:root {
  --bg: #f4f7fb;
  --panel: #ffffff;
  --panel-soft: #eef4ff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --success: #16a34a;
  --success-dark: #15803d;
  --danger: #dc2626;
  --danger-dark: #b91c1c;
  --border: #dbe3ef;
  --shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.15), transparent 30%),
    linear-gradient(180deg, #f9fbff 0%, var(--bg) 100%);
  color: var(--text);
}

a {
  color: var(--primary);
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(100%, 420px);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(219, 227, 239, 0.8);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 32px;
}

.auth-card h1,
.page-header h1,
.panel h2 {
  margin: 0 0 8px;
}

.subtitle,
.page-header p,
.panel-header p,
.switch-link {
  color: var(--muted);
}

.form-card,
.form-grid {
  display: grid;
  gap: 12px;
}

label {
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(15, 118, 110, 0.15);
  border-color: var(--primary);
}

.btn-primary,
.btn-success,
.btn-danger,
.btn-secondary,
.btn-ghost,
.action-button {
  border: none;
  border-radius: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn-primary:hover,
.btn-success:hover,
.btn-danger:hover,
.btn-secondary:hover,
.btn-ghost:hover,
.action-button:hover {
  transform: translateY(-1px);
}

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

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

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

.btn-secondary {
  background: #dbeafe;
  color: var(--primary-dark);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.full-width {
  width: 100%;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
}

.sidebar {
  padding: 28px 20px;
  background: #0f172a;
  color: #fff;
}

.sidebar nav {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.sidebar a,
.sidebar button {
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.04);
  padding: 12px 14px;
  border-radius: 12px;
  text-align: left;
}

.sidebar a.active {
  background: rgba(15, 118, 110, 0.35);
  color: #fff;
}

.content {
  padding: 28px;
}

.page-header,
.panel-header,
.filter-inline,
.inline-form,
.modal-header,
.modal-actions,
.item-row,
.item-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.page-header,
.panel-header {
  justify-content: space-between;
  flex-wrap: wrap;
}

.filter-inline,
.inline-form {
  flex-wrap: wrap;
}

.filter-inline {
  justify-content: flex-end;
}

.filter-inline > * {
  width: auto;
  min-width: 140px;
  flex: 0 0 auto;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr)) auto;
  gap: 12px;
  align-items: end;
}

.filter-grid > *,
.inline-form > * {
  min-width: 0;
}

.filter-grid button,
.inline-form button {
  width: auto;
  white-space: nowrap;
}

.filter-grid button {
  min-width: 150px;
  min-height: 100%;
}

.inline-form input,
.inline-form select,
.inline-form textarea {
  flex: 1 1 260px;
}

.inline-form button {
  flex: 0 0 auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.stat-card,
.panel,
.day-group,
.list-item {
  background: var(--panel);
  border: 1px solid rgba(219, 227, 239, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stat-card {
  padding: 20px;
  display: grid;
  gap: 8px;
}

.stat-card strong {
  font-size: 1.5rem;
}

.panel {
  padding: 20px;
  margin-bottom: 18px;
}

.chart-list,
.list-stack {
  display: grid;
  gap: 12px;
}

.recent-expenses-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.chart-bar {
  display: grid;
  gap: 8px;
}

.bar-track {
  height: 12px;
  background: #e5eef9;
  border-radius: 999px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--bar-start, #0f766e), var(--bar-end, #14b8a6));
}

.day-group {
  padding: 16px;
}

.day-group h3 {
  margin: 0 0 12px;
}

.expense-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.list-item {
  padding: 16px;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.expense-grid .item-actions {
  margin-top: auto;
  padding-top: 12px;
}

.item-row {
  justify-content: space-between;
  flex-wrap: wrap;
}

.item-meta {
  color: var(--muted);
  margin-top: 8px;
}

.item-actions {
  justify-content: flex-end;
  margin-top: 12px;
}

.action-button.edit {
  background: #dbeafe;
  color: var(--primary-dark);
}

.action-button.delete {
  background: #fee2e2;
  color: var(--danger-dark);
}

.alert {
  padding: 12px 14px;
  border-radius: 12px;
  margin-bottom: 16px;
}

.alert-success {
  background: #dcfce7;
  color: #166534;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
}

.calendar-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(300px, 1fr);
  gap: 18px;
}

.calendar-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.calendar-toolbar h2 {
  margin: 0;
  text-transform: capitalize;
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}

