:root {
  --background-color: #F2F2F7;
  --text-color: #232424;
  --card-background-color: #E5E5EA;

  --side-padding: 80px;

  --iphone-bezel-aspect-ratio: calc(946 / 1864);

  @media screen and (max-width: 768px) {
    --side-padding: 20px;
  }
}

html,
body {
  display: flex;
  justify-content: center;
  height: 100%;
  width: 100%;
  overflow-y: auto;
  margin: 0;
  padding: 0;
  font-size: 16px;
  line-height: 1.5;
  color: #333;
  background-color: var(--background-color);
  transition-property: background-color;
  transition-duration: 1s;
  transition-timing-function: ease-in-out;
}

body, input, button, select, textarea {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  color: var(--text-color);
}

/**
* Fix for a bug in Safari where the video has
* a slight gray border on hover.
* Ref: https://stackoverflow.com/questions/52508598/html5-video-element-on-iphone-has-border
*/
video {
  isolation: isolate;
  mask-image: radial-gradient(white,white);
}

.app {
  height: 100%;
  width: 100%;
  max-width: 1000px;
  overflow-x: clip;
}

.header {
  width: 100%;
  height: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 30px;
  padding: 0 var(--side-padding);
  box-sizing: border-box;

  .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 900;
    font-size: 22px;

    .icon {
      width: 38px;
      height: 38px;
    }
  }

  nav {
    ul {
      display: flex;
      gap: 28px;

      li {
        list-style: none;

        a {
          text-decoration: none;
          color: var(--text-color);
          font-size: 18px;
          font-weight: 500;
        }
      }
    }
  }
}

@media screen and (max-width: 768px) {
  .header {
    margin-top: 8px;

    .logo {
      font-size: 18px;

      .icon {
        width: 32px;
        height: 32px;
      }
    }

    nav {
      ul {
        gap: 20px;

        li {
          &.press-kit-item{
            display: none;
          }

          a {
            font-size: 14px;
          }
        }
      }
    }
  }
}


.intro-section {
  display: grid;
  grid-template-columns: 0.48fr 0.52fr;
  grid-template-rows: fit-content(100%);
  grid-template-areas: "description widget";
  gap: 0;
  margin-top: 70px;

  .description {
    grid-area: description;
    position: relative;
    padding-left: 40px;

    .anything-video {
      width: 260px;
      height: 187.96px;
      margin-bottom: 10px;
    }

    .anything-video-mobile {
      display: none;
      width: 280px;
      height: 202.41px;
      margin-bottom: 10px;
    }

    p {
      font-size: 20px;
      font-weight: 400;
      line-height: 140%;
      padding-left: 40px;
      padding-right: 60px;
      margin-top: 0;
    }
  }

  .widget {
    grid-area: widget;
    display: flex;
    justify-content: center;
    align-items: start;
    padding: 40px 20px 0 35px;
    pointer-events: none;

    .widget-video {
      width: 100%;
      aspect-ratio: calc(874 / 532);
      pointer-events: none;
    }
  }
}

@media screen and (max-width: 768px) {
  .intro-section {
    grid-template-columns: 1fr;
    grid-template-rows: fit-content(100%) fit-content(100%);
    grid-template-areas:
      "description"
      "widget";
    justify-items: center;
    margin-top: 40px;

    .description {
      padding: 0 var(--side-padding);
      display: flex;
      flex-direction: column;
      align-items: center;

      .anything-video {
        display: none;
      }

      .anything-video-mobile {
        display: block;
      }

      p {
        padding: 0 16px;
        max-width: 400px;
        text-align: center;
      }
    }

    .widget {
      width: 100%;
      max-width: 450px;
      padding: 0;
    }
  }
}

.subscribe-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 80px;

  .subscribe-title {
    font-size: 20px;
    font-weight: 900;
    text-align: center;
    margin-bottom: 0;
  }
  .subscribe-caption {
    font-size: 20px;
    font-weight: 400;
    text-align: center;
  }

  form {
    position: relative;
    margin-top: 18px;

