@fxshelf/button-kit/src/core/styles.css

Animated button shelf for React and Vue — switch styles by variant string. Zero animation-lib deps. Copy-as-source friendly.

.fx-btn {
  --fx-btn-fg: #0f0f12;
  --fx-btn-bg: #f4f4f5;
  --fx-btn-accent: #3b82f6;
  --fx-btn-radius: 10px;

  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--fx-btn-radius);
  background: var(--fx-btn-bg);
  color: var(--fx-btn-fg);
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  isolation: isolate;
  overflow: hidden;
  transition:
    transform 160ms ease,
    box-shadow 200ms ease,
    background-color 200ms ease,
    border-color 200ms ease,
    color 200ms ease;
}

.fx-btn:focus-visible {
  outline: 2px solid var(--fx-btn-accent);
  outline-offset: 3px;
}

.fx-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.fx-btn:active:not(:disabled) {
  transform: translateY(1px) scale(0.98);
}

/* —— solid —— */
.fx-btn--solid {
  --fx-btn-fg: #fafafa;
  --fx-btn-bg: #18181b;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset;
}

.fx-btn--solid:hover:not(:disabled) {
  background: #27272a;
}

/* —— outline —— */
.fx-btn--outline {
  --fx-btn-fg: #18181b;
  --fx-btn-bg: transparent;
  border-color: #d4d4d8;
  background: transparent;
}

.fx-btn--outline:hover:not(:disabled) {
  border-color: #18181b;
  background: #18181b;
  color: #fafafa;
}

/* —— soft —— */
.fx-btn--soft {
  --fx-btn-fg: #1d4ed8;
  --fx-btn-bg: #dbeafe;
}

.fx-btn--soft:hover:not(:disabled) {
  background: #bfdbfe;
  transform: translateY(-1px);
}

.fx-btn--soft:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}

/* —— glow —— */
.fx-btn--glow {
  --fx-btn-fg: #f8fafc;
  --fx-btn-bg: #2563eb;
  box-shadow:
    0 0 0 0 rgba(37, 99, 235, 0.45),
    0 8px 24px rgba(37, 99, 235, 0.28);
  animation: fx-btn-glow-pulse 2.4s ease-in-out infinite;
}

.fx-btn--glow:hover:not(:disabled) {
  background: #1d4ed8;
  box-shadow:
    0 0 0 6px rgba(37, 99, 235, 0.18),
    0 10px 28px rgba(37, 99, 235, 0.4);
  animation: none;
}

@keyframes fx-btn-glow-pulse {
  0%,
  100% {
    box-shadow:
      0 0 0 0 rgba(37, 99, 235, 0.4),
      0 8px 24px rgba(37, 99, 235, 0.28);
  }
  50% {
    box-shadow:
      0 0 0 8px rgba(37, 99, 235, 0),
      0 10px 28px rgba(37, 99, 235, 0.35);
  }
}

/* —— neon —— */
.fx-btn--neon {
  --fx-btn-fg: #67e8f9;
  --fx-btn-bg: #0b1220;
  border-color: #22d3ee;
  box-shadow:
    0 0 0 1px rgba(34, 211, 238, 0.25),
    0 0 18px rgba(34, 211, 238, 0.35),
    inset 0 0 12px rgba(34, 211, 238, 0.08);
  text-shadow: 0 0 10px rgba(103, 232, 249, 0.55);
}

.fx-btn--neon:hover:not(:disabled) {
  color: #ecfeff;
  border-color: #67e8f9;
  box-shadow:
    0 0 0 1px rgba(103, 232, 249, 0.45),
    0 0 28px rgba(34, 211, 238, 0.55),
    inset 0 0 16px rgba(34, 211, 238, 0.14);
}

/* —— shimmer —— */
.fx-btn--shimmer {
  --fx-btn-fg: #fafafa;
  --fx-btn-bg: #111827;
}

.fx-btn--shimmer::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    110deg,
    transparent 30%,
    rgba(255, 255, 255, 0.28) 48%,
    transparent 66%
  );
  transform: translateX(-120%);
  transition: transform 0.55s ease;
}

.fx-btn--shimmer:hover:not(:disabled)::before {
  transform: translateX(120%);
}

.fx-btn--shimmer:hover:not(:disabled) {
  background: #1f2937;
}

/* —— chroma（炫彩流光 + hover 高斯光晕） —— */
.fx-btn--chroma {
  --fx-btn-fg: #fff;
  --fx-btn-radius: 999px;
  z-index: 0;
  overflow: visible;
  isolation: auto;
  border: none;
  background: linear-gradient(
    to right,
    #03a9f4,
    #f441a5,
    #ffeb3b,
    #03a9f4
  );
  background-size: 400%;
  letter-spacing: 0.08em;
  animation: fx-btn-chroma-shift 8s ease infinite;
}

.fx-btn--chroma::before {
  content: '';
  position: absolute;
  inset: -4px;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(
    to right,
    #03a9f4,
    #f441a5,
    #ffeb3b,
    #03a9f4
  );
  background-size: 400%;
  filter: blur(0);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.4s ease,
    filter 0.4s ease;
  animation: fx-btn-chroma-shift 8s ease infinite;
}

.fx-btn--chroma:hover:not(:disabled)::before {
  opacity: 1;
  filter: blur(8px);
}

.fx-btn--chroma:active:not(:disabled) {
  transform: translateY(1px) scale(0.98);
}

@keyframes fx-btn-chroma-shift {
  0% {
    background-position: 0%;
  }

  100% {
    background-position: 400%;
  }
}

/* —— liquid（底部液体升起） —— */
.fx-btn--liquid {
  --fx-btn-fg: #0891b2;
  --fx-btn-bg: transparent;
  z-index: 0;
  border-color: #0891b2;
  background: transparent;
  overflow: hidden;
}

.fx-btn--liquid::before {
  content: '';
  position: absolute;
  left: -30%;
  bottom: 0;
  z-index: -1;
  width: 160%;
  height: 220%;
  border-radius: 42% 48% 0 0 / 28% 32% 0 0;
  background: linear-gradient(180deg, #22d3ee, #0891b2);
  transform: translateY(82%);
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

.fx-btn--liquid:hover:not(:disabled) {
  color: #fff;
}

.fx-btn--liquid:hover:not(:disabled)::before {
  transform: translateY(12%);
  animation: fx-btn-liquid-wave 2.4s ease-in-out infinite 0.55s;
}

@keyframes fx-btn-liquid-wave {
  0%,
  100% {
    border-radius: 42% 48% 0 0 / 28% 32% 0 0;
  }

  50% {
    border-radius: 48% 42% 0 0 / 34% 26% 0 0;
  }
}

/* —— wipe（左向右擦除填充） —— */
.fx-btn--wipe {
  --fx-btn-fg: #f4f4f5;
  --fx-btn-bg: transparent;
  z-index: 0;
  border-color: rgba(244, 244, 245, 0.7);
  background: transparent;
  overflow: hidden;
}

.fx-btn--wipe::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: #f4f4f5;
  transform: translateX(-105%) skewX(-12deg);
  transform-origin: left center;
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}

.fx-btn--wipe:hover:not(:disabled) {
  color: #18181b;
  border-color: #f4f4f5;
}

.fx-btn--wipe:hover:not(:disabled)::before {
  transform: translateX(0) skewX(0deg);
}

/* —— glass（毛玻璃） —— */
.fx-btn--glass {
  --fx-btn-fg: #f8fafc;
  --fx-btn-bg: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.22),
    0 8px 24px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.fx-btn--glass:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
}

.fx-btn--glass:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}