:root {
  --bg-primary: #0b0e11;
  --bg-secondary: #181c23;
  --bg-tertiary: #20242c;
  --bg-hover: #262b35;
  --border: #2a2e36;
  --text-primary: #eaecef;
  --text-muted: #848e9c;
  --text-faint: #5e6673;
  --green: #02c076;
  --green-bg: rgba(2, 192, 118, 0.12);
  --red: #f6465d;
  --red-bg: rgba(246, 70, 93, 0.12);
  --yellow: #f0b90b;
  --blue: #3a82f7;
  --radius: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  height: 100%;
}

.hidden { display: none !important; }
.muted { color: var(--text-muted); }
.small { font-size: 11px; }
.error { color: var(--red); font-size: 12px; min-height: 14px; margin-top: 8px; }
.green { color: var(--green); }
.red { color: var(--red); }
.yellow { color: var(--yellow); }
.mono { font-family: "SF Mono", Menlo, Consolas, monospace; }

/* Login */
.login-view {
  display: flex; align-items: center; justify-content: center;
  height: 100vh; padding: 20px;
}
.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 320px;
  display: flex; flex-direction: column; gap: 12px;
}
.login-card h1 {
  margin: 0; font-size: 24px; letter-spacing: -0.02em;
}
.login-card input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 12px;
  border-radius: var(--radius);
  font-size: 14px;
  outline: none;
}
.login-card input:focus { border-color: var(--blue); }
.login-card button {
  background: var(--yellow);
  color: #000;
  border: none;
  padding: 10px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
}
.login-card button:hover { filter: brightness(1.1); }

/* Topbar */
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 10px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 15px; letter-spacing: -0.02em;
}
.logo { color: var(--yellow); }
.chips { display: flex; gap: 8px; flex: 1; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 16px;
  font-size: 11px;
}
.chip-dot { width: 6px; height: 6px; border-radius: 50%; }
.dot-green { background: var(--green); }
.dot-red { background: var(--red); }
.dot-yellow { background: var(--yellow); }
.user-menu {
  display: flex; align-items: center; gap: 8px;
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 12px;
}
.btn-ghost:hover { background: var(--bg-hover); }
.btn-ghost.small { padding: 2px 8px; font-size: 11px; }

/* Grid */
.grid {
  display: grid;
  grid-template-columns: 280px 1fr 360px;
  gap: 12px;
  padding: 12px;
  height: calc(100vh - 52px);
  overflow: hidden;
}
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.card-head h2 { margin: 0; font-size: 13px; font-weight: 600; }
.card-sub {
  padding: 8px 14px;
  font-size: 11px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

/* Portfolio */
.summary {
  padding: 14px;
  display: grid; gap: 4px;
}
.summary-row { display: flex; justify-content: space-between; font-size: 12px; }
.summary-row .label { color: var(--text-muted); }
.summary-row .value { font-variant-numeric: tabular-nums; }
.summary-pnl { font-size: 16px; font-weight: 600; margin-top: 6px; }
.positions { flex: 1; overflow-y: auto; padding: 0 4px 8px; }
.position {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}
.position:hover { background: var(--bg-hover); }
.position .top {
  display: flex; justify-content: space-between; align-items: center;
}
.position .ticker { font-weight: 600; font-size: 12px; }
.position .pnl { font-size: 12px; font-variant-numeric: tabular-nums; }
.position .bottom { color: var(--text-muted); font-size: 10px; }

/* Chart */
.chart-container {
  flex: 1;
  background: var(--bg-secondary);
  min-height: 280px;
}
#chart-meta {
  padding: 8px 14px; border-top: 1px solid var(--border);
}

/* Scan */
.tabs { display: flex; gap: 4px; }
.tab {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 4px 12px;
  border-radius: 14px;
  font-size: 11px;
  cursor: pointer;
}
.tab.active { background: var(--bg-tertiary); color: var(--text-primary); }
.scan-list { flex: 1; overflow-y: auto; }
.scan-section {
  padding: 8px 12px 4px;
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--bg-primary);
}
.scan-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 8px;
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  font-size: 12px;
  align-items: center;
}
.scan-row:hover { background: var(--bg-hover); }
.scan-row .sym { font-weight: 600; }
.scan-row .price { font-variant-numeric: tabular-nums; text-align: right; }
.scan-row .meta { color: var(--text-muted); font-size: 10px; grid-column: 1 / -1; }
.tag {
  display: inline-block; padding: 1px 6px;
  border-radius: 8px; font-size: 10px;
  margin-right: 4px;
}
.tag-buy { background: var(--green-bg); color: var(--green); }
.tag-sell { background: var(--red-bg); color: var(--red); }
.tag-hold { background: var(--bg-tertiary); color: var(--text-muted); }
.tag-yellow { background: rgba(240, 185, 11, 0.15); color: var(--yellow); }

/* Trade buttons */
.trade-actions { display: flex; gap: 6px; }
.trade-actions.wide { width: 100%; justify-content: flex-end; margin-top: 12px; }
.btn-buy, .btn-sell {
  border: none;
  padding: 6px 14px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  font-size: 12px;
}
.btn-buy { background: var(--green); color: #000; }
.btn-sell { background: var(--red); color: #fff; }
.btn-buy:disabled, .btn-sell:disabled {
  opacity: 0.4; cursor: not-allowed;
}

/* Modal */
.modal {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  width: 340px;
  max-height: 80vh;
  overflow: auto;
}
.modal-card.wide { width: 480px; }
.modal-card h3 { margin: 0 0 8px; font-size: 16px; }
.modal-card input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 14px;
  outline: none;
  margin-top: 8px;
}
.modal-card input:focus { border-color: var(--blue); }
.modal-card .row {
  display: flex; justify-content: space-between;
  padding: 4px 0; font-size: 12px;
}

/* Users modal */
.user-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
  font-size: 13px;
}
.adduser {
  display: grid;
  grid-template-columns: 1fr 1fr auto auto;
  gap: 8px; margin-top: 16px;
}
.adduser input { margin: 0; }
.adduser .check {
  display: flex; align-items: center; gap: 4px;
  color: var(--text-muted); font-size: 12px;
}
.adduser button {
  background: var(--blue); color: #fff;
  border: none; border-radius: var(--radius);
  padding: 6px 12px; cursor: pointer; font-size: 12px;
}

/* Toast */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 12px;
  max-width: 340px;
  z-index: 200;
  white-space: pre-line;
}
.toast.err { border-left-color: var(--red); }

/* Mobile */
@media (max-width: 1000px) {
  .grid {
    grid-template-columns: 1fr;
    height: auto;
    overflow: visible;
  }
  .card { max-height: 70vh; }
  .chart-container { min-height: 240px; }
  .topbar { padding: 8px 10px; gap: 8px; }
  .brand { font-size: 13px; }
}