    .controls {
      display: flex;
      gap: 12px;
      align-items: center;
      transition-property: transform, opacity;
      transition-duration: 0.3s;
      transition-timing-function: cubic-bezier(0.64, 0.57, 0.67, 1.53);

      input {
        height: 100%;
        width: 270px;
        background-color: #FFFFFF;
        border: 1.5px solid #C7C7CC;
        border-radius: 12px;
        padding: 16px;
        font-size: 16px;
      }

      button {
        height: 100%;
        background-color: #232424;
        color: #FFFFFF;
        padding: 16px 20px;
        border: 0;
        border-radius: 12px;
        font-size: 16px;
        font-weight: 700;
        letter-spacing: 0.4px;

        &:active {
          opacity: 0.8;
        }
      }

      &.hidden {
        opacity: 0;
        transform: scale(0);
      }
    }


    .confirmation-check {
      position: absolute;
      width: 60px;
      aspect-ratio: 1;
      top: -5px;
      left: calc(50% - 30px);
      opacity: 0;
      transform: scale(0);
      transition-property: transform, opacity;
      transition-duration: 0.3s;
      transition-timing-function: cubic-bezier(0.64, 0.57, 0.67, 1.53);

      &.visible {
        opacity: 1;
        transform: scale(1);
      }
    }
  }
}

@media screen and (max-width: 768px) {
  .subscribe-section {
    padding: 0 var(--side-padding);
    margin-top: 60px;

    form {
      width: 100%;

      .controls {
        flex-direction: column;
        align-items: stretch;
        padding: 0 20px;

        input {
          width: 100%;
        }
      }
    }
  }
}

.download-section-top {
  padding: 0 var(--side-padding);
  margin-top: 20px;

  > a:link,
  > a:visited {
    display: block;
    text-decoration: none;
    width: 180px;

    img {
      width: 100%;
      height: auto;
    }
  }
}

@media screen and (max-width: 768px) {
  .download-section-top {
    margin-top: 48px;
    display: flex;
    justify-content: center;
  }
}

.iphone-frame {
  position: relative;
  width: 100%;
  height: calc(var(--iphone-bezel-width) / var(--iphone-bezel-aspect-ratio));

  .iphone-shadow {
    position: absolute;
    width: 126.5%;
    top: -2.55%;
    left: -7.3%;
  }

  .iphone-bezel {
    position: absolute;
    width: 100%;
  }

  .iphone-content {
    position: absolute;
    width: 83.4%;
    aspect-ratio: 0.4618055556;
    left: 8.3%;
    top: 4.2%;
    overflow: hidden;

    .demo-video {
      width: 100%;
      border-radius: 40px;
      opacity: 0;
      transform: scale(0.98);
      transition-property: opacity, transform;
      transition-duration: 1s;
      transition-timing-function: ease-in-out;

      &.visible {
        opacity: 1;
        transform: scale(1);
      }
    }

    .demo-image {
      width: 100%;
      border-radius: 34px;
    }

    .spinner {
      display: block;
      position: absolute;
      top: calc(50% - 12px);
      left: calc(50% - 12px);
      transition-property: opacity, display, transform;
      transition-duration: 0.3s;
      transition-timing-function: ease-in-out;
      transition-behavior: allow-discrete;

      &.hidden {
        opacity: 0;
        display: none;
        transform: scale(0.5)
      }
    }
  }
}

.steps-section {
  --iphone-bezel-width: 340px;

  padding: 0 var(--side-padding);
  margin-top: 120px;
  display: grid;
  grid-template-columns: var(--iphone-bezel-width) auto;
  grid-template-rows: auto min(calc(var(--iphone-bezel-width) / var(--iphone-bezel-aspect-ratio)));
  grid-template-areas:
    "video title"
    "video steps";
  column-gap: 60px;
  box-sizing: border-box;

  .iphone-frame {
    grid-area: video;
  }

  .title {
    grid-area: title;
    margin: 0;
    font-size: 38px;
    font-weight: 900;
    line-height: 120%;
    padding-top: 18px;
  }

  .step-list {
    grid-area: steps;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 40px;

    .step {
      position: relative;
      display: flex;
      flex-direction: column;
      gap: 14px;
      background-color: var(--card-background-color);
      border-radius: 16px;
      padding: 20px 34px 34px 20px;

      .step-icon {
        width: 24px;
        height: 24px;

