:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --text-xs: 12px;
  --text-sm: 13px;
  --text-base: 14px;
  --text-lg: 18px;
  --text-xl: 24px;
  --surface-base: #f6f7f9;
  --surface-raised: #ffffff;
  --surface-muted: #eef2f6;
  --border-subtle: #e1e7ef;
  --border-strong: #b8c3d3;
  --shadow-sm: 0 1px 2px rgb(15 23 42 / 0.06);
  --shadow-md: 0 10px 24px rgb(15 23 42 / 0.10);
  --text-strong: #111827;
  --text-body: #293241;
  --text-muted: #64748b;
  --brand: #155eef;
  --brand-strong: #0f46c7;
  --success-bg: #e8f8ef;
  --success-text: #17633a;
  --danger-bg: #fdecec;
  --danger-text: #a12121;
  --warning-bg: #fff7df;
  --warning-text: #8a5b00;
  --info-bg: #eaf2ff;
  --info-text: #174ea6;
  --sidebar-width: 236px;
  --content-max: 1480px;
}

* { box-sizing: border-box; }

html { min-width: 0; }

body {
  margin: 0;
  background: var(--surface-base);
  color: var(--text-body);
  font-size: var(--text-base);
  line-height: 1.42;
  text-rendering: optimizeLegibility;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-strong); text-decoration: underline; }

:focus-visible {
  outline: 3px solid rgb(21 94 239 / 0.28);
  outline-offset: 2px;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-width);
  overflow-y: auto;
  background: #101722;
  color: #fff;
  padding: var(--space-4) var(--space-3);
  border-right: 1px solid rgb(255 255 255 / 0.08);
}

.brand {
  display: flex;
  align-items: center;
  min-height: 44px;
  margin: 0 0 var(--space-4);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
}

.brand img { display: block; width: 172px; max-width: 100%; height: auto; }

.sidebar nav { display: grid; gap: var(--space-1); }

.sidebar a,
.link-button {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 34px;
  padding: 8px 10px;
  border: 0;
  border-radius: var(--radius-md);
  color: #cbd5e1;
  background: transparent;
  text-align: left;
  font: inherit;
  font-size: var(--text-sm);
  cursor: pointer;
}

.sidebar a:hover,
.link-button:hover,
.sidebar a.is-active {
  color: #ffffff;
  background: rgb(255 255 255 / 0.09);
  text-decoration: none;
}

.sidebar a.is-active {
  box-shadow: inset 3px 0 0 #60a5fa;
}

.sidebar form { margin: var(--space-2) 0 0; }

.main {
  min-height: 100vh;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
}

.topbar {
  min-height: 52px;
  background: rgb(255 255 255 / 0.92);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-5);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(10px);
}

.topbar strong { color: var(--text-strong); font-size: var(--text-sm); }

.tenant-switch { display: flex; gap: var(--space-2); align-items: center; }

.user,
.muted {
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.page-head {
  width: min(100% - 40px, var(--content-max));
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) 0 var(--space-3);
}

h1,
h2,
h3,
p { margin-top: 0; }

h1 {
  margin-bottom: 0;
  color: var(--text-strong);
  font-size: var(--text-xl);
  line-height: 1.15;
  letter-spacing: 0;
}

h2 {
  margin: var(--space-5) 0 var(--space-3);
  color: var(--text-strong);
  font-size: var(--text-lg);
  line-height: 1.25;
}

h3 { font-size: var(--text-base); }

.panel > h2:first-child,
.card > h2:first-child { margin-top: 0; }

.cards {
  width: min(100% - 40px, var(--content-max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(178px, 1fr));
  gap: var(--space-3);
  padding: var(--space-2) 0 var(--space-3);
}

.card,
.panel {
  background: var(--surface-raised);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card {
  min-height: 104px;
  padding: var(--space-4);
}

.card span {
  display: block;
  min-height: 0;
  margin-bottom: var(--space-2);
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
}

.card strong {
  display: block;
  color: var(--text-strong);
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1.05;
  font-weight: 750;
  font-variant-numeric: tabular-nums;
}

.panel {
  width: min(100% - 40px, var(--content-max));
  margin: var(--space-3) auto;
  padding: var(--space-4);
}

