multica/packages/ui/styles/base.css

/* =============================================================================
 * Multica shared base styles — imported by all apps
 * ============================================================================= */

/* Shiki dual themes: CSS-only light/dark switching via CSS variables */
/* @see https://shiki.style/guide/dual-themes */
.shiki,
.shiki span {
  color: var(--shiki-light);
}

.dark .shiki,
.dark .shiki span {
  color: var(--shiki-dark) !important;
}

/* Multica icon: entrance spin animation */
@keyframes entrance-spin {
  0% { transform: rotate(0deg); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: rotate(360deg); opacity: 1; }
}

.animate-entrance-spin {
  animation: entrance-spin 0.6s ease-out forwards;
}

/* Onboarding: step / phase entry — 400ms fade + 4px rise.
 * Matches the design prototype's .fade-in. Applied on mount so every new
 * step (and intra-step phase switch, via key=phase remount) plays once.
 * `both` fill-mode commits the `from` styles pre-animation to avoid a
 * single-frame flash at natural state before the animation grabs. */
@keyframes onboarding-enter {
  from { opacity: 0; transform: translateY(4px); }
}

.animate-onboarding-enter {
  animation: onboarding-enter 0.4s ease both;
}

/* Onboarding completion: success badge spring-pop.
 * Lands with a subtle overshoot (scale 1.12 → 1) so the circle feels
 * physical rather than linearly interpolated. Paired with the drawn
 * checkmark below which kicks in after the badge has settled. */
@keyframes completion-badge {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(1.12); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

.animate-completion-badge {
  animation: completion-badge 500ms cubic-bezier(0.5, 1.5, 0.4, 1) both;
}

/* Onboarding completion: SVG checkmark drawn by animating
 * stroke-dashoffset from 1 → 0. Requires the target <path> to declare
 * `pathLength={1}` and `strokeDasharray={1}` so the stroke length is
 * normalized and the animation is geometry-agnostic. */
@keyframes completion-check {
  from { stroke-dashoffset: 1; }
  to { stroke-dashoffset: 0; }
}

.animate-completion-check {
  animation: completion-check 400ms ease-out 350ms both;
}

/* Chat FAB: gentle color + border tint while a chat task is running.
 * Keeps the ring at the same thickness — only hue shifts towards brand
 * at half-cycle, no outer glow. */
@keyframes chat-impulse {
  0%, 100% {
    color: var(--muted-foreground);
    box-shadow: 0 0 0 1px color-mix(in oklab, var(--foreground) 10%, transparent);
  }
  50% {
    color: var(--brand);
    box-shadow: 0 0 0 1px color-mix(in oklab, var(--brand) 40%, transparent);
  }
}

.animate-chat-impulse {
  animation: chat-impulse 1.6s ease-in-out infinite;
}

/* ChatGPT-style "thinking" shimmer for inline text — a soft light sweep
 * runs across the glyphs, signalling "the agent is doing something" without
 * a separate spinner. Pure CSS: linear-gradient clipped to the text shape,
 * the gradient slid across via background-position. Uses the same muted →
 * foreground tokens chat copy normally uses, so the effect adapts to light
 * and dark mode without per-mode overrides.
 *
 * Apply to a <span> wrapping the label only — not the whole pill, since
 * the timer counter and Cancel button shouldn't shimmer. */
@keyframes chat-text-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.animate-chat-text-shimmer {
  background-image: linear-gradient(
    90deg,
    var(--muted-foreground) 0%,
    var(--muted-foreground) 35%,
    var(--foreground) 50%,
    var(--muted-foreground) 65%,
    var(--muted-foreground) 100%
  );
  background-size: 200% 100%;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: chat-text-shimmer 2.5s linear infinite;
}

/* Sidebar: open triggers (dropdown/popover) get active background */
[data-sidebar="menu-button"][data-popup-open] {
  background-color: var(--sidebar-accent);
  color: var(--sidebar-accent-foreground);
}

/* Sonner toast: align icon to first line of text, not vertically centered */
[data-sonner-toast] {
  align-items: flex-start !important;
}

[data-sonner-toast] [data-icon] {
  margin-top: 2.5px;
}

@layer base {
  * {
    @apply border-border outline-ring/50;
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
  }
  *::-webkit-scrollbar { width: 6px; height: 6px; }
  *::-webkit-scrollbar-track { background: var(--scrollbar-track); }
  *::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
  *::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-thumb-hover); }
  body {
    @apply bg-background text-foreground;
  }
  html {
    @apply font-sans;
    /* Auto-insert 1/4em space between CJK ideographs and Latin letters/numerals.
     * Native CSS text-autospace (Chrome 119+, Electron recent versions).
     * Progressive enhancement: browsers that don't support it simply ignore the rule. */
    text-autospace: ideograph-alpha ideograph-numeric;
  }
}