:root {
  color-scheme: light dark;
  --bg: #111;
  --fg: #f5f5f5;
  --accent: #ffcc00;
  --muted: #666;
  --card-bg: #1e1e1e;
  --positive: #3ddc80;
  --negative: #ff5d5d;
  --border: #2b2b2b;
  --font-base: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f5f5;
    --fg: #111;
    --accent: #1f7aed;
    --muted: #5c5c5c;
    --card-bg: #ffffff;
    --border: #d8d8d8;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  font-family: var(--font-base);
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
}

body {
  display: flex;
  justify-content: center;
  padding: 0;
}

.hidden {
  display: none !important;
}

.app-shell {
  width: min(420px, 100vw);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.admin-console {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 16px;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.branding .app-name {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
}

.branding .app-subtitle {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 4px;
  letter-spacing: 0.04em;
}

.status-stack {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.icon-button.hamburger {
  font-size: 1.2rem;
  padding: 6px 8px;
}

.status-stack #current-time {
  font-size: 0.9rem;
}

.status-stack .ghost-button {
  margin-top: 8px;
  width: 100%;
}

.auth-controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
  text-align: right;
}

.auth-user {
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.info-banner {
  padding: 10px 16px;
  background: var(--accent);
  color: #000;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  border-bottom: 1px solid #000;
}

.info-banner.hidden {
  display: none;
}

.status-pill {
  display: inline-block;
  margin-top: 6px;
  padding: 2px 8px;
  border-radius: 0;
  background: var(--negative);
  color: #fff;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.status-pill.hidden {
  display: none;
}

.session-toolbar {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  align-items: center;
}

.session-current {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

#active-session-label {
  font-size: 1rem;
  font-weight: 700;
}

.input-set.compact {
  flex: 1 1 160px;
  min-width: 0;
}

.finance-panel-shelf {
  display: none;
}

.finance-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px 16px 4px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.finance-header {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}

.finance-header-actions {
  display: flex;
  gap: 8px;
  margin-left: auto;
  flex-wrap: wrap;
}

.finance-header-actions .ghost-button {
  flex: 1 1 auto;
  min-width: 140px;
}

.finance-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
}

.finance-card {
  border: 1px solid var(--border);
  background: var(--card-bg);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.finance-card .label {
  font-size: 0.65rem;
  color: var(--muted);
}

.finance-card strong {
  font-size: 1rem;
  font-weight: 600;
}

.finance-card .meta {
  font-size: 0.7rem;
  color: var(--muted);
}

.finance-card.positive strong {
  color: var(--positive);
}

.finance-card.negative strong {
  color: var(--negative);
}

.finance-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.finance-status {
  color: var(--muted);
}

.finance-status.error {
  color: var(--negative);
}

.session-actions {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.session-actions .ghost-button {
  flex: 1 1 auto;
  min-width: 140px;
}

.session-modal {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.session-modal-section h3 {
  margin: 0 0 8px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.session-modal-intro {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.session-preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.session-preset {
  border: 1px solid var(--border);
  background: var(--card-bg);
  padding: 12px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.session-preset:focus,
.session-preset:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.session-preset:disabled {
  opacity: 0.6;
  cursor: wait;
}

.session-preset-label {
  font-size: 1rem;
  font-weight: 600;
}

.session-preset-time {
  font-size: 0.85rem;
  color: var(--muted);
}

.session-divider {
  border: none;
  height: 1px;
  background: var(--border);
}

.session-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.session-form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.session-form-group textarea,
.session-form-group input {
  width: 100%;
}

.session-status {
  margin: 0;
  font-size: 0.85rem;
  color: var(--negative);
}

.input-set {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 140px;
}

.input-label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.input-control {
  background: var(--card-bg);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 8px 10px;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.fare-chip {
  padding: 8px 12px;
  border: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
  background: var(--card-bg);
}

.ghost-button {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 8px 12px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ghost-button[aria-label="Create session"] {
  width: 36px;
  height: 36px;
  padding: 0;
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.rider-panel {
  flex: 1;
  padding: 16px;
}

.rider-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.rider-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: inherit;
  padding: 16px;
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  min-height: 100px;
  transition: transform 120ms ease, border-color 120ms ease;
}

.rider-card:focus-visible,
.rider-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.rider-name {
  font-size: 1rem;
  font-weight: 600;
}

.rider-balance {
  font-size: 0.9rem;
  color: var(--muted);
}

.rider-balance.owe {
  color: var(--negative);
}

.rider-balance.credit {
  color: var(--positive);
}

.empty-state {
  width: 100%;
  text-align: center;
  padding: 48px 16px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.action-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
  padding: 12px 16px 24px;
  border-top: 1px solid var(--border);
}

.action-button {
  background: var(--card-bg);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 12px 8px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.action-button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #000;
  padding: 12px 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  border: 1px solid #000;
}

.toast[hidden] {
  display: none;
}

.self-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px;
}

.self-summary {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  padding: 16px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.self-name {
  font-size: 1.1rem;
  font-weight: 600;
}

.self-balance-block {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.self-label {
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.self-balance {
  font-size: 1.4rem;
  font-weight: 600;
}

