.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--brutal-space-2);
  font-family: var(--brutal-font-mono);
  font-weight: var(--brutal-font-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: var(--brutal-border-width) var(--brutal-border-style) var(--brutal-black);
  cursor: pointer;
  transition: var(--brutal-transition-base);
  user-select: none;
  white-space: nowrap;
  outline: none;
}

/* Sizes */
.sm {
  padding: var(--brutal-space-2) var(--brutal-space-4);
  font-size: var(--brutal-text-xs);
}

.md {
  padding: var(--brutal-space-3) var(--brutal-space-6);
  font-size: var(--brutal-text-sm);
}

.lg {
  padding: var(--brutal-space-4) var(--brutal-space-8);
  font-size: var(--brutal-text-base);
}

.xl {
  padding: var(--brutal-space-6) var(--brutal-space-10);
  font-size: var(--brutal-text-lg);
}

/* Variants */
.default {
  background-color: var(--brutal-white);
  color: var(--brutal-black);
}

.default:hover:not(.disabled) {
  background-color: var(--brutal-white);
  color: var(--brutal-accent);
  border-color: var(--brutal-accent);
}

.destructive {
  background-color: var(--brutal-accent);
  color: var(--brutal-white);
  border-color: var(--brutal-accent-dark);
}

.destructive:hover:not(.disabled) {
  background-color: var(--brutal-accent-dark);
}

.outline {
  background-color: transparent;
  color: var(--brutal-black);
}

.outline:hover:not(.disabled) {
  background-color: transparent;
  color: var(--brutal-accent);
  border-color: var(--brutal-accent);
}

.ghost {
  background-color: transparent;
  color: var(--brutal-black);
  border-color: transparent;
}

.ghost:hover:not(.disabled) {
  background-color: transparent;
  color: var(--brutal-accent);
  border-color: var(--brutal-accent);
}

.brutal {
  background-color: var(--brutal-black);
  color: var(--brutal-white);
}

.brutal:hover:not(.disabled) {
  background-color: var(--brutal-gray-900);
}

.primary {
  background-color: var(--brutal-accent);
  color: var(--brutal-white);
  border-color: var(--brutal-accent-dark);
}

.primary:hover:not(.disabled) {
  background-color: var(--brutal-accent-dark);
}

.secondary {
  background-color: var(--brutal-gray-200);
  color: var(--brutal-gray-800);
  border-color: var(--brutal-gray-400);
}

.secondary:hover:not(.disabled) {
  background-color: var(--brutal-gray-200);
  color: var(--brutal-accent);
  border-color: var(--brutal-accent);
}

.danger {
  background-color: var(--brutal-error);
  color: var(--brutal-white);
  border-color: #DC2626;
}

.danger:hover:not(.disabled) {
  background-color: #DC2626;
}

/* Shadow effect */
.withShadow {
  box-shadow: var(--brutal-shadow);
}

.withShadow:hover:not(.disabled) {
  transform: translate(-4px, -4px);
  box-shadow: var(--brutal-shadow-lg);
}

.withShadow:active:not(.disabled) {
  transform: translate(0, 0);
  box-shadow: var(--brutal-shadow-sm);
}

/* States */
.fullWidth {
  width: 100%;
}

.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.disabled:hover {
  transform: none;
  box-shadow: var(--brutal-shadow);
}

.loading {
  color: transparent;
}

/* Loading spinner */
.loader {
  position: absolute;
  width: 1em;
  height: 1em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Focus */
.button:focus-visible {
  outline: var(--brutal-border-width) var(--brutal-border-style) var(--brutal-accent);
  outline-offset: 2px;
}

/* Icon spacing */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.content {
  display: inline-flex;
  align-items: center;
}

/* Glitch effect */
.glitch {
  position: relative;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: inherit;
}

.glitch::before {
  animation: brutal-glitch-1 0.5s infinite;
  color: var(--brutal-accent);
  z-index: -1;
  opacity: 0.8;
}

.glitch::after {
  animation: brutal-glitch-2 0.5s infinite;
  color: var(--brutal-info);
  z-index: -2;
  opacity: 0.8;
}

.glitch:hover::before,
.glitch:hover::after {
  animation-duration: 0.2s;
}

@keyframes brutal-glitch-1 {
  0%, 100% {
    transform: translate(0);
  }
  20% {
    transform: translate(-2px, 2px);
  }
  40% {
    transform: translate(-2px, -2px);
  }
  60% {
    transform: translate(2px, 2px);
  }
  80% {
    transform: translate(2px, -2px);
  }
}

@keyframes brutal-glitch-2 {
  0%, 100% {
    transform: translate(0);
  }
  20% {
    transform: translate(2px, -2px);
  }
  40% {
    transform: translate(2px, 2px);
  }
  60% {
    transform: translate(-2px, -2px);
  }
  80% {
    transform: translate(-2px, 2px);
  }
}