/**
 * Basket Composer Styles
 * Built for dark surfaces, crisp typography, and direct manipulation.
 * Exclusively uses design tokens from tokens.css (no inline colors).
 */

.composer {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  color: var(--color-text);
  background: var(--color-bg);
  box-sizing: border-box;
  user-select: none;
}

.composer__announcer {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Two-column layout on desktop, stacked on mobile */
.composer__layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-4);
  align-items: start;
}

@media (max-width: 768px) {
  .composer__layout {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

/* --- Tray: Grid of asset tiles --- */
.composer__tray {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  box-sizing: border-box;
  max-height: 520px;
  overflow: hidden;
}

.composer__tray-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-divider);
}

.composer__tray-title {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
}

.composer__tray-count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.composer__tray-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1-5);
  overflow-y: auto;
  padding-right: var(--space-1);
}

@media (max-width: 768px) {
  .composer__tray-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    max-height: 180px;
  }
}

.composer__tile {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2-5);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-sans);
  text-align: left;
  cursor: pointer;
  touch-action: pan-y;
  transition: background 120ms ease, border-color 120ms ease, opacity 120ms ease;
  outline: none;
}

.composer__tile:hover:not(.is-in-basket) {
  background: var(--color-surface-hover);
  border-color: var(--color-border);
}

.composer__tile:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.composer__tile.is-in-basket {
  opacity: 0.45;
  cursor: default;
  border-color: transparent;
}

.composer__tile-media {
  position: relative;
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 999px;
  background: var(--color-surface-high);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.composer__tile-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.composer__tile-check {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-surface-glass);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
}

.composer__tile-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.composer__tile-symbol {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  line-height: var(--leading-tight);
}

.composer__tile-name {
  font-size: var(--text-2xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: var(--leading-tight);
}

.composer__tile-metrics {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  line-height: var(--leading-tight);
}

.composer__tile-mark {
  color: var(--color-text-secondary);
}

.composer__tile-change.is-positive {
  color: var(--color-success);
}

.composer__tile-change.is-negative {
  color: var(--color-error);
}

/* --- Stage: Bowl & Balance Beam --- */
.composer__stage {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-width: 0;
}

.composer__bowl-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  box-shadow: 0 4px 20px rgb(0 0 0 / 0.35);
}

.composer__bowl {
  position: relative;
  width: 100%;
  height: 360px;
  min-height: 240px;
  outline: none;
}

@media (max-width: 48rem) {
  .composer__bowl {
    height: 320px;
    min-height: 320px;
  }
}

.composer__bowl-vessel {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.composer__vessel-bg {
  fill: var(--color-surface);
  stroke: var(--color-border-subtle);
  stroke-width: 1;
}

.composer__vessel-half--long {
  fill: var(--color-success-soft);
  opacity: 0.7;
}

.composer__vessel-half--short {
  fill: var(--color-error-soft);
  opacity: 0.7;
}

.composer__midline {
  stroke: var(--color-border);
  stroke-dasharray: 4 4;
  stroke-width: 1;
}

.composer__zone-label {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.composer__zone-label--long {
  fill: var(--color-success);
}

.composer__zone-label--short {
  fill: var(--color-error);
}

/* Drop zones for highlighting */
.composer__drop-zone {
  position: absolute;
  left: 0;
  width: 100%;
  pointer-events: none;
  transition: background 150ms ease, border-color 150ms ease;
  box-sizing: border-box;
}

.composer__drop-zone--long {
  top: 0;
  height: 50%;
}

.composer__drop-zone--short {
  top: 50%;
  height: 50%;
}

.composer__drop-zone--all {
  top: 0;
  height: 100%;
}

.composer__drop-zone.is-drop-active {
  background: var(--color-accent-softer);
  border: 2px dashed var(--color-accent);
}

/* Bubbles Layer */
.composer__bubbles-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: auto;
}

/* --- Bubble Element --- */
.composer__bubble {
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 999px;
  background: var(--color-surface-elevated);
  border: 1.5px solid var(--color-border);
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.4);
  cursor: grab;
  touch-action: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1), width 200ms ease, height 200ms ease;
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  .composer__bubble {
    transition: none !important;
  }
}

.composer__bubble:hover {
  z-index: 10;
  border-color: var(--color-border-strong);
  box-shadow: 0 4px 14px rgb(0 0 0 / 0.6);
}

.composer__bubble:focus-visible {
  z-index: 12;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.composer__bubble.is-long {
  border-color: var(--color-success-border);
}

.composer__bubble.is-short {
  border-color: var(--color-error-border);
}

.composer__bubble-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  pointer-events: none;
  gap: 2px;
}

.composer__bubble-media {
  position: relative;
  width: clamp(18px, calc(var(--bubble-r, 30px) * 0.72), 64px);
  height: clamp(18px, calc(var(--bubble-r, 30px) * 0.72), 64px);
  border-radius: 999px;
  background: var(--color-surface-high);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.composer__bubble-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.composer__bubble-symbol {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: var(--weight-bold);
  color: var(--color-text);
  line-height: var(--leading-none);
}

