:root {

    /**
     * colors
     */
  
    --gold-web-golden: hsl(50, 95%, 56%);
    --spanish-orange: hsl(24, 100%, 45%);
    --persian-green: hsl(175, 80%, 33%);
    --granite-gray: hsl(0, 0%, 40%);
    --spring-green: hsl(143, 85%, 58%);
    --ultramarine: hsl(260, 100%, 44%);
    --blue-violet: hsl(272, 76%, 53%);
    --smoky-black: hsl(0, 0%, 7%);
    --dark-orange: hsl(33, 100%, 50%);
    --winter-sky: hsl(332, 100%, 51%);
    --cultured-1: hsl(0, 0%, 98%);
    --cultured-2: hsl(0, 0%, 95%);
    --cultured-3: hsl(0, 0%, 94%);
    --light-gray: hsl(0, 0%, 80%);
    --alice-blue: hsl(206, 89%, 93%);
    --white_50: hsla(0, 0%, 100%, 0.5);
    --white-1: hsl(0, 0%, 100%);
    --white-2: hsl(0, 0%, 99%);
    --black: hsl(0, 0%, 0%);
  
   
  
    --ff-spartan: 'League Spartan', sans-serif;
  
    --fs-1: 3rem;
    --fs-2: 2.7rem;
    --fs-3: 2.2rem;
    --fs-4: 1.8rem;
    --fs-5: 1.6rem;
  
    --fw-400: 400;
    --fw-500: 500;
    --fw-600: 600;
    --fw-700: 700;
    --fw-900: 900;
  
  
  
    --section-padding: 60px;
  
 
  
    --shadow-1: 0 2px 25px hsla(0, 0%, 0%, 0.1);
    --shadow-2: 0 8px 14px hsla(0, 0%, 0%, 0.1);
    --shadow-3: 0 14px 30px hsla(0, 0%, 0%, 0.05);
  
  
  
    --radius-6: 6px;
    --radius-12: 12px;
  

    --gradient-1: linear-gradient(to right, var(--winter-sky), var(--dark-orange));
    --gradient-2: linear-gradient(to right, var(--ultramarine), var(--blue-violet));
    --gradient-3: linear-gradient(to right, var(--winter-sky), var(--dark-orange));
    --gradient-4: linear-gradient(to right, var(--ultramarine), var(--blue-violet));
    --gradient-5: linear-gradient(to right, var(--persian-green), var(--spring-green));
    --gradient-6: linear-gradient(to right, var(--spanish-orange), var(--gold-web-golden));

  
    --transition-1: 0.25s ease;
    --transition-2: 0.5s ease;
    --cubic-out: cubic-bezier(0.33, 0.85, 0.4, 0.96);
  
  }
  
  
  
  
  
  /*-----------------------------------*\
    #RESET
  \*-----------------------------------*/
  
  *,
  *::before,
  *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  li { list-style: none; }
  
  a {
    text-decoration: none;
    color: inherit;
  }
  
  a,
  img,
  svg,
  span,
  input,
  button,
  strong,
  ion-icon { display: block; }
  
  img { height: auto; }
  
  input,
  button {
    background: none;
    border: none;
    font: inherit;
  }
  
  input { width: 100%; }
  
  button { cursor: pointer; }
  
  ion-icon { pointer-events: none; }
  
  html {
    font-family: var(--ff-spartan);
    font-size: 10px;
    scroll-behavior: smooth;
  }
  
  body {
    background-color: var(--white-1);
    color: var(--granite-gray);
    font-size: 1.6rem;
  }
  
  :focus-visible { outline-offset: 4px; }
  
  
  
  
  
  /*-----------------------------------*\
    #REUSED STYLE
  \*-----------------------------------*/
  
  .container { padding-inline: 15px; }
  
  .section { padding-block: var(--section-padding); }
  
  .w-100 { width: 100%; }
  
  .h1,
  .h2,
  .h3 {
    color: var(--black);
    font-weight: var(--fw-900);
    line-height: 1.3;
  }
  
