new.css

:root {

    /**
     * colors
     */
  
    --flourescent-blue: hsl(178, 100%, 49%);
    --heliotrope-gray: hsl(253, 15%, 70%);
    --russian-violet: hsl(252, 80%, 16%);
    --dark-violet: hsl(252, 100%, 12%);
    --space-cadet: hsl(247, 43%, 20%);
    --blue-ryb: hsl(221, 100%, 50%);
    --white: hsl(0, 0%, 100%);
  
    --gradient: linear-gradient(to right, var(--flourescent-blue), var(--blue-ryb));
  
    /**
     * typography
     */
  
    --ff-josefin: 'Josefin sans', sans-serif;
  
    --fs-1: 25px;
    --fs-2: 18px;
    --fs-3: 17px;
    --fs-4: 15px;
  
    --fw-500: 500;
    --fw-700: 700;
  
    /**
     * transition
     */
  
    --transition: 0.25s ease-in-out;
  
    /**
     * spacing
     */
  
    --section-padding: 30px;
  
  }
  
  
  
  
  
  /*-----------------------------------*\
    #RESET
  \*-----------------------------------*/
  
  *, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  li { list-style: none; }
  
  a { text-decoration: none; }
  
  a,
  img,
  span,
  input,
  button,
  ion-icon { display: block; }
  
  button {
    font: inherit;
    background: none;
    border: none;
    cursor: pointer;
  }
  
  input {
    font: inherit;
    border: none;
    width: 100%;
  }
  
  :focus { outline-offset: 4px; }
  
  html {
    font-family: var(--ff-josefin);
    scroll-behavior: smooth;
  }
  
  body {
    background: var(--dark-violet);
    color: var(--white);
  }
  .btn {
    color: var(--white);
    font-size: var(--fs-4);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    padding: 9px 10px;
    border-radius: 4px;
  }
  
  .btn-primary {
    background: var(--gradient);
    background-size: 500%;
    background-position: right;
    padding: 15px 25px;
    gap: 8px;
    transition: background var(--transition);
  }
  
  .btn-primary:is(:hover, :focus) { background-position: left; }
  
  .btn-primary > ion-icon { font-size: 18px; }
  
  .btn-primary > span { margin-top: 3px; }
  
  .container { padding: 0 15px; }
  
  .h3 {
    color: var(--white);
    font-size: var(--fs-2);
    line-height: 1.5;
  }
  
  header {
    position: fixed;
    top: -90px;
    left: 0;
    width: 100%;
    padding-block: 15px;
    box-shadow: 0 1px 3px hsla(0, 0%, 0%, 0.5);
    background: var(--russian-violet);
    transition: var(--transition);
    z-index: 4;
  }
  
  header.active { top: 0; }
  
  header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .nav-toggle-btn {
    color: var(--white);
    font-size: 35px;
    border-radius: 4px;
  }
  
  .nav-toggle-btn ion-icon { --ionicon-stroke-width: 40px; }
  
  .navbar {
    position: fixed;
    bottom: -270px;
    left: 0;
    width: 100%;
    background: var(--russian-violet);
    border-radius: 8px 8px 0 0;
    padding: 30px 10px 10px;
    box-shadow: 0 -1px 10px hsla(0, 0%, 0%, 0.5);
    z-index: 2;
    visibility: hidden;
    transition: 0.15s ease-in;
  }
  
  .navbar.active {
    bottom: 0;
    visibility: visible;
    transition: 0.25s ease-out;
  }
  
  .navbar-list {
    padding-bottom: 5px;
    border-bottom: 1px solid hsla(0, 0%, 100%, 0.05);
    margin-bottom: 5px;
  }
  
  .navbar::before {
    content: "";
    position: absolute;
    top: 13px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 4px;
    background: hsla(0, 0%, 100%, 0.05);
    border-radius: 5px;
  }
  
  .navbar-link {
    color: var(--white);
    font-size: var(--fs-4);
    padding: 10px;
    border-radius: 4px;
  }
  
  .navbar-link:is(:hover, :focus) { background: hsla(0, 0%, 100%, 0.1); }
  
  .navbar-actions {
    display: flex;
    justify-content: space-around;
    align-items: center;
  }
  
  .navbar-btn {
    color: var(--white);
    font-size: 25px;
    padding: 5px;
    border-radius: 4px;
  }
  
  .navbar-btn:is(:hover, :focus),
  .navbar-actions .btn:is(:hover, :focus) { background: hsla(0, 0%, 100%, 0.1); }

  .overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    transition: var(--transition);
  }
  
  .overlay.active {
    pointer-events: all;
    background: hsla(0, 0%, 0%, 0.7);
  }