:root {
  --planner-bg: radial-gradient(1200px 600px at 5% 10%, #eaf4ff 0%, #ffffff 50%, #f7f7ff 100%);
  --planner-ar: 4 / 5;
}

html, body {
  height: 100%;
}

body {
  background: var(--planner-bg);
}

html body {
  padding-top: 0;
}

.planner-wrap {
  aspect-ratio: var(--planner-ar);
  width: min(100vw, calc(100vh * var(--planner-ar)));
  max-width: 960px;
  height: auto;
}

.card,
.card-body {
  height: 100%;
}

.card-header {
  padding: 2rem 2rem 1rem;
}

.card-body {
  padding: 2rem;
  overflow: hidden;
}

#calendar-form .form-control,
#calendar-form .form-select {
  border-radius: 1rem;
  border: 1px solid rgba(13, 110, 253, 0.15);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

#calendar-form .form-control-lg,
#calendar-form .form-select-lg {
  padding: 0.9rem 1.1rem;
}

#generate-btn {
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(13, 110, 253, 0.25);
}

#generate-btn:disabled {
  box-shadow: none;
}

#feedback {
  width: 100%;
}

.planner-summary {
  padding: 1.25rem;
  background: rgba(13, 110, 253, 0.05);
  border-radius: 1.25rem;
  flex: 1;
  overflow-y: auto;
}

.planner-summary i {
  margin-top: 0.2rem;
}

@media (max-width: 575.98px) {
  .planner-wrap {
    width: 100vw;
    height: 100vh;
    max-width: none;
    aspect-ratio: auto;
  }

  .card-header {
    padding: 1.5rem 1.5rem 1rem;
  }

  .card-body {
    padding: 1.5rem;
  }

  #generate-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (min-width: 576px) and (max-width: 991.98px) {
  :root {
    --planner-ar: 5 / 6;
  }
}

@media (min-width: 992px) {
  :root {
    --planner-ar: 4 / 5;
  }
}