/**
 * Button component styles
 * BEM methodology: Block = c-button
 */

.c-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-family: var(--font-secondary);
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

/* Sizes */
.c-button--small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.c-button--medium {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
}

.c-button--large {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-lg);
}

/* Primary variant */
.c-button--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.c-button--primary:hover,
.c-button--primary:focus {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.c-button--primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Secondary variant */
.c-button--secondary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.c-button--secondary:hover,
.c-button--secondary:focus {
  background-color: var(--color-accent-dark);
  color: var(--color-white);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.c-button--secondary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Outline variant */
.c-button--outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.c-button--outline:hover,
.c-button--outline:focus {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.c-button--outline:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Icon handling */
.c-button__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.2em;
  height: 1.2em;
}

.c-button--has-icon .c-button__text {
  margin-left: var(--spacing-xs);
}

/* Animations */
.animations-enabled .c-button {
  position: relative;
  overflow: hidden;
}

.animations-enabled .c-button::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.animations-enabled .c-button:active::before {
  width: 300px;
  height: 300px;
}

/* Focus styles for accessibility */
.c-button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .c-button {
    transition: none;
  }
  
  .c-button::before {
    display: none;
  }
}