body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

.hero-section {
    height: 80vh;
    background-color: var(--main-bg);
    position: relative;
    overflow: hidden;
    color: var(--accent-color);
    z-index: 1;
  }
  
  #particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 0;
  }

  
  .hero-section .container {
    z-index: 1;
  }
  
  @media (max-width: 768px) {
    .hero-section h1 {
      font-size: 2rem;
    }
    .hero-section p {
      font-size: 1rem;
    }
  } 

  .navbar .nav-link {
    position: relative;
    color: var(--accent-color);
    transition: color 0.3s ease;
  }
  
  .navbar .nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 0%;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
  }
  
  .navbar .nav-link:hover {
    color: #ffffff;
  }
  
  .navbar .nav-link:hover::after {
    width: 100%;
  }

  .about-section {
    max-width: 850px;
    margin: 0 auto;
    text-align: center;
    padding: 60px 20px;
    background-color: transparent;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    border-radius: 12px;
    color: #222;
  }
  
  .about-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(248, 233, 229, 0.15);
  }
  
  
  
  .section-divider {
    width: 60px;
    height: 3px;
    background-color: var(--accent-color, #eeded9);
    margin: 10px auto 30px;
    border-radius: 10px;
    transition: transform 0.4s ease;
  }
  
  .about-section:hover .section-divider {
    transform: scaleX(5);
  }

  .about-wrapper {
    width: 100%;
    padding: 60px 0;
    transition: background 0.3s ease;
  }
  
  .about-wrapper:hover .about-section {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
  }
  
  .about-section {
    max-width: 850px;
    margin: 0 auto;
    text-align: center;
    padding: 60px 20px;
    border-radius: 12px;
    background-color: transparent;
    color: #111;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .section-title {
    position: relative;
    display: block;
    text-align: center;
    margin: 0 auto;
    z-index: 3;
  }
  

  
  .section-separator {
    line-height: 0;
    margin-bottom: -1px;
  }
  
  .news-section {
    position: relative;
    background-color: #0b0c2a; /* kolor bazowy */
    background-image: 
      radial-gradient(circle at 1px 1px, rgba(255,255,255,0.05) 1px, transparent 0),
      url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23ffffff0d' stroke-width='0.5'%3E%3Cpath d='M0 0 L100 0 L100 100 L0 100 Z'/%3E%3Cpath d='M0 20 L100 20 M0 40 L100 40 M0 60 L100 60 M0 80 L100 80'/%3E%3Cpath d='M20 0 L20 100 M40 0 L40 100 M60 0 L60 100 M80 0 L80 100'/%3E%3C/g%3E%3C/svg%3E");
    background-size: 100px 100px;
    background-repeat: repeat;
    padding: 80px 0;
    color: white;
    z-index: 1;
  }

  .news-section::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 100%;
    height: 80px;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.05) 0%, transparent 80%);
    z-index: 0;
  }

  .section-separator {
    position: relative;
    z-index: 2;
  }
  
  .news-section .section-title {
    background-color: #0b0c2a;
  }
  
  
.news-section .container {
  position: relative;
  z-index: 2;
  
}
.news-card-body {
  padding: 1.5rem 1.5rem;
}


.news-section .container {
  max-width: 1300px;
  margin: 0 auto;
}


  #news-carousel {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  #news-carousel {
    gap: 2.5rem;
    margin-top: 2rem;
  }

  #news-carousel {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
  }
  
  .news-card-wrapper {
    flex: 0 1 360px;
    display: flex;
  }
  
  .news-card {
    background-color: #fff;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
    display: flex;
    flex-direction: column;
  }
  
  .news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 28px rgba(0, 0, 0, 0.08);
  }
  
  .news-card img {
    width: 100%;
    height: 260px;
    object-fit: contain;
    background-color: #fcfbfb;
    display: block;
    border-top-left-radius: 16px;
    border-top-right-radius: 16px;
  }
  
  .news-card-body {
    padding: 1rem 1.25rem;
    background-color: #f3f0f0;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  
  .news-card-title {
    font-weight: 600;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #000;
  }
  
  .news-card-text {
    font-size: 0.95rem;
    color: #333;
    margin-bottom: 1rem;
  }
  
  .news-card .btn {
    border-radius: 10px;
    font-weight: 500;
    padding: 0.45rem 1rem;
  }

  /* Karuzela w sekcji aktualności */
  .news-section .carousel-control-prev,
  .news-section .carousel-control-next {
    width: 48px;
    opacity: 0.9;
  }

  .news-section .carousel-indicators {
    position: static; /* przenosi kropki pod karuzelę */
    margin-top: 1rem;
  }

  .news-section .carousel-indicators [data-bs-target] {
    background-color: #fff;
    width: 8px;
    height: 8px;
    border-radius: 50%;
  }
  
