:root {
  --radius: 0.625rem;
  --background: oklch(1 0 0);
  --foreground: oklch(0.145 0 0);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.145 0 0);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.145 0 0);
  --primary: oklch(0.205 0 0);
  --primary-foreground: oklch(0.985 0 0);
  --secondary: oklch(0.97 0 0);
  --secondary-foreground: oklch(0.205 0 0);
  --muted: oklch(0.97 0 0);
  --muted-foreground: oklch(0.556 0 0);
  --accent: oklch(0.97 0 0);
  --accent-foreground: oklch(0.205 0 0);
  --destructive: oklch(0.577 0.245 27.325);
  --destructive-foreground: oklch(0.985 0 0);
  --border: oklch(0.922 0 0);
  --input: oklch(0.922 0 0);
  --ring: oklch(0.708 0 0);
  --success: #15803d;
  --success-muted: #f0fdf4;
  --success-border: #bbf7d0;
  --warning: oklch(0.72 0.15 72);
  --green-dark: var(--success);
  --green: var(--success);
  --blue: var(--primary);
  --red: var(--destructive);
  --amber: var(--warning);
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

:root[data-theme="dark"] {
  --background: oklch(0.145 0 0);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.205 0 0);
  --card-foreground: oklch(0.985 0 0);
  --popover: oklch(0.205 0 0);
  --popover-foreground: oklch(0.985 0 0);
  --primary: oklch(0.922 0 0);
  --primary-foreground: oklch(0.205 0 0);
  --secondary: oklch(0.269 0 0);
  --secondary-foreground: oklch(0.985 0 0);
  --muted: oklch(0.269 0 0);
  --muted-foreground: oklch(0.708 0 0);
  --accent: oklch(0.269 0 0);
  --accent-foreground: oklch(0.985 0 0);
  --destructive: oklch(0.704 0.191 22.216);
  --destructive-foreground: oklch(0.985 0 0);
  --border: oklch(1 0 0 / 10%);
  --input: oklch(1 0 0 / 14%);
  --ring: oklch(0.556 0 0);
  --success: #86efac;
  --success-muted: rgba(20, 83, 45, .24);
  --success-border: rgba(74, 222, 128, .36);
  --warning: oklch(0.78 0.13 72);
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-size: 15px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

button, input, select { font: inherit; }

button {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: calc(var(--radius) - 2px);
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease, opacity .15s ease;
}

button:disabled { cursor: not-allowed; opacity: .5; }

input, select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--input);
  border-radius: calc(var(--radius) - 2px);
  background: transparent;
  color: var(--foreground);
  padding: 0 12px;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease, background-color .15s ease;
}

input:focus, select:focus, button:focus-visible {
  border-color: var(--ring);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--ring) 22%, transparent);
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted-foreground);
  font-size: .875rem;
  font-weight: 600;
}

h1, h2, h3, p { margin: 0; }
h1 { font-size: 3rem; line-height: 1.05; letter-spacing: 0; }
h2 { font-size: 1.25rem; line-height: 1.2; letter-spacing: 0; }
h3 { font-size: 1rem; line-height: 1.3; }

.hidden { display: none !important; }
.muted { color: var(--muted-foreground); }
.eyebrow { color: var(--muted-foreground); font-size: .75rem; font-weight: 700; text-transform: uppercase; }

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

.auth-card {
  width: min(420px, 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--card-foreground);
  padding: 28px;
}

.auth-card h1 { margin-top: 6px; font-size: 2.25rem; }
.auth-card .muted { margin: 12px 0 24px; line-height: 1.65; }
.stack { display: grid; gap: 16px; }

.primary {
  background: var(--primary);
  color: var(--primary-foreground);
  padding: 0 16px;
}

.primary:hover { opacity: .9; }

.secondary {
  border-color: var(--border);
  background: var(--secondary);
  color: var(--secondary-foreground);
  padding: 0 14px;
}

.secondary:hover, .filter-button:hover, .ghost:hover { background: var(--accent); color: var(--accent-foreground); }

.danger {
  background: color-mix(in oklch, var(--destructive) 12%, transparent);
  color: var(--destructive);
  padding: 0 14px;
}

.danger:hover { background: color-mix(in oklch, var(--destructive) 18%, transparent); }

