/* Sequence tools — shared bottom dock for note-sequence transformations. */

.sequence-tools {
  --sequence-tools-height: clamp(320px, 42vh, 400px);
  position: fixed;
  z-index: var(--z-modal, 900);
  inset: auto 0 0;
  height: min(var(--sequence-tools-height), calc(100vh - 64px));
  display: grid;
  grid-template-rows: auto auto auto minmax(0, 1fr) auto;
  color: var(--text-primary, #fafafa);
  background: color-mix(in srgb, var(--surface-200, #111114) 96%, transparent);
  border-top: 1px solid color-mix(in srgb, var(--accent-primary, #8b5cf6) 55%, transparent);
  box-shadow: 0 -18px 50px rgb(0 0 0 / 46%);
  transform: translateY(18px);
  opacity: 0;
  transition: transform 160ms ease, opacity 160ms ease;
  backdrop-filter: blur(18px);
}

.sequence-tools--open {
  transform: translateY(0);
  opacity: 1;
}

.sequence-tools__resize {
  position: absolute;
  z-index: 2;
  inset: -6px 0 auto;
  height: 12px;
  cursor: ns-resize;
}

.sequence-tools__resize::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 50%;
  width: 46px;
  height: 3px;
  border-radius: 999px;
  background: var(--border-hover, rgb(255 255 255 / 20%));
  transform: translateX(-50%);
}

.sequence-tools__resize:focus-visible::after {
  background: var(--accent-primary, #8b5cf6);
  box-shadow: 0 0 0 3px rgb(139 92 246 / 24%);
}

.sequence-tools__header,
.sequence-tools__target-bar,
.sequence-tools__tabs,
.sequence-tools__footer {
  padding-inline: clamp(14px, 2.2vw, 32px);
}

.sequence-tools__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 13px 8px;
}

.sequence-tools__heading {
  min-width: 0;
}

.sequence-tools__title {
  margin: 0;
  font-size: 15px;
  font-weight: 750;
  letter-spacing: .01em;
}

.sequence-tools__context {
  margin: 2px 0 0;
  overflow: hidden;
  color: var(--text-secondary, #a1a1aa);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sequence-tools__close {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  padding: 0;
  color: var(--text-secondary, #a1a1aa);
  font: 500 24px/1 system-ui, sans-serif;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
}

.sequence-tools__close:hover {
  color: var(--text-primary, #fafafa);
  background: var(--surface-400, #1f1f23);
  border-color: var(--border-default, rgb(255 255 255 / 10%));
}

.sequence-tools__target-bar {
  display: grid;
  grid-template-columns: minmax(180px, 280px) minmax(0, 1fr);
  align-items: center;
  gap: 8px 16px;
  padding-block: 5px 9px;
}

.sequence-tools__target-label,
.sequence-tools__field {
  display: grid;
  gap: 5px;
  color: var(--text-secondary, #a1a1aa);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.sequence-tools__target-select,
.sequence-tools__select,
.sequence-tools__number {
  min-width: 0;
  height: 32px;
  padding: 0 30px 0 10px;
  color: var(--text-primary, #fafafa);
  font: 600 12px/1 system-ui, sans-serif;
  text-transform: none;
  letter-spacing: 0;
  background: var(--surface-400, #1f1f23);
  border: 1px solid var(--border-default, rgb(255 255 255 / 10%));
  border-radius: 7px;
}

.sequence-tools__number {
  width: 100%;
  padding-right: 8px;
}

.sequence-tools__target-summary,
.sequence-tools__target-consequence {
  min-width: 0;
  margin: 0;
  color: var(--text-secondary, #a1a1aa);
  font-size: 11px;
  line-height: 1.35;
}

.sequence-tools__target-consequence {
  grid-column: 2;
  color: var(--accent-warning, #f59e0b);
}

.sequence-tools__tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding-block: 0 8px;
  scrollbar-width: none;
}