.calendar-weekdays {
  margin-bottom: 10px;
  color: var(--muted);
  font-weight: 600;
  text-align: center;
}

.calendar-day {
  min-height: 110px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #fff;
  padding: 10px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.calendar-day-empty {
  min-height: 110px;
}

.calendar-day-number {
  font-weight: 700;
}

.calendar-day-note {
  font-size: 0.88rem;
  color: #334155;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.calendar-day-marked,
.calendar-day-green {
  background: #dcfce7;
  border-color: #86efac;
}

.calendar-day-red {
  background: #fee2e2;
  border-color: #fca5a5;
}

.calendar-day-blue {
  background: #dbeafe;
  border-color: #93c5fd;
}

.calendar-day-amber {
  background: #fef3c7;
  border-color: #fcd34d;
}

.calendar-day-purple {
  background: #ede9fe;
  border-color: #c4b5fd;
}

.calendar-day-slate {
  background: #e2e8f0;
  border-color: #94a3b8;
}

.calendar-day-today {
  box-shadow: inset 0 0 0 2px rgba(15, 118, 110, 0.55);
}

.calendar-day-selected {
  transform: translateY(-1px);
  border-color: var(--primary);
  box-shadow:
    inset 0 0 0 2px rgba(37, 99, 235, 0.35),
    0 12px 30px rgba(15, 23, 42, 0.12);
}

.calendar-side-panel {
  align-self: start;
}

.calendar-form-actions {
  display: flex;
  gap: 12px;
}

.tag-section {
  display: grid;
  gap: 12px;
}

.tag-section-header {
  display: grid;
  gap: 4px;
}

.tag-section-note,
.tag-empty-state {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0;
}

.tag-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-chip,
.calendar-tag-mini {
  border-radius: 999px;
  font-size: 0.82rem;
}

.tag-chip {
  border: 1px solid var(--border);
  background: #fff;
  padding: 8px 12px;
  cursor: pointer;
  color: var(--text);
}

.tag-chip.active {
  box-shadow: inset 0 0 0 2px rgba(15, 23, 42, 0.12);
  transform: translateY(-1px);
}

.action-button:disabled,
.btn-primary:disabled,
.btn-success:disabled,
.btn-danger:disabled,
.btn-secondary:disabled,
.btn-ghost:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.tag-create-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) 48px auto;
  gap: 4px;
}

.tag-create-grid input {
  flex: 1;
}

.tag-builder-card {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid rgba(219, 227, 239, 0.9);
  border-radius: 16px;
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
}

.tag-builder-preview {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.tag-chip-preview {
  border: 1px solid transparent;
}

.color-picker-field {
  display: grid;
  gap: 8px;
  font-weight: 600;
  max-width: 48px;
}

.color-picker-field input[type="color"] {
  width: 100%;
  min-height: 48px;
  padding: 4px;
  border-radius: 12px;
  cursor: pointer;
}

.calendar-day-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.calendar-tag-mini {
  border: 1px solid transparent;
  padding: 4px 8px;
}

.calendar-legend {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.calendar-record-list {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

.calendar-record-card {
  border: 1px solid rgba(219, 227, 239, 0.9);
  border-radius: 16px;
  background: #f8fbff;
  padding: 14px;
  display: grid;
  gap: 8px;
}

.calendar-record-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.calendar-record-content {
  color: #334155;
  white-space: pre-wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

.legend-dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  display: inline-block;
}

.legend-dot.green {
  background: #22c55e;
}

.legend-dot.red {
  background: #ef4444;
}

.legend-dot.blue {
  background: #3b82f6;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: grid;
  place-items: center;
  padding: 20px;
}

.modal-card {
  width: min(100%, 560px);
  background: #fff;
  border-radius: 20px;
  padding: 20px;
}

.modal-header {
  justify-content: space-between;
}

.modal-header h2 {
  margin: 0;
}

.icon-button {
  border: none;
  width: 40px;
  height: 40px;
  margin-left: auto;
  border-radius: 999px;
  background: #eff6ff;
  color: var(--primary-dark);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.icon-button:hover {
  background: #dbeafe;
}

.input-with-suffix {
  display: flex;
  align-items: stretch;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
}

.input-with-suffix:focus-within {
  outline: 2px solid rgba(15, 118, 110, 0.15);
  border-color: var(--primary);
}

