/* ---------------------------------------------------------------
   Receipt Namer -- design tokens
   Direction: a dark "desk" the paperwork sits on, with each receipt
   rendered as a paper ticket stub. IBM Plex Mono carries dates,
   amounts and filenames (the ledger data); IBM Plex Sans carries
   UI chrome and labels.
   ----------------------------------------------------------------*/
:root {
  --shell-bg: #14181d;
  --shell-bg-alt: #1b2028;
  --shell-line: #2a313b;
  --shell-text: #d9dde2;
  --shell-text-soft: #8a9198;

  --paper: #f7f4ec;
  --paper-line: #e3ddc9;
  --ink-strong: #201c16;
  --ink-soft: #625c4e;
  --ink-faint: #9b9483;

  --accent-stamp: #c4472d;
  --accent-stamp-dark: #a23a24;
  --accent-gold: #b08d3f;
  --ok-green: #3f7a5c;
  --warn-amber: #ad7d1f;
  --warn-bg: #fbf0dc;

  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --font-sans: "IBM Plex Sans", -apple-system, "Segoe UI", Roboto, sans-serif;

  --radius: 10px;
  --shadow-card: 0 1px 2px rgba(0,0,0,.35), 0 8px 24px -12px rgba(0,0,0,.5);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--shell-bg);
  color: var(--shell-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
}

body {
  padding-bottom: 96px; /* leave room for the sticky action bar */
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

::selection { background: var(--accent-stamp); color: #fff; }

a { color: inherit; }

button, input, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ------------------------- Header ------------------------- */

.shell-header {
  background: var(--shell-bg-alt);
  border-bottom: 1px solid var(--shell-line);
}
.shell-header__inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand__mark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--shell-bg);
  background: var(--accent-gold);
  border-radius: 6px;
  padding: 8px 9px;
}
.brand__text h1 {
  font-size: 18px;
  margin: 0;
  font-weight: 600;
  letter-spacing: .01em;
}
.brand__text p {
  margin: 2px 0 0;
  font-size: 12.5px;
  color: var(--shell-text-soft);
}
.policy-link {
  font-size: 13px;
  text-decoration: none;
  color: var(--shell-text-soft);
  border: 1px solid var(--shell-line);
  border-radius: 20px;
  padding: 7px 14px;
  white-space: nowrap;
}
.policy-link:hover { border-color: var(--accent-gold); color: var(--shell-text); }

.policy-panel {
  background: var(--shell-bg-alt);
  border-bottom: 1px solid var(--shell-line);
}
.policy-panel__inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 4px 24px 22px;
}
.policy-panel h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent-gold);
  margin: 0 0 10px;
}
.policy-panel code {
  font-family: var(--font-mono);
  background: rgba(255,255,255,.06);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}
.policy-panel ul {
  margin: 10px 0 0;
  padding-left: 20px;
  font-size: 13.5px;
  color: var(--shell-text-soft);
}
.policy-panel li { margin-bottom: 6px; }

/* ------------------------- Layout ------------------------- */

.page {
  max-width: 900px;
  margin: 0 auto;
  padding: 28px 24px 40px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.card {
  background: var(--paper);
  color: var(--ink-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 22px 24px 24px;
}
.card__title {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
  color: var(--ink-soft);
  margin: 0 0 16px;
}

.auth-page {
  max-width: 420px;
  padding-top: 72px;
}
.auth-card { padding: 28px 28px 30px; }
.auth-intro {
  margin: -6px 0 20px;
  font-size: 13px;
  color: var(--ink-soft);
}
.auth-error {
  background: var(--warn-bg);
  color: var(--accent-stamp-dark);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13.5px;
  margin: -6px 0 18px;
}
.auth-warning-card {
  padding: 16px 20px;
  border: 1px solid var(--warn-amber);
}
.auth-warning {
  margin: 0;
  font-size: 13.5px;
  color: var(--warn-amber);
  line-height: 1.5;
}
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.auth-form input {
  background: #fff;
  border: 1px solid var(--paper-line);
  border-radius: 7px;
  padding: 10px 12px;
  font-size: 15px;
  color: var(--ink-strong);
  font-family: var(--font-sans);
}
.auth-form input:focus { border-color: var(--accent-gold); }
.auth-submit { margin-top: 6px; width: 100%; }
.auth-footer-link {
  margin: 18px 0 0;
  font-size: 13px;
  text-align: center;
}
.auth-footer-link a { color: var(--ink-soft); }