.sequence-tools__tabs::-webkit-scrollbar {
  display: none;
}

.sequence-tools__tab,
.sequence-tools__segment,
.sequence-tools__button {
  min-height: 32px;
  padding: 0 12px;
  color: var(--text-secondary, #a1a1aa);
  font: 650 11px/1 system-ui, sans-serif;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: pointer;
  transition: color 120ms ease, background 120ms ease, border-color 120ms ease;
}

.sequence-tools__tab {
  flex: 0 0 auto;
}

.sequence-tools__tab:hover,
.sequence-tools__segment:hover,
.sequence-tools__button--quiet:hover {
  color: var(--text-primary, #fafafa);
  background: var(--surface-400, #1f1f23);
}

.sequence-tools__tab[aria-selected='true'] {
  color: var(--text-primary, #fafafa);
  background: rgb(139 92 246 / 17%);
  border-color: rgb(139 92 246 / 50%);
}

.sequence-tools__workspace {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(270px, .8fr) minmax(360px, 1.2fr);
  gap: clamp(16px, 2.5vw, 36px);
  padding: 12px clamp(14px, 2.2vw, 32px);
  overflow: auto;
  background: var(--surface-300, #18181b);
  border-block: 1px solid var(--border-default, rgb(255 255 255 / 10%));
}

.sequence-tools__controls,
.sequence-tools__preview {
  min-width: 0;
}

.sequence-tools__description {
  margin: 0 0 10px;
  color: var(--text-secondary, #a1a1aa);
  font-size: 11px;
  line-height: 1.45;
}

.sequence-tools__fields,
.sequence-tools__advanced-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.sequence-tools__advanced {
  margin-top: 10px;
  color: var(--text-secondary, #a1a1aa);
  font-size: 11px;
}

.sequence-tools__advanced > summary {
  width: fit-content;
  margin-bottom: 9px;
  color: var(--text-secondary, #a1a1aa);
  font-weight: 650;
  cursor: pointer;
}

.sequence-tools__range {
  display: grid;
  grid-template-columns: minmax(80px, 1fr) auto;
  align-items: center;
  gap: 8px;
  height: 32px;
}

.sequence-tools__range input {
  width: 100%;
  accent-color: var(--accent-primary, #8b5cf6);
}

.sequence-tools__value {
  min-width: 46px;
  color: var(--text-primary, #fafafa);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  text-align: right;
  text-transform: none;
  letter-spacing: 0;
}

.sequence-tools__toggle {
  min-height: 32px;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 9px;
  color: var(--text-primary, #fafafa);
  font-size: 11px;
  font-weight: 550;
  text-transform: none;
  letter-spacing: 0;
  background: var(--surface-400, #1f1f23);
  border: 1px solid var(--border-default, rgb(255 255 255 / 10%));
  border-radius: 7px;
  cursor: pointer;
}

.sequence-tools__toggle:has(input:checked) {
  background: rgb(139 92 246 / 13%);
  border-color: rgb(139 92 246 / 45%);
}

.sequence-tools__toggle:has(input:disabled) {
  opacity: .45;
  cursor: not-allowed;
}

.sequence-tools__toggle-input {
  accent-color: var(--accent-primary, #8b5cf6);
}

.sequence-tools__check-group {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
  padding: 0;
  border: 0;
}

.sequence-tools__check-group legend {
  width: 100%;
  margin-bottom: 4px;
  color: var(--text-secondary, #a1a1aa);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.sequence-tools__preview {
  display: grid;
  grid-template-rows: auto minmax(74px, 1fr) auto;
  align-content: stretch;
  padding: 10px;
  background: color-mix(in srgb, var(--surface-100, #09090b) 70%, transparent);
  border: 1px solid var(--border-default, rgb(255 255 255 / 10%));
  border-radius: 10px;
}

.sequence-tools__preview-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
}

.sequence-tools__preview-label {
  margin-left: auto;
  color: var(--text-muted, #71717a);
  font-size: 10px;
}

.sequence-tools__segmented {
  display: inline-flex;
  padding: 2px;
  background: var(--surface-300, #18181b);
  border: 1px solid var(--border-default, rgb(255 255 255 / 10%));
  border-radius: 8px;
}

