/* ========================================================
   LabFREED Constants
   ========================================================*/

   :root {
    --color-labfreed-main-action: #438AD7;
    --color-labfreed-main-forestgreen: #093A34;
    --color-labfreed-main-lcdblue: #1C1847;
    --color-labfreed-main-black: #000000;
    --color-labfreed-main-darkgrey: #1D1D1D;
    --color-labfreed-main-lightgrey: #F8F8F8;
    --color-labfreed-main-white: #FFFFFF;

    --bp-small: 480px;
    --bp-medium: 810px;
    --bp-large: 1440px;
    --bp-xlarge: 5000px;

    --flux-layout-page-margin: 20px;


    --button-min-width: 80px;
    --button-max-width: 300px;

    --z-index-nav: 10000;
    --z-index-fixed: 9999;
}



/* utility classes */

.horizontal-center{
    display: flex;
    justify-content: center;
    align-items: center;
}




body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    display: flex;
    flex-direction: column; /* stack header, main, footer vertically */
    min-height: 100vh;      /* ensure at least full viewport height */
}


main {
    flex: 1;                /* expand to fill remaining space */
    padding: 1rem;
    box-sizing: border-box;
  }

/* ========================================================
Footer
========================================================*/  
footer {
    background: #eee;
    padding: 1rem;
    width:100%;
    bottom: 0;
    font-size: 0.8rem;
    border-top: 1px solid black;
    background-color: var(--color-labfreed-main-lightgrey);
}


/* ========================================================
   Commons
   ========================================================*/


/* show empty links as regular style */
a {
    color: black;
    text-decoration: none;
      font-weight: 700;
  }

a:hover {
    color: #0a58ca;
  }
  

a[href=""]{
    color: inherit;       /* Inherit color from parent element */
    text-decoration: none; /* Remove underline */
    cursor: default;      /* Change cursor to default */
    pointer-events: none; /* Disable clickability */
}

.inline-load-spinner {
    font-size:32px; 
    color: var(--color-labfreed-main-lcdblue);
}


input::placeholder {
    color: black !important;
    opacity: 0.25 !important;
  }

/* ========================================================
   Layout
   ========================================================*/

/* Container for flex layout */
.lf-content-container {  
    max-width:66%;
    margin: 0 auto;
    padding: 20px;
}

.lf-content-container > *{
    margin: 0 auto;
    width:100%;
}

@media (max-width: 640px) {
    .lf-content-container {
      max-width: 100%;
      box-sizing: border-box;
      padding: 0px;
    }
    .lf-content-container > *{
        margin-left: auto;    /* center the element */
        margin-right: auto;   /* center the element */
    }
  }



.backnav {
    margin-left:20px
}

.indent-1 {
    margin-left: 12px;
}



@media (max-width: 810px) {

    .lf-content-container {
        max-width:100%;
    }
}


.spacer {
    height:50vh;
}



/* ========================================================
   Buttons
   ========================================================*/



.btn {
    max-width: var(--button-max-width);
    width: fit-content; 
    border: none;
    border-radius: 10px;
    font-weight: 600;
    size: 18px;
    border: 2px inset #FFFFFF00 ;
    padding: 10px;
}

.btn-min-width {
    min-width: var(--button-min-width);
}


.btn-primary-action, .btn-primary-action *{
    background-color: var(--color-accent-primary); 
    color: var(--color-accent-primary-background);  
}

.btn-primary-action:focus {
    border: 2px inset #438AD7 ;
}

.btn-primary-action:hover {
    border: 2px inset #438AD7 ;
}

.btn-primary, .btn-primary * {
    background-color: #E6EBEA;   
    color: var(--color-labfreed-main-lcdblue);
}

.btn-primary:hover {
    background-color: #E6EBEA;   
    border: 2px solid #CCCCCC;
}

.btn-secondary {
    background-color: var(--color-labfreed-main-lcdblue);
}

.btn-secondary:hover {
    background-color: var(--color-labfreed-main-action);   
}

.right-align {
    right:0
}



.btn-sticky {
    position:sticky;
    bottom:4px;
    /*height:100px;
    width:100px;
    border-radius:100px; */
    box-shadow: 4px 4px 20 px;
    margin-bottom:20px;
    margin-top:20px;
    background:white;
    z-index:5000
}


.fixed{
    position:fixed;
    box-shadow: 4px 4px 20 px;
    margin:4px;
    background:white;
    z-index:5000
}

.bottom {
    bottom:0;
}

.top {
    top:0;
}

.right {
    right:var(--flux-layout-page-margin);
}

.left {
    left:var(--flux-layout-page-margin);
}


/* ========================================================
   Navigation
   ========================================================*/

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: var(--color-labfreed-main-white);
    color: var(--color-labfreed-main-black);
}


.nav-logo {
    max-height: 100px;   /* limit by height */
    max-width: 150px;    /* limit by width */
    height: auto;        /* maintain aspect ratio */
    width: 4.75em;         /* maintain aspect ratio */
}

/* Hamburger button */
.hamburger {
    display: none;
    background: none;
    color: var(--color-labfreed-main-black);
    font-size: 1.5em;
    border: none;
    cursor: pointer;
}

/* Nav links */
.nav-links {
    list-style: none;
    display: flex;
    gap: 8px;
}


.nav-links a:not(.nav-links-close) {
    color: var(--color-labfreed-main-black);
    text-decoration: none;
    transition: color 0.3s ease;

    display: flex;
    align-items: center;   
    gap: 0.4em; 
}

.nav-links-close {
    display:none;
}





/* Responsive styling for smaller screens */
@media screen and (max-width: 810px) {
    .hamburger {
        display: block;
    }


    .nav-links {
        display: none;
        flex-direction: column;
        position: fixed;
        top:10px;
        background-color: var(--color-labfreed-main-white);
        border: 1px solid var(--color-labfreed-main-darkgrey) ;
        padding: 8px;
        width: 100vw;
        height: 100vh;
        border-radius: 5px;
        
        z-index: var(--z-index-nav);
    }

    .nav-links.show {
        display: flex;
    }


    .nav-links-close {
        display:block;

        width:32px;
        height: auto;
        margin-bottom: 20px;
        margin-top: 20px;
        margin-left: 20px;
    }

    .nav-links-close::before{
        width:100%;
        padding-left: 4px;
        padding-top: 4px;
    }

    .nav-links li {
        margin-bottom: 4px;
        margin-left: 20px;
    }

    .nav-links li:last-child {
        margin-bottom: 0;
    }
}





/* ========================================================
   Search
   ========================================================*/

.search {
    --iconwidth: 20px;
    background-color: var(--color-labfreed-main-lightgrey);
    position: relative;
    padding-left: calc(4px + var(--iconwidth) );
    background-image: url('search.svg');
    background-size: var(--iconwidth) var(--iconwidth);
    background-repeat: no-repeat;
    background-position: 2px 50%;
}