:root {
  --bg: #0f1420;
  --panel: #171d2b;
  --panel-2: #1e2536;
  --border: #2b3350;
  --text: #e6e9f2;
  --muted: #9aa4c0;
  --accent: #4c8dff;
  --buy: #ff5a6a;
  --sell: #3aa76d;
  --radius: 10px;
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
  --series-6: #008300;
  --series-7: #9085e9;
  --series-8: #e66767;
  --series-other: #5a6178;
}

:root[data-theme="light"] {
  --bg: #f5f6fa;
  --panel: #ffffff;
  --panel-2: #f0f1f6;
  --border: #dde1ee;
  --text: #1c2333;
  --muted: #6b7390;
  --accent: #3b6fe0;
  --buy: #d63447;
  --sell: #1f9d55;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --series-5: #e87ba4;
  --series-6: #008300;
  --series-7: #4a3aa7;
  --series-8: #e34948;
  --series-other: #a3a9bd;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f5f6fa;
    --panel: #ffffff;
    --panel-2: #f0f1f6;
    --border: #dde1ee;
    --text: #1c2333;
    --muted: #6b7390;
    --accent: #3b6fe0;
    --buy: #d63447;
    --sell: #1f9d55;
    --series-1: #2a78d6;
    --series-2: #eb6834;
    --series-3: #1baf7a;
    --series-4: #eda100;
    --series-5: #e87ba4;
    --series-6: #008300;
    --series-7: #4a3aa7;
    --series-8: #e34948;
    --series-other: #a3a9bd;
  }
}

#theme-toggle {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 40;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 15px;
}
#theme-toggle:hover { border-color: var(--accent); }

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "Malgun Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ---------- Login ---------- */
#login-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 320px;
  max-width: 88vw;
}

.login-box h1 {
  font-size: 18px;
  margin: 0 0 20px;
  text-align: center;
}

.login-box input {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
}

.login-box button {
  width: 100%;
  padding: 10px;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  color: white;
  font-size: 14px;
  cursor: pointer;
}

.login-box button:hover { opacity: 0.9; }

.error-msg {
  color: var(--buy);
  font-size: 13px;
  margin: -4px 0 12px;
  min-height: 16px;
}

/* ---------- App ---------- */
#app-view { width: 100%; margin: 0; padding: 24px 24px 60px; }

.topbar {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 24px;
}

.topbar h1 { font-size: 20px; margin: 0; }

.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topbar-actions button {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: border-color 0.15s, background 0.15s;
}

.topbar-actions button:hover { border-color: var(--accent); }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.panel h2 {
  font-size: 15px;
  margin: 0 0 16px;
  color: var(--muted);
}

.trade-form {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.8fr 0.8fr 0.6fr 0.9fr auto;
  gap: 10px;
  align-items: end;
}

#f-amount {
  color: var(--muted);
  cursor: default;
}

.date-input-wrap {
  display: flex;
  gap: 6px;
  min-width: 150px;
}

.date-mask {
  letter-spacing: 0.3px;
  min-width: 0;
  flex: 1 1 auto;
}

.cal-btn {
  flex: none;
  width: 32px;
  padding: 0;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.cal-btn:hover { border-color: var(--accent); }

.cal-popup {
  position: absolute;
  z-index: 60;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  width: 240px;
  max-width: calc(100vw - 16px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  animation: popIn 0.12s ease-out;
}

@keyframes popIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

.cal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 8px;
}

.cal-nav {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 5px;
  width: 26px;
  height: 26px;
  cursor: pointer;
}
.cal-nav:hover { border-color: var(--accent); }

.cal-weekdays, .cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  text-align: center;
}

.cal-weekdays span {
  font-size: 11px;
  color: var(--muted);
  padding-bottom: 4px;
}

.cal-cell {
  font-size: 12px;
  padding: 6px 0;
  border-radius: 6px;
  cursor: pointer;
}

.cal-cell.empty { cursor: default; }
.cal-cell[data-date]:hover { background: var(--panel-2); }
.cal-cell.today { color: var(--accent); font-weight: 600; }
.cal-cell.selected { background: var(--accent); color: #fff; }

.symbol-form {
  display: grid;
  grid-template-columns: 1.5fr 1fr auto;
  gap: 10px;
  align-items: end;
}

