:root {
  color-scheme: light;
  font-family: Inter, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: #1d232c;
  background: #f3f4f2;
  font-synthesis: none;
  letter-spacing: 0;
  --ink: #1d232c;
  --muted: #6b7178;
  --line: #dfe2df;
  --surface: #ffffff;
  --sidebar: #20231f;
  --green: #16784b;
  --green-soft: #e7f5ed;
  --red: #bd312d;
  --red-soft: #fbeceb;
  --amber: #a75c00;
  --amber-soft: #fff2dc;
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; min-height: 100vh; background: #f3f4f2; }
button, input { font: inherit; letter-spacing: 0; }
button { cursor: pointer; }
.hidden { display: none !important; }

.login-view { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: #ecefeb; }
.login-panel { width: min(100%, 360px); display: grid; gap: 14px; padding: 32px; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; box-shadow: 0 16px 50px rgba(29, 35, 44, 0.08); }
.login-panel h1 { margin: 4px 0 2px; font-size: 22px; }
.login-panel p { margin: 0; color: var(--muted); font-size: 13px; }
.brand-mark { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 6px; background: var(--ink); color: #fff; font-weight: 800; }
.brand-mark.small { width: 34px; height: 34px; }
label { color: #434951; font-size: 13px; font-weight: 650; }
input { width: 100%; min-height: 42px; padding: 9px 11px; border: 1px solid #cdd1cd; border-radius: 5px; color: var(--ink); background: #fff; outline: none; }
input:focus { border-color: #3c7560; box-shadow: 0 0 0 3px rgba(22, 120, 75, 0.12); }
.button { min-height: 40px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 8px 14px; border: 1px solid transparent; border-radius: 5px; font-weight: 700; }
.button svg { width: 17px; }
.button.primary { color: #fff; background: var(--green); }
.button.primary:hover { background: #10683f; }
.button.secondary { color: var(--ink); background: #fff; border-color: var(--line); }
.button.secondary:hover { background: #f5f6f4; }
.button:disabled { opacity: 0.55; cursor: wait; }
.wide { width: 100%; }
.form-error, .form-success { min-height: 18px; font-size: 12px !important; }
.form-error { color: var(--red) !important; }
.form-success { color: var(--green) !important; }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 224px minmax(0, 1fr); }
.sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 20px 14px; background: var(--sidebar); color: #fff; }
.brand-row { display: flex; align-items: center; gap: 10px; padding: 0 8px 24px; border-bottom: 1px solid #393d38; }
.brand-row div:last-child { display: grid; gap: 2px; }
.brand-row span { color: #9ea49c; font-size: 11px; }
nav { display: grid; gap: 5px; padding-top: 18px; }
.nav-item { width: 100%; height: 42px; display: flex; align-items: center; gap: 11px; padding: 0 12px; border: 0; border-radius: 5px; color: #bfc4bd; background: transparent; text-align: left; }
.nav-item svg { width: 18px; }
.nav-item:hover, .nav-item.active { color: #fff; background: #343833; }
.sidebar-footer { margin-top: auto; display: flex; align-items: center; justify-content: space-between; padding: 14px 8px 0; border-top: 1px solid #393d38; }
.connection { display: flex; align-items: center; gap: 7px; color: #bfc4bd; font-size: 12px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #45c486; box-shadow: 0 0 0 3px rgba(69, 196, 134, 0.12); }
.icon-button { width: 34px; height: 34px; display: grid; place-items: center; border: 0; border-radius: 5px; color: #bfc4bd; background: transparent; }
.icon-button:hover { color: #fff; background: #343833; }
.icon-button svg { width: 17px; }

main { min-width: 0; }
.topbar { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 28px; background: #fff; border-bottom: 1px solid var(--line); }
.topbar h2 { margin: 0 0 4px; font-size: 19px; }
.topbar p { margin: 0; color: var(--muted); font-size: 12px; }
.header-status { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.badge { display: inline-flex; align-items: center; min-height: 26px; padding: 4px 9px; border-radius: 4px; font-size: 11px; font-weight: 750; }
.badge.neutral { color: #555b62; background: #eceeed; }
.badge.success { color: var(--green); background: var(--green-soft); }
.badge.warning { color: var(--amber); background: var(--amber-soft); }
.badge.danger { color: var(--red); background: var(--red-soft); }
.page { display: none; padding: 24px 28px 40px; }
.page.active { display: block; }

