/**
 * Glassmorphism Utilities
 * Reusable glass effect components with Apple aesthetics
 */

/* ========================================
   BASE GLASS CARD
   ======================================== */

.glass-card {
  background: var(--color-glass-bg);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glass);
  transition: all var(--transition-base);
}

.glass-card--hover:hover {
  background: var(--color-glass-bg-hover);
  border-color: var(--color-glass-border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.glass-card--interactive {
  cursor: pointer;
}

.glass-card--interactive:active {
  background: var(--color-glass-bg-active);
  transform: translateY(0);
}


/* ========================================
   GLASS CARD VARIANTS
   ======================================== */

.glass-card--sm {
  padding: var(--space-3);
  border-radius: var(--radius-md);
}

.glass-card--md {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
}

.glass-card--lg {
  padding: var(--space-6);
  border-radius: var(--radius-xl);
}

.glass-card--xl {
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
}


/* ========================================
   GLASS BUTTONS
   ======================================== */

.glass-button {
  /* Base glass styling */
  background: var(--color-glass-bg);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);

  /* Typography */
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--letter-spacing-tight);

  /* Spacing */
  padding: var(--button-padding-y) var(--button-padding-x);
  height: var(--button-height-md);

  /* Layout */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);

  /* Interaction */
  cursor: pointer;
  transition: all var(--transition-base);
  user-select: none;
}

.glass-button:hover {
  background: var(--color-glass-bg-hover);
  border-color: var(--color-glass-border-strong);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.glass-button:active {
  background: var(--color-glass-bg-active);
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.glass-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}


/* ========================================
   GLASS BUTTON VARIANTS
   ======================================== */

/* Primary button - Accent color */
.glass-button--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

.glass-button--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.glass-button--primary:active {
  background: var(--color-accent-active);
  border-color: var(--color-accent-active);
}

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

.glass-button--success:hover {
  background: var(--color-success-hover);
  border-color: var(--color-success-hover);
}

/* Warning button */
.glass-button--warning {
  background: var(--color-warning);
  border-color: var(--color-warning);
  color: white;
}

.glass-button--warning:hover {
  background: var(--color-warning-hover);
  border-color: var(--color-warning-hover);
}

/* Error button */
.glass-button--error {
  background: var(--color-error);
  border-color: var(--color-error);
  color: white;
}

.glass-button--error:hover {
  background: var(--color-error-hover);
  border-color: var(--color-error-hover);
}

/* Size variants */
.glass-button--sm {
  height: var(--button-height-sm);
  font-size: var(--font-size-sm);
  padding: var(--space-1) var(--space-3);
}

.glass-button--lg {
  height: var(--button-height-lg);
  font-size: var(--font-size-lg);
  padding: var(--space-3) var(--space-6);
}

/* Full width */
.glass-button--block {
  width: 100%;
}

/* Icon only button */
.glass-button--icon {
  padding: var(--space-2);
  width: var(--button-height-md);
  height: var(--button-height-md);
  border-radius: var(--radius-md);
}


/* ========================================
   GLASS INPUTS
   ======================================== */

.glass-input {
  /* Base glass styling */
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);

  /* Typography */
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);

  /* Spacing */
  padding: var(--input-padding-y) var(--input-padding-x);
  height: var(--input-height);

  /* Layout */
  width: 100%;
  display: block;

  /* Interaction */
  transition: all var(--transition-base);
}

.glass-input::placeholder {
  color: var(--color-text-tertiary);
}

.glass-input:hover {
  border-color: var(--color-glass-border-strong);
  background: rgba(255, 255, 255, 0.08);
}

.glass-input:focus {
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px var(--color-accent-transparent);
}

.glass-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Input with error */
.glass-input--error {
  border-color: var(--color-error);
}

.glass-input--error:focus {
  box-shadow: 0 0 0 3px rgba(255, 59, 48, 0.1);
}


/* ========================================
   GLASS TEXTAREA
   ======================================== */

.glass-textarea {
  /* Inherit input styles */
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  padding: var(--input-padding-y) var(--input-padding-x);
  width: 100%;
  min-height: 120px;
  resize: vertical;
  transition: all var(--transition-base);
}

.glass-textarea:hover {
  border-color: var(--color-glass-border-strong);
  background: rgba(255, 255, 255, 0.08);
}

.glass-textarea:focus {
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px var(--color-accent-transparent);
}


/* ========================================
   GLASS BADGE
   ======================================== */

.glass-badge {
  background: var(--color-glass-bg);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  white-space: nowrap;
}

.glass-badge--primary {
  background: var(--color-accent-transparent);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.glass-badge--success {
  background: rgba(52, 199, 89, 0.1);
  border-color: var(--color-success);
  color: var(--color-success);
}


/* ========================================
   GLASS DIVIDER
   ======================================== */

.glass-divider {
  height: 1px;
  background: var(--color-glass-border);
  border: none;
  margin: var(--space-4) 0;
}

.glass-divider--vertical {
  width: 1px;
  height: auto;
  margin: 0 var(--space-4);
}


/* ========================================
   GLASS OVERLAY
   ======================================== */

.glass-overlay {
  background: var(--color-overlay);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
}

.glass-overlay--strong {
  background: var(--color-overlay-strong);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
}