/* Trader Strategy Lab — offline design system */
:root {
  color-scheme: dark;
  --bg: #080b12;
  --bg-soft: #0c111b;
  --panel: #0f1622;
  --panel-2: #121b2a;
  --panel-3: #172235;
  --border: #1d2a3d;
  --border-soft: #162234;
  --text: #e6edf7;
  --text-soft: #a7b6cc;
  --muted: #6d7f98;
  --brand: #5b8cff;
  --brand-2: #8b5cf6;
  --cyan: #22d3ee;
  --green: #34d399;
  --green-soft: rgba(52, 211, 153, 0.12);
  --red: #fb7185;
  --red-soft: rgba(251, 113, 133, 0.12);
  --amber: #fbbf24;
  --amber-soft: rgba(251, 191, 36, 0.12);
  --blue-soft: rgba(91, 140, 255, 0.12);
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.28);
  --mono: "SFMono-Regular", "Cascadia Code", "JetBrains Mono", Consolas, monospace;
  --sans: "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(1200px 600px at 20% -10%, rgba(91, 140, 255, 0.10), transparent 60%),
              radial-gradient(900px 500px at 100% 0%, rgba(139, 92, 246, 0.08), transparent 55%),
              var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-decoration: none; }
a:hover { color: #8fb0ff; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0; }
button, input, select, textarea { font: inherit; }
::selection { background: rgba(91, 140, 255, 0.35); }

/* scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #24344c; border-radius: 8px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #314967; }

/* ── shell ─────────────────────────────────────────────────────────────── */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 242px;
  flex: 0 0 242px;
  padding: 18px 14px;
  border-right: 1px solid var(--border-soft);
  background: linear-gradient(180deg, rgba(15, 22, 34, 0.92), rgba(8, 11, 18, 0.96));
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 18px;
  z-index: 40;
}
.brand { display: flex; align-items: center; gap: 11px; padding: 4px 6px 10px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 8px 24px rgba(91, 140, 255, 0.35);
  font-weight: 800; color: #fff; font-size: 17px; letter-spacing: -0.04em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-weight: 700; font-size: 15px; }
.brand-sub { color: var(--muted); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.nav { display: flex; flex-direction: column; gap: 3px; }
.nav-label { color: var(--muted); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; padding: 8px 10px 4px; }
.nav a {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 10px; border-radius: 9px;
  color: var(--text-soft); font-weight: 500; font-size: 13.5px;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav a:hover { background: rgba(91, 140, 255, 0.07); color: var(--text); }
.nav a.active { background: linear-gradient(90deg, rgba(91, 140, 255, 0.20), rgba(139, 92, 246, 0.08)); color: #fff; box-shadow: inset 0 0 0 1px rgba(91, 140, 255, 0.22); }
.nav a svg { width: 18px; height: 18px; opacity: 0.85; }
.sidebar-foot { margin-top: auto; display: flex; flex-direction: column; gap: 8px; padding: 10px 6px 2px; }
.status-pill { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); box-shadow: 0 0 0 3px rgba(109, 127, 152, 0.12); }
.dot.ok { background: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }
.dot.warn { background: var(--amber); box-shadow: 0 0 0 3px var(--amber-soft); }
.dot.bad { background: var(--red); box-shadow: 0 0 0 3px var(--red-soft); }
.sidebar-foot .muted { font-size: 11px; }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 28px 14px;
  position: sticky; top: 0; z-index: 30;
  background: linear-gradient(180deg, rgba(8, 11, 18, 0.94), rgba(8, 11, 18, 0.72));
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
}
.topbar-left { display: flex; align-items: center; gap: 14px; min-width: 0; }
.topbar h1 { font-size: 21px; }
.topbar .sub { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.topbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.content { padding: 10px 28px 40px; max-width: 1600px; width: 100%; }
.burger { display: none; background: transparent; border: 1px solid var(--border); color: var(--text); border-radius: 9px; padding: 7px 9px; cursor: pointer; }

/* ── grid/cards ────────────────────────────────────────────────────────── */
.grid { display: grid; gap: 14px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.card {
  background: linear-gradient(180deg, rgba(18, 27, 42, 0.92), rgba(13, 19, 30, 0.96));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-width: 0;
}
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 15px 17px 0; }
.card-title { font-size: 14px; font-weight: 600; }
.card-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.card-body { padding: 15px 17px 17px; }
.card-body.tight { padding: 10px 12px 12px; }
.card-body.flush { padding: 0; }

/* KPI */
.kpi-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.kpi {
  background: linear-gradient(180deg, rgba(18, 27, 42, 0.9), rgba(13, 19, 30, 0.95));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 15px;
  min-width: 0;
  position: relative;
  overflow: hidden;
}
.kpi::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--brand); opacity: 0.5; }
.kpi.green::after { background: var(--green); }
.kpi.red::after { background: var(--red); }
.kpi.amber::after { background: var(--amber); }
.kpi.purple::after { background: var(--brand-2); }
.kpi-label { color: var(--muted); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.kpi-value { font-size: 23px; font-weight: 650; margin-top: 6px; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.kpi-sub { color: var(--text-soft); font-size: 11.5px; margin-top: 3px; }

