* {
  box-sizing: border-box;
}

html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  font-family: var(--font-body);
  color: var(--colour-ink);
  background:
    radial-gradient(ellipse closest-side at center, rgba(255, 228, 90, 0.35), #ffffff),
    var(--colour-bg);
  -webkit-text-size-adjust: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
  touch-action: manipulation;
}

.app-shell {
  max-width: var(--content-max-width);
  height: 100dvh;
  min-height: 100dvh;
  margin: 0 auto;
  padding: 0 var(--space-4) calc(148px + env(safe-area-inset-bottom));
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.screen {
  animation: screen-in var(--motion-fast);
}

@keyframes screen-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.screen-header {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  align-items: start;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  padding-top: var(--space-3);
}

.screen-header--no-right {
  grid-template-columns: 52px 1fr;
}

.screen-header__text {
  text-align: left;
}

.screen-header h1 {
  margin: 0;
  font-size: var(--font-size-title);
  letter-spacing: -0.03em;
}

.screen-header p {
  margin: var(--space-1) 0 0;
  color: var(--colour-muted);
}


.app-nav {
  position: fixed;
  left: 50%;
  bottom: calc(var(--space-4) + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: calc(100% - var(--space-5) * 2);
  max-width: 420px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  padding: var(--space-2);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(0, 0, 0, 0.18);
  border-radius: 20px;
  box-shadow: 0 8px 32px rgba(27, 22, 64, 0.12), 0 1px 4px rgba(27, 22, 64, 0.06);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
}