@font-face {
  font-family: InterVariable;
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/fonts/InterVariable.woff2") format("woff2");
}

@font-face {
  font-family: InterVariable;
  font-style: italic;
  font-weight: 100 900;
  font-display: swap;
  src: url("/fonts/InterVariable-Italic.woff2") format("woff2");
}

:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --ink: #18181b;
  --ink-secondary: #52525b;
  --ink-faint: #a1a1aa;
  --divider: rgb(9 9 11 / 0.08);
  --accent: #bef264;
  --accent-ink: #1a2e05;
  --focus: #3b82f6;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #09090b;
    --surface: #18181b;
    --ink: #fafafa;
    --ink-secondary: #a1a1aa;
    --ink-faint: #71717a;
    --divider: rgb(255 255 255 / 0.1);
  }
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

.save-status {
  color: var(--ink-faint);
}

.save-status:not(:empty)::after {
  content: " · ";
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: InterVariable, Inter, system-ui, sans-serif;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  font-size: 1rem;
  line-height: 1.5;
}

.app {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--divider);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.brand-mark {
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
}

.brand-name {
  font-weight: 600;
  letter-spacing: -0.01em;
}

.section {
  padding-top: 2rem;
}

.section + .section {
  margin-top: 2rem;
  border-top: 1px solid var(--divider);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

h1,
h2 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.date,
.month-label {
  margin: 0;
  color: var(--ink-secondary);
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
}

.habits {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.habit {
  border-top: 1px solid var(--divider);
}

.habit:first-child {
  border-top: 0;
}

.habit label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  cursor: pointer;
}

.habit input[type="checkbox"] {
  appearance: none;
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  margin: 0;
  border: 1px solid var(--ink-faint);
  border-radius: 0.25rem;
  background: var(--surface);
  display: grid;
  place-content: center;
  cursor: pointer;
}

.habit input[type="checkbox"]::before {
  content: "";
  width: 0.75rem;
  height: 0.75rem;
  opacity: 0;
  background: var(--accent-ink);
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

.habit input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.habit input[type="checkbox"]:checked::before {
  opacity: 1;
}

.habit input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.habit .habit-name {
  flex: 1;
  min-width: 0;
}

.habit .habit-streak {
  color: var(--ink-faint);
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
}

.note-row {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-top: 1rem;
}

label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-secondary);
}

input[type="text"],
input[type="number"],
input[type="password"] {
  font: inherit;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--divider);
  border-radius: 0.375rem;
  padding: 0.5rem 0.75rem;
  width: 100%;
}

input[type="text"]:focus-visible,
input[type="number"]:focus-visible,
input[type="password"]:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: -1px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin: 1rem 0 0;
}

@media (min-width: 40rem) {
  .stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat {
  padding: 0.75rem 1rem;
  border-left: 1px solid var(--divider);
}

.stat:nth-child(2n + 1) {
  border-left: 0;
  padding-left: 0;
}

@media (min-width: 40rem) {
  .stat:nth-child(2n + 1) {
    border-left: 1px solid var(--divider);
    padding-left: 1rem;
  }

  .stat:nth-child(4n + 1) {
    border-left: 0;
    padding-left: 0;
  }
}

.stat dt {
  margin: 0;
  font-size: 0.875rem;
  color: var(--ink-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stat dd {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.stat dd span {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--ink-faint);
}

.month-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.heatmap {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.25rem;
  margin-top: 1rem;
}

.heatmap .cell {
  aspect-ratio: 1;
  border-radius: 0.25rem;
  background: var(--divider);
  display: grid;
  place-content: center;
  font-size: 0.6875rem;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.heatmap .cell.empty {
  background: none;
}

.heatmap .cell[data-level="1"] { background: color-mix(in oklab, var(--accent) 25%, var(--bg)); color: var(--ink-secondary); }
.heatmap .cell[data-level="2"] { background: color-mix(in oklab, var(--accent) 45%, var(--bg)); color: var(--accent-ink); }
.heatmap .cell[data-level="3"] { background: color-mix(in oklab, var(--accent) 70%, var(--bg)); color: var(--accent-ink); }
.heatmap .cell[data-level="4"] { background: var(--accent); color: var(--accent-ink); font-weight: 500; }

.heatmap .cell.today {
  outline: 1px solid var(--ink-faint);
  outline-offset: 1px;
}

.heatmap .cell.selectable {
  cursor: pointer;
}

.heatmap .cell.selected {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}

.range-toggle {
  display: flex;
  gap: 0.25rem;
}

.range-toggle .btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--divider);
}

.momentum {
  margin: 1rem 0 0;
  font-size: 0.875rem;
  color: var(--ink-secondary);
  font-variant-numeric: tabular-nums;
}

.momentum[data-dir="up"],
.bar-change[data-dir="up"] {
  color: #65a30d;
}

.momentum[data-dir="down"],
.bar-change[data-dir="down"] {
  color: #dc2626;
}

.bar-change {
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
  min-width: 3rem;
  color: var(--ink-faint);
}

@media (prefers-color-scheme: dark) {
  .momentum[data-dir="up"],
  .bar-change[data-dir="up"] {
    color: #a3e635;
  }

  .momentum[data-dir="down"],
  .bar-change[data-dir="down"] {
    color: #f87171;
  }
}

.chart-label {
  margin: 1.25rem 0 0.5rem;
  font-size: 0.875rem;
  color: var(--ink-secondary);
}

.chart svg {
  display: block;
  width: 100%;
  height: 7.5rem;
}

.chart-area {
  fill: color-mix(in oklab, var(--accent) 25%, var(--bg));
  stroke: none;
}

.chart-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

@media (prefers-color-scheme: light) {
  .chart-line {
    stroke: #65a30d;
  }
}

.chart-empty {
  margin: 0;
  font-size: 0.875rem;
  color: var(--ink-faint);
}

.bar-row {
  display: grid;
  grid-template-columns: 8rem 1fr 5rem 3rem;
  align-items: center;
  gap: 0.75rem;
  padding: 0.375rem 0;
}

.bar-label {
  font-size: 0.875rem;
  color: var(--ink-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bar-track {
  background: var(--divider);
  border-radius: 0.25rem;
  height: 0.5rem;
  overflow: hidden;
}

.bar {
  height: 100%;
  background: var(--accent);
  border-radius: 0.25rem;
}

.bar-value {
  font-size: 0.875rem;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.income-row {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-top: 1.5rem;
  max-width: 20rem;
}

.income-controls {
  display: flex;
  gap: 0.5rem;
}

.btn {
  font: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  border: 0;
  border-radius: 0.375rem;
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  background: none;
  color: var(--ink);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--ink);
  color: var(--bg);
}

.btn-secondary {
  background: var(--surface);
  border: 1px solid var(--divider);
  color: var(--ink);
}

.btn-ghost {
  color: var(--ink-secondary);
}

.btn-ghost:hover {
  color: var(--ink);
}

.login {
  min-height: 100dvh;
  display: grid;
  place-content: center;
  padding: 1rem;
}

.login-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 20rem;
  max-width: 100%;
}

.login-card .brand {
  margin-bottom: 1.5rem;
}

.login-card .btn {
  margin-top: 0.5rem;
}

.error {
  margin: 0;
  font-size: 0.875rem;
  color: #dc2626;
}

@media (prefers-color-scheme: dark) {
  .error {
    color: #f87171;
  }
}