/* ============================================================
   AI Strategy Builder — Premium TradingView / Bloomberg Aesthetic
   ============================================================ */

/* ── Hero ── */
.sb-hero {
  margin-bottom: 28px;
}

.sb-hero-title {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  background: linear-gradient(135deg, #FFFFFF 0%, #34D399 45%, #3B82F6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0 0 8px 0;
}

@media (min-width: 768px) {
  .sb-hero-title { font-size: 48px; }
}

.sb-hero-sub {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 700px;
  margin: 0;
}

/* ── Natural Language Input ── */
.sb-nl-box {
  position: relative;
  margin-bottom: 18px;
}

.sb-nl-textarea {
  width: 100%;
  min-height: 100px;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg, 16px);
  padding: 16px 18px;
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--text-primary);
  resize: vertical;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  box-sizing: border-box;
  line-height: 1.6;
}

.sb-nl-textarea::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.sb-nl-textarea:focus {
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px var(--color-teal-bg, rgba(0, 201, 167, 0.12));
}

/* ── Example Chips ── */
.sb-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.sb-example-chip {
  padding: 6px 12px;
  border-radius: var(--radius-pill, 9999px);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.sb-example-chip:hover {
  border-color: var(--color-teal);
  color: var(--color-teal);
  background: var(--color-teal-bg, rgba(0, 201, 167, 0.1));
}

/* ── Config Row (Stock selector + date range) ── */
.sb-config-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

@media (min-width: 640px) {
  .sb-config-row {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.sb-select {
  background: var(--bg-elevated);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md, 10px);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
  font-weight: 600;
  outline: none;
  width: 100%;
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.sb-select:focus {
  border-color: var(--color-teal);
}

/* ── KPI Grid ── */
.sb-kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

@media (min-width: 640px) {
  .sb-kpi-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1024px) {
  .sb-kpi-grid { grid-template-columns: repeat(8, 1fr); }
}

/* ── Premium summary card ── */
.sb-summary-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.sb-summary-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-teal);
}

.sb-summary-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sb-summary-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

@media (min-width: 860px) {
  .sb-summary-grid { grid-template-columns: 1.4fr 0.9fr 0.8fr; }
}

.sb-summary-panel {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg, 14px);
  background: rgba(255,255,255,0.03);
}

.sb-summary-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.sb-summary-title {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.sb-summary-metric {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-teal);
  margin-bottom: 4px;
}

.sb-summary-meta {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* ── Animated pipeline card ── */
.sb-pipeline-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sb-pipeline-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sb-pipeline-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(52, 211, 153, 0.14);
  color: var(--color-teal);
}

.sb-pipeline-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.sb-pipeline-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
}

.sb-pipeline-steps {
  display: grid;
  gap: 8px;
}

.sb-pipeline-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
  border: 1px solid transparent;
}

.sb-pipeline-step.active {
  color: var(--text-primary);
  border-color: rgba(52, 211, 153, 0.18);
  background: rgba(52, 211, 153, 0.08);
}

.sb-pipeline-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* ── Responsive chart legend ── */
.sb-chart-legend {
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .sb-chart-legend {
    flex-direction: column;
    gap: 6px;
  }
}

/* ── Trade History Table ── */
.sb-trade-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
}

.sb-trade-table th {
  padding: 9px 12px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.sb-trade-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-subtle, rgba(255,255,255,0.04));
  color: var(--text-primary);
  vertical-align: middle;
}

.sb-trade-table tr:last-child td {
  border-bottom: none;
}

.sb-trade-table tr:hover td {
  background: var(--bg-elevated);
}

/* ── Tab Navigation ── */
.sb-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  overflow-x: auto;
  padding-bottom: 0;
}

.sb-tab-btn {
  padding: 9px 18px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.sb-tab-btn:hover {
  color: var(--text-primary);
}

.sb-tab-btn.active {
  color: var(--color-teal);
  border-bottom-color: var(--color-teal);
}

/* ── Export Button area ── */
.sb-actions-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

/* ── Annual returns bar ── */
.sb-annual-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-subtle, rgba(255,255,255,0.04));
}

.sb-annual-bar:last-child {
  border-bottom: none;
}

.sb-bar-track {
  flex: 1;
  height: 8px;
  background: var(--bg-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.sb-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.sb-timeline-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}