.risk-banner { min-height: 46px; display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; padding: 10px 14px; border: 1px solid; border-radius: 5px; font-size: 12px; }
.risk-banner div { display: flex; align-items: center; gap: 8px; }
.risk-banner svg { width: 18px; }
.risk-banner.locked { color: #8e2b28; background: var(--red-soft); border-color: #f2c5c2; }
.risk-banner.open { color: #126640; background: var(--green-soft); border-color: #bbdfca; }

.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.metric-card { min-height: 130px; padding: 16px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.metric-label { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 12px; }
.metric-label svg { width: 18px; color: #838a82; }
.metric-card > strong { display: inline-block; margin-top: 22px; font-size: 27px; line-height: 1; }
.metric-note { display: block; margin-top: 7px; color: var(--muted); font-size: 11px; }

.overview-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(260px, 0.8fr); gap: 12px; margin-top: 12px; }
.panel { min-width: 0; padding: 18px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.panel-heading, .section-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.panel-heading h3, .section-heading h3, .security-summary h3 { margin: 0; font-size: 14px; }
.panel-heading p { margin: 4px 0 0; color: var(--muted); font-size: 11px; }
.panel-heading > svg { width: 17px; color: var(--green); }
.mini-label { color: var(--muted); font-size: 10px; text-transform: uppercase; }
.chart-wrap { position: relative; height: 255px; margin-top: 16px; }
.markets-panel { align-self: stretch; }
.market-row { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 12px; border-bottom: 1px solid #eceeec; }
.market-row:last-child { border-bottom: 0; }
.market-row div { display: grid; gap: 4px; }
.market-row span { color: var(--muted); font-size: 10px; }
.market-row b { font-size: 15px; }

.activity-section { margin-top: 26px; }
.section-heading { margin-bottom: 12px; }
.section-heading span { color: var(--muted); font-size: 11px; }
.activity-list { border-top: 1px solid var(--line); }
.activity-row { min-height: 50px; display: grid; grid-template-columns: 115px 90px minmax(0, 1fr); align-items: center; gap: 14px; border-bottom: 1px solid var(--line); font-size: 12px; }
.activity-row time { color: var(--muted); }
.activity-level { width: fit-content; padding: 3px 7px; border-radius: 3px; color: #555b62; background: #e7e9e7; font-size: 10px; font-weight: 750; }
.activity-level.warning, .activity-level.error { color: var(--red); background: var(--red-soft); }
.empty-state { padding: 34px 0; color: var(--muted); font-size: 12px; text-align: center; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 5px; background: #fff; }
table { width: 100%; border-collapse: collapse; white-space: nowrap; }
th, td { height: 46px; padding: 0 13px; border-bottom: 1px solid #eceeec; font-size: 12px; text-align: left; }
th { color: var(--muted); background: #fafbfa; font-size: 10px; text-transform: uppercase; }
tbody tr:last-child td { border-bottom: 0; }
.empty-cell { height: 160px; color: var(--muted); text-align: center; }
.pnl-metric-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-bottom: 14px; }
.pnl-metric { min-height: 112px; }
.pnl-metric > strong { margin-top: 16px; font-size: 23px; }
.pnl-positive { color: var(--green); }
.pnl-negative { color: var(--red); }

.setup-layout { display: grid; grid-template-columns: minmax(0, 600px) minmax(240px, 340px); gap: 48px; align-items: start; }
.setup-form-section form { display: grid; gap: 11px; margin-top: 26px; }
.segmented { width: fit-content; display: grid; grid-template-columns: repeat(2, 1fr); gap: 3px; margin-bottom: 8px; padding: 3px; border: 1px solid var(--line); border-radius: 5px; background: #eceeec; }
.segmented label { cursor: pointer; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented span { min-width: 96px; height: 32px; display: grid; place-items: center; border-radius: 3px; color: var(--muted); }
.segmented input:checked + span { color: var(--ink); background: #fff; box-shadow: 0 1px 3px rgba(29, 35, 44, 0.1); }
.setup-form-section .button { width: fit-content; margin-top: 8px; }
.security-summary { padding: 18px 0; border-top: 2px solid var(--ink); }
.security-summary dl { margin: 18px 0 0; }
.security-summary dl div { min-height: 42px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); }
.security-summary dt { color: var(--muted); font-size: 11px; }
.security-summary dd { margin: 0; font-size: 12px; font-weight: 650; }
.security-summary .ok { color: var(--green); }
.security-summary .danger { color: var(--red); }

