/*body*/
body {
  background: #0a0b0f;
  color: #e6e6e6;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  overflow-x: hidden;
}

/*main page content*/
.container {
  margin: 0 auto;
  padding: 32px;
  line-height: 1.7;
}

/*text fonts*/
h1, h2, h3, h4 {
  color: #ffffff;
  margin-bottom: 8px;
  text-shadow: 0 0 8px rgba(255, 200, 150, 0.4);
}

/*main hero text font*/
h1 {
  font-size: 2.4rem;
  margin-bottom: 24px;
  text-align: center;
}

/*content block style*/
.content-block {
  background: #11131a;
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 24px;
  box-shadow: 0 0 12px rgba(0,0,0,0.35);
  border: 1px solid #1c1f27;
}

/*ul of container*/
.container ul {
  padding-left: 20px;
}

/*li of container*/
.container li {
  margin-bottom: 6px;
}

/*a of container*/
.container a {
  color: #9fd3ff;
  text-decoration: none;
}

/*a:hover of container*/
.container a:hover {
  text-decoration: underline;
}

/*shefurico-img container*/
.shefurico-img-container {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 10px;
  margin-top: 20px;
  margin-left: 40px;
}

/*small text font*/
small {
  color: #9aa0a6;
}

/*disclaimer*/
.disclaimer {
  background: #1a1d25;
  padding: 16px;
  border-radius: 10px;
  margin-bottom: 24px;
  border-left: 4px solid #4aa3ff;
  box-shadow: 0 0 10px rgba(0,0,0,0.4);
}

/*navigation simple*/
nav {
  background: #11131a;
  padding: 20px;
  border-radius: 12px;
  margin-bottom: 24px;
  box-shadow: 0 0 12px rgba(0,0,0,0.35);
  border: 1px solid #1c1f27;
}

/*main navigation*/
.main-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
}

/*li a of main navigation*/
.main-nav li a {
  color: #9fd3ff;
  font-size: 18px;
  font-weight: bold;
}

/*li a:hover of main navigation*/
.main-nav li a:hover {
  text-decoration: underline;
}

/*scroll button*/
.scroll-btn {
  position: fixed;
  right: 20px;
  padding: 10px 14px;
  font-size: 20px;
  background: #1a1d25;
  color: #9fd3ff;
  border: 1px solid #4aa3ff;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0,0,0,0.4);
  transition: 0.2s;
  display: none;
  z-index: 999;
}

/*scroll button down*/
#scrollDown {
  bottom: 20px;
}

/*scroll button up*/
#scrollUp {
  bottom: 70px;
}

/*:hover of scroll button*/
.scroll-btn:hover {
  background: #4aa3ff;
  color: #0a0b0f;
}

/*footer rights*/
.footer-rights {
  text-align: center;
  padding: 20px 0;
  font-size: 20px;
  color: rgba(200, 200, 200, 0.35);
  user-select: none;
}

/*4k media*/
@media (min-width: 2560px) {

  .container {
    width: min(80%, 1800px);
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2.2rem;
  }

  .content-block {
    padding: 32px;
    margin-bottom: 32px;
  }

  nav {
    padding: 28px;
  }

  .main-nav li a {
    font-size: 22px;
  }

  .footer-rights {
    font-size: 22px;
  }

}

/*2k media*/
@media (min-width: 1600px) {
  .container {
    width: min(85%, 1400px);
  }

  h1 {
    font-size: 2.8rem;
  }

  h2 {
    font-size: 2rem;
  }

  .content-block {
    padding: 28px;
  }
}

/*notebook media*/
@media (max-width: 1600px) {
  .container {
    width: 90%;
  }

  h1 {
    font-size: 2.2rem;
  }

  h2 {
    font-size: 1.6rem;
  }
}

/*planchet media*/
@media (max-width: 1200px) {
  .container {
    width: 92%;
    padding: 24px;
  }

  h1 {
    font-size: 2rem;
  }

  .content-block {
    padding: 18px;
  }

  nav {
    padding: 16px;
  }

  .main-nav {
    gap: 14px;
  }
}

/*phone media*/
@media (max-width: 768px) {
  .container {
    width: 95%;
    padding: 18px;
  }

  h1 {
    font-size: 1.7rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  .content-block {
    padding: 14px;
  }

  .main-nav li a {
    font-size: 16px;
  }

  .footer-rights {
    font-size: 16px;
  }

}