:root {
  --bg: #0a0e17;
  --bg2: #0f1626;
  --panel: rgba(18, 26, 44, 0.72);
  --border: rgba(80, 120, 200, 0.18);
  --text: #c8d4e8;
  --dim: rgba(160, 180, 210, 0.55);
  --green: #2ee6a8;
  --amber: #ffb454;
  --red: #ff5c6c;
  --cyan: #5ad0ff;
  --mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

[hidden] { display: none !important; }

body {
  background: radial-gradient(1200px 600px at 70% -10%, #12223f 0%, var(--bg) 55%);
  color: var(--text);
  font-family: -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

#particles { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

.view { position: relative; z-index: 1; }

.mono { font-family: var(--mono); }
.dim { color: var(--dim); font-size: 12px; }
.ok { color: var(--green); }
.msg { font-size: 12px; margin-top: 8px; color: var(--amber); }

/* 登录 */
#login-view { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-card {
  width: 360px; padding: 36px; border-radius: 16px;
  background: var(--panel); border: 1px solid var(--border);
  backdrop-filter: blur(14px); box-shadow: 0 0 60px rgba(40,120,255,.15);
}
.brand { font-size: 26px; font-weight: 800; letter-spacing: 2px; color: #fff; }
.brand-sub { display: block; font-size: 12px; color: var(--dim); font-weight: 400; margin-top: 4px; }
.login-card input { width: 100%; margin-top: 16px; }
button { cursor: pointer; }

input {
  background: rgba(10,16,30,.6); border: 1px solid var(--border);
  color: var(--text); padding: 11px 14px; border-radius: 8px; font-size: 14px;
  outline: none;
}
input:focus { border-color: var(--cyan); }

.btn-primary {
  width: 100%; margin-top: 18px; padding: 12px; border: 0; border-radius: 8px;
  background: linear-gradient(90deg, #1f7cff, #5ad0ff); color: #04121f;
  font-weight: 700; font-size: 15px; transition: .2s;
}
.btn-primary:hover { filter: brightness(1.1); }
.btn-ghost {
  padding: 8px 14px; border-radius: 8px; background: transparent;
  border: 1px solid var(--border); color: var(--dim); font-size: 13px;
}
.btn-ghost:hover { color: #fff; border-color: var(--cyan); }

/* 顶栏 */
.topbar {
  display: flex; align-items: center; gap: 18px; padding: 14px 22px;
  background: rgba(10,15,28,.85); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5; flex-wrap: wrap;
}
.brand-sm { font-size: 15px; letter-spacing: 1px; }
.brand-sm b { color: var(--cyan); }
.tabs { display: flex; gap: 6px; }
.tab {
  padding: 7px 16px; border-radius: 20px; border: 1px solid var(--border);
  color: var(--dim); font-size: 13px; cursor: pointer; transition: .2s;
}
.tab.active { color: #fff; border-color: var(--cyan); background: rgba(90,208,255,.1); }
.price-strip { display: flex; gap: 16px; }
.price-item { font-family: var(--mono); font-size: 13px; }
.price-item b { color: #fff; font-size: 15px; }
.up { color: var(--green); } .down { color: var(--red); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 16px; }

/* 布局 */
.layout { padding: 18px 22px; display: flex; flex-direction: column; gap: 16px; max-width: 1560px; margin: 0 auto; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.grid-main { display: grid; grid-template-columns: 1fr 1.4fr 1fr; gap: 16px; }
.panel-right { display: flex; flex-direction: column; gap: 16px; }

.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 16px; backdrop-filter: blur(10px); position: relative; overflow: hidden;
}
.card h3 { font-size: 13px; color: var(--dim); font-weight: 600; letter-spacing: 1px; margin-bottom: 12px; }

.big-number { font-family: var(--mono); font-size: 34px; font-weight: 700; color: #fff; }
.big-number.green { color: var(--green); } .big-number.red { color: var(--red); }
.sub { font-family: var(--mono); font-size: 14px; margin: 4px 0 12px; }
.kv { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; font-size: 12px; color: var(--dim); }
.kv b { color: var(--text); font-family: var(--mono); }

