:root {
  /* ── Background layers ── */
  --bg-base:        #0f0f13;
  --bg-surface:     #17171f;
  --bg-raised:      #1c1c28;
  --bg-hover:       #22222e;
  --bg-card-img:    #111118;

  /* ── Borders ── */
  --border:         #2a2a3a;
  --border-input:   #3a3a5a;
  --border-accent:  rgba(255,255,255,.18);

  /* ── Text ── */
  --text-primary:   #e0e0e0;
  --text-secondary: #c4c4d4;
  --text-muted:     #6b6b8a;
  --text-faint:     #44445a;
  --text-white:     #fff;

  /* ── Accent / brand ── */
  --accent:         #a78bfa;
  --accent-dim:     #888;

  /* ── Semantic colours ── */
  --color-up:       #34d399;   /* price / total increase */
  --color-down:     #f87171;   /* price / total decrease */
  --color-flat:     #6b6b8a;
  --color-new:      #fbbf24;   /* new-to-ranking */
  --color-rank-up:  #a78bfa;   /* rank improvement */
  --color-profit:   #34d399;
  --color-loss:     #f87171;

  /* ── Price tiers ── */
  --price-high:     #f87171;
  --price-mid:      #fbbf24;
  --price-low:      #34d399;

  /* ── Rarity tag colours ── */
  --r-c-bg:    #1a2a1a; --r-c-fg:    #6ee7b7;
  --r-uc-bg:   #1a1f2e; --r-uc-fg:   #93c5fd;
  --r-r-bg:    #1e2a3a; --r-r-fg:    #60a5fa;
  --r-sr-bg:   #2a1e3a; --r-sr-fg:   #c084fc;
  --r-sec-bg:  #2e1f4a; --r-sec-fg:  #e879f9;
  --r-sp-bg:   #2a1a1a; --r-sp-fg:   #f87171;
  --r-l-bg:    #2a2210; --r-l-fg:    #fbbf24;
  --r-pr-bg:   #1a2a2a; --r-pr-fg:   #34d399;
  --r-tr-bg:   #201a1a; --r-tr-fg:   #fb923c;
  --r-don-bg:  #1f1a10; --r-don-fg:  #facc15;

  /* ── Overlay badge colours ── */
  --badge-color-bg: #1e2a3a; --badge-color-fg: #60a5fa;
  --badge-type-bg:  #2a1e3a; --badge-type-fg:  #c084fc;

  /* ── Hit-chip type colours ── */
  --hit-sp-bg:      #1e2a3a; --hit-sp-type-bg:  #1e3a5a; --hit-sp-type-fg:  #60a5fa;
  --hit-sec-bg:     #2a1e3a; --hit-sec-type-bg: #3a1e5a; --hit-sec-type-fg: #c084fc;
  --hit-alt-bg:     #1e2e2a; --hit-alt-type-bg: #1a3a30; --hit-alt-type-fg: #34d399;
  --hit-manga-bg:   #2e1f4a; --hit-manga-bd:    #7c3aed;
  --hit-manga-type-bg: #4a1e7a; --hit-manga-type-fg: #e879f9;

  /* ── Misc ── */
  --overlay-scrim:  rgba(0,0,0,.75);
  --sidebar-scrim:  rgba(0,0,0,.5);
}

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

body {
  font-family: system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
}

/* ── Sidebar nav ── */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: 240px;
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 1.5rem 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
}
.sidebar-logo {
  display: block;
  width: 140px;
  margin: 0 auto 1rem;
}
.sidebar h1 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  padding: 0 1.2rem 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: .8rem;
}
.sidebar ul { list-style: none; }
.sidebar li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .1rem .4rem .1rem 1.2rem;
}
.sidebar a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: .85rem;
  flex: 1;
  padding: .35rem 0;
}
.sidebar a:hover { color: var(--accent); }
.nav-total {
  font-size: .75rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.grand-total {
  margin: 1rem 1.2rem 0;
  padding-top: .8rem;
  border-top: 1px solid var(--border);
  font-size: .8rem;
  color: var(--accent);
}

