* {
  scroll-behavior: smooth;
  touch-action: manipulation;
  letter-spacing: 0.1rem;
  font-size: 0.9rem;
  transition: background-color 0.5s ease;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

:root {
  --app_light_blue: #d5e7f2;
  --app_dark_blue: #032ca6;
  --app_grey: #95acbf;
  --app_black: rgb(20, 20, 20);
  --app_black_selected: rgb(50, 50, 50);
  --app_white: white;
  --app_white_light: grey;
  --app_font: "Orbitron", sans-serif;
  --box_size: 20rem;
  --box_size_small: 8rem;
  --box_size_large: 28rem;
  --box_radius: 1rem;
  /* --box_shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); */
  --box_shadow: none;
  --transition_selected: background-color 0.2s ease;
  --transition_selected_icon: fill 0.3s ease;
  --transition_selected_text: color 0.2s ease;
}

html {
  height: 100%;
}

body {
  margin: 0;
  height: 100%;
}

body.dark {
  background-color: black;
}

button {
  font-size: 1rem;
  padding: 0;
  cursor: pointer;
  user-select: none;
  border: none;
}

.content {
  display: none;
  flex-direction: column;
  /* flex: 1; */
  padding: 1rem 1rem 7rem 1rem;
  gap: 1rem;
  max-width: var(--box_size);
  margin: auto;
  /* margin: 0; */
}

.content.displayed {
  display: flex;
}

@keyframes scaleIn {
  from {
    transform: scale(99%);
  }
  to {
    transform: scale(100%);
  }
}

.angle {
  display: flex;
  flex-direction: column;
  /* justify-content: center; */
  align-items: center;
  background-color: var(--app_light_blue);
  box-shadow: var(--box_shadow);
  border-radius: var(--box_radius);
  justify-content: flex-start;
  animation: scaleIn 0.3s;
  height: var(--box_size);
}

.angle.dark {
  background: var(--app_black);
}

.angle_title {
  color: var(--app_dark_blue);
  font-family: var(--app_font);
  position: absolute;
  align-self: flex-start;
  margin: 1rem 0 0 1rem;
  font-weight: bold;
}

.connected_icon_holder {
  /* margin: 1rem; */
  display: flex;
  position: absolute;
  align-self: flex-end;
  background: none;
}

.connected_icon {
  margin: 1rem;
  width: 1.25rem;
  fill: white;
  transition: var(--transition_selected);
}

.battery_icon_holder {
  /* margin: 1rem; */
  display: flex;
  position: absolute;
  align-self: flex-end;
  background: none;
  margin: 0 3rem 0 0;
}

.battery_icon {
  padding: 1rem;
  width: 1.6rem;
  fill: var(--app_dark_blue);
  /* display: none; */
  /* transition: var(--transition_selected);  */
}

#battery_25 {
  display: none;
}

#battery_50 {
  display: none;
}
#battery_75 {
  display: block;
}
#battery_100 {
  display: none;
}
#battery_0 {
  display: none;
}

.connected_icon.dark {
  fill: black;
}

.connected_icon.connected {
  fill: var(--app_dark_blue);
}

.connected_icon.dark.connected {
  fill: var(--app_white);
}

.battery_icon.dark {
  fill: var(--app_white);
}

.angle_title.dark {
  color: var(--app_white);
}

.angle_value {
  font-size: 8rem;
  /* width: var(--box_size); */
  text-align: center;
  /* border: none; */
  /* pointer-events: none; */
  background-color: var(--app_light_blue);
  font-family: var(--app_font);
  color: var(--app_dark_blue);
  margin: auto 0;
  /* padding: 0; */
  border-radius: var(--box_radius);
}

.angle_value.dark {
  color: var(--app_white);
  background-color: var(--app_black);
}

.slider {
  appearance: none;
  /* width: var(--box_size); */
  width: 100%;
  height: 2rem;
  border-radius: 3rem;
  background: var(--app_light_blue);
  outline: none;
  opacity: 1;
  /* margin: 2rem 0 0 0; */
  margin: 0;
  touch-action: none;
  /* flex: 1; */
}

.slider.dark {
  background-color: var(--app_black);
}

.slider::-webkit-slider-thumb {
  appearance: none;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 3rem;
  background: var(--app_dark_blue);
  cursor: pointer;
}

