/* effects.css – CZYSTY pionowy linear-gradient */

.btc-bg {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;

    background: linear-gradient(to bottom,
        #00448d 0%,
        #000e1c 100%
    );

    & .btc-title {
        position: absolute;
        padding: 20px;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        font-family: 'Voltaire', sans-serif;
        font-weight: 900;
        pointer-events: none;
        z-index: 2;
        text-align: center;
        width: 90vw;
        white-space: normal;
        background: white;
        background-clip: text;
        filter: drop-shadow(6px 8px 2px rgba(0, 0, 0, 0.7));
        font-size: clamp(36px, 12vw, 82px);
        letter-spacing: 0.5vw;
    }
}

.btc-particle {
    position: absolute;
    color: #ff8c00;
    font-size: 32px;
    font-weight: 900;
    pointer-events: none;
    user-select: none;
    text-shadow:
        0 0 15px #f7931a,
        0 0 30px #f7931a99,
        0 0 50px #f7931a44;
    animation: float linear infinite;
    z-index: 1;
    will-change: transform;
}

@keyframes float {
    0% {
        transform: translateY(-150px) translateX(-80px) rotate(0deg);
        opacity: 1;
    }
    8%  { opacity: 0.65; }
    92% { opacity: 0.65; }
    100% {
        transform: translateY(580px) translateX(120px) rotate(360deg);
        opacity: 0;
    }
}


/*IMAGES*/

.image-container {
 max-width: 1160px;

  &.reveal-fade-up {
    opacity: 0;
    transform: translateY(100px);
    transition: all 1.3s cubic-bezier(0.22, 1, 0.36, 1);

    &.active {
      opacity: 1;
      transform: translateY(0);
    }
  }

  & img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.6);
    display: block;
  }
}


/* SLIDER */
.tutorial-slider {
  width: 100%;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  text-align: center;
  color: #fff;

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

  & .slides-container {
    display: flex;
    transition: transform 0.4s ease-in-out;
    height: 100%;
  }

  & .slide {
    min-width: 100%;
  padding: 40px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column; 
  justify-content: center;
  align-items: center;

    & img {
      max-width: 100%;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.3);
      margin-bottom: 30px;
    }

    & .step-number {
      display: inline-block;
      background: #007bff;
      color: #fff;
      font-weight: bold;
      font-size: 24px;
      padding: 6px 16px;
      border-radius: 50px;
      margin-bottom: 15px;
    }

    & .description {
      line-height: 1.6;
      margin-bottom: 20px;
    }

    & .description  { font-size: 18px; color: #ccc; }
  }

  & .nav-btn {
    position: absolute;
    inset-block: 50%;
    transform: translateY(-50%);
    inline-size: 50px;
    block-size: 50px;
    background: rgb(61 107 253 / 50%);
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 28px;
    cursor: pointer;
    z-index: 10;
    transition: background .3s;

    &:hover { background: rgb(61 107 253 / 80%); }
    &.prev-btn { inset-inline-start: 15px; }
    &.next-btn { inset-inline-end: 15px; }
  }

  & .dots-container {
    padding: 20px 0;
    text-align: center;
    background: #111;

    & .dot {
      inline-size: 12px;
      block-size: 12px;
      margin: 0 6px;
      background: #555;
      border-radius: 50%;
      cursor: pointer;
      transition: .3s;

      &.active {
        background: #007bff;
        transform: scale(1.4);
      }
    }
  }

  @media (max-width: 640px) {
    & .slide { padding: 30px 20px; }
    & .nav-btn {
      inline-size: 40px;
      block-size: 40px;
      font-size: 22px;
    }
  }
}