:root {
  --bg: #f6f4f0;
  --text: #2a2733;
  --text-secondary: #7a7580;
  --accent: #5b4b8a;
  --accent-hover: #4a3d73;
  --danger: #c0392b;
  --border: #ddd8e8;
  --unpaid-bg: #fdf8e7;
  --card-shadow: 0 1px 3px rgba(40, 35, 60, .08);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

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

.card {
  background: #fff;
  border-radius: 14px;
  box-shadow: var(--card-shadow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: #fff;
  color: var(--text);
  border-color: #ddd8e8;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-danger {
  background: #fff;
  color: var(--danger);
  border-color: #f0d3ce;
}

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

.btn-block {
  width: 100%;
}

.btn-icon {
  padding: 6px 8px;
  font-size: 16px;
  line-height: 1;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-icon:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-icon.danger:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.btn-icon.cash-on {
  background: #fdf3e0;
  border-color: #e3c98a;
  color: #9a6b00;
}

.checkbox-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 14px;
  cursor: pointer;
}

.checkbox-inline input[type="checkbox"] {
  width: auto;
  margin: 0;
}

/* Inputs */
input, select, textarea {
  font-family: inherit;
  font-size: 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  padding: 9px 12px;
  color: var(--text);
  background: #fff;
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 75, 138, .15);
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 14px 0 6px;
}

label:first-of-type {
  margin-top: 4px;
}

.field-note {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
}

.field-note-bottom {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.form-error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 10px;
}

/* Login screen */
/* The hidden attribute must always win over any display rule below. */
[hidden] {
  display: none !important;
}

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  padding: 32px;
  text-align: center;
}

.login-card h1 {
  margin: 0 0 20px;
  color: var(--accent);
}

.login-card form {
  text-align: left;
}

/* App shell */
.topbar {
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: var(--card-shadow);
}

.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.app-title {
  font-size: 20px;
  margin: 0;
  color: var(--accent);
}

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

.content {
  max-width: 1180px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}

.event-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.event-select {
  flex: 1 1 280px;
  max-width: 420px;
}

/* Summary cards */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.summary-card {
  padding: 16px 18px;
}

.summary-card .label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.summary-card .value {
  font-size: 22px;
  font-weight: 700;
}

.summary-card .sub {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.search-input {
  flex: 1 1 260px;
  max-width: 380px;
}

.last-sync-note {
  font-size: 12px;
  color: var(--text-secondary);
  margin-left: auto;
}

/* Empty state */
.empty-state {
  text-align: center;
  color: var(--text-secondary);
  padding: 60px 20px;
  font-size: 15px;
}

/* Table */
.table-wrap {
  overflow-x: auto;
}

.participants-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.participants-table th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--text-secondary);
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.participants-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #f0eef5;
  font-size: 14px;
  vertical-align: top;
}

.participants-table tr:last-child td {
  border-bottom: none;
}

.participants-table tr.unpaid-row {
  background: var(--unpaid-bg);
}

.money-cell {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.pricing-option {
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.actions-cell {
  display: flex;
  gap: 6px;
  white-space: nowrap;
}

.strike {
  text-decoration: line-through;
  color: var(--text-secondary);
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-paypal {
  background: #e8f0fe;
  color: #1a56db;
}

.badge-stripe {
  background: #efeafd;
  color: #635bff;
}

.badge-manual {
  background: #eef7ee;
  color: #2e7d32;
}

.badge-refunded {
  background: #fdecea;
  color: var(--danger);
  margin-left: 6px;
}

.badge-cash {
  background: #fdf3e0;
  color: #9a6b00;
  margin-top: 4px;
}

/* Mobile cards */
.participants-cards {
  display: none;
  flex-direction: column;
  gap: 12px;
}

.participant-card {
  padding: 14px 16px;
}

.participant-card.unpaid {
  background: var(--unpaid-bg);
}

.participant-card .name {
  font-weight: 700;
  margin-bottom: 4px;
}

.participant-card .line {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.participant-card .payment-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 8px 0 4px;
  font-size: 14px;
}

.participant-card .computed-line {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.participant-card .card-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

@media (max-width: 767px) {
  .table-wrap {
    display: none;
  }

  .participants-cards {
    display: flex;
  }
}

/* Modals */
.modal-overlay[hidden] {
  display: none;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(42, 39, 51, .45);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 16px;
  overflow-y: auto;
  z-index: 100;
}

.modal {
  width: 100%;
  max-width: 520px;
  padding: 28px;
}

.modal h2 {
  margin-top: 0;
  color: var(--text);
}

.modal-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 22px;
}

.modal-actions-right {
  display: flex;
  gap: 10px;
  margin-left: auto;
}

.checkbox-list {
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  margin-top: 8px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 14px;
}

.checkbox-item input {
  width: auto;
}

/* Toasts */
.toast-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 200;
  align-items: center;
}

.toast {
  background: #2a2733;
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .2);
  animation: toast-in .15s ease-out;
}

.toast.toast-error {
  background: var(--danger);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}

@media (max-width: 480px) {
  .modal {
    padding: 20px;
  }
}