/* CUSTUM PROPERTY */

:root {

    /* COLORS */
  
    --white: hsl(0, 0%, 100%);
    --black: hsl(0, 0%, 0%);
    --amaranth: hsl(349, 69%, 53%);
    --xiketic-1: hsl(272, 55%, 6%);
    --xiketic-2: hsl(256, 100%, 3%);
    --nsu-purple: hsl(270, 55%, 31%);
    --silver-sand: hsl(220, 10%, 76%);
    --purple-violet: hsl(266, 55%, 15%);
    --battleship-gray: hsl(0, 0%, 70%);
    --light-periwinkle: hsl(240, 30%, 83%);
    --maximum-blue-perple: hsl(231, 50%, 77%);
  
    /* TYPO-GRAPHY */
  
     --ff-poppins: "Poppins", sans-serif;
     --fs-1: 36px;
     --fs-2: 30px;
     --fs-3: 22px;
     --fs-4: 18px;
     --fs-5: 16px;
     --fs-6: 14px;
  
      --fw-600: 600;
      --fw-500: 500;

    /* TRANSITION */
  
    --transition: 0.15s ease-in-out;
  
  }

  /* RESET */
  
  *, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  li { list-style: none; }
  
  a { text-decoration: none; }
  
  img, span, button, a, ion-icon { display: block; }
  
  button {
    background: none;
    border: none;
    font: inherit;
    cursor: pointer;
  }
  
  html {
    font-family: var(--ff-poppins);
    color: var(--white);
    scroll-behavior: smooth;
  }
  
  body { overflow-x: hidden; }
  
  ::-webkit-scrollbar { width: 10px; }
  
  ::-webkit-scrollbar-track { background: var(--xiketic-1); }
  
  ::-webkit-scrollbar-thumb {
    background: var(--nsu-purple);
    border-radius: 10px;
  }
  
  ::-webkit-scrollbar-button {
    height: 10px;
    background: var(--xiketic-1);
  }

  /* RE-USED STYLES */
  
  .container {
    padding: 30px 15px;
    padding-right: 8px;
  }
  
  .btn-primary {
    background: var(--amaranth);
    color: var(--white);
    font-size: var(--fs-6);
    font-weight: var(--fw-500);
    text-transform: capitalize;
    padding: 12px 40px;
    border-radius: 25px;
  }
  
  .btn-primary:hover { --amaranth: hsl(349, 69%, 43%); }
  
  .h1,
  .h2,
  .h3,
  .h5 {
    font-weight: var(--fw-500);
    line-height: 1.3;
  }
  
  .h1 { font-size: var(--fs-1); }
  
  .h2 { font-size: var(--fs-2); }
  
  .h3 { font-size: var(--fs-3); }
  
  .h5 {
    font-size: var(--fs-5);
    font-weight: var(--fw-600);
  }

  /* HEADER */
  
  header {
    position: relative;
    background: var(--xiketic-1);
  }
  
  header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .navbar {
    background: var(--purple-violet);
    position: fixed;
    bottom: 100%;
    left: 0;
    width: 100%;
    padding: 20px 10px;
    box-shadow: 0 2px 5px hsla(0, 0%, 0%, 0.5);
    visibility: hidden;
    transition: var(--transition);
    z-index: 1;
  }
  
  .navbar.active {
    transform: translateY(100%);
    visibility: visible;
  }
  
  .navbar-link {
    width: max-content;
    color: var(--white);
    font-size: var(--fs-6);
    font-weight: var(--fw-500);
    padding: 10px 20px;
    border-radius: 8px;
  }
  
  .navbar-link:hover { background: var(--nsu-purple); }
  
  .navbar .btn-primary { display: none; }
  
  .nav-open-btn,
  .nav-close-btn {
    background: var(--white);
    color: var(--black);
    font-size: 30px;
    padding: 3px;
    border-radius: 8px;
  }
  
  .nav-close-btn {
    position: absolute;
    top: 20px;
    right: 15px;
  }

  /* MAIN */
  
  main { background: var(--xiketic-1); }

  /* HERO */
  
  .hero {
    min-height: 80vh;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 100px 0 130px;
  }
  
  .hero-title { margin-bottom: 50px; }

  /* DOWNLOADS */
  
  .download { padding: 80px 0; }
  
  .download-list {
    display: grid;
    grid-template-columns: 1fr;
    place-items: center;
    gap: 40px;
  }
  
  .download-link {
    max-width: 150px;
    color: var(--white);
    font-size: var(--fs-4);
    text-align: center;
  }
  
  .download-link ion-icon {
    margin: auto;
    font-size: 65px;
    margin-bottom: 15px;
  }

