/* ══════════════════════════════════════════════════════════════
   WealthOS — Asset-class comparison widget
   "¿Dónde rindió más tu dinero?" — growth of MX$100 across classes.
   CSS variables only; theme-aware (dark + light).
════════════════════════════════════════════════════════════════ */

:root {
  /* Categorical palette — one distinct hue per asset class. */
  --ac-sp500:     #3B82F6;  /* blue   */
  --ac-accmx:     #22d3ee;  /* cyan   */
  --ac-fondos:    #a78bfa;  /* violet */
  --ac-bienes:    #14b8a6;  /* teal   */
  --ac-cripto:    #f472b6;  /* pink   */
  --ac-oro:       #eab308;  /* gold   */
  /* References — muted, drawn dashed. */
  --ac-cetes:     #94a3b8;
  --ac-inflacion: #cb8f8f;
  /* Portfolio — deliberately distinct from every class. */
  --ac-portfolio: #f59e0b;
}
:root[data-theme="light"] {
  --ac-sp500:     #2563EB;
  --ac-accmx:     #0891b2;
  --ac-fondos:    #7c3aed;
  --ac-bienes:    #0d9488;
  --ac-cripto:    #db2777;
  --ac-oro:       #ca8a04;
  --ac-cetes:     #64748b;
  --ac-inflacion: #b06a6a;
  --ac-portfolio: #d97706;
}

/* ── Card shell (collapsed on Tablero, expands to the widget) ─────────────── */
.ac-card { display: flex; flex-direction: column; }
.ac-card__head {
  display: flex; align-items: center; gap: .75rem;
  cursor: pointer; user-select: none;
}
.ac-card__titles { display: flex; flex-direction: column; gap: 2px; }
.ac-card__title { font-size: .95rem; font-weight: 600; color: var(--text-primary); }
.ac-card__sub   { font-size: .72rem; color: var(--text-tertiary); }
.ac-card__chevron {
  margin-left: auto; color: var(--text-tertiary); font-size: 1.1rem;
  transition: transform .2s ease;
}
.ac-card[data-open="true"] .ac-card__chevron { transform: rotate(180deg); }
.ac-card__body { margin-top: 1rem; }
.ac-card[data-open="false"] .ac-card__body { display: none; }

/* ── Controls row ────────────────────────────────────────────────────────── */
.ac-controls {
  display: flex; flex-wrap: wrap; gap: .5rem; align-items: center;
  margin-bottom: 1rem;
}
.ac-segmented {
  display: inline-flex; background: var(--bg-panel-alt);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 2px; gap: 2px; flex-wrap: wrap;
}
.ac-seg-btn {
  border: 0; background: transparent; color: var(--text-secondary);
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .02em;
  padding: .32rem .6rem; border-radius: 6px; cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.ac-seg-btn:hover { color: var(--text-primary); }
.ac-seg-btn--active { background: var(--accent); color: #fff; }
:root[data-theme="light"] .ac-seg-btn--active { color: #fff; }
.ac-controls__spacer { flex: 1 1 auto; }

/* ── Bars view ───────────────────────────────────────────────────────────── */
.ac-bars { display: flex; flex-direction: column; gap: .55rem; }
.ac-bar-row { display: grid; grid-template-columns: 9rem 1fr auto; align-items: center; gap: .6rem; }
.ac-bar-label { display: flex; align-items: center; gap: .4rem; min-width: 0; }
.ac-bar-label__dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; }
.ac-bar-label__text {
  font-size: .78rem; color: var(--text-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ac-bar-track {
  position: relative; height: 22px; background: var(--bg-panel-alt);
  border-radius: 6px; overflow: hidden;
}
.ac-bar-fill {
  position: absolute; top: 0; bottom: 0; left: 50%;
  border-radius: 5px; min-width: 2px; transition: width .5s ease, left .5s ease;
}
.ac-bar-zero { position: absolute; top: -3px; bottom: -3px; left: 50%; width: 1px; background: var(--border); }
.ac-bar-value {
  font-family: var(--font-mono); font-size: .82rem; font-weight: 500;
  text-align: right; min-width: 4.2rem;
}
.ac-bar-value--up   { color: var(--up); }
.ac-bar-value--down { color: var(--down); }

/* Portfolio bar — emphasised. */
.ac-bar-row--portfolio .ac-bar-label__text { color: var(--text-primary); font-weight: 600; }
.ac-bar-row--portfolio .ac-bar-track { outline: 1px solid var(--ac-portfolio); outline-offset: 1px; }

/* Insufficient / greyed. */
.ac-bar-row--empty { opacity: .55; }
.ac-bar-row--empty .ac-bar-track { background: repeating-linear-gradient(
  45deg, var(--bg-panel-alt), var(--bg-panel-alt) 6px, transparent 6px, transparent 12px); }
.ac-bar-empty-note { font-size: .68rem; color: var(--text-tertiary); font-style: italic; }

/* ── Lines view ──────────────────────────────────────────────────────────── */
.ac-lines-wrap { position: relative; width: 100%; height: var(--chart-h, 280px); }
.ac-lines-scroll { width: 100%; overflow-x: auto; }
.ac-lines-scroll canvas { min-width: 100%; }

/* ── Legend + risk chips ─────────────────────────────────────────────────── */
.ac-legend { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .9rem; }
.ac-chip {
  display: inline-flex; align-items: center; gap: .4rem;
  background: var(--bg-panel-alt); border: 1px solid var(--border-subtle);
  border-radius: 999px; padding: .28rem .6rem; font-size: .7rem;
  color: var(--text-secondary); cursor: default;
}
.ac-chip__dot { width: 8px; height: 8px; border-radius: 50%; flex: 0 0 auto; }
.ac-chip__risk { font-family: var(--font-mono); color: var(--text-tertiary); font-size: .66rem; }
.ac-chip--muted { opacity: .7; }
.ac-chip__badge {
  font-size: .58rem; text-transform: uppercase; letter-spacing: .04em;
  padding: 1px 5px; border-radius: 4px; background: var(--warn);
  color: #1a1200; font-weight: 600;
}
:root[data-theme="light"] .ac-chip__badge { color: #3a2a00; }
.ac-chip__badge--info { background: var(--accent-dim); color: var(--accent-light); }

/* ── Takeaway + footer ───────────────────────────────────────────────────── */
.ac-takeaway {
  margin-top: 1rem; padding: .75rem .9rem;
  background: var(--accent-dim); border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm); font-size: .82rem; color: var(--text-primary);
  line-height: 1.4;
}
.ac-takeaway strong { color: var(--ac-portfolio); }
.ac-meta { margin-top: .7rem; font-size: .68rem; color: var(--text-tertiary); }
.ac-footer {
  margin-top: .6rem; padding-top: .6rem; border-top: 1px solid var(--border-subtle);
  font-size: .66rem; color: var(--text-tertiary); font-style: italic;
}
.ac-state { padding: 1.5rem; text-align: center; color: var(--text-tertiary); font-size: .8rem; }

/* ── Responsive: 380px pass ──────────────────────────────────────────────── */
@media (max-width: 440px) {
  .ac-bar-row { grid-template-columns: 1fr auto; }
  .ac-bar-track { grid-column: 1 / -1; order: 3; }
  .ac-bar-value { order: 2; }
  .ac-lines-scroll canvas { min-width: 560px; }
}