/* Inventory Tool — light theme, navy section headers, no Google Fonts. */

:root {
  --navy:       #1a4b8c;
  --text:       #222;
  --text-dim:   #666;
  --border:     #e4e4e4;
  --bg:         #fff;
  --bg-alt:     #fafafa;
  --bg-hover:   #f2f5fa;
  --warn-bg:    #fff8d6;
  --warn-fg:    #7a5d00;
  --ok-bg:      #e8f5e9;
  --ok-fg:      #2e7d32;
  --pos:        #2e7d32;   /* green — growth / positive */
  --neg:        #c62828;   /* red — decline / negative */
  --neutral:    #666;
  --hot-bg:     #ffe8d6;   --hot-fg:   #c1480b;
  --up-bg:      #e3f2e5;   --up-fg:    #1f7a2c;
  --stable-bg:  #eef0f3;   --stable-fg:#555;
  --down-bg:    #ffe7e5;   --down-fg:  #b22915;
  --cold-bg:    #e0ecf7;   --cold-fg:  #1f5faa;
  --na-bg:      #f4f4f4;   --na-fg:    #999;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               Helvetica, Arial, sans-serif;
  color: var(--text); background: var(--bg);
}

/* ── Top bar ─────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: .7rem 1.2rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.brand { margin: 0; font-size: 1.05rem; font-weight: 700; color: var(--text); }
.country-switch label {
  margin-right: .4rem; font-size: .82rem; color: var(--text-dim);
}
.country-switch select {
  padding: .25rem .5rem; font: inherit;
  border: 1px solid var(--border); border-radius: 4px;
  background: var(--bg);
}

/* ── Tab bar ─────────────────────────────────────────── */
.tabs {
  position: sticky; top: 48px; z-index: 9;
  display: flex; flex-wrap: wrap;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: 0 1rem;
}
.tab-btn {
  padding: .65rem 1rem;
  background: transparent; border: 0; cursor: pointer;
  font: inherit; color: var(--text-dim);
  border-bottom: 2px solid transparent;
}
.tab-btn:hover { color: var(--text); background: var(--bg-hover); }
.tab-btn.active {
  color: var(--navy); border-bottom-color: var(--navy); font-weight: 600;
}

/* ── Main content ────────────────────────────────────── */
main#content { max-width: 1280px; margin: 0 auto; padding: 1.2rem; }
.loading, .placeholder {
  padding: 3rem 1rem; text-align: center; color: var(--text-dim);
}
.placeholder.status-warn {
  background: var(--warn-bg); color: var(--warn-fg); border-radius: 6px;
}

/* ── Stats dashboard ─────────────────────────────────── */
.dash-wrap { margin-bottom: 1.4rem; }
.dash-header { display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: .7rem; flex-wrap: wrap; gap: .4rem; }
.dash-title { font-size: 1.4rem; font-weight: 700; color: var(--text); }
.dash-meta  { font-size: .78rem; color: var(--text-dim); }
.dash-cards {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: .7rem;
}
.dash-card {
  padding: .85rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
}
.dc-label { font-size: .75rem; color: var(--text-dim); letter-spacing: .02em; }
.dc-value { font-size: 1.55rem; font-weight: 700; color: var(--text);
  font-variant-numeric: tabular-nums; margin-top: .1rem; }
.dc-sub   { font-size: .76rem; color: var(--text-dim); margin-top: .1rem; }
@media (max-width: 720px) {
  .dash-cards { grid-template-columns: repeat(2, 1fr); }
}

/* ── Semantic coloring for numbers ───────────────────── */
.stat-pos { color: var(--pos); font-weight: 600; }
.stat-neg { color: var(--neg); font-weight: 600; }
.stat-neutral { color: var(--neutral); }

/* ── Trend badges (HOT / UP / STABLE / DOWN / COLD) ──── */
.trend-badge {
  display: inline-flex; align-items: center; gap: .25rem;
  padding: .15rem .45rem;
  font-size: .7rem; font-weight: 700;
  border-radius: 3px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.trend-badge.trend-hot    { background: var(--hot-bg);    color: var(--hot-fg); }
.trend-badge.trend-up     { background: var(--up-bg);     color: var(--up-fg); }
.trend-badge.trend-stable { background: var(--stable-bg); color: var(--stable-fg); }
.trend-badge.trend-down   { background: var(--down-bg);   color: var(--down-fg); }
.trend-badge.trend-cold   { background: var(--cold-bg);   color: var(--cold-fg); }
.trend-badge.trend-na     { background: var(--na-bg);     color: var(--na-fg); }

