// _arrange.scss — Arrange page (.ar-* prefix)

/*
 * MuseHub Page-Specific Styles
 *
 * Contains CSS that is unique to a single page and not reusable as a component.
 * Shared/duplicated patterns live in _components.scss and _music.scss.
 *
 * Sections (alphabetical by page):
 *   activity, arrange, blame, blob, collaborators_settings, commit, commit_detail,
 *   commits, explore, forks, global_search, groove_check, insights, issue_detail,
 *   issue_list, labels, listen, motifs,
 *   new_repo, piano_roll, proposal_detail, proposal_list, release_detail, releases,
 *   repo_home, score, search, session_detail, sessions, settings, stash,
 *   timeline, tree, trending, user_profile
 */

/* =========================================================================
   Arrange page  (.ar-* prefix)
   ========================================================================= */

/* ── Commit header ─────────────────────────────────────────────────────── */
.ar-commit-header {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-4);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-3);
  align-items: center;
  @media (max-width: 640px) { grid-template-columns: 1fr; }
}
.ar-commit-left {
  min-width: 0;
}
.ar-commit-message {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: var(--space-2);
}
.ar-commit-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}
.ar-branch-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 9px;
  background: rgba(88,166,255,0.12);
  border: 1px solid rgba(88,166,255,0.3);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent);
}
.ar-sha {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 2px 6px;
  background: var(--bg-overlay);
  border-radius: 4px;
  color: var(--text-muted);
}
.ar-commit-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}
.ar-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 4px 10px;
  background: var(--bg-overlay);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-base);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  text-decoration: none;
  transition: border-color 0.12s, color 0.12s;
  &:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
  }
  &.ar-nav-btn--disabled {
    opacity: 0.4;
    pointer-events: none;
  }
}

/* ── Render status badge ───────────────────────────────────────────────── */
.ar-render-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
  &.ar-rs-complete  { background: rgba(63,185,80,0.12);  color: var(--color-success); border: 1px solid var(--color-success); }
  &.ar-rs-pending   { background: rgba(240,136,62,0.12); color: var(--color-warning); border: 1px solid var(--color-warning); }
  &.ar-rs-rendering { background: rgba(88,166,255,0.12); color: var(--color-accent);  border: 1px solid var(--color-accent); }
  &.ar-rs-failed    { background: rgba(248,81,73,0.12);  color: var(--color-danger);  border: 1px solid var(--color-danger); }
  &.ar-rs-none      { background: var(--bg-overlay); color: var(--text-muted); border: 1px solid var(--border-default); }
}

/* ── Stats ribbon ──────────────────────────────────────────────────────── */
.ar-stats-bar {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.ar-stat-pill {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  white-space: nowrap;
  strong { color: var(--text-primary); font-family: var(--font-mono); }
}

/* ── Section timeline bar ──────────────────────────────────────────────── */
.ar-timeline {
  display: flex;
  height: 40px;
  border-radius: var(--radius-base);
  overflow: hidden;
  border: 1px solid var(--border-default);
  margin-bottom: var(--space-4);
}
.ar-timeline-seg {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border-default);
  padding: 0 var(--space-2);
  cursor: default;
  transition: background 0.12s;
  overflow: hidden;
  &:last-child { border-right: none; }
  &:hover { background: var(--bg-overlay); }
  &[data-active="high"]   { background: rgba(88,166,255,0.15); }
  &[data-active="medium"] { background: rgba(88,166,255,0.08); }
  &[data-active="low"]    { background: rgba(88,166,255,0.03); }
}
.ar-timeline-label {
  font-size: 0.65rem;
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.ar-timeline-beats {
  font-size: 0.6rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 1px;
}

/* ── Matrix section ────────────────────────────────────────────────────── */
.ar-matrix-wrap {
  overflow-x: auto;
  margin-bottom: var(--space-5);
}
.ar-table {
  border-collapse: collapse;
  font-size: 12px;
  min-width: 100%;
  table-layout: auto;
}
.ar-table th {
  background: var(--bg-overlay);
  color: var(--text-muted);
  font-weight: var(--font-weight-semibold);
  padding: 8px 12px;
  border: 1px solid var(--border-default);
  text-align: center;
  white-space: nowrap;
  font-size: var(--font-size-xs);
}
.ar-table th.ar-th-inst {
  text-align: left;
  min-width: 120px;
}
.ar-table td {
  border: 1px solid var(--border-subtle);
  padding: 2px;
  text-align: center;
  vertical-align: middle;
}
/* Row highlight on hover (set by JS adding .ar-row-hover to <tr>) */
.ar-row-hover td { background-color: rgba(88, 166, 255, 0.04); }
/* Column highlight (set by JS adding .ar-col-hover to th/td with data-col) */
.ar-table .ar-col-hover { background-color: rgba(88, 166, 255, 0.06); }

