:root {--bg-color-transition: background var(--transition-duration) var(--transition-timing) var(--transition-delay);--base-transitions: var(--transition-duration) var(--transition-timing) var(--transition-delay);--base-blur: blur (15px);--line-height-s: calv(var(--text-s)*1.72);--btn-border-hover: var(--btn-background);}