.input-with-suffix input {
  border: none;
  border-radius: 0;
  flex: 1 1 auto;
  min-width: 0;
}

.input-with-suffix input:focus {
  outline: none;
  border-color: transparent;
}

.input-suffix {
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  background: #f8fafc;
  border-left: 1px solid var(--border);
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.memory-hero {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 18px;
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.12), transparent 35%),
    linear-gradient(135deg, #f8fbff 0%, #ffffff 100%);
}

.memory-now-card {
  min-width: 260px;
  padding: 18px;
  border: 1px solid rgba(147, 197, 253, 0.6);
  border-radius: 16px;
  background: #eff6ff;
  display: grid;
  gap: 8px;
}

.memory-now-card span,
.memory-helper-text,
.memory-card-label,
.memory-card p {
  color: var(--muted);
}

.memory-now-card strong {
  color: var(--primary-dark);
  line-height: 1.5;
}

.memory-form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 0.9fr) auto auto;
  gap: 12px;
  align-items: end;
}

.memory-form-action {
  display: flex;
  align-items: flex-end;
}

.memory-time-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.memory-list {
  display: grid;
  gap: 16px;
}

.memory-card,
.memory-empty-state {
  border: 1px solid rgba(219, 227, 239, 0.9);
  border-radius: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  padding: 18px;
}

.memory-card-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.memory-card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.memory-card-header h3,
.memory-card-header p {
  margin: 0;
}

.memory-card-header h3 {
  margin-top: 6px;
  margin-bottom: 6px;
}

.memory-edit-button,
.memory-remove-button {
  min-width: 88px;
}

.memory-counter-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.memory-counter-block {
  padding: 16px 12px;
  border-radius: 16px;
  background: #eff6ff;
  border: 1px solid rgba(147, 197, 253, 0.45);
  text-align: center;
  display: grid;
  gap: 6px;
}

.memory-counter-block strong {
  font-size: 1.8rem;
  color: var(--primary-dark);
}

.flatpickr-calendar {
  border: 1px solid rgba(219, 227, 239, 0.95);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange,
.flatpickr-day.selected.inRange,
.flatpickr-day.startRange.inRange,
.flatpickr-day.endRange.inRange,
.flatpickr-day.selected:focus,
.flatpickr-day.startRange:focus,
.flatpickr-day.endRange:focus,
.flatpickr-day.selected:hover,
.flatpickr-day.startRange:hover,
.flatpickr-day.endRange:hover {
  background: var(--primary);
  border-color: var(--primary);
}

.flatpickr-day.today {
  border-color: var(--success);
}

.memory-empty-state {
  display: grid;
  gap: 8px;
  text-align: center;
}

.setup-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.setup-panel {
  display: grid;
  gap: 16px;
}

.setup-panel-note {
  margin: 0;
}

.setup-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.setup-color-row,
.setup-tag-preview-row,
.setup-tag-title {
  display: grid;
  gap: 8px;
}

.setup-color-row input[type="color"] {
  max-width: 72px;
  min-height: 48px;
  padding: 4px;
}

.setup-preview-label {
  color: var(--muted);
  font-size: 0.92rem;
}

.hidden {
  display: none !important;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    padding-bottom: 10px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .calendar-layout {
    grid-template-columns: 1fr;
  }

  .setup-grid {
    grid-template-columns: 1fr;
  }

  .memory-hero,
  .memory-card-header {
    flex-direction: column;
  }

  .memory-form-grid,
  .memory-counter-grid {
    grid-template-columns: 1fr 1fr;
  }

  .filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .recent-expenses-grid,
  .expense-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .content {
    padding: 18px;
  }

  .filter-grid,
  .inline-form,
  .filter-inline,
  .page-header,
  .panel-header,
  .item-row,
  .modal-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .calendar-toolbar,
  .calendar-form-actions,
  .tag-create-grid {
    grid-template-columns: 1fr;
  }

  .calendar-day {
    min-height: 92px;
  }

  .memory-form-grid,
  .memory-counter-grid {
    grid-template-columns: 1fr;
  }

  .memory-now-card {
    min-width: auto;
  }

  .filter-grid {
    grid-template-columns: 1fr;
  }

  .filter-inline > *,
  .inline-form button,
  .filter-grid button {
    width: 100%;
  }

  .recent-expenses-grid,
  .expense-grid {
    grid-template-columns: 1fr;
  }
}