/**
 * Eden Design System - Button Components
 * Frosted glass styled buttons with various states and sizes
 */

/* ===== Base Button ===== */
.eden-btn {
  font-family: var(--eden-font-family-base);
  font-size: var(--eden-font-size-md);
  font-weight: var(--eden-font-weight-medium);
  padding: var(--eden-space-md);
  border-radius: var(--eden-radius-md);
  border: 1px solid var(--eden-color-border-light);
  cursor: pointer;
  transition: all var(--eden-transition-base);

  /* Frosted glass effect */
  background: var(--eden-color-bg-glass-medium);
  backdrop-filter: var(--eden-glass-medium);
  -webkit-backdrop-filter: var(--eden-glass-medium);
  box-shadow: var(--eden-shadow-sm);

  color: var(--eden-color-text-primary);

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--eden-space-sm);

  user-select: none;
  outline: none;
}

.eden-btn:hover {
  background: var(--eden-color-bg-glass-strong);
  backdrop-filter: var(--eden-glass-strong);
  -webkit-backdrop-filter: var(--eden-glass-strong);
  border-color: var(--eden-color-border-medium);
  transform: translateY(-1px);
  box-shadow: var(--eden-shadow-md);
}

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

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

.eden-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ===== Button Variants ===== */
.eden-btn-primary {
  background: linear-gradient(
    135deg,
    var(--eden-color-accent-blue),
    var(--eden-color-accent-blue-dark)
  );
  border-color: transparent;
  color: white;
  box-shadow: var(--eden-shadow-md);
  font-weight: var(--eden-font-weight-semibold);
}

.eden-btn-primary:hover {
  filter: brightness(1.15);
  box-shadow: var(--eden-shadow-lg);
  border-color: transparent;
}

.eden-btn-secondary {
  background: var(--eden-color-surface-tertiary);
  border-color: var(--eden-color-border-medium);
}

.eden-btn-secondary:hover {
  background: var(--eden-color-surface-hover);
}

.eden-btn-success {
  background: var(--eden-color-success);
  border-color: transparent;
  color: white;
  font-weight: var(--eden-font-weight-semibold);
}

.eden-btn-success:hover {
  background: var(--eden-color-success-hover);
  box-shadow: var(--eden-shadow-lg);
}

.eden-btn-danger {
  background: var(--eden-color-danger);
  border-color: transparent;
  color: white;
  font-weight: var(--eden-font-weight-semibold);
}

.eden-btn-danger:hover {
  background: var(--eden-color-danger-hover);
  box-shadow: var(--eden-shadow-lg);
}

.eden-btn-ghost {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

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

.eden-btn-outline {
  background: transparent;
  border-color: var(--eden-color-border-medium);
}

.eden-btn-outline:hover {
  background: var(--eden-color-bg-glass-light);
  border-color: var(--eden-color-accent-primary);
}

/* ===== Button Sizes ===== */
.eden-btn-xs {
  font-size: var(--eden-font-size-xs);
  padding: var(--eden-space-xs);
  border-radius: var(--eden-radius-xs);
}

.eden-btn-sm {
  font-size: var(--eden-font-size-sm);
  padding: var(--eden-space-sm);
  border-radius: var(--eden-radius-sm);
}

.eden-btn-md {
  font-size: var(--eden-font-size-md);
  padding: var(--eden-space-md);
  border-radius: var(--eden-radius-md);
}

.eden-btn-lg {
  font-size: var(--eden-font-size-lg);
  padding: var(--eden-space-lg);
  border-radius: var(--eden-radius-lg);
}

.eden-btn-xl {
  font-size: var(--eden-font-size-xl);
  padding: var(--eden-space-xl);
  border-radius: var(--eden-radius-xl);
}

/* ===== Button Shapes ===== */
.eden-btn-square {
  aspect-ratio: 1;
}

.eden-btn-pill {
  border-radius: 999px;
}

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

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

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

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

.eden-btn-group .eden-btn:not(:last-child) {
  border-right: none;
}

/* ===== Floating Action Button ===== */
.eden-fab {
  position: fixed;
  bottom: var(--eden-space-2xl);
  right: var(--eden-space-2xl);
  width: 56px;
  height: 56px;
  border-radius: var(--eden-radius-round);

  background: linear-gradient(
    135deg,
    var(--eden-color-accent-blue),
    var(--eden-color-accent-blue-dark)
  );
  border: none;
  box-shadow: var(--eden-shadow-2xl);

  display: flex;
  align-items: center;
  justify-content: center;

  cursor: pointer;
  transition: all var(--eden-transition-base);
  z-index: var(--eden-z-sticky);
}

.eden-fab:hover {
  transform: scale(1.1);
  box-shadow: var(--eden-shadow-xl);
}

.eden-fab:active {
  transform: scale(1);
}