@import url('https://fonts.googleapis.com/css2?family=Noto+Sans:ital,wght@0,100..900;1,100..900&family=Nunito:ital,wght@0,200..1000;1,200..1000&family=Rubik:ital,wght@0,300..900;1,300..900&display=swap');
@media only screen and (max-width: 319px) {
  :root {
    --h1: 16px; 
  }
}
@media only screen and (min-width: 320px) and (max-width: 375px) {
  :root {
    --h1: 16px; 
  }
}
@media only screen and (min-width: 376px) and (max-width: 480px) {
  :root {
    --h1: 16px;    
  }    
}
@media only screen and (min-width: 481px) and (max-width: 768px) {
  :root {
    --h1: 17px; 
  }
}
@media only screen and (min-width: 769px) and (max-width: 1024px) {
  :root {
    --h1: 17px; 
  }
}
@media only screen and (min-width: 1025px) {
  :root {
    --h1: 17px; 
  }    
}  
:root{
  /* кольори */
  --input-line-color:#EEEFE6;
  --filler-line-color:#DFDFD5;
  --font-color:#333333e3;/* #3C452D */;
  --gblue:#f5f6fa; 
  --background:#FDFBF3;
  --gray:#7878781d; 
  --green:#3E91DE;
  --expl:#ff9e551d;
  --light:#a4a4a4f0;
  --dark:#3d434312;
  --border-color:#42424228;
  --hcolor:#db9925dd;
  --menu-color:#F1EFE3;
  /* іконки */
  --mass-color:#DFDFD5;
  --mass-color2:#282B3E;
  --expl-color:#DFDFD5;
  --dist-color:#282B3E;
  /* відступи */
  --logo-size: calc(3.5*var(--h1));
  --spec-top: calc(.7*var(--h1));
  --image-width: calc(1.9*var(--h1));
  /* розмір шрифтів */
  --option-font: calc(.83*var(--h1)); 
  --select-font: calc(.7*var(--h1));
  --td:calc(.7*var(--h1));
  --th:calc(.6*var(--h1));
  /* радіус граней*/
  --radius: 3mm;
    }
/* upd */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
  transform: scale(0);
  animation: ripple-animation 500ms linear;
  pointer-events: none;
}

@keyframes ripple-animation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}
/* upd  */
.mdc-select__menu{
    width: 100%;
    background-color: var(--filler-line-color);
}


 /* 2 */
.mdc-select {
    width: 100%;
    margin-left: 10px;       
    }    
.mdc-text-field {
    width: 100%;
    margin-left: 10px;  
    }
.mdc-text-field--invalid .mdc-notched-outline {
    border-color: #ff3f15d7;
        }
.mdc-text-field--invalid .mdc-floating-label {
     color: #ff3f15d7;
        }
/* end upd */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #1e1e1ee3;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}
.expanded-image {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 95%;
  max-height: 95%;
  z-index: 1001;
  opacity: 0;
  transition: opacity 0.5s ease-in-out, transform 0.7s ease-in-out;
  border-radius: 3mm;
}
.close-icon {
  position: absolute;
  top: 30px;
  right: 20px;
  cursor: pointer;
  color: black;
  font-family: bold;
  background-color: #ffffff62;
  padding: 5px;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1002;
}
/*  */
#loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--background);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  }
#loader-animation {
  width: 100px; 
  height: 100px;
  }

form {
   border-radius: 5mm;   
   background-color: var(--input-line-color);
   padding: 10px;
   margin: var(--h1) 0;
   }
.caution {
    margin-top: 0;
    display: flex;    
    flex: 1;
    font-size: 9px;    
   }
.caution p {
   display: flex;
   flex-direction: column;
   align-items: stretch;
   align-self: stretch;
   padding: 1px 5px;
    }

/* upd_end */
body {
  max-width: 600px;       
  width: 100%;           
  margin: 0 auto;      
  padding: 0;       
  overflow-x: hidden;
  flex-direction: column;  
  background-color: var(--background ); 
  color: var(--font-color);
  font-family: "Rubik", serif;
  max-width: 500px;  
  }
main {  
  position: relative;
  padding-top: 45px;
  max-width: 100%;
  font-family: "Rubik", serif;
  font-optical-sizing: auto;
  font-style: normal;
  padding-bottom: 40px;

