/* Long / Short Studio — Modeled, Not Traded */

.pair-ls {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5, 1.25rem);
  min-inline-size: 0;
  max-inline-size: 100%;
  color: var(--color-text, #ffffff);
  font-family: var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif);
}

.pair-ls :is(h2, h3, p, ul, ol, dl) {
  margin: 0;
}

/* ── Header Row ── */
.pair-ls__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-3, 0.75rem);
  padding-block-end: var(--space-4, 1rem);
  border-block-end: var(--border-subtle, 1px solid var(--color-border-subtle));
}

.pair-ls__hero-lead {
  display: flex;
  flex-direction: column;
  gap: var(--space-1, 0.25rem);
}

.pair-ls__eyebrow {
  font-size: var(--text-xs, 0.75rem);
  font-weight: 700;
  letter-spacing: var(--tracking-caps, 0.12em);
  text-transform: uppercase;
  color: var(--color-accent, #c9f24b);
}

.pair-ls__title {
  font-size: var(--text-2xl, 1.5rem);
  font-weight: 700;
  letter-spacing: var(--tracking-tight, -0.035em);
  line-height: var(--leading-tight, 1.1);
  color: var(--color-text, #ffffff);
}

.pair-ls__pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2, 0.5rem);
  align-items: center;
  margin-block-start: var(--space-1, 0.25rem);
}

.pair-ls__pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1-5, 0.375rem);
  padding: var(--space-1, 0.25rem) var(--space-2-5, 0.625rem);
  border-radius: var(--radius-pill, 999rem);
  font-size: var(--text-xs, 0.75rem);
  font-weight: 600;
  font-family: var(--font-mono, monospace);
  font-feature-settings: var(--font-feature-numeric, "tnum" 1, "zero" 1);
  background: var(--color-surface, #131313);
  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
  color: var(--color-text-secondary, #d4d4d4);
}

.pair-ls__pill::before {
  content: "";
  display: inline-block;
  inline-size: 6px;
  block-size: 6px;
  border-radius: 50%;
  background: currentColor;
}

.pair-ls__pill--design {
  border-color: var(--color-border-accent, rgba(201, 242, 75, 0.55));
  color: var(--color-accent, #c9f24b);
  background: var(--color-accent-softer, rgba(201, 242, 75, 0.07));
}

.pair-ls__pill--design::before {
  background: var(--color-accent, #c9f24b);
}

.pair-ls__pill--disabled {
  border-color: var(--color-border-subtle, rgba(255, 255, 255, 0.07));
  color: var(--color-text-muted, #a3a3a3);
}

.pair-ls__pill--disabled::before {
  background: var(--color-text-disabled, #525252);
}

.pair-ls__pill--source {
  border-color: var(--color-border, rgba(255, 255, 255, 0.12));
  color: var(--color-text-secondary, #d4d4d4);
}

.pair-ls__pill--source::before {
  background: var(--color-accent, #c9f24b);
}

/* ── Builder Panel (Form) ── */
.pair-ls__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4, 1rem);
  padding: var(--space-4, 1rem);
  background: var(--surface-card, var(--color-surface, #131313));
  border: 1px solid var(--color-border-subtle, rgba(255, 255, 255, 0.07));
  border-radius: var(--radius-card, 1rem);
}

.pair-ls__legs-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3, 0.75rem);
  min-inline-size: 0;
}

.pair-ls__leg-field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-1-5, 0.375rem);
  min-inline-size: 0;
}

.pair-ls__label {
  font-size: var(--text-xs, 0.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide, 0.045em);
  color: var(--color-text-muted, #a3a3a3);
}

.pair-ls__select {
  inline-size: 100%;
  padding: var(--space-2, 0.5rem) var(--space-3, 0.75rem);
  background: var(--color-control-bg, #171717);
  color: var(--color-control-text, #ffffff);
  border: 1px solid var(--color-control-border, rgba(255, 255, 255, 0.18));
  border-radius: var(--radius-control, 0.75rem);
  font-size: var(--text-sm, 0.8125rem);
  font-family: var(--font-mono, monospace);
  outline: none;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.pair-ls__select:hover {
  background: var(--color-control-bg-hover, #202020);
  border-color: var(--color-control-border-hover, rgba(255, 255, 255, 0.34));
}

.pair-ls__select:focus-visible {
  border-color: var(--color-control-border-focus, var(--color-accent, #c9f24b));
}

.pair-ls__swap-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 2.5rem;
  block-size: 2.5rem;
  flex-shrink: 0;
  background: var(--color-surface-elevated, #1c1c1c);
  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
  border-radius: var(--radius-control, 0.75rem);
  color: var(--color-accent, #c9f24b);
  font-size: var(--text-lg, 1.0625rem);
  font-family: var(--font-mono, monospace);
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.pair-ls__swap-btn:hover {
  background: var(--color-surface-hover, #232323);
  border-color: var(--color-accent, #c9f24b);
  transform: rotate(180deg);
}

