* {
  margin: 0;
  padding: 0;
  font-size: 16px;
}
header,
#sec1,
#sec2,
#sec3,
#sec4,
#sec5,
footer {
  text-align: center;
}

/* header first */
header {
  img {
    width: 100%;
  }
  .dispaly-in-desktop {
    display: block;
  }
  .dispaly-in-mobile {
    display: none;
  }

  background-color: rgb(5, 50, 180);
}

/* header end */

/* sec1 first */
#sec1 {
  background-image: linear-gradient(
    180deg,
    rgb(0, 130, 255),
    rgb(140, 200, 255) 100%
  );

  h1 {
    color: rgb(255, 255, 0);
    font-size: 2.5rem;
    padding-bottom: 2rem;
    padding-left: 5.5vw;
    transform: skew(-10deg, 0);
    width: 90vw;
  }
  h2 {
    font-size: 2rem;
    color: rgb(255, 255, 255);
    transform: skew(-10deg, 0);
    padding-top: 3rem;
    padding-left: 5.5vw;
    width: 90vw;
  }
}
/* sec1 end */

/* sec2 first */
#sec2 {
  background-color: rgb(140, 200, 255);

  h1 {
    font-size: 2rem;
    padding: 1rem 0;
    color: transparent;
    background-image: linear-gradient(180deg, #ffffff, rgb(255, 240, 0) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    display: flex;
    justify-content: center;

    p {
      font-size: 2rem;
      color: transparent;
      background-image: linear-gradient(180deg, #ffffff, rgb(255, 240, 0) 100%);
      -webkit-background-clip: text;
      background-clip: text;
      animation: ani 2s infinite;
      margin-left: 2rem;
    }
  }

  .coupon {
    padding-bottom: 3rem;
    p {
      color: rgb(5, 50, 180);
      font-size: 2rem;
      font-weight: bold;
    }
    img {
      width: 80vw;
      margin: 10px;
    }
    img:hover {
      box-shadow: 0 0.2rem 4rem rgb(5, 50, 180);
    }
    img:active {
      transform: scale(1.05);
      transition: all 0.1s;
    }
  }
}
.title {
  position: relative;
}

@keyframes ani {
  0% {
    scale: 1;
  }
  50% {
    scale: 1.2;
  }
  100% {
    scale: 1;
  }
}

/* sec2 end */

/* sec3 first */
#sec3 {
  background-image: url(./images/bg_1.png),
    linear-gradient(180deg, rgb(5, 50, 180), rgb(90, 150, 255) 100%);
  padding-bottom: 1rem;
  h1 {
    font-size: 2rem;
    padding: 3rem 0 2rem 0;
    color: transparent;
    background-image: linear-gradient(180deg, #ffffff, rgb(255, 240, 0) 100%);
    -webkit-background-clip: text;
    background-clip: text;
  }
  .card_area {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    .card {
      width: 28vw;
      color: white;
      position: relative;
      margin: 0.8rem;
      background-image: linear-gradient(
        180deg,
        rgb(0, 0, 0),
        rgb(0, 20, 140) 100%
      );
      #myVideo {
        width: 28vw;
      }
      .name {
        transform: skew(-10deg, 0);
        position: relative;
        font-weight: bold;
        .n1 {
          width: 120px;
          background-color: rgb(130, 50, 255);
          position: absolute;
          padding: 0.5rem 0;
        }
        .n2 {
          width: 130px;
          background-color: rgb(110, 215, 255);
          position: absolute;
          right: -8px;
          padding: 0.5rem 0;
          color: rgb(5, 50, 180);
        }
      }
      .text p {
        height: 8rem;
        padding: 3rem 1rem 0 1rem;
      }
    }
    .card_footer {
      img {
        width: 26vw;
      }
    }
  }
  .card:hover {
    box-shadow: 0 0.2rem 4rem rgb(210, 200, 240);
    animation: ani2 0.5s infinite;
  }
}
@keyframes ani2 {
  0% {
    top: 1rem;
  }
  50% {
    top: 0;
  }
  100% {
    top: 1rem;
  }
}
/* sec3 end */

/* sec4 first */
#sec4 {
  background-color: rgb(5, 50, 180);
  .area {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    padding: 2rem;
    .box {
      color: rgb(255, 224, 124);
      width: 100%;
      padding: 8px 12px;
      margin: 0 36vw 2rem 36vw;
      background: linear-gradient(
        0deg,
        #2b2b2b 0%,
        #4e4e4e 50%,
        #3b3b3b 90%,
        #4e4e4e 100%
      );
      border-radius: 6px;
      border: 2px solid #323436;
      p {
        font-size: 1.5rem;
      }
    }
  }
}

/* sec4 end */

/* sec5 first */
#sec5 {
  background-color: rgb(5, 50, 180);
  iframe {
    width: 80vw;
    height: 80vh;
    margin: 1.5rem;
  }
}
/* sec5 end */

/* footer first */
footer {
  font-size: 15px;
  padding: 1.5rem 0;
  color: white;
  background-color: rgb(0, 20, 140);
}
/* footer end */

@media screen and (max-width: 1040px) {
  #sec3 {
    .card_area {
      .card {
        width: 42vw;
        #myVideo {
          width: 42vw;
        }
      }
      .card_footer {
        img {
          width: 26vw;
        }
      }
    }
  }
  #sec4 {
    padding: 2rem;
    .area {
      .box {
        margin: 0 10vw 2rem 10vw;
      }
    }
  }
}

@media screen and (max-width: 768px) {
  * {
    font-size: 14px;
  }

  /* header first */
  header {
    .dispaly-in-desktop {
      display: none;
    }
    .dispaly-in-mobile {
      display: block;
    }
  }
  /* header end */

  #sec2 {
    .coupon {
      img {
        width: 90vw;
      }
    }
  }

  #sec5 {
    iframe {
      width: 90vw;
      height: 45vh;
      margin: 1.5rem 0;
    }
  }
}

@media screen and (max-width: 600px) {
  #sec3 {
    .card_area {
      .card {
        width: 80vw;
        #myVideo {
          width: 80vw;
        }
      }
      .card_footer {
        img {
          width: 70vw;
        }
      }
    }
  }

  #sec4 {
    padding: 0;
    .area {
      .flipdown__theme-dark {
        width: 80vw;
      }
    }
  }
}