/* ── Main content ── */
.main {
  margin-left: 240px;
  padding: 2rem 2rem 4rem;
}

/* ── Set section ── */
.set-section {
  margin-bottom: 3.5rem;
  scroll-margin-top: 1.5rem;
}
.set-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg-base);
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
  padding: .6rem 0;
  border-bottom: 2px solid var(--border);
}
.set-header h2 {
  font-size: 1.3rem;
  color: var(--accent);
}
.set-stats {
  display: flex;
  gap: 1rem;
  font-size: .82rem;
  color: var(--text-muted);
}
.set-total, .set-avg { color: var(--text-secondary); }

/* ── Rarity filters ── */
.rarity-filters {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  padding: .4rem 0 .2rem;
  width: 100%;
}
.rf-tag {
  font-size: .7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 5px;
  border: 1px solid transparent;
  cursor: pointer;
  user-select: none;
  opacity: 0.45;
  transition: opacity .15s, border-color .15s;
}
.rf-tag.active {
  opacity: 1;
  border-color: var(--border-accent);
}
.rf-tag[data-r="C"]     { background: var(--r-c-bg);   color: var(--r-c-fg);   }
.rf-tag[data-r="UC"]    { background: var(--r-uc-bg);  color: var(--r-uc-fg);  }
.rf-tag[data-r="R"]     { background: var(--r-r-bg);   color: var(--r-r-fg);   }
.rf-tag[data-r="SR"]    { background: var(--r-sr-bg);  color: var(--r-sr-fg);  }
.rf-tag[data-r="SEC"]   { background: var(--r-sec-bg); color: var(--r-sec-fg); }
.rf-tag[data-r="SP"]    { background: var(--r-sp-bg);  color: var(--r-sp-fg);  }
.rf-tag[data-r="L"]     { background: var(--r-l-bg);   color: var(--r-l-fg);   }
.rf-tag[data-r="PR"]    { background: var(--r-pr-bg);  color: var(--r-pr-fg);  }
.rf-tag[data-r="TR"]    { background: var(--r-tr-bg);  color: var(--r-tr-fg);  }
.rf-tag[data-r="DON!!"] { background: var(--r-don-bg); color: var(--r-don-fg); }

/* ── Price buckets ── */
.price-buckets {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: .8rem;
}
.bucket {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .4rem .8rem;
  min-width: 72px;
}
.bucket-empty { opacity: .35; }
.bucket-label {
  font-size: .65rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.bucket-count {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
}

/* ── Collapsible chart ── */
.chart-details {
  margin-bottom: 1.2rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.chart-toggle {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .55rem 1rem;
  background: var(--bg-raised);
  cursor: pointer;
  font-size: .8rem;
  color: var(--accent);
  user-select: none;
  list-style: none;
}
.chart-toggle::-webkit-details-marker { display: none; }
.chart-toggle::before {
  content: "▶";
  font-size: .6rem;
  transition: transform .2s;
}
.chart-details[open] .chart-toggle::before { transform: rotate(90deg); }
.chart-toggle:hover { background: var(--bg-hover); }

.chart {
  padding: 1.2rem 1rem 1rem;
  background: var(--bg-surface);
}
.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: .75rem;
  height: 140px;
}
.bar-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  height: 100%;
}
.bar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  flex: 1;
  width: 100%;
  gap: 4px;
}
.bar {
  width: 100%;
  border-radius: 4px 4px 0 0;
  min-height: 3px;
  transition: opacity .15s;
}
.bar:hover { opacity: .75; }
.bar-val {
  font-size: .7rem;
  font-weight: 700;
  color: var(--text-secondary);
}
.bar-label {
  font-size: .62rem;
  color: var(--text-muted);
  margin-top: .35rem;
  text-align: center;
  white-space: nowrap;
}