.panel.actions,
.page-head .actions {
  justify-content: flex-end;
}

.panel p:last-child { margin-bottom: 0; }

.table-wrap {
  width: min(100% - 40px, var(--content-max));
  margin: var(--space-3) auto;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--surface-raised);
  box-shadow: var(--shadow-sm);
}

.panel .table-wrap {
  width: 100%;
  margin: var(--space-3) 0 0;
  box-shadow: none;
}

.table {
  width: 100%;
  min-width: 720px;
  margin: 0;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--surface-raised);
  font-size: var(--text-sm);
}

.table th,
.table td {
  text-align: left;
  padding: 9px 11px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
  white-space: nowrap;
}

.table th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f9fafc;
  color: #475569;
  font-size: var(--text-xs);
  font-weight: 750;
  text-transform: uppercase;
}

.table td {
  color: #263242;
  font-variant-numeric: tabular-nums;
}

.table td:nth-last-child(1) { text-align: right; }
.table td a { font-weight: 650; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: #f8fbff; }

.filters,
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: var(--space-3);
  align-items: end;
}

.filters {
  margin-top: 0;
  padding: var(--space-3);
}

form.panel label,
.filters label,
.login-box label,
.form-grid label,
.panel > label {
  display: grid;
  gap: var(--space-1);
  color: #465568;
  font-size: var(--text-xs);
  font-weight: 700;
}

label:has(input[type="checkbox"]) {
  display: flex;
  flex-direction: row;
  gap: var(--space-2);
  align-items: center;
  min-height: 34px;
}

input,
select,
textarea,
button,
.button {
  min-height: 34px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 7px 10px;
  font: inherit;
  font-size: var(--text-sm);
}

input,
select,
textarea {
  width: 100%;
  background: #ffffff;
  color: var(--text-strong);
}

input[type="checkbox"] {
  width: 16px;
  min-height: 16px;
  accent-color: var(--brand);
}

input[readonly],
textarea[readonly] {
  background: #f8fafc;
  color: var(--text-muted);
}

textarea {
  min-height: 78px;
  resize: vertical;
}

button,
.button {
  width: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  line-height: 1.15;
  text-decoration: none;
  white-space: nowrap;
}

button:hover,
.button:hover {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
  color: #fff;
  text-decoration: none;
}

.button.secondary,
button.secondary {
  background: #ffffff;
  color: #263242;
  border-color: var(--border-strong);
}

.button.secondary:hover,
button.secondary:hover {
  background: var(--surface-muted);
  border-color: #94a3b8;
  color: #111827;
}

.actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
}

.actions form { margin: 0; }

.subnav {
  width: min(100% - 40px, var(--content-max));
  margin: 0 auto var(--space-2);
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding: var(--space-2) 0;
}

.subnav a {
  flex: 0 0 auto;
  min-height: 32px;
  padding: 7px 10px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--surface-raised);
  color: #263242;
  font-size: var(--text-sm);
  font-weight: 700;
}

.subnav a:hover {
  background: var(--surface-muted);
  color: var(--text-strong);
  text-decoration: none;
}

.settlement-inline input,
.settlement-inline select {
  width: 128px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--surface-muted);
  color: #475569;
  border: 1px solid #dbe3ec;
  font-size: var(--text-xs);
  font-weight: 750;
  white-space: nowrap;
}

.badge.ok,
.badge.active,
.badge.authorized,
.badge.approved,
.badge.paid {
  background: var(--success-bg);
  color: var(--success-text);
  border-color: #b7e5ca;
}

.badge.off,
.badge.rejected,
.badge.cancelled,
.badge.overdue {
  background: var(--danger-bg);
  color: var(--danger-text);
  border-color: #f5b8b8;
}

.badge.warn,
.badge.pending,
.badge.draft {
  background: var(--warning-bg);
  color: var(--warning-text);
  border-color: #f4dc93;
}

.alert {
  width: min(100% - 40px, var(--content-max));
  margin: var(--space-3) auto;
  padding: var(--space-3) var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 650;
}