.composer__bubble-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: var(--weight-bold);
  line-height: var(--leading-none);
}

.composer__bubble.is-long .composer__bubble-badge {
  color: var(--color-success);
}

.composer__bubble.is-short .composer__bubble-badge {
  color: var(--color-error);
}

/* Rim handle for resizing */
.composer__rim-handle {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border-strong);
  cursor: nwse-resize;
  opacity: 0;
  transition: opacity 120ms ease, transform 120ms ease;
  z-index: 14;
}

.composer__bubble:hover .composer__rim-handle,
.composer__bubble:focus .composer__rim-handle {
  opacity: 1;
}

.composer__rim-handle:hover {
  background: var(--color-accent);
  border-color: var(--color-accent-hover);
  transform: scale(1.2);
}

/* Popover */
.composer__popover {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-2-5);
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.6);
  z-index: 30;
  min-width: 140px;
  display: flex;
  flex-direction: column;
  gap: var(--space-1-5);
}

.composer__popover[hidden] {
  display: none !important;
}

.composer__popover-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.composer__popover-symbol {
  font-weight: var(--weight-bold);
  color: var(--color-text);
}

.composer__popover-weight {
  color: var(--color-text-secondary);
}

.composer__popover-slider {
  width: 100%;
  accent-color: var(--color-accent);
  cursor: pointer;
  margin: var(--space-0-5) 0;
}

.composer__popover-actions {
  display: flex;
  gap: var(--space-1);
}

.composer__popover-btn {
  flex: 1;
  padding: var(--space-1) var(--space-1-5);
  font-family: var(--font-sans);
  font-size: var(--text-2xs);
  font-weight: var(--weight-medium);
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: background 100ms ease;
}

.composer__popover-btn:hover {
  background: var(--color-surface-active);
  border-color: var(--color-border);
}

.composer__popover-btn--danger {
  color: var(--color-error);
}

.composer__popover-btn--danger:hover {
  background: var(--color-error-soft);
  border-color: var(--color-error-border);
}

/* --- Balance Beam / Weight Bar --- */
.composer__beam {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-1-5) var(--space-3);
  box-sizing: border-box;
}

.composer__beam-svg,
.composer__weightbar-svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Beam elements */
.composer__beam-fulcrum {
  fill: var(--color-surface-hover);
  stroke: var(--color-border);
  stroke-width: 1;
}

.composer__beam-pin {
  fill: var(--color-accent);
}

.composer__beam-bar {
  stroke: var(--color-border-strong);
  stroke-width: 3;
  stroke-linecap: round;
}

.composer__beam-cord {
  stroke: var(--color-border);
  stroke-width: 1.5;
}

.composer__beam-pan--long {
  fill: var(--color-success-soft);
  stroke: var(--color-success-border);
  stroke-width: 1.5;
}

.composer__beam-pan--short {
  fill: var(--color-error-soft);
  stroke: var(--color-error-border);
  stroke-width: 1.5;
}

.composer__beam-mass--long {
  fill: var(--color-success);
}

.composer__beam-mass--short {
  fill: var(--color-error);
}

.composer__beam-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  fill: var(--color-text);
}

.composer__beam-sublabel {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  font-weight: var(--weight-semibold);
}

.composer__beam-sublabel--long {
  fill: var(--color-success);
}

.composer__beam-sublabel--short {
  fill: var(--color-error);
}

/* Weight bar elements */
.composer__weightbar-rect {
  fill: var(--color-surface-high);
  stroke: var(--color-bg);
  stroke-width: 1.5;
  transition: fill 120ms ease;
}

.composer__weightbar-rect:hover {
  fill: var(--color-accent-soft);
}

.composer__weightbar-seg-text {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: var(--weight-semibold);
  fill: var(--color-text-secondary);
  pointer-events: none;
}

.composer__weightbar-label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  fill: var(--color-text-muted);
}

/* Drag Ghost */
.composer__drag-ghost {
  padding: var(--space-1) var(--space-2);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  box-shadow: 0 4px 16px rgb(0 0 0 / 0.5);
  transform: translate(-50%, -50%);
}

@media (max-width: 48rem) {
  .composer__layout {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .composer__tray {
    max-height: none;
  }

  .composer__tray-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2, 8px);
    max-height: 240px;
  }

  .composer__tile {
    min-block-size: 56px;
    block-size: 56px;
    height: 56px;
    padding: var(--space-1-5) var(--space-2);
  }

  .composer__tile-symbol {
    font-size: var(--text-sm);
  }

  .composer__tile-name {
    font-size: 11px;
  }

  .composer__tile-mark {
    font-size: 11px;
  }

  .composer__stage {
    width: 100%;
  }

  .composer__bowl {
    height: 320px !important;
    min-height: 320px !important;
    width: 100%;
  }

  .composer__popover-slider {
    min-height: 44px;
    padding-block: 10px;
  }

  .composer__popover-btn {
    min-height: 44px;
    min-width: 44px;
    font-size: var(--text-xs);
  }

  .composer__weightbar-seg-text {
    font-size: 11px;
  }
}