  .h1 { font-size: var(--fs-1); }
  
  .h2 { font-size: var(--fs-2); }
  
  .h3 {
    font-size: var(--fs-3);
    font-weight: var(--fw-600);
  }
  
  .section-text { line-height: 1.7; }
  
  .btn {
    min-height: 50px;
    color: var(--white-1);
    padding-inline: 25px;
    border-radius: var(--radius-6);
  }
  
  .btn-primary { background-image: var(--gradient-1); }
  
  .btn-secondary { background-image: var(--gradient-2); }
  
  .btn-link {
    display: flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition-1);
  }
  
  .btn-link:is(:hover, :focus) { letter-spacing: 0.3px; }
  
  
  
  
  
  /*-----------------------------------*\
    #HEADER
  \*-----------------------------------*/
  
  .header .btn { display: none; }
  
  .header {
    background-color: var(--white-1);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding-block: 20px;
    z-index: 4;
  }
  
  .header.active {
    position: fixed;
    top: -75px;
    box-shadow: var(--shadow-1);
    animation: slide-in 0.5s var(--cubic-out) forwards;
  }
  
  @keyframes slide-in {
    0% { transform: translateY(0); }
    100% { transform: translateY(75px); }
  }
  
  .header > .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
  }
  
  .logo {
    color: var(--smoky-black);
    font-size: 3.5rem;
    font-weight: var(--fw-700);
    line-height: 1;
  }
  
  .nav-toggle-btn { font-size: 30px; }
  
  .nav-toggle-btn.active .menu-icon,
  .nav-toggle-btn .close-icon { display: none; }
  
  .nav-toggle-btn .menu-icon,
  .nav-toggle-btn.active .close-icon { display: block; }
  
  .navbar {
    position: absolute;
    top: 100%;
    left: 50%;
    width: calc(100% - 30px);
    transform: translateX(-50%);
    background-color: var(--white-1);
    box-shadow: var(--shadow-2);
    overflow: hidden;
    visibility: hidden;
    max-height: 0;
    transition: 0.25s var(--cubic-out);
  }
  
  .navbar.active {
    visibility: visible;
    max-height: 300px;
    transition-duration: 0.35s;
  }
  
  .navbar-item:not(:last-child) { border-block-end: 1px solid var(--alice-blue); }
  
  .navbar-link {
    color: var(--black);
    font-size: var(--fs-4);
    font-weight: var(--fw-500);
    padding: 16px;
    transition: var(--transition-1);
  }
  
  .navbar-link:is(:hover, :focus) { color: var(--winter-sky); }
  
  
  
  
  
  /*-----------------------------------*\
    #HERO
  \*-----------------------------------*/
  
  .hero {
    padding-block-start: calc(73px + var(--section-padding));
    background-color: var(--cultured-1);
  }
  
  .hero-banner {
  /*   background-color: var(--light-gray); */
    border-radius: 50%;
    aspect-ratio: 1 / 0.8;
  }
  
  .hero-banner img {
    border-radius: 50%;
  }
  
  .hero-title { margin-block: 30px 15px; }
  
  .hero-form { margin-block: 20px 30px; }
  
  .input-field {
    background-color: var(--cultured-3);
    padding: 20px 15px;
    border-radius: var(--radius-6);
    margin-block-end: 15px;
  }
  
  .input-field::placeholder { transition: var(--transition-1); }
  
  .input-field:focus::placeholder { opacity: 0; }
  
  .hero-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
  }
  
  .hero-item {
    display: flex;
    align-items: center;
    gap: 5px;
  }
  
  
  
  
  
  /*-----------------------------------*\
    #SERVICE
  \*-----------------------------------*/
  
  .service { background-color: var(--white-1); }
  
  .service :is(.section-title, .section-text) { text-align: center; }
  
  .service .section-text { margin-block: 10px 35px; }
  
  .service-list {
    display: grid;
    gap: 25px;
  }
  
  .service-card {
    border-radius: var(--radius-6);
    overflow: hidden;
    box-shadow: var(--shadow-1);
  }
  
