/* ══════════════════════════════════════════════════════════════
   PORTFOLIO DIFF PANEL — upload change summary
   Add these rules to the bottom of css/style.css
   ══════════════════════════════════════════════════════════════ */

/* Outer wrapper — sits between apply-msg and the drop zones */
#diff-panel-container {
  margin-bottom: 16px;
}

/* Main panel card */
.diff-panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  animation: diff-slide-in 0.35s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes diff-slide-in {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Panel header bar */
.diff-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.diff-header-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.diff-header-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text);
  flex-shrink: 0;
}

.diff-header-badge {
  font-size: 9px;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: 4px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.diff-badge-amber {
  background: var(--amber-bg);
  color: var(--amber);
  border: 1px solid #4a3500;
}

.diff-badge-neutral {
  background: var(--bg4);
  color: var(--muted);
  border: 1px solid var(--border);
}

.diff-collapse-btn {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--muted);
  font-size: 10px;
  font-family: var(--mono);
  padding: 3px 10px;
  cursor: pointer;
  transition: all .15s;
  flex-shrink: 0;
}

.diff-collapse-btn:hover {
  color: var(--text);
  border-color: var(--border2);
}

/* KPI delta strip */
.diff-kpi-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 1px;
  background: var(--border);
  border-bottom: 1px solid var(--border);
}

.diff-kpi-tile {
  background: var(--bg2);
  padding: 10px 14px;
}

.diff-kpi-label {
  font-size: 9px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-bottom: 4px;
}

.diff-kpi-val {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

/* Change sections */
.diff-section {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.diff-section:last-of-type {
  border-bottom: none;
}

.diff-section-title {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.diff-section-green .diff-section-title { color: var(--green); }
.diff-section-red   .diff-section-title { color: var(--red);   }
.diff-section-blue  .diff-section-title { color: var(--blue);  }
.diff-section-muted .diff-section-title { color: var(--muted); }

/* Left accent stripe per section */
.diff-section-green { border-left: 3px solid var(--green); }
.diff-section-red   { border-left: 3px solid var(--red);   }
.diff-section-blue  { border-left: 3px solid var(--blue);  }
.diff-section-muted { border-left: 3px solid var(--muted2); }

/* Individual diff rows */
.diff-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  animation: diff-row-in 0.25s ease both;
}

.diff-row:last-child {
  border-bottom: none;
}

@keyframes diff-row-in {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* Stagger row animations */
.diff-row:nth-child(1) { animation-delay: .04s; }
.diff-row:nth-child(2) { animation-delay: .08s; }
.diff-row:nth-child(3) { animation-delay: .12s; }
.diff-row:nth-child(4) { animation-delay: .16s; }
.diff-row:nth-child(5) { animation-delay: .20s; }
.diff-row:nth-child(6) { animation-delay: .24s; }

.diff-asset-pill {
  font-size: 8px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 3px;
  flex-shrink: 0;
  letter-spacing: .05em;
}

.diff-pill-mf {
  background: rgba(88,166,255,.12);
  color: var(--blue);
  border: 1px solid rgba(88,166,255,.25);
}

.diff-pill-st {
  background: rgba(163,113,247,.12);
  color: #a371f7;
  border: 1px solid rgba(163,113,247,.25);
}

.diff-row-name {
  font-size: 11px;
  font-weight: 500;
  color: var(--text);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.diff-row-meta {
  font-size: 10px;
  color: var(--muted);
  flex-shrink: 0;
  text-align: right;
  min-width: 0;
}

@media (max-width: 600px) {
  .diff-row { flex-wrap: wrap; }
  .diff-row-meta { flex: 0 0 100%; text-align: left; padding-left: 44px; }
}

.diff-delta-chip {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid;
  background: transparent;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Light theme overrides */
:root.light .diff-panel          { background: var(--bg2); }
:root.light .diff-kpi-strip      { background: var(--border); }
:root.light .diff-badge-amber    { border-color: #e8d4a0; }
:root.light .diff-pill-mf        { border-color: rgba(9,105,218,.25); }
:root.light .diff-pill-st        { border-color: rgba(130,80,223,.25); }