        &.bulb {
          width: 27px;
          height: 27px;
        }
      }

      .step-description {
        font-size: 18px;
        line-height: 125%;
        margin: 0;
      }

      .step-arrow {
        position: absolute;
        z-index: 1;
        bottom: -45px;
        right: -72px;
        width: 88px;
        height: 76px;
      }
    }
  }
}

@media screen and (max-width: 900px) {
  .steps-section {
    grid-template-columns: auto var(--iphone-bezel-width) auto;
    grid-template-rows: auto min(calc(var(--iphone-bezel-width) / var(--iphone-bezel-aspect-ratio))) auto;
    grid-template-areas:
      "title title title"
      ". video ."
      "steps steps steps";
    column-gap: 0;
    row-gap: 0;

    .title {
      text-align: center;
      margin-bottom: 30px;
    }
  }
}

@media screen and (max-width: 768px) {
  .steps-section {
    row-gap: 0;
    margin-top: 100px;

    .title {
      text-align: start;
      padding-left: 33px;
      margin-bottom: 20px;
    }

    .step-list {
      .step {
        .step-arrow {
          right: -32px;
        }
      }
    }
  }
}

.amounts-section {
  --iphone-bezel-width: 340px;

  display: grid;
  grid-template-columns: auto var(--iphone-bezel-width);
  grid-template-rows: auto min(calc(var(--iphone-bezel-width) / var(--iphone-bezel-aspect-ratio)));
  grid-template-areas:
    "info info"
    "unit-grid iphone";
  column-gap: 60px;
  margin-top: 120px;
  padding: 0 var(--side-padding);

  .info {
    grid-area: info;

    .title {
      font-size: 68px;
      font-weight: 900;
      line-height: 100%;
      color: #8E8E93;
      margin: 0;
      margin-bottom: 6px;
    }

    .description {
      font-size: 38px;
      font-weight: 900;
      line-height: 115%;
      margin: 0;
      max-width: 630px;
    }
  }

  .unit-grid {
    grid-area: unit-grid;
    margin-top: 70px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: repeat(4, 70px);
    column-gap: 28px;
    row-gap: 24px;

    .unit {
      background-color: var(--card-background-color);
      padding: 18px 28px 18px 20px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      gap: 10px;

      .unit-icon {
        width: 24px;
        height: 24px;
      }

      .unit-name {
        font-size: 18px;
        font-weight: 500;
      }
    }
  }

  .iphone {
    grid-area: iphone;
  }
}

@media screen and (max-width: 900px) {
  .amounts-section {
    --iphone-bezel-width: 280px;

    column-gap: 30px;

    .unit-grid {
      grid-template-rows: repeat(4, 60px);
      column-gap: 18px;
      row-gap: 16px;

      .unit {
        padding: 12px 20px 12px 18px;
        line-height: 115%;

        .unit-icon {
          width: 20px;
          height: 20px;
        }

        .unit-name {
          font-size: 16px;
          font-weight: 500;
        }
      }
    }

    .iphone {
      .iphone-frame {
        .iphone-content {
          .demo-video {
            border-radius: 34px;
          }
        }
      }
    }
  }
}

@media screen and (max-width: 768px) {
  .amounts-section {
    grid-template-columns: 100%;
    grid-template-rows: auto min(calc(var(--iphone-bezel-width) / var(--iphone-bezel-aspect-ratio))) auto;
    grid-template-areas:
      "info"
      "iphone"
      "unit-grid";
    justify-items: center;
    margin-top: 100px;

    .info {
      margin-bottom: 20px;

      .title {
        font-size: 54px;
      }
    }

    .iphone {
      width: var(--iphone-bezel-width);
    }

    .unit-grid {
      margin-top: 30px;
    }

    .iphone {
      .iphone-frame {
        .iphone-content {
          .demo-video {
            border-radius: 32px;
          }
        }
      }
    }
  }
}

.widgets-section-padding-container {
  padding: 0 var(--side-padding);
  margin-top: 120px;
}

.widgets-section {
  --iphone-bezel-width: 400px;

  display: grid;
  grid-template-columns: 1.3fr 1fr;
  grid-template-rows: auto;
  grid-template-areas:
    "iphone info";
  column-gap: 0;
  justify-items: center;
  background-color: var(--card-background-color);
  border-radius: 32px;
  overflow: clip;
  padding: 30px 30px 30px 10px;
  box-shadow: inset 0px -4px 4px 0px rgba(46, 46, 56, 0.03);

