/* ============================================
   TadLoop — Pure JavaScript Marquee/Carousel
   WCAG 2 AA compliant styles  (v 1.1.0)
   ============================================ */

/* ─── Container ─────────────────────────────── */

.tad-loop {
  border-bottom: 1px solid #eee;
  overflow: hidden;
  position: relative;   /* anchor for absolutely-positioned control bars */
}

/* ─── Item wrapper ───────────────────────────── */

.tad-loop .item-wrap {
  transform: translateX(0px);
  width: max-content;
  position: relative;
  white-space: nowrap;
  display: flex;
  will-change: transform;
}

/* ─── Individual item ────────────────────────── */

.tad-loop .item {
  background: #d3d0d0;
  border-right: 1px solid #eee;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
  min-width: 200px;
}

.tad-loop .item a {
  text-decoration: none;
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  /* SC 1.4.3: #fff on #d3d0d0 is ~1.5:1 — use dark text for AA compliance */
  color: #1a1a1a;
  font-weight: bold;
  line-height: 1.4;
  height: 100%;
  padding: 10px 20px;
  white-space: nowrap;
}

.tad-loop .item.active {
  background: #c0392b;
}

.tad-loop .item.active a {
  /* #fff on #c0392b = 4.6:1 — passes AA (SC 1.4.3) */
  color: #fff;
}

/* ─── Control bars ───────────────────────────────────────────────────────────
   SC 2.4.3 Focus Order:
     DOM order  =  .tadloop-controls--top  →  .item-wrap  →  .tadloop-controls--bottom
     Tab order  =  toggle button           →  item links  →  ◀ prev  →  next ▶

   Both bars use position:absolute so they overlay the scrolling items without
   adding extra height to the component, and without disrupting the DOM order
   that drives the correct tab sequence.
   ─────────────────────────────────────────────────────────────────────────── */

/* Shared bar base — set by JS via inline style; class provided for overrides */
.tadloop-controls {
  /* intentionally minimal — JS positions each bar */
}

/* TOP bar: houses the pause/play toggle (always first in DOM) */
.tadloop-controls--top {
  position: absolute;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  padding: 6px 8px;
  gap: 4px;
  /* Default right-aligned; JS sets left/right based on controlPosition option */
  right: 0;
}

/* BOTTOM bar: houses ◀ Prev and Next ▶ (always last in DOM) */
.tadloop-controls--bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  padding: 6px 8px;
  /* pointer-events:none lets the bar itself pass through clicks to items;
     individual buttons restore pointer-events */
  pointer-events: none;
}

.tadloop-controls--bottom .tadloop-btn {
  pointer-events: all;
}

/* ─── Buttons (shared) ───────────────────────── */

.tadloop-btn {
  /* SC 1.4.3: color #1a1a1a on rgba(255,255,255,0.82) ≈ 16:1 — passes AAA */
  background-color: rgba(255, 255, 255, 0.82);
  color: #1a1a1a;
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.22);
  transition: background-color 0.2s ease;
  font-size: 0.875rem;
  line-height: 1;
}

.tadloop-btn:hover {
  background-color: rgba(255, 255, 255, 0.97);
}

.tadloop-btn:active {
  transform: scale(0.94);
}

/* SC 2.4.7 Focus Visible — clear, high-contrast focus ring on all buttons */
.tadloop-btn:focus-visible {
  outline: 3px solid #005fcc;   /* #005fcc on white = 7.6:1 — passes AAA */
  outline-offset: 3px;
  background-color: rgba(255, 255, 255, 0.97);
}

/* Fallback for browsers that don't support :focus-visible */
.tadloop-btn:focus:not(:focus-visible) {
  outline: none;
}

/* ─── Item links: focus indicator (SC 2.4.7) ──── */

.tad-loop .item a:focus-visible {
  /* Visible focus ring that contrasts with both light and dark item backgrounds */
  outline: 3px solid #005fcc;
  outline-offset: -3px;
  border-radius: 2px;
}

.tad-loop .item a:focus:not(:focus-visible) {
  outline: none;
}

/* ─── Reduced Motion (SC 2.3.3 / 1.4.3) ──────── */

@media (prefers-reduced-motion: reduce) {
  .tad-loop .item-wrap {
    animation: none !important;
    transform: none !important;
  }

  .tadloop-btn {
    transition: none;
  }
}

/* ─── High contrast mode support ──────────────── */

@media (forced-colors: active) {
  .tadloop-btn {
    border: 2px solid ButtonText;
    forced-color-adjust: auto;
  }
}