/**
 * Ads Category Slider - Image-Based Center-Mode Navigation
 * 
 * Based on the example pattern with background images and flex-basis expansion.
 * Scoped under .ads-category-slider wrapper to prevent conflicts.
 * RTL-compatible, accessible, performant.
 */

/* ========================================
   CSS VARIABLES
   ======================================== */

.ads-category-slider {
  --gap: 1rem;
  --speed: 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --closed: 4.4rem;
  --open: 19.2rem;
  --accent: #00A693;
}

/* ========================================
   ROOT CONTAINER
   ======================================== */

.ads-category-slider {
  position: relative;
  width: 100%;
  margin: 2rem 0;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 1rem;
}

/* ========================================
   CONTROLS (Navigation Buttons)
   ======================================== */

.ads-slider-controls {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  justify-content: flex-end;
  padding: 0 0 1rem 0;
}

.ads-category-slider .ads-nav-btn {
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: 0.3s;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.ads-category-slider .ads-nav-btn:hover:not(:disabled) {
  background: var(--accent, #00A693);
  transform: scale(1.1);
}

.ads-category-slider .ads-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.ads-category-slider .ads-nav-btn:focus-visible {
  outline: 3px solid var(--accent, #00A693);
  outline-offset: 2px;
}

/* RTL: Flip button positions */
[dir="rtl"] .ads-slider-controls {
  flex-direction: row-reverse;
}

/* ========================================
   SLIDER WRAPPER & TRACK
   ======================================== */

.ads-slider-wrapper {
  overflow: hidden;
  position: relative;
}

.ads-category-slider .ads-slider-track {
  display: flex;
  gap: var(--gap);
  align-items: flex-start;
  justify-content: center;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  padding: 2rem 0 3rem;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE and Edge */
}

.ads-category-slider .ads-slider-track::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

/* ========================================
   PROJECT CARDS
   ======================================== */

.ads-category-slider .ads-project-card {
  position: relative;
  flex: 0 0 var(--closed);
  height: 16.8rem;
  border-radius: 1rem;
  overflow: hidden;
  cursor: pointer;
  transition: flex-basis var(--speed), transform var(--speed);
  scroll-snap-align: center;
  text-decoration: none;
  color: inherit;
}

/* Active/Center Card - Expanded */
.ads-category-slider .ads-project-card[active] {
  flex-basis: var(--open);
  transform: translateY(-6px);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.45);
  z-index: 10;
}

/* ========================================
   BACKGROUND IMAGE
   ======================================== */

.ads-category-slider .ads-project-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.75) saturate(75%);
  transition: filter 0.3s, transform var(--speed);
}

.ads-category-slider .ads-project-card:hover .ads-project-card__bg {
  filter: brightness(0.9) saturate(100%);
  transform: scale(1.06);
}

.ads-category-slider .ads-project-card[active] .ads-project-card__bg {
  filter: brightness(0.85) saturate(85%);
}

/* ========================================
   CARD CONTENT
   ======================================== */

.ads-category-slider .ads-project-card__content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.7rem;
  padding: 0;
  background: linear-gradient(transparent 40%, rgba(0, 0, 0, 0.85) 100%);
  z-index: 2;
}

/* Collapsed state: Vertical text */
.ads-category-slider .ads-project-card__title {
  color: #fff;
  font-weight: 700;
  font-size: 1.35rem;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  text-align: center;
  margin: 0;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
  white-space: nowrap;
  display: block;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(180deg);
  z-index: 3;
  width: auto;
  height: auto;
}

/* Hide description, button in collapsed state */
.ads-category-slider .ads-project-card__desc,
.ads-category-slider .ads-project-card__meta {
  display: none;
}

/* Hide button only in closed cards (not active) */
.ads-category-slider .ads-project-card:not([active]) .ads-project-card__btn {
  display: none !important;
  visibility: hidden;
}

/* Active state: Horizontal layout with all content */
.ads-category-slider .ads-project-card[active] .ads-project-card__content {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 2rem;
  gap: 1rem;
  background: linear-gradient(transparent 20%, rgba(0, 0, 0, 0.9) 100%);
  overflow: visible;
}

.ads-category-slider .ads-project-card[active] .ads-project-card__title {
  writing-mode: horizontal-tb;
  transform: none;
  font-size: 1.44rem;
  margin-bottom: 0.5rem;
  position: static;
  left: auto;
  top: auto;
  width: 100%;
  max-width: 100%;
  height: auto;
  min-height: auto;
  line-height: 1.4;
  word-wrap: break-word;
  overflow-wrap: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  hyphens: auto;
  white-space: normal;
  max-height: 4em;
}

.ads-category-slider .ads-project-card[active] .ads-project-card__desc,
.ads-category-slider .ads-project-card[active] .ads-project-card__btn,
.ads-category-slider .ads-project-card[active] .ads-project-card__meta {
  display: block;
}

.ads-category-slider .ads-project-card__info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
  width: 100%;
  max-width: 100%;
  overflow: visible;
}

.ads-category-slider .ads-project-card__desc {
  color: #ddd;
  font-size: 1rem;
  line-height: 1.4;
  max-width: 16rem;
  margin: 0;
}

.ads-category-slider .ads-project-card__meta {
  color: #bbb;
  font-size: 0.9rem;
  margin: 0.25rem 0;
}

.ads-category-slider .ads-project-card__count {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  font-weight: 600;
}

.ads-category-slider .ads-project-card__btn {
  padding: 0.55rem 1.3rem;
  border: none;
  border-radius: 9999px;
  background: #FFA500;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  transition: background 0.3s;
  margin-top: 0.5rem;
}

