/* Variables */
:root {
  --bg:      #0d1117;
  --bg2:     #161b22;
  --bg3:     #21262d;
  --border:  #30363d;
  --text:    #e6edf3;
  --dim:     #8b949e;
  --green:   #26a69a;
  --red:     #ef5350;
  --blue:    #7c83fd;
  --accent:  #f78166;
  --yellow:  #e3b341;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 13px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.login-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 100;
}

.login-panel {
  width: min(360px, calc(100vw - 32px));
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-brand {
  font-size: 18px;
}

.login-panel .ctrl {
  justify-content: space-between;
}

.login-panel input {
  width: 190px;
}

/* Top bar */
.top-bar {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 20px;
  height: 52px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  z-index: 10;
}

.brand {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

.header-metrics {
  display: flex;
  gap: 28px;
  flex: 1;
}

.metric {
  display: flex;
  align-items: baseline;
  gap: 7px;
}
.metric .label { color: var(--dim); font-size: 10px; text-transform: uppercase; letter-spacing: 0.6px; }
.metric .value { font-size: 15px; font-weight: 600; }
.mono { font-variant-numeric: tabular-nums; }
.dim  { color: var(--dim); }
.small { font-size: 11px; }

/* SPX price flash on update */
#spx-price { transition: color 0.1s; }
#spx-price.flash { animation: flash 0.5s ease; }
@keyframes flash {
  0%   { color: var(--yellow); }
  100% { color: var(--text); }
}

/* Connection dot */
.conn-wrap { display: flex; align-items: center; gap: 7px; margin-left: auto; }
.conn-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--dim);
  flex-shrink: 0;
  transition: background 0.4s;
}
.conn-dot.connected    { background: var(--green); }
.conn-dot.disconnected { background: var(--red); }

/* Layout */
.layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 210px;
  flex-shrink: 0;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.panel {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.panel h3 {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--dim);
}

.item-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12px;
}

.order-row, .pos-row {
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 2px 0;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}
.order-row:last-child, .pos-row:last-child { border-bottom: none; }

.badge {
  font-size: 9px;
  padding: 1px 5px;
  border-radius: 3px;
  font-weight: 600;
  text-transform: uppercase;
  flex-shrink: 0;
}
.badge-live     { background: rgba(38,166,154,.2); color: var(--green); }
.badge-received { background: rgba(124,131,253,.2); color: var(--blue); }
.badge-long     { background: rgba(38,166,154,.15); color: var(--green); }
.badge-short    { background: rgba(239,83,80,.15);  color: var(--red); }

/* Main content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0;
  padding: 0 16px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.tab-btn {
  padding: 10px 18px;
  border: none;
  background: transparent;
  color: var(--dim);
  cursor: pointer;
  font-size: 13px;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--text); border-bottom-color: var(--accent); }

/* Tab panels */
.tab-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 12px 16px;
  gap: 10px;
}
.tab-panel.hidden { display: none; }
.hidden { display: none !important; }

/* Chart controls bar */
.chart-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

#tab-ric .chart-controls {
  flex-wrap: nowrap;
  overflow-x: auto;
  overflow-y: hidden;
  gap: 10px;
}

.ctrl {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--dim);
  font-size: 12px;
}

.ctrl-label { color: var(--dim); font-size: 12px; }

.ctrl select,
.ctrl input[type="number"],
.ctrl input[type="text"],
.ctrl input[type="password"] {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 3px 7px;
  font-size: 12px;
  outline: none;
}
.ctrl select:focus,
.ctrl input[type="number"]:focus,
.ctrl input[type="text"]:focus,
.ctrl input[type="password"]:focus { border-color: var(--accent); }

.ctrl input[type="number"] { width: 62px; }
.ctrl input[type="text"],
.ctrl input[type="password"] { width: 150px; }

.profile-form .ctrl:nth-child(5),
.profile-form .ctrl:nth-child(6) {
  grid-column: 1 / -1;
}

.profile-form .ctrl:nth-child(5) input,
.profile-form .ctrl:nth-child(6) input {
  width: min(520px, 100%);
  max-width: none;
}

.checkbox-ctrl { cursor: pointer; }
.checkbox-ctrl input { accent-color: var(--accent); cursor: pointer; }

/* Chart area */
.chart-box {
  flex: 1;
  min-height: 0;
  border-radius: 6px;
  overflow: hidden;
}

/* Market split view */
.market-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(360px, 1fr);
  gap: 12px;
  flex: 0 0 auto;
  min-height: 0;
}

#tab-market {
  overflow: hidden;
}

.market-trade-grid {
  margin-top: 2px;
  flex: 0 0 auto;
}

.ticket-panel-wrap {
  padding-top: 8px;
}

.ticket-tabs {
  display: inline-flex;
  gap: 4px;
}

.ticket-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.ticket-actions {
  margin-top: 0;
  flex-wrap: nowrap;
}

