:root {
    --bg: #fafaf9;
    --surface: #ffffff;
    --border: #e5e2dd;
    --text: #2a2724;
    --text-dim: #767068;
    --accent: #8a5a3f;
    --accent-hover: #6f4832;
    --green: #3d7a4f;
    --amber: #b5792a;
    --red: #b3453d;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}

.topnav {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0 24px;
    height: 52px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.topnav .brand {
    font-weight: 700;
    margin-right: 24px;
    color: var(--accent);
}

.topnav a {
    color: var(--text-dim);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
}

.topnav a:hover { background: var(--bg); color: var(--text); }
.topnav a.active { color: var(--accent); font-weight: 600; }

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 24px 0 12px; }

.account-switcher {
    font-family: inherit;
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 16px;
    padding: 2px 8px 2px 0;
    border: none;
    background: transparent;
    color: var(--text);
    cursor: pointer;
}
.account-switcher:hover, .account-switcher:focus { color: var(--accent); }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 16px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.txn-scroll-body {
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    z-index: 1;
}
.txn-table td, .txn-table th {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

th {
    text-align: left;
    padding: 8px 10px;
    color: var(--text-dim);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tr.row-flagged td {
    background: #fbf1e6;
}
tr.row-flagged:hover td {
    background: #f7e8d6;
}

tr:hover td { background: rgba(0,0,0,0.015); }

/* Excel-style AutoFilter header */
th.filterable {
    position: relative;
    padding-right: 4px;
}
.th-inner {
    display: flex;
    align-items: center;
    gap: 4px;
}
.sort-btn {
    background: none;
    border: none;
    padding: 2px 4px;
    cursor: pointer;
    font-size: 11px;
    color: var(--text-dim);
    line-height: 1;
}
.sort-btn:hover { color: var(--text); }
.sort-btn.active { color: var(--accent); font-weight: 700; }
.filter-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 1px 5px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text);
    line-height: 1.4;
    border-radius: 4px;
}
.filter-btn:hover { background: var(--border); }
.filter-btn.active { color: var(--accent); border-color: var(--accent); font-weight: 700; }

.filter-dropdown {
    position: fixed;
    z-index: 50;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    padding: 8px;
    min-width: 220px;
    max-width: 320px;
    font-weight: normal;
    white-space: normal;
}
.filter-dropdown .filter-search {
    width: 100%;
    margin-bottom: 6px;
    box-sizing: border-box;
}
.filter-dropdown .filter-options {
    max-height: 240px;
    overflow-y: auto;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 4px 0;
    margin-bottom: 6px;
}
.filter-dropdown label {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 2px;
    font-size: 12px;
    cursor: pointer;
}
.filter-dropdown .filter-actions {
    display: flex;
    justify-content: space-between;
    gap: 6px;
}
.filter-dropdown .filter-actions button {
    flex: 1;
    font-size: 12px;
    padding: 5px 8px;
}
.filter-select-links {
    display: flex;
    gap: 8px;
    font-size: 11px;
    margin-bottom: 4px;
}
.filter-select-links a {
    color: var(--accent);
    cursor: pointer;
    text-decoration: underline;
}

.cat-picker-btn {
    min-width: 200px;
    max-width: 220px;
    text-align: left;
    font-size: 13px;
    padding: 5px 10px;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.cat-picker-btn:hover { border-color: var(--accent); }

.cat-picker-dropdown { min-width: 260px; }
.cat-picker-dropdown .filter-options { max-height: 280px; }
.cat-picker-group {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-dim);
    padding: 6px 6px 2px;
}
.cat-picker-option {
    padding: 5px 6px;
    font-size: 12.5px;
    cursor: pointer;
    border-radius: 4px;
}
.cat-picker-option:hover { background: var(--bg); color: var(--accent); }
.cat-picker-empty {
    padding: 10px 6px;
    font-size: 12px;
    color: var(--text-dim);
}

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

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
}
.badge-exact { background: #e4f0e6; color: var(--green); }
.badge-rule { background: #eef1f7; color: #3f5a8a; }
.badge-ai { background: #f4ecdd; color: var(--amber); }
.badge-manual { background: #f0e8f4; color: #7a4a9a; }
.badge-none { background: #f7e6e4; color: var(--red); }

button, input[type=submit] {
    font-family: inherit;
    font-size: 13px;
    padding: 7px 14px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
}

button.primary {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}
button.primary:hover { background: var(--accent-hover); }

input[type=text], input[type=date], input[type=file], select {
    font-family: inherit;
    font-size: 13px;
    padding: 7px 10px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
}

.filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 16px;
}

.dropzone {
    border: 2px dashed var(--border);
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    color: var(--text-dim);
    background: var(--surface);
}

.dropzone.dragover {
    border-color: var(--accent);
    background: #fbf4ee;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-dim);
}

.muted { color: var(--text-dim); }
.stat-row { display: flex; gap: 16px; margin-bottom: 16px; }
.stat {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
}
.stat .value { font-size: 22px; font-weight: 700; }
.stat .label { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

/* Category breakdown bar chart (sequential magnitude, single hue) */
.bar-chart { display: flex; flex-direction: column; gap: 6px; }
.bar-row { display: grid; grid-template-columns: 160px 1fr 70px; align-items: center; gap: 10px; }
.bar-label { font-size: 12px; color: var(--text-dim); text-align: right; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-track { background: var(--bg); border-radius: 4px; height: 16px; overflow: hidden; }
.bar-fill { background: var(--accent); height: 100%; border-radius: 4px; min-width: 2px; }
.bar-value { font-size: 12px; color: var(--text); text-align: right; font-variant-numeric: tabular-nums; }

/* Year-over-year trend chart (income/expense/savings grouped bars).
   Colors are the dataviz skill's validated 3-slot categorical order
   (blue/orange/aqua) -- picked for CVD-safe adjacency, not literal
   good/bad connotation, since income/expenses/savings is identity here,
   not a single good/bad status. Aqua is below the 3:1 contrast floor on
   this light surface, so it always ships with the legend + axis labels
   as the required relief (never color alone). */
.trend-svg { width: 100%; height: auto; }
.chart-zero-line { stroke: var(--border); stroke-width: 1; }
.chart-axis-label { font-size: 11px; fill: var(--text-dim); }
.bar-income { fill: #2a78d6; }
.bar-expense { fill: #eb6834; }
.bar-savings { fill: #1baf7a; }
.chart-legend { display: flex; gap: 16px; justify-content: center; margin-top: 8px; font-size: 12px; color: var(--text-dim); }
.legend-swatch { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 4px; vertical-align: middle; }
.legend-income { background: #2a78d6; }
.legend-expense { background: #eb6834; }
.legend-savings { background: #1baf7a; }