.ghost {
  border-color: var(--border);
  background: transparent;
  color: var(--foreground);
  padding: 0 14px;
}

.message { min-height: 20px; color: var(--destructive); font-weight: 600; }

.app-shell {
  width: min(1240px, calc(100% - 40px));
  margin: 0 auto;
  padding: 32px 0 72px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.topbar h1 { font-size: 3.25rem; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }

.user-chip {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--muted-foreground);
  padding: 0 14px;
  font-weight: 600;
}

.tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
  overflow-x: auto;
}

.tab {
  min-height: 44px;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--muted-foreground);
  padding: 0 16px;
}

.tab:hover { color: var(--foreground); background: transparent; }
.tab.active { border-bottom-color: var(--foreground); color: var(--foreground); }

.tab-panel { display: none; }
.tab-panel.active { display: grid; gap: 24px; }

.message-bar {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  margin-bottom: 20px;
  padding: 12px 14px;
  font-weight: 600;
}

.panel, .kpi, .summary-card, .auth-card, .modal-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--card-foreground);
}

.panel { padding: 24px; }
.panel-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.panel-header h2 { margin-bottom: 4px; }

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.kpi {
  min-height: 132px;
  padding: 22px;
}

.kpi strong {
  display: block;
  margin-top: 22px;
  text-align: right;
  font-size: 2.25rem;
  line-height: 1;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.kpi.positive {
  background: var(--success-muted);
  border-color: var(--success-border);
}

.kpi.bad {
  background: color-mix(in oklch, var(--destructive) 9%, var(--card));
  border-color: color-mix(in oklch, var(--destructive) 28%, var(--border));
}

.layout-2 {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, .8fr);
  gap: 20px;
}

.category-list, .contract-list, .quarterly-list, .user-list {
  display: grid;
  gap: 12px;
}

.category-row, .contract-row, .quarterly-row, .user-row {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.category-row:first-child, .contract-row:first-child, .quarterly-row:first-child, .user-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.row-between { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.amount, .amount-right { font-weight: 700; font-variant-numeric: tabular-nums; }
.amount-right { display: inline-block; min-width: 118px; text-align: right; }

.bar {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--muted);
}

.bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--category-color, var(--foreground));
}

.badge {
  display: inline-flex;
  width: fit-content;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 10px;
  font-size: .8125rem;
  font-weight: 700;
}

.badge.ok { background: color-mix(in oklch, var(--success) 12%, transparent); color: var(--success); }
.badge.warn { background: color-mix(in oklch, var(--warning) 16%, transparent); color: color-mix(in oklch, var(--warning) 70%, var(--foreground)); }
.badge.danger { background: color-mix(in oklch, var(--destructive) 12%, transparent); color: var(--destructive); }

.contract-list .contract-row {
  margin: 0 -10px;
  padding: 14px 10px 14px 14px;
  border-left: 4px solid var(--category-color, var(--border));
  border-radius: var(--radius);
}

.contract-list .contract-row:nth-child(even), .quarterly-list .quarterly-row:nth-child(even) {
  background: var(--muted);
}

.contract-list .contract-row:hover { background: var(--accent); }

.contract-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 140px 118px;
  gap: 18px;
  align-items: center;
}

.contract-main { min-width: 0; }
.contract-amount { justify-self: end; min-width: 140px; }
.contract-status { justify-self: end; min-width: 96px; }

.category-label { display: inline-flex; align-items: center; gap: 9px; }
.category-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--category-color, var(--foreground));
}

.calc-layout {
  display: grid;
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.calc-sidebar {
  position: sticky;
  top: 18px;
}

.summary-grid { display: grid; gap: 12px; }

.summary-card {
  padding: 18px;
}

.summary-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.65rem;
  line-height: 1;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.summary-card.highlight {
  background: var(--success-muted);
  border-color: var(--success-border);
}
.summary-card.warning { background: color-mix(in oklch, var(--warning) 10%, var(--card)); border-color: color-mix(in oklch, var(--warning) 34%, var(--border)); }
.summary-card.bad { background: color-mix(in oklch, var(--destructive) 9%, var(--card)); border-color: color-mix(in oklch, var(--destructive) 28%, var(--border)); }

.compact-settings {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  gap: 12px;
  align-items: end;
}

