/**
 * GLASSTERMINAL DESIGN SYSTEM
 * glass.css - Glassmorphism & Liquid Glass Effects
 *
 * Premium glass effects with configurable blur, transparency,
 * borders, and glow effects. Optimized for performance.
 */

/* ============================================
   BASE GLASS EFFECT
   ============================================ */

.glass {
  background: var(--glass-bg-default);
  backdrop-filter: blur(var(--glass-blur-default)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-default)) saturate(180%);
  border: 1px solid var(--glass-border-default);
  box-shadow: var(--glass-shadow-sm), var(--glass-shadow-inset);
}

/* ============================================
   GLASS INTENSITY VARIANTS
   ============================================ */

.glass-subtle {
  background: var(--glass-bg-subtle);
  backdrop-filter: blur(var(--glass-blur-sm)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--glass-blur-sm)) saturate(150%);
  border: 1px solid var(--glass-border-light);
  box-shadow: var(--glass-shadow-sm);
}

.glass-light {
  background: var(--glass-bg-light);
  backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  border: 1px solid var(--glass-border-light);
  box-shadow: var(--glass-shadow-sm), var(--glass-shadow-inset);
}

.glass-medium {
  background: var(--glass-bg-medium);
  backdrop-filter: blur(var(--glass-blur-lg)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-lg)) saturate(180%);
  border: 1px solid var(--glass-border-medium);
  box-shadow: var(--glass-shadow-md), var(--glass-shadow-inset);
}

.glass-strong {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--glass-blur-xl)) saturate(200%);
  -webkit-backdrop-filter: blur(var(--glass-blur-xl)) saturate(200%);
  border: 1px solid var(--glass-border-strong);
  box-shadow: var(--glass-shadow-lg), var(--glass-shadow-inset);
}

.glass-intense {
  background: var(--glass-bg-intense);
  backdrop-filter: blur(var(--glass-blur-2xl)) saturate(200%) brightness(1.05);
  -webkit-backdrop-filter: blur(var(--glass-blur-2xl)) saturate(200%) brightness(1.05);
  border: 1px solid var(--glass-border-strong);
  box-shadow: var(--glass-shadow-lg), var(--glass-shadow-inset);
}

/* ============================================
   LIQUID GLASS EFFECT (PREMIUM)
   ============================================ */

.glass-liquid {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.12) 0%,
    rgba(255, 255, 255, 0.04) 50%,
    rgba(255, 255, 255, 0.08) 100%
  );
  backdrop-filter: blur(var(--glass-blur-xl)) saturate(200%);
  -webkit-backdrop-filter: blur(var(--glass-blur-xl)) saturate(200%);
  border: 1px solid transparent;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.2),
    0 2px 8px rgba(0, 0, 0, 0.1),
    inset 0 1px 1px rgba(255, 255, 255, 0.4),
    inset 0 -1px 1px rgba(0, 0, 0, 0.1);
  position: relative;
}

.glass-liquid::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.4) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0.2) 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ============================================
   GRADIENT BORDER GLASS
   ============================================ */

.glass-gradient-border {
  background: var(--glass-bg-medium);
  backdrop-filter: blur(var(--glass-blur-lg)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-lg)) saturate(180%);
  position: relative;
  border: none;
}

.glass-gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    var(--color-accent) 0%,
    rgba(255, 255, 255, 0.2) 50%,
    var(--color-secondary) 100%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* Animated gradient border */
.glass-animated-border {
  background: var(--glass-bg-medium);
  backdrop-filter: blur(var(--glass-blur-lg)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-lg)) saturate(180%);
  position: relative;
  border: none;
}

.glass-animated-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    45deg,
    var(--color-accent),
    var(--color-secondary),
    var(--color-accent),
    var(--color-secondary)
  );
  background-size: 300% 300%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: borderFlow 4s linear infinite;
  pointer-events: none;
}

@keyframes borderFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ============================================
   GLOW EFFECTS
   ============================================ */

.glass-glow {
  box-shadow:
    var(--glass-shadow-md),
    var(--glass-shadow-inset),
    0 0 20px var(--color-accent-muted);
}