/* text helpers */
.muted { color: var(--muted); }
.soft { color: var(--text-soft); }
.positive { color: var(--green); }
.negative { color: var(--red); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.tiny { font-size: 11px; }
.small { font-size: 12px; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.center { text-align: center; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
.section-title { display: flex; align-items: center; gap: 9px; margin: 22px 0 12px; }
.section-title h2 { font-size: 15px; font-weight: 600; }
.section-title .line { flex: 1; height: 1px; background: var(--border-soft); }

/* badges */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; white-space: nowrap; border: 1px solid transparent; }
.badge-maker { color: #a8c4ff; background: var(--blue-soft); border-color: rgba(91, 140, 255, 0.28); }
.badge-pair { color: #c4b5fd; background: rgba(139, 92, 246, 0.13); border-color: rgba(139, 92, 246, 0.28); }
.badge-taker { color: #fda4af; background: var(--red-soft); border-color: rgba(251, 113, 133, 0.25); }
.badge-tail { color: #fcd34d; background: var(--amber-soft); border-color: rgba(251, 191, 36, 0.25); }
.badge-ok { color: #86efac; background: var(--green-soft); border-color: rgba(52, 211, 153, 0.25); }
.badge-warn { color: #fcd34d; background: var(--amber-soft); border-color: rgba(251, 191, 36, 0.25); }
.badge-bad { color: #fda4af; background: var(--red-soft); border-color: rgba(251, 113, 133, 0.25); }
.badge-neutral { color: var(--text-soft); background: rgba(167, 182, 204, 0.08); border-color: rgba(167, 182, 204, 0.18); }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 9px; border-radius: 8px; background: var(--panel-2); border: 1px solid var(--border); color: var(--text-soft); font-size: 11.5px; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 8px 13px; border-radius: 9px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text); font-weight: 600; font-size: 12.5px;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}
.btn:hover { background: var(--panel-3); border-color: #2b405e; color: #fff; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(135deg, var(--brand), #4f6fe8); border-color: transparent; color: #fff; box-shadow: 0 6px 18px rgba(91, 140, 255, 0.28); }
.btn-primary:hover { background: linear-gradient(135deg, #6b98ff, #5a7bf0); }
.btn-ghost { background: transparent; }
.btn-danger { color: #fecdd3; border-color: rgba(251, 113, 133, 0.35); background: rgba(251, 113, 133, 0.08); }
.btn-sm { padding: 5px 9px; font-size: 11.5px; border-radius: 7px; }
.btn-icon { padding: 7px; }

/* forms */
.form { display: flex; flex-direction: column; gap: 12px; }
.form-row { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.field > span { color: var(--muted); font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; }
.input, .select {
  width: 100%; padding: 9px 11px; border-radius: 9px;
  border: 1px solid var(--border); background: #0b111b; color: var(--text);
  outline: none; transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input:focus, .select:focus { border-color: rgba(91, 140, 255, 0.6); box-shadow: 0 0 0 3px rgba(91, 140, 255, 0.12); }
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 30px; }
.check { display: flex; align-items: center; gap: 8px; color: var(--text-soft); font-size: 12.5px; cursor: pointer; }
.check input { accent-color: var(--brand); width: 15px; height: 15px; }
.check-grid { display: flex; flex-wrap: wrap; gap: 8px 14px; }
.form-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding-top: 2px; }

/* tables */
.table-wrap { overflow: auto; max-width: 100%; }
table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
thead th {
  position: sticky; top: 0; z-index: 1;
  text-align: left; font-weight: 600; color: var(--muted); font-size: 10.5px;
  letter-spacing: 0.07em; text-transform: uppercase;
  padding: 9px 12px; background: #0d1420; border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td { padding: 9px 12px; border-bottom: 1px solid var(--border-soft); vertical-align: middle; }
tbody tr:hover { background: rgba(91, 140, 255, 0.045); }
tbody tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.mono { font-family: var(--mono); font-size: 11.5px; }
.table-empty { padding: 26px 14px; text-align: center; color: var(--muted); }

/* tabs */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 14px; overflow-x: auto; }
.tab {
  padding: 9px 13px; color: var(--muted); font-size: 12.5px; font-weight: 600;
  border: none; background: transparent; cursor: pointer; white-space: nowrap;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab.active { color: #fff; border-bottom-color: var(--brand); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fade 0.18s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: none; } }

/* alerts / banners */
.alert { display: flex; align-items: flex-start; gap: 10px; padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--panel-2); color: var(--text-soft); font-size: 12.5px; }
.alert-info { border-color: rgba(91, 140, 255, 0.3); background: rgba(91, 140, 255, 0.08); }
.alert-warn { border-color: rgba(251, 191, 36, 0.3); background: var(--amber-soft); color: #fde68a; }
.alert-error { border-color: rgba(251, 113, 133, 0.3); background: var(--red-soft); color: #fecdd3; }
.alert-ok { border-color: rgba(52, 211, 153, 0.3); background: var(--green-soft); color: #bbf7d0; }
.alert strong { color: var(--text); }
.jobbar { margin-bottom: 14px; }
.jobbar .bar { height: 5px; border-radius: 99px; background: #162234; overflow: hidden; margin-top: 8px; }
.jobbar .bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--brand), var(--brand-2)); width: 0; transition: width 0.4s ease; }