.invite-result {
  background: rgba(63,122,92,.08);
  border: 1px solid rgba(63,122,92,.3);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.invite-result input {
  background: #fff;
  border: 1px solid var(--paper-line);
  border-radius: 7px;
  padding: 9px 11px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-strong);
  width: 100%;
}
.invite-hint {
  margin: 0;
  font-size: 12px;
  color: var(--ink-soft);
}

/* ------------------------- Form fields ------------------------- */

.field { display: flex; flex-direction: column; gap: 6px; }
.field__label {
  font-size: 12px;
  color: var(--ink-soft);
  font-weight: 500;
}
.field input[type="text"],
.field input[type="number"],
.field input[type="date"],
.field select {
  background: #fff;
  border: 1px solid var(--paper-line);
  border-radius: 7px;
  padding: 9px 10px;
  font-size: 14px;
  color: var(--ink-strong);
  font-family: var(--font-mono);
}
.field select { font-family: var(--font-sans); }
.field input::placeholder { color: var(--ink-faint); font-family: var(--font-sans); }
.field input:focus, .field select:focus { border-color: var(--accent-gold); }

.setup-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 18px;
}
@media (max-width: 640px) {
  .setup-grid { grid-template-columns: 1fr; }
}

.field--toggle { justify-content: flex-end; }
.toggle { display: flex; align-items: center; gap: 10px; cursor: pointer; height: 38px; }
.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle__track {
  width: 38px; height: 22px;
  background: var(--paper-line);
  border-radius: 12px;
  position: relative;
  flex: none;
  transition: background .15s ease;
}
.toggle__thumb {
  position: absolute; top: 2px; left: 2px;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,.3);
  transition: transform .15s ease;
}
.toggle input:checked + .toggle__track { background: var(--ok-green); }
.toggle input:checked + .toggle__track .toggle__thumb { transform: translateX(16px); }
.toggle__caption { font-size: 13px; color: var(--ink-soft); }

/* ------------------------- Dropzone ------------------------- */

.dropzone {
  border: 2px dashed var(--paper-line);
  border-radius: var(--radius);
  padding: 34px 20px;
  text-align: center;
  transition: border-color .15s ease, background .15s ease;
}
.dropzone.is-dragover {
  border-color: var(--accent-stamp);
  background: rgba(196,71,45,.06);
}
.dropzone__icon {
  font-size: 22px;
  color: var(--accent-gold);
  margin-bottom: 6px;
}
.dropzone__label { margin: 0; font-weight: 500; }
.dropzone__sub { margin: 4px 0 18px; font-size: 13px; color: var(--ink-soft); }
.dropzone__actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.btn {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  border-radius: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn--secondary {
  background: #fff;
  border-color: var(--paper-line);
  color: var(--ink-strong);
}
.btn--secondary:hover { border-color: var(--accent-gold); }
.btn--primary {
  background: var(--accent-stamp);
  color: #fff;
}
.btn--primary:hover { background: var(--accent-stamp-dark); }
.btn--primary:disabled { background: var(--ink-faint); cursor: not-allowed; }

.upload-status {
  margin: 16px 2px 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

/* ------------------------- Mileage card ------------------------- */

.card__title-optional {
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  color: var(--ink-faint);
}
.mileage-intro {
  margin: -8px 0 18px;
  font-size: 13px;
  color: var(--ink-soft);
}
.mileage-settings-grid,
.mileage-generate-grid {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr 2fr;
  gap: 14px;
}
.mileage-generate-grid {
  grid-template-columns: 1fr 1fr auto;
  align-items: end;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--paper-line);
}
@media (max-width: 640px) {
  .mileage-settings-grid { grid-template-columns: 1fr 1fr; }
  .mileage-generate-grid { grid-template-columns: 1fr 1fr; }
  .mileage-generate-grid .btn { grid-column: span 2; }
}
.mileage-settings-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
}
.mileage-status {
  margin: 0;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--ink-soft);
}
.mileage-status.is-success { color: var(--ok-green); }
.mileage-status.is-warning { color: var(--warn-amber); }
.mileage-status.is-error { color: var(--accent-stamp); }

.tar-upload-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.tar-file-name {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-soft);
}
.tar-generate-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: 14px;
  align-items: end;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--paper-line);
}
@media (max-width: 640px) {
  .tar-generate-grid { grid-template-columns: 1fr 1fr; }
  .tar-generate-grid .btn { grid-column: span 2; }
}