  .service-card .card-banner {
    background-color: var(--light-gray);
    aspect-ratio: 1 / 0.47;
  }
  
  .service-card .card-content { padding: 20px; }
  
  .service-card .card-title { transition: var(--transition-1); }
  
  .service-card .card-title:is(:hover, :focus) { color: var(--winter-sky); }
  
  .service-card .card-text {
    margin-block: 10px 20px;
    line-height: 1.8;
  }
  
  .service-card .btn-link { color: var(--ultramarine); }
  
  
  
  
  
  /*-----------------------------------*\
    #FEATURES
  \*-----------------------------------*/
  
  .features { background-color: var(--white-2); }
  
  .features .section-text { margin-block: 10px 15px; }
  
  .features-content { margin-block-end: 25px; }
  
  .features-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--white-1);
    padding: 15px;
    box-shadow: var(--shadow-3);
    border-radius: var(--radius-6);
  }
  
  .features-item:not(:last-child) { margin-block-end: 15px; }
  
  .features-item .item-title {
    color: var(--black);
    font-size: var(--fs-5);
    font-weight: var(--fw-600);
  }
  
  .features-banner {
    max-width: max-content;
  /*   background-color: var(--light-gray); */
    border-radius: var(--radius-12);
    overflow: hidden;
  }
  
  .features-banner.one {
    aspect-ratio: 1 / 0.83;
    margin-block-end: 25px;
  }
  
  .features-banner.two {
    margin-inline: auto;
    aspect-ratio: 1 / 0.71;
  }
  
  
  
  
  
  /*-----------------------------------*\
    #ABOUT
  \*-----------------------------------*/
  
  .about { text-align: center; }
  
  .about .section-text:first-of-type { margin-block: 5px 30px; }
  
  .about-list {
    display: grid;
    gap: 25px;
  }
  
  .about-card {
    color: var(--white-1);
    padding: 20px;
    border-radius: var(--radius-12);
  }
  
  .about-card-1 { background-image: var(--gradient-3); }
  
  .about-card-2 { background-image: var(--gradient-4); }
  
  .about-card-3 { background-image: var(--gradient-5); }
  
  .about-card-4 { background-image: var(--gradient-6); }
  
  .about-card .card-banner {
    min-width: 150px;
    height: 150px;
    aspect-ratio: 1 / 1;
    background-color: var(--white_50);
    border-radius: 50%;
    display: grid;
    place-items: center;
    margin-inline: auto;
    transition: var(--transition-2);
  }
  
  .about-card:is(:hover, :focus-within) .card-banner { background-color: var(--white-1); }
  
  .about-card .card-title {
    color: var(--white-1);
    margin-block: 20px 10px;
  }
  
  .about-card .card-text {
    line-height: 1.8;
    margin-block-end: 15px;
  }
  
  .about .btn-link { justify-content: center; }
  
  .about .section-text:last-of-type {
    max-width: 50ch;
    margin-inline: auto;
    margin-block-start: 25px;
  }
  
  .about .section-text:last-of-type .btn-link {
    color: var(--blue-violet);
    display: inline-flex;
  }
  
  .about .section-text:last-of-type .btn-link:is(:hover, :focus) {
    color: var(--winter-sky);
    letter-spacing: 0;
  }
  
  
  
  
  
  /*-----------------------------------*\
    #STATS
  \*-----------------------------------*/
  
  .stats { background-color: var(--cultured-2); }
  
  .stats-banner {
    max-width: max-content;
    margin-inline: auto;
    aspect-ratio: 1 / 0.78;
    margin-block-end: 25px;
  }
  
  .stats-list {
    display: grid;
    gap: 25px;
  }
  
  .stats-item {
    position: relative;
    padding-block: 5px;
    padding-inline-start: 15px;
  }
  