.pair-ls__swap-btn:focus-visible {
  outline: 2px solid var(--color-accent, #c9f24b);
  outline-offset: 2px;
}

.pair-ls__validation {
  padding: var(--space-2, 0.5rem) var(--space-3, 0.75rem);
  background: var(--color-error-soft, rgba(255, 107, 92, 0.14));
  border: 1px solid var(--color-error-border, rgba(255, 107, 92, 0.46));
  border-radius: var(--radius-sm, 0.5rem);
  color: var(--color-error, #ff6b5c);
  font-size: var(--text-sm, 0.8125rem);
  font-weight: 500;
}

.pair-ls__sliders-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4, 1rem);
}

.pair-ls__slider-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2, 0.5rem);
}

.pair-ls__slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pair-ls__slider-value {
  font-family: var(--font-mono, monospace);
  font-size: var(--text-sm, 0.8125rem);
  font-weight: 600;
  color: var(--color-accent, #c9f24b);
}

.pair-ls__range-input {
  inline-size: 100%;
  accent-color: var(--color-accent, #c9f24b);
  cursor: pointer;
}

.pair-ls__range-row {
  display: flex;
  align-items: center;
  gap: var(--space-3, 0.75rem);
  flex-wrap: wrap;
}

.pair-ls__range-label {
  font-size: var(--text-xs, 0.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide, 0.045em);
  color: var(--color-text-muted, #a3a3a3);
}

.pair-ls__range-pills {
  display: flex;
  gap: var(--space-1, 0.25rem);
  flex-wrap: wrap;
}

.pair-ls__range-btn {
  padding: var(--space-1, 0.25rem) var(--space-3, 0.75rem);
  background: var(--color-control-bg, #171717);
  border: 1px solid var(--color-control-border, rgba(255, 255, 255, 0.18));
  border-radius: var(--radius-pill, 999rem);
  color: var(--color-text-secondary, #d4d4d4);
  font-size: var(--text-xs, 0.75rem);
  font-family: var(--font-mono, monospace);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pair-ls__range-btn:hover {
  background: var(--color-control-bg-hover, #202020);
  color: var(--color-text, #ffffff);
}

.pair-ls__range-btn.is-active,
.pair-ls__range-btn[aria-pressed="true"] {
  background: var(--color-accent, #c9f24b);
  border-color: var(--color-accent, #c9f24b);
  color: var(--color-on-accent, #0a0a0a);
}

.pair-ls__presets-row {
  display: flex;
  align-items: center;
  gap: var(--space-3, 0.75rem);
  flex-wrap: wrap;
  padding-block-start: var(--space-2, 0.5rem);
  border-block-start: 1px solid var(--color-border-subtle, rgba(255, 255, 255, 0.07));
}

.pair-ls__presets-label {
  font-size: var(--text-xs, 0.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide, 0.045em);
  color: var(--color-text-muted, #a3a3a3);
}

.pair-ls__presets-list {
  display: flex;
  gap: var(--space-2, 0.5rem);
  flex-wrap: wrap;
}

.pair-ls__preset-btn {
  padding: var(--space-1, 0.25rem) var(--space-2-5, 0.625rem);
  background: var(--color-surface-elevated, #1c1c1c);
  border: 1px solid var(--color-border-subtle, rgba(255, 255, 255, 0.07));
  border-radius: var(--radius-sm, 0.5rem);
  color: var(--color-text-secondary, #d4d4d4);
  font-size: var(--text-xs, 0.75rem);
  font-family: var(--font-mono, monospace);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pair-ls__preset-btn:hover {
  background: var(--color-surface-hover, #232323);
  border-color: var(--color-accent, #c9f24b);
  color: var(--color-text, #ffffff);
}

/* ── Stats Strip ── */
.pair-ls__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: var(--space-3, 0.75rem);
}

.pair-ls__stat-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-1, 0.25rem);
  padding: var(--space-3, 0.75rem);
  background: var(--surface-card, var(--color-surface, #131313));
  border: 1px solid var(--color-border-subtle, rgba(255, 255, 255, 0.07));
  border-radius: var(--radius-card, 1rem);
}

.pair-ls__stat-label {
  font-size: var(--text-2xs, 0.625rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide, 0.045em);
  color: var(--color-text-muted, #a3a3a3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pair-ls__stat-value {
  font-family: var(--font-mono, monospace);
  font-size: var(--text-lg, 1.0625rem);
  font-weight: 700;
  font-feature-settings: var(--font-feature-numeric, "tnum" 1, "zero" 1);
  color: var(--color-text, #ffffff);
}