.ticket-tab-btn {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--dim);
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 12px;
}

.ticket-tab-btn.active {
  color: var(--text);
  border-color: var(--accent);
}

.market-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  min-height: 0;
}

.landscape-chart {
  flex: 0 1 auto;
  width: 100%;
  aspect-ratio: 16 / 8.4;
  min-height: 220px;
  max-height: 31vh;
}

/* Buttons */
.btn-sm {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 3px 10px;
  cursor: pointer;
  font-size: 12px;
  transition: background 0.15s;
}
.btn-sm:hover { background: var(--border); }

.btn-icon {
  background: none;
  border: none;
  color: var(--dim);
  cursor: pointer;
  font-size: 12px;
  padding: 0 4px;
  line-height: 1;
  transition: color 0.15s;
}
.btn-icon:hover { color: var(--text); }

.btn-primary {
  background: var(--accent);
  border: none;
  color: #fff;
  border-radius: 4px;
  padding: 5px 16px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: opacity 0.15s;
  white-space: nowrap;
}
.btn-primary:hover   { opacity: 0.85; }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-danger {
  background: var(--red);
  border: none;
  color: #fff;
  border-radius: 4px;
  padding: 5px 16px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: opacity 0.15s;
  white-space: nowrap;
}
.btn-danger:hover { opacity: 0.85; }
.btn-danger:disabled { opacity: 0.35; cursor: not-allowed; }

/* Trade order ticket */
.trade-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 12px;
  flex-shrink: 0;
}

.trade-panel {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(90px, 1fr));
  gap: 10px;
  align-items: center;
}

.open-ticket-grid {
  grid-template-columns: repeat(7, minmax(95px, 1fr));
  gap: 8px;
}

.close-ticket-grid {
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 8px;
}

.action-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.leg-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(110px, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.leg-chip {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 7px;
}
.leg-chip span {
  display: block;
  color: var(--dim);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 1px;
  line-height: 1.1;
}
.leg-chip strong {
  display: inline;
  font-size: 11px;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  margin-right: 6px;
}
.leg-chip .small {
  display: inline;
  font-size: 11px;
  line-height: 1.1;
}
.leg-chip.buy { border-color: rgba(38,166,154,.55); }
.leg-chip.sell { border-color: rgba(239,83,80,.55); }

.order-preview {
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
}

#tab-market .order-preview {
  flex: 0 0 auto;
  height: 180px;
}

.order-preview.placeholder {
  align-items: center;
  justify-content: center;
}

.preview-head {
  display: grid;
  grid-template-columns: repeat(6, minmax(90px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.preview-stat {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px;
}
.preview-stat span {
  display: block;
  color: var(--dim);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 4px;
}

.legs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.legs-table th,
.legs-table td {
  border-bottom: 1px solid var(--border);
  padding: 7px 6px;
  text-align: left;
}
.legs-table th {
  color: var(--dim);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.warnings {
  margin-top: 10px;
  color: var(--yellow);
}

.automation-grid,
.admin-grid {
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(420px, 1.1fr);
  gap: 12px;
  min-height: 0;
}

.automation-form,
.profile-form {
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  margin-top: 12px;
}

.automation-form .ctrl,
.profile-form .ctrl {
  justify-content: space-between;
}

.automation-form input,
.profile-form input {
  max-width: 170px;
}

.user-row,
.event-row {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px;
  cursor: pointer;
}

.user-row:hover { border-color: var(--accent); }
.event-row { cursor: default; }
.event-row.error { border-color: rgba(239,83,80,.55); color: var(--red); }
.event-row.info { border-color: rgba(38,166,154,.45); }

@media (max-width: 900px) {
  .market-grid {
    grid-template-columns: 1fr;
  }
  .landscape-chart {
    min-height: 260px;
    max-height: none;
  }
  .trade-grid,
  .automation-grid,
  .admin-grid,
  .preview-head {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: repeat(2, minmax(90px, 1fr));
  }
  .open-ticket-grid,
  .close-ticket-grid {
    grid-template-columns: repeat(2, minmax(90px, 1fr));
  }
  .ticket-topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .ticket-actions {
    flex-wrap: wrap;
  }
  .leg-list {
    grid-template-columns: repeat(2, minmax(110px, 1fr));
  }
}

/* RIC best result badge */
#ric-best { flex-shrink: 0; min-height: 28px; }

.best-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 14px;
  background: var(--bg3);
  border: 1px solid var(--blue);
  border-radius: 6px;
  font-size: 12px;
  color: var(--blue);
}
.best-badge strong { color: var(--text); font-variant-numeric: tabular-nums; }

/* Empty / loading states */
.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--dim);
  font-size: 13px;
  text-align: center;
  padding: 40px;
}
.placeholder.loading { color: var(--accent); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--dim); }