.self-balance.owe {
  color: var(--negative);
}

.self-balance.credit {
  color: var(--positive);
}

.self-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.self-activity {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.self-activity-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.self-activity-header h2 {
  margin: 0;
  font-size: 0.85rem;
  font-weight: 700;
}

.self-status {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-size: 0.75rem;
}

.self-status.error {
  color: var(--negative);
}

.self-status.empty {
  color: var(--muted);
}

.activity-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.activity-item {
  border: 1px solid var(--border);
  background: var(--card-bg);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.activity-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.activity-type {
  font-size: 0.75rem;
  color: var(--muted);
}

.activity-amount {
  font-size: 1rem;
  font-weight: 600;
}

.activity-amount.owe {
  color: var(--negative);
}

.activity-amount.credit {
  color: var(--positive);
}

.activity-meta {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.activity-note {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-backdrop.hidden {
  display: none;
}

.modal {
  width: min(420px, 90vw);
  max-height: 80vh;
  background: var(--card-bg);
  border: 2px solid var(--accent);
  color: var(--fg);
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.modal-body {
  padding: 12px 16px 16px;
  overflow-y: auto;
  font-size: 0.85rem;
}

.icon-button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 4px 8px;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
}

.audit-filters {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}

.audit-filter-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.audit-select {
  flex: 1 1 160px;
  min-width: 0;
  background: var(--card-bg);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
}

.audit-actions {
  display: flex;
  gap: 8px;
}

.audit-actions button {
  flex: 1;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.7rem;
  cursor: pointer;
}

.audit-actions button.primary {
  border-color: var(--accent);
  color: var(--accent);
}

.audit-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.audit-item {
  border: 1px solid var(--border);
  padding: 8px 10px;
  display: grid;
  row-gap: 4px;
}

.audit-item .meta {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.audit-item .message {
  font-size: 0.85rem;
}

.modal-loading {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.audit-empty {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

body.custom-fare-mode .app-shell {
  box-shadow: 0 0 0 3px var(--accent) inset;
}

.rider-manager {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rider-manager-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.rider-manager-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rider-manager-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.rider-manager-row .details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rider-manager-row .details .meta {
  font-size: 0.7rem;
  color: var(--muted);
}

.rider-manager-empty {
  border: 1px dashed var(--border);
  padding: 16px;
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.manager-actions {
  display: flex;
  gap: 6px;
}

.manager-actions button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 6px 8px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.manager-actions button.primary {
  border-color: var(--accent);
  color: var(--accent);
}

.rider-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rider-form .field-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rider-form .field-group input,
.rider-form .field-group select,
.rider-form .field-group textarea {
  background: var(--card-bg);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 8px 10px;
  font-size: 0.85rem;
}

.rider-form .field-group textarea {
  min-height: 64px;
  resize: vertical;
}

.rider-menu {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rider-menu-search {
  width: 100%;
  background: var(--card-bg);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rider-menu-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 360px;
  overflow-y: auto;
}

.rider-menu-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--card-bg);
  color: var(--fg);
}

.rider-menu-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.rider-menu-item .details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rider-menu-item .details .balance {
  font-size: 0.75rem;
  color: var(--muted);
}

.rider-menu-item .details .balance.owe {
  color: var(--negative);
}

.rider-menu-item .details .balance.credit {
  color: var(--positive);
}

.rider-menu-actions {
  display: flex;
  gap: 6px;
}

.rider-menu-actions button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  padding: 6px 8px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rider-menu-actions button.primary {
  border-color: var(--accent);
  color: var(--accent);
}

.rider-menu-payment {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}

.rider-menu-payment .field-row {
  display: flex;
  gap: 6px;
}

.rider-menu-payment .field-row input {
  flex: 1;
}

.rider-menu-payment input,
.rider-menu-payment textarea {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 6px 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
}

.rider-menu-payment textarea {
  resize: vertical;
  min-height: 42px;
}

.rider-menu-payment-actions {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
}

.rider-menu-payment-actions button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  padding: 6px 10px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rider-menu-payment-actions .primary {
  border-color: var(--accent);
  color: var(--accent);
}

.rider-menu-payment-status {
  font-size: 0.65rem;
  color: var(--negative);
  letter-spacing: 0.08em;
}

.rider-menu-meta {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.rider-menu-empty {
  border: 1px dashed var(--border);
  padding: 16px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.rider-form .checkbox-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.rider-form .checkbox-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.rider-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.rider-form-actions button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  padding: 8px 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rider-form-actions .primary {
  border-color: var(--accent);
  color: var(--accent);
}

body.custom-fare-mode .rider-card {
  border-color: var(--accent);
}

button {
  cursor: pointer;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

@media (max-width: 420px) {
  .session-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .input-set,
  .fare-chip,
  .ghost-button {
    width: 100%;
  }

  .finance-header {
    flex-direction: column;
    align-items: stretch;
  }

  .finance-header-actions {
    width: 100%;
    margin-left: 0;
  }

  .finance-header-actions .ghost-button {
    flex: 1 1 45%;
    min-width: 0;
  }

  .finance-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .rider-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  .self-panel {
    padding: 12px;
  }

  .self-meta {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }

  .self-activity-header {
    flex-direction: column;
    align-items: stretch;
  }
}