:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #1c2733;
  --muted: #6b7a8d;
  --line: #e5eaf0;
  --accent: #0e9f6e;
  --accent-dark: #0b8459;
  --accent-soft: #e6f7f0;
  --amber: #d97706;
  --amber-soft: #fdf3e3;
  --blue: #2563eb;
  --blue-soft: #e8f0fe;
  --danger: #dc2626;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.06), 0 1px 2px rgba(16, 24, 40, 0.04);
}

* { box-sizing: border-box; }

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
}

.hidden { display: none !important; }

button { font-family: inherit; cursor: pointer; }
input, select { font-family: inherit; font-size: 14px; }

/* ---------- Header ---------- */
.app-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0.5px;
}

.subtitle {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

.conn-status {
  font-size: 11px;
  color: var(--muted);
  background: #eef1f5;
  border-radius: 20px;
  padding: 4px 10px;
  white-space: nowrap;
}

.conn-status.ok {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.conn-status.err {
  background: #fef2f2;
  color: var(--danger);
}

/* ---------- 登录保护 ---------- */
body.logged-out .app-header,
body.logged-out main.container {
  display: none;
}

.login-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 300;
}

.login-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  max-width: 360px;
  width: 100%;
  padding: 32px 28px;
  text-align: center;
}

.login-box .big {
  font-size: 38px;
  margin-bottom: 6px;
}

.login-box h2 {
  margin: 8px 0 4px;
  font-size: 18px;
}

.login-box p {
  color: var(--muted);
  margin: 4px 0 16px;
  font-size: 13px;
}

.login-box input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 10px 12px;
  margin-bottom: 12px;
  font-size: 14px;
  outline: none;
}

.login-box input:focus { border-color: var(--accent); }
.login-box .btn { width: 100%; padding: 10px; }

.login-error {
  color: var(--danger);
  font-size: 12px;
  margin-top: 12px !important;
}

/* ---------- Buttons ---------- */
.btn {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 9px;
  font-size: 13px;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}

.btn:hover { background: #f8fafc; border-color: #d4dbe4; }
.btn:active { transform: translateY(1px); }

.btn.ghost { background: transparent; }

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

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

.icon-btn {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 15px;
  padding: 4px 8px;
  border-radius: 8px;
}

.icon-btn:hover { background: var(--bg); color: var(--text); }

/* ---------- Dropdown ---------- */
.dropdown { position: relative; }

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 150px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(16, 24, 40, 0.12);
  padding: 5px;
  z-index: 40;
}

.dropdown-menu button {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  padding: 8px 10px;
  border-radius: 7px;
  font-size: 13px;
  color: var(--text);
}

.dropdown-menu button:hover { background: var(--bg); }
.dropdown-menu button.danger { color: var(--danger); }

/* ---------- Layout ---------- */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px;
}

.content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 20px;
  align-items: start;
}

/* ---------- Summary cards ---------- */
.summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.card .card-label {
  color: var(--muted);
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card .card-value {
  font-size: 24px;
  font-weight: 700;
  margin-top: 6px;
  font-variant-numeric: tabular-nums;
}

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

.card .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.card.accent .card-value { color: var(--accent); }
.card.accent .dot { background: var(--accent); }
.card.amber .card-value { color: var(--amber); }
.card.amber .dot { background: var(--amber); }
.card.blue .card-value { color: var(--blue); }
.card.blue .dot { background: var(--blue); }
.card.gray .card-value { color: var(--text); }
.card.gray .dot { background: #94a3b8; }

/* ---------- Toolbar ---------- */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.tabs {
  display: flex;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 4px;
}

.tab {
  border: none;
  background: transparent;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

.tab:hover { color: var(--text); }

.tab.active {
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 600;
}

.tab .tab-count {
  font-size: 11px;
  opacity: 0.75;
  margin-left: 3px;
}

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

.filters input,
.filters select {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 8px 10px;
  background: var(--card);
  color: var(--text);
  outline: none;
}

.filters input:focus,
.filters select:focus { border-color: var(--accent); }

.filters input { width: 180px; }

/* ---------- Panels ---------- */
.list-panel,
.side-panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}

.panel-head h2 {
  margin: 0;
  font-size: 15px;
}

.count { color: var(--muted); font-size: 12px; }

/* ---------- Transaction list ---------- */
.tx-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.tx-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  transition: background 0.12s;
}

.tx-item:last-child { border-bottom: none; }
.tx-item:hover { background: #fafbfc; }

.tx-main { min-width: 0; flex: 1; }

.tx-title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tx-merchant {
  font-weight: 600;
  font-size: 14px;
  word-break: break-word;
}

.cat-dot {
  width: 9px;
  height: 9px;
  border-radius: 3px;
  flex: none;
}

.badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 500;
  white-space: nowrap;
}

.badge.type-once { background: #eef1f5; color: #475569; }
.badge.type-deposit { background: var(--amber-soft); color: var(--amber); }
.badge.type-invoice { background: var(--blue-soft); color: var(--blue); }

.badge.status-done { background: var(--accent-soft); color: var(--accent-dark); }
.badge.status-pay { background: var(--amber-soft); color: var(--amber); }
.badge.status-refund { background: var(--blue-soft); color: var(--blue); }

.tx-meta {
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
}

.tx-note {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.tx-amounts {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
}

.tx-amounts b {
  color: var(--text);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.tx-amounts .warn b { color: var(--amber); }
.tx-amounts .info b { color: var(--blue); }

.tx-items {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.item-chip {
  font-size: 12px;
  background: #f1f5f9;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 8px;
  color: var(--text);
  white-space: nowrap;
}