.mileage-grid {
  display: none;
  grid-template-columns: 1fr;
  max-width: 200px;
  gap: 14px;
  background: rgba(176,141,63,.08);
  border: 1px solid rgba(176,141,63,.25);
  border-radius: 8px;
  padding: 14px;
}
.mileage-grid.is-visible { display: grid; }

.car-rental-grid {
  display: none;
  grid-template-columns: 1fr 1fr;
  max-width: 420px;
  gap: 14px;
  background: rgba(176,141,63,.08);
  border: 1px solid rgba(176,141,63,.25);
  border-radius: 8px;
  padding: 14px;
}
.car-rental-grid.is-visible { display: grid; }
.computed-field { display: flex; flex-direction: column; gap: 6px; }
.computed-value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-strong);
}

/* ------------------------- Results ------------------------- */

.results__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 0 2px;
}
.results__header .card__title { margin: 0; }
.results__count { font-size: 13px; color: var(--shell-text-soft); margin: 0; }

.receipt-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.receipt-card {
  position: relative;
  display: flex;
  background: var(--paper);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: visible;
  margin-left: 8px;
}
.receipt-card::before,
.receipt-card::after {
  content: '';
  position: absolute;
  left: -9px;
  width: 18px;
  height: 18px;
  background: var(--shell-bg);
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px var(--shell-line);
}
.receipt-card::before { top: 22px; }
.receipt-card::after { bottom: 22px; }

.receipt-card__stub {
  flex: none;
  width: 148px;
  border-right: 2px dashed var(--paper-line);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.stamp {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 10.5px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--accent-stamp);
  border: 2px solid var(--accent-stamp);
  border-radius: 6px;
  padding: 5px 8px;
  text-align: center;
  transform: rotate(-3deg);
  line-height: 1.2;
}
.thumb {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: 6px;
  background: #fff repeat center / 40px;
  border: 1px solid var(--paper-line);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
  overflow: hidden;
}

.receipt-card__body {
  flex: 1;
  min-width: 0;
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.receipt-card__row--top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.orig-name {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.icon-btn {
  background: none;
  border: none;
  color: var(--ink-faint);
  cursor: pointer;
  font-size: 14px;
  padding: 4px 6px;
  border-radius: 6px;
  flex: none;
}
.icon-btn:hover { color: var(--accent-stamp); background: rgba(196,71,45,.08); }

.field-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.field-grid .field { min-width: 0; }
@media (max-width: 720px) {
  .field-grid { grid-template-columns: 1fr 1fr; }
}
.f-desc-field { grid-column: span 2; }
.f-range-toggle-field {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}
.f-range-toggle-field .field__label { order: 2; }
.f-range-toggle-field input { order: 1; width: 16px; height: 16px; }

.lodging-grid {
  display: none;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  background: rgba(176,141,63,.08);
  border: 1px solid rgba(176,141,63,.25);
  border-radius: 8px;
  padding: 14px;
}
.lodging-grid.is-visible { display: grid; }
.lodging-grid .field input { background: #fff; }
@media (max-width: 640px) {
  .lodging-grid { grid-template-columns: 1fr 1fr; }
}

.warnings {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.warnings:empty { display: none; }
.warnings li {
  font-size: 12.5px;
  color: var(--warn-amber);
  background: var(--warn-bg);
  border-radius: 6px;
  padding: 6px 10px;
}
.warnings li::before { content: "⚠ "; }

.filename-preview {
  border-top: 1px solid var(--paper-line);
  padding-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.filename-preview__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-faint);
}
.filename-preview__value {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--ok-green);
  word-break: break-all;
}

@media (max-width: 560px) {
  .receipt-card { flex-direction: column; }
  .receipt-card__stub {
    width: auto;
    flex-direction: row;
    border-right: none;
    border-bottom: 2px dashed var(--paper-line);
  }
  .thumb { width: 70px; aspect-ratio: 3/4; flex: none; }
}

/* ------------------------- Action bar ------------------------- */

.action-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: var(--shell-bg-alt);
  border-top: 1px solid var(--shell-line);
  padding: 14px 24px;
  z-index: 20;
}
.action-bar__inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.action-bar__summary {
  font-size: 13px;
  color: var(--shell-text-soft);
  font-family: var(--font-mono);
}