#9b1c1c}.b-cancelled{background:#e5e8eb;color:#555}
.b-admin{background:#e6f0ff;color:#1d4ed8}.b-staff{background:#eef2f5;color:#445}.b-off{background:#e5e8eb;color:#777}

/* tables */
.tbl{width:100%;border-collapse:collapse}
.tbl th{text-align:left;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);padding:10px 8px;border-bottom:2px solid var(--line)}
.tbl td{padding:12px 8px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl tr:hover td{background:#f7fbfe}
.tbl tfoot td{font-weight:800;border-top:2px solid var(--line)}
.scroll-x{overflow-x:auto}
.pager{display:flex;gap:12px;align-items:center;justify-content:center;margin-top:14px}

/* invoice form */
.items .item{border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:10px;background:#fafcfe;display:grid;grid-template-columns:2.2fr 1.2fr .7fr 1fr auto;gap:10px;align-items:end}
.items .item .lt{font-weight:800;text-align:right;min-height:48px;display:flex;align-items:center;justify-content:flex-end}
.totals{max-width:380px;margin-left:auto}
.totals .tr{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px dashed var(--line)}
.totals .tr.grand{font-size:1.3rem;font-weight:800;border-bottom:0;color:var(--navy)}
.sig-box{border:2px dashed #9fb6c6;border-radius:14px;background:#fff;touch-action:none;width:100%;height:260px;display:block}
.sig-img{max-height:110px;border-bottom:1px solid #999}
.kv{display:grid;grid-template-columns:140px 1fr;gap:6px 12px}
.kv dt{color:var(--muted);font-weight:600}.kv dd{margin:0;font-weight:600}
.chart{width:100%;height:auto}
.chart .b1{fill:var(--brand)}.chart .b2{fill:var(--accent)}.chart .ax{font-size:11px;fill:var(--muted)}.chart .cl1{font-size:12px;fill:var(--brand);font-weight:700}.chart .cl2{font-size:12px;fill:var(--accent);font-weight:700}
.bar-row{display:flex;align-items:center;gap:10px;margin:8px 0}
.bar-row .n{flex:0 0 38%;font-size:.9rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar-row .b{flex:1;background:#e8f0f6;border-radius:8px;height:18px;overflow:hidden}
.bar-row .b i{display:block;height:100%;background:var(--brand);border-radius:8px}
.bar-row .a{flex:0 0 auto;font-weight:700;font-size:.9rem}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.tabs a{padding:10px 18px;border-radius:99px;background:#fff;border:1px solid var(--line);font-weight:700;color:var(--navy);min-height:44px;display:flex;align-items:center}
.tabs a.on{background:var(--navy);color:#fff;border-color:var(--navy)}

/* tablet & mobile */
@media (max-width:1024px){
  .g4{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:repeat(2,1fr)}
  .menu-btn{display:block}
  .sidebar{position:fixed;left:0;top:54px;bottom:0;height:auto;z-index:40;transform:translateX(-105%);transition:transform .2s;box-shadow:4px 0 20px rgba(0,0,0,.2)}
  .sidebar.open{transform:none}
  .scrim.show{display:block;position:fixed;inset:54px 0 0 0;background:rgba(0,0,0,.35);z-index:35}
  .main{padding:16px}
}
@media (max-width:760px){
  .g2,.g3,.g4,.fgrid{grid-template-columns:1fr}
  .stat .v{font-size:1.3rem}
  .brand span{font-size:.95rem}
  .top-new{display:none}
  .items .item{grid-template-columns:1fr 1fr}
  .items .item .s-svc{grid-column:1/-1}
  .items .item .lt{grid-column:1/2;justify-content:flex-start}
  .kv{grid-template-columns:110px 1fr}
  /* table -> cards */
  .tbl.cards thead{display:none}
  .tbl.cards,.tbl.cards tbody,.tbl.cards tr,.tbl.cards td{display:block;width:100%}
  .tbl.cards tr{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:8px 12px}
  .tbl.cards td{border:0;padding:6px 0;display:flex;justify-content:space-between;gap:12px;text-align:right}
  .tbl.cards td::before{content:attr(data-label);font-weight:700;color:var(--muted);font-size:.78rem;text-transform:uppercase;text-align:left}
  .tbl.cards tfoot td{display:flex}
  .tbl.cards tr:hover td{background:none}
}
@media print{
  .topbar,.sidebar,.scrim,.no-print,.actions,.pager,.tabs,.filters{display:none!important}
  body{background:#fff}.main{padding:0}.card{box-shadow:none;border:0;padding:0}
  .stat{box-shadow:none;border:1px solid #ccc}
}