.alert.error { background: var(--danger-bg); color: var(--danger-text); border-color: #f5b8b8; }
.alert.warn { background: var(--warning-bg); color: var(--warning-text); border-color: #f4dc93; }
.alert.info { background: var(--info-bg); color: var(--info-text); border-color: #b7cdfb; }

.empty-state {
  padding: var(--space-6);
  color: var(--text-muted);
  text-align: center;
  background: var(--surface-raised);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space-6);
  background:
    linear-gradient(135deg, rgb(16 23 34 / 0.94), rgb(30 41 59 / 0.96)),
    #101722;
}

.login-box {
  width: min(396px, 100%);
  display: grid;
  gap: var(--space-3);
  background: var(--surface-raised);
  padding: var(--space-6);
  border: 1px solid rgb(255 255 255 / 0.2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.login-box .alert { width: 100%; margin: 0; }
.login-logo { display: block; width: min(244px, 100%); height: auto; margin: 0 auto var(--space-2); }

.sales-lines {
  display: grid;
  gap: var(--space-2);
}

.sales-line {
  display: grid;
  grid-template-columns: minmax(240px, 2fr) repeat(4, minmax(84px, 1fr)) minmax(86px, auto) auto;
  gap: var(--space-2);
  align-items: center;
  padding: var(--space-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: #fbfcfe;
}

.sales-line strong {
  text-align: right;
  color: var(--text-strong);
  font-variant-numeric: tabular-nums;
}

.totals {
  max-width: 420px;
  margin-left: auto;
}

.totals p {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-2);
}

.print-page {
  background: #ffffff;
}

.print-sheet {
  width: min(100% - 40px, 900px);
  margin: var(--space-6) auto;
  padding: var(--space-6);
  background: #ffffff;
  color: #111827;
}

.print-sheet .table-wrap {
  width: 100%;
  margin: var(--space-4) 0;
}

@media (max-width: 1020px) {
  :root { --sidebar-width: 210px; }
  .sidebar { padding-inline: var(--space-2); }
  .brand img { width: 156px; }
  .page-head,
  .panel,
  .cards,
  .subnav,
  .table-wrap,
  .alert { width: calc(100% - 28px); }
}

@media (max-width: 760px) {
  body { background: #ffffff; }
  .sidebar {
    position: static;
    width: 100%;
    max-height: none;
    padding: var(--space-3);
  }
  .brand { margin-bottom: var(--space-2); }
  .sidebar nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .sidebar form { margin: 0; }
  .main { margin-left: 0; }
  .topbar {
    position: static;
    align-items: stretch;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
  }
  .tenant-switch { width: 100%; }
  .tenant-switch button { flex: 0 0 auto; }
  .page-head {
    align-items: stretch;
    flex-direction: column;
    padding-top: var(--space-4);
  }
  h1 { font-size: 22px; }
  .filters,
  .form-grid,
  .cards { grid-template-columns: 1fr; }
  .panel,
  .card,
  .login-box { padding: var(--space-3); }
  .sales-line { grid-template-columns: 1fr; }
  .actions,
  .page-head .actions,
  .panel.actions {
    align-items: stretch;
  }
  .actions > *,
  .actions form,
  .actions button,
  .actions .button {
    width: 100%;
  }
}

@media (max-width: 430px) {
  .sidebar nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sidebar a,
  .link-button {
    min-height: 32px;
    padding: 7px 8px;
    font-size: 12px;
  }
  .page-head,
  .panel,
  .cards,
  .table-wrap,
  .alert { width: calc(100% - 20px); }
  .table th,
  .table td { padding: 8px 9px; }
}

@media print {
  :root { --surface-base: #ffffff; }
  body { background: #ffffff; }
  .sidebar,
  .topbar,
  .actions,
  button,
  .button { display: none !important; }
  .main { margin-left: 0; min-height: 0; display: block; }
  .page-head,
  .panel,
  .cards,
  .table-wrap,
  .alert,
  .print-sheet {
    width: 100%;
    margin: 0 0 12px;
    box-shadow: none;
  }
  .panel,
  .print-sheet { border: 0; padding: 0; }
  .table { min-width: 0; font-size: 11px; }
  .table th,
  .table td { padding: 5px 6px; }
}