.required-money-field {
  position: relative;
  overflow: hidden;
  border: 1px solid color-mix(in oklch, var(--primary) 18%, var(--border));
  border-radius: var(--radius);
  background: color-mix(in oklch, var(--accent) 55%, var(--card));
  padding: 10px 10px 10px 14px;
}

.required-money-field::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 999px;
  background: var(--primary);
}

.required-money-field > span:first-child {
  color: var(--foreground);
  font-size: .8125rem;
}

.required-money-field .money-input input {
  border-color: color-mix(in oklch, var(--ring) 32%, var(--input));
  background: var(--background);
  font-weight: 700;
}

.required-money-field .money-input::after {
  color: var(--foreground);
}

.money-input {
  position: relative;
  display: block;
}

.money-input input {
  text-align: right;
  padding-right: 30px;
  font-variant-numeric: tabular-nums;
}

.money-input::after {
  content: "€";
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted-foreground);
  font-weight: 700;
  pointer-events: none;
}

.expense-panel {
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 220px);
  min-height: 560px;
}

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

.expense-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.filter-tabs { display: flex; gap: 6px; flex-wrap: wrap; }

.filter-button {
  min-height: 36px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted-foreground);
  padding: 0 12px;
}

.filter-button.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-foreground);
}

.expense-list-scroll {
  --expense-grid: 30px minmax(34ch, 2fr) 108px 144px minmax(152px, .75fr) 38px;
  flex: 1;
  min-height: 180px;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 4px;
}

.expense-list-header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: var(--expense-grid);
  gap: 10px;
  align-items: center;
  margin-bottom: 8px;
  padding: 0 10px 8px 18px;
  background: var(--card);
  color: var(--muted-foreground);
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.expense-list-header span:nth-child(2) { padding-left: 12px; }
.expense-list-header .numeric-heading {
  padding-right: 24px;
  text-align: right;
}
.expense-list-header .expense-date-heading,
.expense-list-header .expense-category-heading {
  padding-left: 12px;
}
.expense-list-header .expense-recurrence-heading { display: none; }

.expense-list {
  display: grid;
  gap: 0;
}

.expense-card {
  position: relative;
  display: grid;
  grid-template-columns: var(--expense-grid);
  gap: 10px;
  align-items: center;
  min-width: 0;
  border-top: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  padding: 12px 10px 12px 18px;
  overflow: hidden;
}

.expense-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: 999px;
  background: var(--category-color, var(--border));
}

.expense-card:nth-child(even) { background: var(--muted); }
.expense-card:hover { background: var(--accent); }
.expense-card > * { min-width: 0; }
.expense-card [data-field=recurrence] { display: none; }
.expense-card input, .expense-card select { min-height: 36px; border-color: transparent; }
.expense-card:hover input, .expense-card:hover select, .expense-card input:focus, .expense-card select:focus { border-color: var(--input); background: var(--card); }

.expense-check { display: grid; place-items: center; }
input[type=checkbox] { width: 20px; min-height: 20px; accent-color: var(--primary); }
.expense-name { display: grid; gap: 4px; }
.expense-name input { font-weight: 700; }
.paid-row { color: var(--muted-foreground); }
.paid-row input:not([type=checkbox]), .paid-row select { color: var(--muted-foreground); }

.expense-amount {
  position: relative;
}

.expense-amount input {
  text-align: right;
  padding-right: 24px;
  font-variant-numeric: tabular-nums;
}

.expense-amount::after {
  content: "€";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted-foreground);
  font-weight: 700;
  pointer-events: none;
}

.expense-meta { display: none; color: var(--muted-foreground); font-size: .8125rem; }
.empty-state { border: 1px dashed var(--border); border-radius: var(--radius); color: var(--muted-foreground); padding: 22px; text-align: center; }

.date-cell { position: relative; display: block; }
.date-cell input { width: 100%; }
.date-cell.empty-date input, .date-cell.empty-date input::-webkit-datetime-edit { color: transparent; }
.date-cell.empty-date input:focus, .date-cell.empty-date input:focus::-webkit-datetime-edit { color: var(--foreground); }
.infinity-date { display: none; position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--muted-foreground); font-size: 1.1rem; font-weight: 700; pointer-events: none; }
.date-cell.empty-date .infinity-date { display: block; }
.date-cell.empty-date:focus-within .infinity-date { display: none; }

