:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --border: #e2e6ec;
  --text: #1c2431;
  --text-muted: #6b7688;
  --primary: #1f5c4a;
  --primary-dark: #163f33;
  --positive: #1f7a4d;
  --negative: #c0392b;
  --risk-1: #2c7fb8;
  --risk-2: #2ca25f;
  --risk-3: #e08e26;
  --risk-4: #c0392b;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(20, 30, 40, 0.08), 0 1px 2px rgba(20, 30, 40, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
}

.tabs { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.tab {
  border: none; background: transparent; color: var(--text-muted);
  padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: 500;
}
.tab:hover { background: var(--bg); }
.tab.active { background: var(--primary); color: #fff; }

.btn {
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 13px; font-weight: 600;
}
.btn:hover { border-color: var(--primary); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-small { padding: 4px 10px; font-size: 12px; }
.btn-danger { color: var(--negative); }

main { max-width: 1180px; margin: 0 auto; padding: 24px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.card .label { color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 6px; }
.card .value { font-size: 22px; font-weight: 700; }
.card .sub { font-size: 13px; margin-top: 4px; }
.card-wide { grid-column: 1 / -1; }
.card-split { display: flex; gap: 32px; flex-wrap: wrap; }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; margin-bottom: 20px; box-shadow: var(--shadow); }
.panel h3 { margin: 0 0 12px; font-size: 15px; }
.panel-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; flex-wrap: wrap; gap: 8px; }

.positive { color: var(--positive); }
.negative { color: var(--negative); }
.muted { color: var(--text-muted); }
.small { font-size: 12px; }

.table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.table th { text-align: left; color: var(--text-muted); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
.table td { padding: 10px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tbody tr:hover { background: #fafbfc; }
.total-row td { border-top: 2px solid var(--border); border-bottom: none; }
.table-wrap { overflow-x: auto; }
.table-fund-names td:first-child, .table-fund-names th:first-child { min-width: 130px; }

.risk-badge {
  display: inline-flex; align-items: center; justify-content: center; white-space: nowrap;
  width: 92px; height: 22px; border-radius: 999px; font-size: 12px; font-weight: 700; color: #fff;
}
.risk-1 { background: var(--risk-1); }
.risk-2 { background: var(--risk-2); }
.risk-3 { background: var(--risk-3); }
.risk-4 { background: var(--risk-4); }

.risk-filters { display: flex; gap: 6px; flex-wrap: wrap; }
.risk-chip {
  border: 1px solid var(--border); background: var(--surface); border-radius: 999px; white-space: nowrap;
  padding: 5px 12px; font-size: 12.5px; font-weight: 600; cursor: pointer; color: var(--text-muted);
}
.risk-chip.on-1.active { background: var(--risk-1); color: #fff; border-color: var(--risk-1); }
.risk-chip.on-2.active { background: var(--risk-2); color: #fff; border-color: var(--risk-2); }
.risk-chip.on-3.active { background: var(--risk-3); color: #fff; border-color: var(--risk-3); }
.risk-chip.on-4.active { background: var(--risk-4); color: #fff; border-color: var(--risk-4); }

.portfolio-tabs { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.portfolio-tab {
  border: 1px solid var(--border); background: var(--surface); border-radius: 8px;
  padding: 8px 16px; cursor: pointer; font-weight: 600; font-size: 13.5px; color: var(--text-muted);
}
.portfolio-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

input.units-input {
  width: 100px; padding: 5px 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px;
}
input.price-input {
  width: 110px; padding: 5px 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px;
}

.fund-select { max-width: 340px; margin-bottom: 12px; }
select, .fund-select select {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; background: #fff;
}

.chart-wrap { position: relative; height: 320px; }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(20, 25, 35, 0.45);
  display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal-overlay[hidden] { display: none; }
.modal {
  background: var(--surface); border-radius: var(--radius); width: min(720px, 100%);
  max-height: 85vh; display: flex; flex-direction: column; box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-header h2 { margin: 0; font-size: 16px; }
.modal-body { padding: 16px 20px; overflow-y: auto; }
.modal-footer { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }
.icon-btn { border: none; background: none; font-size: 20px; cursor: pointer; color: var(--text-muted); line-height: 1; }
.update-actions { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--primary-dark); color: #fff; padding: 10px 18px; border-radius: 8px;
  font-size: 13.5px; box-shadow: var(--shadow); z-index: 200;
}
.toast.error { background: var(--negative); }

.empty-state { text-align: center; color: var(--text-muted); padding: 40px 0; }

@media (max-width: 640px) {
  .topbar { padding: 10px 14px; }
  main { padding: 14px; }
}