.slider.dark::-webkit-slider-thumb {
  background: var(--app_white);
}

.all_input {
  display: flex;
  flex-direction: column;
  flex: 2;
  gap: 2rem;
}

.control_buttons {
  display: flex;
  /* margin: 2rem 0 0 0; */
  justify-content: space-around;
  /* width: var(--box_size); */
  /* flex: 1; */
  /* width: 100%; */
  gap: 1rem;
}

.control_button {
  background-color: var(--app_dark_blue);
  /* width: 40%; */
  height: 5rem;
  flex: 1;
  font-family: var(--app_font);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--box_radius);
  border: none;
  color: white;
  font-weight: bold;
  transition: var(--transition_selected);
}

.control_button.selected {
  background-color: var(--app_light_blue);
  color: var(--app_dark_blue);
}

.control_button.dark {
  background-color: var(--app_black);
  color: var(--app_white);
}

.control_button.dark.selected {
  background-color: var(--app_black_selected);
}

.control_button_label {
  text-align: center;
}

.setting {
  display: flex;
  background-color: var(--app_light_blue);
  /* width: var(--box_size); */
  height: 4rem;
  border-radius: var(--box_radius);
  align-items: center;
  animation: scaleIn 0.3s;
  /* margin: 0 0 1rem 0; */
  /* flex: 1; */
  cursor: pointer;
  box-sizing: border-box;
}

.setting.dark {
  background-color: var(--app_black);
}

.setting_label {
  font-family: var(--app_font);
  margin: 0 0 0 1rem;
  color: var(--app_dark_blue);
  flex: 1;
  text-align: start;
}

.setting_label.dark {
  color: var(--app_white);
}

.toggle_holder {
  background-color: var(--app_grey);
  width: 4rem;
  height: 2rem;
  margin: 0 1rem 0 auto;
  border-radius: 3rem;
  display: flex;
  justify-content: start;
}

.toggle_holder.dark {
  justify-content: end;
  background-color: var(--app_black_selected);
}

.toggle_circle {
  background-color: white;
  width: 1.5rem;
  height: 1.5rem;
  margin: 0.25rem;
  border-radius: 3rem;
  border: none;
}

.setting_text {
  font-family: var(--app_font);
  font-weight: bold;
  color: var(--app_dark_blue);
  text-align: end;
  margin: auto 1rem auto auto;
  flex: 1;
}

.setting_text.dark {
  color: var(--app_white);
}

.setting_button {
  margin: auto;
  background: none;
  font-family: var(--app_font);
  font-weight: bold;
  color: var(--app_dark_blue);
  font-size: 1rem;
}

.setting_button.dark {
  color: var(--app_white);
}

.all_charging_buttons {
  display: flex;
  flex-direction: column;
  /* flex: 2; */
}

.optimal_angle_button {
  background-color: var(--app_dark_blue);
  color: white;
  /* width: var(--box_size); */
  height: 4rem;
  font-family: var(--app_font);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--box_radius);
  /* margin: 3rem 0 0 0; */
  border: none;
  font-weight: bold;
  letter-spacing: 0.2rem;
  /* flex: 1; */
  padding: 1rem;
}

.optimal_angle_button.dark {
  background-color: var(--app_black);
}

.update {
  width: 1.5rem;
  margin: 0 0 0 1rem;
  fill: var(--app_white);
  transition: transform 12s linear;
}

.update.rotated {
  transform: rotate(360deg);
}

.show_calculation_button {
  background-color: var(--app_dark_blue);
  color: white;
  font-family: var(--app_font);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--box_radius) var(--box_radius) 0 0;
  border: none;
  font-weight: bold;
  letter-spacing: 0.1rem;
  height: 4rem;
  /* flex: 1; */
  margin: 1rem 0 0 0;
  padding: 1rem;
  transition: none;
}

.show_calculation_button.displayed {
  background-color: var(--app_light_blue);
  color: var(--app_dark_blue);
}

.show_calculation_button.dark {
  background-color: var(--app_black);
  color: var(--app_white);
}

.show_calculation_button.dark.displayed {
  background-color: var(--app_black_selected);
}