  .stats-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    border-radius: 5px;
  }
  
  .stats-item.purple::before { background-color: var(--ultramarine); }
  
  .stats-item.red::before { background-color: var(--winter-sky); }
  
  .stats-item.green::before { background-color: var(--spring-green); }
  
  .stats-item.yellow::before { background-color: var(--dark-orange); }
  
  .stats-item .item-title {
    color: var(--black);
    font-size: 3.5rem;
    font-weight: var(--fw-900);
    margin-block-end: 5px;
  }
  
  .stats-item .item-title .span {
    color: var(--granite-gray);
    font-weight: var(--fw-400);
    display: inline-block;
    font-size: var(--fs-4);
  }
  
  
  
  
  
  /*-----------------------------------*\
    #APP
  \*-----------------------------------*/
  
  .app-content { margin-block-end: 25px; }
  
  .app .section-text { margin-block: 5px 10px; }
  
  .app .btn-group {
    display: flex;
    gap: 15px;
  }
  
  .app .btn {
    min-height: auto;
    padding: 15px;
  }
  
  .app .btn img { margin-block-end: 10px; }
  
  .app .btn .strong {
    margin-block-start: 5px;
    font-weight: var(--fw-600);
  }
  
  .app-banner {
    max-width: max-content;
    margin-inline: auto;
    aspect-ratio: 1 / 0.72;
  }
  
  
  
  
  
  /*-----------------------------------*\
    #SUPPORT
  \*-----------------------------------*/
  
  .support {
    background-image: var(--gradient-2);
    color: var(--white-1);
  }
  
  .support .section-title { color: var(--white-1); }
  
  .support .section-text { margin-block: 10px 15px; }
  
  .support .btn {
    max-width: max-content;
    display: grid;
    place-items: center;
  }
  
  
  
  
  
  /*-----------------------------------*\
    #FOOTER
  \*-----------------------------------*/
  
  .footer-top { background-color: var(--cultured-1); }
  
  .footer-top .container {
    display: grid;
    gap: 25px;
  }
  
  .footer .logo { margin-block-end: 25px; }
  
  .footer-img { max-width: max-content; }
  
  .footer-list-title {
    color: var(--black);
    font-size: var(--fs-3);
    font-weight: var(--fw-600);
    margin-block-end: 20px;
  }
  
  .footer-list > li:not(:last-child) { margin-block-end: 15px; }
  
  .footer-link {
    position: relative;
    max-width: max-content;
    transition: var(--transition-1);
  }
  
  .footer-link::after {
    content: "";
    position: absolute;
    top: 6px;
    left: calc(100% + 10px);
    background-color: var(--ultramarine);
    width: 20px;
    height: 2px;
    transition: var(--transition-1);
    opacity: 0;
  }
  
  .footer-link:is(:hover, :focus) { color: var(--ultramarine); }
  
  .footer-link:is(:hover, :focus)::after { opacity: 1; }
  
  .footer-item {
    display: flex;
    align-items: baseline;
    gap: 5px;
  }
  
  .footer-item .span { color: var(--black); }
  
  .footer-item-link {
    display: inline-block;
    color: var(--granite-gray);
    transition: var(--transition-1);
  }
  
  .footer-item-link:is(:hover, :focus) { color: var(--ultramarine); }
  
  .footer-bottom {
    padding-block: 25px;
    text-align: center;
    line-height: 1.3;
  }
  
  .copyright { margin-block-end: 15px; }
  
  .copyright .span {
    display: inline-block;
    color: var(--winter-sky);
    font-weight: var(--fw-500);
  }
  
  .copyright-link {
    display: inline-block;
    font-weight: var(--fw-600);
    background-image: var(--gradient-3);
    -webkit-text-fill-color: transparent;
    background-clip: text;
    -webkit-background-clip: text;
  }
  
  .footer-bottom-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 5px 20px;
  }
  
