/* Chief Button Components */
/* Button styles from brand guidelines */

/* Base button styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-2xl);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  text-align: center;
  text-decoration: none;
  border-radius: var(--border-radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
  -webkit-user-select: none;
}

/* Primary button - high emphasis */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: 0 4px 12px rgba(74, 158, 255, 0.25);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(74, 158, 255, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(74, 158, 255, 0.2);
}

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

/* Secondary button - medium emphasis */
.btn-secondary {
  background: transparent;
  border: 2px solid var(--theme-border-strong);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(74, 158, 255, 0.05);
}

.btn-secondary:active {
  background: rgba(74, 158, 255, 0.1);
}

/* Ghost button - low emphasis */
.btn-ghost {
  background: transparent;
  color: var(--theme-text-secondary);
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
}

.btn-ghost:hover {
  color: var(--theme-text);
  background: rgba(255, 255, 255, 0.05);
}

.btn-ghost:active {
  background: rgba(255, 255, 255, 0.08);
}

/* Danger button - destructive actions */
.btn-danger {
  background: var(--color-danger);
  color: var(--color-on-danger);
  box-shadow: 0 4px 12px rgba(255, 74, 74, 0.25);
}

.btn-danger:hover {
  background: color-mix(in srgb, var(--color-danger), black 20%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 74, 74, 0.3);
}

.btn-danger:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(255, 74, 74, 0.2);
}

/* Success button */
.btn-success {
  background: var(--color-success);
  color: var(--color-on-success);
  box-shadow: 0 4px 12px rgba(127, 186, 0, 0.25);
}

.btn-success:hover {
  background: color-mix(in srgb, var(--color-success), black 20%);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(127, 186, 0, 0.3);
}

/* Glass button variant */
.btn-glass {
  background: rgba(74, 158, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(74, 158, 255, 0.3);
}

.btn-glass:hover {
  background: rgba(74, 158, 255, 0.25);
  border-color: rgba(74, 158, 255, 0.5);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(74, 158, 255, 0.2);
}

/* Button sizes */
.btn-sm {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-3xl);
  font-size: var(--font-size-lg);
}

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

/* Button states */
.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn.loading {
  color: transparent;
  pointer-events: none;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-right-color: transparent;
  animation: rotate 0.75s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Button group */
.btn-group {
  display: inline-flex;
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.btn-group .btn {
  border-radius: 0;
  margin-right: -1px;
}

.btn-group .btn:first-child {
  border-radius: var(--border-radius-md) 0 0 var(--border-radius-md);
}

.btn-group .btn:last-child {
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
  margin-right: 0;
}

.btn-group .btn:focus {
  z-index: 1;
}

/* Icon button */
.btn-icon {
  padding: var(--spacing-md);
  aspect-ratio: 1;
}

.btn-icon.btn-sm {
  padding: var(--spacing-sm);
}

.btn-icon.btn-lg {
  padding: var(--spacing-lg);
}

.btn-icon-sm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  background: none;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  color: var(--theme-text-muted);
  transition: color 0.15s, background 0.15s;
}

.btn-icon-sm:hover {
  color: var(--color-primary);
  background: rgba(74, 158, 255, 0.1);
}

/* Floating action button */
.btn-fab {
  position: fixed;
  bottom: var(--spacing-2xl);
  right: var(--spacing-2xl);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  z-index: var(--z-dropdown);
}

.btn-fab:hover {
  transform: scale(1.1);
}

/* Pulse animation for CTAs */
.btn-pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(74, 158, 255, 0.7);
  }
  70% {
    box-shadow: 0 0 0 20px rgba(74, 158, 255, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(74, 158, 255, 0);
  }
}

/* Dark theme overrides */
.dark-bg .btn-secondary {
  color: var(--theme-text);
}

/* Light theme overrides */
.light-bg .btn-primary {
  color: white;
}

.light-bg .btn-secondary {
  color: var(--theme-text);
  border-color: var(--theme-border);
}

.light-bg .btn-ghost {
  color: var(--theme-text-secondary);
  border: 1px solid var(--theme-border);
}

.light-bg .btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Danger button variants */
.btn-danger-light {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

.btn-danger-light:hover {
  background: rgba(255, 74, 74, 0.08);
}

.btn-danger-text {
  color: var(--color-danger);
}

.btn-danger-text:hover,
.light-bg .btn-ghost.btn-danger-text:hover {
  background: rgba(255, 74, 74, 0.08);
  border-color: var(--color-danger);
  color: var(--color-danger);
}