.glass-effect {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
}

.gradient-text {
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Security: Prevent password paste */
input[type="password"] {
    -webkit-user-select: none;
    user-select: none;
}

/* Smooth transitions */
input, select, textarea, button {
    transition: all 0.3s ease;
}

/* Loading spinner */
.spinner {
    border: 3px solid rgba(51, 65, 85, 0.3);
    border-top: 3px solid #0ea5e9;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

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

/* Focus styles for accessibility */
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #1e293b;
}

::-webkit-scrollbar-thumb {
    background: #475569;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}