  /* FEATURES */
  
  .features {
    padding: 80px 0;
    display: grid;
    grid-template-columns: 1fr;
    place-items: center;
    gap: 60px;
  }
  
  .features-item:not(:last-child) { margin-bottom: 50px; }
  
  .features-item-title { margin-bottom: 20px; }
  
  .features-item-text { color: var(--light-periwinkle); }
  
  .feature-banner { position: relative; }
  
  .feature-banner-bg {
    position: absolute;
    top: 5%;
    left: 50%;
    transform: translateX(calc(-50% - 3px));
    width: 125%;
  }
  
  .banner-img {
    position: relative;
    left: 5px;
    width: 100%;
    margin: auto;
  }

  /* OVERVIEW */
  
  .overview { padding: 80px 0; }
  
  .overview-card {
    background: var(--xiketic-2);
    border-radius: 12px;
    box-shadow: 0 2px 4px hsla(0, 0%, 0%, 0.5);
  }
  
  .overview-banner { padding: 40px 0; }
  
  .overview-banner img {
    width: 100%;
    max-width: 320px;
    margin: auto;
  }
  
  .overview-content { padding: 0 25px 40px; }
  
  .overview-title { margin-bottom: 20px; }
  
  .overview-text {
    margin-bottom: 40px;
    color: var(--light-periwinkle);
  }
  
  .overview-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
  }
  
  .overview-item:not(:last-child) { margin-bottom: 20px; }
  
  .overview-item ion-icon {
    color: var(--amaranth);
    font-size: 20px;
  }
  
  .overview-item span {
    font-size: var(--fs-6);
    width: calc(100% - 30px);
  }

  /* BLOGS */
  
  .blog { padding: 80px 0; }
  
  .blog-title {
    text-align: center;
    margin-bottom: 60px;
  }
  
  .blog-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
  }
  
  .blog-banner {
    position: relative;
    height: 250px;
    margin-bottom: 40px;
  }
  
  .blog-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
  }
  
  .blog-banner time {
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--amaranth);
    color: var(--white);
    font-size: var(--fs-6);
    font-weight: var(--fw-600);
    text-align: center;
    min-width: 130px;
    padding: 8px 0;
    border-radius: 20px;
  }
  
  .blog-post-title {
    color: var(--white);
    margin-bottom: 10px;
  }
  
  .blog-post:hover .blog-post-title { text-decoration: underline; }
  
  .blog-post-text {
    color: var(--silver-sand);
    font-size: var(--fs-6);
    padding-right: 50px;
  }

  /* FOOTER */
  
  footer { background: var(--xiketic-2); }
  
  footer .container { padding: 80px 15px; }
  
  .footer-brand { margin-bottom: 40px; }
  
  .footer-logo { margin-bottom: 30px; }
  
  .footer-brand p {
    font-size: var(--fs-6);
    font-weight: 400;
    margin-bottom: 20px;
  }
  
  .social-list {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  
  .social-link {
    color: var(--maximum-blue-perple);
    font-size: 20px;
  }
  
  .social-link:hover { color: var(--white); }
  
  .footer-link-box {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .footer-item-title { margin-bottom: 20px; }
  
  .footer-link {
    width: max-content;
    color: var(--maximum-blue-perple);
    font-size: var(--fs-6);
    margin-bottom: 8px;
  }
  
  .footer-link:hover { text-decoration: underline; }
  
  .footer-btn-group > a { width: max-content; }
  
  .footer-btn-group img:first-of-type { margin-bottom: 20px; }
  
  .copyright {
    color: var(--maximum-blue-perple);
    padding: 20px 15px;
    text-align: center;
    font-size: var(--fs-6);
    border-top: 1px solid hsla(240, 30%, 83%, 0.1);
  }

  /* GO TO TOP */
  
  .go-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--amaranth);
    color: var(--white);
    font-size: 20px;
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    box-shadow: 0 1px 3px hsla(0, 0%, 0%, 0.5);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease-in;
  }
  
  .go-top:hover { --amaranth: hsl(349, 69%, 43%); }
  
  .go-top.active {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
  }
  
  /*-----------------------------------*\
   * #RESPONSIVE 
  \*-----------------------------------*/
  
  /**
   * responsive larger than 360px screen
   */
  
  @media (min-width: 360px) {
  
    /* CUSTOM PROPERTY */
  
    :root {
  
      /* TYPO-GRAPHY */
  
      --fs-1: 42px;
      --fs-2: 32px;
  