.sequence-tools__segment {
  min-height: 25px;
  padding-inline: 9px;
  border-radius: 5px;
}

.sequence-tools__segment[aria-pressed='true'] {
  color: var(--text-primary, #fafafa);
  background: var(--surface-500, #27272a);
  border-color: var(--border-hover, rgb(255 255 255 / 20%));
}

.sequence-tools__audition {
  min-height: 29px;
  padding: 0 11px;
  color: #fff;
  font: 700 11px/1 system-ui, sans-serif;
  white-space: nowrap;
  background: linear-gradient(135deg, #6d4aff, #b832c8);
  border: 1px solid rgb(196 158 255 / 45%);
  border-radius: 7px;
  box-shadow: 0 5px 16px rgb(109 74 255 / 20%);
  cursor: pointer;
}

.sequence-tools__audition:hover {
  background: linear-gradient(135deg, #7c5cff, #cf3edd);
}

.sequence-tools__audition[aria-pressed='true'] {
  color: #f5efff;
  background: rgb(139 92 246 / 18%);
  border-color: rgb(196 158 255 / 60%);
  box-shadow: inset 0 0 0 1px rgb(196 158 255 / 13%);
}

.sequence-tools__preview-graphic {
  display: grid;
  grid-template-columns: repeat(16, minmax(4px, 1fr));
  align-items: end;
  gap: 3px;
  min-height: 74px;
  padding: 9px;
  overflow: hidden;
  background-image: linear-gradient(to right, transparent calc(25% - 1px), rgb(255 255 255 / 6%) 25%, transparent calc(25% + 1px));
  border-radius: 7px;
}

.sequence-tools__preview-graphic--empty {
  display: grid;
  grid-template-columns: 1fr;
  place-items: center;
  min-height: 112px;
  background:
    linear-gradient(to right, rgb(255 255 255 / 4%) 1px, transparent 1px) 0 0 / 25% 100%,
    linear-gradient(to bottom, rgb(255 255 255 / 3%) 1px, transparent 1px) 0 0 / 100% 25%;
  border: 1px dashed var(--border-default, rgb(255 255 255 / 10%));
}

.sequence-tools__preview-empty {
  max-width: 300px;
  color: var(--text-muted, #71717a);
  font-size: 11px;
  line-height: 1.45;
  text-align: center;
}

.sequence-tools__preview-graphic--notes {
  position: relative;
  display: block;
  min-height: 132px;
  padding: 0;
  background: #0d0d12;
  border: 1px solid rgb(255 255 255 / 8%);
}

.sequence-tools__preview-graphic--notes::after {
  content: attr(data-range);
  position: absolute;
  right: 7px;
  bottom: 6px;
  padding: 3px 6px;
  color: var(--text-secondary, #a1a1aa);
  font-size: 9px;
  background: rgb(9 9 11 / 82%);
  border: 1px solid rgb(255 255 255 / 8%);
  border-radius: 4px;
  pointer-events: none;
}

.sequence-tools__note-roll { width: 100%; height: 132px; display: block; }
.sequence-tools__note-roll line { vector-effect: non-scaling-stroke; }
.sequence-tools__note-roll .is-row { stroke: rgb(255 255 255 / 3%); }
.sequence-tools__note-roll .is-beat { stroke: rgb(255 255 255 / 7%); }
.sequence-tools__note-roll .is-bar { stroke: rgb(255 255 255 / 16%); }
.sequence-tools__note { vector-effect: non-scaling-stroke; stroke-width: 1; }
.sequence-tools__note.is-original { fill: #6366f1; stroke: #818cf8; }
.sequence-tools__note.is-result { fill: #8b5cf6; stroke: #c4b5fd; }
.sequence-tools__note.is-result.is-different { fill: #ec4899; stroke: #f9a8d4; }
.sequence-tools__note.is-removed { fill: rgb(113 113 122 / 28%); stroke: #a1a1aa; stroke-dasharray: 3 2; }
.sequence-tools__note.is-added { fill: #10b981; stroke: #6ee7b7; }

