/* ============================================================
   banana/splitt — stylesheet
   ============================================================ */

/* ---- Reset / base ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --yellow:      #FBBF24;
  --yellow-dark: #D97706;
  --yellow-light:#FEF3C7;
  --green:       #10B981;
  --green-light: #D1FAE5;
  --red:         #EF4444;
  --red-light:   #FEE2E2;
  --blue:        #3B82F6;
  --blue-light:  #DBEAFE;

  --bg:          #F9FAFB;
  --surface:     #FFFFFF;
  --border:      #E5E7EB;
  --text:        #111827;
  --text-muted:  #6B7280;
  --radius:      12px;
  --radius-sm:   8px;
  --shadow:      0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:   0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:   0 10px 15px rgba(0,0,0,.10), 0 4px 6px rgba(0,0,0,.05);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ---- Utility ---------------------------------------------- */
.hidden { display: none !important; }

/* ---- Header ----------------------------------------------- */
.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: .4rem;
  cursor: pointer;
  text-decoration: none;
  user-select: none;
}
.logo-icon { font-size: 1.6rem; line-height: 1; }
.logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -.5px;
}
.logo-dot { color: var(--yellow-dark); }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .85rem;
  color: var(--text-muted);
  flex: 1;
}
.breadcrumb a {
  color: var(--yellow-dark);
  text-decoration: none;
  font-weight: 500;
}
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { color: var(--text-muted); }

/* ---- Main -------------------------------------------------- */
main#main-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

/* ---- Pages ------------------------------------------------- */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}
.page-header h1 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text);
}
.trip-subtitle { color: var(--text-muted); font-size: .9rem; margin-top: .15rem; }

/* ---- Buttons ----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .55rem 1.1rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  font-size: .875rem;
  font-weight: 600;
  transition: background .15s, transform .1s, box-shadow .15s;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-icon { font-size: 1rem; line-height: 1; }
.btn-sm { padding: .35rem .75rem; font-size: .8rem; }

.btn-primary { background: var(--yellow); color: #78350f; }
.btn-primary:hover { background: var(--yellow-dark); color: #fff; }

.btn-secondary { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg); }

.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #dc2626; }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: .35rem .6rem;
}
.btn-ghost:hover { color: var(--red); background: var(--red-light); }

/* ---- Trip grid -------------------------------------------- */
.trips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.1rem;
}
.trip-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: .9rem;
  cursor: pointer;
  transition: box-shadow .2s, transform .15s;
}
.trip-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.trip-card-header { display: flex; align-items: flex-start; gap: .75rem; }
.trip-card-emoji { font-size: 2.2rem; line-height: 1; }
.trip-card-info { flex: 1; min-width: 0; }
.trip-card-name {
  font-size: 1rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.trip-card-desc {
  font-size: .8rem;
  color: var(--text-muted);
  margin-top: .1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.trip-card-stats { display: flex; gap: 1rem; }
.stat { display: flex; flex-direction: column; align-items: center; flex: 1; }
.stat-value { font-size: 1.1rem; font-weight: 700; }
.stat-label { font-size: .7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }
.trip-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

/* ---- Tabs -------------------------------------------------- */
.tabs {
  display: flex;
  gap: .25rem;
  border-bottom: 2px solid var(--border);
  margin-bottom: 1.5rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  background: none;
  border: none;
  cursor: pointer;
  padding: .65rem 1.1rem;
  font-size: .875rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color .15s, border-color .15s;
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--yellow-dark); border-bottom-color: var(--yellow-dark); }

.tab-panel { animation: fadeIn .2s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ---- Expenses list ---------------------------------------- */
.expenses-list { display: flex; flex-direction: column; gap: .75rem; }
.expense-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow);
  transition: box-shadow .15s;
}
.expense-item:hover { box-shadow: var(--shadow-md); }
.expense-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--yellow-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.expense-body { flex: 1; min-width: 0; }
.expense-desc { font-weight: 600; font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.expense-meta { font-size: .78rem; color: var(--text-muted); margin-top: .1rem; }
.expense-amount { font-size: 1.15rem; font-weight: 800; text-align: right; min-width: 70px; }
.expense-amount .conversion-note { display: block; font-size: .75rem; font-weight: 500; color: var(--text-muted); }
.expense-actions { display: flex; gap: .25rem; }

