/* Glassmorphism CSS Framework - Advanced Glass Effects and Components */

/* Core Glassmorphism Mixins and Base Classes */
.glass-base {
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
}

.glass-base::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  pointer-events: none;
  z-index: -1;
}

/* Glass Card Components */
.glass-card {
  @extend .glass-base;
  background: var(--glass-bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glass);
  padding: var(--space-6);
  transition: all var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.5);
  border-color: rgba(255, 255, 255, 0.3);
}

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

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

.glass-card-hero {
  @extend .glass-card;
  background: linear-gradient(135deg, rgba(226, 54, 54, 0.1) 0%, rgba(30, 58, 138, 0.1) 50%, rgba(251, 191, 36, 0.1) 100%);
  border: 2px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-10);
  text-align: center;
}

.glass-card-interactive {
  @extend .glass-card;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  transition: all var(--transition-fast);
}

.glass-card-interactive:hover {
  transform: translateY(-4px) scale(1.02);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 16px 48px 0 rgba(31, 38, 135, 0.6);
}

.glass-card-interactive:active {
  transform: translateY(-1px) scale(0.98);
  transition: all 0.1s ease;
}

/* Glass Button Components */
.glass-button {
  @extend .glass-base;
  background: var(--glass-bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--marvel-white);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-decoration: none;
  border: none;
  outline: none;
  position: relative;
  overflow: hidden;
}

.glass-button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
  transition: all var(--transition-normal);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  pointer-events: none;
}

.glass-button:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 25px 0 rgba(31, 38, 135, 0.4);
  border-color: rgba(255, 255, 255, 0.4);
}

.glass-button:hover::after {
  width: 120px;
  height: 120px;
}

.glass-button:active {
  transform: translateY(0);
  transition: all 0.1s ease;
}

.glass-button:focus {
  box-shadow: 0 0 0 3px rgba(226, 54, 54, 0.5), 0 8px 25px 0 rgba(31, 38, 135, 0.4);
}

/* Glass Button Variants */
.glass-button-primary {
  @extend .glass-button;
  background: linear-gradient(135deg, rgba(226, 54, 54, 0.3) 0%, rgba(226, 54, 54, 0.1) 100%);
  border-color: rgba(226, 54, 54, 0.4);
  color: var(--marvel-white);
}

.glass-button-primary:hover {
  background: linear-gradient(135deg, rgba(226, 54, 54, 0.4) 0%, rgba(226, 54, 54, 0.2) 100%);
  border-color: rgba(226, 54, 54, 0.6);
}

.glass-button-secondary {
  @extend .glass-button;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.3) 0%, rgba(30, 58, 138, 0.1) 100%);
  border-color: rgba(30, 58, 138, 0.4);
}

.glass-button-secondary:hover {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.4) 0%, rgba(30, 58, 138, 0.2) 100%);
  border-color: rgba(30, 58, 138, 0.6);
}

.glass-button-success {
  @extend .glass-button;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.3) 0%, rgba(16, 185, 129, 0.1) 100%);
  border-color: rgba(16, 185, 129, 0.4);
}

.glass-button-success:hover {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.4) 0%, rgba(16, 185, 129, 0.2) 100%);
  border-color: rgba(16, 185, 129, 0.6);
}

.glass-button-warning {
  @extend .glass-button;
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.3) 0%, rgba(251, 191, 36, 0.1) 100%);
  border-color: rgba(251, 191, 36, 0.4);
  color: var(--marvel-black);
}

.glass-button-warning:hover {
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.4) 0%, rgba(251, 191, 36, 0.2) 100%);
  border-color: rgba(251, 191, 36, 0.6);
}

.glass-button-danger {
  @extend .glass-button;
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.3) 0%, rgba(239, 68, 68, 0.1) 100%);
  border-color: rgba(239, 68, 68, 0.4);
}

.glass-button-danger:hover {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.4) 0%, rgba(239, 68, 68, 0.2) 100%);
  border-color: rgba(239, 68, 68, 0.6);
}

/* Glass Button Sizes */
.glass-button-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
}

.glass-button-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  border-radius: var(--radius-xl);
}

.glass-button-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-xl);
  border-radius: var(--radius-2xl);
}

/* Glass Input Components */
.glass-input {
  @extend .glass-base;
  background: var(--glass-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--marvel-white);
  width: 100%;
  transition: all var(--transition-normal);
  outline: none;
}

.glass-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.glass-input:focus {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(226, 54, 54, 0.6);
  box-shadow: 0 0 0 3px rgba(226, 54, 54, 0.2), var(--shadow-glass);
}

.glass-input:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Glass Modal Components */
.glass-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.glass-modal {
  @extend .glass-card;
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  z-index: var(--z-modal);
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Glass Navigation Components */
.glass-nav {
  @extend .glass-base;
  background: var(--glass-bg-primary);
  border-radius: var(--radius-2xl);
  padding: var(--space-2);
  display: flex;
  gap: var(--space-1);
  align-items: center;
}

.glass-nav-item {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

.glass-nav-item:hover {
  color: var(--marvel-white);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

.glass-nav-item.active {
  color: var(--marvel-white);
  background: linear-gradient(135deg, rgba(226, 54, 54, 0.3) 0%, rgba(226, 54, 54, 0.1) 100%);
  border: 1px solid rgba(226, 54, 54, 0.3);
}

/* Glass Progress Components */
.glass-progress {
  @extend .glass-base;
  background: var(--glass-bg-secondary);
  border-radius: var(--radius-full);
  height: 8px;
  overflow: hidden;
  position: relative;
}

.glass-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--marvel-red) 0%, var(--marvel-blue) 50%, var(--marvel-yellow) 100%);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.glass-progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.4) 50%, transparent 100%);
  animation: progressShine 2s infinite;
}

