/* ─── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #232635;
  --border: #2d3148;
  --text: #e2e8f0;
  --text-muted: #8892a4;
  --accent: #6c63ff;
  --accent-hover: #7c74ff;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

html { font-size: 15px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ─── Header ─────────────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.3px;
}

.last-scan {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.header-left { display: flex; flex-direction: column; gap: 2px; }
.header-right { display: flex; align-items: center; gap: 0.75rem; }

/* ─── Buttons ─────────────────────────────────────────────── */
.btn {
  padding: 0.5rem 1.1rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-secondary {
  background: var(--surface2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-secondary:hover { color: var(--text); border-color: var(--accent); }

/* ─── Layout ─────────────────────────────────────────────── */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ─── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
}

/* ─── Summary Cards ──────────────────────────────────────── */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
}

/* ─── Charts ─────────────────────────────────────────────── */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.chart-container {
  position: relative;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ─── Category Breakdown ─────────────────────────────────── */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.4rem;
}

.cat-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.12s;
  border: 1px solid transparent;
}

.cat-row:hover { background: var(--surface2); }
.cat-row--active { background: var(--surface2); border-color: var(--accent); }

.cat-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.cat-name {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text);
}

.cat-count {
  font-size: 0.75rem;
  color: #fff;
  white-space: nowrap;
}

.cat-amount {
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  min-width: 80px;
  text-align: right;
}

.cat-amount.credit { color: #fff; }

/* ─── Filters ────────────────────────────────────────────── */
.filters {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.filter-input, .filter-select, .month-picker {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.45rem 0.75rem;
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.15s;
}

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

.filter-input { min-width: 220px; }
.filter-select { min-width: 160px; }
.month-picker { min-width: 150px; }
.month-picker::-webkit-calendar-picker-indicator { filter: invert(1); cursor: pointer; }

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

.txn-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.txn-table th {
  padding: 0.65rem 1rem;
  text-align: left;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.txn-table th.sortable { cursor: pointer; user-select: none; }
.txn-table th.sortable:hover { color: var(--text); }
.txn-table th.sort-asc .sort-icon::after { content: " ↑"; }
.txn-table th.sort-desc .sort-icon::after { content: " ↓"; }

.txn-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}

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

.txn-table tr:hover td { background: var(--surface2); }

.amount-positive { color: var(--red); font-weight: 600; }
.amount-negative { color: var(--green); font-weight: 600; }

.category-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--surface2);
  border: 1px solid var(--border);
  white-space: nowrap;
}

.empty-row {
  text-align: center;
  color: var(--text-muted);
  padding: 2.5rem !important;
  font-style: italic;
}

/* ─── Pagination ─────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.page-btn {
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.15s;
}

.page-btn:hover { border-color: var(--accent); color: var(--text); }
.page-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ─── Toast ──────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  z-index: 9999;
  max-width: 340px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  transition: opacity 0.3s, transform 0.3s;
}

.toast.success { background: #166534; border: 1px solid var(--green); color: #bbf7d0; }
.toast.error   { background: #7f1d1d; border: 1px solid var(--red);   color: #fecaca; }
.toast.info    { background: #1e1b4b; border: 1px solid var(--accent); color: #c7d2fe; }
.toast.hidden  { opacity: 0; pointer-events: none; transform: translateY(8px); }

/* ─── Inline Edit ────────────────────────────────────────── */
.edit-col { width: 64px; text-align: center; }

.edit-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.2rem 0.35rem;
  border-radius: 6px;
  font-size: 0.85rem;
  opacity: 0.35;
  transition: opacity 0.15s, background 0.15s;
}
.txn-table tr:hover .edit-btn { opacity: 1; }
.edit-btn:hover { background: var(--surface2); opacity: 1; }

.save-btn   { color: var(--green); opacity: 1; }
.cancel-btn { color: var(--red);   opacity: 1; }

.edit-input, .edit-select {
  background: var(--surface2);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--text);
  padding: 0.3rem 0.5rem;
  font-size: 0.85rem;
  outline: none;
  width: 100%;
}
.edit-input  { min-width: 130px; }
.edit-select { min-width: 140px; }

tr.editing td { background: #1e2133; }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .summary-cards { grid-template-columns: repeat(2, 1fr); }
  .charts-row    { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .header { flex-direction: column; gap: 0.75rem; align-items: flex-start; }
  .container { padding: 1rem; }
  .summary-cards { grid-template-columns: 1fr 1fr; }
}