.glass-glow-strong {
  box-shadow:
    var(--glass-shadow-lg),
    var(--glass-shadow-inset),
    var(--glow-accent);
}

.glass-glow-intense {
  box-shadow:
    var(--glass-shadow-lg),
    var(--glass-shadow-inset),
    var(--glow-accent-strong);
}

/* Pulsing glow animation */
.glass-glow-pulse {
  animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% {
    box-shadow:
      var(--glass-shadow-md),
      var(--glass-shadow-inset),
      0 0 20px var(--color-accent-muted);
  }
  50% {
    box-shadow:
      var(--glass-shadow-lg),
      var(--glass-shadow-inset),
      0 0 40px var(--color-accent-muted),
      0 0 60px rgba(34, 211, 238, 0.1);
  }
}

/* ============================================
   GLASS WITH ACCENT COLORS
   ============================================ */

.glass-accent {
  background: linear-gradient(
    135deg,
    var(--color-accent-subtle) 0%,
    var(--glass-bg-light) 100%
  );
  backdrop-filter: blur(var(--glass-blur-lg)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-lg)) saturate(180%);
  border: 1px solid var(--glass-border-glow);
  box-shadow:
    var(--glass-shadow-md),
    var(--glass-shadow-inset),
    0 0 30px var(--color-accent-subtle);
}

.glass-success {
  background: var(--color-success-subtle);
  backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  border: 1px solid rgba(74, 222, 128, 0.3);
  box-shadow:
    var(--glass-shadow-sm),
    0 0 20px var(--color-success-subtle);
}

.glass-warning {
  background: var(--color-warning-subtle);
  backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  border: 1px solid rgba(251, 191, 36, 0.3);
  box-shadow:
    var(--glass-shadow-sm),
    0 0 20px var(--color-warning-subtle);
}

.glass-error {
  background: var(--color-error-subtle);
  backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  border: 1px solid rgba(248, 113, 113, 0.3);
  box-shadow:
    var(--glass-shadow-sm),
    0 0 20px var(--color-error-subtle);
}

.glass-info {
  background: var(--color-info-subtle);
  backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  border: 1px solid rgba(96, 165, 250, 0.3);
  box-shadow:
    var(--glass-shadow-sm),
    0 0 20px var(--color-info-subtle);
}

/* ============================================
   CORNER TREATMENTS
   ============================================ */

/* Sci-fi clipped corners */
.glass-clipped {
  clip-path: polygon(
    12px 0%,
    100% 0%,
    100% calc(100% - 12px),
    calc(100% - 12px) 100%,
    0% 100%,
    0% 12px
  );
}

.glass-clipped-lg {
  clip-path: polygon(
    20px 0%,
    100% 0%,
    100% calc(100% - 20px),
    calc(100% - 20px) 100%,
    0% 100%,
    0% 20px
  );
}

/* Corner brackets */
.glass-bracketed {
  position: relative;
}

.glass-bracketed::before,
.glass-bracketed::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-accent);
  transition: all var(--transition-normal) var(--ease-out);
  pointer-events: none;
}

.glass-bracketed::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}

.glass-bracketed::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
}

.glass-bracketed:hover::before,
.glass-bracketed:hover::after {
  width: 24px;
  height: 24px;
  filter: drop-shadow(0 0 6px var(--color-accent));
}

/* Corner indicators */
.glass-corner-mark {
  position: relative;
}

.glass-corner-mark::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, transparent 50%, var(--color-accent) 50%);
  opacity: 0.8;
}

/* Cut corners - cyberpunk style */
.glass-cut-corner {
  clip-path: polygon(
    0 0,
    calc(100% - 16px) 0,
    100% 16px,
    100% 100%,
    16px 100%,
    0 calc(100% - 16px)
  );
}

.glass-cut-corner-sm {
  clip-path: polygon(
    0 0,
    calc(100% - 10px) 0,
    100% 10px,
    100% 100%,
    10px 100%,
    0 calc(100% - 10px)
  );
}

.glass-cut-corner-lg {
  clip-path: polygon(
    0 0,
    calc(100% - 24px) 0,
    100% 24px,
    100% 100%,
    24px 100%,
    0 calc(100% - 24px)
  );
}

