#ioi-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  width: 300px;
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.10);
  z-index: 9999;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  #ioi-banner {
    background: #1e1e1e;
    border-color: rgba(255,255,255,0.12);
  }
}

#ioi-banner.hidden {
  display: none;
}

#ioi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 8px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

@media (prefers-color-scheme: dark) {
  #ioi-header { border-bottom-color: rgba(255,255,255,0.08); }
}

#ioi-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #e6f1fb;
  color: #0c447c;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 99px;
}

@media (prefers-color-scheme: dark) {
  #ioi-badge { background: #0c447c; color: #b5d4f4; }
}

#ioi-badge svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
}

#ioi-close {
  background: none;
  border: none;
  cursor: pointer;
  color: #888;
  padding: 2px;
  line-height: 1;
  display: flex;
  align-items: center;
  border-radius: 4px;
}

#ioi-close:hover { color: #333; background: rgba(0,0,0,0.06); }

@media (prefers-color-scheme: dark) {
  #ioi-close { color: #aaa; }
  #ioi-close:hover { color: #fff; background: rgba(255,255,255,0.08); }
}

#ioi-body {
  padding: 12px 14px 14px;
}

#ioi-title {
  font-size: 14px;
  font-weight: 600;
  color: #111;
  margin: 0 0 3px;
}

@media (prefers-color-scheme: dark) {
  #ioi-title { color: #f0f0f0; }
}

#ioi-sub {
  font-size: 12px;
  color: #666;
  margin: 0 0 12px;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  #ioi-sub { color: #aaa; }
}

#ioi-sub strong {
  color: #333;
}

@media (prefers-color-scheme: dark) {
  #ioi-sub strong { color: #ddd; }
}

#ioi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}

.ioi-unit {
  background: #f4f4f4;
  border-radius: 8px;
  text-align: center;
  padding: 8px 4px 6px;
}

@media (prefers-color-scheme: dark) {
  .ioi-unit { background: #2a2a2a; }
}

.ioi-num {
  display: block;
  font-size: 22px;
  font-weight: 600;
  color: #111;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
}

@media (prefers-color-scheme: dark) {
  .ioi-num { color: #f0f0f0; }
}

.ioi-lbl {
  display: block;
  font-size: 9px;
  color: #999;
  margin-top: 3px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

#ioi-cta {
  width: 100%;
  font-size: 12px;
  padding: 8px 0;
  background: #185fa5;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  transition: background 0.15s;
}

#ioi-cta:hover { background: #0c447c; }

#ioi-done {
  font-size: 13px;
  font-weight: 600;
  color: #1a7a4a;
  text-align: center;
  padding: 6px 0 10px;
}

@media (prefers-color-scheme: dark) {
  #ioi-done { color: #5dca8a; }
}