/* ── Variables ── */
:root {
  --bg: #0d1117;
  --bg2: #161b22;
  --bg3: #1c2128;
  --border: #30363d;
  --text: #c9d1d9;
  --muted: #8b949e;
  --blue: #58a6ff;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #d29922;
  --purple: #bc8cff;
  --orange: #f0883e;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.5;
  min-height: 100vh;
}

/* ── Login ── */
.login-container {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
}
.login-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 40px 32px;
  width: 100%;
  max-width: 380px;
}
.login-box h2 {
  text-align: center; font-size: 22px; letter-spacing: 4px;
  color: var(--blue); margin-bottom: 4px;
}
.subtitle { text-align: center; color: var(--muted); font-size: 12px; margin-bottom: 24px; }
.login-box label { display: block; font-size: 11px; color: var(--muted); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 1px; }
.login-box input {
  display: block; width: 100%; padding: 10px 12px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); font-size: 14px; margin-bottom: 14px;
  outline: none; transition: border-color 0.15s;
}
.login-box input:focus { border-color: var(--blue); }
.login-box button[type="submit"] {
  display: block; width: 100%; padding: 10px;
  background: var(--green); color: #000; border: none; border-radius: 6px;
  font-size: 14px; font-weight: 600; cursor: pointer; margin-top: 4px;
  transition: opacity 0.15s;
}
.login-box button[type="submit"]:hover { opacity: 0.85; }
.login-box .error { color: var(--red); font-size: 12px; text-align: center; margin-top: 10px; }
.login-box .footer { text-align: center; color: var(--muted); font-size: 10px; margin-top: 20px; }

/* ── Header ── */
header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 8px;
  position: sticky; top: 0; z-index: 10;
}
header h1 { font-size: 16px; letter-spacing: 2px; color: var(--blue); white-space: nowrap; }

/* ── Badges ── */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 10px; font-weight: 700; letter-spacing: 1px;
}
.badge.online { background: var(--green); color: #000; }
.badge.offline { background: var(--red); color: #fff; }
.badge.mode-badge { background: var(--yellow); color: #000; }
.badge.mainnet { background: var(--red); color: #fff; }
.mini { color: var(--muted); font-size: 10px; }

/* ── Buttons ── */
.btn {
  padding: 5px 12px; border: 1px solid var(--border); border-radius: 5px;
  background: var(--bg3); color: var(--text); font-size: 11px;
  font-weight: 600; cursor: pointer; transition: all 0.15s;
  white-space: nowrap;
}
.btn:hover { filter: brightness(1.2); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-sml { padding: 3px 8px; font-size: 10px; }
.btn-start { background: var(--green); color: #000; border-color: var(--green); }
.btn-stop { background: var(--red); color: #fff; border-color: var(--red); }
.btn-danger { background: var(--red); color: #fff; border-color: var(--red); font-weight: 700; }
.btn-outline { background: transparent; border-color: var(--border); }

/* ── Error bar ── */
.error-bar {
  background: var(--red); color: #fff; padding: 8px 20px;
  font-size: 12px; font-weight: 600; text-align: center;
}

/* ── Top cards ── */
.top-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px; padding: 16px 20px;
}
.card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; padding: 16px;
}
.card h3 { font-size: 10px; text-transform: uppercase; color: var(--muted); letter-spacing: 1px; margin-bottom: 6px; }
.card .val { font-size: 24px; font-weight: 700; }
.card .val.blue { color: var(--blue); }
.card .val.green { color: var(--green); }
.card .val.purple { color: var(--purple); }
.card .val.red { color: var(--red); }
.card .sub { font-size: 10px; color: var(--muted); margin-top: 4px; }

/* ── Main grid ── */
.main-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 14px; padding: 0 20px 20px;
}
@media (max-width: 900px) { .main-grid { grid-template-columns: 1fr; } }

/* ── Panels ── */
.panel {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; margin-bottom: 14px; overflow: hidden;
}
.panel-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; border-bottom: 1px solid var(--border);
  font-size: 11px; font-weight: 700; letter-spacing: 1px; color: var(--muted);
}
.panel-body { padding: 10px 14px; overflow-y: auto; }

/* ── Allocation ── */
.alloc-bar { display: flex; height: 10px; border-radius: 5px; overflow: hidden; margin-bottom: 8px; background: var(--bg); }
.alloc-seg { min-width: 2px; transition: width 0.3s; }

/* ── Connection ── */
.conn-ok { color: var(--green); font-weight: 700; }
.conn-bad { color: var(--red); font-weight: 700; }

