/*
 * Brain Diff — comparação entre 2 commits do Bailder.
 * Usa vars do design system (--neon-*, --bg-*, --motion-*, --color-*).
 * Verde = added · vermelho = removed · âmbar = changed · cinza = unchanged.
 */

.bdiff__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.bdiff__title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.bdiff__share {
  display: flex;
  gap: var(--space-sm);
}

.bdiff__form {
  display: flex;
  align-items: end;
  gap: var(--space-md);
  flex-wrap: wrap;
  background: var(--bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.bdiff__form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-width: 220px;
}

.bdiff__form-field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faded);
}

.bdiff__form-field select {
  background: var(--bg-deep);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.bdiff__empty {
  padding: var(--space-2xl) var(--space-md);
  text-align: center;
  color: var(--color-text-muted);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
}

/* ---------- Commit cards header ---------- */

.bdiff__commit-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-md);
  align-items: center;
  margin-bottom: var(--space-lg);
}

.bdiff__commit-card {
  background: var(--bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.bdiff__commit-card--from { border-left: 4px solid var(--neon-amber); }
.bdiff__commit-card--to   { border-left: 4px solid var(--neon-cyan); }

.bdiff__commit-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-faded);
}

.bdiff__commit-sha {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--color-text);
  font-weight: 600;
}

.bdiff__commit-subject {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.bdiff__commit-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-faded);
}

.bdiff__commit-arrow {
  font-size: 2rem;
  color: var(--neon-purple);
  text-align: center;
  filter: drop-shadow(0 0 8px rgba(180, 126, 255, 0.4));
}

/* ---------- Diff body ---------- */

.bdiff {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.bdiff__section {
  background: var(--bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.bdiff__section-title {
  margin: 0 0 var(--space-md) 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-faded);
  font-family: var(--font-mono);
}

.bdiff__unchanged {
  margin: 0;
  color: var(--color-text-faded);
  font-style: italic;
  font-size: 0.9rem;
}

/* ---------- Rows ---------- */

.bdiff__rows {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.bdiff__row {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 2fr;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--bg-deep);
  align-items: baseline;
}

.bdiff__row--added     { border-left: 3px solid var(--neon-green); background: rgba(0, 255, 157, 0.04); }
.bdiff__row--removed   { border-left: 3px solid var(--neon-red);   background: rgba(255, 61, 92, 0.04); }
.bdiff__row--changed   { border-left: 3px solid var(--neon-amber); background: rgba(255, 199, 59, 0.04); }
.bdiff__row--unchanged { opacity: 0.6; }

.bdiff__row-label {
  color: var(--color-text);
  font-size: 0.92rem;
}

.bdiff__row-values {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  flex-wrap: wrap;
}

.bdiff__row-from {
  color: var(--color-text-faded);
  text-decoration: line-through;
  text-decoration-color: rgba(255, 199, 59, 0.4);
}

.bdiff__row-arrow { color: var(--color-text-faded); }

.bdiff__row-to { color: var(--color-text); font-weight: 600; }

.bdiff__row-delta {
  padding: 1px 8px;
  border-radius: var(--radius-full);
  background: rgba(255, 199, 59, 0.12);
  color: var(--neon-amber);
  font-size: 0.78rem;
  font-weight: 600;
}

.bdiff__row-unit {
  color: var(--color-text-faded);
  font-size: 0.78rem;
  font-family: var(--font-body);
}

.bdiff__row--unchanged .bdiff__row-from { text-decoration: none; }

/* ---------- Lists (added/removed/kept) ---------- */

.bdiff__lists {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
}

.bdiff__list {
  background: var(--bg-deep);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
}

.bdiff__list--added   { border-left: 3px solid var(--neon-green); }
.bdiff__list--removed { border-left: 3px solid var(--neon-red); }
.bdiff__list--kept    { border-left: 3px solid var(--color-border-strong); opacity: 0.7; }

.bdiff__list h4 {
  margin: 0 0 var(--space-sm) 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.bdiff__list--added   h4 { color: var(--neon-green); }
.bdiff__list--removed h4 { color: var(--neon-red); }

.bdiff__list summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.bdiff__list ul {
  margin: 0;
  padding-left: var(--space-md);
  list-style: none;
}

.bdiff__list li {
  padding: 2px 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-text);
}

.bdiff__list code {
  background: var(--bg-elevated);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .bdiff__commit-row {
    grid-template-columns: 1fr;
  }

  .bdiff__commit-arrow { display: none; }

  .bdiff__row {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }
}