.mode-switch-bar { display: grid; grid-template-columns: minmax(180px, 1fr) auto; align-items: center; gap: 8px 24px; margin-bottom: 30px; padding: 16px 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.automation-status { margin: 20px 0 28px; padding: 20px 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.automation-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.automation-grid > div { display: grid; gap: 6px; padding: 14px; background: var(--surface); }
.automation-grid span { color: var(--muted); font-size: 12px; }
.automation-grid strong { font-size: 15px; }
.realtime-pnl-cell small { font-size: 12px; font-weight: 750; }
.execution-mode-form { display: flex; align-items: center; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.execution-mode-form .segmented { margin: 0; }
.execution-mode-form .form-error { flex-basis: 100%; margin: 0; }
.mode-switch-bar > div:first-child { display: grid; gap: 6px; }
.mode-switch-actions { display: flex; align-items: center; gap: 10px; }
.mode-switch-actions .segmented { margin: 0; }
.mode-switch-bar .form-error, .mode-switch-bar .form-success { grid-column: 1 / -1; margin: 0; }

.ai-page-heading > div { display: grid; gap: 5px; }
.ai-report { min-height: 270px; padding: 20px 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.ai-report-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.ai-report-header > div { display: grid; gap: 7px; }
.ai-report-header strong { font-size: 22px; }
.ai-summary { max-width: 900px; margin: 20px 0; color: #41474e; font-size: 14px; line-height: 1.7; }
.ai-decision-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.ai-decision { min-height: 150px; padding: 15px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.ai-decision-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ai-decision-header strong { font-size: 14px; }
.ai-decision p { margin: 13px 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.ai-decision dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 0; }
.ai-decision dl div { display: grid; gap: 3px; }
.ai-decision dt { color: var(--muted); font-size: 10px; }
.ai-decision dd { margin: 0; font-size: 12px; font-weight: 700; }
.ai-decision-actions { min-height: 40px; display: flex; align-items: end; margin-top: 14px; }
.ai-decision-actions .button { min-height: 36px; font-size: 12px; }
.button.danger { color: #fff; background: #b43b35; }
.button.danger:hover { background: #982f2a; }
.ai-risk-section { margin-top: 20px; }
.ai-risk-section ul { display: grid; gap: 7px; margin: 10px 0 0; padding-left: 18px; color: var(--muted); font-size: 12px; }
.ai-config-layout { margin-top: 36px; }

@media (max-width: 980px) {
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pnl-metric-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .overview-grid { grid-template-columns: 1fr; }
  .setup-layout { grid-template-columns: 1fr; gap: 30px; }
  .ai-decision-grid { grid-template-columns: 1fr; }
  .mode-switch-bar { grid-template-columns: 1fr; }
  .mode-switch-actions { justify-content: space-between; }
}

@media (max-width: 680px) {
  .automation-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .execution-mode-form { align-items: stretch; flex-direction: column; }
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 10; right: 0; bottom: 0; left: 0; top: auto; width: auto; height: 64px; flex-direction: row; align-items: center; padding: 7px 10px; border-top: 1px solid #393d38; }
  .brand-row, .sidebar-footer { display: none; }
  nav { width: 100%; grid-template-columns: repeat(4, 1fr); padding: 0; }
  .nav-item { height: 48px; justify-content: center; flex-direction: column; gap: 2px; padding: 3px; font-size: 10px; }
  .nav-item svg { width: 17px; height: 17px; }
  .topbar { min-height: 72px; padding: 13px 16px; }
  .topbar h2 { font-size: 17px; }
  .page { padding: 16px 14px 88px; }
  .metric-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .pnl-metric-grid { grid-template-columns: 1fr; }
  .metric-card { min-height: 110px; padding: 13px; }
  .metric-card > strong { margin-top: 18px; font-size: 22px; }
  .risk-banner { align-items: flex-start; flex-direction: column; }
  .activity-row { grid-template-columns: 90px 70px minmax(0, 1fr); gap: 8px; }
  .ai-decision dl { grid-template-columns: 1fr 1fr 1fr; }
  .mode-switch-actions { align-items: stretch; flex-direction: column; }
  .mode-switch-actions .segmented { width: 100%; }
  .mode-switch-actions .segmented span { min-width: 0; }
}