:root {
  --bg: #F7F5F1;
  --surface: #FFFFFF;
  --border: #E1DCD0;
  --text: #22201B;
  --muted: #74705F;
  --accent: #1B2A4A;
  --up: #B23A3A;
  --down: #2C5FA8;
  --amber: #A8642E;
  --good: #2E7D4F;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171D;
    --surface: #1A1E25;
    --border: #2B3038;
    --text: #E9E7DF;
    --muted: #98917F;
    --accent: #8FA3CE;
    --up: #D97575;
    --down: #7CA6E2;
    --amber: #D89B5D;
    --good: #6FBE8F;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
}
.mono { font-family: "Cascadia Code", "D2Coding", Consolas, ui-monospace, monospace; font-variant-numeric: tabular-nums; }
.muted-inline { color: var(--muted); font-size: 12.5px; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.brand { font-weight: 700; font-size: 18px; }
.env-badge { font-family: monospace; font-size: 12px; color: var(--muted); }
.topnav { display: flex; align-items: center; gap: 16px; font-size: 13.5px; }
.topnav a { color: var(--muted); text-decoration: none; }
.topnav a:hover { color: var(--text); }
.link-button { background: none; border: none; padding: 0; color: var(--muted); font-size: 13.5px; cursor: pointer; }
.link-button:hover { color: var(--text); }

.container { max-width: 960px; margin: 0 auto; padding: 24px; display: flex; flex-direction: column; gap: 36px; }

.snapshot { display: flex; gap: 24px; flex-wrap: wrap; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 12px 18px; }
.stat-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.stat-value { font-family: monospace; font-size: 18px; font-variant-numeric: tabular-nums; }
.pnl-up { color: var(--up); }
.pnl-down { color: var(--down); }

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

table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: 13.5px; vertical-align: middle; }
thead th { font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); background: var(--bg); }
tbody tr:last-child td { border-bottom: none; }
.empty-note { color: var(--muted); font-size: 13px; }

.chip { display: inline-block; padding: 2px 8px; border-radius: 3px; font-size: 11.5px; font-family: monospace; }
.chip-status-pending, .chip-status-sent { background: color-mix(in srgb, var(--amber) 18%, transparent); color: var(--amber); }
.chip-status-filled { background: color-mix(in srgb, var(--good) 18%, transparent); color: var(--good); }
.chip-status-failed, .chip-status-rejected { background: color-mix(in srgb, var(--up) 18%, transparent); color: var(--up); }
.chip-level-info { background: color-mix(in srgb, var(--down) 18%, transparent); color: var(--down); }
.chip-level-warn { background: color-mix(in srgb, var(--amber) 18%, transparent); color: var(--amber); }
.chip-level-error { background: color-mix(in srgb, var(--up) 18%, transparent); color: var(--up); }
.chip-signal-vi { background: color-mix(in srgb, var(--amber) 18%, transparent); color: var(--amber); }
.chip-signal-fluct_up { background: color-mix(in srgb, var(--up) 18%, transparent); color: var(--up); }
.chip-signal-fluct_down { background: color-mix(in srgb, var(--down) 18%, transparent); color: var(--down); }
.chip-signal-volume_surge { background: color-mix(in srgb, var(--good) 18%, transparent); color: var(--good); }

.inline-form { display: inline-block; margin-right: 6px; }
.stacked-form { display: flex; flex-direction: column; gap: 10px; max-width: 360px; }
.stacked-form label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.stacked-form label.checkbox-label { flex-direction: row; align-items: center; gap: 6px; }
.stacked-form label.checkbox-label input { width: auto; }
input, select { padding: 6px 8px; border: 1px solid var(--border); border-radius: 4px; background: var(--bg); color: var(--text); font-size: 14px; }
button { padding: 6px 14px; border: 1px solid var(--accent); border-radius: 4px; background: var(--accent); color: var(--bg); cursor: pointer; font-size: 13.5px; }
button.danger { background: transparent; color: var(--up); border-color: var(--up); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

.new-strategy { margin-top: 14px; }
.new-strategy summary { cursor: pointer; font-size: 13.5px; color: var(--muted); }

.status-cell { display: inline-flex; align-items: center; gap: 7px; }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.status-dot.on { background: var(--good); }
.status-dot.off { background: var(--muted); }
.status-text-on { color: var(--good); font-size: 13px; }
.status-text-off { color: var(--muted); font-size: 13px; }

