.form {
  position: relative;
  width: 463px;
  height: auto;
  margin-left: 1px;
  background: var(--background-dark);
  padding: 13px 30px;
  border: 1px solid var(--border-dark);
  border-top: none;
  border-bottom: none;
  z-index: 2;
}

.top,
.top--dark,
.top--light,
.bottom,
.bottom--dark,
.bottom--light {
  position: relative;
}

.top {
  top: 0;
  left: 0.5px;
  width: 463px;
  height: 17px;
  background: var(--border-light);
  clip-path: polygon(4% 0, 100% 0%, 100% 100%, 0 100%);
}

.top--inside {
  margin-top: 1px;
  margin-left: 0;
  width: 462px;
  height: 17px;
  background: var(--background-light);
  clip-path: polygon(4% 0, 100% 0%, 100% 100%, 0 100%);
}

.top--dark {
  background: var(--border-dark);
}

.top--inside--dark {
  background: var(--background-dark);
}

.bottom {
  top: 0;
  left: 0.5px;
  width: 463px;
  height: 93px;
  background: var(--border-light);
  clip-path: polygon(0 0, 100% 0, 96% 17%, 44% 17%, 27% 100%, 0 100%)
}

.bottom--inside {
  margin-top: -1px;
  margin-left: 1px;
  width: 461.5px;
  height: 93px;
  background: var(--background-light);
  clip-path: polygon(0 0, 100% 0, 96% 17%, 43.8% 17%, 26.8% 100%, 0 100%)
}

.bottom--dark {
  background: var(--border-dark);
}

.bottom--inside--dark {
  background: var(--background-dark);
}

.form--dark {
  background: var(--background-dark);
  border-color: var(--border-dark);
}

.form--light {
  background: var(--background-light);
  border-color: var(--border-light);
}

@media (max-width: 470px) {
  .form,
  .top,
  .bottom {
    width: 320px;
  }

  .top {
    clip-path: polygon(5% 0, 100% 0%, 100% 100%, 0 100%);
  }

  .top--inside {
    width: 318.5px;
    clip-path: polygon(5% 0, 100% 0%, 100% 100%, 0 100%);
  }

  .bottom {
    height: 58px;
    background: var(--background-light);
    border: 1px solid var(--border-light);
    border-top: none;
    display: none;
  }

  .bottom--dark {
    height: 58px;
    background: var(--background-dark);
    border-color: var(--border-dark);
    border-top: none;
  }

  .form {
    padding: 2px 20px 20px;
  }

  .form--dark {
    border-bottom: 1px solid var(--border-dark);
  }

  .form--light {
    border-bottom: 1px solid var(--border-light);
  }
}