/* ── Parent rows ─────────────────────────────────────── */
.parent-row {
  display: flex; align-items: center; gap: .7rem;
  padding: .8rem 1rem; cursor: pointer;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.parent-row:hover { background: var(--bg-hover); }
.parent-row .chevron { width: 12px; color: var(--text-dim); flex-shrink: 0; }
.parent-row .alias {
  font-weight: 700; color: var(--navy); font-size: 1rem;
  min-width: 5ch; flex-shrink: 0;
}
.parent-row .family {
  color: var(--text); font-size: .88rem;
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.parent-row .parent-stat {
  font-size: .82rem; color: var(--text-dim);
  font-variant-numeric: tabular-nums; flex-shrink: 0;
}
.parent-row .pasin {
  font-family: "SFMono-Regular", Menlo, monospace;
  color: var(--text-dim); font-size: .75rem; flex-shrink: 0;
}

/* ── Child blocks ────────────────────────────────────── */
.child-block {
  padding: .9rem 1rem 1.2rem 2.2rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.child-header {
  display: flex; align-items: center; gap: .7rem;
  margin-bottom: .3rem; flex-wrap: wrap;
}
.child-header .sku {
  font-family: "SFMono-Regular", Menlo, monospace;
  font-size: .88rem; color: var(--text); font-weight: 600;
}
.child-header .asin {
  font-family: "SFMono-Regular", Menlo, monospace;
  font-size: .76rem; color: var(--text-dim);
}
.child-header .child-stat {
  font-size: .78rem;
  font-variant-numeric: tabular-nums; color: var(--text-dim);
}
.child-header .child-stat b { color: var(--text); font-weight: 600; }
.child-header .price {
  margin-left: auto;
  font-variant-numeric: tabular-nums; color: var(--text-dim);
  font-size: .82rem;
}

/* Shared control bar above all children of an expanded parent */
.parent-controls {
  display: flex; gap: 1.2rem; align-items: center;
  padding: .6rem 1rem;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  font-size: .82rem; color: var(--text-dim);
}
.child-list-wrap { background: var(--bg-alt); }

.child-controls {
  display: flex; gap: 1.2rem; margin: .45rem 0 .4rem;
  font-size: .82rem; color: var(--text-dim);
}
.range-group { display: flex; gap: .2rem; }
.range-btn {
  padding: .2rem .55rem;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 3px; cursor: pointer;
  font: inherit; font-size: .78rem;
  color: var(--text-dim);
}
.range-btn.active {
  background: var(--navy); color: #fff; border-color: var(--navy);
  font-weight: 600;
}
.metric-group label { margin-right: .8rem; cursor: pointer; }

.chart-wrap { position: relative; height: 200px; }
.chart-empty {
  display: flex; align-items: center; justify-content: center;
  height: 200px; color: var(--text-dim);
  background: var(--bg);
  border: 1px dashed var(--border); border-radius: 4px;
  font-size: .85rem;
}
.chart-note {
  font-size: .75rem; color: var(--warn-fg);
  background: var(--warn-bg);
  padding: .2rem .6rem; border-radius: 3px;
  margin-bottom: .4rem; display: inline-block;
}

/* ── 1Y / 2Y analysis panel shown below the chart ────────── */
.chart-analysis {
  margin-top: .6rem; padding: .6rem .9rem;
  background: #f5f8fc; border-left: 3px solid var(--navy);
  border-radius: 3px; font-size: .85rem; color: var(--text);
}
.chart-analysis .ana-title {
  font-weight: 700; color: var(--navy); margin-bottom: .25rem;
  font-size: .8rem; letter-spacing: .02em;
}
.chart-analysis .ana-list {
  margin: 0; padding-left: 1.1rem;
}
.chart-analysis .ana-list li {
  margin: .15rem 0; line-height: 1.55;
}
.chart-analysis .ana-list b {
  color: var(--navy); font-weight: 600;
}
.chart-analysis .ana-delta {
  color: var(--text-dim); font-size: .8rem;
}