:root {
  --cream: #fff8f0;
  --surface: #ffffff;
  --ink: #3b332e;
  --ink-soft: #7a6e66;
  --line: #efe4d8;
  --kyle: #a7e7b8;
  --eunice: #ffc8a8;
  --me: var(--cream);

  --radius-card: 16px;
  --shadow: 0 1px 2px rgb(88 62 40 / 0.06), 0 8px 24px rgb(88 62 40 / 0.08);
  --font: "Nunito", ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", sans-serif;

  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
}

[hidden] {
  /* biome-ignore lint/complexity/noImportantStyles: [hidden] must win over component display rules */
  display: none !important;
}

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

button {
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* People */

[data-person="Kyle"] {
  --person: var(--kyle);
}

[data-person="Eunice"] {
  --person: var(--eunice);
}

.badge {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--person, var(--line));
  color: var(--ink);
  font-weight: 800;
  font-size: 0.9375rem;
  line-height: 1;
}

.badge-sm {
  width: 1.375rem;
  height: 1.375rem;
  font-size: 0.75rem;
}

.badge-lg {
  width: 2.75rem;
  height: 2.75rem;
  font-size: 1.125rem;
  box-shadow: 0 0 0 3px var(--surface);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0 1.5rem;
  border: 2px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 120ms ease;
}

.btn:active:not(:disabled) {
  transform: scale(0.97);
}

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

.btn-primary:disabled {
  background: var(--line);
  color: var(--ink-soft);
  cursor: not-allowed;
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
}

.btn-sm {
  min-height: 2.25rem;
  padding: 0 1rem;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

.link-btn {
  padding: 0.5rem 0.25rem;
  border: 0;
  background: none;
  color: var(--ink-soft);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.link-danger {
  color: var(--ink);
}

/* Login */

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

.login-card {
  width: min(100%, 22rem);
  display: grid;
  gap: 1rem;
  text-align: center;
}

.login-mark {
  display: flex;
  justify-content: center;
}

.login-mark .badge + .badge {
  margin-left: -0.5rem;
}

.login-title {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.01em;
}

/* Form fields */

.field {
  display: grid;
  gap: 0.375rem;
  margin: 0;
  padding: 0;
  border: 0;
  text-align: left;
}

.field-label {
  padding: 0;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ink-soft);
}

.field input,
.field select {
  width: 100%;
  min-height: 3rem;
  padding: 0 1rem;
  border: 2px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  font-size: 1rem;
}

.field select {
  appearance: none;
  padding-right: 2.5rem;
  background:
    var(--surface)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%233b332e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    no-repeat right 1rem center / 0.75rem;
  color: var(--ink);
  font: inherit;
}

.field input:focus-visible,
.field select:focus-visible {
  outline: none;
  border-color: var(--ink);
}

.form-error {
  min-height: 1.5rem;
  margin: 0;
  font-weight: 700;
  font-size: 0.9375rem;
}

.form-error:empty {
  min-height: 0;
}

/* Home */

.home {
  width: min(100%, 30rem);
  margin: 0 auto;
  padding: max(1rem, env(safe-area-inset-top)) 1rem calc(6.5rem + env(safe-area-inset-bottom));
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.trip-name {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 900;
}

.whoami {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Balance: the one loud element on the page */

.balance {
  --tint: var(--surface);
  display: grid;
  justify-items: center;
  gap: 0.25rem;
  padding: 1.5rem 1rem 1.25rem;
  border-radius: var(--radius-card);
  background: var(--tint);
  box-shadow: var(--shadow);
  text-align: center;
  transition: background-color 300ms ease;
}

.balance[data-owed="Kyle"] {
  --tint: var(--kyle);
}

.balance[data-owed="Eunice"] {
  --tint: var(--eunice);
}

.balance-flow {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.balance-flow .badge-lg {
  box-shadow: 0 0 0 3px var(--tint);
}

.balance[data-owed] .balance-flow #flow-from,
.balance[data-owed] .balance-flow #flow-to {
  background: var(--surface);
}

.flow-arrow {
  color: var(--ink);
}

.balance:not([data-owed]) .flow-arrow {
  display: none;
}

.balance-amount {
  margin: 0;
  font-size: clamp(2.75rem, 13vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.balance-message {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
}

.settled-note {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin: 0.5rem 0 0;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: rgb(255 255 255 / 0.7);
  font-size: 0.875rem;
  font-weight: 800;
}