.pair-ls__stat-value.is-positive {
  color: var(--color-success, #c9f24b);
}

.pair-ls__stat-value.is-negative {
  color: var(--color-error, #ff6b5c);
}

/* ── Chart Card ── */
.pair-ls__chart-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3, 0.75rem);
  padding: var(--space-4, 1rem);
  background: var(--surface-card, var(--color-surface, #131313));
  border: 1px solid var(--color-border-subtle, rgba(255, 255, 255, 0.07));
  border-radius: var(--radius-card, 1rem);
  min-inline-size: 0;
}

.pair-ls__chart-stage {
  position: relative;
  min-block-size: 320px;
  inline-size: 100%;
  min-inline-size: 0;
  border-radius: var(--radius-md, 0.75rem);
}

.pair-ls__chart-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  block-size: 320px;
  color: var(--color-text-muted, #a3a3a3);
  font-size: var(--text-sm, 0.8125rem);
  font-family: var(--font-mono, monospace);
}

/* Skeleton loader */
.pair-ls__skeleton {
  display: flex;
  flex-direction: column;
  gap: var(--space-4, 1rem);
  block-size: 320px;
  padding: var(--space-4, 1rem);
  background: var(--surface-well, #0a0a0a);
  border-radius: var(--radius-md, 0.75rem);
  animation: pairLsPulse 1.8s ease-in-out infinite;
}

.pair-ls__skeleton-bar {
  inline-size: 40%;
  block-size: 1.5rem;
  background: var(--color-surface-hover, #232323);
  border-radius: var(--radius-sm, 0.5rem);
}

.pair-ls__skeleton-chart {
  flex: 1;
  background: var(--color-surface, #131313);
  border-radius: var(--radius-sm, 0.5rem);
}

@keyframes pairLsPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 0.3; }
}

/* Exhaustion overlay */
.pair-ls__exhaustion-overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 5;
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
}

.pair-ls__exhaustion-line {
  inline-size: 2px;
  flex: 1;
  background: repeating-linear-gradient(
    to bottom,
    var(--color-error, #ff6b5c) 0,
    var(--color-error, #ff6b5c) 6px,
    transparent 6px,
    transparent 12px
  );
}

.pair-ls__exhaustion-label {
  padding: var(--space-1, 0.25rem) var(--space-2, 0.5rem);
  background: var(--color-bg, #000000);
  border: 1px solid var(--color-error-border, rgba(255, 107, 92, 0.46));
  border-radius: var(--radius-xs, 0.25rem);
  color: var(--color-error, #ff6b5c);
  font-size: var(--text-2xs, 0.625rem);
  font-family: var(--font-mono, monospace);
  white-space: nowrap;
  margin-block-start: var(--space-2, 0.5rem);
}

/* Error state */
.pair-ls__error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3, 0.75rem);
  block-size: 320px;
  padding: var(--space-4, 1rem);
  text-align: center;
  background: var(--color-error-soft, rgba(255, 107, 92, 0.14));
  border: 1px solid var(--color-error-border, rgba(255, 107, 92, 0.46));
  border-radius: var(--radius-md, 0.75rem);
}

.pair-ls__error-message {
  color: var(--color-error, #ff6b5c);
  font-size: var(--text-sm, 0.8125rem);
  font-weight: 500;
  max-inline-size: 480px;
}

.pair-ls__btn--retry {
  padding: var(--space-2, 0.5rem) var(--space-4, 1rem);
  background: var(--color-surface-elevated, #1c1c1c);
  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
  border-radius: var(--radius-control, 0.75rem);
  color: var(--color-text, #ffffff);
  font-size: var(--text-sm, 0.8125rem);
  font-family: var(--font-mono, monospace);
  cursor: pointer;
  transition: all 0.15s ease;
}

.pair-ls__btn--retry:hover {
  background: var(--color-accent, #c9f24b);
  border-color: var(--color-accent, #c9f24b);
  color: var(--color-on-accent, #0a0a0a);
}

.pair-ls__source {
  font-size: var(--text-xs, 0.75rem);
  font-family: var(--font-mono, monospace);
  color: var(--color-text-muted, #a3a3a3);
  font-feature-settings: var(--font-feature-numeric, "tnum" 1, "zero" 1);
}

/* ── Scenario Matrix Card ── */
.pair-ls__matrix-card {
  padding: var(--space-4, 1rem);
  background: var(--surface-card, var(--color-surface, #131313));
  border: 1px solid var(--color-border-subtle, rgba(255, 255, 255, 0.07));
  border-radius: var(--radius-card, 1rem);
  overflow-x: auto;
  max-inline-size: 100%;
}

.pair-ls__matrix-table {
  inline-size: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono, monospace);
  font-feature-settings: var(--font-feature-numeric, "tnum" 1, "zero" 1);
  font-size: var(--text-xs, 0.75rem);
}

