/* Reset styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Layout */
body {
  overflow-y: auto;
  background-color: var(--bg-body);
  font-size: var(--font-base-size);
  font-family: var(--font-base-family);
  color: var(--fg-default);
}

a {
  color: var(--fg-default);
  text-decoration: none;
}

.full-viewport {
  height: var(--size-fullscreen-height);
  width: var(--size-fullscreen-width);
}

.centered-overlay {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: none;
}

.app {
  position: absolute;
  width: var(--size-app-width);
  height: var(--size-app-height);
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  border-radius: var(--border-radius-app);
  box-shadow: var(--box-shadow-app);
}

.app-titlebar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: var(--size-titlebar-height);
  padding: 0 var(--spacing-titlebar-horizontal);
  font-size: var(--font-titlebar-size);
  border-radius: var(--border-radius-titlebar);
  cursor: grab;
  -webkit-app-region: drag;
}

@media (min-width: 1024px) {
  .app {
    max-width: 1200px;
    max-height: 800px;
  }
}

@media (max-width: 500px) {
  .app {
    width: calc(var(--size-app-width) * (9/8));
  }
}

.app-titlebar-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-weight: bold;
  text-align: center;
}

.app-titlebar-right {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75em;
}

.app-titlebar .btns {
  display: flex;
  justify-content: center;
  align-items: center;
  fill: var(--bg-buttons);
}

.app-titlebar .btns svg {
  width: 26px;
  height: 26px;
  border-radius: 50%;
}

.app-titlebar .btns svg path,
.app-titlebar .btns svg rect {
  fill: var(--fg-default);
}

.app-titlebar .btns svg g {
  stroke: var(--fg-default);
}

.app-content {
  flex-grow: 1;
  margin: var(--spacing-default-vertical) var(--spacing-default-horizontal);
  font-size: var(--font-base-size);
  overflow-y: scroll;
}

.btns {
  opacity: 1;
}

.btns:hover {
  opacity: 0.6;
}

#canvas {
  display: block;
  position: relative;
  background-color: var(--bg-canvas);
}

/* "Made with" section */
#made-with {
  position: absolute;
  bottom: 0;
  right: 0;
  height: 40px;
  padding: 0.5em;
  border-radius: 15px 0 0 0;
  background-color: var(--bg-made-with);
}

.btn-reopener {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 40px;
  padding: 0.5em;
  border-radius: 0 15px 0 0;
  display: none;
  background-color: var(--bg-reopener);
}