/* Billboard Controller -- Mobile-first Styles */

:root {
  --color-bg: #1a1a2e;
  --color-surface: #16213e;
  --color-primary: #0f3460;
  --color-accent: #e94560;
  --color-text: #eaeaea;
  --color-text-muted: #8a8a9a;
  --color-success: #4ecca3;
  --color-warning: #f0a500;
  --color-error: #e94560;
  --radius: 0.75rem;
  --transition: 150ms ease;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  touch-action: none;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  -webkit-user-select: none;
  user-select: none;
}

/* -- Status Screen -- */

.controller {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.controller__status {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 2rem;
  text-align: center;
  gap: 1.5rem;
}

.controller__title {
  font-size: 1.5rem;
  font-weight: 600;
}

.controller__message {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.controller__loader {
  width: 2.5rem;
  height: 2.5rem;
  border: 3px solid var(--color-surface);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* -- Mouse Mode -- */

.controller__input--mouse {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.trackpad {
  flex: 1;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-primary);
  cursor: crosshair;
}

.trackpad__buttons {
  display: flex;
  height: 5rem;
}

.trackpad__btn {
  flex: 1;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: background-color var(--transition);
}

.trackpad__btn--left {
  background-color: var(--color-primary);
  border-right: 1px solid var(--color-bg);
}

.trackpad__btn--right {
  background-color: var(--color-primary);
}

.trackpad__btn:active {
  background-color: var(--color-accent);
}

/* -- Navigation Mode -- */

.controller__input--navigation {
  display: flex;
  height: 100%;
  gap: 2px;
}

.nav__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
  border: none;
  color: var(--color-text);
  font-size: 3rem;
  cursor: pointer;
  transition: background-color var(--transition);
}

.nav__btn:active {
  background-color: var(--color-accent);
}

.nav__arrow {
  pointer-events: none;
}

/* -- Utility -- */

[hidden] {
  display: none !important;
}