/* Box sizing */

html {
  box-sizing: border-box;
}
*, *:before, *:after {
  box-sizing: inherit;
}

/* Constants */

:root {
  --color-header: #333333;
  --color-action: #993333;
  --color-action-darker: #773333;
  --color-timer-arc-total: #EEEEEE;
  --color-timer-arc-progress: #71b571;
  --color-timer-hover: #DDEEDD;

  --dial-width: 20rem;

  --base-font-size: 18px;
}

@media all and (max-width: 800px) {
  :root {
    --base-font-size: 14px;
  }
}

/* Layout */

html {
  font-size: var(--base-font-size);
}

body {
  margin: 0;
}

.g-Layout__Header {
  background-color: var(--color-header);
  color: white;
  padding: 1rem 2rem;
  font-size: 2rem;
}

#g-Layout__Main {
  transition: all 0.2s ease-in-out;
}

.g-Layout__HideMain {
  opacity: 0;
  padding-left: 2rem;
}

/* Config */

#g-Form {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 5rem;
}

.g-Form__Label {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1rem;
  text-align: center;
  font-size: 1.3rem;
}

.g-Form__Input {
  display: block;
  text-align: center;
  margin-top: 0.5rem;
  font-size: 1.3rem;
  width: 10rem;
}

.g-Form__Duration {
  text-align: center;
  font-size: 1.5rem;
  margin-top: 1rem;
}

.g-Form__Start {
  font-size: 1.5rem;
  background-color: var(--color-action);
  border: 3px solid var(--color-action-darker);
  color: white;
  padding: 0.5rem 0.8rem;
  width: 10rem;
  margin-top: 2rem;
  cursor: pointer;
}

/* Timer */

#g-Timer {
  display: flex;
  flex-direction: column;
  align-items: center;
  display: none;
}

#g-Timer__Dial {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: var(--dial-width);
  height: var(--dial-width);
  cursor: pointer;
  background-color: white;
  font-size: 3rem;
  margin: 5rem 0;
  position: relative;
  border: none;
}

.g-Timer__Arc {
  width: inherit;
  height: inherit;
  position: absolute;
  top: 0;
  left: 0;
}

.g-Timer__ArcTotal {
  stroke: var(--color-timer-arc-total);
  fill: none;
  stroke-width: 10;
}

#g-Timer__ArcProgress {
  stroke: var(--color-timer-arc-progress);
  fill: none;
  stroke-width: 10;
}

#g-Timer__Step {
  margin-bottom: 0.5rem;
}

#g-Timer__Duration:hover {
  background-color: var(--color-timer-hover);
  color: initial;
}

.g-Timer__TabataAndCycle {
  display: flex;
  justify-content: space-around;
  font-size: 1.5rem;
  width: var(--dial-width);
}

.g-Timer__Tabata,
.g-Timer__Cycle {
  text-align: center;
  margin-bottom: 1rem;
}

#g-Timer__Stop {
  font-size: 1.5rem;
  background-color: var(--color-action);
  border: 3px solid var(--color-action-darker);
  color: white;
  padding: 0.5rem 0.8rem;
  width: 10rem;
  margin-top: 2rem;
  cursor: pointer;
}