:root {
  --bg: #0d1117;
  --bg2: #161b22;
  --bg3: #21262d;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --green: #3fb950;
  --red: #f85149;
  --yellow: #d29922;
  --purple: #bc8cff;
  --radius: 8px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  min-height: 100vh;
}

/* Layout */
.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
}

.sidebar .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  padding: 8px 12px 24px;
  letter-spacing: -0.5px;
}

.sidebar .logo span {
  color: var(--text-muted);
  font-weight: 400;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-muted);
  font-size: 14px;
  transition: all 0.15s;
  text-decoration: none;
  margin-bottom: 2px;
}

.nav-item:hover, .nav-item.active {
  background: var(--bg3);
  color: var(--text);
}

.nav-item .icon { font-size: 16px; width: 20px; text-align: center; }

.nav-section {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 16px 12px 6px;
}

.main {
  margin-left: 220px;
  flex: 1;
  padding: 24px;
  max-width: 1100px;
}

/* Page title */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-title {
  font-size: 20px;
  font-weight: 600;
}

/* Cards */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.stat-value {
  font-size: 22px;
  font-weight: 700;
}

.stat-value.positive { color: var(--green); }
.stat-value.negative { color: var(--red); }
.stat-value.accent { color: var(--accent); }

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }

label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  padding: 8px 12px;
  outline: none;
  font-family: var(--font);
  transition: border-color 0.15s;
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}

select option { background: var(--bg2); }

/* Buttons */
.btn {
  padding: 9px 18px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, transform 0.1s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn:hover { opacity: 0.85; }
.btn:active { transform: scale(0.97); }

.btn-primary { background: var(--accent); color: #0d1117; }
.btn-success { background: var(--green); color: #0d1117; }
.btn-danger { background: var(--red); color: #fff; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* Analysis result */
.result-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 20px;
}

.value-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}

.value-badge.yes { background: rgba(63, 185, 80, 0.15); color: var(--green); border: 1px solid var(--green); }
.value-badge.no { background: rgba(248, 81, 73, 0.15); color: var(--red); border: 1px solid var(--red); }
.value-badge.unknown { background: rgba(139, 148, 158, 0.15); color: var(--text-muted); border: 1px solid var(--border); }

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.result-item { }
.result-item .label { font-size: 11px; color: var(--text-muted); margin-bottom: 3px; }
.result-item .value { font-size: 16px; font-weight: 600; }

.poisson-row {
  display: flex;
  gap: 16px;
  margin: 10px 0;
}

.prob-bar-wrap {
  flex: 1;
  text-align: center;
}

.prob-bar-label { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }
.prob-bar { height: 6px; background: var(--bg3); border-radius: 3px; overflow: hidden; margin: 4px 0; }
.prob-bar-fill { height: 100%; border-radius: 3px; background: var(--accent); }
.prob-bar-fill.green { background: var(--green); }
.prob-bar-fill.red { background: var(--red); }
.prob-bar-fill.yellow { background: var(--yellow); }
.prob-value { font-size: 14px; font-weight: 700; }

/* Table */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

thead th {
  padding: 8px 12px;
  text-align: left;
  color: var(--text-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}

tbody tr:hover { background: var(--bg3); }

tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.badge {
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.badge-won { background: rgba(63,185,80,0.15); color: var(--green); }
.badge-lost { background: rgba(248,81,73,0.15); color: var(--red); }
.badge-pending { background: rgba(210,153,34,0.15); color: var(--yellow); }
.badge-void { background: rgba(139,148,158,0.15); color: var(--text-muted); }
.badge-value { background: rgba(88,166,255,0.15); color: var(--accent); }

/* Tabs */
.tabs { display: flex; gap: 4px; margin-bottom: 20px; border-bottom: 1px solid var(--border); }

.tab-btn {
  padding: 8px 16px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  margin-bottom: -1px;
  transition: all 0.15s;
}

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

/* Tab panes */
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* Chart */
.chart-wrap { position: relative; height: 250px; }

/* Combo legs */
.combo-leg {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 10px;
  position: relative;
}

.combo-leg .leg-number {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 600;
  text-transform: uppercase;
}

.remove-leg {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}
.remove-leg:hover { color: var(--red); }

/* Alerts / warnings */
.alert {
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  margin: 10px 0;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.alert-warning { background: rgba(210,153,34,0.12); border: 1px solid rgba(210,153,34,0.3); color: var(--yellow); }
.alert-error { background: rgba(248,81,73,0.12); border: 1px solid rgba(248,81,73,0.3); color: var(--red); }
.alert-success { background: rgba(63,185,80,0.12); border: 1px solid rgba(63,185,80,0.3); color: var(--green); }
.alert-info { background: rgba(88,166,255,0.12); border: 1px solid rgba(88,166,255,0.3); color: var(--accent); }

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-row {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
}

/* Settle modal overlay */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 100;
  align-items: center;
  justify-content: center;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  min-width: 320px;
  max-width: 500px;
  width: 90%;
}

.modal-title { font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.modal-actions { display: flex; gap: 10px; margin-top: 20px; justify-content: flex-end; }

/* Bankroll edit */
.bankroll-display {
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  margin: 8px 0;
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 16px; }
  .form-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}