/* ============================================
   KARUZELA PARTNERÓW - INFINITE SCROLL
   Gotowy kod do wklejenia
   ============================================ */

.partner-carousel {
  /* --- KONFIGURACJA --- */
  --logo-width: 150px;        /* szerokość logo */
  --logo-height: 80px;        /* wysokość logo */
  --gap: 40px;                /* odstęp między logo */
  --speed: 20s;               /* czas pętli (więcej = wolniej) */
  --fade-start: 10%;          /* punkt rozpoczęcia fade (0-100%) */
  /* -------------------- */
  
  width: 100%;
  max-width: 1200px;
  margin: 30px auto;
  overflow: hidden;
  position: relative;
  
  /* Efekt fade na krawędziach (gradient zanikający) */
  mask: linear-gradient(90deg, 
    #0000 0%, 
    #000 var(--fade-start), 
    #000 calc(100% - var(--fade-start)), 
    #0000 100%);
  -webkit-mask: linear-gradient(90deg, 
    #0000 0%, 
    #000 var(--fade-start), 
    #000 calc(100% - var(--fade-start)), 
    #0000 100%);
}

.carousel-logos {
  display: flex;
  gap: var(--gap);
  animation: scroll var(--speed) linear infinite;
  width: max-content;
}

.carousel-logos img {
  width: var(--logo-width);
  height: var(--logo-height);
  object-fit: contain;
  flex-shrink: 0;
  filter: grayscale(0%) opacity(1);
  transition: filter 0.3s ease;
}

/* Przytłumienie na krawędziach (dodatkowy efekt) */
.carousel-logos img:first-child,
.carousel-logos img:last-child {
  filter: grayscale(50%) opacity(0.6);
}

/* Pauza animacji na hover */
.partner-carousel:hover .carousel-logos {
  animation-play-state: paused;
}

.carousel-logos img:hover {
  filter: grayscale(0%) opacity(1) brightness(1.1);
}

/* ============================================
   RESPONSYWNOŚĆ - MOBILE
   ============================================ */

@media (max-width: 768px) {
  .partner-carousel {
    --logo-width: 100px;
    --logo-height: 60px;
    --gap: 25px;
    --speed: 15s;
    --fade-start: 5%;
  }
}

@media (max-width: 480px) {
  .partner-carousel {
    --logo-width: 80px;
    --logo-height: 50px;
    --gap: 20px;
    --speed: 12s;
  }
}

/* ============================================
   ALTERNATYWNA WERSJA: Z BLUR EFEKTEM
   (bardziej nowoczesna, jak na vaticanjp2.va)
   ============================================ */

.partner-carousel-blur {
  --blur: 6px;
  --speed: 25s;
  height: 120px;
  max-width: 1200px;
  margin: 60px auto;
  position: relative;
  overflow: hidden;
}

.partner-carousel-blur .mask {
  position: absolute;
  inset: 0;
  background: #fff; /* kolor tła pod blur - dopasuj do swojej strony */
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  mask: linear-gradient(90deg, 
    #000 50px, 
    #0000 175px calc(100% - 175px), 
    #000 calc(100% - 50px));
  -webkit-mask: linear-gradient(90deg, 
    #000 50px, 
    #0000 175px calc(100% - 175px), 
    #000 calc(100% - 50px));
  pointer-events: none;
}

.partner-carousel-blur .carousel-logos {
  display: flex;
  gap: 50px;
  animation: moveBg var(--speed) linear infinite;
  position: absolute;
  inset: 0;
  padding: 20px 0;
}

.partner-carousel-blur .carousel-logos img {
  width: 150px;
  height: 80px;
  object-fit: contain;
  flex-shrink: 0;
}

.partner-carousel-blur:hover .carousel-logos {
  animation-play-state: paused;
}

@keyframes moveBg {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============================================
   ANIMACJA SCROLL - KLUCZOWA
   ============================================ */

@keyframes scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(calc(-50%));
  }
}