.settle-row {
  display: flex;
  justify-content: center;
  margin: 0.75rem 0 1.5rem;
}

/* Filters */

.chips {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  min-height: 2.5rem;
  padding: 0 1rem;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: transparent;
  font-weight: 700;
  font-size: 0.9375rem;
}

.chip:has(.badge) {
  padding-left: 0.5rem;
}

.chip[aria-pressed="true"] {
  border-color: var(--ink);
  background: var(--surface);
}

/* Expense list */

.expense-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.expense-list:empty {
  display: none;
}

.expense {
  border-top: 1px solid var(--line);
}

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

.expense-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.875rem 1rem;
  border: 0;
  background: none;
  text-align: left;
}

button.expense-row:hover {
  background: var(--cream);
}

button.expense-row:focus-visible {
  outline-offset: -3px;
}

.expense-main {
  min-width: 0;
}

.expense-desc {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 700;
}

.expense-meta {
  display: block;
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

.expense-amount {
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.expense.is-new {
  animation: pop 360ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes pop {
  from {
    transform: scale(0.94);
    background: var(--cream);
  }
  to {
    transform: scale(1);
  }
}

.empty {
  margin: 2rem 0;
  text-align: center;
  font-weight: 700;
  color: var(--ink-soft);
}

.fab {
  position: fixed;
  right: max(1.25rem, calc(50vw - 15rem + 1.25rem));
  bottom: calc(1.25rem + env(safe-area-inset-bottom));
  display: grid;
  place-items: center;
  width: 4rem;
  height: 4rem;
  border: 3px solid var(--surface);
  border-radius: 50%;
  background: var(--me);
  color: var(--ink);
  box-shadow: var(--shadow);
  transition: transform 120ms ease;
}

.fab:active {
  transform: scale(0.94);
}

/* Add / edit sheet */

dialog {
  padding: 0;
  border: 0;
  color: var(--ink);
}

dialog::backdrop {
  background: rgb(59 51 46 / 0.35);
}

.sheet {
  width: min(100%, 30rem);
  max-width: 100%;
  max-height: 100dvh;
  margin: auto auto 0;
  border-radius: 24px 24px 0 0;
  background: var(--cream);
}

.sheet[open] {
  animation: sheet-in 220ms ease-out;
}

@keyframes sheet-in {
  from {
    transform: translateY(24px);
    opacity: 0;
  }
}

@media (min-width: 40rem) {
  .sheet {
    margin: auto;
    border-radius: 24px;
  }
}

.sheet-body {
  display: grid;
  gap: 1.125rem;
  padding: 1.25rem 1.25rem calc(1.25rem + env(safe-area-inset-bottom));
}

.sheet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sheet-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 900;
}

.amount-field {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.125rem;
  padding: 0.5rem 1rem;
  border: 2px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.amount-field:focus-within {
  border-color: var(--ink);
}

.amount-prefix {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--ink-soft);
}

.amount-field input {
  width: 100%;
  min-width: 0;
  max-width: 11ch;
  padding: 0;
  border: 0;
  background: none;
  font-size: 2.5rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.amount-field input:focus-visible {
  outline: none;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.segment {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-weight: 800;
  cursor: pointer;
}

.segment input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segment:has(input:checked) {
  border-color: var(--ink);
  background: var(--person);
}

.segment:has(input:checked) .badge {
  background: var(--surface);
}

.segment:has(input:focus-visible) {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

.delete-area {
  display: grid;
  justify-items: center;
}

.delete-confirm {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
}

/* Footer links */

.footer-link {
  justify-self: center;
  padding: 0.5rem;
  color: var(--ink-soft);
  font-size: 0.875rem;
  font-weight: 700;
  text-underline-offset: 3px;
}

.home-footer {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}

/* Privacy policy */

.policy {
  width: min(100%, 38rem);
  margin: 0 auto;
  padding: max(1rem, env(safe-area-inset-top)) 1rem 3rem;
}

.policy-back {
  display: inline-block;
  margin-bottom: 1rem;
  padding-left: 0;
}

.policy-note {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0 0 2rem;
  padding: 1.25rem;
  border-radius: var(--radius-card);
  background: var(--eunice);
  box-shadow: var(--shadow);
  font-size: 1.125rem;
  font-weight: 800;
  line-height: 1.4;
}

.policy-note .badge-lg {
  background: var(--surface);
  box-shadow: none;
}

.policy h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.2;
}

.policy-meta {
  margin: 0.25rem 0 2rem;
  color: var(--ink-soft);
  font-weight: 600;
}

