:root {
  color-scheme: dark;
  --bg: #061018;
  --rail: rgba(6, 16, 28, 0.94);
  --panel: rgba(10, 24, 40, 0.88);
  --line: rgba(94, 214, 255, 0.22);
  --text: #e7f6ff;
  --muted: #8eabc0;
  --up: #3dce8e;
  --down: #ff5d73;
  --cyan: #5ed6ff;
  --blue: #8eb7ff;
  --amber: #5ed6ff;
  --danger-bg: rgba(255, 93, 115, 0.12);
  --ok-bg: rgba(61, 206, 142, 0.12);
  --glow: 0 0 24px rgba(94, 214, 255, 0.12);
  font-family: "Segoe UI", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(rgba(94, 214, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94, 214, 255, 0.05) 1px, transparent 1px),
    radial-gradient(circle at top, #10283a 0%, var(--bg) 46%);
  background-size: 48px 48px, 48px 48px, auto;
}
button, input, select { font: inherit; color: inherit; }
h1, h2, p { margin: 0; }
h1 { font-size: 1.6rem; font-weight: 650; letter-spacing: 0.04em; }
h2 { font-size: 0.95rem; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; }

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top)) 16px max(24px, env(safe-area-inset-bottom));
}
.login-card {
  width: min(420px, 100%);
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--glow);
}
.login-card h1 { font-size: 1.4rem; }
.login-card button, .toolbar button, .settings button {
  background: var(--cyan);
  color: #041018;
  border: 0;
  border-radius: 8px;
  min-height: 44px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}
.login-card button:disabled, .toolbar button:disabled { opacity: 0.6; cursor: wait; }

.app {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}
aside {
  background: var(--rail);
  border-right: 1px solid var(--line);
  padding: 28px 18px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.brand { font-weight: 700; letter-spacing: 0.08em; font-size: 1.15rem; text-transform: uppercase; }
.brand span {
  display: block;
  margin-top: 4px;
  color: var(--cyan);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
}
nav { display: flex; flex-direction: column; gap: 4px; }
nav button {
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--muted);
  cursor: pointer;
}
nav button[aria-current="page"] {
  background: rgba(94, 214, 255, 0.1);
  border-color: var(--line);
  color: var(--text);
  box-shadow: inset 2px 0 0 var(--cyan);
}
nav button:hover { color: var(--text); }
.aside-note { margin-top: auto; color: var(--muted); font-size: 0.82rem; line-height: 1.5; }
.busy { display: flex; align-items: center; gap: 8px; margin: 0 0 12px; color: var(--cyan); font-size: 0.85rem; }
.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(94, 214, 255, 0.25);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

main {
  min-width: 0;
  padding: 28px 32px 56px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
main > section {
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}
header { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; }
.header-copy { min-width: 0; }
.account-menu { position: relative; display: flex; align-items: flex-start; }
.menu-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 28px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(8, 20, 34, 0.9);
  color: var(--muted);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  line-height: 1;
  cursor: pointer;
}
.account-menu.is-open .menu-trigger { color: var(--cyan); border-color: var(--cyan); }
.header-actions {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 30;
  min-width: 132px;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(6, 16, 28, 0.98);
  box-shadow: var(--glow);
}
.account-menu.is-open .header-actions { display: flex; }
.header-actions .who,
.header-actions .badge { font-size: 0.72rem; }
.header-actions .badge { align-self: flex-start; padding: 3px 8px; }
.header-actions .ghost { min-height: 36px; padding: 6px 10px; font-size: 0.78rem; }
.who { color: var(--cyan); font-size: 0.82rem; letter-spacing: 0.06em; }
.context { color: var(--muted); font-size: 0.85rem; margin-bottom: 6px; font-variant-numeric: tabular-nums; }
.badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--cyan);
  font-size: 0.82rem;
}
.badge.live { color: var(--down); border-color: rgba(255, 93, 115, 0.45); background: var(--danger-bg); }
.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 44px;
  padding: 8px 12px;
  cursor: pointer;
}
.status { min-height: 1.2em; color: var(--muted); }
.status:empty { display: none; }
.status[data-kind="error"] { color: #ffb3ae; }
.status[data-kind="ok"] { color: var(--up); }
.muted { color: var(--muted); line-height: 1.5; }
.symbol-bar { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chips button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  min-height: 36px;
  padding: 6px 12px;
  cursor: pointer;
}
.chips button[aria-current="true"] { color: #041018; background: var(--cyan); border-color: var(--cyan); }
.symbol-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.symbol-grid .panel canvas { height: 180px; }
textarea {
  background: #07131f;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: inherit;
  font: inherit;
  min-height: 96px;
  padding: 9px 10px;
  width: 100%;
  resize: vertical;
}

