/* ╔═══════════════════════════════════════════════════════════════════
   ║  PRADUMNA_FX — AI Tools Hub & Master Card Styling
   ║  Ultra-Premium Glass Architecture / Scoped to .ai-tools-page
   ║  120Hz-Ready / Zero Global Side-Effects
   ╚═══════════════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════════════
   1. HERO & DIRECTORY CONTROLS
   ═══════════════════════════════════════════════════════ */
.ai-tools-page {
  position: relative;
  overflow-x: clip;
}

.ai-tools-page .ai-hero-sub {
  max-width: 720px;
  margin: 0 auto 28px;
  font-size: 1.05rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.72);
  text-align: center;
}

/* Instant Search Input */
.ai-tools-page .ai-search-wrap {
  position: relative;
  max-width: 580px;
  margin: 0 auto 36px;
  z-index: 10;
}

.ai-tools-page .ai-search-inner {
  position: relative;
  display: flex;
  align-items: center;
  border-radius: 999px;
  background: rgba(18, 22, 36, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.ai-tools-page .ai-search-inner:focus-within {
  border-color: rgba(139, 92, 246, 0.6);
  box-shadow: 0 16px 44px rgba(139, 92, 246, 0.2), 0 0 0 2px rgba(139, 92, 246, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.ai-tools-page .ai-search-icon {
  position: absolute;
  left: 20px;
  color: rgba(255, 255, 255, 0.45);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.ai-tools-page .ai-search-input {
  width: 100%;
  padding: 14px 48px 14px 52px;
  font-family: inherit;
  font-size: 1rem;
  color: #fff;
  background: transparent;
  border: none;
  outline: none;
}

.ai-tools-page .ai-search-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.ai-tools-page .ai-search-clear {
  position: absolute;
  right: 18px;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

.ai-tools-page .ai-search-clear:hover {
  color: #fff;
}

/* ═══════════════════════════════════════════════════════
   2. HORIZONTAL CATEGORY FILTER CHIPS
   ═══════════════════════════════════════════════════════ */
.ai-tools-page .ai-filter-nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  margin: 0 auto 36px;
  padding: 8px 12px 16px;
  max-width: 100%;
  overflow-x: auto;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.ai-tools-page .ai-filter-nav::-webkit-scrollbar {
  display: none;
}

@media (min-width: 1024px) {
  .ai-tools-page .ai-filter-nav {
    justify-content: center;
    flex-wrap: wrap;
  }
}

.ai-tools-page .ai-filter-chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  user-select: none;
}

.ai-tools-page .ai-filter-chip:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-2px);
}

.ai-tools-page .ai-filter-chip.active {
  color: #fff;
  font-weight: 600;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.35) 0%, rgba(59, 130, 246, 0.25) 100%);
  border-color: rgba(167, 139, 250, 0.6);
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transform: scale(1.03);
}

.ai-tools-page .ai-filter-count {
  font-size: 0.75rem;
  opacity: 0.65;
  padding: 1px 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
}

/* ═══════════════════════════════════════════════════════
   3. MASTER AI TOOL CARD GRID
   ═══════════════════════════════════════════════════════ */
.ai-tools-page .ai-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
  align-items: stretch;
  margin-bottom: 50px;
}

@media (max-width: 480px) {
  .ai-tools-page .ai-tools-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* Card Shell */
.ai-tools-page .ai-tool-card {
  width: 100%;
  position: relative;
  display: flex;
  flex-direction: column;
  background: linear-gradient(175deg, rgba(18, 22, 34, 0.82) 0%, rgba(10, 12, 20, 0.9) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 26px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  isolation: isolate;
  transform: translate3d(0, 0, 0);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.35s ease, border-color 0.35s ease;
}

.ai-tools-page .ai-tool-card:hover {
  transform: translateY(-7px);
  border-color: rgba(147, 197, 253, 0.35);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55), 0 0 24px rgba(59, 130, 246, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* Below the fold viewport containment */
.ai-tools-page .ai-tool-card:nth-child(n+10) {
  content-visibility: auto;
  contain-intrinsic-size: 0 460px;
}

/* Card Preview Area */
.ai-tools-page .ai-card__preview {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 200px;
  background: #080a12;
  overflow: hidden;
  isolation: isolate;
}

.ai-tools-page .ai-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), filter 0.4s ease;
}

.ai-tools-page .ai-tool-card:hover .ai-card__img {
  transform: scale(1.05);
}

/* Preview Lighting Sheen */
.ai-tools-page .ai-card__reflection {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, transparent 40%, rgba(0, 0, 0, 0.4) 100%);
  z-index: 2;
}

/* Pricing Badges */
.ai-tools-page .ai-card__badge-pricing {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(10, 14, 26, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.ai-tools-page .ai-card__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

/* Badge Variants */
.ai-tools-page .ai-card__badge-pricing--free {
  color: #34d399;
  border-color: rgba(52, 211, 153, 0.35);
}
.ai-tools-page .ai-card__badge-pricing--free .ai-card__badge-dot {
  background: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.8);
}

.ai-tools-page .ai-card__badge-pricing--freemium {
  color: #60a5fa;
  border-color: rgba(96, 165, 250, 0.35);
}
.ai-tools-page .ai-card__badge-pricing--freemium .ai-card__badge-dot {
  background: #3b82f6;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.8);
}

.ai-tools-page .ai-card__badge-pricing--free-trial {
  color: #fbbf24;
  border-color: rgba(251, 191, 36, 0.35);
}
.ai-tools-page .ai-card__badge-pricing--free-trial .ai-card__badge-dot {
  background: #f59e0b;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.8);
}

.ai-tools-page .ai-card__badge-pricing--paid {
  color: #c084fc;
  border-color: rgba(192, 132, 252, 0.35);
}
.ai-tools-page .ai-card__badge-pricing--paid .ai-card__badge-dot {
  background: #a855f7;
  box-shadow: 0 0 8px rgba(168, 85, 247, 0.8);
}

/* Card Body Content */
.ai-tools-page .ai-card__content {
  padding: 22px 24px 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.ai-tools-page .ai-card__title {
  margin: 0 0 8px;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.25;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.ai-tools-page .ai-card__desc {
  margin: 0 0 20px;
  font-size: 0.92rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.65);
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Card Footer with Tags & CTA */
.ai-tools-page .ai-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.ai-tools-page .ai-card__tags {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.ai-tools-page .ai-card__tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 6px;
  font-size: 0.76rem;
  font-weight: 500;
  line-height: 1.3;
}

.ai-tools-page .ai-card__tag--cat {
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ai-tools-page .ai-card__tag--ai {
  color: #93c5fd;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

/* Visit Tool CTA Button */
.ai-tools-page .ai-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 15px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
  color: #ffffff;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.04) 100%);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.ai-tools-page .ai-card__cta:hover {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.5) 0%, rgba(59, 130, 246, 0.4) 100%);
  border-color: rgba(192, 132, 252, 0.6);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  color: #ffffff;
  transform: translateY(-1px);
}

.ai-tools-page .ai-card__cta-arrow {
  transition: transform 0.25s ease;
}

.ai-tools-page .ai-card__cta:hover .ai-card__cta-arrow {
  transform: translate(2px, -2px);
}

/* Empty State / No Results */
.ai-tools-page .ai-no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: rgba(255, 255, 255, 0.6);
  display: none;
}

.ai-tools-page .ai-no-results.show {
  display: block;
}

.ai-tools-page .ai-no-results h3 {
  font-size: 1.4rem;
  color: #fff;
  margin-bottom: 8px;
}

.ai-tools-page .ai-no-results p {
  font-size: 0.95rem;
}