  .footer-bottom-link { transition: var(--transition-1); }
  
  .footer-bottom-link:is(:hover, :focus) { color: var(--ultramarine); }
  
  
  
  
  
  /*-----------------------------------*\
    #BACK TO TOP
  \*-----------------------------------*/
  
  .back-top-btn {
    background-color: var(--white-1);
    color: var(--black);
    position: fixed;
    bottom: 10px;
    right: 20px;
    border: 1px solid var(--light-gray);
    font-size: 2.2rem;
    padding: 12px;
    border-radius: 50%;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-1);
    z-index: 4;
  }
  
  .back-top-btn.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(-10px);
  }
  
  
  
  
  
  /*-----------------------------------*\
    #MEDIA QUERIES
  \*-----------------------------------*/
  
  /**
   * responsive for large than 480px screen
   */
  
  @media (min-width: 480px) {
  
    /**
     * REUSED STYLE
     */
  
    .header .btn {
      display: block;
      margin-inline-start: auto;
      min-height: 40px;
      padding-inline: 15px;
    }
  
  }
  
  
  
  
  
  /**
   * responsive for large than 575px screen
   */
  
  @media (min-width: 575px) {
  
    /**
     * REUSED STYLE
     */
  
    .container { 
      max-width: 540px;
      margin-inline: auto;
    }
  
  
  
    /**
     * HERO
     */
  
    .hero-form { position: relative; }
  
    .hero-form .btn {
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
    }
  
  
  
    /**
     * SERVICE, ABOUT, STATS, FOOTER
     */
  
    .service-list,
    .about-list,
    .stats-list,
    .footer-top .container { grid-template-columns: 1fr 1fr; }
  
  
  
    /**
     * ABOUT
     */
  
    .about-card { min-height: 100%; }
  
  
  
    /**
     * APP
     */
  
    .app .btn {
      display: flex;
      align-items: center;
      gap: 15px;
      padding-inline: 25px;
    }
  
    .app .btn img { margin-block-end: 0; }
  
  }
  
  
  
  
  
  /**
   * responsive for large than 768px screen
   */
  
  @media (min-width: 768px) {
  
    /**
     * RESET
     */
  
    body { font-size: 2rem; }
  
  
  
    /**
     * CUSTOM PROPERTY
     */
  
    :root {
  
      /**
       * typography
       */
  
      --fs-1: 5rem;
      --fs-2: 3.5rem;
      --fs-3: 2.5rem;
  
    }
  
  
  
    /**
     * REUSED STYLE
     */
  
    .container { max-width: 720px; }
  
  
  
    /**
     * HEADER
     */
  
    .header .btn {
      font-size: 1.7rem;
      font-weight: var(--fw-500);
      min-height: 45px;
      padding-inline: 25px;
    }
  
  
  
    /**
     * SERVICE
     */
  
    .service-card { --radius-6: 16px; }
  
    .service-card .card-content { padding: 30px; }
  
  
  
    /**
     * FEATURES
     */
  
    .features-item .item-title { --fs-5: 2rem; }
  
    .features-banner.two {
      margin-inline: auto 0;
      margin-block-start: -180px;
    }
  
  
  
    /**
     * STATS
     */
  
    .stats-list { padding-inline: 60px; }
  
    .stats-item { padding-inline-start: 20px; }
  
    .stats-item .item-title { font-size: 4rem; }
  
  
  
    /**
     * APP
     */
  
    .app .btn { padding: 20px 30px; }
  
    .app-content .span { font-size: 1.5rem; }
  
    .app-content .strong { font-size: 2rem; }
  
  }
  
  
  
  
  
  /**
   * responsive for large than 992px screen
   */
  
  @media (min-width: 992px) {
  
    /**
     * CUSTOM PROPERTY
     */
  
    :root {
  
      /**
       * typography
       */
  
      --fs-2: 4rem;
      --fs-3: 2.9rem;
  
      /**
       * spacing
       */
  
      --section-padding: 100px;
  
    }
  
  
  