/* ── Cards grid ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .15s, border-color .15s;
  position: relative;
  cursor: pointer;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.card-rank {
  position: absolute;
  top: 6px; left: 6px;
  background: rgba(0,0,0,.65);
  color: var(--accent);
  font-size: .7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
}

.card-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  background: var(--bg-card-img);
  display: block;
}

.card-body {
  padding: .6rem .7rem .75rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.card-name {
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
  align-items: center;
}

.badge {
  background: var(--border);
  color: #a0a0c0;
  font-size: .65rem;
  padding: 1px 5px;
  border-radius: 4px;
}
.rarity      { background: var(--r-sec-bg);       color: var(--r-sr-fg);       }
.rarity-name { font-size: .65rem; color: var(--text-muted); }
.badge-color { background: var(--badge-color-bg); color: var(--badge-color-fg); }
.badge-type  { background: var(--badge-type-bg);  color: var(--badge-type-fg);  }

.card-id { font-size: .62rem; color: var(--text-faint); }

.card-price {
  font-size: 1rem;
  font-weight: 700;
  margin-top: .1rem;
}
.price-high { color: var(--price-high); }
.price-mid  { color: var(--price-mid);  }
.price-low  { color: var(--price-low);  }

.price-delta {
  font-size: .68rem;
  font-weight: 600;
  margin-top: .1rem;
}
.delta-up   { color: var(--color-up);   }
.delta-down { color: var(--color-down); }
.delta-flat { color: var(--color-flat); }

.rank-delta {
  font-size: .62rem;
  font-weight: 600;
}
.rank-up   { color: var(--color-rank-up); }
.rank-down { color: var(--color-flat);    }
.rank-new  { color: var(--color-new);     }

.total-delta {
  font-size: .72rem;
  font-weight: 600;
  white-space: nowrap;
}
.total-delta-up   { color: var(--color-up);   }
.total-delta-down { color: var(--color-down); }
.nav-total-delta  { font-size: .68rem; font-weight: 600; }

.last-scan {
  margin: .6rem 1.2rem 0;
  padding-top: .6rem;
  border-top: 1px solid var(--border);
  font-size: .72rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Site header (mobile only) ── */
.site-header {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 52px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  z-index: 200;
  align-items: center;
  padding: 0 1rem;
  gap: .75rem;
}
.site-header-logo {
  height: 28px;
  flex: 1;
  object-fit: contain;
  object-position: left center;
}

/* ── Hamburger button ── */
.hamburger {
  background: none;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: .4rem .5rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

/* ── Sidebar backdrop (mobile) ── */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--sidebar-scrim);
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
}

@media (max-width: 800px) {
  .site-header { display: flex; }
  .sidebar {
    transform: translateX(-100%);
    transition: transform .25s ease;
    top: 52px;
    height: calc(100vh - 52px);
  }
  .sidebar-logo { display: none; }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; padding: 4rem 1rem 1rem; }
  .sidebar-backdrop { display: block; }
  .sidebar-backdrop.open { opacity: 1; pointer-events: all; }
  .set-section { scroll-margin-top: 52px; }
  .set-header { top: 52px; }
}

/* ── Card overlay ── */
.overlay-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--overlay-scrim);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.overlay-backdrop.open { display: flex; }
.overlay {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  max-width: 780px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem;
  position: relative;
}
.overlay-img-col {
  flex: 0 0 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.overlay-img {
  width: 300px;
  border-radius: 10px;
  display: block;
}
.overlay-price {
  font-size: 1.4rem;
  font-weight: 700;
}
.overlay-info-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .8rem;
  min-width: 0;
}
.overlay-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.3;
}
.overlay-badges {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}
.overlay-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: .5rem;
}
.overlay-stat {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: .4rem .7rem;
  display: flex;
  flex-direction: column;
  gap: .1rem;
}
.overlay-stat-label {
  font-size: .6rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.overlay-stat-value {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-primary);
}
.overlay-desc {
  font-size: .8rem;
  color: #b0b0c8;
  line-height: 1.6;
  border-top: 1px solid var(--border);
  padding-top: .7rem;
}
.overlay-close {
  position: absolute;
  top: .8rem;
  right: .9rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 4px;
}
.overlay-close:hover { color: var(--text-primary); background: var(--border); }
@media (max-width: 560px) {
  .overlay { flex-direction: column; }
  .overlay-img-col { flex: none; align-self: center; }
}