.pair-ls__matrix-caption {
  caption-side: bottom;
  text-align: left;
  font-size: var(--text-xs, 0.75rem);
  color: var(--color-text-muted, #a3a3a3);
  font-family: var(--font-sans, sans-serif);
  margin-block-start: var(--space-3, 0.75rem);
}

.pair-ls__matrix-th {
  padding: var(--space-2, 0.5rem);
  font-weight: 600;
  text-align: center;
  color: var(--color-text-secondary, #d4d4d4);
  border: 1px solid var(--color-border-subtle, rgba(255, 255, 255, 0.07));
  background: var(--color-surface-elevated, #1c1c1c);
}

.pair-ls__matrix-corner {
  color: var(--color-text-muted, #a3a3a3);
  font-size: var(--text-2xs, 0.625rem);
  white-space: nowrap;
}

.pair-ls__matrix-td {
  padding: var(--space-2, 0.5rem);
  text-align: center;
  border: 1px solid var(--color-border-subtle, rgba(255, 255, 255, 0.07));
  color: var(--color-text, #ffffff);
  transition: background-color 0.15s ease;
}

.pair-ls__matrix-td.is-positive {
  color: var(--color-success, #c9f24b);
}

.pair-ls__matrix-td.is-negative {
  color: var(--color-error, #ff6b5c);
}

.pair-ls__matrix-td.is-neutral {
  color: var(--color-text-muted, #a3a3a3);
}

/* ── Recipe Card ── */
.pair-ls__recipe-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3, 0.75rem);
  padding: var(--space-4, 1rem);
  background: var(--surface-card, var(--color-surface, #131313));
  border: 1px solid var(--color-border-subtle, rgba(255, 255, 255, 0.07));
  border-radius: var(--radius-card, 1rem);
}

.pair-ls__recipe-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pair-ls__recipe-title {
  font-size: var(--text-xs, 0.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide, 0.045em);
  color: var(--color-text-muted, #a3a3a3);
}

.pair-ls__copy-btn {
  padding: var(--space-1-5, 0.375rem) var(--space-3, 0.75rem);
  background: var(--color-surface-elevated, #1c1c1c);
  border: 1px solid var(--color-border, rgba(255, 255, 255, 0.12));
  border-radius: var(--radius-control, 0.75rem);
  color: var(--color-accent, #c9f24b);
  font-size: var(--text-xs, 0.75rem);
  font-family: var(--font-mono, monospace);
  cursor: pointer;
  transition: all 0.15s ease;
}

.pair-ls__copy-btn:hover {
  background: var(--color-accent, #c9f24b);
  color: var(--color-on-accent, #0a0a0a);
}

.pair-ls__recipe-textarea {
  inline-size: 100%;
  padding: var(--space-3, 0.75rem);
  background: var(--surface-well, #0a0a0a);
  border: 1px solid var(--color-control-border, rgba(255, 255, 255, 0.18));
  border-radius: var(--radius-sm, 0.5rem);
  color: var(--color-control-text, #ffffff);
  font-family: var(--font-mono, monospace);
  font-size: var(--text-xs, 0.75rem);
  line-height: var(--leading-snug, 1.3);
  resize: vertical;
}

/* ── Responsive Rules ── */
@media (max-width: 48rem) {
  .pair-ls__pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2, 0.5rem);
  }

  .pair-ls__pill {
    max-inline-size: 100%;
    white-space: normal;
    word-break: break-word;
  }

  .pair-ls__sliders-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .pair-ls__range-input,
  .pair-ls__slider {
    min-block-size: 44px;
    min-height: 44px;
    height: 44px;
    padding-block: 12px;
  }

  .pair-ls__legs-row {
    flex-direction: column;
    align-items: stretch;
    inline-size: 100%;
    width: 100%;
  }

  .pair-ls__leg-field {
    inline-size: 100%;
    width: 100%;
  }

  .pair-ls__select {
    inline-size: 100%;
    width: 100%;
    min-block-size: 44px;
  }

  .pair-ls__swap-btn {
    align-self: center;
    min-inline-size: 44px;
    min-block-size: 44px;
  }

  .pair-ls__stats {
    grid-template-columns: 1fr;
    gap: var(--space-2, 0.5rem);
  }

  .pair-ls__matrix-card {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-inline-size: 100%;
  }
}

/* The composite is the hero; the legs are context. */
.pair-ls [data-performance-series="PAIR"] path {
  stroke: var(--color-accent) !important;
  stroke-width: 2.5px !important;
}

.pair-ls [data-performance-series]:not([data-performance-series="PAIR"]) path {
  stroke-width: 1px !important;
  opacity: 0.45 !important;
}