  .info {
    grid-area: info;

    .title {
      font-size: 38px;
      font-weight: 900;
      margin-top: 40px;
      margin-bottom: 8px;
    }

    .description {
      font-size: 20px;
      font-weight: 400;
      line-height: 140%;
      max-width: 300px;
      margin: 0;
    }
  }

  .iphone {
    grid-area: iphone;
    width: var(--iphone-bezel-width);
    height: 300px;

    .iphone-frame {
      .iphone-content {
        .spinner {
          top: calc(26% - 12px);
        }
      }
    }
  }
}

@media screen and (max-width: 900px) {
  .widgets-section-padding-container {
    margin-top: 100px;
  }

  .widgets-section {
    --iphone-bezel-width: 300px;

    .info {
      .description {
        font-size: 18px;
        max-width: 230px;
      }
    }

    .iphone {
      height: 260px;

      .iphone-frame {
        .iphone-content {
          .demo-video {
            border-radius: 32px;
          }
        }
      }
    }
  }
}

@media screen and (max-width: 768px) {
  .widgets-section-padding-container {
    padding: 0;
  }

  .widgets-section {
    --iphone-bezel-width: 330px;

    grid-template-columns: 100%;
    grid-template-rows: auto auto;
    grid-template-areas:
      "info"
      "iphone";
    padding: 10px;
    row-gap: 20px;
    border-radius: 0;

    .info {
      .title {
        margin-top: 30px;
      }

      .description {
        max-width: 260px;
      }
    }
  }
}

.values-section {
  padding: 0 var(--side-padding);
  margin-top: 120px;

  >.title {
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 24px;
    line-height: 115%;
  }

  .value-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    column-gap: 38px;

    .value {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 14px;
      background-color: var(--card-background-color);
      border-radius: 14px;
      text-align: center;
      padding: 32px 32px 34px 32px;

      .icon {
        height: 28px;
        width: auto;
      }

      .title {
        font-size: 16px;
        font-weight: 900;
      }

      .description {
        font-size: 16px;
        font-weight: 400;
      }
    }
  }
}

@media screen and (max-width: 900px) {
  .values-section {
    .value-list {
      column-gap: 24px;

      .value {
        padding: 22px 18px 24px 18px;
      }
    }
  }
}

@media screen and (max-width: 768px) {
  .values-section {
    .value-list {
      grid-template-columns: 100%;
      grid-template-rows: repeat(3, auto);
      row-gap: 24px;

      .value {
        padding: 28px 65px 32px 65px;
      }
    }
  }
}


.dark-theme-section-padding-container {
  padding: 0 var(--side-padding);
  margin-top: 120px;
}

.dark-theme-section {
  --iphone-bezel-width: 380px;

  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto 150px auto;
  grid-template-areas:
    "dark-theme-title iphone-bottom"
    "iphone-top       iphone-bottom"
    "iphone-top       of-course-title";
  gap: 0;
  justify-items: center;
  overflow: clip;
  background-image: url('https://checker-assets.nyc3.cdn.digitaloceanspaces.com/star_sky.png');
  background-clip: padding-box;
  background-size: cover;
  background-repeat: no-repeat;
  border-radius: 32px;
  padding: 0 20px;

  .dark-theme-title,
  .of-course-title {
    font-size: 38px;
    font-weight: 900;
    color: transparent;
    align-self: center;
    background: linear-gradient(90deg, #D5E8F2 0%, #A1C2D4 100%);
    background-clip: text;
  }

  .dark-theme-title {
    grid-area: dark-theme-title;
    padding-top: 28px
  }

  .of-course-title {
    grid-area: of-course-title;
    padding-bottom: 28px
  }

  .iphone-top,
  .iphone-bottom {
    width: var(--iphone-bezel-width);
    height: 300px;
  }

  .iphone-top {
    grid-area: iphone-top;
  }

  .iphone-bottom {
    display: flex;
    align-items: end;
    grid-area: iphone-bottom;
  }
}

@media screen and (max-width: 900px) {
  .dark-theme-section {
    --iphone-bezel-width: 300px;
  }
}

