/* ======= Design Tokens ======= */
:root {
  --bg: #08111f;
  --bg-panel: #0f1a2b;
  --bg-soft: #12233a;
  --line: #1f3655;
  --text: #ecf4ff;
  --muted: #8ea8c7;
  --accent: #27c3ff;
  --good: #27d980;
  --warn: #ffcc4d;
  --bad: #ff6b7d;
  --radius: 10px;
  --radius-sm: 6px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(180deg, #050b15 0%, #09101e 100%);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

body.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

/* ======= Common Shared ======= */
.page-shell { max-width: 1180px; margin: 0 auto; padding: 24px; }

.card, .panel, .metric-card {
  background: rgba(15, 26, 43, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.auth-card { width: min(420px, calc(100vw - 32px)); padding: 28px; }

.brand { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.brand h1, .brand h2 { margin: 0; font-size: 28px; }
.brand p { color: var(--muted); margin: 6px 0 0; }

.tag {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(39, 195, 255, 0.12);
  color: var(--accent);
  font-size: 11px;
  white-space: nowrap;
}
.tag-paper {
  background: rgba(255, 204, 77, 0.18);
  color: var(--warn);
  font-weight: 600;
}
.tag-live {
  background: rgba(39, 217, 128, 0.18);
  color: var(--good);
  font-weight: 600;
}

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }

input, select, button, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #0b1524;
  color: var(--text);
  padding: 10px 12px;
  font-size: 13px;
}

button {
  cursor: pointer;
  background: linear-gradient(135deg, #12a8ff 0%, #27d980 100%);
  color: #06101a;
  font-weight: 700;
}
button.secondary { background: var(--bg-soft); color: var(--text); }
button.btn-sm { width: auto; padding: 6px 14px; font-size: 12px; border-radius: var(--radius-sm); }

.form-row { margin-bottom: 16px; }
.helper, .status-text, .small { color: var(--muted); font-size: 12px; }

/* ======= Settings page topbar ======= */
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 24px; }
.topbar nav { display: flex; gap: 10px; }

.nav-link {
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  background: rgba(15, 26, 43, 0.85);
  font-size: 13px;
}
.nav-link.active { border-color: var(--accent); color: var(--accent); }

/* ======= Metrics grid (settings page uses this) ======= */
.metrics-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-bottom: 20px; }
.metric-card { padding: 18px; }
.metric-card .label { color: var(--muted); font-size: 12px; }
.metric-card .value { margin-top: 8px; font-size: 28px; font-weight: 700; }
.metric-card .value.good { color: var(--good); }

.layout-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 16px; }
.panel { padding: 16px; }
.panel h3 { margin: 0 0 8px 0; font-size: 14px; font-weight: 600; }

/* ======= Panel Header ======= */
.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.panel-header h3 { margin: 0; font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); font-weight: 600; }
.panel-header-meta { display: flex; align-items: center; gap: 8px; }

.badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 20px; height: 20px; padding: 0 6px;
  border-radius: 999px; background: rgba(39, 195, 255, 0.15);
  color: var(--accent); font-size: 11px; font-weight: 600;
}

/* ======= Data Tables ======= */
.data-table-wrap { overflow-x: auto; max-height: 260px; overflow-y: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 12px; white-space: nowrap; }
.data-table th { position: sticky; top: 0; background: var(--bg-panel); color: var(--muted); font-weight: 500; text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--line); font-size: 11px; text-transform: uppercase; letter-spacing: 0.3px; }
.data-table td { padding: 7px 10px; border-bottom: 1px solid rgba(31, 54, 85, 0.25); }
.data-table tbody tr:hover { background: rgba(39, 195, 255, 0.04); }
.data-table .cell-good { color: var(--good); }
.data-table .cell-bad { color: var(--bad); }
.data-table .cell-warn { color: var(--warn); }
.data-table .cell-mono { font-family: "Cascadia Code", Consolas, monospace; font-size: 11px; }
.data-table .empty-row td { text-align: center; color: var(--muted); padding: 20px; }