.ads-category-slider .ads-project-card__btn:hover {
  background: #ff8c00;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 165, 0, 0.4);
}

/* ========================================
   DOTS INDICATOR
   ======================================== */

.ads-category-slider .ads-slider-dots {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  padding: 20px 0;
}

.ads-category-slider .ads-slider-dot {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.25);
  cursor: pointer;
  transition: 0.3s;
  border: none;
  padding: 0;
}

.ads-category-slider .ads-slider-dot.active {
  background: var(--accent, #00A693);
  transform: scale(1.2);
}

.ads-category-slider .ads-slider-dot:hover {
  background: rgba(0, 0, 0, 0.4);
}

/* ========================================
   FOCUS STATES
   ======================================== */

.ads-category-slider .ads-project-card:focus-visible {
  outline: 3px solid var(--accent, #00A693);
  outline-offset: 4px;
  border-radius: 1rem;
}

/* ========================================
   REDUCED MOTION
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  .ads-category-slider * {
    animation: none !important;
    transition: none !important;
  }
  
  .ads-category-slider .ads-slider-track {
    scroll-behavior: auto;
  }
}

/* ========================================
   RESPONSIVE: TABLET (768px - 991px)
   ======================================== */

@media (min-width: 768px) and (max-width: 991px) {
  .ads-category-slider {
    --closed: 4rem;
    --open: 16.8rem;
  }
  
  .ads-category-slider .ads-project-card {
    height: 15.2rem;
  }
  
}

/* ========================================
   RESPONSIVE: MOBILE (<768px)
   ======================================== */

@media (max-width: 767px) {
  .ads-category-slider {
    --closed: 100%;
    --open: 100%;
    --gap: 0.8rem;
    padding: 0 15px;
  }

  .ads-category-slider {
    margin: 1.5rem 0;
  }

  .ads-slider-controls {
    width: 100%;
    justify-content: space-between;
    padding: 0 0 15px 0;
  }

  .ads-category-slider .ads-nav-btn {
    width: 2rem;
    height: 2rem;
    font-size: 1.2rem;
  }

  .ads-category-slider .ads-slider-track {
    flex-direction: column;
    scroll-snap-type: y mandatory;
    gap: 0.8rem;
    padding-bottom: 20px;
  }

  .ads-category-slider .ads-project-card {
    height: auto;
    min-height: 80px;
    flex: 0 0 auto;
    width: 100%;
    scroll-snap-align: start;
  }

  .ads-category-slider .ads-project-card[active] {
    min-height: 300px;
    transform: none;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  }

  .ads-category-slider .ads-project-card__content {
    flex-direction: row;
    justify-content: flex-start;
    padding: 1rem;
    align-items: center;
    gap: 1rem;
  }

  .ads-category-slider .ads-project-card__title {
    writing-mode: horizontal-tb;
    transform: none;
    font-size: 1.2rem;
    margin-right: auto;
  }

  /* Center title in closed cards on mobile */
  .ads-category-slider .ads-project-card:not([active]) .ads-project-card__title {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin-right: 0;
    width: auto;
    text-align: center;
  }

  .ads-category-slider .ads-project-card__desc,
  .ads-category-slider .ads-project-card__btn,
  .ads-category-slider .ads-project-card__meta {
    display: none;
  }

  .ads-category-slider .ads-project-card[active] .ads-project-card__content {
    align-items: flex-start;
    padding: 1.5rem;
    flex-direction: column;
  }

  .ads-category-slider .ads-project-card[active] .ads-project-card__title {
    font-size: 1.08rem;
    margin-bottom: 1rem;
    margin-top: 0;
    width: 100%;
    line-height: 1.3;
    word-wrap: break-word;
    overflow-wrap: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .ads-category-slider .ads-project-card[active] .ads-project-card__desc {
    font-size: 0.95rem;
    max-width: 100%;
    margin-bottom: 0.5rem;
  }

  .ads-category-slider .ads-project-card[active] .ads-project-card__meta {
    display: block;
    margin-bottom: 0.5rem;
  }

  .ads-category-slider .ads-project-card[active] .ads-project-card__btn {
    align-self: center;
    width: 100%;
    text-align: center;
    padding: 0.7rem;
  }

  .ads-category-slider .ads-slider-dots {
    display: none;
  }
}

/* ========================================
   RTL ADJUSTMENTS
   ======================================== */

[dir="rtl"] .ads-category-slider .ads-project-card[active] .ads-project-card__content {
  /* RTL: Content flows right-to-left */
  flex-direction: row-reverse;
}

/* ========================================
   FALLBACK: NO-JS GRID LAYOUT
   ======================================== */

.ads-category-slider:not(.js-enabled) .ads-slider-track {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  overflow: visible;
  scroll-snap-type: none;
  padding: 1rem 0;
}

.ads-category-slider:not(.js-enabled) .ads-project-card {
  flex: 0 0 auto;
  width: 100%;
  height: 300px;
}

.ads-category-slider:not(.js-enabled) .ads-project-card__content {
  flex-direction: row;
  padding: 1.5rem;
}

.ads-category-slider:not(.js-enabled) .ads-project-card__title {
  writing-mode: horizontal-tb;
  transform: none;
  font-size: 1.5rem;
}

.ads-category-slider:not(.js-enabled) .ads-project-card__desc,
.ads-category-slider:not(.js-enabled) .ads-project-card__btn,
.ads-category-slider:not(.js-enabled) .ads-project-card__meta {
  display: block;
}