  

  .group-photo-section {
    padding: 0;
    margin: 0;
    background: transparent;
  }
  
  .group-photo-wrapper {
    max-width: 100%;
    margin: 0 auto;
    box-shadow: none; 
    border-radius: 0;
  }
 
  .group-photo {
    width: 100%;
    max-width: 800px;
    display: block;
    margin: 0 auto;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}
  
  .group-photo:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  }
  
  
  .group-photo-section .container {
    max-width: 100%;
    padding: 0;
    margin: 0;
  }

  .group-photo-wrapper {
    padding: 0 1rem;
}


  .leader-main-photo {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  }
  
  .leader-main-photo:hover {
    transform: scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
  }
  
  
  .leader-card {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    text-align: center;
    position: relative;
  }
  
  .leader-card:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  }
  
  .leader-img {
    width: 50%;
    object-fit: cover;
    border-radius: 16px;
    margin: 0 auto;
    box-shadow: 0 25px 40px rgba(0,0,0,0.08);
    border: 3px solid black;
  }
  
  .leader-description {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, opacity 0.5s ease;
    opacity: 0;
    will-change: max-height, opacity;
  }

  .leader-description.expanded {
    opacity: 1;
  }
  
  
  .leader-card.active .leader-description {
    max-height: 300px;
    opacity: 1;
  }
  
  .expand-icon {
    font-size: 1.2rem;
    color: #555;
    transition: transform 0.3s ease;
  }
  
  .leader-card.active .expand-icon {
    transform: rotate(180deg);
  }
  
  .leaders-intro-description {
    font-size: 1.1rem;
    color: #333;
    margin-top: 20px;
  }

  .member-card {
    background-color: #000424;
    color: white;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
  }
  
  .member-card:hover {
    transform: translateY(-5px);
  }
  .member-img {
      width: 270px;
      height: 350px;
      object-fit: cover;
      border-radius: 16px;
      border: 3px solid white;
    }
  .member-img:hover {
    transform: scale(1.05);
  }

  #projectFullImageModal .modal-content {
    background-color: #000;
    border: none;
  }
  
  #projectFullImageModal .modal-body {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
  }
  
  #projectFullImageModal img {
    max-height: 90vh;
    object-fit: contain;
  }
  
  #projectFullImageModal .carousel-control-prev-icon,
  #projectFullImageModal .carousel-control-next-icon {
    background-color: rgba(0, 0, 0, 0.7);
    padding: 10px;
    border-radius: 50%;
  }

  #fullImageCarouselInner img {
    max-height: 90vh;
    max-width: 100%;
    object-fit: contain;
    display: block;
    margin: 0 auto;
  }
  
  .carousel-inner {
    transition: transform 0.6s ease-in-out;
  }
  
  .carousel-item {
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  

  .accordion-button {
    background-color: #000424;
    color: #f8e9e5;
    font-weight: 600;
    border-radius: 8px !important;
    transition: background-color 0.3s ease, color 0.3s ease;
    box-shadow: none !important;
  }
  
  /* Hover działa tylko wtedy, gdy panel jest zwinięty */
  .accordion-button.collapsed:hover {
    background-color: #0a0a60 !important;
    color: #ffffff !important;
  }
  
  /* Styl aktywnego i rozwiniętego przycisku */
  .accordion-button:not(.collapsed),
  .accordion-button:focus,
  .accordion-button:active {
    background-color: #000424 !important;
    color: #f8e9e5 !important;
    box-shadow: none;
  }
  
  /* Strzałka ▼ */
  .accordion-button::after {
    content: '▼';
    transform: rotate(0deg);
    transition: transform 0.3s ease;
    color: #f8e9e5;
    font-size: 0.9rem;
  }
  
  /* Strzałka ▲ po rozwinięciu */
  .accordion-button:not(.collapsed)::after {
    transform: rotate(180deg);
  }
  
  /* Styl zawartości */
  .accordion-body {
    background-color: #f8f9fa;
    border-radius: 0 0 8px 8px;
  }
  
  /* Zdjęcia w treści */
  .accordion-body img {
    transition: transform 0.3s ease;
  }
  
  .accordion-body img:hover {
    transform: scale(1.03);
  }
  
  .fixed-carousel {
    height: 420px; /* niższy pojemnik */
    overflow: hidden;
    position: relative;
  }
  
 
  .carousel-item {
    height: 100%;
    transition: opacity 0.6s ease-in-out;
  }
  
  .carousel-img {
    max-height: 100%;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    margin: 0 auto;
  }

  .carousel-inner {
    transition: transform 0.6s ease-in-out !important;
  }

  /* Ulepszona, płynna animacja przesuwania slajdów (Bootstrap 5) */
  .carousel.slide .carousel-inner {
    transition: transform 0.6s cubic-bezier(.22,.9,.37,1) !important;
    will-change: transform;
  }

