:root {
  --shadow-soft: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-medium: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-hover: 0 12px 48px rgba(0,0,0,0.18);
  --shadow-card: 0 8px 40px rgba(0,0,0,0.15);
  --shadow-inset: inset 0 1px 3px 0 rgba(0,0,0,0.05);
  --shadow-glow: 0 0 8px rgba(255,255,255,0.05);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
  --transition-fast: all 0.15s ease;
  --transition-slow: all 0.5s cubic-bezier(0.25,0.46,0.45,0.94);
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: 1rem 1.5rem;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.5;
  transition: var(--transition);
  outline: none;
  box-shadow: var(--shadow-inset),0 8px 32px rgba(0,0,0,0.1);
  color: #333;
  border-right: 1px solid rgba(255,255,255,0.3);
  border-bottom: 1px solid rgba(255,255,255,0.3)
}

input::placeholder,
textarea::placeholder {
  color: rgba(0,0,0,0.6);
  font-weight: 400
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
input[type="search"]:focus,
textarea:focus,
select:focus {
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(25px) saturate(200%);
  -webkit-backdrop-filter: blur(25px) saturate(200%);
  border: 1px solid rgba(255,255,255,0.4);
  box-shadow: var(--shadow-inset),0 12px 40px rgba(0,0,0,0.15),0 0 0 3px rgba(255,255,255,0.15);
  transform: translateY(-2px) scale(1.02)
}

input[type="text"]:hover,
input[type="email"]:hover,
input[type="password"]:hover,
input[type="tel"]:hover,
input[type="number"]:hover,
input[type="search"]:hover,
textarea:hover,
select:hover {
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(22px) saturate(190%);
  border: 1px solid rgba(255,255,255,0.3);
  box-shadow: var(--shadow-inset),0 10px 36px rgba(0,0,0,0.12)
}

textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6
}

.btn,
button,
input[type="submit"],
input[type="button"],
a.btn {
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 0.9375rem;
  border: 1px solid rgba(255,255,255,0.25);
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  text-decoration: none;
  outline: none;
  transform: perspective(1px) translateZ(0);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(255,255,255,0.2);
  box-shadow: 0 8px 32px rgba(0,0,0,0.1),inset 0 1px 0 rgba(255,255,255,0.2),inset 0 -1px 0 rgba(0,0,0,0.1);
  letter-spacing: 0.02em;
  color: #333
}

.btn:hover,
button:hover,
input[type="submit"]:hover,
input[type="button"]:hover,
a.btn:hover {
  background: rgba(255,255,255,0.3);
  backdrop-filter: blur(25px) saturate(200%);
  -webkit-backdrop-filter: blur(25px) saturate(200%);
  border: 1px solid rgba(255,255,255,0.4);
  box-shadow: 0 16px 48px rgba(0,0,0,0.15),inset 0 1px 0 rgba(255,255,255,0.3),inset 0 -1px 0 rgba(0,0,0,0.05);
  transform: translateY(-2px)
}

.btn:active,
button:active,
input[type="submit"]:active,
input[type="button"]:active,
a.btn:active {
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(15px) saturate(160%);
  transform: translateY(0);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1),inset 0 1px 0 rgba(255,255,255,0.1);
  transition: var(--transition-fast)
}

.btn.loading::before {
  content: "";
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite
}

.glass-3d {
  transform: perspective(1000px) rotateX(0deg) translateZ(0);
  transform-style: preserve-3d;
  transition: var(--transition);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(25px) saturate(180%);
  -webkit-backdrop-filter: blur(25px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0,0,0,0.15),inset 0 1px 0 rgba(255,255,255,0.2)
}

.glass-3d:hover {
  transform: perspective(1000px) rotateX(3deg) translateY(-8px) translateZ(15px);
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(30px) saturate(200%);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2),inset 0 1px 0 rgba(255,255,255,0.3)
}

.glass-card {
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(25px) saturate(180%);
  -webkit-backdrop-filter: blur(25px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: var(--transition);
  box-shadow: 0 12px 40px rgba(0,0,0,0.12),inset 0 1px 0 rgba(255,255,255,0.2);
  position: relative;
  overflow: hidden
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg,transparent,rgba(255,255,255,0.4),transparent)
}

.glass-card:hover {
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(30px) saturate(200%);
  border: 1px solid rgba(255,255,255,0.4);
  box-shadow: 0 20px 60px rgba(0,0,0,0.18),inset 0 1px 0 rgba(255,255,255,0.3);
  transform: translateY(-5px)
}

.glass-deep {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(35px) saturate(160%);
  -webkit-backdrop-filter: blur(35px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 50px rgba(0,0,0,0.2),inset 0 1px 0 rgba(255,255,255,0.1),inset 0 -1px 0 rgba(0,0,0,0.1)
}

.glass-nav {
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,0.1),inset 0 1px 0 rgba(255,255,255,0.15)
}

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

@keyframes float {
  0%,100% {
    transform: translateY(0px)
  }
  50% {
    transform: translateY(-10px)
  }
}

@keyframes glow {
  0%,100% {
    box-shadow: 0 8px 32px rgba(0,0,0,0.1),inset 0 1px 0 rgba(255,255,255,0.2)
  }
  50% {
    box-shadow: 0 12px 40px rgba(0,0,0,0.15),inset 0 1px 0 rgba(255,255,255,0.3)
  }
}

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

.glow-animation {
  animation: glow 2s ease-in-out infinite
}

::-webkit-scrollbar {
  width: 8px
}

::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full)
}

::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.3);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.2);
  transition: var(--transition)
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.4);
  backdrop-filter: blur(15px)
}