/* StalLIFT Flipbook (minimal, framework-agnostic) */
:root{
  --fb-bg: rgba(0,0,0,.55);
  --fb-surface: #fff;
  --fb-text: #111;
  --fb-muted: #6b7280;
  --fb-border: rgba(17,17,17,.12);
  --fb-radius: 14px;
  --fb-shadow: 0 16px 60px rgba(0,0,0,.25);
  --fb-btn-bg: rgba(17,17,17,.06);
  --fb-btn-bg-hover: rgba(17,17,17,.10);
}

@media (prefers-color-scheme: dark){
  :root{
    --fb-surface: #0b0f19;
    --fb-text: #e7eaf0;
    --fb-muted: #9aa4b2;
    --fb-border: rgba(231,234,240,.14);
    --fb-btn-bg: rgba(231,234,240,.08);
    --fb-btn-bg-hover: rgba(231,234,240,.14);
  }
}

.fb-preview{
  display: grid;
  gap: 12px;
}

.fb-preview__row{
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

@media (max-width: 900px){
  .fb-preview__row{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 520px){
  .fb-preview__row{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.fb-thumb{
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--fb-border);
  background: var(--fb-btn-bg);
  cursor: pointer;
  transition: transform .12s ease, background .12s ease;
}
.fb-thumb:hover{ transform: translateY(-1px); background: var(--fb-btn-bg-hover); }
.fb-thumb img{ width: 100%; height: auto; display: block; }

.fb-cta{
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

.fb-btn{
  appearance: none;
  border: 1px solid var(--fb-border);
  background: var(--fb-btn-bg);
  color: var(--fb-text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  font: inherit;
  transition: background .12s ease, transform .12s ease;
}
.fb-btn:hover{ background: var(--fb-btn-bg-hover); }
.fb-btn:active{ transform: translateY(1px); }

.fb-modal{
  position: fixed;
  inset: 0;
  display: none;
  background: var(--fb-bg);
  z-index: 9999;
}
.fb-modal[aria-hidden="false"]{ display: grid; place-items: center; }

.fb-panel{
  width: min(1100px, calc(100vw - 28px));
  height: min(86vh, 820px);
  background: var(--fb-surface);
  color: var(--fb-text);
  border: 1px solid var(--fb-border);
  border-radius: var(--fb-radius);
  box-shadow: var(--fb-shadow);
  overflow: hidden;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.fb-topbar{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--fb-border);
  gap: 10px;
}

.fb-title{
  font-weight: 650;
  letter-spacing: .2px;
}

.fb-tools{
  display: flex;
  align-items: center;
  gap: 10px;
}

.fb-select{
  border: 1px solid var(--fb-border);
  background: transparent;
  color: var(--fb-text);
  border-radius: 10px;
  padding: 8px 10px;
}

.fb-stage{
  display: grid;
  place-items: center;
  padding: 12px;
  overflow: auto;
}

.fb-stage img{
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--fb-border);
  background: var(--fb-btn-bg);
}

.fb-bottombar{
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 10px 14px;
  border-top: 1px solid var(--fb-border);
  gap: 10px;
}

.fb-nav{
  display: flex;
  gap: 10px;
  align-items: center;
}

.fb-counter{
  justify-self: center;
  color: var(--fb-muted);
  font-size: 14px;
}

.fb-hint{
  justify-self: end;
  color: var(--fb-muted);
  font-size: 12px;
}

.fb-hidden{ display:none !important; }