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Arda features carefully crafted animations with cinematic timing curves for a polished user experience.

Animation timing

Three timing presets for different interaction types:
--anim-lively: 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);   /* Bouncy */
--anim-smooth: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);     /* Smooth ease */
--anim-cinematic: 0.5s cubic-bezier(0.16, 1, 0.3, 1);     /* Slow and elegant */

Usage

  • Lively: Quick interactions (buttons, icons, tags)
  • Smooth: General transitions (tabs, inputs, links)
  • Cinematic: Dramatic effects (images, callouts, modals)

Keyframe animations

fadeInScaleUp

Used for popovers and modals:
@keyframes fadeInScaleUp {
  0% {
    opacity: 0;
    transform: scale(0.97) translateY(8px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

popIn

Animates checkbox sword icons (⚔):
@keyframes popIn {
  0% {
    transform: scale(0.4) rotate(-45deg);
    opacity: 0;
  }
  60% {
    transform: scale(1.2) rotate(-45deg);
    opacity: 1;
  }
  100% {
    transform: scale(1) rotate(-45deg);
    opacity: 1;
  }
}

slideRightGlow

Active navigation item animation:
@keyframes slideRightGlow {
  0% {
    transform: translateX(0);
    color: inherit;
    box-shadow: inset 0 0 0 transparent;
  }
  100% {
    transform: translateX(4px);
    color: var(--text-accent-hover);
    box-shadow: inset 2px 0 0 var(--interactive-accent);
  }
}

slideDownSlight

Active tab animation:
@keyframes slideDownSlight {
  0% {
    transform: translateY(-4px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

subtlePulse

Checkbox completion effect:
@keyframes subtlePulse {
  0% {
    box-shadow: 0 0 0 0 rgba(139, 45, 62, 0.6);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(139, 45, 62, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(139, 45, 62, 0);
  }
}

lineSlide

Strikethrough animation for completed tasks:
@keyframes lineSlide {
  0% {
    transform: scaleX(0);
  }
  100% {
    transform: scaleX(1);
  }
}

fadeInOverlay

Modal background blur effect:
@keyframes fadeInOverlay {
  0% {
    opacity: 0;
    backdrop-filter: blur(0px);
  }
  100% {
    opacity: 1;
    backdrop-filter: blur(3px);
  }
}

Hover effects

Buttons

button.mod-cta:hover {
  transform: translateY(-2px);
  box-shadow: 3px 6px 16px rgba(139, 45, 62, 0.25), 2px 2px 0px #000;
  filter: brightness(1.15);
}

Icons

.clickable-icon:hover {
  background: rgba(120, 70, 35, 0.15);
  transform: scale(1.15) rotate(4deg);
  color: var(--text-accent-hover);
}
.nav-file-title:hover {
  background-color: var(--nav-item-background-hover);
  transform: translateX(6px);
  box-shadow: inset 2px 0 0 var(--interactive-accent-hover);
  color: var(--text-accent-hover);
}

Tabs

.workspace-tab-header:hover {
  background: rgba(139, 45, 62, 0.05);
  transform: translateY(-1px);
}

Tags

.tag:hover {
  transform: translateY(-3px) scale(1.08);
  box-shadow: 0 6px 12px rgba(139, 45, 62, 0.25);
}
Animated underline on hover:
.markdown-rendered a.internal-link::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: -2px;
  left: 0;
  background-color: var(--link-color-hover);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--anim-smooth);
}

.markdown-rendered a.internal-link:hover::after {
  transform: scaleX(1);
}

Callouts

.callout:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.6), 0 4px 12px rgba(139, 45, 62, 0.12);
  border-left-width: 5px;
}

Images

.markdown-rendered img:not(.emoji):hover {
  transform: scale(1.03) translateY(-4px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.8), 0 0 20px rgba(139, 45, 62, 0.25);
  border-color: var(--interactive-accent);
}

Active states

Button press

button.mod-cta:active {
  transform: translateY(2px) scale(0.97);
  box-shadow: 1px 1px 0px #000;
  transition: all 0.1s ease-out;
}

Icon press

.clickable-icon:active {
  transform: scale(0.85) rotate(-4deg);
  transition: transform 0.1s ease;
}

Checkbox press

.task-list-item-checkbox:active {
  transform: rotate(45deg) scale(0.85);
}

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