/* Direction labels */
.side-buy { color: var(--good); font-weight: 600; }
.side-sell { color: var(--bad); font-weight: 600; }

/* Table action buttons */
.btn-action {
  padding: 3px 8px; font-size: 11px; border-radius: 4px; cursor: pointer;
  background: rgba(39, 195, 255, 0.12); color: var(--accent); border: 1px solid rgba(39, 195, 255, 0.25);
  white-space: nowrap;
}
.btn-action:hover { background: rgba(39, 195, 255, 0.25); }
.btn-action.btn-danger, .btn-danger {
  background: rgba(255, 107, 125, 0.12); color: var(--bad); border-color: rgba(255, 107, 125, 0.25);
}
.btn-action.btn-danger:hover, .btn-danger:hover { background: rgba(255, 107, 125, 0.25); }

/* ======= Feeds & Lists ======= */
.live-feed, .history-list { max-height: 420px; overflow: auto; display: grid; gap: 6px; }
.feed-item, .history-item { border: 1px solid var(--line); background: rgba(7, 17, 30, 0.9); border-radius: var(--radius-sm); padding: 8px 10px; }
.feed-item .event-type { font-size: 11px; color: var(--accent); }
.feed-item pre { margin: 4px 0 0; white-space: pre-wrap; font-family: "Cascadia Code", Consolas, monospace; font-size: 11px; line-height: 1.4; }

.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }

.notice { padding: 12px 14px; border-radius: var(--radius-sm); margin-bottom: 16px; border: 1px solid var(--line); }
.notice.success { color: var(--good); background: rgba(39, 217, 128, 0.1); }
.notice.error { color: var(--bad); background: rgba(255, 107, 125, 0.1); }

.kv-list { display: grid; gap: 8px; }
.compact-kv { gap: 6px; }
.kv-row { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; }
.kv-row span { color: var(--muted); }
.kv-row strong { font-weight: 500; }

.stack-list { display: grid; gap: 6px; max-height: 300px; overflow: auto; }
.side-scroll { max-height: 220px; }
.compact-list { max-height: 280px; }

.stack-item { border: 1px solid var(--line); background: rgba(7, 17, 30, 0.9); border-radius: var(--radius-sm); padding: 8px 10px; }
.stack-item .title { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 4px; font-size: 13px; }
.stack-item .title strong.good { color: var(--good); }
.stack-item .title strong.warn { color: var(--warn); }
.stack-item .title strong.bad { color: var(--bad); }

.inline-actions { display: flex; gap: 8px; align-items: center; }
.divider-line { height: 1px; background: var(--line); margin: 16px 0; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }

.source-pill {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; width: auto; padding: 5px 10px;
  border-radius: 999px; border: 1px solid var(--line);
  background: rgba(18, 35, 58, 0.88); color: var(--muted); font-size: 12px;
}
.source-pill.good { color: var(--good); border-color: rgba(39, 217, 128, 0.28); background: rgba(39, 217, 128, 0.08); }
.source-pill.warn { color: var(--warn); border-color: rgba(255, 204, 77, 0.28); background: rgba(255, 204, 77, 0.08); }
.source-pill.bad { color: var(--bad); border-color: rgba(255, 107, 125, 0.28); background: rgba(255, 107, 125, 0.08); }

.mini-button { width: auto; padding: 6px 10px; border-radius: var(--radius-sm); font-size: 12px; }

/* ======= Dashboard Layout ======= */
.dash-shell { max-width: 1600px; margin: 0 auto; padding: 12px 16px; }

.dash-topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0; margin-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.dash-topbar-left { display: flex; align-items: center; gap: 16px; }
.dash-topbar-right { display: flex; align-items: center; gap: 12px; }
.dash-logo { margin: 0; font-size: 18px; font-weight: 700; color: var(--text); white-space: nowrap; }
.dash-logo span { color: var(--accent); }
.dash-meta { display: flex; align-items: center; gap: 10px; }
.dash-meta-text { color: var(--muted); font-size: 11px; }
.dash-nav { display: flex; gap: 6px; }
.dash-actions { display: flex; gap: 6px; }