@keyframes progressShine {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

.glass-progress-lg {
  height: 12px;
}

.glass-progress-xl {
  height: 16px;
}

/* Glass Badge Components */
.glass-badge {
  @extend .glass-base;
  background: var(--glass-bg-primary);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--marvel-white);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.glass-badge-primary {
  @extend .glass-badge;
  background: linear-gradient(135deg, rgba(226, 54, 54, 0.3) 0%, rgba(226, 54, 54, 0.1) 100%);
  border-color: rgba(226, 54, 54, 0.4);
}

.glass-badge-success {
  @extend .glass-badge;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.3) 0%, rgba(16, 185, 129, 0.1) 100%);
  border-color: rgba(16, 185, 129, 0.4);
}

.glass-badge-warning {
  @extend .glass-badge;
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.3) 0%, rgba(251, 191, 36, 0.1) 100%);
  border-color: rgba(251, 191, 36, 0.4);
  color: var(--marvel-black);
}

/* Glass Alert Components */
.glass-alert {
  @extend .glass-card;
  border-left: 4px solid var(--marvel-blue);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.glass-alert-success {
  border-left-color: var(--accent-green);
}

.glass-alert-warning {
  border-left-color: var(--primary-gold);
}

.glass-alert-danger {
  border-left-color: var(--marvel-red);
}

.glass-alert-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
}

.glass-alert-content {
  flex: 1;
}

.glass-alert-title {
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--marvel-white);
}

.glass-alert-message {
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
}

/* Glass Tooltip Components */
.glass-tooltip {
  @extend .glass-base;
  background: rgba(0, 0, 0, 0.8);
  color: var(--marvel-white);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  position: absolute;
  z-index: var(--z-tooltip);
  pointer-events: none;
  opacity: 0;
  transform: translateY(5px);
  transition: all var(--transition-fast);
  max-width: 200px;
  text-align: center;
  word-wrap: break-word;
}

.glass-tooltip.show {
  opacity: 1;
  transform: translateY(0);
}

.glass-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: rgba(0, 0, 0, 0.8);
}

/* Glass Loading Components */
.glass-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top: 3px solid var(--marvel-red);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.glass-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Glass Skeleton Loading */
.glass-skeleton {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.1) 25%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.1) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Glass Divider */
.glass-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
  margin: var(--space-4) 0;
}

.glass-divider-vertical {
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
  margin: 0 var(--space-4);
}

/* Glass Floating Action Button */
.glass-fab {
  @extend .glass-button;
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  padding: 0;
  box-shadow: 0 8px 25px 0 rgba(31, 38, 135, 0.4), 0 4px 12px 0 rgba(0, 0, 0, 0.3);
  z-index: var(--z-fixed);
}

.glass-fab:hover {
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 12px 35px 0 rgba(31, 38, 135, 0.6), 0 6px 16px 0 rgba(0, 0, 0, 0.4);
}

/* Glass Accordion */
.glass-accordion {
  @extend .glass-card;
  padding: 0;
  overflow: hidden;
}

.glass-accordion-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-accordion-item:last-child {
  border-bottom: none;
}

.glass-accordion-header {
  padding: var(--space-4) var(--space-6);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition-fast);
  -webkit-user-select: none;
  user-select: none;
}

.glass-accordion-header:hover {
  background: rgba(255, 255, 255, 0.05);
}

.glass-accordion-content {
  padding: 0 var(--space-6) var(--space-4);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.glass-accordion-item.active .glass-accordion-content {
  max-height: 500px;
  padding: var(--space-4) var(--space-6);
}

.glass-accordion-icon {
  transition: transform var(--transition-fast);
}

.glass-accordion-item.active .glass-accordion-icon {
  transform: rotate(180deg);
}

/* Glass Tab Components */
.glass-tabs {
  @extend .glass-card;
  padding: 0;
}

.glass-tab-list {
  display: flex;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-2);
  gap: var(--space-1);
}

.glass-tab-button {
  padding: var(--space-3) var(--space-4);
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  font-weight: 500;
}

.glass-tab-button:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--marvel-white);
}

.glass-tab-button.active {
  background: rgba(226, 54, 54, 0.2);
  color: var(--marvel-white);
  border: 1px solid rgba(226, 54, 54, 0.3);
}

.glass-tab-content {
  padding: var(--space-6);
}

/* Glass Utility Classes */
.glass-blur-sm {
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.glass-blur-md {
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.glass-blur-lg {
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
}

.glass-blur-xl {
  -webkit-backdrop-filter: blur(32px);
  backdrop-filter: blur(32px);
}

.glass-border-gradient {
  position: relative;
  background: linear-gradient(var(--glass-bg-primary), var(--glass-bg-primary)) padding-box,
              linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0.1) 100%) border-box;
  border: 2px solid transparent;
}

/* Responsive Glass Components */
@media (max-width: 768px) {
  .glass-card {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
  }
  
  .glass-modal {
    margin: var(--space-2);
    max-width: calc(100vw - var(--space-4));
  }
  
  .glass-fab {
    bottom: var(--space-4);
    right: var(--space-4);
    width: 48px;
    height: 48px;
  }
}

/* Performance Optimizations */
.glass-card,
.glass-button,
.glass-input,
.glass-modal {
  will-change: transform, opacity;
  transform: translateZ(0);
}

/* Fallback for browsers without backdrop-filter support */
@supports not (backdrop-filter: blur(20px)) {
  .glass-base,
  .glass-card,
  .glass-button,
  .glass-input,
  .glass-modal {
    background: rgba(255, 255, 255, 0.9);
    color: var(--marvel-black);
  }
  
  .glass-modal-backdrop {
    background: rgba(0, 0, 0, 0.8);
  }
}