/* ── Position rows ── */
.pos-row {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 4px 12px;
  padding: 5px 0; border-bottom: 1px solid var(--border);
  font-size: 11px;
}
.pos-row:last-child { border-bottom: none; }

/* ── Tabs ── */
.tab-row { display: flex; gap: 0; }
.tab {
  padding: 4px 12px; cursor: pointer; font-size: 10px; letter-spacing: 1px;
  color: var(--muted); border-bottom: 2px solid transparent;
  transition: all 0.15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--blue); border-bottom-color: var(--blue); }

/* ── Indicators ── */
.ind-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4px 8px;
}
.ind-item { display: flex; justify-content: space-between; font-size: 11px; }
.ind-label { color: var(--muted); }
.ind-val { color: var(--text); font-weight: 600; }

/* ── Signals ── */
.signal-row {
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
  padding: 4px 0; border-bottom: 1px solid var(--border);
  font-size: 11px;
}
.signal-row:last-child { border-bottom: none; }
.sig-badge {
  display: inline-block; padding: 1px 6px; border-radius: 3px;
  font-size: 9px; font-weight: 700; letter-spacing: 1px;
}
.sig-badge.sig-BUY, .sig-badge.sig-LONG { background: var(--green); color: #000; }
.sig-badge.sig-SELL, .sig-badge.sig-SHORT { background: var(--red); color: #fff; }
.sig-badge.sig-NEUTRAL, .sig-badge.sig-HOLD { background: var(--yellow); color: #000; }

/* ── Regime ── */
.regime-TRENDING_UP { color: var(--green); font-weight: 700; }
.regime-TRENDING_DOWN { color: var(--red); font-weight: 700; }
.regime-RANGING { color: var(--yellow); font-weight: 700; }
.regime-VOLATILE { color: var(--orange); font-weight: 700; }
.regime-STRONG_TREND { color: var(--green); font-weight: 700; }
.regime-OVERSOLD { color: var(--blue); font-weight: 700; }
.regime-OVERBOUGHT { color: var(--red); font-weight: 700; }
.regime-WEAK_TREND { color: var(--muted); font-weight: 700; }

/* ── Symbol buttons ── */
.sym-btn {
  padding: 2px 8px; font-size: 9px; border: 1px solid var(--border);
  border-radius: 4px; background: var(--bg3); color: var(--muted);
  cursor: pointer; transition: all 0.15s;
}
.sym-btn:hover { color: var(--text); border-color: var(--muted); }
.sym-btn.active { color: var(--blue); border-color: var(--blue); background: rgba(88,166,255,0.1); }

/* ── Log ── */
.log-area { max-height: 300px; }
.log-line {
  font-size: 10px; padding: 2px 0; border-bottom: 1px solid rgba(48,54,61,0.5);
  white-space: pre-wrap; word-break: break-all;
}
.log-line:last-child { border-bottom: none; }
.log-line.error { color: var(--red); }
.log-line.warning { color: var(--yellow); }
.log-line.info { color: var(--muted); }
.log-line.success { color: var(--green); }

/* ── Selects ── */
select {
  background: var(--bg3); color: var(--text);
  border: 1px solid var(--border); padding: 3px 6px;
  font-size: 10px; border-radius: 4px; outline: none;
}
select:focus { border-color: var(--blue); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ── Tab Navigation ── */
.tab-nav {
  display: flex; gap: 0;
  padding: 0 20px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.tab-nav-item {
  padding: 10px 20px; cursor: pointer;
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
}
.tab-nav-item:hover { color: var(--text); }
.tab-nav-item.active { color: var(--blue); border-bottom-color: var(--blue); }

/* ── Analytics View ── */
.analytics-view { padding: 16px 20px 40px; }
.analytics-controls {
  display: flex; gap: 8px; align-items: center;
  margin-bottom: 16px; flex-wrap: wrap;
}

.chart-panel {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; margin-bottom: 14px; overflow: hidden;
}
.chart-panel-header {
  padding: 8px 14px; border-bottom: 1px solid var(--border);
  font-size: 10px; color: var(--muted); letter-spacing: 1px;
  font-weight: 600; text-transform: uppercase;
}
.chart-container {
  width: 100%; height: 440px; position: relative;
}
.chart-container-sm {
  height: 260px;
}
.chart-row-2col {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
}
@media (max-width: 900px) {
  .chart-row-2col { grid-template-columns: 1fr; }
  .chart-container { height: 320px; }
}

/* ── Animations ── */
@keyframes blink { 50% { opacity: 0.4; } }