  }
.main-box{
  display: grid;
  gap: 20px;
  padding-top: 0;  
    }   
.det{
  border: 1px solid var(--input-line-color);
  border-radius: var(--radius);
  padding: 7px;
  font-size: var(--th);
  justify-content: center;
  align-content: center;
  background-color: var(--menu-color);
    }
/*ім'я програми*/
header {          
   position: fixed;    
   display: flex; 
   top: 0;
   left:0;    
   width: 100%;    
   z-index: 9;
    }
.name {
  font-family: "Rubik", serif;
  font-optical-sizing: auto;
  font-weight: 800;
  font-style: normal;
  font-variation-settings: "wdth" 200; 
  background: linear-gradient(to top, rgba(249, 250, 245, 0.5), rgba(249, 250, 245, 1)); 
  width: 100%;
  text-align: center;
  text-transform: capitalize;        
  display: flex;
  align-items: center; 
  justify-content: space-between; 
  width: 100%;
  position: relative;
  padding: 20px 0;
    }
.name a {       
  font-size: var(--h1); 
  margin: 0 auto;
  text-align: center;
 }
.spec {
  display: flex; 
  font-size: var(--spec); 
  padding-top: var(--spec-top);
  justify-content: center;
    }
.expand-menu img {
  width: var(--image-width);
  height: var(--image-width);
  object-fit: contain;
  z-index: 5;
    }
/* ВР */  
.expl-lines {
  width: 100%;
  position: relative;
  padding-left: 10px;
    }

/*--маса --*/
.input-box {
  display: flex;  
  font-family: "Rubik", serif;
  font-optical-sizing: auto;
  font-weight: 100;
  font-style: normal;
  font-variation-settings: "wdth" 100;
  } 
  /* upd */
.pressure-box{
  margin-bottom: 0;
}
.icon-mass1, .icon-mass2, .icon-dist, .icon-expl {   
  display: flex;
  justify-content: center;
  box-shadow: 0 1px 1px #D0C898;
  align-items: center;
  border-radius: var(--radius);
  padding: 3px;
  }
.icon-mass1{
  background-color: var(--mass-color);
}
.icon-mass2{
  background-color: var(--mass-color);
}
.icon-dist{
  background-color: var(--mass-color); 
}
.icon-expl{
  background-color: var(--expl-color);
}


.icon-mass1 img, .icon-mass2 img, .icon-dist img, .icon-expl img {
  width: var(--image-width);
  height: var(--image-width);
  object-fit: contain;
  opacity: 1;
  z-index: 6;
  }
  