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 36px;
  min-width: 36px;
  min-height: 36px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 2px);
  background: transparent;
  color: var(--muted-foreground);
  padding: 0;
  font-size: 1rem;
  line-height: 1;
}

.icon-button:hover { border-color: color-mix(in oklch, var(--destructive) 35%, var(--border)); background: color-mix(in oklch, var(--destructive) 9%, transparent); color: var(--destructive); }

.admin-grid {
  display: grid;
  grid-template-columns: minmax(320px, .8fr) minmax(0, 1.2fr);
  gap: 20px;
}

.user-row { grid-template-columns: 1fr auto; align-items: center; }
.inline-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: flex-end; }
.inline-actions input { width: 190px; }
.users-panel { grid-column: 1 / -1; }

.category-color-list { display: grid; gap: 10px; }
.category-color-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  background: var(--card);
}
.category-color-row span:first-child { display: inline-flex; align-items: center; gap: 8px; color: var(--foreground); font-weight: 700; }
.category-color-row input[type=color] { width: 46px; min-height: 34px; padding: 3px; border-radius: calc(var(--radius) - 2px); cursor: pointer; }

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: oklch(0 0 0 / 42%);
  padding: 18px;
}

.modal-card {
  width: min(440px, 100%);
  padding: 22px;
}

.wide-modal { width: min(620px, 100%); }
.modal-header { display: flex; align-items: start; justify-content: space-between; gap: 14px; margin-bottom: 20px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }
.compact-button { min-height: 34px; padding: 0 12px; }

.quarterly-edit-list { display: grid; gap: 10px; margin-bottom: 12px; }
.quarterly-edit-row { display: grid; grid-template-columns: minmax(0, 1fr) 150px 38px; gap: 8px; align-items: center; }
.quarterly-edit-row .money-input input { text-align: right; }

@media (max-width: 1100px) {
  .calc-layout { grid-template-columns: 1fr; }
  .calc-sidebar { position: static; }
  .summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .expense-panel { max-height: none; min-height: auto; }
  .expense-list-scroll { overflow: visible; padding-right: 0; }
  .expense-list-header, .expense-card { grid-template-columns: 30px minmax(0, 1fr) 96px 38px; }
  .expense-list-header .expense-date-heading, .expense-list-header .expense-category-heading { display: none; }
  .expense-card [data-field=category], .expense-card .date-cell { display: none; }
  .expense-meta { display: block; }
}

@media (max-width: 880px) {
  h1, .topbar h1 { font-size: 2.5rem; }
  .auth-card h1 { font-size: 2rem; }
  .app-shell { width: min(100% - 24px, 1240px); padding-top: 20px; }
  .topbar { align-items: flex-start; flex-direction: column; gap: 16px; }
  .topbar-actions { width: 100%; flex-wrap: wrap; }
  .kpi-grid, .layout-2, .admin-grid, .compact-settings { grid-template-columns: 1fr; }
  .compact-settings button { width: 100%; }
  .panel, .kpi, .auth-card { padding: 18px; }
  .user-row { grid-template-columns: 1fr; }
  .inline-actions { justify-content: stretch; }
  .inline-actions input, .inline-actions button, .inline-actions select { width: 100%; }
}

@media (max-width: 620px) {
  body { font-size: 14px; }
  h1, .topbar h1 { font-size: 2.125rem; }
  .tabs { margin-bottom: 20px; }
  .summary-grid { grid-template-columns: 1fr; }
  .expense-toolbar { align-items: stretch; flex-direction: column; }
  .expense-actions { align-items: stretch; flex-direction: column; }
  .filter-tabs { display: grid; grid-template-columns: repeat(3, 1fr); }
  .expense-list-header { display: none; }
  .expense-card { grid-template-columns: 26px minmax(0, 1fr) 86px 36px; gap: 8px; padding: 10px 8px 10px 16px; }
  .expense-card input, .expense-card select { border-color: var(--input); background: var(--card); }
  .contract-grid { grid-template-columns: minmax(0, 1fr) 120px; gap: 10px; }
  .contract-status { grid-column: 2; justify-self: end; }
  .contract-amount { grid-column: 2; grid-row: 1; min-width: 120px; }
  .modal-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .quarterly-edit-row { grid-template-columns: 1fr 118px 38px; }
}