.sequence-tools__preview-mark {
  min-height: 18px;
  max-height: 58px;
  height: 45%;
  background: #6366f1;
  border: 1px solid rgb(255 255 255 / 11%);
  border-radius: 3px 3px 1px 1px;
}

.sequence-tools__preview-mark:nth-child(3n) {
  height: 70%;
}

.sequence-tools__preview-mark[data-state='empty'] {
  height: 8px;
  background: var(--surface-500, #27272a);
}

.sequence-tools__preview-mark[data-state='accent'] {
  height: 28%;
  background: #4f46e5;
}

.sequence-tools__preview-mark[data-state='changed'] {
  background: var(--accent-secondary, #ec4899);
  outline: 1px solid rgb(236 72 153 / 48%);
}

.sequence-tools__preview-mark[data-state='added'] {
  background: var(--accent-success, #10b981);
}

.sequence-tools__preview-mark[data-state='removed'],
.sequence-tools__preview-mark[data-state='skipped'] {
  background: repeating-linear-gradient(135deg, #71717a 0 3px, transparent 3px 6px);
  border-color: #71717a;
}

.sequence-tools__preview-summary {
  margin: 8px 0 0;
  color: var(--text-secondary, #a1a1aa);
  font-size: 11px;
  line-height: 1.35;
}

.sequence-tools__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 9px;
}

.sequence-tools__status {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  color: var(--text-secondary, #a1a1aa);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sequence-tools__status[data-type='error'] {
  color: #fca5a5;
}

.sequence-tools__actions {
  display: flex;
  gap: 7px;
  flex: 0 0 auto;
}

.sequence-tools__button {
  border-color: var(--border-default, rgb(255 255 255 / 10%));
}

.sequence-tools__button--secondary {
  color: var(--text-primary, #fafafa);
  background: var(--surface-500, #27272a);
}

.sequence-tools__button--primary {
  min-width: 132px;
  color: white;
  background: var(--accent-primary, #8b5cf6);
  border-color: transparent;
}

.sequence-tools__button--primary:hover {
  background: #7c3aed;
}

.sequence-tools__button--preview {
  min-width: 132px;
  color: #fff;
  background: linear-gradient(135deg, #7c3aed, #db2777);
  border-color: transparent;
  box-shadow: 0 5px 18px rgb(124 58 237 / 23%);
}

.sequence-tools__button--preview:hover {
  color: #fff;
  background: linear-gradient(135deg, #8b5cf6, #ec4899);
}

.sequence-tools__button[hidden] { display: none; }

.sequence-tools button:disabled,
.sequence-tools input:disabled,
.sequence-tools select:disabled {
  opacity: .45;
  cursor: not-allowed;
}

.sequence-tools :is(button, input, select, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent-primary, #8b5cf6);
  outline-offset: 2px;
}

.sequence-tools__target-browse { min-height:32px; padding:5px 9px; border:1px solid var(--border-default); border-radius:6px; color:var(--text-secondary); background:var(--surface-400); cursor:pointer; white-space:nowrap; }
.sequence-tools__target-actions { display:flex; gap:5px; }

