/* ============================================================
   ADVANCED GLASS MORPHISM EFFECTS
   Beautiful frosted glass effects for modern UI
   ============================================================ */

:root {
  /* Glass Effect Variables */
  --glass-blur-sm: blur(10px);
  --glass-blur-md: blur(20px);
  --glass-blur-lg: blur(40px);
  --glass-blur-xl: blur(50px);

  /* Light Glass */
  --glass-light-bg: rgba(255, 255, 255, 0.55);
  --glass-light-bg-strong: rgba(255, 255, 255, 0.75);
  --glass-light-border: rgba(255, 255, 255, 0.65);

  /* Dark Glass */
  --glass-dark-bg: rgba(20, 20, 24, 0.55);
  --glass-dark-border: rgba(255, 255, 255, 0.14);

  /* Glass Effects */
  --glass-glow: drop-shadow(0 8px 32px rgba(0, 0, 0, 0.1));
  --glass-glow-dark: drop-shadow(0 8px 32px rgba(0, 0, 0, 0.25));
}

/* ============================================================
   HEADER GLASS EFFECT
   ============================================================ */
.site-header {
  backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  background: rgba(255, 255, 255, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 8px 32px rgba(12, 12, 14, 0.08);
  position: fixed;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
  border-radius: 0 0 12px 12px;
}

/* ============================================================
   CARD GLASS EFFECTS
   ============================================================ */

/* Base Glass Card */
.glass-card {
  position: relative;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 20px;
  box-shadow:
    0 8px 32px rgba(12, 12, 14, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.85),
    inset 0 -1px 0 rgba(255, 255, 255, 0.3);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0.1) 50%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
  z-index: 1;
}

.glass-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 80% at 15% 0%, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0) 50%);
  pointer-events: none;
  z-index: 1;
  opacity: 0.3;
}

.glass-card:hover {
  transform: translateY(-8px);
  backdrop-filter: blur(25px) saturate(190%) brightness(115%);
  -webkit-backdrop-filter: blur(25px) saturate(190%) brightness(115%);
  background: rgba(255, 255, 255, 0.7);
  box-shadow:
    0 16px 48px rgba(12, 12, 14, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    inset 0 -1px 0 rgba(255, 255, 255, 0.4);
}

/* Content wrapper for proper z-index */
.glass-card > * {
  position: relative;
  z-index: 2;
}

/* Dark variant */
.glass-card--dark {
  background: rgba(20, 20, 24, 0.6);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    inset 0 -1px 0 rgba(255, 255, 255, 0.08);
}

.glass-card--dark::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.05) 50%, rgba(255, 255, 255, 0) 100%);
}

.glass-card--dark::after {
  background: radial-gradient(120% 80% at 15% 0%, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 50%);
}

.glass-card--dark:hover {
  background: rgba(20, 20, 24, 0.75);
  box-shadow:
    0 16px 48px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.25),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1);
}

/* Thin variant (less prominent) */
.glass-card--thin {
  background: rgba(255, 255, 255, 0.4);
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 4px 16px rgba(12, 12, 14, 0.06);
}

.glass-card--thin:hover {
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 8px 24px rgba(12, 12, 14, 0.1);
}

/* Strong variant (more prominent) */
.glass-card--strong {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.8);
  box-shadow:
    0 12px 40px rgba(12, 12, 14, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 1),
    inset 0 -1px 0 rgba(255, 255, 255, 0.4);
}

.glass-card--strong:hover {
  background: rgba(255, 255, 255, 0.9);
  box-shadow:
    0 20px 56px rgba(12, 12, 14, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 1),
    inset 0 -1px 0 rgba(255, 255, 255, 0.5);
}

/* ============================================================
   SECTION GLASS EFFECTS
   ============================================================ */

.glass-section {
  position: relative;
  backdrop-filter: blur(15px) saturate(170%);
  -webkit-backdrop-filter: blur(15px) saturate(170%);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 24px;
  box-shadow: 0 8px 32px rgba(12, 12, 14, 0.08);
  overflow: hidden;
}

.glass-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
}

/* ============================================================
   TESTIMONIAL CARD GLASS
   ============================================================ */

.testimonial-card {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 20px;
  box-shadow:
    0 8px 32px rgba(12, 12, 14, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.85);
  position: relative;
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.testimonial-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0.1) 40%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
}

.testimonial-card:hover {
  transform: translateY(-12px) scale(1.02);
  backdrop-filter: blur(25px) saturate(195%) brightness(120%);
  -webkit-backdrop-filter: blur(25px) saturate(195%) brightness(120%);
  background: rgba(255, 255, 255, 0.75);
  box-shadow:
    0 20px 50px rgba(12, 12, 14, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.85);
}

/* ============================================================
   SERVICE CARD GLASS
   ============================================================ */

.service-card {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 20px;
  box-shadow:
    0 8px 32px rgba(12, 12, 14, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0.1) 100%);
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-10px);
  backdrop-filter: blur(25px) saturate(190%) brightness(115%);
  -webkit-backdrop-filter: blur(25px) saturate(190%) brightness(115%);
  background: rgba(255, 255, 255, 0.72);
  box-shadow:
    0 16px 48px rgba(12, 12, 14, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* ============================================================
   BLOCK GLASS EFFECTS
   ============================================================ */

.glass-block {
  backdrop-filter: blur(15px) saturate(170%);
  -webkit-backdrop-filter: blur(15px) saturate(170%);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(12, 12, 14, 0.08);
  padding: 24px;
  transition: all 0.3s ease;
}

.glass-block:hover {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.65);
  box-shadow: 0 8px 32px rgba(12, 12, 14, 0.1);
}