/* Cut corner - top right only */
.glass-cut-tr {
  clip-path: polygon(
    0 0,
    calc(100% - 16px) 0,
    100% 16px,
    100% 100%,
    0 100%
  );
}

/* Cut corner - bottom left only */
.glass-cut-bl {
  clip-path: polygon(
    0 0,
    100% 0,
    100% 100%,
    16px 100%,
    0 calc(100% - 16px)
  );
}

/* Cut corner with border simulation */
.glass-cut-bordered {
  position: relative;
  clip-path: polygon(
    0 0,
    calc(100% - 16px) 0,
    100% 16px,
    100% 100%,
    16px 100%,
    0 calc(100% - 16px)
  );
}

.glass-cut-bordered::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  clip-path: polygon(
    0 0,
    calc(100% - 16px) 0,
    100% 16px,
    100% 100%,
    16px 100%,
    0 calc(100% - 16px),
    0 0,
    1px 1px,
    1px calc(100% - 17px),
    17px calc(100% - 1px),
    calc(100% - 1px) calc(100% - 1px),
    calc(100% - 1px) 17px,
    calc(100% - 17px) 1px,
    1px 1px
  );
  opacity: 0.6;
  pointer-events: none;
}

/* ============================================
   SCAN LINE EFFECTS
   ============================================ */

.glass-scanline {
  position: relative;
  overflow: hidden;
}

.glass-scanline::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 30%;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(255, 255, 255, 0.03) 50%,
    transparent 100%
  );
  animation: scanline 4s linear infinite;
  pointer-events: none;
}

@keyframes scanline {
  0% { top: -30%; }
  100% { top: 130%; }
}

/* Horizontal scan */
.glass-scan-horizontal::after {
  top: 0;
  left: -100%;
  width: 30%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 100%
  );
  animation: scanHorizontal 3s linear infinite;
}

@keyframes scanHorizontal {
  0% { left: -30%; }
  100% { left: 130%; }
}

/* ============================================
   SHIMMER EFFECTS
   ============================================ */

.glass-shimmer {
  position: relative;
  overflow: hidden;
}

.glass-shimmer::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.1) 50%,
    transparent 100%
  );
  transform: skewX(-20deg);
  animation: shimmer 3s infinite;
  pointer-events: none;
}

@keyframes shimmer {
  0% { left: -50%; }
  100% { left: 150%; }
}

/* Shimmer on hover only */
.glass-shimmer-hover::before {
  animation: none;
  left: -50%;
  transition: left 0.6s var(--ease-out);
}

.glass-shimmer-hover:hover::before {
  left: 150%;
}

/* ============================================
   FLOATING & DEPTH EFFECTS
   ============================================ */

.glass-floating {
  transform: translateZ(0);
  transition:
    transform var(--transition-normal) var(--ease-out),
    box-shadow var(--transition-normal) var(--ease-out);
}

.glass-floating:hover {
  transform: translateY(-4px) translateZ(0);
  box-shadow:
    var(--glass-shadow-lg),
    var(--glass-shadow-inset),
    0 20px 40px rgba(0, 0, 0, 0.2);
}

/* Layered depth */
.glass-layer-1 {
  background: var(--glass-bg-subtle);
  backdrop-filter: blur(var(--glass-blur-sm));
  -webkit-backdrop-filter: blur(var(--glass-blur-sm));
}

.glass-layer-2 {
  background: var(--glass-bg-light);
  backdrop-filter: blur(var(--glass-blur-md));
  -webkit-backdrop-filter: blur(var(--glass-blur-md));
}

.glass-layer-3 {
  background: var(--glass-bg-medium);
  backdrop-filter: blur(var(--glass-blur-lg));
  -webkit-backdrop-filter: blur(var(--glass-blur-lg));
}

/* ============================================
   INTERACTIVE STATES
   ============================================ */

.glass-interactive {
  transition:
    background var(--transition-fast) var(--ease-out),
    border-color var(--transition-fast) var(--ease-out),
    box-shadow var(--transition-fast) var(--ease-out),
    transform var(--transition-fast) var(--ease-out);
}