.show_calculation {
  visibility: hidden;
  flex-direction: column;
  background-color: var(--app_light_blue);
  border-radius: 0 0 var(--box_radius) var(--box_radius);
  transition: none;
}

.show_calculation.displayed {
  visibility: visible;
}

.show_calculation.dark {
  background-color: var(--app_black);
}

.show_calculation.dark.displayed {
  background-color: var(--app_black_selected);
}

.show_calculation_all_info {
  margin: 0 1rem 1rem 1rem;
}

.calculation_info {
  color: var(--app_dark_blue);
  font-family: var(--app_font);
  margin: 1rem 0 0 0;
}

.calculation_info.dark {
  color: var(--app_white);
}

.calculation_info:first-child {
  margin: 0;
}

.calculation_info_user {
  color: red;
  font-family: var(--app_font);
  font-weight: bold;
  margin: 1rem 0 0 0;
}

.angle_source {
  font-family: var(--app_font);
  padding: 1rem;
  display: flex;
  text-decoration: none;
  font-weight: bold;
  user-select: none;
  color: blue;
}

.angle_source.dark {
  color: var(--app_white);
}

.open_tab {
  width: 1rem;
  margin: 0 0 0 0.75rem;
  fill: blue;
}

.open_tab.dark {
  fill: var(--app_white);
}

.navbar {
  background-color: white;
  display: flex;
  justify-content: space-around;
  position: fixed;
  bottom: 0;
  width: 100vw;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
  /* margin: 40rem 0 0 0; */
  height: 5rem;
}

.navbar.dark {
  /* background-color: var(--app_black); */
  background-color: black;
  box-shadow: 0 10px 20px rgba(255, 255, 255, 0.19),
    0 6px 6px rgba(255, 255, 255, 0.23);
}

.navbar_icons {
  padding: 1rem;
  cursor: pointer;
  user-select: none;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: none;
}

.navbar_icon {
  width: 1.25rem;
  height: 1.25rem;
  display: block;
  /* margin: auto; */
  transition: var(--transition_selected_icon);
}

.navbar_icon.selected {
  fill: var(--app_dark_blue);
}

.navbar_icon.dark {
  fill: var(--app_white_light);
}

.navbar_icon.dark.selected {
  fill: var(--app_white);
}

.navbar_icon_label {
  font-family: var(--app_font);
  /* margin: 0.5rem 0 0 0; */
  margin: 0;
  text-align: center;
  transition: var(--transition_selected_text);
}

.navbar_icon_label.selected {
  color: var(--app_dark_blue);
  font-weight: bold;
}

.navbar_icon_label.dark {
  color: var(--app_white_light);
}

.navbar_icon_label.dark.selected {
  color: var(--app_white);
}

@media screen and (max-height: 400px), screen and (max-width: 300px) {
  .angle {
    height: 10rem;
  }

  .angle_value {
    font-size: 3rem;
  }

  .navbar_icons {
    padding: 0.5rem;
    /* gap: 1rem; */
  }
}

/* For tablets: */
@media screen and (min-width: 670px) {
  body {
    display: flex;
  }

  .content.smart,
  .content.charging {
    gap: 2rem;
    flex-direction: row;
    max-width: none;
  }

  .all_input {
    width: var(--box_size);
    justify-content: flex-end;
  }

  .control_button {
    height: var(--box_size_small);
  }

  .angle {
    width: var(--box_size);
  }

  .all_charging_buttons {
    width: var(--box_size);
  }

  .settings {
    max-width: none;
  }

  .setting {
    width: var(--box_size);
  }

  .navbar {
    justify-content: center;
  }

  .navbar_icons {
    max-width: var(--box_size_small);
  }
}

@media screen and (min-width: 1024px) {
  /* For desktop: */
  .content.smart,
  .content.charging {
    gap: 5rem;
  }
  .angle {
    height: var(--box_size_large);
    width: var(--box_size_large);
  }
  .all_input {
    width: var(--box_size_large);
  }

  .all_charging_buttons {
    width: var(--box_size_large);
  }

  .optimal_angle_button {
    height: 5rem;
  }

  .show_calculation_button {
    height: 5rem;
  }
  .setting {
    width: var(--box_size_large);
  }
}