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

:root {
  --bg: #F9F9F8;
  --surface: #FFFFFF;
  --border: #E5E5E4;
  --border-focus: #2563EB;
  --text: #1A1A1A;
  --text-secondary: #6B6B6B;
  --text-placeholder: #A8A8A6;
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-light: #EFF6FF;
  --income: #16A34A;
  --income-bg: #F0FDF4;
  --expense: #DC2626;
  --expense-bg: #FEF2F2;
  --warning: #D97706;
  --warning-bg: #FFFBEB;
  --sidebar-w: 220px;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', system-ui, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  height: 100vh;
  overflow: hidden;
}

/* ─── Layout ─── */
#app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

#sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
  overflow-x: hidden;
}

#main {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--bg);
}

#content {
  padding: 36px 40px;
  min-height: 100%;
  max-width: 1200px;
}

/* ─── Sidebar ─── */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 18px 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo-mark {
  width: 30px;
  height: 30px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.sidebar-logo-text {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  letter-spacing: -0.01em;
}

.sidebar-section {
  padding: 12px 10px 4px;
}

.sidebar-section-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-placeholder);
  padding: 0 8px;
  margin-bottom: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13.5px;
  font-weight: 450;
  transition: background 0.1s, color 0.1s;
  user-select: none;
  margin-bottom: 1px;
}

.nav-item:hover {
  background: var(--bg);
  color: var(--text);
}

.nav-item.active {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 550;
}

.nav-item svg {
  flex-shrink: 0;
  opacity: 0.8;
}

.nav-item.active svg {
  opacity: 1;
}

.sidebar-bottom {
  margin-top: auto;
  padding: 12px 10px;
  border-top: 1px solid var(--border);
}

/* ─── Page header ─── */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}

.page-title {
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.2;
}

.page-subtitle {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-top: 3px;
}

.page-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.1s, border-color 0.1s, color 0.1s, box-shadow 0.1s;
  white-space: nowrap;
  line-height: 1.4;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--bg);
  color: var(--text);
  border-color: #ccc;
}

.btn-danger {
  background: transparent;
  color: var(--expense);
  border-color: var(--expense);
}

.btn-danger:hover:not(:disabled) {
  background: var(--expense-bg);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12.5px;
}

.btn-icon {
  padding: 6px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  transition: background 0.1s, color 0.1s;
}

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

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

/* ─── Cards ─── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ─── KPI Stats ─── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}

.stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.stat-value {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1;
}

.stat-value.income { color: var(--income); }
.stat-value.expense { color: var(--expense); }
.stat-value.neutral { color: var(--text); }

.stat-sub {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 5px;
}

/* ─── Grid layouts ─── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

thead th {
  text-align: left;
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  padding: 0 12px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

thead th:first-child { padding-left: 0; }

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.08s;
}

tbody tr:last-child { border-bottom: none; }

tbody tr:hover { background: #FAFAFA; }

tbody td {
  padding: 12px;
  color: var(--text);
  vertical-align: middle;
}

tbody td:first-child { padding-left: 0; }

.td-secondary { color: var(--text-secondary); }
.td-right { text-align: right; }
.td-actions { display: flex; gap: 4px; justify-content: flex-end; }

/* ─── Badges ─── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 100px;
  font-size: 11.5px;
  font-weight: 550;
  letter-spacing: 0.01em;
}

.badge-green  { background: var(--income-bg);  color: var(--income); }
.badge-red    { background: var(--expense-bg); color: var(--expense); }
.badge-amber  { background: var(--warning-bg); color: var(--warning); }
.badge-blue   { background: var(--accent-light); color: var(--accent); }
.badge-gray   { background: #F3F3F2; color: var(--text-secondary); }

/* ─── Forms ─── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-grid.cols-1 { grid-template-columns: 1fr; }
.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-group.span-2 { grid-column: span 2; }

label {
  font-size: 12.5px;
  font-weight: 550;
  color: var(--text);
}

input, select, textarea {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--text);
  background: var(--surface);
  font-family: inherit;
  transition: border-color 0.1s, box-shadow 0.1s;
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.08);
}

input::placeholder, textarea::placeholder {
  color: var(--text-placeholder);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.form-hint {
  font-size: 12px;
  color: var(--text-secondary);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ─── Modal ─── */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  backdrop-filter: blur(2px);
}

#modal-overlay.open {
  display: flex;
}

#modal-box {
  background: var(--surface);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modal-in 0.15s ease;
}

#modal-box.modal-lg {
  max-width: 720px;
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.97) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 16px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.modal-body {
  padding: 20px 24px;
}

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  transition: background 0.1s, color 0.1s;
}

.modal-close:hover {
  background: var(--bg);
  color: var(--text);
}

/* ─── Toasts ─── */
#toasts {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
}

.toast {
  background: var(--text);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 450;
  box-shadow: var(--shadow-md);
  animation: toast-in 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 320px;
}

