/* QuickBooks Online–inspired theme (Canada Paywall billing) */
:root {
  --qb-green: #2ca01c;
  --qb-green-dark: #108000;
  --qb-green-hover: #248512;
  --qb-nav-bg: #393a3d;
  --qb-nav-hover: #4a4b4e;
  --qb-nav-active: #2ca01c;
  --qb-page-bg: #eceef1;
  --qb-card: #ffffff;
  --qb-border: #d4d7dc;
  --qb-text: #393a3d;
  --qb-muted: #6b6c72;
  --qb-link: #0077c5;
  --qb-danger: #d52b1e;
  --qb-warn: #ff8000;
  --qb-font: "Avenir Next for INTUIT", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; font-family: var(--qb-font); color: var(--qb-text); background: var(--qb-page-bg); }

.hidden { display: none !important; }

/* Login */
.qb-login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #2ca01c 0%, #248512 120px, var(--qb-page-bg) 120px);
}
.qb-login-card {
  width: min(400px, 92vw);
  background: var(--qb-card);
  border: 1px solid var(--qb-border);
  border-radius: 8px;
  padding: 2rem 2rem 1.75rem;
  box-shadow: 0 4px 24px rgba(0,0,0,.12);
}
.qb-login-card h1 { margin: 0 0 0.25rem; font-size: 1.5rem; font-weight: 600; color: var(--qb-green-dark); }
.qb-login-card .sub { margin: 0 0 1.5rem; font-size: 0.875rem; color: var(--qb-muted); }
.qb-field { margin-bottom: 1rem; }
.qb-field label { display: block; font-size: 0.8125rem; font-weight: 600; margin-bottom: 0.35rem; color: var(--qb-text); }
.qb-field input, .qb-field select, .qb-field textarea {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--qb-border);
  border-radius: 4px;
  font-size: 0.9375rem;
  background: #fff;
  color: var(--qb-text);
}
.qb-field input:focus, .qb-field select:focus, .qb-field textarea:focus {
  outline: none;
  border-color: var(--qb-link);
  box-shadow: 0 0 0 2px rgba(0,119,197,.2);
}

/* Shell */
.qb-shell { display: flex; min-height: 100vh; }
.qb-nav {
  width: 220px;
  flex-shrink: 0;
  background: var(--qb-nav-bg);
  color: #fff;
  display: flex;
  flex-direction: column;
}
.qb-nav-brand {
  padding: 1.1rem 1rem;
  font-size: 1.1rem;
  font-weight: 700;
  border-bottom: 1px solid rgba(255,255,255,.1);
  letter-spacing: -0.02em;
}
.qb-nav-brand span { color: #8fd14f; }
.qb-nav-items { flex: 1; padding: 0.5rem 0; }
.qb-nav-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.65rem 1rem;
  border: none;
  background: transparent;
  color: #e0e0e0;
  font-size: 0.9rem;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}
.qb-nav-item:hover { background: var(--qb-nav-hover); color: #fff; }
.qb-nav-item.active { background: var(--qb-nav-active); color: #fff; font-weight: 600; }
.qb-nav-foot { padding: 1rem; font-size: 0.75rem; color: #9a9a9a; border-top: 1px solid rgba(255,255,255,.1); }
.qb-nav-foot a { color: #8fd14f; }

.qb-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.qb-topbar {
  background: var(--qb-card);
  border-bottom: 1px solid var(--qb-border);
  padding: 0.65rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.qb-topbar h2 { margin: 0; font-size: 1.25rem; font-weight: 600; }
.qb-topbar-actions { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.qb-env-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: #fff3cd;
  color: #856404;
  border: 1px solid #ffc107;
}
.qb-env-badge.prod { background: #e8f5e9; color: #2e7d32; border-color: #a5d6a7; }

.qb-content { flex: 1; padding: 1.25rem 1.5rem 2rem; overflow: auto; }
.qb-toast {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  max-width: 360px;
  padding: 0.75rem 1rem;
  background: var(--qb-text);
  color: #fff;
  border-radius: 6px;
  font-size: 0.875rem;
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
  z-index: 100;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .2s, transform .2s;
  pointer-events: none;
}
.qb-toast.show { opacity: 1; transform: translateY(0); }
.qb-toast.err { background: var(--qb-danger); }