/* Stream indicators in topbar */
.stream-indicators { display: flex; gap: 6px; }
.stream-dot {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 8px; border-radius: 999px;
  font-size: 10px; font-weight: 500;
  background: rgba(18, 35, 58, 0.88);
  border: 1px solid var(--line);
  color: var(--muted);
}
.stream-dot.good { color: var(--good); border-color: rgba(39, 217, 128, 0.35); }
.stream-dot.warn { color: var(--warn); border-color: rgba(255, 204, 77, 0.35); }
.stream-dot.bad { color: var(--bad); border-color: rgba(255, 107, 125, 0.35); }
.stream-dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* KPI Strip */
.kpi-strip {
  display: flex; align-items: center; gap: 0;
  padding: 10px 16px; margin-bottom: 12px;
  background: rgba(15, 26, 43, 0.7);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.kpi-item { display: flex; flex-direction: column; align-items: center; flex: 1; gap: 2px; }
.kpi-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.4px; }
.kpi-value { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }
.kpi-value.good { color: var(--good); }
.kpi-value.bad { color: var(--bad); }
.kpi-sub { display: block; font-size: 11px; color: var(--text-tertiary); margin-top: 2px; font-variant-numeric: tabular-nums; }
.kpi-sub-label { opacity: 0.7; }
.kpi-tag { font-size: 13px; padding: 2px 10px; border-radius: 999px; background: rgba(39, 195, 255, 0.12); color: var(--accent); }
.kpi-divider { width: 1px; height: 36px; background: var(--line); flex-shrink: 0; }

/* Dashboard Body */
.dash-body { display: grid; grid-template-columns: 1fr 320px; gap: 12px; }
.dash-col-main { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.dash-col-side { display: flex; flex-direction: column; gap: 12px; min-width: 0; }

/* Chart Container - FIXED HEIGHT */
.chart-panel { position: relative; }
.chart-container { position: relative; height: 240px; width: 100%; }
.chart-container canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; }

/* ======= Scrollbar ======= */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(39, 195, 255, 0.2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(39, 195, 255, 0.4); }

/* ======== Responsive ======= */
@media (max-width: 1200px) {
  .dash-body { grid-template-columns: 1fr; }
  .dash-col-side { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
  .settings-switches-grid { grid-template-columns: 1fr; }
}

@media (max-width: 960px) {
  .metrics-grid, .layout-grid, .settings-grid { grid-template-columns: 1fr; }
  .topbar, .dash-topbar { flex-direction: column; align-items: flex-start; }
  .dash-topbar-right { flex-wrap: wrap; }
  .kpi-strip { flex-wrap: wrap; gap: 8px; }
  .kpi-divider { display: none; }
  .dash-col-side { grid-template-columns: 1fr; }
  .settings-tabs { overflow-x: auto; }
}

/* ======= Settings Tabs ======= */
.settings-tabs {
  display: flex; gap: 0; margin-bottom: 16px;
  border-bottom: 2px solid var(--line);
}
.settings-tab {
  width: auto; padding: 10px 20px;
  background: transparent; border: none; border-bottom: 2px solid transparent;
  color: var(--muted); font-size: 13px; font-weight: 500;
  cursor: pointer; white-space: nowrap;
  margin-bottom: -2px;
  transition: color 0.2s, border-color 0.2s;
}
.settings-tab:hover { color: var(--text); }
.settings-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.settings-tab-pane { display: none; }
.settings-tab-pane.active { display: block; }

/* ======= Form Groups with Tooltip ======= */
.form-group {
  position: relative;
  margin-bottom: 0;
}
.form-group label {
  display: flex; align-items: center; gap: 4px;
  font-size: 13px; color: var(--muted); margin-bottom: 6px;
  cursor: default;
}
.form-group .form-unit {
  position: absolute; right: 10px; bottom: 10px;
  font-size: 11px; color: var(--muted); pointer-events: none;
}
.tip-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px; border-radius: 50%;
  background: rgba(39, 195, 255, 0.15); color: var(--accent);
  font-size: 10px; font-style: normal; font-weight: 700;
  cursor: help; flex-shrink: 0;
}

