/* ===========================================================
   SalesHub design system — component classes layered on top
   of Tailwind utilities. Brand colour is injected per business
   via the --brand / --on-brand CSS variables in the header.
   =========================================================== */
:root{
  --brand:#2563eb;
  --on-brand:#ffffff;
  --brand-soft:rgba(37,99,235,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:#f1f5f9;color:#0f172a;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:10px;border:2px solid #f1f5f9}

/* ---------- App shell ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:250px;flex-shrink:0;background:#0b1220;color:#94a3b8;
  display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;z-index:50;transition:transform .25s ease}
.brand{display:flex;align-items:center;gap:11px;padding:18px 16px;border-bottom:1px solid rgba(255,255,255,.07)}
.brand-logo{width:42px;height:42px;border-radius:11px;object-fit:cover;background:#fff}
.brand-mark{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand);color:var(--on-brand);font-weight:700;font-size:19px}
.brand-text strong{color:#fff;font-size:14.5px;display:block;line-height:1.2;
  white-space:nowrap;text-overflow:ellipsis;overflow:hidden;max-width:150px}
.brand-text small{color:#64748b;font-size:11.5px}
.nav-list{display:flex;flex-direction:column;padding:14px 12px;gap:3px;flex:1;overflow-y:auto}
.nav-group{font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;color:#475569;
  padding:14px 12px 6px;font-weight:700}
.nav-item{display:flex;align-items:center;gap:12px;padding:10px 13px;border-radius:11px;
  color:#cbd5e1;font-size:14px;font-weight:500;transition:.15s}
.nav-item i{font-size:18px;width:20px;text-align:center}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:var(--brand);color:var(--on-brand);box-shadow:0 6px 16px -6px var(--brand)}
.sidebar-foot{padding:14px;border-top:1px solid rgba(255,255,255,.07);display:flex;flex-direction:column;gap:7px}
.sidebar-foot a{font-size:13px;color:#64748b;display:flex;align-items:center;gap:9px;padding:5px 8px;border-radius:8px}
.sidebar-foot a:hover{color:#fff;background:rgba(255,255,255,.05)}
.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(2,6,23,.5);z-index:40;backdrop-filter:blur(1px)}
.main{flex:1;margin-left:250px;min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.85);backdrop-filter:blur(8px);border-bottom:1px solid #e2e8f0;padding:13px 22px}
.menu-btn{display:none;background:none;border:none;font-size:25px;color:#0f172a;cursor:pointer;line-height:1}
.topbar-title{font-size:19px;margin:0;font-weight:700;flex:1;letter-spacing:-.01em}
.topbar-user{display:flex;align-items:center;gap:8px;color:#475569;font-size:14px}
.topbar-user i{font-size:22px;color:var(--brand)}
.content{padding:24px 22px;max-width:1240px;width:100%}

/* ---------- Cards ---------- */
.card{background:#fff;border:1px solid #e7ebf0;border-radius:16px;
  box-shadow:0 1px 2px rgba(16,24,40,.04)}
.card-pad{padding:20px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;cursor:pointer;
  font-weight:600;font-size:14px;padding:9px 16px;border-radius:11px;border:1px solid transparent;
  transition:.15s;line-height:1.2;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-brand{background:var(--brand);color:var(--on-brand)}
.btn-brand:hover{filter:brightness(.93)}
.btn-ghost{background:#fff;border-color:#d8dee6;color:#334155}
.btn-ghost:hover{background:#f8fafc;border-color:#cbd5e1}
.btn-danger{background:#fff;border-color:#fecaca;color:#dc2626}
.btn-danger:hover{background:#fef2f2}
.btn-soft{background:var(--brand-soft);color:var(--brand)}
.btn-soft:hover{filter:brightness(.97)}
.btn-sm{padding:6px 11px;font-size:13px;border-radius:9px;gap:5px}
.btn-lg{padding:12px 20px;font-size:15.5px;border-radius:13px}
.btn-block{width:100%}
.btn-icon{padding:7px 9px}

/* ---------- Forms ---------- */
.label{display:block;font-size:13px;font-weight:600;color:#334155;margin-bottom:6px}
.label.req::after{content:" *";color:#ef4444}
.input,.select,.textarea{width:100%;padding:10px 13px;border:1px solid #d8dee6;border-radius:11px;
  font-size:14.5px;background:#fff;color:#0f172a;transition:.15s;font-family:inherit}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px var(--brand-soft)}
.input-sm{padding:7px 10px;border-radius:9px;font-size:13.5px}
.input.num{text-align:right;font-variant-numeric:tabular-nums}
select.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 11px center;padding-right:34px}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid #e7ebf0;border-radius:16px;
  box-shadow:0 1px 2px rgba(16,24,40,.04)}
table.tbl{width:100%;border-collapse:collapse;min-width:560px}
table.tbl th,table.tbl td{padding:13px 16px;text-align:left;border-bottom:1px solid #eef2f6;
  font-size:14px;white-space:nowrap}
table.tbl th{background:#f8fafc;color:#64748b;font-size:11.5px;text-transform:uppercase;
  letter-spacing:.04em;font-weight:700}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tbody tr:hover{background:#f8fafc}
.num{text-align:right;font-variant-numeric:tabular-nums}