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--glow);
}
.card p { color: var(--muted); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; }
.card strong {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 1.2rem;
  font-variant-numeric: tabular-nums;
}
.card.up strong { color: var(--up); }
.card.down strong { color: var(--down); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.panel-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; flex-wrap: wrap; }
.legend { color: var(--muted); font-size: 0.8rem; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.swatch { width: 10px; height: 10px; border-radius: 99px; display: inline-block; margin-right: 4px; }
.swatch.close { background: var(--text); }
.swatch.fast { background: var(--cyan); }
.swatch.slow { background: var(--blue); }
canvas { width: 100%; height: 320px; display: block; }
#candles { cursor: grab; touch-action: pan-y; }
#candles:active { cursor: grabbing; }

.toolbar { display: flex; gap: 16px; align-items: end; flex-wrap: wrap; }
label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 0.82rem; }
input, select {
  background: #07131f;
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 44px;
  padding: 9px 10px;
  min-width: 0;
  width: 100%;
}
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.check { flex-direction: row; align-items: center; color: var(--text); }
.check input { width: auto; min-height: 0; }

.settings { display: grid; gap: 20px; }
fieldset {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  padding: 18px 16px;
}
legend { padding: 0 6px; color: var(--cyan); letter-spacing: 0.08em; }
.span-all { grid-column: 1 / -1; }
.mode-row { display: grid; grid-template-columns: minmax(0, 1fr) 180px; gap: 10px; align-items: center; margin-top: 8px; }
.mode-row span { color: var(--text); }

.table-wrap { max-width: 100%; overflow: auto; -webkit-overflow-scrolling: touch; }
table {
  width: 100%;
  border-collapse: collapse;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
  font-size: 0.86rem;
}
th, td { text-align: right; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th:first-child, td:first-child, td.left { text-align: left; }
th { color: var(--muted); font-weight: 600; font-size: 0.72rem; letter-spacing: 0.06em; }
.up { color: var(--up); }
.down { color: var(--down); }

@media (max-width: 800px) {
  body { overflow-x: hidden; }
  .app { display: block; min-height: 100vh; }
  aside {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 20;
    flex-direction: row;
    gap: 0;
    padding: 6px 6px max(6px, env(safe-area-inset-bottom));
    border-right: 0;
    border-top: 1px solid var(--line);
    background: rgba(5, 12, 22, 0.96);
  }
  .brand, .aside-note { display: none; }
  nav { flex-direction: row; width: 100%; gap: 4px; }
  nav button {
    flex: 1 1 0;
    min-width: 0;
    min-height: 52px;
    padding: 6px 2px;
    text-align: center;
    font-size: 0.7rem;
    line-height: 1.2;
  }
  nav button[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--cyan); }
  main {
    padding: max(16px, env(safe-area-inset-top)) 16px calc(88px + env(safe-area-inset-bottom));
    gap: 20px;
  }
  main > section { gap: 18px; }
  header { gap: 8px; }
  .context { line-height: 1.45; }
  h1 { font-size: 1.45rem; }
  .toolbar { flex-direction: column; align-items: stretch; gap: 12px; }
  .toolbar button, .settings button { width: 100%; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .panel { padding: 16px; }
  fieldset { grid-template-columns: 1fr; padding: 16px; }
  canvas { height: 240px; }
  .login-card { padding: 22px 16px; }
}

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

@media (max-width: 380px) {
  .cards { grid-template-columns: 1fr; }
  nav button { font-size: 0.64rem; padding: 6px 0; }
}