/* ════════════════════════════════════════════════════════
 * page-growth-bem.css — Turn B
 * BEM 元件層：page head / KPI / chart card / chart row
 * 全部 scope 至 .growth-analysis-page
 * ════════════════════════════════════════════════════════ */

/* ── Page head ──────────────────────────────────────── */
.growth-analysis-page .ga-page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--momo-space-3, 16px);
  padding: var(--momo-space-3, 16px) var(--momo-space-4, 20px);
  margin-top: var(--momo-space-3, 16px);
  background: var(--momo-surface-1);
  border: 1px solid var(--momo-border-subtle);
  border-radius: var(--momo-radius-md, 8px);
  box-shadow: var(--momo-shadow-soft);
}
.growth-analysis-page .ga-page-head__title {
  display: flex;
  align-items: center;
  gap: var(--momo-space-2, 12px);
}
.growth-analysis-page .ga-page-head__icon {
  font-size: 1.25rem;
  color: var(--momo-warm-olive, #6f7a4a);
}
.growth-analysis-page .ga-page-head__h1 {
  font-size: var(--momo-text-h4, 1.25rem);
  font-weight: 800;
  color: var(--momo-text-strong);
  margin: 0;
}
.growth-analysis-page .ga-page-head__meta {
  font-size: var(--momo-text-sm, 0.85rem);
  color: var(--momo-text-tertiary);
}
.growth-analysis-page .ga-page-head__meta strong {
  color: var(--momo-text-strong);
  font-weight: 700;
}

.growth-analysis-page .ga-empty-state {
  display: grid;
  gap: var(--momo-space-2, 8px);
  padding: var(--momo-space-8, 40px) var(--momo-space-5, 24px);
  margin-bottom: var(--momo-space-4, 20px);
  color: var(--momo-ink-secondary);
  background: var(--momo-surface-0);
  border: 1px solid var(--momo-border-light);
  border-radius: var(--momo-radius-md, 8px);
  text-align: center;
}

.growth-analysis-page .ga-empty-state i {
  color: var(--momo-warm-honey-deep);
  font-size: var(--momo-text-2xl, 1.5rem);
}

.growth-analysis-page .ga-empty-state h2 {
  margin: 0;
  color: var(--momo-ink-primary);
  font-size: var(--momo-text-lg, 1.125rem);
  font-weight: var(--momo-font-bold, 700);
}

.growth-analysis-page .ga-empty-state p {
  margin: 0;
  color: var(--momo-ink-tertiary);
}

/* ── KPI Row ────────────────────────────────────────── */
.growth-analysis-page .ga-kpi-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--momo-space-3, 16px);
}
@media (max-width: 992px) {
  .growth-analysis-page .ga-kpi-row { grid-template-columns: 1fr; }
}

.growth-analysis-page .ga-kpi {
  position: relative;
  overflow: hidden;
  padding: var(--momo-space-4, 24px);
  border-radius: var(--momo-radius-md, 8px);
  color: var(--momo-text-strong);
  background: var(--momo-surface-raised);
  border: 1px solid var(--momo-border-strong);
  border-left: 4px solid var(--ga-kpi-accent, var(--momo-page-accent));
  box-shadow: var(--momo-shadow-soft);
  min-height: 132px;
}
.growth-analysis-page .ga-kpi--revenue {
  --ga-kpi-accent: var(--momo-page-accent);
}
.growth-analysis-page .ga-kpi--aov {
  --ga-kpi-accent: var(--momo-tag-honey);
}
.growth-analysis-page .ga-kpi--orders {
  --ga-kpi-accent: var(--momo-tag-olive);
}

.growth-analysis-page .ga-kpi__label {
  position: relative;
  z-index: 1;
  font-size: var(--momo-text-sm, 0.85rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--momo-text-muted);
  margin-bottom: var(--momo-space-2, 8px);
}
.growth-analysis-page .ga-kpi__value {
  position: relative;
  z-index: 1;
  color: var(--momo-text-strong);
  font-family: var(--momo-font-mono, ui-monospace, monospace);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0;
  margin-bottom: var(--momo-space-1, 4px);
  line-height: 1.08;
}
.growth-analysis-page .ga-kpi__delta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--momo-space-1, 6px);
  margin-top: var(--momo-space-2, 8px);
}
.growth-analysis-page .ga-kpi__chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  background: color-mix(in srgb, var(--ga-kpi-accent) 12%, var(--momo-surface));
  color: var(--ga-kpi-accent);
  border: 1px solid color-mix(in srgb, var(--ga-kpi-accent) 28%, var(--momo-border-subtle));
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 6px;
}
.growth-analysis-page .ga-kpi__yoy {
  font-weight: 700;
  font-size: 0.95rem;
}
.growth-analysis-page .ga-kpi__yoy.is-up   { color: var(--momo-tag-rust); }
.growth-analysis-page .ga-kpi__yoy.is-down { color: var(--momo-tag-olive); }
.growth-analysis-page .ga-kpi__hint {
  position: relative;
  z-index: 1;
  font-size: var(--momo-text-xs, 0.78rem);
  color: var(--momo-text-muted);
  margin-top: 2px;
}
.growth-analysis-page .ga-kpi__icon-bg {
  position: absolute;
  right: -15px;
  bottom: -15px;
  font-size: 6rem;
  color: var(--ga-kpi-accent);
  opacity: 0.1;
  transform: rotate(-15deg);
  pointer-events: none;
}

/* ── Chart Row 變體 ─────────────────────────────────── */
.growth-analysis-page .ga-chart-row {
  display: grid;
  gap: var(--momo-space-3, 16px);
}
.growth-analysis-page .ga-chart-row--8-4 { grid-template-columns: 2fr 1fr; }
.growth-analysis-page .ga-chart-row--6-6 { grid-template-columns: 1fr 1fr; }
@media (max-width: 992px) {
  .growth-analysis-page .ga-chart-row--8-4,
  .growth-analysis-page .ga-chart-row--6-6 { grid-template-columns: 1fr; }
}

/* ── Chart Card ─────────────────────────────────────── */
.growth-analysis-page .ga-chart-card {
  display: flex;
  flex-direction: column;
  background: var(--momo-surface-1);
  border: 1px solid var(--momo-border-strong);
  border-radius: var(--momo-radius-md, 8px);
  box-shadow: var(--momo-shadow-soft);
  overflow: hidden;
}
.growth-analysis-page .ga-chart-card__head {
  padding: 1rem 1.25rem;
  background: var(--momo-surface-2);
  border-bottom: 1px solid var(--momo-border-subtle);
}
.growth-analysis-page .ga-chart-card__title {
  display: inline-flex;
  align-items: center;
  gap: var(--momo-space-1, 8px);
  font-weight: 800;
  color: var(--momo-text-strong);
}
.growth-analysis-page .ga-chart-card__title i {
  color: var(--momo-warm-olive, #6f7a4a);
}
.growth-analysis-page .ga-chart-card__body {
  padding: var(--momo-space-3, 16px);
  height: var(--ga-chart-h, 320px);
}
.growth-analysis-page .ga-chart-card__body canvas {
  width: 100% !important;
  height: 100% !important;
}

@media (max-width: 640px) {
  .growth-analysis-page .ga-page-head {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 16px;
  }

  .growth-analysis-page .ga-kpi {
    min-height: 112px;
    padding: 16px;
  }

  .growth-analysis-page .ga-kpi__value {
    font-size: 1.45rem;
  }

  .growth-analysis-page .ga-chart-card__body {
    height: 260px !important;
  }
}