body {
            margin: 0;
            font-family: Arial, Helvetica, sans-serif;
            background-color: #f6f7f9;
            color: #1a1a1a;
        }
        nav a:hover {
            text-decoration: underline;
        }

        main {
            max-width: 1200px;
            margin: auto;
        }

        section {
            margin-bottom: 60px;
        }

        h1, h2 {
            color: #0b1f2a;
        }

        .hero {
            background-color: #ffffff;
            padding: 60px;
            border-radius: 8px;
        }

        .services {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .service-box {
            background-color: #ffffff;
            padding: 25px;
            border-radius: 8px;
border-left: 6px solid transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(
      to bottom,
      #7dff4a,
      #2f8f2e,
      #0f3f14
    ) border-box;
}

.service-box {
    width: 100%;
}

@media (min-width: 768px) {
    .service-box {
        width: auto;
    }
}


         .service-box {
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
         }

.service-box:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.12);
}


.service-box:hover h3 {
  color: var(--green-main);
}


         .services-grid {
            display: grid;
            gap: 24px;
         }

         .cta-button {
            transition: 
              transform 0.2s ease,
              box-shadow 0.2s ease,
              background-color 0.2s ease;
         }

         .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
         }

        .cta {
            background-color: #0b1f2a;
            color: #ffffff;
            padding: 50px;
            border-radius: 18px;
            text-align: center;
        }

        .footer {
            background-color: #0b1f2a;
            color: #ffffff;
            text-align: center;
            padding: 20px;
            font-size: 14px;
        }

:root {
  --green-glow: #7dff4a;
  --green-light: #6ccf4a;
  --green-main: #2f8f2e;
  --green-dark: #0f3f14;

  --green-gradient: linear-gradient(
    180deg,
    #7dff4a 0%,
    #6ccf4a 25%,
    #2f8f2e 55%,
    #0f3f14 100%
  );
}

.cta a:hover {
  filter: brightness(1.08);
  box-shadow:
    0 0 14px rgba(125, 255, 74, 0.45),
    inset 0 0 10px rgba(125, 255, 74, 0.25);
}

hr {
  border-image: linear-gradient(
    to right,
    transparent,
    var(--green-main),
    transparent
  ) 1;
}


@keyframes gradient-flow {
  0% {
    background-position: 0% 0%;
  }
  50% {
    background-position: 100% 100%;
  }
  100% {
    background-position: 0% 0%;
  }
}

.animated-gradient {
  background: var(--green-gradient);
  background-size: 200% 200%;
  animation: gradient-flow 6s ease infinite;
}

@keyframes gradient-3d {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.gradient-3d {
  background: linear-gradient(
    145deg,
    #7dff4a,
    #6ccf4a,
    #2f8f2e,
    #0f3f14,
    #071f0a
  );
  background-size: 300% 300%;
  animation: gradient-3d 8s ease-in-out infinite;

  /* Efekt 3D */
  box-shadow:
    inset 4px 4px 10px rgba(0, 0, 0, 0.4),
    inset -4px -4px 10px rgba(255, 255, 255, 0.15),
    0 8px 20px rgba(0, 0, 0, 0.4);
}

@keyframes glass-gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.glass-button {
  /* półprzezroczyste szkło */
  background: linear-gradient(
    135deg,
    rgba(125, 255, 74, 0.25),
    rgba(47, 143, 46, 0.25),
    rgba(15, 63, 20, 0.25)
  );
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);

  /* animacja światła */
  background-size: 200% 200%;
  animation: glass-gradient 8s ease-in-out infinite;

  /* efekt szkła 3D */
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.15),
    inset 0 0 40px rgba(255, 255, 255, 0.05),
    0 8px 25px rgba(0, 0, 0, 0.35);

  border: 1px solid rgba(255, 255, 255, 0.25);
}

@keyframes glass-blue {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.glass-blue-button {
  /* półprzezroczyste szkło w odcieniach niebieskiego */
  background: linear-gradient(
    135deg,
    rgba(0, 180, 255, 0.18),
    rgba(0, 120, 200, 0.18),
    rgba(0, 60, 120, 0.18)
  );

  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

  /* animacja subtelnego światła */
  background-size: 200% 200%;
  animation: glass-blue 10s ease-in-out infinite;

  /* efekt matowego szkła */
  box-shadow:
    inset 0 0 25px rgba(255, 255, 255, 0.08),
    inset 0 0 40px rgba(255, 255, 255, 0.04),
    0 8px 25px rgba(0, 0, 0, 0.35);

  border: 1px solid rgba(255, 255, 255, 0.22);
}

#lang-switch img {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

#lang-switch img:hover {
  transform: scale(1.08);
  box-shadow: 0 0 12px rgba(255,255,255,0.4);
}

.lang-btn {
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 0 10px rgba(255,255,255,0.15);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.lang-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 0 14px rgba(255,255,255,0.35);
}