/* Apple Glass Block */
.glass-block--liquid {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 16px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  padding: 24px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-block--liquid:hover {
  backdrop-filter: blur(25px) saturate(190%);
  -webkit-backdrop-filter: blur(25px) saturate(190%);
  background: rgba(255, 255, 255, 0.7);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  transform: translateY(-4px);
}

/* ============================================================
   BUTTON GLASS EFFECTS
   ============================================================ */

.btn-glass {
  backdrop-filter: blur(10px) saturate(160%);
  -webkit-backdrop-filter: blur(10px) saturate(160%);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow:
    0 4px 16px rgba(12, 12, 14, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-glass:hover {
  backdrop-filter: blur(15px) saturate(170%) brightness(110%);
  -webkit-backdrop-filter: blur(15px) saturate(170%) brightness(110%);
  background: rgba(255, 255, 255, 0.85);
  box-shadow:
    0 8px 24px rgba(12, 12, 14, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.95);
}

.btn-glass:active {
  transform: scale(0.98);
}

/* Dark button variant */
.btn-glass-dark {
  backdrop-filter: blur(10px) saturate(160%);
  -webkit-backdrop-filter: blur(10px) saturate(160%);
  background: rgba(20, 20, 24, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-glass-dark:hover {
  backdrop-filter: blur(15px) saturate(170%);
  -webkit-backdrop-filter: blur(15px) saturate(170%);
  background: rgba(20, 20, 24, 0.8);
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

/* ============================================================
   NAVIGATION GLASS
   ============================================================ */

.nav-glass {
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(12, 12, 14, 0.08);
}

/* ============================================================
   DROPDOWN PANEL GLASS
   ============================================================ */

.dropdown-panel {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 12px 40px rgba(12, 12, 14, 0.15);
}

/* ============================================================
   RESPONSIVE FALLBACKS
   ============================================================ */

@supports not (backdrop-filter: blur(1px)) {
  .glass-card { background: rgba(255, 255, 255, 0.95); }
  .glass-card--dark { background: rgba(20, 20, 24, 0.95); }
  .glass-section { background: rgba(255, 255, 255, 0.9); }
  .testimonial-card { background: rgba(255, 255, 255, 0.95); }
  .service-card { background: rgba(255, 255, 255, 0.92); }
  .glass-block { background: rgba(255, 255, 255, 0.92); }
  .btn-glass { background: rgba(255, 255, 255, 0.9); }
  .btn-glass-dark { background: rgba(20, 20, 24, 0.92); }
  .site-header { background: rgba(255, 255, 255, 0.95); }
  .dropdown-panel { background: rgba(255, 255, 255, 0.95); }
}

/* ============================================================
   LIQUID GRADIENT EFFECTS
   ============================================================ */

/* Apple Glass Effect */
.glass-card--liquid {
  position: relative;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 24px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    inset 0 -1px 0 rgba(255, 255, 255, 0.2);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-card--liquid::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(255, 255, 255, 0.6) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
  z-index: 1;
}

.glass-card--liquid::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 80% at 15% 0%,
    rgba(255, 255, 255, 0.8) 0%,
    rgba(255, 255, 255, 0) 50%);
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
}

.glass-card--liquid:hover {
  transform: translateY(-8px);
  backdrop-filter: blur(25px) saturate(190%);
  -webkit-backdrop-filter: blur(25px) saturate(190%);
  background: rgba(255, 255, 255, 0.75);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 1),
    inset 0 -1px 0 rgba(255, 255, 255, 0.4);
}

/* Header Apple Glass Effect */
.site-header--liquid {
  backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  background: rgba(255, 255, 255, 0.65);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.08);
  position: fixed;
}

.site-header--liquid::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0) 100%);
}

/* Apple Glass Section */
.glass-section--liquid {
  position: relative;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 28px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  overflow: hidden;
}

.glass-section--liquid::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0) 100%);
}

/* Apple Service Card */
.service-card--liquid {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 20px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card--liquid::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0.1) 100%);
}

.service-card--liquid:hover {
  transform: translateY(-8px);
  backdrop-filter: blur(25px) saturate(190%);
  -webkit-backdrop-filter: blur(25px) saturate(190%);
  background: rgba(255, 255, 255, 0.7);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 1);
}

/* Apple Button */
.btn-glass--liquid {
  backdrop-filter: blur(15px) saturate(170%);
  -webkit-backdrop-filter: blur(15px) saturate(170%);
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.8);
  color: #0c0c0e;
  font-weight: 600;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-glass--liquid:hover {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255, 255, 255, 0.8);
  transform: translateY(-2px);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 1);
}

.btn-glass--liquid:active {
  transform: scale(0.98);
}

/* ============================================================
   ANIMATION EFFECTS
   ============================================================ */

@keyframes glass-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

.glass-pulse {
  animation: glass-pulse 2s ease-in-out infinite;
}

@keyframes glass-float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

.glass-float {
  animation: glass-float 3s ease-in-out infinite;
}


/* ============================================================
   UTILITY CLASSES
   ============================================================ */

.glass-blur-sm { backdrop-filter: var(--glass-blur-sm); -webkit-backdrop-filter: var(--glass-blur-sm); }
.glass-blur-md { backdrop-filter: var(--glass-blur-md); -webkit-backdrop-filter: var(--glass-blur-md); }
.glass-blur-lg { backdrop-filter: var(--glass-blur-lg); -webkit-backdrop-filter: var(--glass-blur-lg); }
.glass-blur-xl { backdrop-filter: var(--glass-blur-xl); -webkit-backdrop-filter: var(--glass-blur-xl); }

.glass-glow { filter: var(--glass-glow); }
.glass-glow-dark { filter: var(--glass-glow-dark); }