/* ── Breakeven panel ── */
.breakeven-details { margin-top: .5rem; }
.box-price-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .85rem;
  color: var(--text-secondary);
  padding-bottom: .6rem;
  border-bottom: 1px solid var(--border);
}
.box-price-row label { color: var(--accent); font-weight: 600; }
.box-price-input {
  background: var(--bg-base);
  border: 1px solid var(--border-input);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: .9rem;
  padding: .3rem .6rem;
  width: 100px;
  outline: none;
}
.box-price-input:focus { border-color: var(--accent); }
.breakeven-panel {
  padding: 1.2rem;
  background: var(--bg-surface);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.be-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .6rem;
}
.be-stat {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .5rem .8rem;
  display: flex;
  flex-direction: column;
  gap: .15rem;
}
.be-label { font-size: .65rem; color: var(--text-muted); }
.be-value { font-size: .95rem; font-weight: 700; color: var(--text-secondary); }
.be-ev    { color: var(--accent); }

.be-result-row {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}
.be-result-box {
  flex: 1;
  min-width: 120px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .6rem 1rem;
  display: flex;
  flex-direction: column;
  gap: .2rem;
  text-align: center;
}
.be-result-label { font-size: .65rem; color: var(--text-muted); }
.be-result-value { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); }
.be-ev-display   { color: var(--accent); }
.be-profit  { border-color: var(--color-profit) !important; }
.be-profit .be-result-value { color: var(--color-profit); }
.be-loss    { border-color: var(--color-loss) !important; }
.be-loss .be-result-value   { color: var(--color-loss); }

.be-hit-title { font-size: .7rem; color: var(--text-muted); margin-bottom: .4rem; }
.be-hit-cards { display: flex; flex-wrap: wrap; gap: .35rem; }
.be-hit-chip {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  border-radius: 5px;
  font-size: .68rem;
  padding: 2px 7px;
  color: var(--text-secondary);
  background: var(--border);
}
.be-hit-type {
  font-style: normal;
  font-size: .58rem;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 3px;
  background: #3a3a50;
  color: var(--accent-dim);
}
.be-hit-price { color: var(--accent); font-style: normal; }
.be-type-sp      { background: var(--hit-sp-bg); }
.be-type-sp      .be-hit-type { background: var(--hit-sp-type-bg);  color: var(--hit-sp-type-fg);  }
.be-type-sec     { background: var(--hit-sec-bg); }
.be-type-sec     .be-hit-type { background: var(--hit-sec-type-bg); color: var(--hit-sec-type-fg); }
.be-type-alt-art { background: var(--hit-alt-bg); }
.be-type-alt-art .be-hit-type { background: var(--hit-alt-type-bg); color: var(--hit-alt-type-fg); }
.be-type-manga   { background: var(--hit-manga-bg); border: 1px solid var(--hit-manga-bd); }
.be-type-manga   .be-hit-type { background: var(--hit-manga-type-bg); color: var(--hit-manga-type-fg); }

/* ── Overlay price history chart ── */
.ov-chart-wrap {
  margin-top: .6rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  min-height: 60px;
  position: relative;
}
.ov-chart-wrap.ov-chart-error::after {
  content: "Price history unavailable";
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  inset: 0;
  font-size: .75rem;
  color: var(--text-faint);
}
.ov-chart-canvas {
  display: block;
  width: 100%;
  background: var(--bg-raised);
}
.ov-chart-footer {
  background: var(--bg-raised);
  font-size: .65rem;
  color: var(--text-muted);
  text-align: center;
  padding: .3rem 0 .4rem;
  border-top: 1px solid var(--border);
}