.symbol-form .memo-field {
  grid-column: 1 / -1;
}

.trade-form label, .symbol-form label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.trade-form input, .trade-form select,
.symbol-form input, .symbol-form select {
  width: 100%;
  padding: 9px 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  transition: border-color 0.15s;
}

.trade-form input:focus, .trade-form select:focus,
.symbol-form input:focus, .symbol-form select:focus,
.filter-row input:focus, .filter-row select:focus,
.modal-box input:focus, .modal-box select:focus,
.login-box input:focus {
  outline: none;
  border-color: var(--accent);
}

.trade-form button, .symbol-form button {
  padding: 10px 16px;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  color: white;
  cursor: pointer;
  font-size: 13px;
  white-space: nowrap;
  transition: opacity 0.15s;
}

.trade-form button:hover, .symbol-form button:hover { opacity: 0.9; }

.suggest-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin: 4px 0 0;
  padding: 4px;
  list-style: none;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-height: 220px;
  overflow-y: auto;
  z-index: 30;
}

.suggest-list li {
  padding: 8px 10px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

.suggest-list li:hover { background: var(--panel); }

.suggest-list .s-code { color: var(--text); font-weight: 600; }
.suggest-list .s-meta { color: var(--muted); font-size: 12px; white-space: nowrap; }

.filter-row {
  display: flex;
  align-items: end;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.filter-row > div { flex: none; }

.filter-row label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.filter-row select, .filter-row input {
  padding: 8px 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
}

.filter-row button {
  padding: 9px 14px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
}
.filter-row button:hover { border-color: var(--accent); }

/* ---------- avg-cost calculator ---------- */
.avg-calc-current {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 14px;
  line-height: 1.6;
}
.avg-calc-current strong { color: var(--text); font-weight: 600; }

.avg-calc-label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

#avg-calc-use-current {
  flex: none;
  padding: 0 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
}
#avg-calc-use-current:hover { border-color: var(--accent); }

.avg-calc-result {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.avg-calc-result .row { display: flex; justify-content: space-between; }
.avg-calc-result .row .k { color: var(--muted); }
.avg-calc-result .row .v { font-weight: 600; }

/* ---------- stat tiles ---------- */
.stat-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.stat-tile {
  flex: 1 1 160px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}

.stat-tile-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.stat-tile-value {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}

.stat-tile-sub {
  font-size: 12px;
  margin-top: 4px;
  color: var(--muted);
}
.stat-tile-sub.pos { color: var(--sell); }
.stat-tile-sub.neg { color: var(--buy); }

/* ---------- charts ---------- */
.chart-group { margin-bottom: 22px; }
.chart-group:last-child { margin-bottom: 0; }
.chart-group-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.alloc-track {
  display: flex;
  height: 28px;
  gap: 2px;
}
.alloc-seg {
  height: 100%;
  transition: opacity 0.15s;
}
.alloc-seg:first-child { border-radius: 6px 0 0 6px; }
.alloc-seg:last-child { border-radius: 0 6px 6px 0; }
.alloc-seg:hover { opacity: 0.85; }

.alloc-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 12px;
}
.alloc-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text);
}
.alloc-legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex: none;
}
.alloc-legend-pct { color: var(--muted); }

.pnl-chart { display: flex; flex-direction: column; gap: 10px; }
.pnl-row {
  display: grid;
  grid-template-columns: 96px 1fr 110px;
  align-items: center;
  gap: 10px;
}
.pnl-name {
  text-align: right;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pnl-track {
  position: relative;
  height: 18px;
  background: var(--panel-2);
  border-radius: 4px;
}
.pnl-track::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -4px;
  bottom: -4px;
  width: 1px;
  background: var(--border);
}
.pnl-bar {
  position: absolute;
  top: 0;
  bottom: 0;
  transition: opacity 0.15s;
}
.pnl-bar:hover { opacity: 0.85; }
.pnl-bar.pos { left: 50%; background: var(--sell); border-radius: 0 4px 4px 0; }
.pnl-bar.neg { right: 50%; background: var(--buy); border-radius: 4px 0 0 4px; }
.pnl-value { font-size: 12px; font-weight: 600; white-space: nowrap; }