/* ======= Floating Tooltip ======= */
.settings-tooltip {
  position: fixed; z-index: 9999;
  max-width: 360px; padding: 12px 16px;
  background: #162a47; border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  color: var(--text); font-size: 12px; line-height: 1.55;
  pointer-events: none;
  animation: tooltipFadeIn 0.15s ease-out;
}
@keyframes tooltipFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ======= Symbol Searchable Dropdown ======= */
.symbol-select-wrap { position: relative; }
.symbol-search {
  width: 100%; padding: 8px 12px;
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm);
  color: var(--text); font-size: 13px; outline: none;
}
.symbol-search:focus { border-color: var(--accent); }
.symbol-dropdown {
  display: none; position: absolute; left: 0; right: 0; top: 100%;
  max-height: 280px; overflow-y: auto; z-index: 1000;
  background: var(--bg-panel); border: 1px solid var(--line); border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}
.symbol-dropdown.open { display: block; }
.symbol-option {
  padding: 8px 12px; cursor: pointer; display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; border-bottom: 1px solid rgba(31,54,85,0.2);
}
.symbol-option:hover, .symbol-option.active { background: rgba(39,195,255,0.1); }
.symbol-option .sym-id { color: var(--text); font-weight: 500; }
.symbol-option .sym-desc { color: var(--muted); font-size: 11px; }

/* ======= Switch Cards ======= */
.settings-switches-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
}
.switch-card {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px; cursor: default;
}
.switch-header { display: flex; align-items: center; gap: 14px; }
.switch-icon { font-size: 28px; flex-shrink: 0; line-height: 1; }
.switch-info h4 { margin: 0; font-size: 14px; font-weight: 600; }
.switch-info p { margin: 4px 0 0; font-size: 12px; color: var(--muted); }

/* Toggle switch */
.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; cursor: pointer; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: #1a2a40; border: 1px solid var(--line);
  border-radius: 999px; transition: background 0.25s;
}
.toggle-slider::before {
  content: ""; position: absolute; left: 3px; top: 3px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--muted); transition: transform 0.25s, background 0.25s;
}
.toggle-switch input:checked + .toggle-slider { background: rgba(39, 217, 128, 0.25); border-color: rgba(39, 217, 128, 0.5); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); background: var(--good); }

/* ======= Diff Panel ======= */
.diff-panel { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.diff-title { font-weight: 600; margin-bottom: 8px; color: var(--text-secondary); }
.diff-row { display: flex; align-items: center; gap: 12px; padding: 4px 0; font-size: 13px; border-bottom: 1px solid var(--border); }
.diff-row:last-child { border-bottom: none; }
.diff-field { flex: 0 0 180px; color: var(--text-secondary); }
.diff-old { color: var(--bad); text-decoration: line-through; flex: 1; }
.diff-new { color: var(--good); flex: 1; }
.diff-arrow { color: var(--text-tertiary); }
.diff-empty { color: var(--text-tertiary); font-style: italic; padding: 8px 0; }

/* ======= Confirmation Dialog ======= */
.confirm-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(0, 0, 0, 0.65);
  display: grid; place-items: center;
  animation: overlayFadeIn 0.2s ease-out;
}
@keyframes overlayFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.confirm-dialog {
  width: min(480px, calc(100vw - 32px));
  padding: 24px;
}
.confirm-dialog h3 { color: var(--bad); margin: 0 0 8px; font-size: 16px; }
.confirm-changes {
  max-height: 200px; overflow: auto;
  margin: 12px 0; padding: 10px;
  background: rgba(7, 17, 30, 0.9);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.confirm-change-item {
  display: flex; justify-content: space-between; padding: 4px 0;
  font-size: 12px; border-bottom: 1px solid rgba(31, 54, 85, 0.2);
}
.confirm-change-item .field { color: var(--accent); font-weight: 500; }
.confirm-change-item .old-val { color: var(--bad); text-decoration: line-through; }
.confirm-change-item .new-val { color: var(--good); font-weight: 600; }
.confirm-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }