@font-face {
  font-family: "Albert Sans";
  src: url("/static/fonts/AlbertSans-Thin.woff2") format("woff2");
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Albert Sans";
  src: url("/static/fonts/AlbertSans-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Albert Sans";
  src: url("/static/fonts/AlbertSans-LightItalic.woff2") format("woff2");
  font-weight: 300;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "Albert Sans";
  src: url("/static/fonts/AlbertSans-ExtraBold.woff2") format("woff2");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --bg: #f7f7f8;
  --panel: #ffffff;
  --text: #151515;
  --muted: #6b7280;
  --border: #d9dde3;
  --button: #1976d2;
  --button-hover: #125aa0;
  --button-text: #ffffff;
  --secondary: #e7ebf0;
  --secondary-hover: #d4dbe4;
  --danger: #c62828;
  --nav: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --panel: #0d0d0d;
    --text: #f5f5f5;
    --muted: #a3a3a3;
    --border: #2a2a2a;
    --button: #4f9cff;
    --button-hover: #2f7fdf;
    --button-text: #000000;
    --secondary: #222222;
    --secondary-hover: #303030;
    --danger: #ff6b6b;
    --nav: #080808;
  }
}

[data-theme="light"] {
  --bg: #f7f7f8;
  --panel: #ffffff;
  --text: #151515;
  --muted: #6b7280;
  --border: #d9dde3;
  --button: #1976d2;
  --button-hover: #125aa0;
  --button-text: #ffffff;
  --secondary: #e7ebf0;
  --secondary-hover: #d4dbe4;
  --danger: #c62828;
  --nav: #ffffff;
}

[data-theme="dark"] {
  --bg: #000000;
  --panel: #0d0d0d;
  --text: #f5f5f5;
  --muted: #a3a3a3;
  --border: #2a2a2a;
  --button: #4f9cff;
  --button-hover: #2f7fdf;
  --button-text: #000000;
  --secondary: #222222;
  --secondary-hover: #303030;
  --danger: #ff6b6b;
  --nav: #080808;
}

* {
  box-sizing: border-box;
}

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

button,
input,
select {
  font: inherit;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  background: var(--button);
  color: var(--button-text);
  font-weight: 800;
  cursor: pointer;
}

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

button.secondary,
.tab {
  background: var(--secondary);
  color: var(--text);
}

button.secondary:hover,
.tab:hover {
  background: var(--secondary-hover);
}

input,
select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  padding: 10px 12px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.hidden {
  display: none !important;
}

.auth-shell,
.app-shell {
  width: min(100%, 620px);
  margin: 0 auto;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.app-shell {
  min-height: 100vh;
  padding: 18px 14px 92px;
}

.panel,
.metric,
.empty {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
}

.auth-panel {
  width: 100%;
  padding: 20px;
}

.app-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}

.app-title h1,
.topbar h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: 0;
}

.mark {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--button);
}

.stack {
  display: grid;
  gap: 14px;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.message {
  min-height: 20px;
  margin: 0;
  color: var(--danger);
  font-size: 14px;
}

.message.ok {
  color: var(--button);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.muted {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 14px;
}

.top-actions {
  display: flex;
  gap: 8px;
}

.icon-button {
  width: 44px;
  padding: 0;
  background: var(--secondary);
  color: var(--text);
  font-size: 22px;
}

.icon-button:hover {
  background: var(--secondary-hover);
}

.metric {
  display: grid;
  gap: 10px;
  padding: 18px;
  margin-bottom: 12px;
}

.metric span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.metric strong {
  font-size: 36px;
  line-height: 1.1;
}

.metric-breakdown {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px 12px;
  margin-top: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.metric-breakdown span {
  font-size: 13px;
}

.metric-breakdown strong {
  font-size: 18px;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.tab.active {
  background: var(--button);
  color: var(--button-text);
}

#expenseForm,
#installmentForm,
.section-content {
  padding: 14px;
}

.list {
  display: grid;
  gap: 10px;
}

.month-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.month-toolbar button {
  min-width: 0;
  padding: 0 8px;
  font-size: 13px;
  white-space: nowrap;
}

.month-toolbar strong {
  min-height: 32px;
  display: grid;
  place-items: center;
  width: 120px;
  color: var(--text);
  font-size: 14px;
  text-transform: capitalize;
  white-space: nowrap;
}

.expense-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto 44px;
  align-items: center;
  gap: 6px 12px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
}

.expense-row strong {
  overflow-wrap: anywhere;
}

.expense-main {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.expense-row .amount {
  font-weight: 800;
}

.expense-row .meta {
  color: var(--muted);
  font-size: 13px;
}

.delete-expense {
  width: 44px;
  min-height: 44px;
  padding: 0;
  background: var(--secondary);
  color: var(--danger);
  font-size: 22px;
}

.delete-expense:hover {
  background: var(--secondary-hover);
}

.wide-action {
  width: 100%;
  margin-bottom: 12px;
}

.month-total-row {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.month-expand {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto 28px;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 56px;
  border-radius: 0;
  background: var(--panel);
  color: var(--text);
  padding: 10px 12px;
  text-align: left;
}

.month-expand:hover {
  background: var(--secondary);
}

.month-total-row strong {
  text-transform: capitalize;
}

.month-expand > span:not(.section-arrow) {
  font-weight: 800;
}

.past-month {
  opacity: 0.72;
}

.installment-details {
  display: grid;
  gap: 8px;
  padding: 0 12px 12px;
}

.installment-detail-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 10px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}

.installment-detail-row strong {
  grid-column: 1 / -1;
  overflow-wrap: anywhere;
}

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

.empty {
  padding: 24px;
  color: var(--muted);
  text-align: center;
}

.settings-section {
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
}

.section-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  padding: 0 14px;
  text-align: left;
}

.section-toggle:hover {
  background: var(--secondary);
}

.section-arrow {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--secondary);
}

.settings-group {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.settings-group h2 {
  margin: 0;
  font-size: 16px;
  letter-spacing: 0;
}

.inline-form,
.lookup-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 80px 82px;
  gap: 8px;
}

.inline-form {
  grid-template-columns: minmax(0, 1fr) 82px;
}

.order-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
}

.order-button {
  min-height: 44px;
  padding: 0;
  background: var(--secondary);
  color: var(--text);
}

.order-button:hover {
  background: var(--secondary-hover);
}

.order-button:disabled {
  color: var(--muted);
  cursor: default;
  opacity: 0.45;
}

.order-button:disabled:hover {
  background: var(--secondary);
}

.settings-list {
  display: grid;
  gap: 8px;
}

.token-input {
  font-family: monospace;
  font-size: 13px;
}

.bottom-nav {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  max-width: 620px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
  background: var(--nav);
}

.nav-item {
  min-height: 68px;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.nav-item:hover,
.nav-item.active {
  background: var(--secondary);
  color: var(--text);
}

.nav-add {
  color: var(--button);
}

.png-placeholder {
  display: block;
  width: 24px;
  height: 24px;
  margin: 0 auto 4px;
  border: 2px solid currentColor;
  border-radius: 5px;
}

@media (min-width: 560px) {
  .app-shell {
    padding-top: 28px;
  }

  .auth-panel,
  #expenseForm,
  #installmentForm,
  .section-content {
    padding: 22px;
  }
}