.chip-ben {
  color: var(--blue);
  font-style: normal;
  margin-left: 4px;
}

.tx-actions {
  display: flex;
  gap: 4px;
  flex: none;
  opacity: 0;
  transition: opacity 0.12s;
}

.tx-item:hover .tx-actions { opacity: 1; }

.mini-btn {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
  font-size: 12px;
  padding: 4px 9px;
  border-radius: 7px;
}

.mini-btn:hover { color: var(--text); border-color: #cbd5e1; }
.mini-btn.del:hover { color: var(--danger); border-color: #fecaca; background: #fef2f2; }

/* ---------- Empty state ---------- */
.empty-state {
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
}

.empty-state .big {
  font-size: 34px;
  margin-bottom: 8px;
}

.empty-state p { margin: 4px 0 14px; }

.empty-state .btn + .btn { margin-left: 8px; }

/* ---------- Category breakdown ---------- */
.cat-breakdown { padding: 14px 18px 18px; }

.cat-row { margin-bottom: 13px; }

.cat-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 5px;
  font-size: 13px;
}

.cat-name {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--text);
}

.cat-name i {
  width: 9px;
  height: 9px;
  border-radius: 3px;
  flex: none;
}

.cat-amt {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.cat-bar {
  height: 7px;
  background: #eef1f5;
  border-radius: 6px;
  overflow: hidden;
}

.cat-bar > div {
  height: 100%;
  border-radius: 6px;
  min-width: 2px;
  transition: width 0.3s ease;
}

.cat-count { color: var(--muted); font-size: 11px; margin-top: 3px; }

.cat-total {
  border-top: 1px dashed var(--line);
  margin-top: 14px;
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  font-size: 13px;
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 16px;
  overflow-y: auto;
  z-index: 100;
}

.modal {
  background: var(--card);
  border-radius: 16px;
  width: 100%;
  max-width: 560px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px 12px;
}

.modal-head h2 { margin: 0; font-size: 17px; }

.modal form { padding: 4px 22px 22px; }

.type-select {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 18px;
}

.radio-card input { display: none; }

.radio-card span {
  display: block;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 6px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.12s;
  user-select: none;
}

.radio-card input:checked + span {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 600;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-grid .full { grid-column: 1 / -1; }

.form-grid label,
.type-section label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 5px;
}

.form-grid input,
.form-grid select,
.type-section input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 9px 11px;
  background: #fff;
  color: var(--text);
  outline: none;
  margin-top: 4px;
}

.form-grid input:focus,
.form-grid select:focus,
.type-section input:focus { border-color: var(--accent); }

.type-section {
  margin-top: 18px;
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}

.type-section h3 {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--text);
}

.check-row {
  display: flex !important;
  align-items: center;
  gap: 7px;
  font-size: 13px !important;
  color: var(--text) !important;
  margin-top: 12px !important;
  cursor: pointer;
}

.check-row input {
  width: auto;
  margin: 0;
  accent-color: var(--accent);
}

.type-hint {
  color: var(--muted);
  font-size: 12px;
  margin: 0 0 12px;
}

/* ---------- 子项目 ---------- */
.item-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 10px;
  background: #fafbfc;
}

.item-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.item-name-label {
  flex: 1 1 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 8px 11px;
  background: #fff;
  color: var(--text);
  font-size: 14px;
  cursor: text;
  outline: none;
  white-space: normal;
  word-break: break-all;
}

.item-name-label:focus {
  border-color: var(--accent);
}

.item-name-label:empty::before {
  content: attr(data-ph);
  color: #9aa4b2;
}

.item-amount {
  width: 110px;
}

.item-fields {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  gap: 8px 10px;
  margin-top: 8px;
  align-items: end;
}

.item-fields label.field-label {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin: 0 0 3px;
}

.item-fields .chk {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text);
  padding-bottom: 9px;
  cursor: pointer;
  white-space: nowrap;
}

.item-fields .chk input {
  width: auto;
  margin: 0;
  accent-color: var(--accent);
}

.item-fields input[type="number"] {
  margin-top: 0;
}

.item-del {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
  font-size: 12px;
  padding: 4px 9px;
  border-radius: 7px;
  white-space: nowrap;
}

.item-del:hover {
  color: var(--danger);
  border-color: #fecaca;
  background: #fef2f2;
}

@media (max-width: 560px) {
  .item-fields { grid-template-columns: 1fr 1fr; }
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 22px;
}

/* ---------- 服务错误页 ---------- */
.server-error {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 200;
}

.server-error-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  max-width: 440px;
  width: 100%;
  padding: 32px 28px;
  text-align: center;
}

.server-error-box .big {
  font-size: 38px;
  margin-bottom: 6px;
}

.server-error-box h2 {
  margin: 8px 0;
  font-size: 18px;
}

.server-error-box p {
  color: var(--muted);
  margin: 8px 0 14px;
  text-align: left;
}

.server-error-box ol {
  text-align: left;
  color: var(--muted);
  margin: 0 0 18px;
  padding-left: 20px;
  line-height: 1.9;
}

.server-error-box code {
  background: #f1f5f9;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 6px;
  font-size: 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .summary { grid-template-columns: repeat(2, 1fr); }
  .content { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .header-inner { padding: 12px 14px; }
  .container { padding: 14px; }
  .summary { grid-template-columns: 1fr 1fr; gap: 10px; }
  .card .card-value { font-size: 19px; }
  .conn-status { display: none; }
  .type-select { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .full { grid-column: auto; }
  .filters input { width: 100%; }
  .filters { width: 100%; }
  .filters select { flex: 1; min-width: 0; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .tabs { overflow-x: auto; }
  .tx-actions { opacity: 1; }
}