/* charts */
.chart { width: 100%; min-height: 240px; }
.chart-sm { min-height: 190px; }
.chart-lg { min-height: 320px; }
.chart-grid { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.chart-grid .full { grid-column: 1 / -1; }

/* empty state */
.empty { padding: 34px 18px; text-align: center; color: var(--muted); }
.empty h3 { color: var(--text); font-size: 15px; margin-bottom: 6px; }
.empty p { max-width: 540px; margin: 0 auto; font-size: 12.5px; line-height: 1.7; }

/* detail header */
.detail-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.detail-title { display: flex; flex-direction: column; gap: 7px; min-width: 0; }
.detail-title .addr { font-family: var(--mono); font-size: 12px; color: var(--muted); word-break: break-all; }
.detail-title h2 { font-size: 22px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; }
.metric-row { display: flex; align-items: baseline; gap: 8px; }
.metric-row .value { font-size: 19px; font-weight: 650; font-variant-numeric: tabular-nums; }
.metric-row .label { color: var(--muted); font-size: 11px; }

/* evidence */
.evidence { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.evidence .item { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 13px; background: var(--panel-2); }
.evidence .item h4 { font-size: 13px; margin-bottom: 7px; display: flex; align-items: center; justify-content: space-between; }
.evidence ul { margin: 0; padding-left: 17px; color: var(--text-soft); font-size: 12px; line-height: 1.7; }
.verdict { border-left: 2px solid var(--brand); padding: 12px 15px; background: rgba(91, 140, 255, 0.06); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-soft); font-size: 13px; line-height: 1.75; }
.verdict strong { color: var(--text); }

/* misc */
.copy { font-family: var(--mono); font-size: 11.5px; color: var(--muted); cursor: pointer; }
.copy:hover { color: var(--brand); }
.pill-row { display: flex; gap: 6px; flex-wrap: wrap; }
.stat-line { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--border-soft); font-size: 12.5px; }
.stat-line:last-child { border-bottom: none; }
.stat-line .k { color: var(--muted); }
.stat-line .v { font-variant-numeric: tabular-nums; font-weight: 600; }
.list { margin: 0; padding: 0; list-style: none; }
.list li { padding: 8px 0; border-bottom: 1px dashed var(--border-soft); display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 12.5px; }
.list li:last-child { border-bottom: none; }
.loading { display: inline-flex; gap: 5px; align-items: center; }
.loading i { width: 4px; height: 4px; border-radius: 50%; background: var(--brand); animation: blink 1s infinite ease-in-out; }
.loading i:nth-child(2) { animation-delay: 0.15s; }
.loading i:nth-child(3) { animation-delay: 0.3s; }
@keyframes blink { 0%, 100% { opacity: 0.2; transform: translateY(0); } 50% { opacity: 1; transform: translateY(-2px); } }
.scroll-y { max-height: 420px; overflow-y: auto; }

/* responsive */
@media (max-width: 1180px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .span-3 { grid-column: span 2; }
}
@media (max-width: 900px) {
  .sidebar { position: fixed; left: -260px; transition: left 0.2s ease; }
  .sidebar.open { left: 0; }
  .burger { display: inline-flex; }
  .content { padding: 10px 16px 34px; }
  .topbar { padding: 14px 16px 10px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .span-2, .span-3 { grid-column: span 1; }
  .chart-grid { grid-template-columns: 1fr; }
}

/* ── login ─────────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(900px 500px at 15% 0%, rgba(91, 140, 255, 0.16), transparent 60%),
    radial-gradient(700px 400px at 100% 100%, rgba(139, 92, 246, 0.12), transparent 55%),
    var(--bg);
}
.login-card {
  width: 100%;
  max-width: 400px;
  background: linear-gradient(180deg, rgba(18, 27, 42, 0.96), rgba(11, 17, 27, 0.98));
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
  padding: 28px 26px 24px;
}
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.login-brand .brand-mark { width: 44px; height: 44px; font-size: 19px; }
.login-title { font-size: 20px; font-weight: 650; letter-spacing: -0.02em; }
.login-sub { color: var(--muted); font-size: 12.5px; margin-top: 3px; line-height: 1.5; }
.login-form { display: flex; flex-direction: column; gap: 13px; margin-top: 6px; }
.login-error {
  border: 1px solid rgba(251, 113, 133, 0.35);
  background: var(--red-soft);
  color: #fecdd3;
  border-radius: 9px;
  padding: 9px 11px;
  font-size: 12px;
}
.login-note { margin-top: 16px; color: var(--muted); font-size: 11px; line-height: 1.6; text-align: center; }
.login-note code { color: var(--text-soft); font-family: var(--mono); }
.login-footer { margin-top: 18px; display: flex; justify-content: space-between; color: var(--muted); font-size: 10.5px; }