@import url("variables.css");

button {
  background-color: transparent;
  border: none;
  font: var(--link-default);
}

a:link,
a:hover,
a:focus,
a:active,
a:visited {
  text-decoration: none;
  color: var(--link-default);
}

.btn {
  border-radius: 100px;
  cursor: pointer;
}

.btn-primary {
  display: flex;
  justify-self: center;
  gap: 8px;
  width: 200px;
  padding: 20px 0;
  background: var(--back-body);
  position: relative;
  color: var(--text-default);

  & svg {
    position: absolute;
    width: 22px;
    height: 22px;
    right: 63px;
    opacity: 0;
    user-select: none;
    transition: opacity 0.5s ease;
  }

  & span {
    display: inline-block;
    flex: 1 1 auto;
    transition: margin-right 0.5s ease;
  }

  &:hover {
    & svg {
      opacity: 1;
    }
    & span {
      margin-right: 28px;
    }
  }
}

.btn-secondary {
  padding: 9px 78px;
  border: 1px solid var(--border-default);
  color: var(--text-default);
  transition: background-color 0.5s ease, color 0.5s ease;

  &:hover {
    background-color: var(--back-container);
    color: var(--text-inverse);
  }
}

.btn-tretiary {
  display: flex;
  gap: 8px;
  width: 200px;
  height: 64px;
  padding: 12px 19px;
  border: 1px solid var(--border-default);
  color: var(--text-default);
  transition: background-color 0.5s ease, color 0.5s ease;

  & svg {
    transition: fill 0.5s ease;
  }

  &:hover {
    background-color: var(--back-container);
    color: var(--text-inverse);

    & svg {
      fill: var(--text-inverse);
    }
  }

  & span {
   display: block;
   text-align: left;
  }
}

.btn-icon {
  display: flex;
  width: 60px;
  height: 60px;
  border-radius: 100px;
  justify-content: center;
  align-items: center;
  transition: background-color 0.5s ease;

  & svg {
    transition: stroke 0.5s ease;
  }
}

.btn-icon-dark {
  border: 1px solid var(--border-default);

  &:hover {
    background-color: var(--back-container);

    & svg {
      stroke: var(--text-inverse);
    }
  }
}

.btn-icon-light {
  border: 1px solid var(--border-inverse);

  &:hover {
    background-color: var(--back-body);
    border: 1px solid var(--back-body);

    & svg {
      stroke: var(--text-default);
    }
  }
}

@media (max-width:768px) {

  .btn-burger {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 7px;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-default);
    transition: background-color 0.5s ease;
  }

  @media (hover:hover) {
    .btn-burger:hover {
      background-color: var(--border-default);

      & span {
        background-color: var(--text-inverse);
      }
    }
  }

  .btn-burger-line {
    position: absolute;
    display: block;
    width: 16px;
    height: 1.5px;
    border-radius: 10px;
    background-color: var(--text-default);
    transition: all 0.7s ease;
  }

  .btn-burger-line:first-child {
    top: 16px;
  }

  .btn-burger-line:last-child {
    top: 26px;
  }
}

.burger-open {
  & .btn-burger-line:first-child {
    transform: rotate(45deg);
    top: 50%;
  }

  & .btn-burger-line:last-child {
    transform: rotate(-45deg);
    top: 50%;
  }
}

.link-animated {
  position: relative;
  cursor: pointer;

  &::before {
    content: "";
    display: block;
    width: 0;
    height: 2px;
    background-color: var(--text-default);
    position: absolute;
    bottom: -20%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: width 0.5s ease, opacity 0.5s ease;
  }

  &:hover::before {
    width: 100%;
    opacity: 1;
  }
}

@media (min-width: 769px) {

.link-active {
  position: relative;

  &::before {
    content: "";
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-default);
    position: absolute;
    bottom: 0;
    left: 0;
  }
}
}

.contact-item {
  &::before {
    background-color: var(--text-inverse);
  }
}

@media (hover:none) {
  .btn-primary {
    & svg {
      opacity: 1;
    }
    & span {
      margin-right: 28px;
    }
  }
  .btn-secondary {
    &:hover {
      background-color: var(--border-default);
      color: var(--text-default);
    }
  }
  .btn-tretiary {
    &:hover {
      background-color: transparent;
      color: var(--text-default);
  
      & svg {
        fill: var(--text-default);
      }
    }
  }
  .btn-icon-dark {
    &:hover {
      background-color: transparent;
      border: 1px solid var(--border-default);
  
      & svg {
        stroke: var(--text-default);
      }
    }
  }
  .btn-icon-light {
    &:hover {
      background-color: transparent;
      border: 1px solid var(--border-inverse);
  
      & svg {
        stroke: var(--text-inverse);
      }
    }
  }
  .link-animated {
    &:hover::before {
      width: 0;
      opacity: 0;
    }
  }
}