/* ── Cells ─────────────────────────────────────────────────────────────── */
.ar-cell {
  width: 80px;
  height: 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
  position: relative;
  font-size: 10px;
  font-weight: var(--font-weight-semibold);
  gap: 2px;

  /* density levels — background fills from the accent colour */
  &[data-level="0"] { background: var(--bg-base); cursor: default; }
  &[data-level="1"] { background: rgba(88,166,255,0.15); color: rgba(255,255,255,0.7); }
  &[data-level="2"] { background: rgba(88,166,255,0.35); color: rgba(255,255,255,0.85); }
  &[data-level="3"] { background: rgba(88,166,255,0.60); color: #fff; }
  &[data-level="4"] { background: rgba(88,166,255,0.88); color: #fff; }

  &:not([data-level="0"]):hover {
    transform: scale(1.06);
    box-shadow: 0 0 0 2px var(--color-accent);
    z-index: 10;
  }
}
.ar-cell-notes {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  opacity: 0.9;
}
.ar-cell-bar {
  width: 70%;
  height: 3px;
  border-radius: 2px;
  background: rgba(255,255,255,0.5);
  position: relative;
  overflow: hidden;
}
.ar-cell-bar-fill {
  height: 100%;
  background: rgba(255,255,255,0.9);
  border-radius: 2px;
}
.ar-cell-silent-dash {
  color: var(--border-default);
  font-size: 14px;
}

/* ── Summary cells ─────────────────────────────────────────────────────── */
.ar-summary-row td,
.ar-summary-col td {
  background: var(--bg-surface);
  padding: 6px 10px;
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}
.ar-density-bar {
  height: 4px;
  border-radius: 2px;
  background: var(--color-accent);
  margin-top: 3px;
  opacity: 0.7;
}

/* ── Legend ────────────────────────────────────────────────────────────── */
.ar-legend {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}
.ar-legend-label { opacity: 0.7; }
.ar-legend-swatch {
  width: 16px;
  height: 16px;
  border-radius: 3px;
  display: inline-block;
  vertical-align: middle;
  &.ar-sw-0 { background: var(--bg-overlay); border: 1px solid var(--border-default); }
  &.ar-sw-1 { background: rgba(88,166,255,0.15); }
  &.ar-sw-2 { background: rgba(88,166,255,0.35); }
  &.ar-sw-3 { background: rgba(88,166,255,0.60); }
  &.ar-sw-4 { background: rgba(88,166,255,0.88); }
}

/* ── Bottom stats panels ───────────────────────────────────────────────── */
.ar-panels-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  @media (max-width: 700px) { grid-template-columns: 1fr; }
}
.ar-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.ar-panel-header {
  padding: var(--space-3) var(--space-4);
  background: var(--bg-overlay);
  border-bottom: 1px solid var(--border-default);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.ar-panel-body {
  padding: var(--space-3) var(--space-4);
}
.ar-panel-row {
  display: grid;
  grid-template-columns: 100px 1fr 48px;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  &:last-child { margin-bottom: 0; }
}
.ar-panel-label {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ar-panel-bar-track {
  background: var(--bg-overlay);
  border-radius: var(--radius-full);
  height: 7px;
  overflow: hidden;
}
.ar-panel-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, rgba(88,166,255,0.5), var(--color-accent));
}
.ar-panel-value {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-align: right;
}

/* ── Floating tooltip (positioned by JS) ──────────────────────────────── */
.ar-tooltip {
  position: fixed;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 8px;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  white-space: nowrap;
  z-index: 9999;
  pointer-events: none;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  line-height: 1.6;
  opacity: 0;
  transition: opacity 0.12s;
  min-width: 160px;
  &.ar-tooltip--visible { opacity: 1; }
}
.ar-tooltip-title {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: 4px;
}
.ar-tooltip-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}
.ar-tooltip-key { color: var(--text-muted); }
.ar-tooltip-val { color: var(--color-accent); font-weight: 600; }



// ── Responsive ────────────────────────────────────────────────────────────────

@media (max-width: 768px) {
  .ar-layout {
    grid-template-columns: 1fr;
  }

  .ar-sidebar {
    display: none;
  }

  .ar-track-header {
    min-width: unset;
    width: 100%;
  }

  .ar-controls {
    flex-direction: column;
    gap: var(--space-2);
  }

  .ar-toolbar {
    flex-wrap: wrap;
    gap: var(--space-1);
  }

  .ar-timeline {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 480px) {
  .ar-track-label {
    font-size: 11px;
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .ar-btn {
    padding: 2px 6px;
    font-size: 11px;
  }

  .ar-time-display {
    font-size: 12px;
  }
}