.pnl-legend {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}
.avg-history-svg { display: block; overflow: visible; }
.chart-grid { stroke: var(--border); stroke-width: 1; }
.chart-axis { stroke: var(--border); stroke-width: 1; }
.chart-axis-label { fill: var(--muted); font-size: 10px; }
.chart-axis-label-avg { fill: var(--accent); }
.chart-axis-label-realized { fill: var(--buy); }
.chart-end-label { fill: var(--text); font-size: 11px; font-weight: 600; }
.chart-end-label-avg { fill: var(--accent); }
.chart-end-label-realized { fill: var(--buy); }
.chart-line { stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart-line-avg { stroke: var(--accent); }
.chart-line-realized { stroke: var(--buy); stroke-dasharray: 4 3; }
.chart-dot { stroke: var(--panel); stroke-width: 2; cursor: pointer; }
.chart-dot-buy { fill: var(--accent); }
.chart-dot-sell { fill: var(--muted); }
.chart-dot-avg { fill: var(--accent); }
.chart-dot-realized { fill: var(--buy); }

.chart-legend-line {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
.chart-legend-swatch {
  display: inline-block;
  width: 12px;
  height: 2px;
  margin-right: 6px;
  vertical-align: middle;
}
.chart-legend-avg { background: var(--accent); }
.chart-legend-realized { background: var(--buy); }

.pnl-legend-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  margin-right: 5px;
  vertical-align: middle;
}

.summary-row { cursor: pointer; transition: background 0.15s; }
.summary-row:hover { background: var(--panel-2); }
.summary-row.selected { background: var(--panel-2); box-shadow: inset 3px 0 0 var(--accent); }

.trade-filter-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 14px;
}

.currency-badge {
  display: inline-block;
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  margin-left: 6px;
}

.csv-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
  font-size: 13px;
  color: var(--muted);
  flex-wrap: wrap;
}

.csv-row input[type=file] { color: var(--muted); font-size: 12px; }

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 12px;
  padding: 0;
  text-decoration: underline;
}

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

th, td {
  text-align: right;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th:first-child, td:first-child, th:nth-child(2), td:nth-child(2) { text-align: left; }

th { color: var(--muted); font-weight: 500; }

.pos { color: var(--sell); }
.neg { color: var(--buy); }

.side-buy { color: var(--buy); }
.side-sell { color: var(--sell); }

.del-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
}
.del-btn:hover { color: var(--buy); }

.table-scroll { overflow-x: auto; }

.empty-msg { color: var(--muted); font-size: 13px; padding: 10px 0; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 50;
}

.modal-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 300px;
  max-width: 90vw;
  animation: modalPop 0.15s ease-out;
}

@keyframes modalPop {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

.modal-box.wide {
  width: 640px;
  max-width: 92vw;
  max-height: 85vh;
  overflow-y: auto;
}

.modal-box h2 { font-size: 15px; margin: 0 0 16px; }

.modal-box input {
  width: 100%;
  padding: 9px 10px;
  margin-bottom: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
}

.modal-actions { display: flex; gap: 8px; margin-top: 8px; }

.modal-actions button {
  flex: 1;
  padding: 9px;
  border-radius: 6px;
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 13px;
  background: var(--panel-2);
  color: var(--text);
}

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

@media (max-width: 700px) {
  .trade-form, .symbol-form { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  #app-view { padding: 16px 12px 40px; }
  #theme-toggle { top: 10px; right: 10px; width: 32px; height: 32px; font-size: 13px; }

  .topbar { margin-bottom: 18px; }
  .topbar h1 { font-size: 17px; }
  .topbar-actions button { flex: 1 1 auto; font-size: 12px; padding: 9px 8px; }

  .panel { padding: 14px; border-radius: 8px; margin-bottom: 14px; }
  .panel h2 { font-size: 14px; }

  .trade-form, .symbol-form { grid-template-columns: 1fr; }
  .symbol-form button { width: 100%; }

  .filter-row { flex-direction: column; align-items: stretch; }
  .filter-row > div, .filter-row button { width: 100%; }

  .csv-row { flex-direction: column; align-items: stretch; gap: 8px; }

  table { font-size: 12px; }
  th, td { padding: 7px 8px; }

  .modal-box { padding: 18px; }
  .modal-box.wide { width: calc(100vw - 24px); max-height: 80vh; }

  .pnl-row { grid-template-columns: 64px 1fr 84px; gap: 6px; }
  .pnl-name { font-size: 11px; }
  .pnl-value { font-size: 11px; }
  .alloc-legend { gap: 6px 12px; }
}