:root {
  color-scheme: light dark;
  --bg-page:         #f5f7fa;
  --bg-card:         #ffffff;
  --text-primary:    #1a1a2e;
  --text-secondary:  #555;
  --text-muted:      #888;
  --ring-bg:         #dde1e9;
  --border-color:    rgba(0,0,0,0.08);
  --border-subtle:   #e0e0e0;
  --bg-track:        #eee;
  --bg-chip:         #eef2f7;
  --badge-target-bg: #e8e8e8;
  --badge-target-fg: #555;
  --divider:         #f0f0f0;
  --target-line:     rgba(0,0,0,0.35);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg-page:         #12141c;
    --bg-card:         #1e2130;
    --text-primary:    #e0e4f0;
    --text-secondary:  #9aa0b4;
    --text-muted:      #6b7280;
    --ring-bg:         #2c3040;
    --border-color:    rgba(255,255,255,0.06);
    --border-subtle:   #2c3040;
    --bg-track:        #2c3040;
    --bg-chip:         #1a2035;
    --badge-target-bg: #2c3040;
    --badge-target-fg: #9aa0b4;
    --divider:         #2c3040;
    --target-line:     rgba(255,255,255,0.35);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  padding: 8px 12px;
}

#page-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}
h1 { font-size: 1.4rem; margin: 0; color: var(--text-primary); }

.card {
  background: var(--bg-card);
  border-radius: 10px;
  padding: 14px 14px 16px;
  margin-bottom: 12px;
  box-shadow: 0 1px 4px var(--border-color);
}

/* Overview donut */
.donut-row {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}
.donut-container {
  width: min(440px, 100vw);
}
.donut-container svg {
  width: 100%;
  height: auto;
  overflow: visible;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

/* Per-slice cards */
.card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 14px;
}
.card-title  { font-size: 1rem; font-weight: 600; flex-shrink: 0; }
.card-summary { font-size: 0.82rem; color: var(--text-secondary); cursor: pointer; text-align: right; }

/* Slice rows */
.slice-row { margin-bottom: 16px; }
.slice-row:last-child { margin-bottom: 0; }
.slice-row-children {
  padding-left: 12px;
  border-left: 2px solid var(--border-subtle);
  margin-left: 6px;
  margin-top: 10px;
}
.slice-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  margin-bottom: 5px;
  font-size: 0.85rem;
}
.slice-left  { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; }
.slice-name  { font-weight: 500; }
.ticker-chip {
  font-size: 0.68rem;
  background: var(--bg-chip);
  color: #4e79a7;
  border-radius: 3px;
  padding: 1px 4px;
  font-weight: 600;
}
.slice-right { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; font-size: 0.78rem; color: var(--text-secondary); cursor: pointer; }

.diff-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
}
.over      { background: #d4edda; color: #155724; }
.under     { background: #f8d7da; color: #721c24; }
.on-target { background: var(--badge-target-bg); color: var(--badge-target-fg); }

/* Progress bar */
.bar-track {
  position: relative;
  height: 12px;
  background: var(--bg-track);
  border-radius: 6px;
  overflow: hidden;
}
.bar-actual {
  position: absolute;
  height: 100%;
  border-radius: 5px;
  transition: width 0.4s ease;
}
.bar-target-line {
  position: absolute;
  top: 0;
  width: 2px;
  height: 100%;
  background: var(--target-line);
  border-radius: 1px;
}

/* Issues warning */
.warning-card {
  background: #fff8e1;
  border: 1px solid #ffe082;
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 0.85rem;
  color: #7a5700;
}
.warning-card strong  { display: block; margin-bottom: 4px; }
.warning-card summary { color: #7a5700; }
.warning-card .unmatched-item { color: #7a5700; border-bottom-color: #ffe082; }

details { margin-top: 8px; }
summary {
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 0;
  user-select: none;
}
.unmatched-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  padding: 4px 0;
  border-bottom: 1px solid var(--divider);
  color: var(--text-secondary);
}

#account-bar { visibility: hidden; }
#account-select {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.85rem;
  padding: 5px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
}

#loading { padding: 16px 0; display: none; }
.skeleton-donut-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}
.skeleton-donut {
  width: min(440px, 100vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 44px solid var(--ring-bg);
  box-sizing: border-box;
}
.skeleton-card {
  height: 64px; border-radius: 12px;
  background: var(--ring-bg);
  margin-bottom: 16px;
}
.skeleton-msg {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.skeleton-donut, .skeleton-card {
  animation: skeleton-pulse 1.4s ease-in-out infinite;
}
@keyframes skeleton-pulse { 0%, 100% { opacity: 1 } 50% { opacity: 0.45 } }
#error   { color: #c0392b; padding: 20px; }
#signin-btn {
  display: none;
  margin: 40px auto;
  padding: 10px 20px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #4285f4;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}