/* ---- Dashboard cards -------------------------------------- */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .75rem;
  margin-bottom: 2rem;
}
@media (max-width: 600px) {
  .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
}
.dash-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  text-align: center;
  box-shadow: var(--shadow);
}
.dash-card-label {
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: .3rem;
}
.dash-card-value {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
}
.dash-total .dash-card-value { color: var(--yellow-dark); }
.dash-avg .dash-card-value { color: var(--blue); }

/* ---- Pie chart -------------------------------------------- */
.chart-section { margin-bottom: 2rem; }
.chart-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .75rem;
  flex-wrap: wrap;
  gap: .5rem;
}
.chart-section-header .section-title { margin-bottom: 0; }
.chart-section-controls {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.chart-toggles {
  display: flex;
  gap: .25rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .2rem;
}
.chart-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: .35rem .85rem;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: calc(var(--radius-sm) - 2px);
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.chart-toggle:hover { color: var(--text); }
.chart-toggle.active { background: var(--surface); color: var(--yellow-dark); box-shadow: var(--shadow); }
.chart-container {
  display: flex;
  align-items: center;
  gap: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
@media (max-width: 600px) {
  .chart-container { flex-direction: column; }
}
#pie-chart { flex-shrink: 0; }
.chart-legend { flex: 1; display: flex; flex-direction: column; gap: .5rem; }
.bar-chart-container { flex-direction: column; align-items: flex-start; }
.bar-chart-wrap { width: 100%; overflow-x: auto; }
#bar-chart { display: block; max-width: 100%; }
.chart-export-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: .9rem;
  padding: .2rem .5rem;
  color: var(--text-muted);
  transition: background .15s, color .15s;
  flex-shrink: 0;
}
.chart-export-btn:hover { background: var(--bg); color: var(--text); }
.legend-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .88rem;
}
.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}
.legend-name { flex: 1; font-weight: 600; }
.legend-value { font-weight: 700; min-width: 70px; text-align: right; }
.legend-pct {
  font-size: .78rem;
  color: var(--text-muted);
  font-weight: 600;
  min-width: 42px;
  text-align: right;
}

/* ---- Balances --------------------------------------------- */
.balances-section, .settlements-section { margin-bottom: 2rem; }
.share-section { margin-top: 1.5rem; text-align: center; display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }
.section-title { font-size: 1rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }
.balances-list { display: flex; flex-direction: column; gap: .6rem; }
.balance-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .85rem 1.1rem;
  box-shadow: var(--shadow);
}
.balance-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .9rem;
  flex-shrink: 0;
}
.balance-name { flex: 1; font-weight: 600; }
.balance-amount { font-weight: 700; font-size: .95rem; }
.balance-label { font-size: .75rem; margin-left: .3rem; }
.positive .balance-avatar { background: var(--green-light); color: #065f46; }
.positive .balance-amount { color: var(--green); }
.negative .balance-avatar { background: var(--red-light); color: #991b1b; }
.negative .balance-amount { color: var(--red); }
.neutral .balance-avatar { background: var(--bg); color: var(--text-muted); }
.neutral .balance-amount { color: var(--text-muted); }

.settlements-list { display: flex; flex-direction: column; gap: .6rem; }
.settlement-item {
  background: var(--blue-light);
  border: 1px solid #BFDBFE;
  border-radius: var(--radius);
  padding: .85rem 1.1rem;
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .88rem;
  font-weight: 500;
  box-shadow: var(--shadow);
}
.settlement-from { font-weight: 700; color: var(--red); }
.settlement-to   { font-weight: 700; color: var(--green); }
.settlement-arrow { color: var(--blue); font-size: 1rem; }
.settlement-amount { margin-left: auto; font-weight: 800; color: var(--blue); font-size: .95rem; }
.settlement-remind-btn { margin-left: .5rem; flex-shrink: 0; }

/* ---- Members ---------------------------------------------- */
.members-toolbar { margin-bottom: 1rem; }
.members-list { display: flex; flex-direction: column; gap: .6rem; }
.member-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .85rem 1.1rem;
  box-shadow: var(--shadow);
}
.member-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--yellow-light);
  color: #78350f;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .9rem;
  flex-shrink: 0;
}
.member-name { flex: 1; font-weight: 600; }
.member-actions { display: flex; gap: .25rem; }