.edit-target-picker { width:min(620px, calc(100vw - 28px)); max-height:min(680px, calc(100vh - 28px)); padding:0; color:var(--text-primary); background:var(--surface-300); border:1px solid var(--border-default); border-radius:12px; box-shadow:0 24px 80px color-mix(in srgb, #000 45%, transparent); }
.edit-target-picker::backdrop { background:color-mix(in srgb, #08070c 62%, transparent); backdrop-filter:blur(3px); }
.edit-target-picker form { display:grid; grid-template-rows:auto auto minmax(180px, 1fr) auto auto; max-height:min(680px, calc(100vh - 28px)); }
.edit-target-picker header, .edit-target-picker footer { display:flex; align-items:center; gap:10px; padding:13px 15px; }
.edit-target-picker header { border-bottom:1px solid var(--border-default); }
.edit-target-picker header h2 { margin:0; font-size:16px; }
.edit-target-picker header p { margin:3px 0 0; color:var(--text-secondary); font-size:11px; }
.edit-target-picker__close { margin-left:auto; border:0; color:var(--text-secondary); background:transparent; font-size:22px; cursor:pointer; }
.edit-target-picker__controls { display:grid; grid-template-columns:auto minmax(160px, 1fr); gap:10px; padding:11px 15px; }
.edit-target-picker__tabs { display:flex; padding:2px; border:1px solid var(--border-default); border-radius:7px; background:var(--surface-400); }
.edit-target-picker__tabs button, .edit-target-picker footer button { min-height:32px; padding:5px 11px; color:var(--text-secondary); background:transparent; border:0; border-radius:5px; cursor:pointer; }
.edit-target-picker__tabs button[aria-selected="true"] { color:var(--text-primary); background:color-mix(in srgb, var(--accent-primary) 18%, var(--surface-500)); }
.edit-target-picker__controls input { min-width:0; padding:7px 9px; color:var(--text-primary); background:var(--surface-500); border:1px solid var(--border-default); border-radius:7px; }
.edit-target-picker__list { overflow:auto; padding:0 15px 10px; }
.edit-target-picker__row { display:grid; grid-template-columns:18px minmax(0, 1fr); align-items:center; gap:10px; min-height:46px; padding:5px 8px; border-bottom:1px solid color-mix(in srgb, var(--border-default) 58%, transparent); cursor:pointer; }
.edit-target-picker__row:hover { background:color-mix(in srgb, var(--accent-primary) 7%, transparent); }
.edit-target-picker__row input { accent-color:var(--accent-primary); }
.edit-target-picker__row span { display:grid; gap:2px; }
.edit-target-picker__row strong { font-size:12px; }
.edit-target-picker__row small, .edit-target-picker__status, .edit-target-picker__empty { color:var(--text-secondary); font-size:10px; }
.edit-target-picker__status { min-height:18px; margin:0; padding:0 15px; }
.edit-target-picker footer { justify-content:flex-end; border-top:1px solid var(--border-default); }
.edit-target-picker footer button { border:1px solid var(--border-default); }
.edit-target-picker footer button.is-primary { color:#fff; background:var(--accent-primary); border-color:var(--accent-primary); }
.edit-target-picker footer button:disabled { opacity:.45; cursor:not-allowed; }
@media (max-width:560px) { .edit-target-picker__controls { grid-template-columns:1fr; } .edit-target-picker__tabs button { flex:1; } }

@media (max-width: 850px), (max-height: 620px) {
  .sequence-tools {
    --sequence-tools-height: min(520px, calc(100vh - 48px));
  }

  .sequence-tools__workspace {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .sequence-tools__preview {
    min-height: 140px;
  }
}

@media (max-width: 600px) {
  .sequence-tools {
    inset: 0;
    height: 100dvh;
    max-height: none;
    border-top: 0;
    transform: translateY(24px);
  }

  .sequence-tools--open {
    transform: translateY(0);
  }

  .sequence-tools__resize {
    display: none;
  }

  .sequence-tools__header,
  .sequence-tools__target-bar,
  .sequence-tools__tabs,
  .sequence-tools__footer {
    padding-inline: 12px;
  }

  .sequence-tools__target-bar {
    grid-template-columns: 1fr;
  }

  .sequence-tools__target-consequence {
    grid-column: 1;
  }

  .sequence-tools__tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    overflow: visible;
  }

  .sequence-tools__workspace {
    padding: 12px;
  }

  .sequence-tools__fields,
  .sequence-tools__advanced-fields {
    grid-template-columns: 1fr;
  }

  .sequence-tools__preview-head {
    flex-wrap: wrap;
  }

  .sequence-tools__preview-label {
    width: 100%;
    margin: 0;
  }

  .sequence-tools__footer {
    align-items: stretch;
    flex-direction: column;
  }

  .sequence-tools__status {
    white-space: normal;
  }

  .sequence-tools__actions {
    display: grid;
    grid-template-columns: .75fr 1fr 1.25fr;
  }

  .sequence-tools__button {
    min-width: 0;
    padding-inline: 7px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sequence-tools {
    transition: none;
  }
}