:root {
  color-scheme: light;
  --bg: #f5f7f6;
  --panel: #ffffff;
  --ink: #17211d;
  --muted: #68756f;
  --line: #d9e1dd;
  --primary: #166b57;
  --primary-dark: #0d4c3d;
  --accent: #b88a24;
  --danger: #a33b3b;
  --shadow: 0 16px 40px rgba(19, 38, 31, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--primary-dark);
}

button.ghost {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

button.ghost:hover {
  border-color: var(--primary);
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  background: #fff;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 22px;
}

.hidden {
  display: none !important;
}

.app-shell {
  min-height: 100vh;
}

.login-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(420px, 100%);
  display: grid;
  gap: 18px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.workspace {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 22px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.user-box {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-weight: 700;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.tabs button {
  min-height: 48px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.tabs button.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.stats-grid article,
.form-panel,
.report-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 8px 22px rgba(19, 38, 31, 0.06);
}

.stats-grid article {
  display: grid;
  gap: 8px;
  padding: 16px;
}

.stats-grid span,
.balance-list span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.stats-grid strong,
.balance-list strong {
  font-size: 24px;
}

.form-panel,
.report-panel {
  display: grid;
  gap: 18px;
  padding: 20px;
}

.income-form {
  gap: 20px;
}

.income-top-grid {
  display: grid;
  grid-template-columns: minmax(190px, 1.1fr) minmax(160px, 0.9fr) minmax(160px, 0.9fr) minmax(180px, 1fr);
  gap: 14px;
  align-items: end;
}

.income-kind-field {
  grid-column: span 1;
}

.income-payment-grid {
  align-items: end;
}

#incomeClientFields {
  grid-template-columns: repeat(3, minmax(160px, 1fr));
}

.income-bottom-grid {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(180px, 240px);
  gap: 14px;
  align-items: end;
}

.income-bottom-grid button {
  min-height: 56px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.split-panel {
  grid-column: 1 / -1;
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}

.split-rows {
  display: grid;
  gap: 10px;
}

.split-row {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) minmax(190px, 1.2fr) 112px;
  gap: 10px;
  align-items: end;
}

.split-actions {
  display: grid;
  grid-template-columns: 56px 44px;
  gap: 8px;
}

.split-row button {
  padding: 0;
  font-size: 22px;
  line-height: 1;
}

.split-row .add-payment-button {
  min-height: 50px;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  font-size: 30px;
}

.split-row .add-payment-button:hover {
  background: var(--primary-dark);
}

.split-row .remove-payment-button {
  min-height: 50px;
}

.aka-calc-rows {
  display: grid;
  gap: 10px;
}

.aka-calc-row {
  display: grid;
  grid-template-columns: minmax(180px, 1.3fr) minmax(140px, 0.8fr);
  gap: 10px;
  align-items: end;
}

.aka-calc-row .meta {
  display: grid;
  gap: 4px;
  min-height: 50px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.aka-calc-row span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-head input {
  max-width: 190px;
}

.balance-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.balance-list div {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.admin-users {
  display: grid;
  gap: 10px;
}

.admin-user-row {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(120px, 0.8fr) minmax(150px, 1fr) 96px 120px;
  gap: 10px;
  align-items: end;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.admin-user-row .status {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 1380px;
  border-collapse: collapse;
}

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 13px;
}

.report-output {
  display: grid;
  gap: 14px;
}

.report-output .rows {
  display: grid;
  gap: 8px;
}

.report-output .row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.error {
  min-height: 20px;
  color: var(--danger);
  font-size: 14px;
  font-weight: 700;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: min(360px, calc(100vw - 36px));
  padding: 13px 16px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  box-shadow: var(--shadow);
}

@media (max-width: 900px) {
  .workspace {
    padding: 14px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .tabs {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid,
  .form-grid,
  .income-top-grid,
    #incomeClientFields,
    .income-bottom-grid,
    .balance-list,
    .split-row,
    .aka-calc-row,
    .admin-user-row {
    grid-template-columns: 1fr;
  }

  .panel-head {
    align-items: stretch;
    flex-direction: column;
  }

  .panel-head input {
    max-width: none;
  }
}