.toast.success { background: var(--income); }
.toast.error   { background: var(--expense); }
.toast.warning { background: var(--warning); }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(12px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ─── Empty state ─── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  color: var(--text-secondary);
  gap: 8px;
}

.empty-state-icon {
  width: 44px;
  height: 44px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
  color: var(--text-placeholder);
}

.empty-state-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.empty-state p {
  font-size: 13px;
  max-width: 300px;
}

/* ─── Property cards ─── */
.property-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.property-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: border-color 0.12s, box-shadow 0.12s;
  box-shadow: var(--shadow);
}

.property-card:hover {
  border-color: #ccc;
  box-shadow: 0 2px 8px rgba(0,0,0,0.09);
}

.property-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}

.property-card-name {
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--text);
  line-height: 1.3;
}

.property-card-address {
  font-size: 12.5px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.property-card-stats {
  display: flex;
  gap: 16px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.property-card-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.property-card-stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  color: var(--text-placeholder);
}

.property-card-stat-value {
  font-size: 14px;
  font-weight: 650;
  color: var(--text);
}

/* ─── Detail views ─── */
.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  margin-bottom: 20px;
  padding: 4px 0;
  transition: color 0.1s;
}

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

.section-title {
  font-size: 14px;
  font-weight: 650;
  color: var(--text);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

/* ─── Amount colors ─── */
.amount-income { color: var(--income); font-weight: 600; }
.amount-expense { color: var(--expense); font-weight: 600; }

/* ─── Filter bar ─── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.filter-bar input,
.filter-bar select {
  width: auto;
  min-width: 160px;
}

/* ─── Dashboard two-col ─── */
.dash-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}

.dash-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.dash-list-item:last-child { border-bottom: none; }

.dash-list-item-title {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
}

.dash-list-item-sub {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ─── Section divider ─── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

/* ─── Tabs ─── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.tab-item {
  padding: 8px 16px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.1s, border-color 0.1s;
}

.tab-item:hover { color: var(--text); }
.tab-item.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* ─── Misc ─── */
.text-right { text-align: right; }
.text-secondary { color: var(--text-secondary); }
.text-sm { font-size: 12.5px; }
.fw-600 { font-weight: 600; }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11.5px;
  color: var(--text-secondary);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 2px 7px;
  border-radius: 100px;
}

.info-row {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
}

.info-row:last-child { border-bottom: none; }

.info-label {
  font-weight: 550;
  color: var(--text-secondary);
  min-width: 140px;
  flex-shrink: 0;
}

.summary-totals {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 13.5px;
}

.summary-row.total {
  font-weight: 700;
  font-size: 15px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.settings-section {
  max-width: 560px;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.settings-row:last-child { border-bottom: none; }

.settings-row-info h4 {
  font-size: 14px;
  font-weight: 600;
}

.settings-row-info p {
  font-size: 12.5px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ─── Welcome screen ─── */
#welcome-screen {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.welcome-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 520px;
  width: 100%;
  padding: 0 24px;
}

.welcome-logo {
  margin-bottom: 20px;
}

.welcome-title {
  font-size: 28px;
  font-weight: 750;
  letter-spacing: -0.04em;
  color: var(--text);
  margin-bottom: 8px;
}

.welcome-sub {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 36px;
}

.welcome-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  width: 100%;
  margin-bottom: 20px;
}

.welcome-option-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 20px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.12s, box-shadow 0.12s, transform 0.1s;
  box-shadow: var(--shadow);
  font-family: inherit;
}

.welcome-option-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.08);
  transform: translateY(-1px);
}

.welcome-option-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.welcome-option-title {
  font-size: 14px;
  font-weight: 650;
  color: var(--text);
  margin-bottom: 4px;
}

.welcome-option-desc {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.welcome-option-desc code {
  font-family: monospace;
  font-size: 12px;
  background: var(--bg);
  padding: 1px 4px;
  border-radius: 3px;
  border: 1px solid var(--border);
}

.welcome-hint {
  font-size: 12.5px;
  color: var(--text-placeholder);
  line-height: 1.6;
}

.welcome-returning {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.welcome-file-name {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  margin-bottom: 12px;
  font-family: monospace;
}

.welcome-btn {
  width: 100%;
  justify-content: center;
  padding: 10px;
  font-size: 14px;
  margin-bottom: 8px;
}

.welcome-btn-sm {
  font-size: 13px;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  text-decoration: underline;
  font-family: inherit;
}

.welcome-btn-sm:hover { color: var(--text); }

/* ─── File status indicator in sidebar ─── */
.sidebar-file-info {
  padding: 10px 18px 14px;
  font-size: 11.5px;
  color: var(--text-placeholder);
  display: flex;
  align-items: center;
  gap: 6px;
  overflow: hidden;
}

.sidebar-file-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--income);
  flex-shrink: 0;
}

.sidebar-file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}