/* Buttons */
.qb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.45rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}
.qb-btn-primary { background: var(--qb-green); color: #fff; border-color: var(--qb-green-dark); }
.qb-btn-primary:hover { background: var(--qb-green-hover); }
.qb-btn-secondary { background: #fff; color: var(--qb-text); border-color: var(--qb-border); }
.qb-btn-secondary:hover { background: #f4f5f8; }
.qb-btn-link { background: none; border: none; color: var(--qb-link); padding: 0.25rem 0.5rem; font-weight: 600; }
.qb-btn-link:hover { text-decoration: underline; }

/* Cards & KPI */
.qb-kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.25rem; }
.qb-kpi {
  background: var(--qb-card);
  border: 1px solid var(--qb-border);
  border-radius: 4px;
  padding: 1rem 1.15rem;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.qb-kpi .label { font-size: 0.75rem; color: var(--qb-muted); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.35rem; }
.qb-kpi .value { font-size: 1.5rem; font-weight: 600; color: var(--qb-text); }
.qb-kpi .value.money { color: var(--qb-green-dark); }

.qb-card {
  background: var(--qb-card);
  border: 1px solid var(--qb-border);
  border-radius: 4px;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.qb-card-head {
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--qb-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.qb-card-head h3 { margin: 0; font-size: 1rem; font-weight: 600; }
.qb-card-body { padding: 0; }
.qb-toolbar { padding: 0.75rem 1.15rem; border-bottom: 1px solid var(--qb-border); display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }

/* Tables */
.qb-table-wrap { overflow-x: auto; }
table.qb-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
table.qb-table th {
  text-align: left;
  padding: 0.6rem 1rem;
  background: #f4f5f8;
  border-bottom: 1px solid var(--qb-border);
  font-weight: 600;
  color: var(--qb-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
table.qb-table td {
  padding: 0.65rem 1rem;
  border-bottom: 1px solid #eee;
  vertical-align: middle;
}
table.qb-table tbody tr { cursor: pointer; }
table.qb-table tbody tr:hover { background: #f0f7fc; }
table.qb-table tbody tr.selected { background: #e3f2fd; }
table.qb-table td.num { text-align: right; font-variant-numeric: tabular-nums; }

.qb-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}
.qb-badge.paid { background: #e8f5e9; color: #2e7d32; }
.qb-badge.sent { background: #e3f2fd; color: #1565c0; }
.qb-badge.draft { background: #f5f5f5; color: #616161; }
.qb-badge.void { background: #ffebee; color: #c62828; }
.qb-badge.failed, .qb-badge.pending_payment { background: #fff3e0; color: #e65100; }
.qb-badge.complete, .qb-badge.provisioning, .qb-badge.paid { background: #e8f5e9; color: #2e7d32; }

/* Split invoice layout */
.qb-split { display: grid; grid-template-columns: 1fr min(380px, 40%); gap: 1rem; align-items: start; }
@media (max-width: 960px) { .qb-split { grid-template-columns: 1fr; } }
.qb-detail-panel { padding: 1rem 1.15rem; }
.qb-detail-panel h4 { margin: 0 0 0.75rem; font-size: 0.95rem; }
.qb-detail-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.qb-lines-table td, .qb-lines-table th { font-size: 0.8125rem; }
.qb-empty { padding: 2rem; text-align: center; color: var(--qb-muted); font-size: 0.9rem; }

.qb-row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.qb-settings details { margin-top: 1rem; }
.qb-settings summary { cursor: pointer; font-weight: 600; color: var(--qb-muted); font-size: 0.875rem; }
.qb-dev-pre {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background: #f4f5f8;
  border: 1px solid var(--qb-border);
  border-radius: 4px;
  font-size: 0.75rem;
  max-height: 12rem;
  overflow: auto;
  display: none;
}
.qb-dev-pre.show { display: block; }

input[type="hidden"] { display: none; }