  .carousel.slide .carousel-item {
    transition: transform 0.6s cubic-bezier(.22,.9,.37,1), opacity 0.45s ease;
    will-change: transform, opacity;
    backface-visibility: hidden;
  }

  /* Przygotuj pozycjonowanie dla elementów będących w trakcie przesuwania */
  .carousel.slide .carousel-item-next,
  .carousel.slide .carousel-item-prev {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
  }

  /* Kierunkowe transformacje używane przez Bootstrapa podczas slide */
  .carousel.slide .carousel-item-next { transform: translateX(100%); }
  .carousel.slide .carousel-item-prev { transform: translateX(-100%); }
  .carousel.slide .carousel-item-next.carousel-item-start,
  .carousel.slide .carousel-item-prev.carousel-item-end {
    transform: translateX(0);
  }

  /* Mały efekt cienia dla aktywnego slajdu podczas animacji */
  .carousel.slide .carousel-item.active {
    box-shadow: 0 18px 40px rgba(2,6,23,0.06);
  }

  /* Cross-fade mode: płynne przejście przez nakładanie slajdów (Bootstrap carousel-fade)
     Dzięki temu nie będzie widocznego 'znikania' kart podczas animacji slide. */
  .carousel-fade .carousel-item {
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(.22,.9,.37,1);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: block;
    backface-visibility: hidden;
    transform: none !important; /* wyłącz transformacje slajdu, korzystamy tylko z opacity */
  }

  .carousel-fade .carousel-item.active {
    opacity: 1;
    position: relative;
    z-index: 2;
  }

  /* Elementy wchodzące/wychodzące nie powinny przysłaniać aktywnego slajdu nagle */
  .carousel-fade .carousel-item-next,
  .carousel-fade .carousel-item-prev {
    opacity: 0;
    z-index: 1;
  }

  /* Kiedy Bootstrap oznacza start/koniec animacji — zapewnij właściwe nakładanie */
  .carousel-fade .carousel-item-next.carousel-item-start,
  .carousel-fade .carousel-item-prev.carousel-item-end {
    opacity: 1;
    z-index: 3;
  }
  
  /* Strzałki */
  .carousel-control-prev-icon,
  .carousel-control-next-icon {
    background-color: rgba(0, 0, 0, 0.7);
    background-size: 70% 70%;
    border-radius: 50%;
    padding: 10px;
  }
  
  /* Kropki – przeniesione wyżej */
  .carousel-indicators {
    bottom: -10px; /* bliżej karuzeli */
  }
  
  .carousel-indicators [data-bs-target] {
    background-color: #444;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    opacity: 0.6;
    margin: 0 4px;
  }
  
  .carousel-indicators .active {
    background-color: #000;
    opacity: 1;
  }
  
  
  .event-card {
    width: 100%;
    height: 350px;
    transition: transform 0.3s ease;
    border-radius: 12px;
    overflow: hidden;
    object-position: center;
    box-shadow: 0 6px 12px rgba(0,0,0,0.05);
  }
  .event-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
  }

  #fullImageModal .modal-content {
    background-color: #000;
    border: none;
  }
  
  #fullImageModal .modal-body {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
  }
  
  #fullImageModal img {
    max-height: 90vh;
    object-fit: contain;
  }
  
  #fullImageModal .carousel-control-prev-icon,
  #fullImageModal .carousel-control-next-icon {
    background-color: rgba(0, 0, 0, 0.7);
    padding: 10px;
    border-radius: 50%;
  }

  .event-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 18px;
    overflow: hidden;
    background: #fff;
    border: 1px solid #e0e0e0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
    position: relative;
  }
  
  .event-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
  }
  
  .event-card img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    background-color: #f5f6fa;
    padding: 8px;
    border-bottom: 1px solid #eee;
    border-radius: 18px 18px 0 0;
    transition: transform 0.3s ease;
  }
  
  .event-card img:hover {
    transform: scale(1.03);
  }
  
  .event-card .card-body {
    padding: 1rem 1.2rem;
  }
  
  .event-card .card-title {
    font-weight: 600;
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
    color: #111;
  }
  
  .event-card .card-text {
    font-size: 0.875rem;
    color: #666;
  }
  
  .event-card .read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    font-weight: 500;
    color: #004085;
    text-decoration: none;
    transition: color 0.2s ease;
  }
  
  .event-card .read-more:hover {
    color: #002752;
  }
  
  .read-more i {
    font-size: 1rem;
  }
  

  #eventGallery img {
    transition: transform 0.3s ease;
    cursor: pointer;
  }
  
  #eventGallery img:hover {
    transform: scale(1.03);
  }
  



  /* Animacja */
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  [data-aos="fade-up"] {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
    animation-delay: 0.2s;
  }