/**
 * Button Styles
 * Heko Pora design system
 */

/* Base button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--btn-padding-y) var(--btn-padding-x);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: var(--border-width) solid transparent;
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-fast);
  min-height: var(--touch-target-min);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled,
.btn.disabled {
  opacity: 0.65;
  cursor: not-allowed;
  pointer-events: none;
}

/* Primary button */
.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-text-primary);
}

.btn-primary:focus-visible {
  box-shadow: var(--shadow-focus);
}

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

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
  color: var(--color-white);
}

/* Success button */
.btn-success {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-white);
}

.btn-success:hover {
  background-color: var(--color-success-dark);
  border-color: var(--color-success-dark);
  color: var(--color-white);
}

/* Danger button */
.btn-danger {
  background-color: var(--color-danger);
  border-color: var(--color-danger);
  color: var(--color-white);
}

.btn-danger:hover {
  background-color: var(--color-danger-dark);
  border-color: var(--color-danger-dark);
  color: var(--color-white);
}

/* Outline buttons */
.btn-outline-primary {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-text-primary);
}

.btn-outline-primary:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-primary);
}

.btn-outline-secondary {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.btn-outline-secondary:hover {
  background-color: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

/* Light button */
.btn-light {
  background-color: var(--color-white);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn-light:hover {
  background-color: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

/* Link button */
.btn-link {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-text-secondary);
  padding: 0;
  min-height: auto;
}

.btn-link:hover {
  color: var(--color-text-primary);
  text-decoration: underline;
  transform: none;
  box-shadow: none;
}

/* Button sizes */
.btn-sm {
  padding: var(--btn-padding-y-sm) var(--btn-padding-x-sm);
  font-size: var(--font-size-sm);
  min-height: 36px;
}

.btn-lg {
  padding: var(--btn-padding-y-lg) var(--btn-padding-x-lg);
  font-size: var(--font-size-lg);
  min-height: 48px;
}

/* Block button */
.btn-block {
  display: flex;
  width: 100%;
}

/* Button group */
.btn-group {
  display: inline-flex;
  gap: 0;
}

.btn-group .btn {
  border-radius: 0;
}

.btn-group .btn:first-child {
  border-top-left-radius: var(--border-radius-lg);
  border-bottom-left-radius: var(--border-radius-lg);
}

.btn-group .btn:last-child {
  border-top-right-radius: var(--border-radius-lg);
  border-bottom-right-radius: var(--border-radius-lg);
}

.btn-group .btn:not(:first-child) {
  margin-left: -1px;
}

/* Icon buttons */
.btn-icon {
  padding: 0.5rem;
  width: var(--touch-target-min);
  height: var(--touch-target-min);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn svg,
.btn .bi {
  flex-shrink: 0;
}

/* Button with loading state */
.btn-loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 1rem;
  height: 1rem;
  top: 50%;
  left: 50%;
  margin-left: -0.5rem;
  margin-top: -0.5rem;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-top-color: transparent;
  animation: spinner 0.6s linear infinite;
}

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

/* Close button */
.btn-close {
  width: 1em;
  height: 1em;
  padding: 0.25em;
  background: transparent url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e") center/1em auto no-repeat;
  border: 0;
  opacity: 0.5;
  cursor: pointer;
}

.btn-close:hover {
  opacity: 1;
}

/* Floating action button */
.btn-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-index-sticky);
}

.btn-float:hover {
  box-shadow: var(--shadow-xl);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .btn {
    font-size: var(--font-size-base);
  }

  .btn-lg {
    font-size: var(--font-size-base);
  }
}