/* ---------- Badges ---------- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:700;line-height:1}
.badge-paid,.badge-accepted,.badge-converted{background:#dcfce7;color:#15803d}
.badge-partial,.badge-sent{background:#fef9c3;color:#a16207}
.badge-unpaid,.badge-declined{background:#fee2e2;color:#b91c1c}
.badge-draft{background:#e2e8f0;color:#475569}
.badge-low{background:#fee2e2;color:#b91c1c}

/* ---------- Stats ---------- */
.stat{padding:18px 20px;border-radius:16px;background:#fff;border:1px solid #e7ebf0;
  box-shadow:0 1px 2px rgba(16,24,40,.04);position:relative;overflow:hidden}
.stat .label{color:#64748b;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;margin:0}
.stat .value{font-size:25px;font-weight:800;margin-top:7px;letter-spacing:-.02em}
.stat .sub{font-size:12.5px;color:#94a3b8;margin-top:3px}
.stat .ico{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);font-size:19px}

/* ---------- Empty state ---------- */
.empty{padding:48px 20px;text-align:center;color:#94a3b8}
.empty i{font-size:42px;display:block;margin-bottom:12px;opacity:.5}

/* ---------- Section header ---------- */
.section-head{display:flex;align-items:center;justify-content:space-between;margin:24px 0 13px;gap:12px;flex-wrap:wrap}
.section-head h2{font-size:17px;margin:0;font-weight:700;letter-spacing:-.01em}

/* ---------- Colour swatches ---------- */
.color-swatches{display:flex;gap:10px;flex-wrap:wrap}
.swatch{width:34px;height:34px;border-radius:10px;cursor:pointer;border:3px solid transparent;transition:.15s}
.swatch:hover{transform:scale(1.08)}
.swatch.sel{border-color:#0f172a;box-shadow:0 0 0 2px #fff inset}

/* ---------- Business picker ---------- */
.biz-card{background:#fff;border:1px solid #e7ebf0;border-radius:18px;overflow:hidden;cursor:pointer;
  transition:transform .14s,box-shadow .14s;box-shadow:0 1px 2px rgba(16,24,40,.04)}
.biz-card:hover{transform:translateY(-4px);box-shadow:0 16px 30px -12px rgba(16,24,40,.2)}
.biz-top{height:80px;display:flex;align-items:center;padding:0 20px;color:#fff}
.biz-init{width:46px;height:46px;border-radius:13px;background:rgba(255,255,255,.25);display:grid;place-items:center;font-weight:700;font-size:21px}
.biz-new{border:2px dashed #cbd5e1;display:grid;place-items:center;min-height:186px;color:#94a3b8;background:#fff;border-radius:18px;transition:.15s}
.biz-new:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}

/* ---------- Line-item editor (sales / quotations / credit notes) ---------- */
.line-items{display:flex;flex-direction:column;gap:10px}
.line-item{border:1px solid #e2e8f0;border-radius:14px;padding:12px;background:#fff}
.li-top{display:flex;gap:8px;align-items:flex-start}
.li-desc{flex:1;min-width:0}
.li-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:8px}
.li-grid label{display:block;font-size:11px;color:#64748b;font-weight:600;margin-bottom:3px}
.li-amount{padding:8px 10px;font-weight:700;text-align:right;font-variant-numeric:tabular-nums;
  background:#f1f5f9;border-radius:9px;min-height:36px;display:flex;align-items:center;justify-content:flex-end;overflow:hidden}
.li-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:600px){
  .li-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .li-grid.cols-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* ---------- Modal ---------- */
.modal-overlay{position:fixed;inset:0;background:rgba(2,6,23,.5);z-index:80;display:none;
  align-items:center;justify-content:center;padding:18px;backdrop-filter:blur(2px)}
.modal-overlay.open{display:flex}
.modal-box{background:#fff;border-radius:18px;width:100%;max-width:430px;box-shadow:0 24px 60px -12px rgba(2,6,23,.4);
  animation:pop .18s ease}
@keyframes pop{from{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}

/* ---------- Alerts ---------- */
.alert{padding:13px 16px;border-radius:13px;font-size:14px;display:flex;align-items:center;gap:10px;margin-bottom:18px;font-weight:500}
.alert-success{background:#dcfce7;color:#166534}
.alert-danger{background:#fee2e2;color:#991b1b}
.alert i{font-size:18px}

/* ---------- Responsive ---------- */
@media (max-width:880px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar.open ~ .sidebar-backdrop{display:block}
  .main{margin-left:0}
  .menu-btn{display:block}
  .content{padding:18px 15px}
}

/* ---------- Print (documents) ---------- */
@media print{
  .no-print{display:none !important}
  body{background:#fff}
  .doc-sheet{box-shadow:none !important;border:none !important;margin:0;max-width:100%}
}