    }
  
  }
  
  /**
   * responsive larger than 450px screen
   */
  
  @media (min-width: 450px) {
  
    /* CUSTOM PROPERTY */
  
    :root {

        /* FEATURES */
  
      --fs-1: 48px;
      --fs-2: 36px;
      --fs-3: 24px;
  
    }

    /* FEATURES */
  
    .feature-banner-bg { width: 150%; }

    /* OVERVIEW */
  
    .overview-content { padding: 0 40px 50px; }

    /* BLOGS */
  
    .blog-title { --fs-2: 32px; }
  
    .blog-post-title { --fs-3: 22px; }
  
  }
  
  /**
   * responsive larger than 600px screen
   */
  
  @media (min-width: 600px) {
  
    /* CUSTOM PROPERTY */
  
    :root {
  
      /* TYPO-GRAPHY */
  
      --fs-1: 52px;
  
    }

    /* RE=USED STYLES */
  
    .container {
      max-width: 520px;
      margin: auto;
    }

    /* BLOGS */
  
    .blog-banner { height: 300px; }
  
    .blog-title { --fs-2: 42px; }

    /* FOOTER */
  
    .footer-brand { margin-bottom: 40px; }
  
    .footer-link-box { grid-template-columns: 1fr 1fr; }
  
  }
  
  /**
   * responsive larger than 768px screen
   */
  
  @media (min-width: 768px) {
  
    /* RE-USED STYLES */
  
    .container { max-width: 700px; }

    /* DOWNLOAD */
  
    .download-list {
      grid-template-columns: repeat(3, 1fr);
      max-width: fit-content;
      margin: auto;
      gap: 80px;
    }

    /* FEATURES */
  
    .features-item {
      max-width: 450px;
      margin-inline: auto;
      text-align: center;
    }
  
    .feature-banner-bg { width: 170%; }

    /* BLOGS */
  
    .blog-list { grid-template-columns: 1fr 1fr; }
  
  }
  
  /**
   * responsive larger than 1024px screen
   */
  
  @media (min-width: 1024px) {
  
    /* RE-USED STYLE */
  
    .container { max-width: 970px; }

    /* NAVBAR */
  
    .navbar {
      position: static;
      visibility: visible;
      background: none;
      padding: 0;
      box-shadow: none;
    }
  
    .nav-open-btn,
    .nav-close-btn { display: none; }
  
    .navbar-list {
      display: flex;
      justify-content: flex-end;
      align-items: center;
    }
  
    .navbar-link { position: relative; }
  
    .navbar-link:hover { background: none; }
  
    .navbar-link::before {
      content: "";
      position: absolute;
      bottom: 0;
      left: 25%;
      background: transparent;
      width: 50%;
      height: 2px;
    }
  
    .navbar-link:hover::before { background: var(--white); }
  
    .navbar .btn-primary {
      display: block;
      margin-left: 15px;
    }

    /* HERO */
  
    .hero { position: relative; }
  
    .hero-content { width: 50%; }
  
    .hero-banner {
      position: absolute;
      top: 50%;
      right: -100px;
      transform: translateY(-50%);
      background: url("../images/hero.png") no-repeat;
      background-size: contain;
      width: 70%;
      padding-bottom: 50%;
    }

    /* FEATURED */
  
    .features {
      grid-template-columns: repeat(3, 1fr);
      gap: 100px;
    }
  
    .features-list:first-child li { text-align: right; }
  
    .features-list:last-child li { text-align: left; }

    /* OVERVIEW */
  
    .overview-card {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
  
    .overview-banner img { max-width: 380px; }
  
    .overview-content {
      width: 55%;
      padding: 40px;
    }

    /* BLOGS */
  
    .blog-list { grid-template-columns: repeat(3, 1fr); }
  
    .blog-banner { height: 200px; }
  
  /* FOOTER */
  
    footer .container {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
    }
  
    .footer-link-box { grid-template-columns: repeat(4, 1fr); }
  
    .footer-btn-group { margin-left: 20px; }
  
  }
  
  /**
   * responsive larger than 1200px screen
   */
  
  @media (min-width: 1200px) {
  
    /* CUSTOM PROPERTY */
  
    :root {
  
      /* TYPO-GRAPHY */
  
      --fs-1: 60px;
  
    }

    /* RE-USED STYLE */
  
    .container { max-width: 1140px; }

    /* HERO */
  
    .hero {
      padding-top: 120px;
      padding-bottom: 150px;
    }
  
    .hero-banner {
      top: 55%;
      right: -50px;
    }
  
    /* BLOG */
  
    .blog { padding-bottom: 150px; }
  
    /* FOOTER */
  
    footer .container { padding: 100px 15px; }
  
  }