.log-filter-form { display: flex; gap: 8px; align-items: center; }
.pagination { display: flex; gap: 14px; align-items: center; justify-content: center; font-size: 13px; }
.pagination a { color: var(--accent); text-decoration: none; }
.pagination a:hover { text-decoration: underline; }
.pagination-disabled { color: var(--muted); opacity: 0.5; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 13.5px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
  z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast-error { border-color: var(--up); color: var(--up); }
.toast-ok { border-color: var(--good); color: var(--good); }

.strategy-type-cell, .symbol-chart-cell { cursor: pointer; text-decoration: underline; text-decoration-color: var(--border); text-underline-offset: 3px; }
.strategy-type-cell:hover, .symbol-chart-cell:hover { color: var(--accent); text-decoration-color: var(--accent); }
.strategy-type-cell:focus-visible, .symbol-chart-cell:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

#strategy-info-dialog, #strategy-edit-dialog, #chart-dialog {
  max-width: 480px;
  width: calc(100% - 32px);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  background: var(--surface);
  color: var(--text);
}
#chart-dialog { max-width: 760px; }
#strategy-info-dialog::backdrop, #strategy-edit-dialog::backdrop, #chart-dialog::backdrop { background: rgba(0, 0, 0, 0.45); }
#strategy-info-dialog h2, #strategy-edit-dialog h2, #chart-dialog h2 { font-size: 18px; margin: 0 22px 12px 0; font-family: inherit; }
#chart-container { width: 100%; overflow-x: auto; }
#chart-container svg { display: block; min-width: 640px; }

.index-chart-block { margin-top: 8px; }
.index-chart-block h3 { font-size: 15px; margin: 0 0 6px 0; }
#index-chart-container { width: 100%; overflow-x: auto; position: relative; }
#index-chart-container svg { display: block; min-width: 640px; }
.candle-hit { cursor: pointer; }
.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12.5px;
  line-height: 1.5;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  z-index: 10;
  display: none;
}
#strategy-info-dialog h3 { font-size: 13px; color: var(--muted); margin: 18px 0 8px 0; text-transform: uppercase; letter-spacing: 0.04em; }
#strategy-info-dialog p { font-size: 14px; line-height: 1.7; margin: 0; }
#strategy-info-image { width: 100%; height: auto; margin: 14px 0; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); }
#strategy-info-params { margin: 0; }
#strategy-info-params dt { font-family: monospace; font-size: 13px; color: var(--text); margin-top: 8px; }
#strategy-info-params dd { margin: 2px 0 0 0; font-size: 13px; color: var(--muted); }
#strategy-edit-form { margin-top: 8px; }
.dialog-close-form { display: flex; justify-content: flex-end; margin: -8px -8px 0 0; }
.dialog-close {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
}
.dialog-close:hover { color: var(--text); }

/* CSS만으로 동작하는 탭 (라디오 입력 + 라벨, JS 없음) */
.tabs { display: flex; flex-direction: column; gap: 16px; }
.tabs input[type="radio"] { position: absolute; opacity: 0; pointer-events: none; }
.tab-nav { display: flex; gap: 4px; border-bottom: 1px solid var(--border); }
.tab-nav label {
  padding: 8px 16px;
  font-size: 13.5px;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab-nav label:hover { color: var(--text); }
.tab-panel { display: none; flex-direction: column; gap: 20px; }

#tab-dashboard:checked ~ .tab-nav label[for="tab-dashboard"],
#tab-strategies:checked ~ .tab-nav label[for="tab-strategies"],
#tab-realtime:checked ~ .tab-nav label[for="tab-realtime"],
#tab-positions:checked ~ .tab-nav label[for="tab-positions"],
#tab-orders:checked ~ .tab-nav label[for="tab-orders"],
#tab-screener:checked ~ .tab-nav label[for="tab-screener"],
#tab-issues:checked ~ .tab-nav label[for="tab-issues"],
#tab-logs:checked ~ .tab-nav label[for="tab-logs"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

#tab-dashboard:checked ~ #panel-dashboard,
#tab-strategies:checked ~ #panel-strategies,
#tab-realtime:checked ~ #panel-realtime,
#tab-positions:checked ~ #panel-positions,
#tab-orders:checked ~ #panel-orders,
#tab-screener:checked ~ #panel-screener,
#tab-issues:checked ~ #panel-issues,
#tab-logs:checked ~ #panel-logs {
  display: flex;
}

.auth-card {
  max-width: 360px;
  margin: 60px auto 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 28px;
}
.auth-card .stacked-form { max-width: none; margin-top: 16px; }
.error-note { color: var(--up); font-size: 13px; margin: 10px 0 0 0; }