/* Colours and radii from spec §5. */
:root {
  --bg: #f5f5f1;
  --surface: #fff;
  --border: #e6e6e0;
  --border-strong: #dcdcd5;
  --divider: #efefea;
  --text: #16181d;
  --text-2: #3d4048;
  --muted: #5c5f66;
  --primary: #1f6f5c;
  --primary-tint: #e3f0ec;
  --primary-dark: #12483b;
  --over-bar: #c2570c;
  --over-text: #a8470a;
  --card: #16181d;
  --card-fill: #5fc4a6;
  --card-track: #3a3d45;
  --card-text: #b9bbc0;
  --pending: #5a3fc0;
  --pending-row: #f8f6ff;
  --pending-banner: #f1edff;
  --pending-border: #dcd3ff;
  --pending-text: #4b3a99;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 15px/1.4 'DM Sans', system-ui, sans-serif;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px 16px 96px;
}

h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
}

h2 {
  margin: 24px 0 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--surface);
  font-weight: 600;
  cursor: pointer;
}

button:disabled {
  opacity: 0.5;
  cursor: default;
}

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

button.approve {
  border-color: var(--pending);
  background: var(--pending);
  color: #fff;
}

button.link {
  min-height: 44px;
  padding: 0 4px;
  border: 0;
  background: none;
  color: var(--primary);
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--surface);
}

label {
  display: block;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
}

label input,
label select,
label textarea {
  margin-top: 4px;
  font-size: 15px;
  font-weight: 400;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
}

.back {
  display: inline-block;
  padding: 10px 0;
  font-weight: 600;
  color: var(--primary);
}

.year {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
}

.year a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--primary);
  font-size: 20px;
}

.row {
  display: block;
  margin-bottom: 8px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}

a.row:hover,
button.row:hover {
  border-color: var(--border-strong);
}

button.row {
  width: 100%;
  height: auto;
  font-weight: 400;
  text-align: left;
}

.line {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.name {
  min-width: 0;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.amount {
  flex: none;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

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

.over {
  color: var(--over-text);
  font-weight: 600;
}

.bar {
  height: 6px;
  margin-top: 8px;
  border-radius: 3px;
  background: var(--divider);
  overflow: hidden;
}

.bar span {
  display: block;
  height: 100%;
  background: var(--primary);
}

.bar.over span {
  background: repeating-linear-gradient(
    45deg,
    var(--over-bar) 0 6px,
    #dd7a33 6px 12px
  );
}

.chip {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--primary-tint);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
}

.chip.pending {
  background: var(--pending-banner);
  color: var(--pending-text);
}

.chip + .chip {
  margin-left: 6px;
}

.summary {
  margin-bottom: 16px;
  padding: 16px;
  border-radius: 20px;
  background: var(--card);
  color: #fff;
}

.summary .big {
  font-size: 30px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.summary .sub {
  color: var(--card-text);
}

.summary .bar {
  background: var(--card-track);
}

.summary .bar span {
  background: var(--card-fill);
}

.summary .line {
  margin-top: 8px;
}

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  padding: 4px;
  border-radius: 999px;
  background: var(--divider);
}

.tabs a {
  flex: 1;
  padding: 10px;
  border-radius: 999px;
  text-align: center;
  font-weight: 600;
  color: var(--muted);
}

.tabs a.active {
  background: var(--surface);
  color: var(--text);
}

.banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
  padding: 10px 14px;
  border: 1px solid var(--pending-border);
  border-radius: 14px;
  background: var(--pending-banner);
  color: var(--pending-text);
  font-weight: 600;
}

.filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.expense.pending {
  border-color: var(--pending-border);
  background: var(--pending-row);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.actions select {
  flex: 1 1 180px;
  width: auto;
}

.nav {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.nav a {
  flex: 0 1 160px;
  padding: 10px;
  text-align: center;
  font-weight: 600;
  color: var(--muted);
}

.nav a.active {
  color: var(--primary);
}

.login {
  max-width: 360px;
  margin: 15vh auto 0;
}

.login h1 {
  margin-bottom: 16px;
}

.login button {
  width: 100%;
}

.error {
  margin: 8px 0;
  color: var(--over-text);
  font-weight: 500;
}

dialog {
  width: min(480px, calc(100vw - 32px));
  padding: 16px;
  border: 0;
  border-radius: 24px;
}

dialog::backdrop {
  background: rgb(22 24 29 / 50%);
}

dialog h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.part {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.part input {
  flex: 0 0 110px;
}

.part select {
  flex: 1;
  min-width: 0;
}

.part button {
  flex: none;
  padding: 0 14px;
}

.dialog-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

#toast {
  position: fixed;
  right: 16px;
  bottom: 76px;
  left: 16px;
  z-index: 10;
  max-width: 480px;
  margin: 0 auto;
  padding: 12px 16px;
  border-radius: 14px;
  background: var(--card);
  color: #fff;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

#toast.show {
  opacity: 1;
}