.policy h2 {
  margin: 2rem 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 900;
}

.policy p,
.policy li {
  max-width: 65ch;
}

.policy p {
  margin: 0 0 1rem;
}

.policy ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.policy li {
  margin-bottom: 0.625rem;
}

.policy code {
  padding: 0.1em 0.35em;
  border-radius: 6px;
  background: var(--line);
  font-size: 0.9em;
}

/* CSV import */

.import-open {
  justify-self: center;
}

.sheet-wide {
  width: min(100%, 40rem);
}

.import-body {
  gap: 1rem;
  padding-bottom: 0;
}

.import-pick {
  display: grid;
  gap: 1rem;
  padding-bottom: calc(1.25rem + env(safe-area-inset-bottom));
}

.import-privacy {
  margin: 0;
  color: var(--ink-soft);
}

.file-btn {
  position: relative;
}

.file-btn:has(input:focus-visible) {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

.import-review {
  display: grid;
  gap: 1rem;
}

.import-summary {
  margin: 0;
  font-weight: 700;
}

.import-summary .link-btn {
  padding: 0;
}

.import-mapping {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: var(--radius-card);
  background: var(--surface);
}

.import-split,
.import-range {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9375rem;
  cursor: pointer;
}

.check input,
.import-check input {
  width: 1.25rem;
  height: 1.25rem;
  margin: 0;
  accent-color: var(--ink);
}

.import-toggles {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.import-rows {
  margin: 0;
  padding: 0;
  list-style: none;
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.import-rows:empty {
  display: none;
}

.import-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 1rem;
  border-top: 1px solid var(--line);
}

.import-row:first-child {
  border-top: 0;
}

.import-row.is-selected {
  background: var(--cream);
}

.import-row.is-credit {
  color: var(--ink-soft);
}

.import-row.is-error {
  box-shadow: inset 4px 0 0 var(--ink);
}

.import-check {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  margin: -0.5rem;
  cursor: pointer;
}

.import-main {
  display: grid;
  min-width: 0;
}

.import-desc {
  width: 100%;
  min-width: 0;
  padding: 0.125rem 0.375rem;
  margin-left: -0.375rem;
  border: 2px solid transparent;
  border-radius: 8px;
  background: transparent;
  font-weight: 700;
}

.import-desc:hover:not(:disabled),
.import-desc:focus-visible {
  border-color: var(--line);
  background: var(--surface);
  outline: none;
}

.import-desc:focus-visible {
  border-color: var(--ink);
}

.import-meta {
  font-size: 0.8125rem;
  color: var(--ink-soft);
}

.import-row.is-duplicate .import-meta {
  color: var(--ink);
  font-weight: 700;
}

.import-amount {
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.import-skipped {
  color: var(--ink-soft);
  font-size: 0.875rem;
}

.import-skipped summary {
  font-weight: 700;
  cursor: pointer;
}

.import-skipped ul {
  margin: 0.5rem 0 0;
  padding-left: 1.25rem;
}

.import-footer {
  position: sticky;
  bottom: 0;
  display: grid;
  gap: 0.5rem;
  margin: 0 -1.25rem;
  padding: 0.75rem 1.25rem calc(1.25rem + env(safe-area-inset-bottom));
  background: var(--cream);
  box-shadow: 0 -8px 16px rgb(255 248 240 / 0.9);
}

/* Confirm dialog */

.confirm {
  width: min(calc(100% - 2rem), 22rem);
  border-radius: 24px;
  background: var(--cream);
}

.confirm-body {
  display: grid;
  gap: 0.5rem;
  padding: 1.5rem;
  text-align: center;
}

.confirm-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 900;
}

.confirm-text {
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
}

.confirm-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

/* Toast */

.toast {
  position: fixed;
  left: 50%;
  top: calc(1rem + env(safe-area-inset-top));
  translate: -50% -150%;
  padding: 0.625rem 1.25rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--cream);
  font-weight: 800;
  box-shadow: var(--shadow);
  opacity: 0;
  transition:
    translate 240ms cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 200ms ease;
  pointer-events: none;
}

.toast.is-visible {
  translate: -50% 0;
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    /* biome-ignore lint/complexity/noImportantStyles: reduced motion must override every component */
    animation: none !important;
    /* biome-ignore lint/complexity/noImportantStyles: reduced motion must override every component */
    transition: none !important;
  }
}