/* 1. Use a more-intuitive box-sizing model */
*, *::before, *::after {
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    transition: all 0.3s ease-in-out;
  }
  
  /* 2. Remove default margin */
  * {
    margin: 0;    
  }
  
  body {
    /* 3. Add accessible line-height */
    line-height: 1.5;
    /* 4. Improve text rendering */
    -webkit-font-smoothing: antialiased;
    /* set padding */
    padding: 15px;
  }
  
  /* 5. Improve media defaults */
  img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
  }
  
  /* 6. Inherit fonts for form controls */
  input, button, textarea, select {
    font: inherit;
  }
  
  /* 7. Avoid text overflows */
  p, h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
  }
  
  /* 8. Improve line wrapping */
  p {
    text-wrap: pretty;
  }
  h1, h2, h3, h4, h5, h6 {
    text-wrap: balance;
  }
  
  /*
    9. Create a root stacking context
  */
  #root, #__next {
    isolation: isolate;
  }

  :root{
    --primary-color: rgb(14, 145, 10);
    --secondary-color: rgb(64, 175, 30);
  }
  /* 10. Width to 100% */
  
    input[type="range"], select, textarea{
        width: 100%;
    }

    select:focus, textarea:focus{
        border: 2px solid var(--primary-color);
        outline: none;
    }

/* Main */
main{
    display: block;
    padding: 15px;
    border-radius: 10px;
    width: clamp(300px, 100%, 500px);
    margin: auto;
    box-shadow: 0px 5px 5px 3px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

/* Header */
header{
    position: relative;
    text-align: left;
    margin-bottom: 15px;
    background-color: var(--secondary-color);
    color: rgb(250, 250, 250);
    padding: 10px;
    border-radius: 6px;
}

#link-portfolio:hover > #logo{
    opacity: 1;
    transform: scale(1.2);
}

#logo{
    position: absolute;
    top: 10px;
    right: 10px;
    height: 40px;
    opacity: 0.5;
}

#sub-title{
    margin-left: 5px;
}

/* Slider */
.slider{
    padding: 6px 0px;
}

/* Buttons */
#btns-container{
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    /* justify-content: center;  */
}

.btn{    
    display: block;
    flex: 1;
    flex-basis: 200px;
    cursor: pointer;
    background-color: var(--primary-color);
    border: none;
    color: rgb(250, 242, 242);
    padding: 10px;
    border-radius: 6px;
}

.btn:hover, .btn:focus{
    background-color: white;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    transform: scale(0.9);
    box-shadow: 0px 5px 5px 0px rgba(0, 0, 0, 0.3);
    outline: none;
}

/* Select Voice */
select{
    padding: 10px;
    cursor: pointer;
    border-radius: 5px;
    border: 1px solid #666666a1;
}

/* Text Area Message */
textarea{
    /* margin: 5px 0px; */
    padding: 10px;
    border: 1px solid #666666a1;
    border-radius: 5px;
    min-height: 200px;
    resize: vertical;
}

/* Slider Customization */
input {
    --c: var(--primary-color); /* active color */
    --g: 3px; /* the gap */
    --l: 5px; /* line thickness*/
    --s: 20px; /* thumb size*/
    
    /* width: 400px; */
    height: var(--s); /* needed for Firefox*/
    --_c: color-mix(in srgb, var(--c), #000 var(--p,0%));
    -webkit-appearance :none;
    -moz-appearance :none;
    appearance :none;
    background: none;
    cursor: pointer;
    overflow: hidden;
  }
  input:focus-visible,
  input:hover{
    --p: 25%;
  }
  input:active,
  input:focus-visible{
    --_b: var(--s)
  }
  /* chromium */
  input[type="range" i]::-webkit-slider-thumb{
    height: var(--s);
    aspect-ratio: 1;
    border-radius: 50%;
    box-shadow: 0 0 0 var(--_b,var(--l)) inset var(--_c);
    border-image: linear-gradient(90deg,var(--_c) 50%,#ababab 0) 0 1/calc(50% - var(--l)/2) 100vw/0 calc(100vw + var(--g));
    -webkit-appearance: none;
    appearance: none;
    transition: .3s;
  }
  /* Firefox */
  input[type="range"]::-moz-range-thumb {
    height: var(--s);
    width: var(--s);
    background: none;
    border-radius: 50%;
    box-shadow: 0 0 0 var(--_b,var(--l)) inset var(--_c);
    border-image: linear-gradient(90deg,var(--_c) 50%,#ababab 0) 0 1/calc(50% - var(--l)/2) 100vw/0 calc(100vw + var(--g));
    -moz-appearance: none;
    appearance: none;
    transition: .3s;
  }
  @supports not (color: color-mix(in srgb,red,red)) {
    input {
      --_c: var(--c);
    }
  }