.orderbook { font-family: var(--mono); font-size: 12px; margin-top: 10px; }
.ob-row { display: flex; justify-content: space-between; padding: 2px 0; }
.ob-row .q { color: var(--dim); }
.ob-row.bid { color: var(--green); } .ob-row.ask { color: var(--red); }

.flow { display: flex; flex-direction: column; gap: 6px; }
.flow-node { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.flow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }
.flow-dot.done { background: var(--green); } .flow-dot.block { background: var(--red); }
.flow-node .lbl { color: var(--dim); width: 90px; }

/* Jev 中心 */
.jev-center { text-align: center; }
.center-title { text-align: center; }
.jev-core { position: relative; height: 260px; display: flex; align-items: center; justify-content: center; }
.jev-ring {
  position: absolute; width: 200px; height: 200px; border-radius: 50%;
  border: 1px solid rgba(90,208,255,.25);
  animation: spin 12s linear infinite;
}
.jev-ring::after {
  content: ''; position: absolute; inset: -12px; border-radius: 50%;
  border: 1px dashed rgba(46,230,168,.18); animation: spin 20s linear infinite reverse;
}
@keyframes spin { to { transform: rotate(360deg); } }
.jev-inner { position: relative; z-index: 2; }
.jev-state { font-size: 13px; color: var(--cyan); letter-spacing: 2px; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: .6; } 50% { opacity: 1; } }
.jev-action { font-size: 42px; font-weight: 800; color: #fff; margin: 10px 0; text-shadow: 0 0 30px rgba(90,208,255,.5); }
.jev-action.buy { color: var(--green); } .jev-action.sell { color: var(--red); }
.jev-conf { font-family: var(--mono); color: var(--dim); font-size: 13px; }
.jev-labels { position: absolute; bottom: 0; width: 100%; display: flex; justify-content: space-between; color: var(--dim); font-size: 11px; }
.jev-btns { display: flex; gap: 10px; margin-top: 8px; }
.jev-btns .btn-primary { margin-top: 0; flex: 1; }

.signal-item { display: flex; justify-content: space-between; align-items: center; font-size: 13px; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.04); }
.signal-item .tag { color: var(--dim); }
.sig-buy { color: var(--green); } .sig-sell { color: var(--red); } .sig-hold { color: var(--amber); }
.alert-badge { color: #fff; background: var(--red); padding: 1px 7px; border-radius: 10px; font-size: 11px; }

.positions { font-family: var(--mono); font-size: 13px; }
.pos-row { display: flex; justify-content: space-between; padding: 5px 0; border-bottom: 1px solid rgba(255,255,255,.04); }
.heatbar { height: 10px; border-radius: 6px; background: rgba(255,255,255,.06); margin-top: 12px; overflow: hidden; }
#heat-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--green), var(--amber), var(--red)); transition: .5s; }

.mode-toggle { margin-top: 14px; }
#mode-label { font-size: 13px; color: var(--green); font-family: var(--mono); }

.params { margin-top: 4px; }
.params-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.params-row label { font-size: 12px; color: var(--dim); display: flex; align-items: center; gap: 6px; }
.params-row input { width: 110px; margin: 0; }
#admin-view .params-row input { width: 190px; }
#admin-view .params-row #k-key, #admin-view .params-row #k-secret { width: 280px; }
#admin-view .params-row #k-client { width: 90px; }
.params-row .btn-primary { width: auto; margin: 0; padding: 10px 18px; }

/* 管理后台 */
.admin-wrap { padding: 22px; display: flex; flex-direction: column; gap: 18px; max-width: 1200px; margin: 0 auto; }
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid rgba(255,255,255,.06); }
.table th { color: var(--dim); font-weight: 500; }
.table button { padding: 4px 10px; font-size: 12px; border-radius: 6px; border: 1px solid var(--border); background: transparent; color: var(--cyan); }

canvas#kline, canvas#timeline { width: 100%; display: block; }

.run-toggle {
  padding: 8px 16px; border-radius: 8px; border: 1px solid var(--border);
  background: transparent; color: var(--dim); font-size: 13px; cursor: pointer;
  transition: .2s;
}
.run-toggle.running { color: #04121f; background: var(--green); border-color: var(--green); font-weight: 700; }

@media (max-width: 1100px) {
  .grid-3, .grid-main { grid-template-columns: 1fr; }
}