/* ---- Modal ------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  backdrop-filter: blur(2px);
  animation: overlayIn .15s ease;
}
@keyframes overlayIn { from { opacity: 0; } to { opacity: 1; } }
.modal-box {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1.75rem;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: modalIn .2s cubic-bezier(.34,1.56,.64,1);
}
@keyframes modalIn { from { opacity: 0; transform: scale(.92) translateY(10px); } to { opacity: 1; transform: none; } }
.modal-close {
  position: absolute;
  top: .85rem;
  right: .85rem;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
  padding: .25rem;
  border-radius: 50%;
}
.modal-close:hover { background: var(--bg); color: var(--text); }
.modal-title { font-size: 1.2rem; font-weight: 800; margin-bottom: 1.25rem; }
.reminder-subtitle { font-size: .85rem; color: var(--text-muted); margin-bottom: 1rem; margin-top: -.75rem; }
.reminder-textarea { width: 100%; font-size: .9rem; line-height: 1.5; resize: vertical; min-height: 110px; }

/* ---- Forms ------------------------------------------------- */
.form-group { display: flex; flex-direction: column; gap: .35rem; margin-bottom: 1rem; }
.form-group label { font-size: .82rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .4px; }
.form-group input,
.form-group select,
.form-group textarea {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .6rem .85rem;
  font-size: .9rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--yellow-dark);
  box-shadow: 0 0 0 3px rgba(217,119,6,.15);
}
.form-group textarea { resize: vertical; min-height: 60px; }

.split-checkboxes {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.split-checkbox-label {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .4rem .75rem;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  font-size: .85rem;
  font-weight: 500;
  transition: background .15s, border-color .15s;
  user-select: none;
}
.split-checkbox-label input { width: auto; margin: 0; }
.split-checkbox-label:has(input:checked) {
  background: var(--yellow-light);
  border-color: var(--yellow-dark);
  color: #78350f;
}
.split-all-btn {
  font-size: .78rem;
  color: var(--yellow-dark);
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
  padding: 0;
  text-decoration: underline;
}

.split-hint {
  margin-top: .5rem;
  font-size: .8rem;
  color: var(--yellow-dark);
  background: var(--yellow-light);
  border: 1px solid var(--yellow);
  border-radius: var(--radius-sm);
  padding: .4rem .65rem;
  line-height: 1.4;
}

.form-actions {
  display: flex;
  gap: .75rem;
  justify-content: flex-end;
  margin-top: 1.25rem;
}

/* ---- Forecast card ---------------------------------------- */
.forecast-section { margin-bottom: 2rem; }
.forecast-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.forecast-card.forecast-ok   { border-left: 4px solid var(--green); }
.forecast-card.forecast-warn { border-left: 4px solid var(--yellow-dark); }
.forecast-card.forecast-over { border-left: 4px solid var(--red); }
.forecast-header {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  font-size: .93rem;
  font-weight: 500;
  line-height: 1.4;
}
.forecast-icon { font-size: 1.1rem; flex-shrink: 0; }
.forecast-text { flex: 1; }
.forecast-bar-wrap {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.forecast-bar {
  flex: 1;
  height: 10px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}
.forecast-bar-fill {
  height: 100%;
  border-radius: 99px;
  transition: width .4s ease;
}
.forecast-bar-fill.fill-ok   { background: var(--green); }
.forecast-bar-fill.fill-warn { background: linear-gradient(to right, var(--yellow), var(--yellow-dark)); }
.forecast-bar-fill.fill-over { background: var(--red); }
.forecast-bar-label {
  font-size: .78rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 600;
  min-width: 140px;
  text-align: right;
}

/* ---- Form row (side-by-side fields) ----------------------- */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}
@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ---- Page header actions ---------------------------------- */
.page-header-actions {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
}

/* ---- Form warning (duplicate / anomaly detection) --------- */
.form-warning {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  background: var(--yellow-light);
  border: 1.5px solid var(--yellow);
  border-radius: var(--radius-sm);
  padding: .6rem .85rem;
  font-size: .85rem;
  color: #78350f;
  margin-bottom: 1rem;
  line-height: 1.4;
}
.form-warning-text { flex: 1; }
.form-warning-dismiss {
  background: none;
  border: none;
  cursor: pointer;
  color: #92400e;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0;
  flex-shrink: 0;
}
.form-warning-dismiss:hover { color: #78350f; }