@media screen and (max-width: 768px) {
  .dark-theme-section-padding-container {
    padding: 0;
  }

  .dark-theme-section {
    --iphone-bezel-width: 300px;

    grid-template-columns: 100%;
    grid-template-rows: auto min(calc(var(--iphone-bezel-width) / var(--iphone-bezel-aspect-ratio))) auto;
    grid-template-areas:
      "dark-theme-title"
      "iphone-top"
      "of-course-title";
    row-gap: 20px;
    padding: 20px 0;
    border-radius: 0;

    .iphone-bottom {
      display: none;
    }
  }
}

.roadmap-section {
  padding: 0 var(--side-padding);
  margin-top: 120px;
  position: relative;

  .title {
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 24px;
    line-height: 115%;
  }

  .feature-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(4, auto);
    grid-auto-flow: column;
    column-gap: 30px;
    row-gap: 20px;
    mask-image: linear-gradient(360deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 1) 40%);

    .feature {
      display: flex;
      align-items: center;
      gap: 10px;

      .checkbox {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        background-color: #FFFFFF;
        border-radius: 100%;
        border: 1px solid #E5E5EA;
        flex-grow: 0;
        flex-shrink: 0;

        .checkmark {
          display: none;
          width: 14px;
          height: auto;
        }

        &.done {
          background-color: #534FD2;

          .checkmark {
            display: block;
          }
        }
      }

      .feature-title {
        font-size: 16px;
        font-weight: 400;
      }
    }
  }
}

@media screen and (max-width: 768px) {
  .roadmap-section {
    .feature-list {
      grid-template-columns: 100%;
      grid-template-rows: repeat(12, auto);
      grid-auto-flow: row;
      row-gap: 20px;
    }
  }
}

.download-section-bottom {
  padding: 0 var(--side-padding);
  margin-top: 120px;
  display: flex;
  justify-content: center;

  > a:link,
  > a:visited {
    display: block;
    text-decoration: none;
    width: 180px;

    img {
      width: 100%;
      height: auto;
    }
  }
}

@media screen and (max-width: 768px) {
  .download-section-bottom {
    margin-top: 100px;
  }
}

.questions-section {
  padding: 0 var(--side-padding);
  margin-top: 120px;
  position: relative;

  .title {
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 24px;
    line-height: 115%;
  }

  .question-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 30px;

    .question {
      .question-title {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 6px;
      }

      .question-answer {
        font-size: 18px;
        font-weight: 400;
      }
    }
  }

  .ask-question:link,
  .ask-question:visited {
    text-decoration: none;
    color: #007AFF;
  }
}

.footer-padding-container {
  padding: 0 var(--side-padding);
  margin-top: 100px;
}

.footer {
  display: grid;
  grid-template-columns: auto auto auto;
  grid-template-rows: auto;
  grid-template-areas: "link-list . signature";
  background-color: var(--card-background-color);
  border-top-left-radius: 32px;
  border-top-right-radius: 32px;
  padding: 48px 38px 40px 38px;

  .link-list {
    grid-area: link-list;
    display: grid;
    grid-template-columns: repeat(4, auto);
    grid-template-rows: auto;
    gap: 20px;

    .link:link,
    .link:visited {
      font-size: 16px;
      font-weight: 600;
      text-decoration: none;
      color: #8E8E93;
    }
  }

  .signature {
    grid-area: signature;
    font-size: 16px;
    font-weight: 400;
    text-align: end;
    color: #8E8E93;
  }
}

@media screen and (max-width: 900px) {
  .footer {
    grid-template-columns: 100%;
    grid-template-rows: repeat(2, auto);
    grid-template-areas:
      "link-list"
      "signature";
    justify-items: center;
    row-gap: 30px;

    .signature {
      text-align: center;
    }
  }
}

@media screen and (max-width: 768px) {
  .footer-padding-container {
    padding: 0;
  }

  .footer {
    border-radius: 0;
    justify-items: start;
    row-gap: 34px;
    padding: 34px var(--side-padding) 40px var(--side-padding);

    .link-list {
      grid-template-columns: auto;
      grid-template-rows: repeat(4, auto);
      justify-items: start;
      row-gap: 10px;
    }


  }
}