.glass-interactive:hover {
  background: var(--glass-bg-medium);
  border-color: var(--glass-border-strong);
  box-shadow:
    var(--glass-shadow-md),
    var(--glass-shadow-inset),
    0 0 20px var(--color-accent-subtle);
}

.glass-interactive:active {
  transform: scale(0.98);
  box-shadow:
    var(--glass-shadow-sm),
    inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Selected/Active state */
.glass-selected {
  background: var(--color-accent-subtle);
  border-color: var(--color-accent);
  box-shadow:
    var(--glass-shadow-md),
    var(--glass-shadow-inset),
    0 0 0 1px var(--color-accent),
    var(--glow-accent);
}

/* Embossed/Inset effect */
.glass-inset {
  background: var(--glass-bg-subtle);
  backdrop-filter: blur(var(--glass-blur-sm));
  -webkit-backdrop-filter: blur(var(--glass-blur-sm));
  border: 1px solid var(--color-border-subtle);
  box-shadow:
    inset 0 2px 4px rgba(0, 0, 0, 0.2),
    inset 0 -1px 0 rgba(255, 255, 255, 0.05);
}

/* ============================================
   NEON GLASS
   ============================================ */

.glass-neon {
  background: var(--glass-bg-light);
  backdrop-filter: blur(var(--glass-blur-xl)) saturate(200%);
  -webkit-backdrop-filter: blur(var(--glass-blur-xl)) saturate(200%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.glass-neon::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    var(--color-accent) 0%,
    var(--color-secondary) 50%,
    var(--color-accent) 100%
  );
  filter: blur(12px);
  opacity: 0.4;
  z-index: -1;
  transition: opacity var(--transition-normal) var(--ease-out);
}

.glass-neon:hover::before {
  opacity: 0.6;
}

/* ============================================
   DATA STREAM / MATRIX EFFECT
   ============================================ */

.glass-data-stream {
  position: relative;
  overflow: hidden;
}

.glass-data-stream::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px,
    transparent 2px,
    rgba(255, 255, 255, 0.015) 2px,
    rgba(255, 255, 255, 0.015) 4px
  );
  animation: dataStream 20s linear infinite;
  pointer-events: none;
}

@keyframes dataStream {
  0% { background-position: 0 0; }
  100% { background-position: 0 40px; }
}

/* ============================================
   HOLOGRAPHIC EFFECT
   ============================================ */

.glass-holographic {
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(34, 211, 238, 0.08) 25%,
    rgba(167, 139, 250, 0.08) 50%,
    rgba(236, 72, 153, 0.08) 75%,
    rgba(255, 255, 255, 0.1) 100%
  );
  background-size: 200% 200%;
  backdrop-filter: blur(var(--glass-blur-lg)) saturate(200%);
  -webkit-backdrop-filter: blur(var(--glass-blur-lg)) saturate(200%);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: holographicShift 8s ease infinite;
}

@keyframes holographicShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ============================================
   FALLBACKS & BROWSER SUPPORT
   ============================================ */

/* Feature detection fallback */
@supports not ((backdrop-filter: blur(10px)) or (-webkit-backdrop-filter: blur(10px))) {
  .glass,
  .glass-subtle,
  .glass-light,
  .glass-medium,
  .glass-strong,
  .glass-intense,
  .glass-liquid {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-medium);
  }
}

/* ============================================
   PERFORMANCE OPTIMIZATION
   ============================================ */

.glass-optimized {
  transform: translateZ(0);
  will-change: transform;
  contain: layout style paint;
}

/* Reduce effects for reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .glass-scanline::after,
  .glass-scan-horizontal::after,
  .glass-shimmer::before,
  .glass-animated-border::before,
  .glass-holographic,
  .glass-glow-pulse {
    animation: none;
  }

  .glass-floating:hover {
    transform: none;
  }
}

/* Reduce blur on mobile for performance */
@media (max-width: 768px) {
  .glass,
  .glass-light,
  .glass-medium {
    backdrop-filter: blur(var(--glass-blur-sm)) saturate(150%);
    -webkit-backdrop-filter: blur(var(--glass-blur-sm)) saturate(150%);
  }

  .glass-strong,
  .glass-intense,
  .glass-liquid {
    backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--glass-blur-md)) saturate(180%);
  }
}