/* ---- Empty state ------------------------------------------ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .75rem;
  padding: 3rem 1rem;
  text-align: center;
  color: var(--text-muted);
}
.empty-icon { font-size: 3rem; }
.empty-state h2 { font-size: 1.2rem; font-weight: 700; color: var(--text); }
.empty-state p { font-size: .9rem; max-width: 320px; }

/* ---- Toast ------------------------------------------------- */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  z-index: 2000;
}
.toast {
  background: #1F2937;
  color: #fff;
  padding: .7rem 1.2rem;
  border-radius: 30px;
  font-size: .88rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: toastIn .25s ease, toastOut .25s ease 2.5s forwards;
  max-width: 360px;
  text-align: center;
}
.toast.success { background: var(--green); }
.toast.error   { background: var(--red); }
@keyframes toastIn  { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes toastOut { to   { opacity: 0; transform: translateY(12px); } }

/* ---- Responsive ------------------------------------------- */
@media (max-width: 600px) {
  main#main-content { padding: 1.25rem .75rem 3rem; }
  .page-header { flex-direction: column; align-items: stretch; }
  .page-header .btn { width: 100%; justify-content: center; }
  .trips-grid { grid-template-columns: 1fr; }
  .modal-box { padding: 1.25rem; }
}

/* ---- AI chat bar ------------------------------------------ */
.ai-chat-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}
.ai-chat-header {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .4px;
  margin-bottom: .65rem;
}
.ai-chat-icon { font-size: 1rem; }
.ai-chat-form {
  display: flex;
  gap: .5rem;
}
.ai-chat-input {
  flex: 1;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .6rem .85rem;
  font-size: .9rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color .15s, box-shadow .15s;
}
.ai-chat-input:focus {
  outline: none;
  border-color: var(--yellow-dark);
  box-shadow: 0 0 0 3px rgba(217,119,6,.15);
}
.ai-chat-send { padding: .6rem 1rem; flex-shrink: 0; }
.ai-chat-send:disabled { opacity: .6; cursor: not-allowed; }

.ai-parsed-results {
  display: flex;
  flex-direction: column;
  gap: .65rem;
  margin-top: .75rem;
}

/* ---- AI expense confirmation card ------------------------- */
.ai-expense-card {
  background: var(--yellow-light);
  border: 1.5px solid var(--yellow-dark);
  border-radius: var(--radius);
  padding: .85rem 1rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  animation: fadeIn .2s ease;
}
.ai-expense-card-body { flex: 1; min-width: 0; }
.ai-expense-card-desc {
  font-weight: 700;
  font-size: .9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}
.ai-expense-card-meta {
  font-size: .78rem;
  color: #78350f;
  margin-top: .15rem;
}
.ai-expense-card-amount {
  font-weight: 800;
  font-size: 1.05rem;
  color: #78350f;
  white-space: nowrap;
}
.ai-expense-card-actions { display: flex; gap: .4rem; }
.ai-currency-warning {
  display: inline-block;
  background: #fef3c7;
  border: 1px solid #d97706;
  border-radius: 3px;
  padding: 0 .3rem;
  font-size: .72rem;
  font-weight: 600;
  color: #92400e;
}
@media (max-width: 600px) {
  .ai-chat-form { flex-direction: column; }
  .ai-chat-send { width: 100%; justify-content: center; }
}

/* ---- Auth / Login ----------------------------------------- */
.header-user {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.user-avatar {
  border-radius: 50%;
  vertical-align: middle;
}
.user-name {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-muted);
}
.btn-small {
  padding: .35rem .75rem;
  font-size: .8rem;
}
.btn-logout {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-logout:hover {
  background: var(--red-light);
  color: var(--red);
  border-color: var(--red);
}
.login-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
}
.login-box {
  text-align: center;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  width: 100%;
}
.login-logo {
  font-size: 4rem;
  margin-bottom: .5rem;
}
.login-box h1 {
  margin-bottom: .5rem;
}
.login-box p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}
.btn-github {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  font-size: 1rem;
}