/* ===================================
   Button Component Styles
   =================================== */

/* Selection styles for all buttons */
.btn::selection,
.btn *::selection {
  background-color: var(--color-primary-dark);
  color: white !important;
}

/* Base Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

/* Remove default button styles */
.btn:focus {
  outline: none;
}

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

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

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

/* Primary Button */
.btn--primary {
  background-color: var(--color-primary);
  color: white !important; /* Force white text */
  font-weight: 600;
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  color: white !important; /* Keep text white on hover */
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  text-decoration: none;
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
  color: white !important; /* Keep text white when clicked */
}

/* Secondary Button */
.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  text-decoration: none;
}

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

/* Ghost Button */
.btn--ghost {
  background-color: transparent;
  color: var(--color-text);
  border-color: transparent;
}

.btn--ghost:hover {
  background-color: var(--color-surface);
  color: var(--color-primary);
  text-decoration: none;
}

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

.btn--success:hover {
  background-color: #0e9f6e;
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  text-decoration: none;
}

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

.btn--danger:hover {
  background-color: #dc2626;
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  text-decoration: none;
}

/* Button with Icon */
.btn__icon {
  margin-right: var(--space-2);
  width: 20px;
  height: 20px;
}

.btn--icon-only {
  padding: var(--space-3);
  width: 44px;
  height: 44px;
}

.btn--icon-only.btn--small {
  padding: var(--space-2);
  width: 36px;
  height: 36px;
}

.btn--icon-only.btn--large {
  padding: var(--space-4);
  width: 52px;
  height: 52px;
}

/* Loading State */
.btn--loading {
  color: transparent;
  pointer-events: none;
}

.btn--loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  top: 50%;
  left: 50%;
  margin-left: -10px;
  margin-top: -10px;
  border: 2px solid white;
  border-radius: 50%;
  border-top-color: transparent;
  animation: btnSpinner 0.8s linear infinite;
}

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

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

/* Button Group */
.btn-group {
  display: inline-flex;
  gap: var(--space-2);
}

.btn-group--vertical {
  flex-direction: column;
}

/* Connected buttons */
.btn-group--connected {
  gap: 0;
}

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

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

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

.btn-group--connected .btn:not(:last-child) {
  border-right: 1px solid rgba(0, 0, 0, 0.1);
}

/* Ripple effect (optional) */
.btn--ripple {
  position: relative;
  overflow: hidden;
}

.btn--ripple::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn--ripple:active::before {
  width: 300px;
  height: 300px;
}