.icon-expl img{
  z-index: 6;
 }   

/*посилання*/
footer {   
  position: fixed;
  box-shadow: 0 -1px 1px #D0C898;
  bottom: 0;
  right: 0;
  left:0;
  width: 100%;
  background-color: var(--filler-line-color);
  z-index:7;
}
.footer-content {  
  display: flex; 
} 
.link-icon1, .link-icon2{  
  width: 50%;
  border-radius: 20px;
}
.link-icon1:hover, .link-icon2:hover {
 background-color: var(--light);
}
.link-icon2 a, .link-icon1 a {  
  display: flex;
  text-align: center;
  justify-content: center;
  text-decoration: none;
  color: var(--font-color);   
} 
.link {
  line-height: 1em;
  display: block;
}
.first {
  padding: 4px;
  margin: auto;
  font-size: var(--td);       
}
.second {
  font-size: var(--th);
  color: var(--light);
} 
.link-icon1 img, .link-icon2 img {
  margin: auto 10px;
  width: var(--image-width);
  height: var(--image-width);   
}
/*  */
.dimming-options{
  position: absolute;
  top: 0;
  left: 0;
  margin: 0;
  display: none; 
  width: 100%;
  height: 100%;  
  transition: background-color 0.3s ease;
  z-index: 7;    
}
.dimming-menu{
  position: absolute;
  top: 0;
  left: 0;
  margin: 0;
  display: none; 
  width: 100%;
  height: 100%;  
  transition: background-color 0.3s ease;
  z-index: 9;    
}
.dim-active{
  display: flex;
  background-color: #6666664d;  
}
.dim-overflow{
 overflow: hidden;
}
/* меню */
.side-menu {
  position: fixed;
  top: 0;
  left: -50%; 
  width: 50%; 
  height: 100%;  
  background-color:var(--menu-color); 
  transition: left 0.3s ease; 
  z-index: 10;  
}
.side-menu ul {
  list-style: none;
  padding: 0; 
}
.side-menu li {
  display: flex;
  padding: 10px;
  align-content: center; 
  align-items: center;
}
.side-menu li img {
  width: 30px;
  height: 30px;
  padding-right: 10px;
}
.side-menu li a {
  color: var(--font-color); 
  font-size: 13px;
  text-decoration: none;
}
#mainContent {
  margin-left: 0; 
}
.menu-open {
  left: 0; 
}
.menu-header {  
  position: relative;
  width: 100%;
  height: auto;
  align-content: center;
  align-items: center;
  background-color: #C8C8B8;
}
.menu-header #logo {
  padding: 40px 0 0 20px;
  width: 100px;
  height: 100px ;
}
.menu-header #close {    
  position: absolute;
  top:20px;
  right:20px;
  height:1.5em;
  width:1.5em;
}
.menu-header p {
  font-size: 12px;
  color: black;
  font-weight:bold;
  padding: 5px;
  }  
.highlight{
  padding: 2px;
  background-color: #ffc8804e;
  font-weight: bold;
}
#UnitSelectorIcon {
  position: absolute;
  right: 10px;
  top: 3px;
  width: 20px;
  height: 20px;    
}

.icon-info {
  border: 1px solid #DFE6E9;
  border-radius: var(--radius);
  background-color: var(--filler-line-color);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  display: inline-block;
  width: 100%;   
  height: auto;
  -webkit-tap-highlight-color: transparent;   
  user-select: none; /* Для більшості браузерів */
  -webkit-user-select: none; /* Для Safari */
  -moz-user-select: none; /* Для Firefox */
  outline: none;
 }
.icon-info::before {
  content: '';
  display: block;
  padding-top: 47.6%;  
  }
#info {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover; 
  z-index: 1;
  }
.icon-info img[src] {
  border: 0.5px solid #ccc;
    }
/* icons */
.icon-expand {
    font-size: 21px;
    dispdisplay: flex;
    border-radius: 50%;
    width: 26px;
    height: 26px;
    align-content: center;
    text-align: center;
    background-color: #ffffff62;
    position: absolute;
    right: 5px;
    top: 5px;
}
.icon-menu {
    font-size: 30px;
    position: absolute;
    padding-left: 10px;
    }
.arrow-symbol {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 10px;   
}
 /* таблиця */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0 30px 0;
    font-size: var(--option-font);
    background-color: var(--input-line-color);
    }
th, td {
    border: 1px solid #3f3f3f48;
    padding: 8px;
    text-align: center;     
    }
th {
    background-color: var(--filler-line-color);
    }
thead{
    }
.button-container {
    display: flex;
    justify-content: center;
    width: 100%;    
}
button {    
    padding: 15px;
    width: 100%;
    max-width: 300px;
    font-size: var(--h1);
    border: 1px solid #74746a44;
    color: white;
    background-color:#4b98e1ee;
    border-radius: 5mm;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;   
    user-select: none; /* Для більшості браузерів */
    -webkit-user-select: none; /* Для Safari */
    -moz-user-select: none; /* Для Firefox */
    transition: background-color 0.3s ease;
    }
button:hover {
    background-color: #5c8cddad;
    }
button:not(:disabled):hover {
    background-color:#326dc6; 
}
button:disabled {
    background-color: #b1b1b16a; 
    color: #7979796a; 
    cursor: not-allowed; 
    opacity: 0.7;
}
.result-section {
     display: none;
     padding: 0 5px 20px 5px;
    }
.speed-calculation {
    font-size: 14px;
    margin-bottom: 10px;
    text-align: left;
    }
.mass-calculation {
    font-size: 14px;
    margin-bottom: 10px;
    text-align: left;
    }