    /**
     * REUSED STYLE
     */
  
    .container { max-width: 960px; }
  
    :is(.service, .about, .app) .section-text {
      max-width: 55ch;
      margin-inline: auto;
    }
  
  
  
    /**
     * HEADER
     */
  
    .nav-toggle-btn { display: none; }
  
    .navbar,
    .navbar.active { all: unset; }
  
    .navbar-list {
      display: flex;
      gap: 5px;
    }
  
    .navbar-item:not(:last-child) { border-block-end: none; }
  
    .navbar-link { --fs-4: 2rem; }
  
    .header .btn {
      margin-inline-start: 0;
      min-height: 50px;
      padding-inline: 40px;
    }
  
  
  
    /**
     * HERO
     */
  
    .hero .container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: center;
      gap: 50px;
    }
  
    .hero-title { margin-block-start: 0; }
  
  
  
    /**
     * SERVICE
     */
  
    .service-list {
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
  
  
  
    /**
     * FEATURES
     */
  
    .features .container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: center;
      gap: 25px;
    }
  
    .features-content { margin-block-end: 0; }
  
    .features-item { padding: 20px; }
  
    .features-item:not(:last-child) { margin-block-end: 20px; }
  
    .features-item .item-title { --fs-5: 2.4rem; }
  
  
  
    /**
     * ABOUT
     */
  
    .about-list { gap: 30px; }
  
    .about-card { padding: 40px; }
  
  
  
    /**
     * STATS
     */
  
    .stats .container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: flex-start;
    }
  
    .stats-banner { margin-block-end: 0; }
  
    .stats-list { grid-template-columns: 1fr; }
  
    .stats-item:nth-child(even) { margin-inline-start: auto; }
  
    .stats-item .item-title { font-size: 4.5rem; }
  
    .stats-text { font-size: 2.2rem; }
  
  
  
    /**
     * APP
     */
  
    .app :is(.section-title, .section-text) { text-align: center; }
  
    .app .btn-group { justify-content: center; }
  
  
  
    /**
     * SUPPORT
     */
  
    .support .container {
      display: grid;
      grid-template-columns: 1fr 0.5fr;
      justify-items: self-end;
      align-items: center;
    }
  
  
  
    /**
     * FOOTER
     */
  
    .footer .container { grid-template-columns: 1fr 0.8fr 0.8fr 1fr; }
  
    .footer-list-title { margin-block-end: 30px; }
  
    .footer-list > li:not(:last-child) { margin-block-end: 25px;}
  
    .footer-bottom { padding-block: 30px; }
  
    .footer-bottom .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
  
    .copyright { margin-block-end: 0; }
  
  }
  
  
  
  
  
  /**
   * responsive for large than 1200px screen
   */
  
  @media (min-width: 1200px) {
  
    /**
     * CUSTOM PROPERTY
     */
  
    :root {
  
      /**
       * typography
       */
  
      --fs-1: 6rem;
      --fs-2: 5rem;
  
    }
  
  
  
    /**
     * REUSED STYLE
     */
  
    .container { max-width: 1140px; }
  
  
  
    /**
     * FEATURES
     */
  
    .features .container {
      grid-template-columns: 1fr max-content;
      gap: 70px;
    }
  
  
  
    /**
     * ABOUT
     */
  
    .about-card {
      display: flex;
      align-items: center;
      gap: 30px;
      text-align: left;
    }
  
    .about-card .card-title { margin-block-start: 0; }
  
    .about .btn-link { justify-content: flex-start; }
  
  
  
    /**
     * APP
     */
  
    .app .container {
      display: grid;
      grid-template-columns: 0.7fr 1fr;
      align-items: center;
      gap: 25px;
    }
  
    .app-content { margin-block-end: 0; }
  
    .app :is(.section-title, .section-text) { text-align: left; }
  
    .app .section-title { --fs-2: 4rem; }
  
    .app .btn-group { justify-content: flex-start; }
  
  }